Evaluarea incarcarilor:
Straturi terasa necirculabila:
Evaluarea incarcarii/mp terasa:
Strat |
[daN/m2] |
c |
[daN/m2] |
Pietris de protectie 0,03x1800 | |||
Hidroizolatie 1P+2C+5B |
8.1 959i87j |
||
Strat difuzie IBP 1200 | |||
Sapa suport protectie 0,015x2200 | |||
Termoizolatie polistiren 5 cm | |||
Sapa suport 0,015x2200 | |||
Bariera de vapori 1 CA 400 | |||
Strat de difuzie IBP 1200 | |||
Beton de panta 0,12x2100 | |||
Total |
Evaluarea incarcarii/mp pardoseala rece:
Strat |
[daN/m2] |
c |
[daN/m2] |
Pardoseala mozaic 0,015x2400 | |||
Sapa suport+egalizare 0,035x2100 | |||
Total |
Evaluarea incarcarii/mp pardoseala calda:
Strat |
[daN/m2] |
c |
[daN/m2] |
Pardoseala PVC 0.003 | |||
Sapa suport+egalizare 0,05x2200 | |||
Total |
II Predimensionare:
2.1. GRUPAREA FUNDAMENTALA
2.1.1. Planseu terasa:
Incarcari |
[daN/m2] |
c |
[daN/m2] |
|
Perm. |
Greutate proprie planseu 0,14x2500 | |||
Greutate tencuiala 0,02x2200 | ||||
Straturi terasa | ||||
Total (inc. perm.) | ||||
Util |
100kg | |||
Zap |
240kg | |||
Total |
Incarcarea din zapada
-valoarea caracteristica a incarcarii din zapada pe sol:Sok=2.00KN/m^2
-valoarea caracteristica a incarcarii din zapada pe acoperis ,Sk este:
Sk=μi*ce*ct*Sok
μi-coeficient de forma pentru incarcarea din zapada pe acoperis,in functie de forma
acoperisului.
μi=1.00
ce-coeficient de expunere al amplasamentului constructiei .
ce=1.20-expunere redusa.
ct=coefficient termic.
ct=1.00-acoperis izolat.
Sk=1.00*1.20*1.00*2.00=2.40KN/m^2
2.1.2. Planseu curent:
Incarcari |
[daN/m2] |
c |
[daN/m2] |
|
Perm. |
Greutate proprie planseu 0,14x2500 | |||
Greutate tencuiala 0,02x2200 | ||||
Greutate pardoseala | ||||
Greutate pereti despartitori | ||||
Total (inc. perm.) | ||||
Util |
250kg | |||
Total |
2.1.3. Grinzi:
Dimensiuni grinda: 0.30x0.60 |
[daN/m] |
c |
[daN/m] |
0.30x0.60x2500 |
2.2. Incarcari stalpi - gruparea fundamentala:
2.2.1. Incarcarea din acoperis:
Stalp de colt S
Element |
Incarcare [daN] |
Incarcare permanenta: 9.00m2x1059daN/m2 | |
Incarcare utila: 9.00m2x150daN/m2 | |
Gr. grinzi: (3.00+3.00)mx495daN/m | |
Gr. atic: 0.10x1.00x6.00x2500 | |
Zapada:9.00x240 daN/m2 | |
Total |
Stalp de margine S
Element |
Incarcare [daN] |
Incarcare permanenta: 18.00m2x1059daN/m2 | |
Incarcare utila: 18.00m2x150daN/m2 | |
Gr. grinzi: (6.00+3.00)mx495daN/m | |
Gr. atic:0.10x1.00x6.00x2500 | |
Zapada:18.00x240 daN/m2 | |
Total |
Stalp central S
Element |
Incarcare [daN] |
Incarcare permanenta: 36.00m2x1059daN/m2 | |
Incarcare utila: 36.00m2x150daN/m2 | |
Gr. grinzi: 2x(3.00+3.00)mx495daN/m | |
Zapada:36.00x240 daN/m2 | |
Total |
2.2.2. Incarcarea din planseul curent:
Stalp de colt S
Element |
Incarcare [daN] |
Incarcare permanenta: 9.00m2x705daN/m2 | |
Incarcare utila: 9.00m2x375daN/m2 | |
Gr. grinzi: (3.00+3.00)mx495daN/m | |
Gr. pr. stalpi: 0.50x0.50x3.50x2500 | |
Gr. inchideri: 0.30x3.50x6.00x800 | |
Total |
Stalp de margine S
Element |
Incarcare [daN] |
Incarcare permanenta: 18.00m2x705daN/m2 | |
Incarcare utila: 18.00m2x375daN/m2 | |
Gr. grinzi: (6.00+3.00)mx495daN/m | |
Gr. pr. stalpi: 0.50x0.50x3.50x2500 | |
Gr. inchideri: 0.30x3.50x6.00x800 | |
Total |
Stalp central S
Element |
Incarcare [daN] |
Incarcare permanenta: 36.00m2x705daN/m2 | |
Incarcare utila: 36.00m2x375daN/m2 | |
Gr. grinzi: 2x(3.00+3.00)mx495daN/m | |
Gr. pr. stalpi: 0.65x0.65x3.50x2500 | |
Total |
SCHEMA DE EFORTURI IN STALPI - GRUPAREA FUNDAMENTALA
2.3. Verificare sectiuni talpi - gruparea fundamentala:
Stalp de colt S - sectiune 55x55:
Ab≥Ng/α*Rc α=0.3
Ab≥1375*1000/0.3*15.5=2956.98cm^2
Verificare: Ng/b*ho*Rc=1375*1000/550*525*15.5=0.307<0.4
Propun stalpi de colt cu dimensiunile sectiunii transversale de 55x55.Ab=3025cm^2
Stalp de margine S - sectiune 65x65:
Ab≥Ng/α*Rc α=0.35
Ab≥2072*1000/0.35*15.5=3819.35cm^2
Verificare: Ng/b*ho*Rc=2072*1000/650*625*15.5=0.329<0.4
Propun stalpi marginali cu dimensiunile sectiunii transversale de 65x65.Ab=4225cm^2
Stalp central S - sectiune 80x80:
Ab≥Ng/α*Rc α=0.4
Ab≥3497*1000/0.4*15.5=5640.32cm^2
Verificare: Ng/b*ho*Rc=3497*1000/800*775*15.5=0.364<0.4
Propun stalpi centrali cu dimensiunile sectiunii transversale de 80x80.Ab=6400cm^2
Predimensionarea placi.
hp=U/180+1.2
hp=600*4/180+1.2=13.32+1.2 Propun hp=14 cm
Predimensionarea grinzilor.
h grinda=L grinda/8.10 h grinda=60/8.10=60.75 aleg hg=60cm
b grinda=h grinda/2.3 b grinda=60/2.3=20.30 aleg bg=30cm
Predimensionarea peretilor.
Aria totala a inimii peretilor:
ΣAbi≥α*ks*n*Apl/120
α=coefficient de importanta,
ks=coeficientul zonei seismice,
n=numarul de etaje,
Apl=aria planseului,
α=1
ks=ag/g=0.24*g/g=0.24
n=6
Apl=43.1*43.1=1857.61m^2
ΣAbi≥1*0.24*6*1875.61/120=22.5m^2
ΣLpereti transversali=64.2m → b=0.35m
ΣLpereti longitudinali=69.55m → b=0.35m
2.4. Incarcari gravitationale - cadru:
A=4*(3*3/2)=18 m2
2.4.1. Incarcari permanente - gruparea fundamentala
Element |
[daN/m] |
Terasa: 18m2x1059daN/m2/6m | |
Grinda: 495daN/m | |
Zapada: 18m2x360daN/m2/6m | |
Total |
Element |
[daN/m] |
Planseu:18m2x705daN/m2/6m | |
Grinda: 495daN/m | |
Total |
2.4.2. Incarcari utile - gruparea fundamentala
Element |
[daN/m] |
Terasa: 18m2x150daN/m2/6m | |
Total |
Element |
[daN/m] |
Planseu: 18m2x375daN/m2/6m | |
Total |
2.4.3. Schema incarcari cadru - gruparea fundamentala:
|