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Page 1: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)
Page 2: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

ICC

/NSS

A S

torm

She

lter S

tand

ard:

D

raft

Str

uctu

ral P

rovi

sion

s of

the

Stan

dard

for D

esig

n an

d C

onst

ruct

ion

of

Stor

m S

helte

rs (I

S-ST

M)

E. S

cott

Teza

k, P

EVi

ce-C

hairm

an, I

CC

/NSS

A C

onse

nsus

Com

mitt

ee o

n St

orm

Sh

elte

rsSt

ruct

ural

Eng

inee

r –U

RS

Cor

pora

tion

Dan

ny K

ilcol

lins

ICC

/NSS

A C

onse

nsus

Com

mitt

ee o

n St

orm

She

lters

Hur

rican

e Sh

elte

r Sur

vey

Prog

ram

Man

ager

–FL

DC

A,

Emer

genc

y M

anag

emen

t

Page 3: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Pres

enta

tion

/ For

um A

gend

a

The

IS-S

TM S

torm

She

lter S

tand

ard

and

Publ

ic C

omm

ent S

ched

ule

Des

ign

Prov

isio

ns (S

truc

tura

l &

Bui

ldin

g En

velo

pe)

Des

ign

Prov

isio

ns (O

pera

tiona

l &

Hum

an F

eatu

res)

Que

stio

ns /

Dis

cuss

ion

Page 4: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

ICC

/NSS

A S

torm

She

lter S

tand

ard

Col

labo

rativ

e Ef

fort

In

tern

atio

nal C

ode

Cou

ncil

Nat

iona

l Sto

rm S

helte

r Ass

ocia

tion

Fede

ral E

mer

genc

y M

anag

emen

t Age

ncy

Beg

un in

Spr

ing

2003

Publ

ic C

omm

ent D

raft

to b

e po

sted

m

id-A

ugus

t 200

6

Page 5: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Stor

m S

helte

r Com

mitt

ee M

embe

rs

Bui

ldin

g C

ode

Offi

cial

sEm

erge

ncy

Plan

ning

Man

ager

sFe

dera

l (FE

MA

) and

Sta

te O

ffici

als

Indu

stry

N

AH

B, N

SSA

, PC

A, N

CM

A, A

ISI,

Inge

rsol

lRan

dU

nive

rsity

facu

lty m

embe

rs:

LSU

, Tex

as T

ech,

Cle

mso

nC

onsu

ltant

s U

RS,

AR

A, P

BA

, DuP

ont

Page 6: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Ove

rall

Goa

l of t

he IS

-STM

Dev

elop

a s

tand

ard

that

pro

vide

s a

very

hig

h de

gree

of l

ife-s

afet

y pr

otec

tion

from

ext

rem

e st

orm

ev

ents

for R

esid

entia

l and

C

omm

unity

She

lters

Que

stio

n: W

hat i

s yo

ur

perf

orm

ance

exp

ecta

tion

of a

st

orm

she

lter?

Page 7: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Purp

ose

of th

e IS

-STM

Esta

blis

h m

inim

um re

quire

men

ts to

saf

egua

rd th

e pu

blic

hea

lth, s

afet

y, a

nd g

ener

al w

elfa

re re

lativ

e to

th

e de

sign

, con

stru

ctio

n, in

stal

latio

n, re

pair,

op

erat

ion

and

mai

nten

ance

of s

torm

she

lters

co

nstr

ucte

d fo

r ref

uge

from

hig

h w

inds

ass

ocia

ted

with

torn

adoe

s an

d hu

rric

anes

. Thi

s st

anda

rd is

in

tend

ed fo

r ado

ptio

n by

gov

ernm

ent a

genc

ies

and

orga

niza

tions

set

ting

mod

el c

odes

to a

chie

ve

unifo

rmity

in th

e te

chni

cal d

esig

n cr

iteria

in b

uild

ing

code

s an

d ot

her r

egul

atio

ns.

Page 8: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Scop

e of

the

IS-S

TMTh

is s

tand

ard

appl

ies

to d

esig

n, c

onst

ruct

ion,

in

stal

latio

n, in

spec

tion,

and

ope

ratio

n of

sto

rm s

helte

rs

cons

truc

ted

inde

pend

ently

or c

onst

ruct

ed a

s sa

fe

room

s w

ithin

a b

uild

ing

for t

he p

urpo

se o

f pro

vidi

ng

safe

refu

ge fr

om s

torm

s th

at p

rovi

de h

igh

win

ds, s

uch

as to

rnad

os o

r hur

rican

es.

Res

iden

tial a

nd C

omm

erci

alIn

clud

es C

onsi

dera

tions

for

Arc

hite

ctur

alSt

ruct

ural

Mec

hani

cal

Elec

tric

alPl

umbi

ngO

ther

Page 9: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Ref

eren

ces

Doc

umen

tsN

SSA

Indu

stry

Sta

ndar

d: S

tand

ard

for t

he D

esig

n,

Con

stru

ctio

n, a

nd P

erfo

rman

ce o

f Sto

rm S

helte

rsFE

MA

320

:Tak

ing

Shel

ter f

rom

the

Stor

mFE

MA

361

:Des

ign

and

Con

stru

ctio

nG

uida

nce

for

Com

mun

ity S

helte

rsA

RC

449

6: G

uide

lines

for H

urric

ane

Evac

uatio

n Sh

elte

r Se

lect

ion

Flor

ida

Bui

ldin

g C

ode

-Enh

ance

d H

urric

ane

Prot

ectio

n A

reas

(EH

PA),

Sect

ion

423.

25FL

DC

A S

tate

wid

e Em

erge

ncy

Shel

ter P

lan

Page 10: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Publ

ic C

omm

ent P

hase

for I

S-ST

MC

ompl

etin

g dr

aft i

n C

omm

ittee

Rel

ease

for 4

5 da

y pu

blic

com

men

t in

mid

-A

ugus

t 200

6D

raft

will

be

post

ed o

n th

e in

tern

et

Com

men

t for

mat

/ su

bmitt

al fo

rms

on th

e in

tern

etN

otic

es, a

gend

as a

nd m

inut

es p

oste

d on

IC

C w

eb s

itew

ww

.iccs

afe.

org/

cs/s

tand

ards

/is-s

tm

Page 11: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Que

stio

ns fo

r IC

CD

avid

Bow

man

-M

anag

er o

f Cod

esIn

tern

atio

nal C

ode

Cou

ncil

(ICC

)C

hica

go D

istri

ct O

ffice

4051

W. F

loss

moo

r Rd.

Cou

ntry

Clu

b H

ills,

IL

6047

8

Ph:

888

-422

-723

3 x4

323

F

ax: 7

08-7

99-0

320

dbow

man

@ic

csaf

e.or

g

Nex

t Mee

ting

–La

te fa

ll / E

arly

Win

ter 2

006

Inte

nt is

to p

ublis

h th

e st

anda

rd in

ear

ly 2

007

Page 12: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Stru

ctur

al L

oads

Win

d Sp

eed

Map

s an

d Sh

elte

r Des

ign

Win

d Sp

eeds

/ W

ind

Load

sD

esig

n m

etho

dsD

esig

n Pa

ram

eter

sW

indb

orne

Deb

risO

ther

Loa

ds a

nd C

onsi

dera

tions

Page 13: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Shel

ter D

esig

nW

ind

Spee

ds

Con

side

red

prob

abili

stic

map

sC

onsi

dere

d hi

stor

ical

dat

a an

d m

aps

Prop

osin

g se

para

te m

aps

Torn

ado

shel

ters

Hur

rican

e sh

elte

rs

Them

e th

roug

hout

IS-S

TM S

tand

ard

Page 14: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

3-se

c pe

ak g

ust

33’a

bove

gra

deEx

posu

re C

ASC

E 7

BA

SIC

WIN

D S

PEED

MA

P (F

ig. 6

-1)

Page 15: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Pea

k G

usts

ove

r La

nd b

y H

urri

cane

Cat

egor

y (a

fter

Vic

kery

et

al, 2

00

0),

and

Enha

nced

Fuj

ita S

cale

(Win

d S

cien

ce a

nd E

ngin

eeri

ng C

ente

r, 2

00

6)

Saff

ir-

Sim

pson

ca

tego

ry

Max

(1 m

in)

sust

aine

d

win

d sp

eed

over

wat

er(m

ph)

Max

(3 s

ec)

gust

spe

ed

over

land

(mph

)

Enha

nced

Fu

jita

Scal

e

Fast

est

¼m

ile w

ind

spee

d ov

er la

nd(m

ph)*

Cal

cula

ted

Max

(3 s

ec)

gust

spe

ed

over

land

(mph

)

EF0

EF1

EF2

EF3

EF4

EF5

40-7

273

-112

113-

157

158-

207

208-

260

>261

65-8

586

-110

111-

135

136-

165

166-

200

>200

TSC

AT

1C

AT

2C

AT

3C

AT

4C

AT

5

<74

74-9

596

-110

111-

130

131-

155

>155

)

<82

82-1

0810

9-13

013

1-15

615

7-19

1>1

91

* Orig

inal

Fas

test

¼m

ph w

ind

spee

ds p

ropo

sed

for F

ujita

Sca

le

Page 16: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

Torn

ado

Shel

ter D

esig

n W

ind

Spee

ds

Page 17: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

Hur

rica

ne S

helte

r Des

ign

Win

d Sp

eeds

160

Page 18: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Ret

urn

Peri

od C

ompa

riso

ns

Page 19: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

) Cat

5 –

Hur

rican

e Ca

mill

e

Stro

ng C

at 4

–H

urric

ane

Andr

ew

Wea

k Ca

t 4

Hur

rican

e Ch

arle

yF3

tor

nado

Page 20: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Cal

cula

tion

of W

ind

Load

s(U

se A

SCE

7, a

nd a

djus

t as

prop

osed

)

Velo

city

Pre

ssur

e (p

sf):

q =

0.00

256

KzK

ztK

dV2 I

Kz=

Velo

city

Pre

ssur

e Ex

posu

re

Coe

ffici

ent

Kzt

= To

pogr

aphi

c Fa

ctor

Kd

= W

ind

Dire

ctio

nalit

y Fa

ctor

V=

Des

ign

Win

d Sp

eed

I= Im

port

ance

Fac

tor

Page 21: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Kz

Vel

ocity

Pre

ssur

e C

oeff

icie

nt

and

Site

Exp

osur

eVe

loci

ty p

rofil

es re

mai

n un

chan

ged,

but

se

lect

ion

of e

xpos

ure

cate

gorie

s is

m

odifi

edU

se E

xpos

ure

C fo

r Tor

nado

She

lters

–M

WFR

S an

d C

&C

Use

Exp

osur

e C

Hur

rican

e Sh

elte

rs –

MW

FRS

and

C&

CEx

cept

ion:

Exp

osur

e B

is p

erm

itted

in c

ases

w

here

this

roug

hnes

s w

ill v

ery

clea

rly re

mai

n in

pl

ace

even

afte

r an

inte

nse

hurr

ican

e (M

WFR

S on

ly)

Page 22: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

‘Typ

e’of

Exp

osur

e B

Impo

rtan

t

Page 23: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Exam

ple

of p

re-s

torm

Exp

osur

e B,

be

com

ing

Expo

sure

C d

urin

g st

orm

Hur

rican

e An

drew

Page 24: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Kzt

Topo

grap

hic

Fact

or

Acc

ount

s fo

r spe

edup

in w

ind

near

top

of h

ills,

ridg

es a

nd e

scar

pmen

ts

Torn

ado

Shel

ter

Kzt

= 1.

0Ef

fect

s of

topo

grap

hy o

n to

rnad

o w

inds

peed

sar

e un

know

n

Hur

rican

e Sh

elte

rPe

r ASC

E 7-

05

Page 25: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Kd

Dir

ectio

nalit

y Fa

ctor

Acc

ount

s fo

r red

uced

pro

babi

lity

of m

axim

um

win

d sp

eed

occu

rrin

g si

mul

tane

ousl

y w

ith

mos

t vul

nera

ble

win

d di

rect

ion

ASC

E 7-

05

Kd

= 0.

85

IS-S

TM H

urric

ane

and

Torn

ado

Shel

ter

Kd

= 1.

0C

hang

ing

win

d di

rect

ion

may

brin

g m

axim

um o

r nea

r m

axim

um w

ind

spee

ds o

ver a

wid

e ra

nge

of w

ind

dire

ctio

ns

Page 26: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

IIm

port

ance

Fac

tor

Acc

ount

s fo

r cha

nge

in M

RI b

ased

on

rela

tive

leve

l of h

azar

d to

hum

an li

fe

ASC

E 7-

05

I = 1

.15

for s

helte

rsIS

-STM

Hur

rican

e an

d To

rnad

o Sh

elte

rI =

1.0

Alre

ady

usin

g an

‘ulti

mat

e’w

ind

spee

d w

ith lo

ng

mea

n re

curr

ence

inte

rval

Page 27: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Sum

mar

y of

Vel

ocity

Pre

ssur

e D

iffe

renc

es

ASC

E 7-

02K

zba

sed

on e

xp B

or

CK

d=

0.85

V =

2% a

nnua

l pro

b(6

4% c

hanc

e in

50

year

s)I =

1.1

5

Dra

ft IS

-STM

Sta

ndar

dK

zex

p B

lim

ited

Kd

= 1.

0V

= 0.

01%

ann

ual

prob

(0.5

% c

hanc

e in

50

year

s)I =

1.0

Page 28: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Load

Fac

tor

Stre

ngth

des

ign.

Use

the

ASC

E 7

load

co

mbi

natio

ns w

ith th

e fo

llow

ing

mod

ifica

tions

:In

load

com

bina

tion

3, re

plac

e 0.

8W w

ith 0

.5W

In lo

ad c

ombi

natio

ns 4

and

6, r

epla

ce 1

.6W

with

1.0

WEx

cept

ion

1 sh

all n

ot a

pply

Allo

wab

le s

tres

s de

sign

. Use

the

ASC

E 7

load

co

mbi

natio

ns w

ith th

e fo

llow

ing

mod

ifica

tions

:In

load

com

bina

tions

5, 6

, and

7 re

plac

e W

with

0.6

W

Page 29: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Des

ign

Pres

sure

Com

pari

son

Exam

ple

-Ft.

Laud

erda

lePr

opos

ed D

esig

n Pr

essu

res

are

44%

la

rger

than

ASC

E 7

Prop

osed

Des

ign

Pres

sure

s ar

e 13

%

low

er th

an E

HPA

(usi

ng re

com

men

ded

win

d sp

eed

of A

SCE

7 +

40 m

ph)

Perc

enta

ges

will

var

y w

ith lo

catio

n al

ong

the

coas

t

Page 30: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Encl

osur

e C

lass

ific

atio

nD

eter

min

ed p

er A

SCE

7-05

and

: La

rges

t ope

ning

on

each

sid

e of

the

build

ing

mus

t be

cons

ider

ed, i

n tu

rn, a

s be

ing

open

eve

n th

ough

it m

ay

have

pro

tect

ion

Expe

rienc

e ha

s sh

own

-if

open

ings

are

no

t bre

ache

d, p

eopl

e op

en s

helte

r doo

rs

and

win

dow

s du

ring

the

stor

mD

amag

e to

a w

indo

w o

r doo

r by

a la

rger

th

an te

sted

for m

issi

le s

houl

d no

t res

ult i

n in

tern

al p

ress

uriz

atio

n fa

ilure

Page 31: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Inte

rnal

Pre

ssur

e

For T

orna

do s

helte

rs –

APC

mus

t be

con

side

red

Use

GC

pi=

+/-0

.18

+ A

PC c

ontr

ibut

ion

Use

GC

pi=

+/-0

.18

+ de

sign

for v

entin

gU

se G

Cpi

= +/

-0.5

5 Fo

r Hur

rican

e sh

elte

rs –

no A

PC

Use

GC

pi=

+/-0

.18

or +

/-0.

55 p

er A

SCE

and

larg

est o

peni

ng re

quire

men

t

Page 32: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Win

dbor

ne D

ebri

s

Muc

h ne

w re

sear

ch re

cent

ly p

ublis

hed

and

unde

rway

Aer

odyn

amic

s –

win

d tu

nnel

and

an

alyt

ical

and

num

eric

al m

odel

s in

dica

te

that

mis

sile

s tr

avel

at h

ighe

r win

d sp

eeds

than

pre

viou

sly

assu

med

Post

-dis

aste

r deb

ris in

form

atio

n ga

ther

ed to

hel

p de

velo

p/va

lidat

e ne

w

debr

is fl

ight

/traj

ecto

ry m

odel

s

Page 33: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

IS-S

TM T

orna

do M

issi

le

Rep

rese

ntat

ive

mis

sile

= 1

5 lb

2x4

H

oriz

onta

l mis

sile

sp

eeds

(see

tabl

e)

Cur

rent

FEM

A 3

61

mis

sile

for a

ll zo

nes:

15 lb

2x4

H

oriz

onta

l spe

ed =

100

m

phVe

rtic

al s

peed

= 6

7 m

ph

Zone

-D

esig

n W

ind

Spee

d (V

)

Hor

izon

tal

Mis

sile

Sp

eed

-To

rnad

o

Vert

ical

M

issi

le

Spee

d -

Torn

ado

Zone

IV –

250

mph

100

mph

67 m

ph

Zone

III –

200

mph

90 m

ph60

mph

Zone

II –

160

mph

85 m

ph56

mph

Zone

I –

130

mph

80 m

ph53

mph

Page 34: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

IS-S

TM H

urri

cane

Mis

sile

Hur

rican

e D

esig

n W

ind

Spee

d (V

)

Hor

izon

tal

Mis

sile

Sp

eed

-H

urric

ane

Vert

ical

M

issi

le

Spee

d -

Hur

rican

e

255

mph

102

mph

26 m

ph

250

mph

100

mph

25 m

ph

210

mph

84 m

ph21

mph

190

mph

76 m

ph19

mph

180

mph

72 m

ph18

mph

170

mph

68 m

ph17

mph

160

mph

64 m

ph16

mph

230

mph

92 m

ph23

mph

240

mph

96 m

ph24

mph

220

mph

88 m

ph22

mph

200

mph

80 m

ph20

mph

Rep

rese

ntat

ive

mis

sile

=

9 lb

2x4

H

oriz

onta

l mis

sile

spe

ed

0.4

x V

V =

peak

gus

t win

d sp

eed

See

tabl

eVe

rtic

al m

issi

le s

peed

0.

1 x

V

Cur

rent

FB

C la

rge

mis

sile

:9

lb 2

x4

Hor

izon

tal s

peed

= 3

4 m

ph

Page 35: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Oth

er D

ebri

s H

azar

ds

Rol

love

r haz

ards

La

ydow

nha

zard

sC

olla

pse

haza

rds

Sitin

g re

quire

men

ts to

min

imiz

e th

ese

haza

rds

If th

ey a

re p

rese

nt, m

ust d

esig

n fo

r im

pact

s

Page 36: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Prot

ectio

n of

Bui

ldin

g En

velo

pe

Wal

ls a

nd ro

of s

yste

ms

mus

t be

impa

ct re

sist

ant

Roo

fs c

anno

t hav

e lo

ose-

laid

roof

co

verin

gsO

peni

ngs

requ

ired

to b

e de

bris

im

pact

resi

stan

t or h

ave

impa

ct

resi

stan

t cov

erin

gs (o

peni

ng

prot

ectiv

es)

Page 37: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Doo

r Sys

tem

sSh

elte

r doo

rs w

ill b

e op

ened

dur

ing

the

stor

m, f

or n

umer

ous

reas

ons

incl

udin

g

•lat

e ar

rival

s

•inv

estig

atin

g da

mag

e

•mov

ing

betw

een

shel

ter a

reas

•peo

ple

wan

ting

to s

mok

e

•etc

. -h

uman

nat

ure

Page 38: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Doo

rs a

nd o

peni

ng p

rote

ctiv

es

Mus

t res

ist d

esig

n w

ind

pres

sure

sM

ust r

esis

t des

ign

forc

es fr

om

repr

esen

tativ

e w

indb

orne

deb

ris

No

min

imum

requ

irem

ents

for

hing

es o

r lat

ches

–m

ust p

ast t

ests

Page 39: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Baff

led

or A

lcov

e En

try

Des

igns

Page 40: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Ope

ning

Pro

tect

ives

Torn

ado

Shel

ters

Rea

dily

ava

ilabl

e R

eadi

ly in

stal

led

/ clo

sed

All

com

pone

nts

atta

ched

to p

rote

ctio

nH

urric

ane

Shel

ters

Allo

wed

to b

e st

ored

and

inst

alle

d ov

er

time

Mus

t res

ist p

ress

ures

and

deb

ris im

pact

Page 41: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Will

sys

tem

s re

quiri

ng o

pera

tion

or

inst

alla

tion

wor

k as

pla

nned

?

Do

Shel

ter o

pera

tors

hav

e th

e kn

owle

dge

time

mat

eria

ls, t

ools

, key

s

to in

stal

l/ope

rate

hur

rican

e pr

otec

tions

sy

stem

s?

Ope

ning

Pro

tect

ives

( ie.

, Win

dow

Pr

otec

tion

Syst

ems)

Page 42: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Com

plet

e Te

stin

g Pr

otoc

ol fo

r Pr

essu

re a

nd D

ebri

s Im

pact

sC

ompl

ete

prot

ocol

for p

ress

ure

test

ing

of w

alls

, roo

fs, a

nd o

peni

ng

prot

ectiv

esC

ompl

ete

prot

ocol

for d

ebris

im

pact

test

ing

of w

alls

, roo

fs, a

nd

open

ing

prot

ectiv

es

Page 43: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Oth

er L

oads

Page 44: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Floo

d H

azar

ds –

Torn

ado

Shel

ters

Prop

osed

pro

visi

ons

-sh

elte

rs s

houl

d be

con

stru

cted

in

acco

rdan

ce w

ith lo

cal f

lood

plai

n or

dina

nces

Use

mos

t res

tric

tive

of:

500

year

floo

d el

evat

ion,

whe

n de

term

ined

100

year

floo

d el

evat

ion

+ 1’

(BFE

+1)

Loca

l req

uire

men

ts

Page 45: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Floo

d H

azar

ds -

Hur

rica

ne S

helte

rsU

se m

ost r

estr

ictiv

e of

:C

at 5

hur

rican

e su

rge

zone

as

indi

cate

d by

SL

OSH

or o

ther

reco

gniz

ed m

odel

sSt

orm

sur

ge o

r rai

nfal

l flo

odin

g co

nsid

erat

ions

500

year

floo

d el

evat

ion,

whe

n de

term

ined

100

year

floo

d el

evat

ion

+ 1’

(BFE

+1)

Loca

l req

uire

men

ts

Page 46: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Rai

n Lo

ads

for H

urri

cane

She

lters

Spec

ial P

reca

utio

ns s

houl

d be

ta

ken:

Hea

vy ra

ins

can

last

sev

eral

day

sPa

y sp

ecia

l atte

ntio

n to

des

ign

of

seco

ndar

y dr

aina

geD

rain

s m

ay b

ecom

e cl

ogge

d by

deb

ris o

r w

ind-

indu

ced

mov

emen

t of r

oof g

rave

lM

ust c

aref

ully

con

side

r pon

ding

phe

nom

ena

Page 47: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Iden

tific

atio

n of

Des

ign

Para

met

ers

Spec

ified

in S

ectio

n 10

6 an

d 10

7A

ddre

sses

the

need

for s

peci

al

insp

ectio

nsA

ddre

sses

sig

nage

and

labe

ling

Add

ress

es id

entif

icat

ion

of d

esig

n pa

ram

eter

s on

bui

ldin

g pl

ans

Prov

ides

squ

are

foot

age

assu

mpt

ions

Page 48: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

App

licat

ion

of P

ress

ures

and

D

ebri

s R

equi

rem

ents

Win

d Pr

essu

re C

riter

iaA

pply

to a

ll M

WFR

S pe

r ASC

E 7

App

ly to

all

C&

C p

er A

SCE

7In

clud

ing

all d

oors

and

pro

tect

ion

devi

ces

Deb

ris Im

pact

Crit

eria

App

ly to

all

exte

rior s

urfa

ces

prov

idin

g pr

otec

tion

for s

helte

r occ

upan

ts

Page 49: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Dis

cuss

ion

Topi

csIC

C/N

SSA

Sto

rm S

helte

r Sta

ndar

d:

Dra

ft St

ruct

ural

Pro

visi

ons

of th

e St

anda

rd fo

r Des

ign

and

Con

stru

ctio

n of

St

orm

She

lters

Nex

t up

is th

e O

pera

tiona

l Pro

visi

ons

Dan

ny K

ilcol

lins

–FL

DC

A S

helte

r Pro

gram

M

anag

er, I

CC

/NSS

A C

omm

ittee

Mem

ber

Page 50: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

Shel

ter D

esig

n C

onsi

dera

tions

: Sp

ecia

l Occ

upan

cy

Dan

ny J

. Kilc

ollin

s, F

PEM

Flor

ida

Div

. of E

mer

genc

yM

anag

emen

t

Page 51: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Info

rmat

ion

Sour

ces

Des

ign

& C

onst

ruct

ion

Gui

danc

e fo

r C

omm

unity

She

lters

(FEM

A 3

61)

Taki

ng S

helte

r fro

m th

e St

orm

: Bui

ldin

g a

Safe

Roo

m in

side

you

r Hou

se(F

EMA

32

0)N

atio

nal S

torm

She

lter A

ssoc

iatio

n St

anda

rd (N

SSA

400

0-02

) Fl

orid

a’s

Publ

ic S

helte

r Des

ign

Crit

eria

(s

ectio

n 42

3.25

, Flo

rida

Bui

ldin

g C

ode)

Page 52: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Info

rmat

ion

Sour

ces

MA

SS C

AR

E—M

anag

emen

t and

O

pera

tions

(AR

C 3

041)

Inte

rnat

iona

l Cod

e C

ounc

il (IC

C)

Cod

esVa

rious

FEM

A, A

RC

and

FB

C

publ

icat

ions

and

pro

visi

ons

Page 53: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cy

Nor

mal

use

occ

upan

cy c

ode

reqm

’tsap

ply,

unl

ess

othe

rwis

e no

ted

Ded

icat

ed s

ingl

e-us

e sh

elte

rs a

re

“ass

embl

y”oc

cupa

ncy

Shel

ter d

efin

ition

:A

bui

ldin

g, s

truc

ture

, or p

ortio

n(s)

th

ereo

f, co

nstr

ucte

d in

acc

orda

nce

with

th

is s

tand

ard,

des

igna

ted

for u

se d

urin

g a

seve

re s

torm

eve

nt.

Page 54: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cySh

elte

r req

m’ts

sepa

rate

d in

to tw

o ty

pes:

Torn

ado

Hur

rican

eSh

elte

r Typ

es s

ubdi

vide

d:La

rge,

51

or m

ore

occu

pant

sSm

all,

50 o

r les

s oc

cupa

nts

Exce

ptio

n: R

esid

entia

l and

One

& T

wo

Fam

ily D

wel

lings

(16

or le

ss o

ccup

ants

)

Page 55: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cyO

ccup

ant d

ensi

ty b

ased

upo

n “n

et u

sabl

e flo

or a

rea”

Net

usa

ble

is s

pace

that

can

act

ually

be

occu

pied

by

a pe

rson

Num

ber o

f sta

ndin

g, s

eate

d, w

heel

chai

r an

d be

drid

den

spac

es to

be

dete

rmin

ed b

y ap

plic

able

aut

horit

ySh

elte

rs s

hall

be s

ized

for a

t lea

st o

ne

whe

elch

air s

pace

per

200

occ

upan

tsD

esig

n oc

cupa

ncy

perio

d:To

rnad

o @

2 h

ours

Hur

rican

e @

24

hour

s

Page 56: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cyM

inim

um n

et u

sabl

e flo

or a

rea

per

occu

pant

, Com

mun

ity:

Torn

ado

Stan

ding

or s

eate

d =

5 sq

.ft.

Whe

elch

air =

10

sq.ft

.B

edrid

den

= 30

sq.

ft.H

urric

ane

Stan

ding

or s

eate

d =

20 s

q.ft.

Whe

el C

hair

= 20

sq.

ft.B

edrid

den

= 40

sq.

ft.

Page 57: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cyM

inim

um n

et u

sabl

e flo

or a

rea

per

occu

pant

, Res

iden

tial:

Torn

ado

Stan

ding

or s

eate

d =

5 sq

.ft.

Exce

ptio

n fo

r 1&

2 Fa

mily

Dw

ellin

gs =

3 s

q.ft.

Whe

elch

air =

10

sq.ft

.B

edrid

den

= 30

sq.

ft.H

urric

ane

Stan

ding

or s

eate

d =

10 s

q.ft.

Ex

cept

ion

for 1

&2

Fam

ily D

wel

lings

= 7

sq.

ft.W

heel

Cha

ir =

10 s

q.ft.

Bed

ridde

n =

40 s

q.ft.

Page 58: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cyN

umbe

r of E

gres

s D

oors

Det

erm

ined

by

norm

al u

se a

s re

q’d

by

appl

icab

le c

ode

“Ass

embl

y”us

e sh

all a

pply

to s

ingl

e-us

e sh

elte

rsD

oors

mus

t sw

ing

in d

irect

ion

of e

gres

sA

n em

erge

ncy

esca

pe o

peni

ng is

req’

dw

here

two

or fe

wer

doo

rs th

at le

ad to

ou

tsid

e of

the

shel

ter s

win

g in

war

d to

sh

elte

r spa

ceEx

cept

ion

for d

oorw

ays

prot

ecte

d fr

om

accu

mul

atio

n of

deb

ris

Page 59: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cy

Shel

ters

sha

ll be

pro

vide

d w

ith a

n ac

cess

ible

rout

e (A

NSI

A11

7.1)

Fire

Ext

ingu

ishe

r req

’dw

ithin

sh

elte

r are

asEx

cept

ion

for 1

&2

Fam

ily D

wel

lings

Page 60: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Use

and

Occ

upan

cyTw

o-ho

ur fi

re b

arrie

rsep

arat

ion

req’

dbe

twee

n sh

elte

r spa

ce a

nd

othe

r bui

ldin

g ar

eas

Incl

udes

pen

etra

tions

and

ope

ning

sEx

cept

ion

for 1

&2

Fam

ily D

wel

lings

Exte

rior w

alls

of s

torm

she

lters

to

be c

onst

ruct

ed w

ith fi

re-r

esis

tanc

e re

q’d

by a

pplic

able

cod

e

Page 61: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Sign

age

req’

dfo

r bot

h To

rnad

o an

d H

urric

ane

Shel

ters

, Lar

ge &

Sm

all

Inte

rior s

igna

ge m

ust d

irect

occ

upan

ts to

sh

elte

r are

asSi

gnag

e re

q’d

on in

side

of s

helte

r are

a(s)

Floo

r Pla

n si

gn re

q’d

in fa

cilit

y m

anag

er’s

of

fice,

insi

de s

helte

r are

a &

at e

xits

Exce

ptio

n fo

r 1&

2 Fa

mily

Dw

ellin

gs

Page 62: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Torn

ado

Shel

ters

Nat

ural

Ven

tilat

ion

req’

dVe

ntila

tion

and

inte

rnal

pre

ssur

e re

lief m

ay b

e de

sign

ed c

oncu

rren

tlyTw

o op

tions

bas

ed o

n N

SSA

sta

ndar

d; a

bove

gr

ound

and

bel

ow g

roun

d ca

ses

Out

side

air

inta

kes

to b

e lo

cate

d 10

ft fr

om

noxi

ous

cont

amin

ant s

ourc

esEx

haus

t or i

ntak

e op

enin

gs to

be

prot

ecte

d

Page 63: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Torn

ado

Shel

ters

Bac

k-up

or e

mer

genc

y ge

n-se

ts n

ot re

quire

dEm

erge

ncy

light

ing

req’

d; a

vg=1

f.c.

Exce

ptio

ns fo

r sm

all s

helte

rs a

nd 1

&2

fam

ily

dwel

lings

; one

flas

hlig

ht p

er 1

0 oc

cupa

nts

Plum

bing

/San

itatio

nTo

ilet f

ixtu

res:

up

to 5

0=1;

51-

500=

2; th

en 1

add

’l:50

0Te

mpo

rary

fixt

ures

acc

epta

ble

Exce

ptio

n fo

r 1&

2 Fa

mily

Dw

ellin

gsH

andw

ashi

ngfa

cilit

ies

not r

eq’d

for s

mal

l; 1:

1000

for

larg

e

Page 64: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Torn

ado

Shel

ters

Plum

bing

/Wat

erN

o po

tabl

e or

was

te w

ater

reqm

’tsfo

r eith

er

larg

e or

sm

all s

helte

rsFi

rst-a

id k

it re

q’d

for s

mal

l and

larg

e sh

elte

rsEx

cept

ion

for 1

&2

Fam

ily D

wel

lings

Page 65: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Hur

rican

e Sh

elte

rsN

atur

al V

entil

atio

n re

q’d

Two

optio

ns b

ased

on

NSS

A s

tand

ard;

abo

ve

grou

nd a

nd b

elow

gro

und

case

sO

utsi

de a

ir in

take

s to

be

loca

ted

10 ft

from

no

xiou

s co

ntam

inan

t sou

rces

Exha

ust o

r int

ake

open

ings

to b

e pr

otec

ted

Mec

hani

cal v

entil

atio

n re

q’d

cons

iste

nt

with

em

erge

ncy

pow

er s

yste

m

Page 66: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Hur

rican

e Sh

elte

rsEm

erge

ncy

pow

er s

yste

m re

q’d;

sys

tem

to s

uppo

rt

occu

pied

spa

ces,

crit

ical

sup

port

are

as &

sys

tem

s:Li

fe s

afet

y sy

stem

sSt

andb

y lig

htin

g; a

vg=1

0 f.c

.St

andb

y br

anch

wal

l circ

uits

Mec

hani

cal v

entil

atio

n ci

rcui

tsPe

rman

ent-i

nsta

lled

stan

dby

gen-

sets

not

requ

ired

Stan

dby

gen-

set(s

) to

be in

depe

nden

t of o

ff-si

te

utili

ties

All

com

pone

nts

of e

mer

genc

y po

wer

sys

tem

to b

e pr

otec

ted

from

des

ign

even

t; in

clud

ing

tem

pora

ry

gen-

set

Page 67: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Hur

rican

e Sh

elte

rsSt

andb

y ge

n-se

t to

oper

ate

cont

inuo

usly

for 2

4 H

ours

Stan

dby

& e

mer

genc

y po

wer

sys

tem

’s

acce

ss ro

ute

to b

e pr

otec

ted

from

de

sign

eve

ntEm

erge

ncy

light

ing

req’

d; a

vg=1

f.c.

Exce

ptio

ns fo

r sm

all s

helte

rs a

nd 1

&2

fam

ily

dwel

lings

; one

flas

hlig

ht p

er 1

0 oc

cupa

nts

Page 68: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Hur

rican

e Sh

elte

rsPl

umbi

ng/S

anita

tion

Smal

l she

lter:

One

toile

tLa

rge

Shel

ter:

One

toile

t/50

occu

pant

sSm

all S

helte

r: H

andw

ashi

ngfa

cilit

ies

not

req’

dLa

rge

Shel

ter:

One

Han

dwas

hing

faci

lity/

100

occu

pant

sTe

mpo

rary

fixt

ures

acc

epta

ble

Exce

ptio

ns fo

r 1&

2 Fa

mily

Dw

ellin

gs

Page 69: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Hur

rican

e Sh

elte

rsPl

umbi

ng/W

ater

Smal

l she

lter:

No

reqm

’tsfo

r pot

able

or

was

te w

ater

Larg

e Sh

elte

r: O

ne g

allo

n po

tabl

e w

ater

/occ

upan

tLa

rge

Shel

ter:

1 1

/2 g

allo

ns w

aste

w

ater

/occ

upan

tTe

mpo

rary

or o

n-de

man

d re

sour

ces

acce

ptab

le

Page 70: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Esse

ntia

l Fea

ture

s &

Acc

esso

ries

Hur

rican

e Sh

elte

rsFi

rst-a

id k

it re

q’d

for s

mal

l and

larg

e sh

elte

rsEx

cept

ion

for 1

&2

Fam

ily D

wel

lings

Page 71: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

2006

Flo

rida

Gov

erno

r's H

urric

ane

Con

fere

nce

ICC

/NSS

A –

Stan

dard

for t

he D

esig

n an

d C

onst

ruct

ion

of S

torm

She

lters

(IS-

STM

)

Stat

usFi

rst c

omm

ittee

mee

ting

(May

200

3)G

athe

r inp

ut fr

om s

cien

tific

, tec

hnic

al,

and

user

com

mun

ities

(ong

oing

)D

evel

op d

raft

stan

dard

and

pub

lish

draf

t sta

ndar

d fo

r pub

lic c

omm

ent

(Aug

ust 2

006)

Form

al, p

ublic

com

mitt

ee m

eetin

g to

ad

dres

s al

l com

men

ts (e

st. l

ate

2006

)Pu

blis

h st

anda

rd (e

st. m

id 2

007)

Page 72: ICC/NSSA Storm Shelter Standard · 2018. 9. 7. · ICC/NSSA Storm Shelter Standard: Draft Structural Provisions of the Standard for Design and Construction of Storm Shelters (IS-STM)

Que

stio

ns ?

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