ansys桥梁模型建立

本章介绍桥梁结构的模拟分析。

桥梁是一种重要的工程结构，精确分析桥梁结构在各种受力方式下的响应有较大的工程价值。

模拟不同类型的桥梁需要不同的建模方法，分析内容包括静力分析、动荷载响应分析、施工过程分析等等。

在本章中着重介绍桁架桥、刚架桥和斜拉桥三种类型桥梁。

内容 提要 第6章 ANSYS 桥梁工程应用实例分析本章重点结构分析具体步骤结构静力分析 桁架结构建模方法 结构模态分析本章典型效果图6.1 引言ANSYS通用有限元软件在土木工程应用分析中可发挥巨大的作用。

我们用它来分析桥梁工程结构,可以很好的模拟各种类型桥梁的受力、施工工况、动荷载的耦合等。

ANSYS程序有丰富的单元库和材料库,几乎可以仿真模拟出任何形式的桥梁。

静力分析中,可以较精确的反应出结构的变形、应力分布、内力情况等；动力分析中,也可精确的表达结构的自振频率、振型、荷载耦合、时程响应等特性。

利用有限元软件对桥梁结构进行全桥模拟分析,可以得出较准确的分析结果。

本章介绍桥梁结构的模拟分析。

作为一种重要的工程结构,桥梁的精确分析具有较大的工程价值。

桥梁的种类繁多,如梁桥、拱桥、钢构桥、悬索桥、斜拉桥等等,不同类型的桥梁可以采用不同的建模方法。

桥梁的分析内容又包括静力分析、施工过程模拟、动荷载响应分析等。

可以看出桥梁的整体分析过程比较复杂。

总体上来说,主要的模拟分析过程如下:(1) 根据计算数据,选择合适的单元和材料,建立准确的桥梁有限元模型。

(2) 施加静力或者动力荷载,选择适当的边界条件。

(3) 根据分析问题的不同,选择合适的求解器进行求解。

(4) 在后处理器中观察计算结果。

(5) 如有需要,调整模型或者荷载条件,重新分析计算。

桥梁的种类和分析内容众多,不同类型桥梁的的分析过程有所不同,分析侧重点也不一样。

在这里仅仅给出大致的分析过程,具体内容还要看具体实例的情况。

6.2 典型桥梁分析模拟过程6.2.1 创建物理环境建立桥梁模型之前必须对工作环境进行一系列的设置。

ansys桥梁建模流程咱就来说说ANSYS桥梁建模的流程哈。

一、前期准备。

咱得先对要建的桥梁有个基本的了解。

比如说，这桥是啥类型的呀，是梁桥呢，还是拱桥之类的。

这就好比你要画一个人的画像，得先知道画的是男是女、是老是少一样。

还有哦，桥梁的尺寸得清楚，像桥的长度、宽度、高度这些数据可不能马虎。

这就像是盖房子，你得知道房子的长宽高才能动手不是？另外呢，材料的特性也很重要。

不同的材料在ANSYS里的参数设置可不一样，就像不同的食材做菜的方法不一样。

比如钢材和混凝土，它们的弹性模量、泊松比这些参数都要提前查好或者根据实际情况确定下来。

二、几何建模。

这一步就像是搭积木的第一步，先把桥梁的形状搭出来。

在ANSYS里呢，我们可以用各种工具来创建桥梁的几何模型。

如果是比较规则的形状，像那种直的梁桥，可能用一些基本的几何形状创建工具就可以搞定啦。

比如说，创建一些长方体来表示桥墩，创建一些薄板来表示桥面板。

但要是桥梁的形状比较复杂，比如说那种弯弯的拱桥，那可能就得费点心思啦。

这时候呢，可能就需要用一些曲线绘制的功能，像样条曲线之类的，来把桥拱的形状准确地画出来。

在创建几何模型的时候，可一定要细心，不然一个小地方错了，后面可就麻烦大了。

就像搭积木的时候，一块积木放错了位置，可能整个建筑就不稳当了。

三、划分网格。

网格划分就像是给我们的桥梁模型穿上一件小格子衣服。

这一步可重要了呢。

网格的大小和形状会影响到后面计算的精度和速度。

如果网格划分得太粗，那计算结果可能就不太准确，就像你用大网捕鱼，可能会漏掉很多小鱼一样。

但是如果网格划分得太细，那计算起来就会超级慢，就像小蚂蚁搬家，一点点地挪，可费劲了。

所以呀，要根据桥梁的结构特点和计算的要求来合理地划分网格。

比如说，在桥梁结构应力比较集中的地方，像桥墩和桥面板的连接处，网格就可以划分得细一点，其他地方可以稍微粗一点。

四、定义材料属性。

前面咱们不是知道了材料的特性嘛，这时候就派上用场啦。

连续梁桥ansys命令流建模求解!!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,7,3284.137255 mp,ex,8,3.45e10mp,nuxy,8,0.2mp,dens,8,3271.802136 mp,ex,9,3.45e10mp,nuxy,9,0.2mp,dens,9,3260.41903 mp,ex,10,3.45e10mp,nuxy,10,0.2mp,dens,10,3248.193657 mp,ex,11,3.45e10mp,nuxy,11,0.2mp,dens,11,3235.117644 mp,ex,12,3.45e10mp,nuxy,12,0.2mp,dens,12,3221.585664 mp,ex,13,3.45e10mp,nuxy,13,0.2mp,dens,13,3208.826871 mp,ex,14,3.45e10mp,nuxy,14,0.2mp,dens,14,3194.279207 mp,ex,15,3.45e10mp,nuxy,15,0.2mp,dens,15,3179.924673 mp,ex,16,3.45e10mp,nuxy,16,0.2mp,dens,16,3166.445716 mp,ex,17,3.45e10mp,nuxy,17,0.2mp,dens,17,3152.555731 mp,ex,18,3.45e10mp,nuxy,18,0.2mp,dens,18,3138.312105 mp,ex,19,3.45e10mp,nuxy,19,0.2mp,dens,19,3124.795334 mp,ex,20,3.45e10mp,nuxy,20,0.2mp,dens,20,3110.7135 mp,ex,21,3.45e10mp,nuxy,21,0.2mp,dens,21,3097.080875 mp,ex,22,3.45e10mp,nuxy,22,0.2mp,dens,22,3083.186268 mp,ex,23,3.45e10mp,nuxy,23,0.2mp,dens,23,3068.968824 mp,ex,24,3.45e10mp,nuxy,24,0.2mp,dens,24,3055.612436 mp,ex,25,3.45e10mp,nuxy,25,0.2mp,dens,25,3045.857147 mp,ex,26,3.45e10mp,nuxy,26,0.2mp,dens,26,3035.174287 mp,ex,27,3.45e10mp,nuxy,27,0.2mp,dens,27,3026.696551 mp,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,31,2978.611375mp,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r,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,,r,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,,r,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,,r,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xlatan1.029/80n,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-0.8115n,24,49,49*xl-0.8995n,25,51,51*xl-0.9925n,26,53,53*xl-1.0895n,27,55,55*xl-1.1905n,28,57,57*xl-1.325n,29,59,59*xl-1.433n,30,61,61*xl-1.5155n,31,63,63*xl-1.6325n,32,65,65*xl-1.7535n,33,67,67*xl-1.879n,34,69,69*xl-2.007n,35,71,71*xl-2.1325n,36,73,73*xl-2.2635n,37,75,75*xl-2.399n,38,77,77*xl-2.533n,39,79,79*xl-2.631xl2atan0.7/140local,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,-21.365 n,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5mn,352,220,0.5-8.5-6.665!!空心)5mn,353,220,0.5-12.5-6.665 !!空心)6.064Mn,354,220,0.5-16.5-6.665!!1/2空心)4Mn,355,220,0.5-19.294-6.665!!实心)2Mn,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,3,35,1 mat,ireal,ie,3+i,4+i*enddo*do,i,3,35,1 mat,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,41real,38e,39,500 mat,41real,38e,500,74 mat,2real,2 e,41,40 mat,2 real,1 e,40,75 mat,40 real,37 e,75,111 mat,2 real,1 e,111,76 mat,2 real,2 e,76,77 mat,41 real,38 e,110,501 mat,41 real,38 e,501,221 mat,2 real,2e,188,187 mat,2 real,1 e,187,222 mat,41 real,37 e,222,186 mat,2 real,1 e,186,151 mat,2 real,2 e,151,152 mat,41 real,38 e,185,502 mat,41 real,38 e,502,150 mat,39 real,36 e,112,113mat,38 real,46 e,113,114 mat,2 real,1 e,114,115 e,115,116 mat,2 real,2 e,116,117 !!建立桥墩!!边墩1 mat,1 real,42 e,300,301 mat,1 real,43 e,301,302 mat,1 real,44 e,302,303 mat,1e,303,304 mat,1 real,44 e,304,305 mat,1 real,44 e,305,306 mat,1 real,49 e,306,307 mat,1 real,45 e,307,308 !!主墩1 mat,1 real,39 e,309,310 mat,1 real,40 e,310,311 mat,1e,311,312 mat,1 real,41 e,312,313 mat,1 real,41 e,313,314 mat,1 real,40 e,314,315 mat,1 real,39 e,315,316 !!主墩2 mat,1 real,39 e,350,351 mat,1 real,40 e,351,352 mat,1e,352,353 mat,1 real,41 e,353,354 mat,1 real,41 e,354,355 mat,1 real,40 e,355,356 mat,1 real,39 e,356,357 !!主墩3 mat,1 real,39 e,326,327 mat,1 real,40 e,327,328 mat,1e,328,329 mat,1 real,41 e,329,330 mat,1 real,41 e,330,331 mat,1 real,40 e,331,332 mat,1 real,39 e,332,333 !!边墩2 mat,1 real,42 e,317,318 mat,1 real,43 e,318,319 mat,1e,319,320mat,1real,44e,320,321mat,1real,44e,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,,,,1301181.8 r,104,,,,1311723 r,105,,,,1326622 r,106,,,,1348967 r,107,,,,1370728 r,108,,,,1395061 r,109,,,,1422801 r,110,,,,1452757 r,111,,,,1483258 r,112,,,,1519733 r,113,,,,1558030 r,114,,,,1597229 r,115,,,,1640292 r,116,,,,1687605 r,117,,,,1736625 r,118,,,,1790923 r,119,,,,1848602 r,120,,,,1911418 r,121,,,,1980562 r,122,,,,2052690 r,123,,,,2118097 r,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real,135 e,2 type,2 real,134 e,3 type,2 real,148 e,4 type,2 real,100 e,5!!右边边跨type,2 real,135 e,113 type,2 real,134 e,114 type,2 real,148 e,115real,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,41,74,1 type,2real,59+ie,i*enddo!!对第3个循环*do,i,77,110,1 type,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,301real,139 e,302 type,2 real,140 e,303 type,2 real,140 e,304 type,2 real,140 e,305 type,2 real,140 e,306 type,2 real,141 e,307 type,2 real,142 e,308!!右边墩real,138 e,318 type,2 real,139 e,319 type,2 real,140 e,320 type,2 real,140 e,321 type,2 real,140 e,322 type,2 real,140 e,323 type,2 real,141 e,324 type,2e,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,2e,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,2e,357!!右边主墩type,2real,143e,327type,2real,144e,328type,2real,145e,329type,2real,145e,330type,2r,400,,,,1769087*3/4 e,331type,2real,146e,332type,2e,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*3/10e,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,309,500 cp,6,rotx,309,500 cp,7,ux,350,501 cp,8,uy,350,501 cp,9,uz,350,501 cp,10,rotx,350,501 cp,11,roty,350,501 cp,12,uy,326,502 cp,13,uz,326,502 cp,14,rotx,326,502 cp,15,uy,317,112 cp,16,uz,317,112 cp,17,rotx,317,112 加约束d,308,all,all,0 d,316,all,all,0 d,357,all,all,0 d,333,all,all,0 d,325,all,all,0 allselfinish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。

在桥梁用ansys建立模型时，可参照以下建议的单元进行桥桑模型的建立.L梁（配筋）单元：桥墩.箱梁、纵横梁°2、板无（配筋）单元：桥面系烧。

3、冥体（配筋）单元：桥議系烧、基础结构。

4、拉杆单元：拱桥的系杆、吊杆.5、拉寒单元：斜拉桥的寒、想索桥的钢丝龜。

6、演紧单元：察力控制、螺栓柳钉楚接.7、连接单元：支座、堆基。

连接部分解决方法：ansys在解决桥梁不同的连楼部位时可遶用如下的方法：1、C ombin7. Co<nbin40. LinklL Combin52. Ccnbin38禅簧（阻尼、问陳元）：可爲来模拟支座、媚瓠拉杆等桥梁部使。

2、艮紧单元可解决螺栓、紳钉连楼的问題&3、二力杆拉杆、索可解决拉索问题.4、锅合与约束方稚可解决梁与塔横梁的边界妁束关系。

5、接触单元如Contiwtl52可模拟•滑动支座、销接等需件的真冥情况。

常见桥梁發触问題：U淸动苣接：点点接離2、绑走這接：点面接触3、辕动匹接：面面接触基础的处理方式：U基础平台与桩基：用实体模型、预应力配筋2、基础与岩土系统：祢限区域实体模型、预应力配筋桥梁中常见的模型可以用相应的草元1、刚构桥.拱桥：梁与杆单元姐合模型2、钢管跄：复合竄面梁模型3、连续梁：梁模型4、料拉桥.患既桥：梁、板売、裳或杆单元绘合模型5、立交桥：娈体墩、板无桥面和加强梁混合模型6、局篩详纽计算：实体（考虑配筋〉或板模型，以便考虑模型细节符征.如结构尺寸构造側角、厚薄或粗细过度、凹凸却其配筋k.9.-70/prep7 et. l.beiiml et.2 JinklOet.3.shell63r.1.2...1.2r.2. •mp.ex.1.2ellmp.nuxy ・l ・mp.dens.1.7800 mp.ex.2.3el0mp ・nuxy ・2・ mp.dens.2.3000 k.l.-60. 10.0k.2.-50k.3.-30.15k.4.-10.20k.5.10.20k.6.30.15k.7.50k.8.60.-10k ・10.・60k.11,-30 k.12,-10k.13,10k. 11.30k.15.60k. 16,70kgen,2.all .......... -20. .0 ♦do.i.1.7l.i.inl.i+16.iH7拿enddo拿do.i・2・7l.i.i416拿enddo1.L91.1,101.17.251.17.261.8.151.8.161.24.311.24.321.2.171.8.231.7.24拿do.i.3.6l.i+16.i*24♦enddo<1.9.10.26.25a.10,2.18.26a.2.11.27.18a.llJ2.28.27a.12,13.29.28 aJ3J4.30.29a. 14,7.23.30a.7.15.31.23a.15,16.32.31 !桥体權粟lsel.s...1.32 latt,1.1.1 1esize・nl1.2 lmesh.all!悬索lsel.s...33.40Imesh.all!桥面aatt.2.3.3aesize.nl1.2 amesh.all。