SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
V d: Tnh ni lc cho sn BTCT. Tit din ct 30x30 cm, tit din dm
25x40 cm, sn 10 cm. B tng B20, E = 2.7x107 kN/m2, = 25kN/m3, = 0.2.
Tnh ti phn b u trn sn 1.5 kN/m2, hot ti phn b u trn sn 2.4 kN/m2.
Ct cao 3.2 m. Ti truyn ln dm 5 kN/m
1- Khi ng SAFE 12.2 Kch p biu tng 2- ng hp thoi sau trn mn hnh
nn Windows
3- To file mi: File/New Model, 1 mn hnh xut hin - Chn n v kN-m -
Mc Units: Chn Metric Default - Chn Design Code: BS 8110-97 - Design
Preference: Sa Gamma Steel: 1.05 - Chn m hnh Grid Only
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
Hiu chnh khong cch gia cc ng li theo kiu Spacing Hiu chnh chiu
cao tng : Storey Height Below
4- Tt li: Chn Set display option, b chn Horizon
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
5- nh ngha vt liu: Thit k theo tiu chun VN, quy i t BS B TNG:
B20 (M250) fcu = 11.5*1.5/60 =25.746 MPa THP AII: fy = Rs * 1.05 =
280*1.05 = 294 Mpa fu = 400 MPa
AI fy = 225*1.05 = 236.25
Fu = 300 Mpa
6- nh ngha tit din NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL A Sn: B Stiff : Chiu dy = 5*chiu dy sn
THIT K SN BNG SAFE 12.2
C Dm: Thp AII, Thp ai AI, chiu cao lp b tng bo v a = 5mm
D Ct (Chn Include Automatic Rigid Zone Area Over Column)
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
7- Khai bo cc trng hp ti
Xem Load Case (i vi ngnh xy dng, chn phn tch tuyn tnh)
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL T hp ti trng: 1 t hp
THIT K SN BNG SAFE 12.2
8 M hnh V STIFF trng ct
M hnh thu c
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
9 Khai bo ti trng: i) Ti trng truyn ln sn: a) Tnh ti: Chn sn/
Assign/ Load data/ Surface load
b) Hot ti: Chn li sn/ Assign/ Load data/ Surface load
ii)
Ti trng truyn ln dm: Chn dm D25x60 bng lnh Select / Properties /
Beam Properties/ D25x60
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
11- MESH LI Chn tt c (all)
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
Hin th li mesh
12 nh ngha thp thit k cho sn Chn sn / Design / Slab design
overwrite / Finite Element Based Phi 10: Lp ngoi
NGUYN PHM QUANG V - HCMUT
SAFE TUTORIAL
THIT K SN BNG SAFE 12.2
i)
Thp: D6 d8: AI, d10:AII Ban u cha bit d = ?, chn AI lun
ii) Lp b tng bo v tnh n tm ct thp (a) - Kinh nghim thi cng: Cng
nhn thng t lp trn lp di khc thit k nu c 2 lp b tng bo v khc nhau.
Do tin li trong thi cng, cho 2 lp b tng bo v bng nhau - Nu thit k
thp d10 l ln nht, chn a = 25 l ok, thin v an ton . - i vi lp thp
pha trn: a =15 + d/2
