一个螺栓连接模拟例子(包含预紧力).docx

1、螺栓连接模拟（命令流）/PREP7 ! !参数定义! ! hc=400 ! 柱截面高度 bc=200 ! 柱截面宽度 tcf=10 ! 柱翼缘厚度 tcw=8 ! 柱腹板厚度 lc=1100 ! 柱构件伸出长度 tep=20 ! 端板厚度 bep=bc+20 !端板宽度 HEP1= hc+200 !端板高度 tst=10 ! 端板外伸部分加劲肋厚度 hst=80 !端板外伸部分加劲肋高度 bst=bc/2-5 ! 端板外伸部分加劲肋高度 lbt=2*tep ! 螺栓杆长度 dbt=20 ! 螺栓杆直径或有效直径 dbth=31.4 ! 螺栓头和螺母直径 lbth=12.5 !螺栓头厚度 pre

2、ten=155000 !螺栓施工预拉力 miu=.4 !端板间抗滑移系数 hb=400 ! 梁截面高度 bb=200 ! 梁截面宽度 tbf=8 ! 梁翼缘厚度 tbw=6 ! 梁腹板厚度 lb1=870 ! 梁构件伸出长度 lb2=200 ! 梁构件伸出的水平加载断长度 hb1=362 ! 梁最左端高度 dh0=dbt+2 !螺栓孔直径 randa=0.05 ! 梁的坡度 aa=50 !螺栓中心到梁翼缘边缘（非受力方向）的距离 aa1=50 ! 螺栓中心到梁翼缘边缘（受力方向的距离 ab=120 ! 一二排螺栓间距 displa=-50 ! 施加的位移荷载大小 ! 建模开始! ! 梁模型 !

3、 block,o,tep, -hep1/2,hep1/2,0,bep/2 block,-tep,0,-hep1/2-100+4*tcf,hep1/2,0,bep/2 k,20,tep,hb/2 k,21,tep,hb/2-tbf k,22,tep+lb1,hb/2-tbf+lb1*randa k,23,tep+lb1,hb/2+lb1*randa k,24,tep,hb/2,bb/2 k,25,tep,hb/2-tbf,bb/2 k,26,tep+lb1,hb/2-tbf+lb1*randa,bb/2 k,27,tep+lb1,hb/2+ lb1*randa,bb/2 v,20,21,22,2

4、3,24,25,26,27 k,28,tep,hb/2-tbf k,29,tep,-hb/2+tbf k,30,tep+lb1,-hb/2+tbf+lb1*randa k,31,tep+lb1,hb/2-tbf+lb1*randa k,32,tep,hb/2-tbf,tbw/2 k,33,tep,-hb/2+tbf ,tbw/2 k,34,tep+lb1,-hb/2+tbf+lb1*randa ,tbw/2 k,35,tep+lb1,hb/2-tbf+lb1*randa,tbw/2 v,28,29,30,31,32,33,34,35 block,tep+lb1,tep+lb1+lb2,hb/2

5、-tbf+lb1*randa,hb/2+lb1*randa,0,bb/2 block,tep+lb1,tep+lb1+lb2, -hb/2+tbf+lb1*randa,hb/2- tbf+lb1*randa,0,tbw/2 vgen,2,3,5,2,-hb+tbf, ,0 ! ! 颜色区分 volumn! /PNUM,KP,0 /PNUM,LINE,0 /PNUM,AREA,0 /PNUM,VOLU,1 /PNUM,NODE,0 /PNUM,TABN,0 /PNUM,SVAL,0 /NUMBER,1 /PNUM,ELEM,0 /REPLOT ! ! 柱模型 ! !端板对接斜坡! ! 端板对接斜

6、坡 ! k,80,-tep,-hep1/2-100+4*tcf k,81,-tep,-hep1/2-100k,82,-tep+tcf, -hep1/2-100 k,83,0,-hep1/2-100+4*tcf k,84,-tep,-hep1/2-100+4*tcf,bep/2 k,85,-tep,-hep1/2-100,bep/2 k,86,-tep+tcf, -hep1/2-100,bep/2 k,87,0,-hep1/2-100+4*tcf,bep/2 v,80,81,82,83,84,85,86,87 ! 柱翼缘 ! block,-tep,-tep+tcf,-hep1/2-100,-hb

7、/2-lc,0,bc/2 block,-tep-hc+tcf,-tep-hc+2*tcf,-hb/2-lc,hb/ 2-(hc-2*tcf)*randa,0,bc/2 ! 柱腹板 ! ! k,89,-tep-hc+2*tcf,-hb/2-lc k,90,-tep,-hb/2-lc k,92,-tep-hc+2*tcf,hb/2-(hc-2*tcf)*randa-tbf k,91,-tep,hb/2-tbf k,93,-tep-hc+2*tcf,-hb/2-lc,tcw/2 k,94,-tep,-hb/2-lc,tcw/2 k,96,-tep-hc+2*tcf,hb/2-(hc-2*t cf)*

8、randa-tbf,tcw/2 k,95,-tep,hb/2-tbf,tcw/2 v,89,90,91,92,93,94,95,96 k,98, -tep,hb/2 k,97, -tep-hc+2*tcf,hb/2-(hc-2*tcf)*randa k,100, -tep,hb/2,bb/2 k,99, -tep-hc+2*tcf,hb/2-(hc-2*tcf)*randa,bb/2 v,91,92,97,98,95,96,99,100 block,-tep-hc+2*tcf,-tep,-hb/2,-hb/2+tst,tcw/2,tcw/2+bst ! 端板外伸加劲肋! k,109,tep,h

9、b/2 k,110,tep+hst,hb/2+hst*randa k,111,tep,hb/2+hst k,112,tep,hb/2,tst/2 k,113,tep+hst,hb/2+hst*randa,tst/2 k,114,tep,hb/2+hst,tst/2 V, 109,110,111,112,113,114 k,115,tep,-hb/2 k,116,tep+hst,-hb/2+hst*randa k,117,tep,-hb/2-hst k,118,tep,-hb/2,tst/2 k,119,tep+hst,-hb/2+hst*randa ,tst/2 k,120,tep,-hb/2

10、-hst,tst/2 V, 115,116,117,118,119,120 k,121,-tep,hb/2 k,122,-tep-hst,hb/2-hst*randa k,123,-tep,hb/2+hst k,124,-tep,hb/2,tst/2 k,125,-tep-hst,hb/2-hst*randa ,tst/2 k,126,-tep,hb/2+hst ,tst/2 v, 121,122,123,124,125,126 ! 梁加劲肋 ! wpoff,tep+lb1+lb2/2,-hb/2+tbf+lb1*randa,0 block,-tst/2,tst/2,0,hb-2*tbf,tb

11、w/2,tbw/2+bst block,75-tst/2,tst/2+75,0,hb-2*tbf,tbw/2,tbw/2+bst block,-75-tst/2,-75+tst/2,0,hb-2*tbf,tbw/2,tbw/2+bst wplane,0,hb/2+100-aa,bep/2-aa1,0,hb/2+aa+10,bep/2-aa1, 0,hb/2-aa+100+10,bep/2-aa1+10 ! 端板打孔 ! cylind,dh0/2,-tep-10,tep+10,0,360 vsel,S,LOC,Y,hb/2+100-aa vgen,2,all, , ,-ab , , ,0 vge

12、n,2,all, , ,-(hep1-2*aa-ab) , , ,0 cm,bolt,volu !布尔运算! vsel,s,loc,x,-tep+5,tep VSEL,U, , ,bolt cm,endplate,volu cmsel,all VSBV,endplate,bolt,keep ! ! 建螺栓 ! ! cylind,dbt/2,-tep,tep,0,360 cylind,dbth/2,-tep-lbth,-tep,0,360 cylind,dbth/2,tep,tep+lbth,0,360 wpoff,-ab,0 cylind,dbt/2,-tep,tep,0,360 cylind

13、,dbth/2,-tep-lbth,-tep,0,360 cylind,dbth/2,tep,tep+lbth,0,360 wpoff,-(hep1-2*aa-ab),0 cylind,dbt/2,-tep,tep,0,360 cylind,dbth/2,-tep-lbth,-tep,0,360 cylind,dbth/2,tep,tep+lbth,0,360 wpoff,ab cylind,dbt/2,-tep,tep,0,360 cylind,dbth/2,-tep-lbth,-tep,0,360 cylind,dbth/2,tep,tep+lbth,0,360 allsel,all NU

14、MMRG,ALL, , , ,LOW ! !粘贴柱腹板翼缘端板和相应的加劲肋! ! vsel,s,loc,x,-tep-hc,0 vsel,u,loc,x,0,tep VGLUE,all ! !粘贴梁腹板翼缘端板和相应的加劲肋! ! vsel,s,loc,x,0,lb1+lb2+tep vsel,u,loc,x,-tep,0 VGLUE,all ! !粘贴螺栓! ! vsel,s,loc,z,bep/2-aa1 VGLUE,all cm,bolt,volu ALLSEL,ALL NUMMRG,ALL, , , ,LOW ! !定义材料和单元属性! ! ! 下面定义材料 1，Q345 钢材用于梁柱端板! ! et,1,solid92 mp,ex,1,206e3 mp,prxy,1,0.3 tb,biso,1,1,2 tbtemp,0 tbdata,345,0, ! ! 下面定义材料 2，用于高强螺栓! ! mp,ex,2,206e3 mp,prxy,2,0.3 tb,biso,2,1,2 tbtemp,0 tbdata,940,0,