钢楼梯计算

一、材料选择：1、平台板面积A(CM2)单位重量（KG/M)截面特性W(CM3)花纹钢板3.0030.0023.551.502、踏步单位重量（KG/M)截面特性W(CM3)Z270X158.3X317.4313.683.503、楼梯梁单位重量（KG/M)截面特性W(CM3)槽钢20a28.8022.60100.000.0022a31.8025.00218.001.60钢板25.0019.63104.170.00250.0010.004、板下分隔构件面积A(CM2)单位重量（KG/M)截面特性W(CM3)L100X104.803.7710.000.60钢楼梯计算程序：（简图如右）注意：1、L1中支撑构件间距L2中2、面层装饰按0.5KN/M2考虑3、栏杆线荷载1.0KN/M槽钢12.7010.0039.700.0010a二、几何条件：L1L2L3HLnmn输入：2.463.241.522.101.503.003.00三、荷载统计：板下分隔构件平台板踏步板楼梯梁(L1/m*C12+C28*E28+C30*E30)/100C12C16((C12*Ln*(L1+L3)/2/(L1+L2+L3)+(ZS*E28*C28+ZS*E30*C31)*Ln/2+(n+1)*C16*Ln/2)/(L1+L2+L3)+C20*E20+C22*E22)/1001、恒载0.630.740.281.932、活载2.873.500.982.633.503、荷载4.775.781.705.990.00四、验算2.00正应力正应力正应力正应力8.8s223.54324.02136.94111.90剪应力剪应力剪应力剪应力端剪力10.9s12.420.790.734.2520.55挠度(Vt)挠度(Vt)挠度(Vt)挠度(Vt)7.6855.413.9521.006.005.476.0028.88应力验算：0.000.001.001.001满足要求挠度(Vq)挠度(Vq)挠度(Vq)平台板L/150,余L/2500不满足要求6.313.0812.105.004.2924.07挠度验算：0.001.001.001满足要求0不满足要求构件选择几何条件中间结果选择标志规范要求验算结果注意事项L/300ZS6.00((C12*Ln*(L1+L3)/2/(L1+L2+L3)+(ZS*E28*C28+ZS*E30*C31)*Ln/2+(n+1)*C16*Ln/2)/(L1+L2+L3)+C20*E20+C22*E22)/10016.0020.0022.0024.0037.5045.0030.0046.5057.00螺栓承载力参考