ansys桥梁受力分析命令流

ANSYS刚桁架桥模态分析命令流/TITLE,Truss Bridge Static Analysis !指定标题/COM,Structural !选择分析类型为结构分析/PREP7 !进入前处理器ET,1,BEAM188 !定义1号单元类型KEYOPT,1,3,2ET,2,SHELL181 !定义2号单元类型KEYOPT,1,3,2SECTYPE, 1, BEAM, I, duan, 0 !定义1号工字形截面SECOFFSET, CENT !截面质心不偏移SECDATA,0.4,0.4,0.4,0.016,0.016,0.016,0,0,0,0 !1号截面参数SECTYPE, 2, BEAM, I, XIANHENG, 0 !定义2号工字形截面SECOFFSET, CENT ! 截面质心不偏移SECDATA,0.4,0.4,0.4,0.012,0.012,0.012,0,0,0,0 ! 2号截面参数SECTYPE, 3, BEAM, I, FU, 0 ! 定义3号工字形截面SECOFFSET, CENT ! 截面质心不偏移SECDATA,0.3,0.3,0.4,0.012,0.012,0.012,0,0,0,0 ! 3号截面参数R,1,0.0187,0.17e-3,0.54e-3,0.4,0.4,0, !设置1号实常数R,2,0.0141,0.128e-3,0.415e-3,0.4,0.4,0, !设置2号实常数R,3,0.0117,0.541e-4,0.324e-3,0.3,0.4,0, !设置3号实常数R,4,0.3, , , , , , !设置4号实常数MP,EX,1,2.1E11 !定义1号材料弹性模量MP,PRXY,1,0.3 !定义1号材料泊松比MP,DENS,1,7850 !定义1号材料密度MP,EX,2,3.5E10 !定义2号材料弹性模量MP,PRXY,2,0.1667 !定义2号材料泊松比MP,DENS,2,2500 !定义2号材料密度N, ,0,0,-5, , , , !建立节点NGEN,4,4,ALL, , ,12, , ,1, !复制节点NGEN,2,1,ALL, , , , ,10,1, !复制节点NGEN,2,1,2,10,4, ,16, ,1, !复制节点NGEN,2,1,3,11,4, , ,-10,1, !复制节点TYPE,1 !选择1号单元类型MAT,1 !选择1号材料REAL,1 ! 选择1号实常数ESYS,0 !单元坐标系SECNUM,1 !选择1号截面TSHAP,LINE !选择线形单元E,11,14 !建立单元E,12,13 !建立单元TYPE,1 ! 选择1号单元类型MAT,1 ! 选择1号材料REAL,2 ! 选择2号实常数ESYS,0 ! 单元坐标系SECNUM,2 ! 选择2号截面TSHAP,LINE ! 选择线形单元E,2,6 !建立单元E,6,10E,10,14E,1,5E,5,9E,9,13E,3,7E,7,11E,4,8E,8,12E,1,2E,3,4E,5,6E,7,8E,9,10E,11,12E,13,14TYPE,1 ! 选择1号单元类型MAT,1 ! 选择1号材料REAL,3 ! 选择3号实常数ESYS,0 ! 单元坐标系SECNUM,3 ! 选择3号截面TSHAP,LINE ! 选择线形单元E,3,6 !建立单元E,6,11E,4,5E,5,12E,2,3E,1,4E,6,7E,5,8E,10,11E,9,12TYPE,2 ! 选择2号单元类型MAT,2 ! 选择2号材料REAL,4 ! 选择4号实常数ESYS,0 ! 单元坐标系TSHAP,QUAD ! 选择四边形单元E,1,2,6,5 !建立单元E,5,6,10,9E,9,10,14,13NSYM,X,14,ALL !所有节点以y0z平面对称ESYM, ,14,ALL ! 所有单元以y0z平面对称NUMMRG,ALL, , , ,LOW !合并重复节点单元，编号取较小者NUMCMP,ALL !压缩节点单元等编号FINISH !结束前处理器/SOL !进入求解器NSEL,S, , ,23,24 !选择节点D,ALL, ,0, , , ,UX,UY,UZ, , , , !约束3个自由度NSEL,S, , ,13,14 !选择节点D,ALL, ,0, , , , ,UY,UZ, , , , !约束两个自由度ALLSEL,ALL !选择所有ANTYPE,2 !选择分析类型，模态分析MODOPT,SUBSP,6,0,100, ,OFF !选择字空间法，提取6阶模态SUBOPT,8,4,10,0,0,ALL !字空间法设置SOLVE !开始求解FINISH !结束求解器/POST1 !进入普通后处理器SET,LIST !列表格阶模态SET,FIRST !读取第一阶模态PLNSOL, U,SUM, 2,1.0 !显示振型云图SET,NEXT !读取下一阶模态PLNSOL, U,SUM, 2,1.0 !显示振型云图SET,NEXT !读取下一阶模态PLNSOL, U,SUM, 2,1.0 !显示振型云图SET,NEXT !读取下一阶模态PLNSOL, U,SUM, 2,1.0 !显示振型云图SET,NEXT !读取下一阶模态PLNSOL, U,SUM, 2,1.0 !显示振型云图SET,NEXT !读取下一阶模态PLNSOL, U,SUM, 2,1.0 !显示振型云图FINISH !结束普通后处理器! /EXIT,ALL !退出程序。

钢桁架桥静力受力分析对一架钢桁架桥进行具体静力受力分析，分别采用GUI方式和命令流方式。

A 问题描述图6-15 钢桁架桥简图已知下承式简支钢桁架桥桥长72米，每个节段12米，桥宽10米，高16米。

设桥面板为0.3米厚的混凝土板，当车辆行驶于桥梁上面时，轴重简化为一组集中力作用于梁上，来计算梁的受力情况。

桁架杆件规格有三种，见下表：杆件截面号形状规格端斜杆 1 工字形400×400×16×16上下弦 2 工字形400×400×12×12 横向连接梁 2 工字形400×400×12×12其他腹杆 3 工字形400×300×12×12所用材料属性如下表：表6-3 材料属性参数钢材混凝土弹性模量EX 2.1×1011 3.5×1010泊松比PRXY 0.3 0.1667密度DENS 7850 2500B GUI操作方法1.创建物理环境1）过滤图形界面：GUI：Main Menu> Preferences，弹出“Preferences for GUI Filtering”对话框，选中“Structural”来对后面的分析进行菜单及相应的图形界面过滤。

2）定义工作标题：GUI：Utility Menu> File> Change Title，在弹出的对话框中输入“Truss Bridge StaticAnalysis”，单击“OK”。

如图6-16（a）。

指定工作名：GUI：Utility Menu> File> Change Jobname，弹出一个对话框，在“Enter new Name”后面输入“Structural”，“New log and error files”选择yes，单击“OK”。

如图6-16（b）。

图6-16（a）定义工作标题图6-16（b）指定工作名3）定义单元类型和选项：GUI：Main Menu> Preprocessor> Element Type> Add/Edit/Delete，弹出“Element Types”单元类型对话框，单击“Add”按钮，弹出“Library of Element Types”单元类型库对话框。

（完整版）ANSYS最常用命令流+中文注释（超级大全）ANSYS最常用命令流+中文注释VSBV, NV1, NV2, SEPO, KEEP1, KEEP2 —Subtracts volumes from volumes，用于2个solid相减操作，最终目的是要nv1-nv2=?通过后面的参数设置，可以得到很多种情况：sepo项是2个体的边界情况，当缺省的时候，是表示2个体相减后，其边界是公用的，当为sepo的时候，表示相减后，2个体有各自的独立边界。

keep1与keep2是询问相减后，保留哪个体？当第一个为keep时，保留nv1,都缺省的时候，操作结果最终只有一个体，比如：vsbv,1,2,sepo,,keep,表示执行1-2的操作，结果是保留体2，体1被删除，还有一个1-2的结果体，现在一共是2个体（即1-2与2），且都各自有自己的边界。

如vsbv,1,2,,keep,,则为1-2后，剩下体1和体1-2，且2个体在边界处公用。

同理，将v换成a 及l是对面和线进行减操作！mp,lab, mat, co, c1,…….c4 定义材料号及特性lab: 待定义的特性项目（ex,alpx,reft,prxy,nuxy,gxy,mu,dens）ex: 弹性模量nuxy: 小泊松比alpx: 热膨胀系数reft: 参考温度reft: 参考温度prxy: 主泊松比gxy: 剪切模量mu: 摩擦系数dens: 质量密度mat: 材料编号（缺省为当前材料号）co: 材料特性值，或材料之特性，温度曲线中的常数项c1-c4: 材料的特性-温度曲线中1次项，2次项，3次项，4次项的系数定义DP材料：首先要定义EX和泊松比：MP，EX，MA T，……MP，NUXY，MAT，……定义DP材料单元表（这里不考虑温度）：TB，DP，MA T进入单元表并编辑添加单元表：TBDATA，1，CTBDATA，2，ψTBDATA，3，……如定义：EX=1E8，NUXY=0.3，C=27，ψ=45的命令如下：MP，EX，1，1E8MP，NUXY，1，0.3TB，DP，1TBDATA，1，27TBDATA，2，45这里要注意的是，在前处理的最初，要将角度单位转化到“度”，即命令：*afun,degVSEL, Type, Item, Comp, VMIN, VMAX, VINC, KSWP Type，是选择的方式，有选择（s）,补选（a），不选(u)，全选(all)、反选（inv）等,其余方式不常用Item, Comp 是选取的原则以及下面的子项如volu 就是根据实体编号选择，loc 就是根据坐标选取，它的comp就可以是实体的某方向坐标！其余还有材料类型、实常数等MIN, VMAX, VINC，这个就不必说了吧！,例：vsel,s,volu,,14vsel,a,volu,,17,23,2上面的命令选中了实体编号为14，17，19，21，23的五个实体VDELE, NV1, NV2, NINC, KSWP: 删除未分网格的体nv1:初始体号nv2:最终的体号ninc:体号之间的间隔kswp=0:只删除体kswp=1:删除体及组成关键点,线面如果nv1=all,则nv2,ninc不起作用其后面常常跟着一条显示命令VPLO,或aplo,nplo,这个湿没有参数的命令，输入后直接回车，就可以显示刚刚选择了的体、面或节点，很实用的哦！Nsel, type, item, comp, vmin, vmax, vinc, kabs 选择一组节点为下一步做准备Type: S: 选择一组新节点（缺省）R: 在当前组中再选择A: 再选一组附加于当前组U: 在当前组中不选一部分All: 恢复为选中所有None: 全不选Inve: 反向选择Stat: 显示当前选择状态Item: loc: 坐标node: 节点号Comp: 分量Vmin,vmax,vinc: ITEM范围Kabs: “0” 使用正负号“1”仅用绝对值下面是单元生死第一个载荷步中命令输入示例：!第一个载荷步TIME,... !设定时间值（静力分析选项）NLGEOM,ON !打开大位移效果NROPT,FULL !设定牛顿－拉夫森选项ESTIF,... !设定非缺省缩减因子（可选）ESEL,... !选择在本载荷步中将不激活的单元EKILL,... !不激活选择的单元ESEL,S,LIVE !选择所有活动单元NSLE,S !选择所有活动结点NSEL,INVE !选择所有非活动结点（不与活动单元相连的结点）D,ALL,ALL,0 !约束所有不活动的结点自由度（可选）NSEL,ALL !选择所有结点ESEL,ALL !选择所有单元D,... !施加合适的约束F,... !施加合适的活动结点自由度载荷SF,... !施加合适的单元载荷BF,... !施加合适的体载荷SA VESOLVE请参阅TIME,NLGEOM,NROPT,ESTIF,ESEL,EKILL,NSLE,NSEL,D, F,SF和BF命令得到更详细的解释。

ansys零件受力计算图文教程及APDL命令流目录图文教程 (2)附件 APDL命令流 (13)图文教程图1 选择单元类型图2 设定平面应力问题图3 设定材料属性图4 建立关键点图5作出圆弧图6建立其余的关键点和直线，用线围成面图7 复制并旋转、平移面得到另一个面图8 布尔运算图9删除多余的面图10设置材料，单元号图11设定单元尺寸图12划分网格图13约束左上销孔的全部位移图14 右下销孔施加均布压力载荷图15计算图16计算完成附件 APDL命令流finish/clear/prep7et,1,plane183keyopt,1,3,0mp,ex,1,30e6 !psi mp,prxy,1,0.27建模k,1,,1k,2,,-1k,3,,0.4k,4,,-0.4csys,1l,1,2l,3,4csys,0lsymm,x,allnummrg,allnumcmp,allldele,1,,,1k,,kx(1)+6,ky(1)k,,kx(2)+6,ky(2)l,1,5$l,5,6$l,6,2$l,2,4$l,1,3 al,3,4,7,8$al,1,2,5,6,7,8 wpoff,5cswplan,11,1agen,2,all,,,,90wpcsys,-1,0 csys,0 agen,,3,4,,,2,,,,1 aovlap,all adele,6,,,1 nummrg,all numcmp,all aesize,all,0.1 amesh,all约束dl,1,,alldl,3,,all加载lsel,s,,,9,11,2 sfl,all,pres,500 allsel,all计算/solusolvefinish。

!!连续梁桥/prep7et,1,4 !!!!定义梁单元et,2,21 !!!!定义mass21单元!!定义粱材料!!泊松比!!密度mp,ex,2,3.45e10 !!直线段梁材料和1M段梁材料mp,nuxy,2,0.2mp,dens,2,3302.153125mp,ex,3,3.45e10mp,nuxy,3,0.2mp,dens,3,3301.658695mp,ex,4,3.45e10mp,nuxy,4,0.2mp,dens,4,3299.906778mp,ex,5,3.45e10mp,nuxy,5,0.2mp,dens,5,3298.327219mp,ex,6,3.45e10mp,nuxy,6,0.2mp,dens,6,3292.351605mp,ex,7,3.45e10mp,nuxy,7,0.2mp,dens,7,3284.137255mp,ex,8,3.45e10mp,nuxy,8,0.2mp,dens,8,3271.802136mp,ex,9,3.45e10mp,nuxy,9,0.2mp,dens,9,3260.41903mp,ex,10,3.45e10mp,nuxy,10,0.2mp,dens,10,3248.193657mp,ex,11,3.45e10mp,nuxy,11,0.2mp,dens,11,3235.117644mp,ex,12,3.45e10mp,nuxy,12,0.2mp,dens,12,3221.585664mp,ex,13,3.45e10mp,nuxy,13,0.2mp,dens,13,3208.826871mp,ex,14,3.45e10mp,nuxy,14,0.2mp,dens,14,3194.279207mp,ex,15,3.45e10mp,nuxy,15,0.2mp,dens,15,3179.924673mp,ex,16,3.45e10mp,nuxy,16,0.2mp,dens,16,3166.445716mp,ex,17,3.45e10mp,nuxy,17,0.2mp,dens,17,3152.555731mp,ex,18,3.45e10mp,nuxy,18,0.2mp,dens,18,3138.312105mp,ex,19,3.45e10mp,nuxy,19,0.2mp,dens,19,3124.795334mp,ex,20,3.45e10mp,nuxy,20,0.2mp,dens,20,3110.7135mp,ex,21,3.45e10mp,nuxy,21,0.2mp,dens,21,3097.080875mp,ex,22,3.45e10mp,nuxy,22,0.2mp,dens,22,3083.186268mp,ex,23,3.45e10mp,nuxy,23,0.2mp,dens,23,3068.968824mp,ex,24,3.45e10mp,nuxy,24,0.2mp,dens,24,3055.612436mp,ex,25,3.45e10mp,nuxy,25,0.2mp,dens,25,3045.857147mp,ex,26,3.45e10mp,nuxy,26,0.2mp,dens,26,3035.174287mp,ex,27,3.45e10mp,nuxy,27,0.2mp,dens,27,3026.696551mp,ex,28,3.45e10mp,nuxy,28,0.2mp,dens,28,3015.795365mp,ex,29,3.45e10mp,nuxy,29,0.2mp,dens,29,3007.710181mp,ex,30,3.45e10mp,nuxy,30,0.2mp,dens,30,3000.513837mp,ex,31,3.45e10mp,nuxy,31,0.2mp,dens,31,2978.611375 mp,ex,32,3.45e10mp,nuxy,32,0.2mp,dens,32,2958.618861mp,ex,33,3.45e10mp,nuxy,33,0.2mp,dens,33,2937.888072mp,ex,34,3.45e10mp,nuxy,34,0.2mp,dens,34,2919.475751mp,ex,35,3.45e10mp,nuxy,35,0.2mp,dens,35,2903.359983 !!6700处mp,ex,36,3.45e10mp,nuxy,36,0.2mp,dens,36,3302.153125 !!可以不用mp,ex,37,3.45e10mp,nuxy,37,0.2mp,dens,37,3302.153125mp,ex,38,3.45e10 !!-700处梁mp,nuxy,38,0.2mp,dens,38,3180.578901mp,ex,39,3.45e10 !!边支点横隔板mp,nuxy,39,0.2mp,dens,39,2868.674818mp,ex,40,3.45e10 !!合拢段横隔板mp,nuxy,40,0.2mp,dens,40,2868.674818mp,ex,41,3.45e10 !!中支点横隔板mp,nuxy,41,0.2mp,dens,41,2757.470588mp,ex,1,3.25e10 !!!!定义墩材料属性mp,nuxy,1,0.2mp,dens,1,2650!!定义实常数编号，面积，IYY，IZZ，宽，高，，RMORE，，抗扭惯距!!主梁截面r,1,11.851,28.52,215.151,16.95,4,, !!直线段rmore,,56.8972r,2,11.862,28.57,215.458,16.95,4.001,, !!截面100处rmore,,56.905r,3,11.871,28.91,215.622,16.95,4.009,,rmore,,57.345r,4,11.903,29.03,215.78,16.95,4.025,,rmore,,57.938r,5,11.932,29.626,215.88,16.95,4.049,,rmore,,58.502r,6,12.043,30.402,217.093,16.95,4.081,,rmore,,59.768r,7,12.199,31.407,218.899,16.95,4.121,,rmore,,61.445r,8,12.441,32.716,221.806,16.95,4.169,,rmore,,63.652r,9,12.673,34.21,224.418,16.95,4.226,,rmore,,66.058r,10,12.932,35.94,227.279,16.95,4.290,,rmore,,68.801r,11,13.221,37.941,230.512,16.95,4.362,,rmore,,71.948r,12,13.534,40.233,233.872,16.95,4.442,,rmore,,75.432r,13,13.843,42.747,237.133,16.95,4.530,,rmore,,79.173r,14,14.213,45.688,241.054,16.95,4.627,,rmore,,83.484r,15,14.598,48.964,245.004,16.95,4.731,,rmore,,88.155r,16,14.979,52.547,248.817,16.95,4.843,,rmore,,93.111r,17,15.393,56.562,252.927,16.95,4.963,,rmore,,98.528r,18,15.842,61.069,257.347,16.95,5.092,,rmore,,104.47r,19,16.293,65.992,261.673,16.95,5.228,,rmore,,110.742r,20,16.791,71.484,266.426,16.95,5.372,,rmore,,117.648r,21,17.303,77.568,271.225,16.95,5.525,, rmore,,124.861r,22,17.858,84.282,276.363,16.95,5.685,, rmore,,132.631r,23,18.464,91.768,281.923,16.95,5.854,, rmore,,141.068r,24,19.072,99.936,287.364,16.95,6.03,, rmore,,149.875r,25,19.524,108.482,291.159,16.95,6.214,, rmore,,158.46r,26,20.084,118.046,295.597,16.95,6.407,, rmore,,167.857r,27,20.536,128.202,298.9,16.95,6.607,, rmore,,177.137r,28,21.148,139.669,303.86,16.95,6.816,, rmore,,187.495r,29,21.626,151.737,307.186,16.95,7.032,, rmore,,197.507r,30,22.07,164.734,310.057,16.95,7.257,, rmore,,207.681r,31,23.541,182.225,323.433,16.95,7.490,, rmore,,223.527r,32,25.066,201.932,336.467,16.95,7.730,, rmore,,241.046r,33,26.871,223.700,351.448,16.95,7.979,, rmore,,257.765r,34,28.707,247.928,365.663,16.95,8.235,, rmore,,275.922r,35,30.533,274.36,378.934,16.95,8.500,, rmore,,294.461r,46,14.58,35.599,238.702,16.95,4,, rmore,,238.702!!横隔板截面!!边支点r,36,35.376,54.393,339.84,16.95,4.00,, rmore,,128.747!!合拢段r,37,35.376,53.405,339.84,16.95,4.00,, rmore,,127.015!!中支点r,38,71.981,454.871,543.871,16.95,8.5,, rmore,,684.565!!主墩截面!!截面1（实心）r,39,39.932,82.876,212.138,8,5,, rmore,,203.709!!截面（1/2空心）r,40,23.863,72.571,168.024,8,5,, rmore,,168.491!!截面3(空心）r,41,14.236,52.366,114.529,8,5,, rmore,,116.391!!边墩截面!!截面1（实心1）r,42,36.113,66.217,177.703,7.7,4.7,, rmore,,165.119!!截面2（空心1/2）r,43,20.753,35.743,99.711,7,4,, rmore,,88.486!!截面3（空心）r,44,9.103,16.082,45.911,6.5,3.5,, rmore,,39.39!!截面4（实心2）r,45,22.673,23.005,79.361,6.5,3.5,, rmore,,61.527!!截面5（1/2）空心2r,49,16,21.958,68.708,6.5,3.5,, rmore,,55.682!!建立第一跨梁节点xl=atan(1.029/80) n,1,0,n,2,2.25,2.25*xln,3,6,6*xln,4,9,9*xln,5,11,11*xln,6,13,13*xl-0.0045 n,7,15,15*xl-0.0135 n,8,17,17*xl-0.023 n,9,19,19*xl-0.038 n,10,21,21*xl-0.062 n,11,23,23*xl-0.092 n,12,25,25*xl-0.1275 n,13,27,27*xl-0.167 n,14,29,29*xl-0.2115 n,15,31,31*xl-0.261 n,16,33,33*xl-0.314 n,17,35,35*xl-0.3715 n,18,37,37*xl-0.435 n,19,39,39*xl-0.502 n,20,41,41*xl-0.5725 n,21,43,43*xl-0.648 n,22,45,45*xl-0.728 n,23,47,47*xl-0.8115 n,24,49,49*xl-0.8995 n,25,51,51*xl-0.9925 n,26,53,53*xl-1.0895 n,27,55,55*xl-1.1905 n,28,57,57*xl-1.325 n,29,59,59*xl-1.433 n,30,61,61*xl-1.5155 n,31,63,63*xl-1.6325 n,32,65,65*xl-1.7535 n,33,67,67*xl-1.879 n,34,69,69*xl-2.007 n,35,71,71*xl-2.1325 n,36,73,73*xl-2.2635 n,37,75,75*xl-2.399 n,38,77,77*xl-2.533 n,39,79,79*xl-2.631xl2=atan(0.7/140)local,11,0,80,80*xl-2.631,0,xl2nsym,x,35,5,39,1 !!复制粱结点从5到39结点编号增加35 csys,0n,75,149.6,0.15852local,12,0,150,0.15852,0,xl2nsym,x,36,40,75,1local,13,0,220,-1.6027,0nsym,x,111,1,111,1csys,0n,500,80,80*xl-2.631n,501,220,-1.6027n,502,360,-1.6148csys,0 !!返回普通坐标!!建立墩结点!!PM112边墩截面n,300,0,-2.165 !!(实心）2米长n,301,0,-4.365n,302,0,-9.365 !!（1/2空心）5M长n,303,0,-13.365n,304,0,-17.365n,305,0,-21.365n,306,0,-24.93n,307,0,-28.93n,308,0,-30.63!!PM113主敦截面n,309,80,0.5-6.665-0.8n,310,80,0.5-3.5-6.665 !!(实心)3.5mn,311,80,0.5-8.5-6.665 !!(1/2空心）5mn,312,80,0.5-12.5-6.665 !!(空心）4Mn,313,80,0.5-16.5-6.665 !!n,314,80,0.5-18.594-6.665n,315,80,0.5-22.594-6.665n,316,80,0.5-24.594-6.665+0.4!(实心）2m!!pm114主墩截面n,350,220,0.5-6.665-0.8 !n,351,220,0.5-3.5-6.665 !!(1/2空心)5m n,352,220,0.5-8.5-6.665 !!(空心）5mn,353,220,0.5-12.5-6.665 !!(空心）6.064M n,354,220,0.5-16.5-6.665 !!(1/2空心）4M n,355,220,0.5-19.294-6.665 !!(实心）2M n,356,220,0.5-23.294-6.665n,357,220,0.5-25.294-6.665+0.4local,13,0,220,-1.6027,0nsym,x,17,300,316,1csys,0!!生成边跨1mat,39real,36e,1,2mat,38real,46e,2,3mat,2real,1e,3,4e,4,5mat,2real,2e,5,6*do,i,3,35,1mat,ireal,ie,3+i,4+i*enddo*do,i,3,35,1mat,ireal,ie,38+i,39+i*enddo*do,i,3,35,1 mat,ireal,ie,74+i,75+i *enddo*do,i,3,35,1 mat,ireal,ie,114+i,115+i *enddo*do,i,3,35,1 mat,ireal,ie,149+i,150+i *enddo*do,i,3,35,1 mat,ireal,ie,185+i,186+i *enddomat,41 real,38e,39,500mat,41 real,38e,500,74mat,2real,2e,41,40mat,2real,1e,40,75mat,40 real,37 e,75,111mat,2 real,1 e,111,76mat,2 real,2 e,76,77mat,41 real,38 e,110,501mat,41 real,38 e,501,221mat,2 real,2 e,188,187mat,2 real,1 e,187,222mat,41 real,37 e,222,186mat,2 real,1 e,186,151mat,2 real,2 e,151,152mat,41 real,38 e,185,502mat,41 real,38 e,502,150mat,39 real,36 e,112,113mat,38 real,46 e,113,114mat,2 real,1e,114,115 e,115,116mat,2 real,2e,116,117!!建立桥墩!!边墩1 mat,1 real,42 e,300,301mat,1 real,43 e,301,302mat,1 real,44 e,302,303mat,1 real,44e,303,304mat,1 real,44 e,304,305mat,1 real,44 e,305,306mat,1 real,49 e,306,307mat,1 real,45 e,307,308!!主墩1 mat,1 real,39 e,309,310mat,1 real,40 e,310,311mat,1 real,41 e,311,312mat,1 real,41 e,312,313mat,1 real,41 e,313,314mat,1 real,40 e,314,315mat,1 real,39 e,315,316!!主墩2 mat,1 real,39 e,350,351mat,1 real,40 e,351,352mat,1 real,41 e,352,353mat,1 real,41 e,353,354mat,1 real,41 e,354,355mat,1 real,40 e,355,356mat,1 real,39 e,356,357!!主墩3 mat,1 real,39 e,326,327mat,1 real,40 e,327,328mat,1 real,41 e,328,329mat,1 real,41 e,329,330mat,1 real,41 e,330,331mat,1 real,40 e,331,332mat,1 real,39 e,332,333!!边墩2 mat,1 real,42 e,317,318mat,1 real,43 e,318,319mat,1 real,44 e,319,320mat,1 real,44 e,320,321mat,1 real,44 e,321,322mat,1real,44e,322,323mat,1real,49e,323,324mat,1real,45e,324,325!!添加质量惯距!!两米段质量惯距r,100,,,,1293348.4 !!100米处和直线段的质量惯距r,101,,,,1296019.6r,102,,,,1297493r,103,,,,1301181.8r,104,,,,1311723r,105,,,,1326622r,106,,,,1348967r,107,,,,1370728r,108,,,,1395061r,109,,,,1422801r,110,,,,1452757r,111,,,,1483258r,112,,,,1519733r,113,,,,1558030r,114,,,,1597229r,115,,,,1640292r,116,,,,1687605r,117,,,,1736625r,118,,,,1790923r,119,,,,1848602r,120,,,,1911418r,121,,,,1980562r,122,,,,2052690r,123,,,,2118097r,124,,,,2192307r,125,,,,2263641r,126,,,,2350704r,127,,,,2432292r,128,,,,2516392r,129,,,,2679987r,130,,,,2853514r,131,,,,3048284r,132,,,,3252032r,133,,,,3462506!!边跨直线3米段r,148,,,,1293348.4*3/2!!-700处3.75米段的质量惯距r,134,,,,2725866.2!!边支点横隔r,135,,,,2246142.5!!合龙段横隔r,136,,,,833679/2!!中支点横隔r,137,,,,5292760!!添加边墩质量惯距从上到下!!变截面实心2米段r,138,,,,1163498!!1/2空心5米段r,139,,,,1794766!!空心段4米r,140,,,,657211!!1/2空心4米段r,141,,,,1085079!!实心2米段r,142,,,,1064567!!添加主墩质量惯性距从上到下!!实心3米段r,143,,,,2345361!!1/2空心5米段r,144,,,,2869095!!空心4米段r,145,,,,1769087!!1/2空心4米段r,146,,,,2869095*4/5!!实心2米段r,147,,,,2345361*2/3!!在结点处加入质量惯性距!!边跨合龙段!左边边跨type,2real,135e,2type,2real,134e,3type,2real,148e,4type,2real,100e,5!!右边边跨type,2real,135e,113type,2real,134e,114type,2real,148e,115type,2real,100e,116!!对第一个主跨的循环*do,i,6,39,1type,2real,94+ie,i*enddo!!对第二个主跨的循环*do,i,41,74,1type,2real,59+ie,i*enddo!!对第3个循环*do,i,77,110,1type,2real,33+ie,i*enddo!!对第4个循环*do,i,188,221,1 type,2real,(-88)+ie,i*enddo!!对第5个循环*do,i,152,185,1 type,2real,i-52e,i*enddo!!对第6个循环*do,i,117,150,1 type,2real,(-17)+ie,i*enddo!!添加质量惯距到桥墩!!左边墩type,2real,138e,301type,2real,139e,302type,2real,140e,303type,2real,140e,304type,2real,140e,305type,2real,140e,306type,2 real,141 e,307type,2 real,142 e,308!!右边墩type,2 real,138 e,318type,2 real,139 e,319type,2 real,140 e,320type,2 real,140 e,321type,2 real,140 e,322type,2 real,140 e,323type,2 real,141 e,324type,2real,142e,325!!左边主墩type,2real,143e,310type,2real,144e,311type,2real,145e,312type,2real,145e,313type,2r,400,,,,1769087*3/4 e,314type,2real,146e,315type,2real,147e,316!!中间主墩type,2real,143e,351type,2real,144e,352type,2real,145e,353type,2real,145e,354type,2r,400,,,,1769087*3/4 e,355type,2real,146e,356type,2real,147e,357!!右边主墩type,2real,143e,327type,2real,144e,328type,2real,145e,329type,2real,145e,330type,2r,400,,,,1769087*3/4e,331type,2real,146e,332type,2real,147e,333!!添加横隔板处质量惯性距!!中支点type,2real,137e,500type,2real,137e,501type,2real,137e,502!!合龙段1type,2real,136e,75type,2real,136e,111type,2r,411,,,,1293348.4*3/10 e,40type,2r,412,,,,1293348.4*3/10 e,76!!合龙段2type,2real,136e,222type,2real,136e,186type,2r,411,,,,1293348.4*3/10 e,187type,2r,412,,,,1293348.4*3/10 e,151!!偶合结点cp,1,uy,1,300cp,2,uz,1,300cp,3,rotx,1,300cp,4,uy,309,500cp,5,uz,309,500cp,6,rotx,309,500cp,7,ux,350,501cp,8,uy,350,501cp,9,uz,350,501cp,10,rotx,350,501 cp,11,roty,350,501cp,12,uy,326,502cp,13,uz,326,502cp,14,rotx,326,502cp,15,uy,317,112cp,16,uz,317,112cp,17,rotx,317,112!!!!加约束d,308,all,all,0d,316,all,all,0d,357,all,all,0d,333,all,all,0d,325,all,all,0allselfinish!!!!求解/soluantype,2 !模态分析acel,,9.8 !加载重力modopt,subsp,20 !提取前30阶模态mxpand,20,,,0LUMPM,1solvefinish/post1set,list。

ansys命令流中文说明KB、KE: 待划分线的定向关键点起始、终止号SECNUM: 截面类型号u SECPLOT,SECID,MESHKEY 画梁截面的几何形状及网格划分SECID:由SECTYPE命令分配的截面编号MESHKEY：0：不显示网格划分1：显示网格划分u /ESHAPE, SCALE 按看似固体化分的形式显示线、面单元SCALE: 0:简单显示线、面单元1：使用实常数显示单元形状u esurf, xnode, tlab, shape 在已存在的选中单元的自由表面覆盖产生单元xnode: 仅为产生surf151 或surf152单元时使用tlab: 仅用来生成接触元或目标元top 产生单元且法线方向与所覆盖的单元相同，仅对梁或壳有效，对实体单元无效Bottom产生单元且法线方向与所覆盖的单元相反，仅对梁或壳有效，对实体单元无效Reverse 将已产生单元反向Shape: 空与所覆盖单元形状相同Tri 产生三角形表面的目标元注意：选中的单元是由所选节点决定的，而不是选单元，如同将压力加在节点上而不是单元上u Nummrg,label,toler, Gtoler,action,switch 合并相同位置的itemlabel: 要合并的项目node: 节点， Elem,单元，kp: 关键点（也合并线，面及点）mat: 材料，type: 单元类型，Real: 实常数cp：耦合项，CE：约束项，CE: 约束方程，All：所有项toler: 公差Gtoler：实体公差Action: sele 仅选择不合并空合并switch: 较低号还是较高号被保留（low, high）注意：可以先选择一部分项目，再执行合并。

如果多次发生合并命令，一定要先合并节点，再合并关键点。

合并节点后，实体荷载不能转化到单元，此时可合并关键点解决问题。

u Lsel, type, item, comp, vmin, vmax, vinc, kswp 选择线type: s 从全部线中选一组线r 从当前选中线中选一组线a 再选一部线附加给当前选中组aunoneu(unselect)inve: 反向选择item: line 线号loc 坐标length 线长comp: x,y,zkswp: 0 只选线1 选择线及相关关键点、节点和单元u Nsel, type, item, comp, vmin, vmax, vinc, kabs 选择一组节点为下一步做准备Type: S: 选择一组新节点（缺省）R: 在当前组中再选择A: 再选一组附加于当前组U: 在当前组中不选一部分All: 恢复为选中所有None: 全不选Inve: 反向选择Stat: 显示当前选择状态Item: loc: 坐标node: 节点号Comp: 分量Vmin,vmax,vinc: ITEM范围Kabs: “0” 使用正负号“1”仅用绝对值u NSLL,type, nkey 选择与所选线相联系的节点u nsla, type, nkey: 选择与选中面相关的节点type：s 选一套新节点r 从已选节点中再选a 附加一部分节点到已选节点u 从已选节点中去除一部分nkey: 0 仅选面内的节点1 选所有和面相联系的节点（如面内线，关键点处的节点）u esel, type, item, comp, vmin, vmax, vinc, kabs 选择一组单元Type: S: 选择一组单元（缺省）R: 在当前组中再选一部分作为一组A: 为当前组附加单元U: 在当前组中不选一部分单元All: 选所有单元None: 全不选Inve: 反向选择当前组（？）Stat: 显示当前选择状态Item： Elem: 单元号Type: 单元类型号Mat: 材料号Real: 实常数号Esys: 单元坐标系号u ALLSEL, LABT, ENTITY 选中所有项目LABT: ALL: 选所有项目及其低级项目BELOW: 选指定项目的直接下属及更低级项目ENTITY: ALL: 所有项目（缺省）VOLU:体高级AREA:面LINE :线KP:关键点ELEM:单元NODE:节点低级u Tshap,shape 定义接触目标面为2D、3D的简单图形Shape: line:直线Arc:顺时针弧Tria:3点三角形Quad:4点四边形………….2.6 根据需要耦合某些节点自由度u cp, nset, lab,,node1,node2,……node17nset: 耦合组编号lab: ux,uy,uz,rotx,roty,rotznode1-node17: 待耦合的节点号。

!****************************************************************************** ***********************! case2:无偏载(以跨径布置30m+40m+30m,桥宽8.5为例）! 上海城市设计研究院L1+L2+L3预应力混凝土曲线连续梁桥结构分析! 两端为抗扭支座，中间支座为点铰支座! 每次要记得修改横隔梁的参数，即Mass21单元的实常数!****************************************************************************** ***********************FINI/CLE/prep7!DEFINE THE ELEMENTARY PARAMETERS*DIM,L,ARRAY,10*DIM,H,ARRAY,10*DIM,CITA,ARRAY,10!*****以下参数均可修改***************N=3 !跨数L(1)=30 !第一跨L(2)=40 !第二跨L(3)=30 !第三跨e1=1.25 !1#墩处内支座到中心线的间距e2=1.25 !1#墩处外支座到中心线的间距e3=0 !2#墩处的支座偏心距（正的表示外偏）e4=0 !3#墩处的支座偏心距e5=1.25 !4#墩处内支座到中心线的间距e6=1.25 !4#墩处外支座到中心线的间距R=10000 !曲线桥半径H0=1.0 !梁底到截面形心处的高度M=16146 !mass21单元质量J=27246.38 !mass21单元转动惯量!*************************************LL=0.0*DO,I,1,NLL=LL+L(I)CITA(I)=L(I)/R/3.1415925*180*ENDDOCITA0=LL/R/3.1415925*180LOCAL,11,1,0,0,0,0,270,0CSYS,11!DEFINE THE NODES OF BRIDGEN, 1, R, -179.9999, H0N, L(1)+1, R, -179.9999+CITA(1), H0N, L(1)+L(2)+1, R, -179.9999+CITA(1)+CITA(2), H0 N, L(1)+L(2)+L(3)+1, R, -179.9999+CITA0, H0FILL,1,L(1)+1FILL,L(1)+1,L(1)+L(2)+1FILL,L(1)+L(2)+1,L(1)+L(2)+L(3)+1!DEFINE THE REFERENCE POINT OF MAIN DECKN,2000,0,0,0!***************************************************************** !DEFINE THE NODES OF RIGID BEAM OF MAIN GIRDERN, 2001, R-e1, -179.9999, H0N, 2002, R+e2, -179.9999, H0N, 2003, R+e3, -179.9999+CITA(1), H0N, 2004, R+e4, -179.9999+CITA(1)+CITA(2), H0N, 2005, R-e5, -179.9999+CITA0, H0N, 2006, R+e6, -179.9999+CITA0, H0NROTA T,ALL!*****************************************************! 定义主梁单元材料、几何参数! 混凝土标号为C40!**************梁段截面几何特性*******************ET,1,BEAM4MP,EX , 1, 3.25E+10MP,NUXY, 1, 0.2000MP,DENS, 1, 3950.50MP,ALPX, 1, 1.00E-05R,1,4.39129,2.4428,20.7089,8.5,2.0,, !跨中梁断面RMORE ,,5.0388,,,,,!**************刚臂截面几何特性*******************! 增设抗扭或偏心支座时采用ET,3,BEAM4MP,EX , 3, 3.25E+10MP,NUXY, 3, 0.2000MP,DENS, 3, 0.0MP,ALPX, 3, 1.0E-08R,3,100,1000,1000,0.5,0.5,,RMORE ,,1000,,,,,!****************生成主梁单元**********************TYPE,1MA T,1REAL,1*DO,I,1,LL,1E,I,I+1,2000*ENDDO!*********************************************************** ! 生成主梁刚臂单元!*********************************************************** TYPE,3MA T,3REAL,3E,2001,1E,1,2002*IF,e3,GT,0.0,THENE,2003,L(1)+1*ELSENSEL,U, , ,2003*ENDIF*IF,e4,GT,0.0,THENE,2004,L(1)+L(2)+1*ELSENSEL,U, , ,2004*ENDIFE,2005,LL+1E,LL+1,2006!**************************************************! 支墩处的横隔梁采用Mass21单元来模拟!**************************************************ET,4,MASS21R,100, M ,M ,M ,J ,,,TYPE,4REAL,100E,1E,L(1)+1E,L(1)+L(2)+1E,LL+1!****施加约束条件**********D,2001,UX,,,,,UY,UZD,2002,UZ*IF,e3,GT,0.0,THEND,2003,,,,,,,UZ*ELSED,L(1)+1,,,,,,,UZ*ENDIF*IF,e4,GT,0.0,THEND,2004,,,,,,,UZ*ELSED,L(1)+L(2)+1,,,,,,,UZ*ENDIFD,2005,UX,,,,,,UZD,2006,UZ!********************************************************** ! 对桥梁桥面各节点逐点加载!********************************************************** /SOLUANTYPE,0 ! 静力分析ACEL,0,0,0K=1*DO,I,1,LL+1,1TIME,KFDELE,ALL,ALLF,I,FZ,-1000SOLVEK=K+1*ENDDO!******定义各片纵梁的竖向挠度、弯矩、扭矩、剪力的包络图******** *DIM,AMAX,ARRAY,LL+1*DIM,AMIN,ARRAY,LL+1*DIM,JZMAX,ARRAY,LL+1*DIM,JZMIN,ARRAY,LL+1*DIM,DISP1,ARRAY,LL+1,LL+1*DIM,MZ1,ARRAY,LL,LL+1*DIM,MX1,ARRAY,LL,LL+1*DIM,QY1,ARRAY,LL,LL+1*DIM,DISP1MAX,ARRAY,LL+1*DIM,DISP1MIN,ARRAY,LL+1*DIM,MZ1MAX,ARRAY,LL*DIM,MZ1MIN,ARRAY,LL*DIM,MX1MAX,ARRAY,LL*DIM,MX1MIN,ARRAY,LL*DIM,QY1MAX,ARRAY,LL*DIM,QY1MIN,ARRAY,LL*DIM,KK,ARRAY,LL+1*DIM,REACTION,ARRAY,6,LL+1*DIM,REACTIONMAX,ARRAY,6*DIM,REACTIONMIN,ARRAY,6*DO,I,1,LL+1,1/POST1SET,I!*****************竖向位移***************DO,J,1,LL+1,1*GET,DISP1(J,I),NODE,J,U,Y*ENDDO!*****************竖向弯矩Mz************DO,J,1,LL,1*GET,MZ1(J,I),ELEM, J, SMISC,6*ENDDO!*****************扭矩Mx************DO,J,1,LL,1*GET,MX1(J,I),ELEM, J, SMISC,4*ENDDO!*****************剪力Qy************DO,J,1,LL,1*GET,QY1(J,I),ELEM, J, SMISC,2*ENDDO!*****************支座反力************GET,REACTION(1,I),NODE, 2001, RF,FZ*GET,REACTION(2,I),NODE, 2002, RF,FZ*IF,e3,GT,0.0,THEN*GET,REACTION(3,I),NODE, 2003, RF,FZ*ELSE*GET,REACTION(3,I),NODE, L(1)+1, RF,FZ*ENDIF*IF,e4,GT,0.0,THEN*GET,REACTION(4,I),NODE, 2004, RF,FZ*ELSE*GET,REACTION(4,I),NODE, L(1)+L(2)+1, RF,FZ *ENDIF*GET,REACTION(5,I),NODE, 2005, RF,FZ*GET,REACTION(6,I),NODE, 2006, RF,FZKK(I)=I*ENDDO!**************************公路I级汽车活载影响线加载效应计算*******************************! 车道宽度假定为3.75m! 车道布置：横向NN=2车道，不考虑横向折减系数;跨径小于150m，不需要考虑纵向折减。

！分离式模型,1/4模型分析,力加载,位移收敛准则,收敛误差设为1.5%！关闭压碎,KEYYOPT(1)=0,KEYYOPT(7)=1FINISH$/CLEAR$/CONFIG,NRES,2000$/PREP7！1.定义单元与材料性质ET,1,SOLID65,,,,,,,1$ET,2,LINK8MP,EX,1,13585$MP,PRXY,1,0.2FC=14.3$FT=1.43TB,CONCR,1$TBDATA,,0.5,0.95,FT,-1TB,MISO,1,,11TBPT,,0.0002,FC*0.19$TBPT,,0.0004,FC*0.36$TBPT,,0.0006,FC*0.51TBPT,,0.0008,FC*0.64$TBPT,,0.0010,FC*0.75$TBPT,,0.0012,FC*0.84TBPT,,0.0014,FC*0.91$TBPT,,0.0016,FC*0.96$TBPT,,0.0018,FC*0.99TBPT,,0.002,FC$TBPT,,0.0033,FC*0.85MP,EX,2,2.0E5$MP,PRXY,2,0.3TB,BISO,2$TBDATA,,300.0PI=ACOS(-1)R,1,0.25*PT*22*22$R,2,0.25*PI*22*22/2$R,3,0.25*PI*10*10$R,4,0.25*PI*10*10/2！2.创建几何模型BLC4,,,150/2,300/2,2000/2*DO,I,1,9$WPOFF,,,100$VSBW,ALL$*ENDOOWPCSYS,-1$WPOFF,,,50$VSBW,ALLWPCSYS,-1$WPOFF,,-90$WPOFF,,,30$VSBW,ALLWPOFF,,,240$VSBW,ALLWPCSYS,-1$WPOFF,30$WPROTA,,,90$VSBW,ALLWPCSYS,-1！3.划分钢筋网络ELEMSIZ=50LSEL,S,LOC,X,30$LSEL,R,LOC,Y,30CM,ZJ,LINE$LATT,2,1,2$LESIZE,ALL,ELEMSIZLSEL,S,LOC,X,75$LSEL,R,LOC,Y,30CM,ZJB,LINE$LATT,2,2,2$LESIZE,ALL,ELEMSIZLSEL,S,LOC,X,30$LSET,R,LOC,Y,270CM,JLJ,LINE$LATT,2,3,2$LESIZE,ALL,ELEMSIZLSEL,S,TAN1,Z$LSEL,R,LOC,Y,30,270LSEL,R,LOC,X,30,70$LSEL,U,LOC,Z,50CM,GJ,LINE$LATT,2,3,2$LESIZE,ALL,ELEMSIZLSEL,S,LOC,Z,0$LSET,R,LOC,Y,30,270LSEL,R,LOC,X,30,70$CM,GJB,LINE$LATT,2,4,2$LESIZE,ALL,ELEMSIZ$LSEL,ALL CMSEL,S,ZJ$CMSEL,A,ZJB$CMSEL,A,JLJ$CMSEL,A,GJ$CMSEL,A,GJB$CM,GJ,LINE LMESH,ALL$LSEL,ALL!/ESHAPE,1$EPLOT!4.划分混凝土网格V ATT,1,,1$MSHKEY,1$ESIZE,ELEMSIZ$VMESH,ALL$ALLSEL,ALL!5.施加荷载和约束LSEL,S,LOC,Y,0$LSEL,R,LOC,Z,900DL,ALL,UYASEL,S,LOC,Z,0$DA,ALL,SYMMASEL,S,LOC,X,75$DA,ALL,SYMMP0=180000$Q0=P0/150/100ASEL,S,LOC,Z,0,50$ASEL,R,LOC,Y,300SFA,ALL,1,PRES,Q0$ALLSEL,ALL!6.求解控制设置与求解/SOLU$ANTYPE,0$NSUBST,100$OUTRES,ALL,ALL$AUTOS,ON NEQIT,50CNVTOL,U,,0.015SOLVE!7.进图POST1查看结果/POST1$SET,LAST$PLDISP,1ESEL,S,TYPE,,2ETABLE,SAXL,LS,1$PLLS,SAXL,SAXLESEL,S,TYPE,,1/DEVICE,VECTOR,ON$PLCRACK!8.进入时程后处理查看结果/POST26NOSL,2,205,U,Y$PROD,3,2,,,,,,-1PROD,4,1,,,,,,P0/1000XV AR,3$PLV AR,4。