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2011

KS. L V N DUY 10/15/2011

M HNH V THI T K NH CAO T NG S D NG ETABS

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MHNHVTHI T K NH CAO T NG S D NG ETABS BINSO N :KS.L V N DUY L I NI U Ngy nay h u h t k s k t c u s d ng my tnh thi t k cng trnh.Ch ng trnh

thi t k nh cao t ng n i ti ng nh t l Etabs.Ti li u h ng d n ny d a trn phin b n Etabs v9.7.0.Ti li u h ng d n m hnh v thi t k chi ti t cng trnh 32 t ng v gi i thch y nh ng ch quan tr ng (nh thi t k v phn tch ng , k n t i tr ng

ng t v gi ng ). Ti li u ch tr ng vi c v n d ng tiu chu n TCVN vo ch ng trnh Etabs v t ng

b c h ng d n pht tri n m hnh m t cch nhanh chng v d dng nh t. Ngoi ra ti s h ng d n ph ng th c ch ng trnh truy n t i c s d li u sang cc

gi ph n m m khc.

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M C L C CH NG 2. M HNH & PHN TCH. ........................................................................ 3

2.1. B T U M T M HNH. ................................................................................ 4 2.1.1. M ch ngtrnh. ........................................................................................... 4 2.1.2. Ch n nv .................................................................................................... 4

n v gc o dngtrongSAP2000. ................................................................ 5 2.1.3. Click Menu File New Model ................................................................... 5 2.1.4. i u ch nh thng s l i ................................................................................. 6 2.1.5. L umhnh ................................................................................................... 9

2.2. NH NGH A TIU CHU N S D NG TRONG CH NGTRNH: .......... 10 2.2.1. nh ngh a tiu chu n thi t k cho ph n t Frame : ..................................... 10

2.3. NH NGH A V T LI U V TI T DI N. ...................................................... 11 2.3.1. nh ngh a v t li u. ....................................................................................... 11 2.3.2. nh ngh a ti t di n (vch,c t,d m,sn) ....................................................... 13

a) nh ngh a ti t di n vch. ............................................................................... 13 b) nh ngh a ti t di n d m. ............................................................................... 15 c) nh ngh a ti t di n c t ................................................................................... 18

2.4. V CC I T NG ........................................................................................ 20 2.4.1. V sn, v d m : ............................................................................................ 20 2.4.2. Gn ti t di n .................................................................................................. 24 2.4.3. Replicate of the story. ................................................................................... 26 2.4.4. V c t ............................................................................................................ 27 2.4.5. V d m. ......................................................................................................... 28

2.5. CHIA SN V GN ID CHO DIAPHRAGM. ................................................. 29 2.5.1. Chia sn. ........................................................................................................ 29 2.5.2. Chia vch. ..................................................................................................... 30 2.5.3. Chia sn. ........................................................................................................ 32 2.5.4. Gn Diaphragm ............................................................................................. 34

2.6. NH NGH A TR NG H P T I TR NG V GN T I TR NG. ........... 35 2.6.1. nh ngh a t i tr ng ng t. ...................................................................... 35 2.6.2. nh ngh a t i tr ng gi. ............................................................................... 39 2.6.3. nh ngh a t h p t i tr ng : ......................................................................... 40 2.6.4. Gn t nh t i v ho t t i : ................................................................................ 41

2.7. GN TN PIER V SPANDREL ...................................................................... 42 2.7.1. Gn tn Pier cho vch : ................................................................................. 42 2.7.2. Gn tn cho Spandrel: ................................................................................... 43

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2.8. NH NGH A MASS SOURCE & AUTO LINE CONSTRAIN & GN LIN K T. .............................................................................................................................. 45

2.8.1. Gn Auto Line Constrain. ............................................................................. 45 2.8.2. nh ngh a Mass Source: .............................................................................. 45 2.8.3. Gn lin k t Support : ................................................................................... 48

2.9. KI M TRA M HNH V CH Y PHN TCH. ............................................. 49 CH NG 3. HI N TH K T QU . .............................................................................. 51

3.1. HI N TH K T QU D NG B NG. ................................................................ 51 3.1.1. B ng tm t t. ................................................................................................. 51 3.1.2. Hi n th d ng h a. .................................................................................... 53

3.2. HI N TH H A K T QU PHN TCH. .................................................. 56 3.2.1. Ph n l c (Reaction)....................................................................................... 56 3.2.2. N i l c c a d m v c t : ............................................................................... 58 3.2.3. Hi n th n i l c cho vch s Spandrel. ......................................................... 65

CH NG 4. THI T K B TNG C T THP. .......................................................... 68 4.1. Thi t k Frame (D m v c t) ............................................................................... 68

4.1.1. i u ch nh tiu chu n thi t k v d li u thi t k . ....................................... 68 4.1.2. Ch n t h p thi t k . ..................................................................................... 68 4.1.3. B t u thi t k . ............................................................................................ 69 4.1.4. Hi n th thng tin thi t k d m. .................................................................... 72

4.2. Thi t k vch ........................................................................................................ 77 4.2.1. i u ch nh tiu chu n thi t k v d li u thi t k . ....................................... 77 4.2.2. Ch n t h p t i tr ng. ................................................................................... 79 4.2.3. L a ch n ph ngphpthi t k . .................................................................. 80

CH NG 5. THI T K K T C U THP. ................................................................... 81 5.1. Thi t k thp : ...................................................................................................... 81

5.1.1. i u ch nh tiu chu n thi t k v d li u thi t k . ...................................... 81 5.1.2. nh ngh a danh sch t ng ch n ti t di n (Auto Select Section). ........... 81

CH NG 6. THI T K D M LIN H P. ................................................................... 84 CH NG 7. PHN TCH P- . ...................................................................................... 85 CH NG 8. PHN TCH NG (DYNAMIC ANALYSIS)...................................... 86 CH NG 9. PHN TCH K N CC GIAI O N THI CNG ( SEQUENTIAL

CONSTRUCTION)........................................................................................................... 87 CH NG 10. SECTION DESIGNER. ....................................................................... 88 CH NG 11. MESHING. ........................................................................................... 89

11.1. Chia th cng ..................................................................................................... 89 11.2. Chia t ng ....................................................................................................... 89

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11.3. Chia sn b ng cc ch ng trnh chuyn d ng ................................................... 90 CH NG 12. ETABS V NH NG CH NG TRNH KHC. .............................. 91

12.1. Etabs v Safe. ..................................................................................................... 91 12.1.1. Xu t n i l c chn c t, chn vch sang Safe. .............................................. 91 12.1.2. Xu t m t b ng sang Safe. ........................................................................... 93

12.2. Etabs v Sap. ...................................................................................................... 97 12.3. Etabs v Word. ................................................................................................... 99 12.4. Etabs v Excel. ................................................................................................... 99 12.5. Etabs v AutoCAD .......................................................................................... 100

CH NG 13. NH NG CH QUAN TR NG .................................................... 101 13.1. B T U M T M HNH M I. .................................................................. 101 13.2. Auto Line Constrains ....................................................................................... 102 13.3. M t c t nng cao .............................................................................................. 103 13.4. TI LI U THAM KH O ............................................................................... 106

CH NG 2. M HNHM hnh m u. Trong v d ny chng ta s xy d

trnh 32 t ng. T ng b c xy d ng m hnh s

Hnh 2-1 M hnh cng trnh 32 t ng.

D N V D : Cng trnh 32 t ng 2 t ng h m. T ng h m 2 cao 3.3m ,t ng H th ng ch u t i tr ng ngang

vch c ng . M t b ng c a cng trnh nh

H & PHN TCH. d ng m hnh nh trong hnh Hnh 2-1 M hnh

c gi i thi u v gi i thch c n k .

m. i n hnh cao 3.3m

ngang bao g m 4 li thang my,4 vch c ng ch Hnh 2-2 M t b ng cng trnh t ng i n hnh.

hnh cng

L v 4 hnh.

Hnh 2-2 M t b ng cng trnh t ng i n hnh.

2.1. B T UM TMHNH.Trong b c ny thi t l p kch th c m t b ng v chi u cao t ng : 2.1.1. M ch ngtrnh.2.1.2. Ch n nv gc ph i bn d i c a s Etabs.Khuy n co s d ng nv kN-m.

C 2 h n v trong ETABS : English v Metric.M t h n v bao g m n v l c,chi u di,nhi t v th i gian.

L c (lbs, kip, N, kN, etc.), Chi u di (ft, in, m, mm, etc.), Th i gian (second), Nhi t (F, C)

nv gc o dngtrongSAP2000.

G m (o) v radian : (o) c s d ng ch nh thng s hnh h c ch ng h n nh gc c a tr c a

ph ng. Radian dng ch nh gc xoay c a chuy n v . K t qu gc xoay xu t ra s d ng n v radian. B n c th thay i n v hi n t i b t k lc no b ng cch click h p x xu ng bn ph i thanh tr ng thi.

2.1.3. ClickMenuFileNewModelHo c Click vo Icon xu t hi n c a s sau :

Hnh 2-3 C a s New Model Initialization.

Ch : Ch n No v m hnh u tin chng ta s t xy d ng, trong cc ch ng sau s th o lu n s d ng 2 l a ch n cn l i.

2.1.4. i u ch nh thng s l iC a s Building Plan Grid System.. xu t hi n.

Hnh 2-4 C a s Building Plan Grid System and Story Data Definition

Ch : Chi u cao t ng d i cng ph i c ng thm chi u cao t c t m t mng n c t 0.000

Grid Dimensions (Plan) Number Lines in X Direction = 11 Number Lines in Y Direction = 7 Spacing in X Direction = 3.5 Spacing in Y Direction =3.5 Story Dimensions Number of Stories =32 Typical Story Height =3.3 Bottom Story Height =3.3

B n c th thay i chi u cao t ng b ng cch click vo Custom Story Data sau click vo Edit Story Data xu t hi n form sau :

Hnh 2-5 C a s Story Data

Click Ok ! B n c th thay i kho ng cch l i b ng cch click vo Custom Grid Spacing

Ch n Grid Label s a tn l i