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桁梁式桥
上承式钢桁梁桥的刚度分析
上承式钢桁梁桥的刚度分析——将列车上承式钢桁梁桥视为一个整体振动系统。上承式钢桁梁桥采用桁段有限元法离散，列车采用具有26个自由度的二系弹簧车辆空间振动模型。应用弹性系统动力学总势能不变值原理及形成矩阵的“对号入座”法则，建立列车一桥梁时变系统...
下承式钢桁梁桥设计
单线铁路下承式栓焊简支钢桁梁桥 课程设计 目 录 第一章 设计资料 ·······································1 第一节 基本资料 ·················································· 1 第二节 设计内容设计内容 ········································ 1 第三节 设计要求 ·················································· 2 第二章 主桁杆件内力计算 ·································3 第一节 主力作用下主桁杆件内力计算 ··························· 3 第二节 横向风力作用下的主桁杆件附加内力计算 ···············