: .
·········································· 21添加荷载工况 ·························································································· 21
6、输入移动荷载分析数据 ····································································· 22
定义横向联系梁组 ·················································································· 22
定义移动荷载分析数据 ··········································································· 23
输入车辆荷载 ·························································································· 24
移动荷载分析控制 ·················································································· 26
7、运行结构分析 ···················································································· 27
8、查看结果 ···························································································· 27
生成荷载组合 ·························································································· 27
查看位移 ·································································································· 27
查看轴力 ·································································································· 28
利用结果表格查看应力 ··········································································· 29栈桥分析
1、工程概况
一座用贝雷片搭建的施工栈桥，跨径 15m（5 片贝雷片），支承
条件为简支，桥面宽 6 米。设计荷载汽—20，验算荷载挂—50。贝雷
片的横向布置为 5×90cm，共 6 片主梁，在贝雷片主梁上布置 I20a
分配梁，位置作用于贝雷片上弦杆的每个节点处，间距约 75cm。如
下图所示：
贝雷片参数：材料 16Mn； 弦杆 2I10a 槽钢（C ，间
距 8cm），腹杆 I8(h=80mm,b=50mm, tf= ,tw=)。贝雷片
的连接为销接。
1图表 1 贝雷片计算图示（单位：mm）
支撑架参数：材料 A3 钢，截面 L63X4。
分配横梁参数：材料 A3 钢，截面 I20a，长度 6m。
建模要点：贝雷片主梁用梁单元，销接释放绕梁单元截面 y-y 轴的旋
转自由度；支
midas贝雷梁刚栈桥 来自淘豆网m.daumloan.com转载请标明出处.
