【《某5层办公楼结构的截面设计和配筋计算过程案例》9900字】

某5层办公楼结构的截面设计和配筋计算过程案例目录TOC\o"1-3"\h\u28700某5层办公楼结构的截面设计和配筋计算过程案例 .2.2柱斜截面配筋计算利用“强剪弱弯”调整过的剪力进行框架梁斜截面配筋计算时，并考虑地震作用的影响，抗剪承载力调整系数γRE=0.85。柱截面尺寸验算：首先计算剪跨比：当剪跨比大于2时，根据《混凝土结构设计规范》GB50010-2010中11.4.6条其受剪截面应符合下列条件：当剪跨比不大于2时：斜截面承载力计算：剪跨比λ大于3.0时，取3.0；小于1.0时，取1.0。当V>Vc时，则需要进行计算配筋，否则构造配筋即可。箍筋选配：箍筋的最小直径为8mm。箍筋加密区的最大间距=Min{8d，150}，其中d是柱纵筋最小直径。箍筋加密区长度=Max{h，Hn/6，500}，其中h截面高度，Hn则是柱的净高。体积配箍率验算：最小体积配箍率应满足：体积配箍率按下式计算：表1.5柱斜截面配筋计算层数项目A柱B柱C柱D柱5M(kN·m)93.3797.4197.4193.37N(kN)229.68257.10257.10229.68V(kN)62.6766.8266.8262.67βc1.01.01.01.0ft(N/mm2)1.431.431.431.43fc(N/mm2)14.314.314.314.3b(mm)500500500500h(mm)500500500500保护层厚度(mm)40404040fyv(N/mm2)300300300300λ=M/(Vh0)3.243.173.173.240.2/0.15βcfcbh0657800657800657800657800验算截面尺寸满足满足满足满足实取λ3.003.003.003.000.3fcA1072.501072.501072.501072.50N实际取值(kN)270.22302.47302.47270.22Vc(kN)101.47103.27103.27101.47是否按计算配筋否否否否Asv/s按构造配筋按构造配筋按构造配筋按构造配筋箍筋直径10101010加密区配筋4B104B104B104B10加密区间距100100100100加密区长度500500500500非加密区配筋4B104B104B104B10非加密区间距200200200200加密区体积配箍率%1.651.651.651.65非加密区体积配箍率%0.820.820.820.82λv0.0900.0900.0900.090最小体积配箍率%0.4290.4290.4290.429层数项目A柱B柱C柱D柱4M(kN·m)105.09121.68121.68105.09N(kN)584.39653.61653.61584.39V(kN)76.6689.6189.6176.66βc1.01.01.01.0ft(N/mm2)1.431.431.431.43fc(N/mm2)14.314.314.314.3b(mm)500500500500h(mm)500500500500保护层厚度(mm)40404040fyv(N/mm2)300300300300λ=M/(Vh0)2.982.952.952.980.2/0.15βcfcbh0657800657800657800657800验算截面尺寸满足满足满足满足实取λ2.982.952.952.980.3fcA1072.501072.501072.501072.50N实际取值(kN)687.52761.95761.95687.52Vc(kN)125.27130.45130.45125.27是否按计算配筋否否否否Asv/s按构造配筋按构造配筋按构造配筋按构造配筋箍筋直径10101010加密区配筋4B104B104B104B10加密区间距100100100100加密区长度500500500500非加密区配筋4B104B104B104B10非加密区间距200200200200加密区体积配箍率%1.651.651.651.65非加密区体积配箍率%0.820.820.820.82λv0.0900.0900.0900.090最小体积配箍率%0.4290.4290.4290.429层数项目A柱B柱C柱D柱3M(kN·m)117.59137.15137.15117.59N(kN)931.791031.651031.65931.79V(kN)89.70107.25107.2589.70βc1.01.01.01.0ft(N/mm2)1.431.431.431.43fc(N/mm2)14.314.314.314.3b(mm)500500500500h(mm)500500500500保护层厚度(mm)40404040fyv(N/mm2)300300300300λ=M/(Vh0)2.852.782.782.850.2/0.15βcfcbh0657800657800657800657800验算截面尺寸满足满足满足满足实取λ2.852.782.782.850.3fcA1072.501072.501072.501072.50N实际取值(kN)1072.501072.501072.501072.50Vc(kN)149.77151.42151.42149.77是否按计算配筋否否否否Asv/s按构造配筋按构造配筋按构造配筋按构造配筋箍筋直径10101010加密区配筋4B104B104B104B10加密区间距100100100100加密区长度500500500500非加密区配筋4B104B104B104B10非加密区间距200200200200加密区体积配箍率%1.651.651.651.65非加密区体积配箍率%0.820.820.820.82λv0.0900.0900.0900.090最小体积配箍率%0.4290.4290.4290.429层数项目A柱B柱C柱D柱2M(kN·m)133.35159.49159.49133.35N(kN)1302.351401.941401.941302.35V(kN)94.71116.26116.2694.71βc1.01.01.01.0ft(N/mm2)1.431.431.431.43fc(N/mm2)14.314.314.314.3b(mm)500500500500h(mm)500500500500保护层厚度(mm)40404040fyv(N/mm2)300300300300λ=M/(Vh0)3.062.982.983.060.2/0.15βcfcbh0657800657800657800657800验算截面尺寸满足满足满足满足实取λ3.002.982.983.000.3fcA1072.501072.501072.501072.50N实际取值(kN)1072.501072.501072.501072.50Vc(kN)146.40146.78146.78146.40是否按计算配筋否否否否Asv/s按构造配筋按构造配筋按构造配筋按构造配筋箍筋直径10101010加密区配筋4B104B104B104B10加密区间距100100100100加密区长度500500500500非加密区配筋4B104B104B104B10非加密区间距200200200200加密区体积配箍率%1.651.651.651.65非加密区体积配箍率%0.820.820.820.82λv0.0900.0900.0900.090最小体积配箍率%0.4290.4290.4290.429层数项目A柱B柱C柱D柱1M(kN·m)201.87212.44212.44201.87N(kN)1664.361771.191771.191664.36V(kN)81.76100.03100.0381.76βc1.01.01.01.0ft(N/mm2)1.431.431.431.43fc(N/mm2)14.314.314.314.3b(mm)650650650650h(mm)650650650650保护层厚度(mm)40404040fyv(N/mm2)300300300300λ=M/(Vh0)3.733.483.483.730.2/0.15βcfcbh01133990113399011339901133990验算截面尺寸满足满足满足满足实取λ3.003.003.003.000.3fcA1812.531812.531812.531812.53N实际取值(kN)1812.531812.531812.531812.53Vc(kN)250.34250.34250.34250.34是否按计算配筋否否否否Asv/s按构造配筋按构造配筋按构造配筋按构造配筋箍筋直径10101010加密区配筋4B104B104