垂直支撑节点计算

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,垂直支撑节点计算,1.垂直支撑设计条件:梁高、与柱连接方向、支撑与梁轴线角度(3060,0,),支撑力大小 (按设计值需要乘1.3荷载分项系数),2.节点计算,一个高强度螺栓抗剪承载力设计值计算:,N,Vb,=0.9 x n,f,x x P,p=0.9*0.9/1.2*Ae*fy=0.675*Ae*fy,Ae=/4d-13/24*sqrt3*p2,垂直支撑与节点板螺栓计算:,n = N / 2 X N,Vb,根据n个螺栓数量,进行孔排列 原则:腹板4个,剩余布置于翼缘.,注:当螺栓连接长度 L115d,0,时,高强度螺栓抗剪承载力设计值需要乘以,(1.1-L1/150*d,0,)折算系数,但L160d,0,时折算系数最小为0.7,重新计算螺栓,数量.,垂直支撑与节点板连接角钢计算:,1,a.计算-剖面连接面积:,假定连接角钢规格 ,腹板连接为,t2,x170(170为定值),An=4*(A1-n1*t1*2.4)+2*(17-2*2.4)*t2,b.计算连接强度:,构件连接强度: =N/A,高强度螺栓连接处强度: =(1-0.5n1/n)*N/An (-剖面,),节点板计算:,a.根据螺栓总数和角钢规格,布置节点板螺栓位置.,b.计算板件的有效宽度,be=(300+2*s+2*n2*75*tg30-n3*24),c.计算,节点板厚度,t = N /(be x f),水平和垂直方向,螺栓数量计算:,n,sp,=,N *cos/ N,Vb,n,cz,= N *sin/ N,Vb,考虑连接长度 L115d0时螺栓抗剪承载力设计值折算系数,2,节点板外形尺寸计算:,a.腹板连接方向,A = 380 + 275*p/h + 330*L/h (,支撑角度偏向梁),380 = 4x75+2x40 (支撑力查角钢螺栓数量),275 = 300/2+125,梁高/2+U=600/2+30=330 (梁高600 U=30,梁高500 U=50),A = 380 + 275*h/p + BF/2*L/p (支撑角度偏向柱),BF/2 (翼缘宽度二分之一),-,B = Axh/L + 285xp/L - 316,B = Axh/L + 285xp/L - 266,285=300/2+125+10,316=梁高/2+16=600/2+16,266=梁高/2+16=500/2+16,-,C = AxP/L + 285xh/L - (TW/2+16),3,D = C-570 X h/L,570 = 300+2x125+2x10,E = B-570 X P/L,F = (A-40)x P/L,G = (A-40)x h/L,b.翼缘连接方向,A=380+275*p/h+330*L/h (支撑角度偏向梁),380 = 4x75+2x40 (按支撑力查角钢螺栓数量),275 = 300/2+125,330=梁高/2+U=600/2+30 (梁高600 U=30,梁高500 U=50),A=380+275xh/p+(H/2 +U)xL/p (支撑角度偏向柱),H/2 (柱断面高度的二分之一),-,B = Axh/L + 285xp/L - 316,B = Axh/L + 285xp/L - 316,-,4,C = AxP/L + 285xh/L - (H/2+16),D = C-570 X h/L,E = B-570 X P/L,F = (A-40)x P/L,G = (A-40)x h/L,连接节点板自由边长度L1/ t60xsqrt（235/fy），需要在自由边加角钢予以加强。,连接节点板部分尺寸对照表:,p 102 t L100x10 16,102 p 130 t L100x10 16,130 p 158 t L125x12 18,158 p 186 t L125x12 20,186 p 214 t L160x16 24,214 p 270 t L160x16 24,270 p 326 t L160x16 30,326 p 382 t L200x20 30,5,382 p 438 t L200x20 30,438 p 494 t L200x20 32,6,