材料:Q235fy=215N/mm²角钢:L160×16A1=4907mm²Ix=1.175E+07mm4ix=48.9mmi1=31.4mmz0=45.5mmb1=160mm格构柱:柱截面宽B=490mmy1=B/2-z0=199.5mm缀板尺寸b2=440mmh2=250mmt=8mma=1000mm8mm19628mm²8.282E+08mm43.380E+06mm³荷载:轴力N=1237.62KN弯矩Mx=60.6KN.mMy=60.6KN.m柱的计算长度:柱长l=9.5m长度系数μ=0.7计算长度le=μ*l=6.65m1.00满足要求长细比λ=le/i=32.3723.8940.23缀板与柱肢连接角焊缝hf=λ1=(a-h2)/i1=(注:两端铰支μ=1,两端固定μ=0.5,一端固定一端自由μ=2,一端固定一端铰支μ=0.7。)98.9(注:须Mx≥My,取正数值)205.4[f]=215N/mm²三、弯矩作用整体稳定性验算N/mm²≤W=Wx=Wy=2I/B=缀板式格构柱计算书由于格构柱x轴与y轴对称,因此仅按一个方向最不利情况考虑即可。注:蓝色区域为需要填入的数据,其余为自动计算。一、计算参数二、格构柱强度验算mm14AA1214AyIIxAIiWMWMANyyxx2120yx~1~0.9051.003.462E+07N满足要求λ1=23.890.961满足要求λ1=23.89≤40满足要求λ1=23.89≤0.5λmax=25满足要求柱分肢线刚度:Ix/a=1.175E+04mm³刚度比值:8.9≥6满足要求缀板焊缝连接验算:剪力T=V*a/2y1=119.0KN弯矩M=V*a/4=11.9KN.m135mm2732.8mm²焊缝形心距缀板左端距离x0=27.58mmrx=b3-2hf-x0=91.4mmry=h2/2+0.7hf=130.6mmIx=3.009E+07mm4Iy=4.285E+06mm4J=Ix+Iy=3.437E+07mm4σT=T×rx/J=31.6N/mm²τT=T×ry/J=45.1N/mm²σV=T/Aw=43.6N/mm²焊缝综合应力:87.6N/mm²满足要求缀板线刚度之和:47.49KNb3=(b2-B+2b1)/2=≤97.8N/mm²四、分肢(单肢)稳定性验算[f]=215N/mm²五、其他验算及构造要求1.044E+05mm³4.614E+05N分肢轴力:根据b类截面,查表得根据b类截面,查表得1.00≤[f]=215N/mm²≤ftw=160N/mm²106.2N/mm²2120xymxMM35.065.0ty22'1.1EANExyytyExxxmxWMNNWMAN'1111444yMyMNNyx11AN0322124zBht23585yfAfV23227.0hhbhAffw22NTfVT~2~b类截面:40.23fy=215N/mm²38.50.414>0.215当时当时=0.905所以取0.905附录C轴心受压构件的稳定系数钢结构设计规范GB50017-2003235yfEfyn/215.0n211na215.0n222322322421nnnnnnaaaab类截面:23.89fy=215N/mm²22.80.246>0.215当时当时=0.961所以取0.961钢结构设计规范GB50017-2003附录C轴心受压构件的稳定系数235yfEfyn/215.0n211na215.0n222322322421nnnnnnaaaa