组合梁ansys建模

1、/COM,Structural /config,NRES,90000 /UNITS,SI/prep7gybh=0.010 ! 钢梁翼板厚度 10mm gybk=0.150 ! 钢梁翼板宽度 150mm gfbh=0.007 ! 钢梁腹板厚度 7mm gfbg=0.130 ! 钢梁腹板高度 130mm hntbh=0.075 ! 混凝土板厚度 75mm hntbk=0.600 ! 混凝土板宽度 600mm hntbch=6.000 ! 每节混凝土板长度 6000mm glch=6.200 ! 每节钢梁总长度 600mm xhntbh=0.060 ! 混凝土板厚度 60mm xhntbk=0.22

2、0 ! 混凝土板宽度 220mm xhntbch=1.200 ! 每节混凝土板长度 1200mmet,1,solid65,3 ! 定义混凝土板单元 et,2,shell43 ! 定义钢梁单元 et,3,combin39,0 ! 定义弹簧单元 combin39 et,4,solid45 ! 定义垫板单元 et,5,link8 ! 定义纵向钢筋单元mp,ex,1,1.9095E10 ! 定义混凝土板的弹性模量 N/mm2 mp,prxy,1,0.20!定义混凝土板的泊松比mp,dens,1,2.6e3!定义混凝土板的密度mp,ex,2,2.10E11!定义钢梁及一级钢筋的弹性模量mp,prxy,2

3、,0.30!定义钢梁及一级钢筋的泊松比mp,dens,2,7.85e3 ! 定义钢梁及一级钢筋的密度mp,ex,3,2.00E11 ! 定义二级钢筋的弹性模量 mp,prxy,3,0.3 ! 定义二级钢筋的泊松比 mp,dens,3,7.85e3 ! 定义二级钢筋的密度mp,ex,4,2.02E11 ! 定义垫板材料特性 mp,prxy,4,0.3tb,miso,1 ! 混凝土屈服准则 *do,e,0.0002,0.002,0.0001 tbpt,e,20.1e6*(1000*e-500*500*e*e) *enddotbpt,0.0035,20.1e6 ! 该处将 0.0033 改为了 0.

4、0035 tbpl,miso,1混凝土破坏准则tb,bkin,2,1,2 ! tbdata,235e6,10.3e6 tbpl,bkin,2tb,bkin,3,1,2 ! tbdata,335e6,10.3e6 tbpl,bkin,3r,1,2,0.00745,90,90r,2,2,0.00673,90,90tb,concr,1 !tbdata,0.6,0.8,2.01e6,-1钢梁及一级钢筋的本构关系二级钢筋的本构关系!335 屈服应力， 10 代表屈服后的切线模量定义上混凝土板实常数定义下混凝土板实常数r,3,gybh,gybh,gybh,gybh !定义钢梁上下翼缘的厚度r,4,gfbh

5、,gfbh,gfbh,gfbh ! 定义钢梁腹板厚度r,5,0,0,0.00002,12175,0.00004,16021 ! 定义弹簧的荷载变形曲线 rmore,0.00005,17492,0.00006,18789,0.00007,19956 rmore,0.00008,21022,0.00009,22006,0.0001,22921 rmore,0.0002,29831,0.0003,34610,0.0004,38313 rmore,0.0005,41338,0.0006,43887,0.0007,46078 rmore,0.0008,47989,0.0009,49673,0.001,5

6、1169 rmore,0.002,61124,0.003,63521r,6垫板实常数r,7,0.00004398上混凝土板中纵筋的横截面积(折合而来)blc4,0,0,glch,gfbg ! 钢梁腹板 csys,4wprota,-90blc4,0,-gybk*0.5,glch,gybk*0.5 ! 令)blc4,0,0,glch,gybk*0.5 ! aglue 命令 )wpoffs,0,0,gfbgblc4,0,-gybk*0.5,glch,gybk*0.5 !r,8,0.000050265 ! 下混凝土板中纵筋的横截面积I*!注：钢梁总长 6200mm跨度为3000+3000，在两端支座外

7、各留出了100mm钢梁下翼板之半 ( 一次建成整个板时无法用aglue 命钢梁下翼板之半 ( 一次建成整个板时无法用钢梁上翼板之半 ( 一次建成整个板时无法用aglue 命令) blc4,0,0,glch,gybk*0.5 aglue 命令 )钢梁上翼板之半 ( 一次建成整个板时无法用wpoffs,0.100 wprota,-90 asbw,all wpoffs,-hntbch*0.5 asbw,all wpoffs,-0.5*hntbch asbw,all用工作平面切割梁体然后添加加劲肋nummrg,all numcmp,all*do,i,0,2,1*do,j,0,1,1 ! l,15+j+

8、6*i,17+j+6*i *enddo*enddo连线，为增加加劲肋作准备al,28,50,21,16al,31,16,25,51al,33,52,7,3al,34,3,11,53al,44,54,27,19al,47,19,41,55asel,allaglue,all !粘结各板形成钢梁nummrg,all numcmp,allasel,s,loc,x,-gfbgasel,a,loc,x,0! 选中上下翼缘板，准备对钢梁翼板进行单元划分aplot aatt,2,3,2 !赋予钢梁上下翼缘板单元特性lesize,31,0.0375$lesize,28,0.0375定义上下翼缘有限元网格尺寸le

9、size,25,0.0375$lesize,21,0.0375lesize,18,0.100$lesize,17,0.100lesize,36,0.100$lesize,35,0.100lesize,23,0.100$lesize,20,0.100lesize,15,0.100$lesize,14,0.100mshkey,1 ! 声明使用映射网格划分mshape,0 ! amesh,all声明使用平面四边形网格划分allsel,all asel,s,loc,y,0 ! aplot选中腹板，准备对钢梁腹板进行单元划分aatt,2,4,2 lesize,16,4 !定义腹板有限元网格尺寸mshke

10、y,1 ! 声明使用映射网格划分mshape,0 ! amesh,all allsel,all声明使用平面四边形网格划分asel,s,loc,z,0asel,a,loc,z,hntbch*0.5 asel,a,loc,z,hntbch aplot aatt,2,4,2mshkey,1 ! 声明使用自由网格划分mshape,0 ! amesh,all allsel,all声明使用平面三角形网格划分I*wpoffs,gybh*0.5 ! 准备建立上侧混凝土板几何模型blc4,0,-hntbk*0.5,hntbh,hntbk,hntbchI*! 对上混凝土板进行映射划分wpoffs,0.0375wp

11、rota,90vsbw,allwpoffs,0.075vsbw,allvsel,allvatt,1,1,1lesize,78,3$lesize,87,1lesize,80,3$lesize,60,2lesize,66,0.100mshkey,1 ! 声明使用映射网格划分mshape,0,3D ! vmesh,all声明使用平面四边形网格划分!esel,s,real,1查看钢筋的方向!/DEVICE,VECTOR,1!/TYPE,BASIC!/eshape,1!allsel,allI*! 加弹簧、耦合! 上混泥土板I*allsel,all wpoffs,-0.0375 nsel,s,loc,z,

12、-0.0375,0.0375 nsel,r,loc,x,-0.5*gybh,0 type,3 ! 设定弹簧单元 real,5e,24,917 *do,i,0,13,1 e,330+2*i,977-2*i *enddoe,299,949 *do,i,0,13,1 e,545+2*i,947-2*i*enddoe,423,919cp,1,uy,24,917 *do,i,-1,27,1 cp,3+i,uy,330+i,977-i*enddo cp,31,uy,299,949 *do,i,-1,27,1 cp,33+i,uy,545+i,947-i*enddo cp,61,uy,423,919cp,6

13、2,uz,24,917 *do,i,-1,27,1 cp,64+i,uz,330+i,977-i*enddo cp,92,uz,299,949*do,i,-1,27,1 cp,94+i,uz,545+i,947-i *enddo cp,122,uz,423,919e,118,1600*do,i,0,13,1e,390+2*i,1660-2*i*enddoe,359,1632*do,i,0,13,1e,603+2*i,1630-2*i*enddoe,485,1589I*cp,123,uy,118,1600 *do,i,-1,27,1 cp,125+i,uy,390+i,1660-i*enddoc

14、p,153,uy,359,1632*do,i,-1,27,1 cp,155+i,uy,603+i,1630-i*enddocp,183,uy,485,1589cp,184,uz,118,1600*do,i,-1,27,1 cp,186+i,uz,390+i,1660-i*enddocp,214,uz,359,1632*do,i,-1,27,1 cp,216+i,uz,603+i,1630-i*enddocp,244,uz,485,1589allsel,all! 搞定I*! 为上混凝土板增设纵向钢筋 nsel,s,loc,x,0.5*hntbh type,5 ! 设定弹簧单元real,7*do,

15、j,0,1,1e,1232+j,1587-j*do,i,0,57,1e,1587-2*i-j,1585-2*i-j*enddoe,1471-j,1047-j*enddoe,918,1038*do,i,0,57,1e,1038-i,1037-i*enddoe,980,979e,1602,1721*do,i,0,57,1e,1721+i,1722+i*enddoe,1779,1597e,1787,2260*do,i,0,57,1e,2260-i,2259-i*enddoe,2202,1598e,1788,2319*do,i,0,57,1e,2319-i,2318-i*enddoe,2261,159

16、9allsel,allI*! 为荷载和支座处添加弹性垫块wpoffs,-0.5*gybh-gfbg,0.5*hntbch,-0.5*gybkblc4,-0.5*gybh-0.010,-0.100,0.010,0.200,gybkvsel,s,2vatt,4,6,4 lesize,93,4$lesize,89,4$lesize,90,1mshkey,1 ! 声明使用映射网格划分mshape,0,3D ! 声明使用平面四边形网格划分 vmesh,allnsel,s,loc,x,-0.5*gybh,0 nsel,r,loc,y,-0.100,0.100 cp,1000,uy,238,2325$cp,

17、1001,uy,267,2346 cp,1002,uy,178,2347$cp,1003,uy,207,2348 cp,1004,uy,149,2332$cp,1005,uy,208,2328 cp,1006,uy,209,2368$cp,1007,uy,57,2365 cp,1008,uy,87,2362$cp,1009,uy,27,2334 cp,1010,uy,424,2326$cp,1011,uy,453,2343 cp,1012,uy,58,2344$cp,1013,uy,88,2345 cp,1014,uy,28,2331cp,1005+35,uz,208,2328 cp,1006

18、+35,uz,209,2368$cp,1007+35,uz,57,2365 cp,1008+35,uz,87,2362$cp,1009+35,uz,27,2334cp,1005+70,ux,208,2328 cp,1006+70,ux,209,2368$cp,1007+70,ux,57,2365 cp,1008+70,ux,87,2362$cp,1009+70,ux,27,2334allsel,all nsel,s,loc,x,-0.5*gybh-0.010 nsel,r,loc,y,0 d,all,uy,0,ux,uznsel,s,loc,x,0 nsel,r,loc,y,0.5*hntbch d,all,uy,0,uznsel,s,loc,x,0 nsel,r,loc,y,-0.5*hntbch d,all,uy,0,uz allsel,all/solu antype,0 solcontrol,on outres,all,5 nlgeom,off