midas满堂支架精品教程

《midas满堂支架精品教程》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、满堂支架分析北京迈达斯技术有限公司目录1、工程概况······································································12、定义材料和截面·····························································1定义钢材的材料特性···························································1定义截面···································

2、·······································23、建模············································································4建立第一根竖杆：······························································4建立余下三根竖杆：···························································4建立横向支撑和斜撑单元：··

3、················································5建立其余三根竖杆间的支撑添加边界添加荷载工况··································································14定义屈曲分析··································································164、查看结果························································

4、············17查看屈曲模态··································································17表格形式查看各模态的临界荷载··········································171、工程概况在本例题中以一个56m跨径混凝土连续梁桥满堂支架为基础，介绍midas/Civil进行稳定及应力分析的方法。支架高度6.2m，钢材材质为A3钢，支架上方倒扣C36b的槽钢，上部荷载通过25mm竹胶板及方木传递到槽钢，支架竖向间距1.2m，水平间距

5、考虑1m。由于试用版程序节点限制，模型建立考虑顺桥向5m，横桥向5m；基本信息见下图。2、定义材料和截面定义钢材的材料特性模型/材料和截面特性/材料/添加类型>钢材；规范：JTJ(S)数据库>A3类型>用户定义；规范：无弹性模量：1.0787e+008泊松比：0线膨胀系数：0容重：51定义截面注：midas/Civil的截面库中含有丰富的型钢截面，同时还拥有强大的截面自定义功能。模型/材料和截面特性/截面/添加数据库/用户>截面号1；截面类型（管型截面）选择用户定义，数据库（GB-YB05），截面名称（P50x4），点击适用数据库/用户>截面号

6、2；截面类型（槽钢），截面名称（C36b），点击适用数据库/用户>截面号3；截面类型（实腹长方形截面），截面名称（15x15cm）H（0.15m）B(0.15m)，点击适用模型/材料和截面特性/厚度/添加数值>厚度号1面内和面外0.025m，点击适用↵233、建模建立第一根竖杆：注：对于直线单元，使用midas/Civil特有的扩展功能可以快速地建立模型。确认当前单位体系是kN，m模型>节点>建立节点坐标（0，0，0）模型>单元>扩展单元全选扩展类型>节点-线单元单元类型>桁架单元；材料>1:A3；截面>1：P50x4生成形式>复制和移动复制和

7、移动>任意间距>z>（5@1.2，0.2）↵建立余下竖杆：顺桥向竖杆模型>单元>复制和移动，全选，在x方向复制间距1m，复制次数5，4横桥向竖杆。模型>单元>复制和移动，全选，在y方向复制间距1m，复制次数5，建立横向单元：模型>单元>建立连接相应节点，生成横杆。打开节点号显示单元类型>梁单元；材料>1:A3；截面>1：P50x4节点连接（1,36）5模型>单元>复制和移动，选择最新建立的个体，在z方向复制间距1.2m，复制次数5，调整模型视图采用窗口选择选择单元217to241模型>单元>复制和移动，在y方向复制间距1m，复制次数5，6单元类

8、型>梁单元；材料>1:A3；截面>1：P50x4节点连接（1,211）模型>单元>复制和移动，选择最新建立的个体，在z方向复制间距1.2m，复制次数5