ETABS

ETABS

Bi tp 6Bi tp 6INSERTION POINT

Assign menu Frame/Line Insertion Point

ETABS

ETABS

Bi tp 6Bi tp 6INSERTION POINT

V tr at tai trong len Linec ETABS da vao chieudai va v tr cua Line sau khicac nut a c di (offset)bi lenh Insertion Point.

ETABS

ETABS

Bi tp 6Bi tp 6INSERTION POINT

S o 3: truc cot va dam eulech so vi Grid lines theoung kien truc.Co ke en sthay oi o cng.

S o 4: truc cot va dam eulech so vi Grid lines theo ungkien truc. Khong ke en sthay oi o cng.

S o 1: truc cot trung vi Grid lines,truc dam trung vi Grid lines nhngmat tren dam trung vi mat tren san(mac nh cua ETABS)

S o 2: truc cot trung vi Grid lines, trucdam trung vi Grid lines va truc doc damnam trong mat phang trung bnh cua santrung truc san (mac nh cua nhieu phanmem, ke ca SAP2000)

V DU 6ATiet dien dam va cot eula 200x400, san day120mm

ETABS

ETABS

Bi tp 6Bi tp 6INSERTION POINT *Dam 200x400

*Cot bien : 200x450 (tang 1&2), 200x400(tang 3&4), 200x300 (tang 5&6) *Cot gi a : 250x500 (tang 1&2), 250x400(tang 3&4), 200x300 (tang 5&6)

V DU 6B

Khong lech truc Lech truc + thay oi o cngLech truc +khong thay oi o cng

ETABS

ETABS

* Lam lai v du6B, nh ng khong cho cot thay oi tiet dien. Van dungInsertion Point edi iem chen cho truc cot khong trung vi truc nh v(Grid Line).

*Theo t duy ket cau th se khong comoment do lech truc cot {v ca6 tangeu cocung tiet dien cot}. Nh ng moment phan l c goi van bat th ng bien phap khac phuc khi thiet ke?

Bi tp 6Bi tp 6INSERTION POINT

V DU 6C

* Tai trong phan bo eu tren dam = 2 T/m. * Tai trong tap trung tai nut khung la 6 T cho cot bien va 8 T cho cot gia. * Xet 3 phng an mo hnh truc dam, cot khac nhau so sanh ket qua noi lc san, noi lc dam va cot, phan lc goi.