MorGain
1 双向板: B-1
1.1 基本资料
1.1.1 工程名称: 工程一
1.1.2 边界条件(左端/下端/右端/上端): 固端 / 固端 / 固端 / 固端
1.1.3 荷载标准值
1.1.3.1 永久荷载标准值
均布荷载: gk1 = 3.1kN/m?
1.1.3.2 可变荷载标准值
均布荷载: qk1 = 2kN/m?,γQ = 1.4,ψc = 0.7,ψq = 0.4
1.1.4 荷载的基本组合值
1.1.4.1 板面 Q = Max{Q(L), Q(D)} = Max{6.52, 6.14} = 6.52kN/m?
1.1.5 计算跨度 Lx = 3000mm,计算跨度 Ly = 3300mm,板的厚度 h = 80mm (h = Lx / 38)
1.1.6 混凝土强度等级为 C20, fc = 9.554N/mm?, ft = 1.101N/mm?, ftk = 1.542N/mm?
1.1.7 钢筋强度设计值 fy = 210N/mm?, Es = 210000N/mm?; 当纵筋直径不小于 12mm 时,
取 fy = 300N/mm?、Es = 200000N/mm?
1.1.8 纵筋的混凝土保护层厚度: 板底 c = 20mm、板面 c' = 20mm
1.2 配筋计算
1.2.1 平行于 Lx 方向的跨中弯矩 Mx
Mxk = 1.15kN·m,Mxq = 0.88kN·m;
Mx = Max{Mx(L), Mx(D)} = Max{1.47, 1.38} = 1.47kN·m
Asx = 128mm?,as = 24mm,ξ = 0.050,ρ = 0.23%; ρmin = 0.24%,
As,min = 189mm?; 实配纵筋: φ8@200 (As = 251)
1.2.2 平行于 Ly 方向的跨中弯矩 My
Myk = 0.96kN·m,Myq = 0.74kN·m;
My = Max{My(L), My(D)} = Max{1.23, 1.16} = 1.23kN·m
Asy = 131mm?,as = 34mm,ξ = 0.063,ρ = 0.29%; ρmin = 0.24%,
As,min = 189mm?; 实配纵筋: φ8@200 (As = 251)
1.2.3 沿 Lx 方向的支座弯矩 Mx'
Mx'k = -2.67kN·m,Mx'q = -2.04kN·m;
Mx' = Max{Mx'(L), Mx'(D)} = Max{-3.41, -3.21} = -3.41kN·m
Asx' = 309mm?,as' = 24mm,ξ = 0.121,ρ = 0.55%;
实配纵筋: φ8@150 (As = 335)
1.2.4 沿 Ly 方向的支座弯矩 My'
My'k = -2.47kN·m,My'q = -1.89kN·m;
My' = Max{My'(L), My'(D)} = Max{-3.16, -2.98} = -3.16kN·m
Asy' = 285mm?,as' = 24mm,ξ = 0.112,ρ = 0.51%;
实配纵筋: φ8@150 (As = 335)
1.3 跨中挠度验算: 挠度 f = 4.3mm,f / Lx = 1/693
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【MorGain 结构快速设计程序 V2006.11.1608.1613】 Date:2006-11-21 16:05:38
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