ANSYS矮塔斜拉桥建模荷载与动力分析.docx
- 文档编号:18005172
- 上传时间:2023-04-24
- 格式:DOCX
- 页数:75
- 大小:1.94MB
ANSYS矮塔斜拉桥建模荷载与动力分析.docx
《ANSYS矮塔斜拉桥建模荷载与动力分析.docx》由会员分享,可在线阅读,更多相关《ANSYS矮塔斜拉桥建模荷载与动力分析.docx(75页珍藏版)》请在冰豆网上搜索。
ANSYS矮塔斜拉桥建模荷载与动力分析
目录
一.文件名及前处理模式3
二.截面的建立3
1.主梁截面3
2.桥塔截面31
三.定义单元属性32
四.建立主要节点和单元33
1.主梁节点和单元33
2.桥塔节点和单元40
3.斜拉索节点和单元41
4.鱼刺骨模型模拟斜拉索与主梁连接42
五.加载与求解44
1.施加边界条件44
2.施加自重和公路一级荷载44
六.动力特性44
1.前十阶模态自振频率44
2.前五阶振型图45
一.文件名及前处理模式
定义工作文件名与工作标题,并进入前处理模式(PREP7):
/FILNAME,BRIDGE,1!
定义工作文件名
/TITLE,ZHANGHAONAN’SHOMEWORK!
定义工作标题
/REPLOT!
重新显示
/PREP7!
进入PREP7处理器
二.截面的建立
1.主梁截面
根据本桥图纸,截面一共有32个,其中包括截面纵向变化与横向变化,为简化模型,减小工作量,选取其中11个截面作为分析对象,可以大致上反应桥梁的形态,从左到右选取图纸中的截面:
截面1:
左边跨直线段截面
截面8:
4号墩墩顶截面
截面11:
截面第一次横向变化(39M—43M)起始截面
截面14:
截面第一次横向变化(39M—43M)结束截面
截面16:
主跨跨中截面
截面22:
截面第二次横向变化(43M—45M)起始截面
截面24:
截面第二次横向变化(43M—45M)结束截面
截面25:
5号墩墩顶截面
截面27:
截面第二次横向变化(45M—39M)起始截面
截面31:
截面第二次横向变化(45M—39M)结束截面
截面32:
6号墩墩顶截面
由于截面形式复杂,而变截面需要前后两端的拓扑一致,即两端的形状,线与线的关系必须一致,两端截面的节点能一一对应,不使用辅助软件的条件下,必须对这些截面在输入时进行划分,取单元形状为四边形,方向为逆时针,并定义梁截面为MESH(自定义截面),截面偏移为梁节点偏移至横截面圆点。
命令流如下:
(1)截面1:
K,1,19.5,-0.39$K,2,18,-0.36$K,3,18,-0.65
K,4,19.5,-0.65$K,5,-19.5,-0.65$K,6,-18,-0.65
K,7,-18,-0.36$K,8,-19.5,-0.39$K,9,18,-0.36
K,10,17.15,-0.343$K,11,17.15,-0.843$K,12,18,-0.65
K,13,-18,-0.65$K,14,-17.15,-0.843$K,15,-17.15,-0.343
K,16,-18,-0.36$K,17,17.15,-0.343$K,18,16.65,-0.333
K,19,16.65,-0.843$K,20,17.15,-0.843$K,21,-17.15,-0.843
K,22,-16.65,-0.843$K,23,-16.65,-0.333$K,24,-17.15,-0.343
K,25,16.65,-0.333$K,26,15.65,-0.313$K,27,15.65,-0.573
K,28,16.65,-0.833$K,29,-16.65,-0.833$K,30,-15.65,-0.573
K,31,-15.65,-0.313$K,32,-16.65,-0.333$K,33,15.65,-0.313
K,34,12.45,-0.249$K,35,12.45,-0.509$K,36,15.65,-0.573
K,37,-15.65,-0.573$K,38,-12.45,-0.509$K,39,-12.45,-0.249
K,40,-15.65,-0.313$K,41,12.45,-0.249$K,42,11.45,-0.229
K,43,11.45,-0.729$K,44,12.45,-0.509$K,45,-12.45,-0.509
K,46,-11.45,-0.729$K,47,-11.45,-0.229$K,48,-12.45,-0.249
K,49,11.45,-0.229$K,50,10.95,-0.219$K,51,10.95,-0.719
K,52,11.45,-0.729$K,53,-11.45,-0.729$K,54,-10.95,-0.719
K,55,-10.95,-0.219$K,56,-11.45,-0.229$K,57,10.95,-0.219
K,58,9.95,-0.199$K,59,9.95,-0.459$K,60,10.95,-0.719
K,61,-10.95,-0.719$K,62,-9.95,-0.459$K,63,-9.95,-0.199
K,64,-10.95,-0.219$K,65,9.95,-0.199$K,66,6.85,-0.137
K,67,6.85,-0.397$K,68,9.95,-0.459$K,69,-9.95,-0.459
K,70,-6.85,-0.397$K,71,-6.85,-0.137$K,72,-9.95,-0.199
K,73,6.85,-0.137$K,74,5.85,-0.117$K,75,5.85,-0.617
K,76,6.85,-0.397$K,77,-6.85,-0.397$K,78,-5.85,-0.617
K,79,-5.85,-0.117$K,80,-6.85,-0.137$K,81,5.85,-0.117
K,82,5.35,-0.107$K,83,5.35,-0.617$K,84,5.85,-0.617
K,85,-5.85,-0.617$K,86,-5.35,-0.617$K,87,-5.35,-0.107
K,88,-5.85,-0.117$K,89,5.35,-0.107$K,90,4.35,-0.087
K,91,4.35,-0.347$K,92,5.35,-0.607$K,93,-5.35,-0.607
K,94,-4.35,-0.347$K,95,-4.35,-0.087$K,96,-5.35,-0.107
K,97,4.35,-0.087$K,98,1.25,-0.025$K,99,1.25,-0.285
K,100,4.35,-0.347$K,101,-4.35,-0.347$K,102,-1.25,-0.285
K,103,-1.25,-0.025$K,104,-4.35,-0.087$K,105,1.25,-0.025
K,106,0.25,-0.005$K,107,0.25,-0.505$K,108,1.25,-0.285
K,109,-1.25,-0.285$K,110,-0.25,-0.505$K,111,-0.25,-0.005
K,112,-1.25,-0.025$K,113,0.25,-0.005$K,114,-0.25,-0.005
K,115,-0.25,-0.505$K,116,0.25,-0.505$K,117,0.25,-0.505
K,118,-0.25,-0.505$K,119,-0.25,-2.5$K,120,0.25,-2.5
K,121,0.25,-2.5$K,122,-0.25,-2.5$K,123,-0.25,-3
K,124,0.25,-3$K,125,0.85,-2.7$K,126,0.25,-2.5
K,127,0.25,-3$K,128,0.85,-3$K,129,-0.85,-3
K,130,-0.25,-3$K,131,-0.25,-2.5$K,132,-0.85,-2.7
K,133,4.75,-2.7$K,134,0.85,-2.7$K,135,0.85,-3
K,136,4.75,-3$K,137,-4.75,-3$K,138,-0.85,-3
K,139,-0.85,-2.7$K,140,-4.75,-2.7$K,141,5.35,-2.5
K,142,4.75,-2.7$K,143,4.75,-3$K,144,5.35,-3
K,145,-5.35,-3$K,146,-4.75,-3$K,147,-4.75,-2.7
K,148,-5.35,-2.5$K,149,5.85,-2.5$K,150,5.35,-2.5
K,151,5.35,-3$K,152,5.85,-3$K,153,-5.85,-3
K,154,-5.35,-3$K,155,-5.35,-2.5$K,156,-5.85,-2.5
K,157,6.45,-2.7$K,158,5.85,-2.5$K,159,5.85,-3
K,160,6.45,-3$K,161,-6.45,-3$K,162,-5.85,-3
K,163,-5.85,-2.5$K,164,-6.45,-2.7$K,165,10.35,-2.7
K,166,6.45,-2.7$K,167,6.45,-3$K,168,10.35,-3
K,169,-10.35,-3$K,170,-6.45,-3$K,171,-6.45,-2.7
K,172,-10.35,-2.7$K,173,10.95,-2.5$K,174,10.35,-2.7
K,175,10.35,-3$K,176,10.95,-3$K,177,-10.95,-3
K,178,-10.35,-3$K,179,-10.35,-2.7$K,180,-10.95,-2.5
K,181,11.45,-2.5$K,182,10.95,-2.5$K,183,10.95,-3
K,184,11.45,-3$K,185,-11.45,-3$K,186,-10.95,-3
K,187,-10.95,-2.5$K,188,-11.45,-2.5$K,189,12.05,-2.7
K,190,11.45,-2.5$K,191,11.45,-3$K,192,12.05,-3
K,193,-12.05,-3$K,194,-11.45,-3$K,195,-11.45,-2.5
K,196,-12.05,-2.7$K,197,16.05,-2.7$K,198,12.05,-2.7
K,199,12.05,-3$K,200,16.05,-3$K,201,-16.05,-3
K,202,-12.05,-3$K,203,-12.05,-2.7$K,204,-16.05,-2.7
K,205,16.65,-2.5$K,206,16.05,-2.7$K,207,16.05,-3
K,208,16.65,-3$K,209,-16.65,-3$K,210,-16.05,-3
K,211,-16.05,-2.7$K,212,-16.65,-2.5$K,213,17.15,-2.5
K,214,16.65,-2.5$K,215,16.65,-3$K,216,17.15,-3
K,217,-17.15,-3$K,218,-16.65,-3$K,219,-16.65,-2.5
K,220,-17.15,-2.5$K,221,5.85,-0.617$K,222,5.35,-0.617
K,223,5.35,-2.5$K,224,5.85,-2.5$K,225,-5.85,-2.5
K,226,-5.35,-2.5$K,227,-5.35,-0.617$K,228,-5.85,-0.617
K,229,11.45,-0.729$K,230,10.95,-0.729$K,231,10.95,-2.5
K,232,11.45,-2.5$K,233,-11.45,-2.5$K,234,-10.95,-2.5
K,235,-10.95,-0.729$K,236,-11.45,-0.729$K,237,17.15,-0.843
K,238,16.65,-0.843$K,239,16.65,-2.5$K,240,17.15,-2.5
K,241,-17.15,-2.5$K,242,-16.65,-2.5$K,243,-16.65,-0.843
K,244,-17.15,-0.843!
创建关键点
*DO,I,1,241,4
A,I,I+1,I+2,I+3
*ENDDO!
循环创建截面
ET,1,PLANE82!
定义单元
LESIZE,ALL,,,3!
网分控制,设置每条线的划分数目为3
AMESH,ALL!
网格划分
SECWRITE,MYBOX1!
采用缺省扩展名写入MYBOX1文件
SECTYPE,1,BEAM,MESH!
定义用户梁截面
SECOFFSET,ORIGIN!
将梁节点偏移到横截面原点
FINISH
(2)截面8:
/CLEAR
/PREP7
K,1,19.5,-0.39$K,2,18,-0.36$K,3,18,-0.65
K,4,19.5,-0.65$K,5,-19.5,-0.65$K,6,-18,-0.65
K,7,-18,-0.36$K,8,-19.5,-0.39$K,9,18,-0.36
K,10,17.15,-0.343$K,11,17.15,-0.843$K,12,18,-0.65
K,13,-18,-0.65$K,14,-17.15,-0.843$K,15,-17.15,-0.343
K,16,-18,-0.36$K,17,17.15,-0.343$K,18,16.45,-0.329
K,19,16.45,-0.829$K,20,17.15,-0.829$K,21,-17.15,-0.829
K,22,-16.45,-0.829$K,23,-16.45,-0.329$K,24,-17.15,-0.343
K,25,16.45,-0.329$K,26,15.45,-0.309$K,27,15.45,-0.569
K,28,16.45,-0.829$K,29,-16.45,-0.829$K,30,-15.45,-0.569
K,31,-15.45,-0.309$K,32,-16.45,-0.329$K,33,15.45,-0.309
K,34,12.65,-0.253$K,35,12.65,-0.513$K,36,15.45,-0.569
K,37,-15.45,-0.569$K,38,-12.65,-0.513$K,39,-12.65,-0.253
K,40,-15.45,-0.309$K,41,12.65,-0.253$K,42,11.65,-0.233
K,43,11.65,-0.733$K,44,12.65,-0.513$K,45,-12.65,-0.513
K,46,-11.65,-0.733$K,47,-11.65,-0.233$K,48,-12.65,-0.253
K,49,11.65,-0.233$K,50,10.75,-0.215$K,51,10.75,-0.715
K,52,11.65,-0.715$K,53,-11.65,-0.715$K,54,-10.75,-0.715
K,55,-10.75,-0.215$K,56,-11.65,-0.233$K,57,10.75,-0.215
K,58,9.75,-0.195$K,59,9.75,-0.455$K,60,10.75,-0.715
K,61,-10.75,-0.715$K,62,-9.75,-0.455$K,63,-9.75,-0.195
K,64,-10.75,-0.215$K,65,9.75,-0.195$K,66,7.05,-0.141
K,67,7.05,-0.401$K,68,9.75,-0.455$K,69,-9.75,-0.455
K,70,-7.05,-0.401$K,71,-7.05,-0.141$K,72,-9.75,-0.195
K,73,7.05,-0.141$K,74,6.05,-0.121$K,75,6.05,-0.621
K,76,7.05,-0.401$K,77,-7.05,-0.401$K,78,-6.05,-0.621
K,79,-6.05,-0.121$K,80,-7.05,-0.141$K,81,6.05,-0.121
K,82,5.15,-0.103$K,83,5.15,-0.603$K,84,6.05,-0.603
K,85,-6.05,-0.603$K,86,-5.15,-0.603$K,87,-5.15,-0.103
K,88,-6.05,-0.121$K,89,5.15,-0.103$K,90,4.15,-0.083
K,91,4.15,-0.343$K,92,5.15,-0.603$K,93,-5.15,-0.603
K,94,-4.15,-0.343$K,95,-4.15,-0.083$K,96,-5.15,-0.103
K,97,4.15,-0.083$K,98,1.45,-0.029$K,99,1.45,-0.289
K,100,4.15,-0.343$K,101,-4.15,-0.343$K,102,-1.45,-0.289
K,103,-1.45,-0.029$K,104,-4.15,-0.083$K,105,1.45,-0.029
K,106,0.45,-0.009$K,107,0.45,-0.509$K,108,1.45,-0.289
K,109,-1.45,-0.289$K,110,-0.45,-0.509$K,111,-0.45,-0.009
K,112,-1.45,-0.029$K,113,0.45,-0.009$K,114,-0.45,-0.009
K,115,-0.45,-0.509$K,116,0.45,-0.509$K,117,0.45,-0.509
K,118,-0.45,-0.509$K,119,-0.45,-4.3$K,120,0.45,-4.3
K,121,0.45,-4.3$K,122,-0.45,-4.3$K,123,-0.45,-5
K,124,0.45,-5$K,125,1.05,-4.5$K,126,0.45,-4.3
K,127,0.45,-5$K,128,1.05,-5$K,129,-1.05,-5
K,130,-0.45,-5$K,131,-0.45,-4.3$K,132,-1.05,-4.5
K,133,4.55,-4.5$K,134,1.05,-4.5$K,135,1.05,-5
K,136,4.55,-5$K,137,-4.55,-5$K,138,-1.05,-5
K,139,-1.05,-4.5$K,140,-4.55,-4.5$K,141,5.15,-4.3
K,142,4.55,-4.5$K,143,4.55,-5$K,144,5.15,-5
K,145,-5.15,-5$K,146,-4.55,-5$K,147,-4.55,-4.5
K,148,-5.15,-4.3$K,149,6.05,-4.3$K,150,5.15,-4.3
K,151,5.15,-5$K,152,6.05,-5$K,153,-6.05,-5
K,154,-5.15,-5$K,155,-5.15,-4.3$K,156,-6.05,-4.3
K,157,6.65,-4.5$K,158,6.05,-4.3$K,159,6.05,-5
K,160,6.65,-5$K,161,-6.65,-5$K,162,-6.05,-5
K,163,-6.05,-4.3$K,164,-6.65,-4.5$K,165,10.15,-4.5
K,166,6.65,-4.5$K,167,6.65,-5$K,168,10.15,-5
K,169,-10.15,-5$K,170,-6.65,-5$K,171,-6.65,-4.5
K,172,-10.15,-4.5$K,173,10.75,-4.3$K,174,10.15,-4.5
K,175,10.15,-5$K,176,10.75,-5$K,177,-10.75,-5
K,178,-10.15,-5$K,179,-10.15,-4.5$K,180,-10.75,-4.3
K,181,11.65,-4.3$K,182,10.75,-4.3$K,183,10.75,-5
K,184,11.65,-5$K,185,-11.65,-5$K,186,-10.75,-5
K,187,-10.75,-4.3$K,188,-11.65,-4.3$K,189,12.25,-4.5
K,190,11.65,-4.3$K,191,11.65,-5$K,192,12.25,-5
K,193,-12.25,-5$K,194,-11.65,-5$K,195,-11.65,-4.3
K,196,-12.25,-4.5$K,197,15.85,-4.5$K,198,12.25,-4.5
K,199,12.25,-5$K,200,15.85,-5$K,201,-15.85,-5
K,202,-12.25,-5$K,203,-12.25,-4.5$K,204,-15.85,-4.5
K,205,16.45,-4.3$K,206,15.85,-4.5$K,207,15.85,-5
K,208,16.45,-5$K,209,-16.45,-5$K,210,-15.85,-5
K,211,-15.85,-4.5$K,212,-16.45,-4.3$K,213,17.15,-4.3
K,214,16.45,-4.3$K,215,16.45,-5$K,216,17.15,-5
K,217,-17.15,-5$K,218,-16.45,-5$K,219,-16.45,-4.3
K,220,-17.15,-4.3$K,221,6.05,-0.603$K,222,5.15,-0.603
K,223,5.15,-4.3$K,224,6.05,-4.3$K,225,-6.05,-4.3
K,226,-5.15,-4.3$K,227,-5.15,-0.603$K,228,-6.05,-0.603
K,229,11.65,-0.715$K,230,10.75,-0.715$K,231,10.75,-4.3
K,232,11.65,-4.3$K,233,-11.65,-4.3$K,234,-10.75,-4.3
K,235,-10.75,-0.715$K,236,-11.65,-0.715$K,237,17.15,-0.829
K,238,16.45,-0.829$K,239,16.45,-4.3$K,240,17.15,-4.3
K,241,-17.15,-4.3$K,242,-16.45,-4.3$K,243,-16.45,-0.829
K,244,-17.15,-0.829
*DO,I,1,241,4
A,I,I+1,I+2,I+3
*ENDDO
ET,1,PLANE82
LESIZE,ALL,,,3
AMESH,ALL
SECWRITE,BOX2
SECTYPE,2,BEAM,MESH
SECOFFSET,ORIGIN
FINISH
(3)截面11:
/CLEAR
/PREP7
K,1,19.5,-0.39$K,2,18,-0.36$K,3,18,-0.65
K,4,19.5,-0.65$K,5,-19.5,-0.65$K,6,-18,-0.65
K,7,-18,-0.36$K,8,-19.5,-0.39$K,9,18,-0.36
K,10,17.15,-0.343$K,11,17.15,
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ANSYS 斜拉桥 建模 荷载 动力 分析
![提示](https://static.bdocx.com/images/bang_tan.gif)