stepeniste1podelaikonstrukcija
TRANSCRIPT
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PREMA POLOŢAJU:
-SPOLJAŠNJE I UNUTRAŠNJE
PREMA ZNAČAJU:
-GLAVNE
-POMOĆNE
-INTERNE
-POŢARNE
...
PREMA BROJU KRAKOVA:
-JEDNOKRAKE
-DVOKRAKE
-VIŠEKRAKE
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PREMA OBLIKU:
-PRAVE
-POLUKRUŢNE
-KRUŢNE
-ELIPTIČNE
-SLOBODNO OBLIKOVANE
PREMA MATERIJALU:
-BETONSKE
-DRVENE
-METALNE
-KAMENE
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Udaljenost 30m Osvetljenost Nesagoriv materijal Korisna širina kraka min. 1,15m
/0,90m podrum-max nagib 45°/ Min dimenzija podesta 1,20m Odmorište 2h+b=61-63 cm Čista visina prolaza h=2,10m Visina ograde 1,10m /širina je ~ 5cma meĎuprostor 10 cm Min b/h je 18/28cm Ne projektuje se manji broj stepenika od 3 Kruţno stepenište u dupleksima
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Lp=nx63+b
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Spratna visina
H=290cm
Dvokrako stepenište
1. Pretpostavimo visinu stepenika h=17cm
n-broj stepenika
h-visina stepenika
b-širina gazišta
2. n=H/h (290:17=17,1 cm) broj penjanja
3. Pošto je dvokrako stepenište⇒ n=2x9=18 stepenika
Utvrdili smo broj penjanja
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1. h=H/n (290:18=16,10cm)
Ne zaokruţivati⇒
2xh+b=63 ⋎ b=63-2x16,10=30,8cm
Usv. b=31cm
Utvrdili smo širinu gazišta
h/b=16,10/31cm
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Lk=b x (n/2-1)
Lk=31(18/2-1)=248cm
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NALEŢUĆE
-celom svojom duţinom
naleţu na podlogu ili
bočne zidove
KOSOM AB PLOČOM
-izmeĎu podesnih greda
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SA OBRAZNIM
NOSAČIMA
-izmeĎu podesnihgreda
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-izmeĎu podesnih greda sa obraznim nosačima
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PO KOLENASTOJ AB PLOČI
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-oslanjanje po kolenastojAB ploči
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MONTAŢNE
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KONZOLNE
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