《风荷载作用下的内力探析综述》

风荷载作用下的内力分析综述1.1风荷载计算风荷载标准值计算公式：ωk=βzμsμ已知条件：基本风压ω0=0.45kN/m2，地面粗糙度为C类，室内外高差0.45m，建筑高宽比H/B=23.4÷19.4=1.21<分布风荷载标准值公式为q(x)=0.45×8.5βzμzus。迎风面宽度：8.5m，h：上下层的平均高度，汇总其计算结果成表6-1，表STYLEREF1\s6SEQ表\*ARABIC\s11集中风荷载标准值层次Hi/mμβω0/(kN/m2)q1(x)/(kN/m)q2(x)/(kN/m)h/mFi/kN623.850.90161.00.452.761.721.958.736519.950.8392.571.603.911.263411.050.7612.331.463.914.781312.150.742.261.423.914.35228.250.742.261.423.914.35214.350.742.261.424.12515.181.2风荷载作用下水平位移验算层间剪力计算公式：Vi=Fi，然后计算层间侧移刚度，各层层间侧移与绝对侧移计算公式：表STYLEREF1\s6SEQ表\*ARABIC\s12层间剪力和侧移计算层次FVD∆uh/mmθ68.7368.736817680.110.1139002.82×10-5511.26324.999817680.300.4139001.05×10-4414.78139.78817680.490.9039002.31×10-4314.35254.132817680.661.5639004×10-4214.35268.484817680.842.4039001.22×10-4115.1883.664576001.453.8539009.9×10-4取最大值9.9×10-4<1.818×101.3风荷载作用下的内力计算计算过程以及结果详见下表6-3。表STYLEREF1\s6SEQ表\*ARABIC\s13各层边柱端弯矩（kNm）与剪力（kN）值层次ℎVDDijVA、D轴边柱mKNN/mmN/mmkNKyMM63.98.73681768199022.132.780.4394.663.6553.924.99981768199021.082.780.4513.0410.6743.939.7881768199029.682.780.48919.2918.4633.954.132817681990213.182.780.525.7025.7023.968.484817681990211.672.780.532.5132.5115.783.664576001412120.511.960.55452.1464.77表STYLEREF1\s6SEQ表\*ARABIC\s14各层中柱端弯矩（kNm）与剪力（kN）值层次ℎVDDijVB、C轴中柱mKNN/mmN/mmkNKyMM63.98.73681768185831.993.160.454.273.4953.924.99981768185835.683.160.45812.0110.1443.939.7881768185839.043.160.517.6317.6333.954.132817681858312.303.160.523.9923.9823.968.484817681858315.563.160.530.3430.3415.783.664576001345519.542.240.5550.1261.26表STYLEREF1\s6SEQ表\*ARABIC\s15梁端弯矩值（单位kN·m）层次DC跨梁CB跨梁BA跨梁左端右端左端右端左端右端64.66-3.740.53-0.533.74-4.66511.69-13.591.91-1.9113.59-11.69429.96-24.353.42-3.4224.35-29.96344.16-31.505.12-5.1231.50-44.16258.21-47.641.68-1.6847.64-58.21184.65-70.569.90-9.9070.56-84.65表STYLEREF1\s6SEQ表\*ARABIC\s16梁端剪力以及柱轴力值汇总（单位kN）层次梁剪力柱轴力DC跨梁CB跨梁BA跨梁D轴C轴B轴A轴60.990.440.99-0.990.55-0.550.9953.561.593.56-4.552.52-2.524.5541.392.851.39-10.941.06-1.0610.9439.494.279.49-20.4311.28-11.2820.43212.455.5712.45-32.8818.16-18.1632.88118.268.2518.26-51.1428.17-28.1751.141.4风荷载作用下的内力图（左风）图STYLEREF1\s6SEQ图\*ARABIC\s11框架弯矩图（单