摘要
引入抗弯弹簧铰模拟结构接头传递弹性弯矩的特性,建立了用于装配式公路钢桥竖向自由振动分析的带抗弯弹簧铰梁模型;利用有限元程序ANSYS对接头进行数值仿真,得到了抗弯弹簧铰刚度。算例表明,抗弯弹簧铰可反映拼装式结构接头传递弹性弯矩的特性,装配式公路钢桥自振频率理论解与试验吻合很好。
The bending-resistant spring hinge model is adopted to simulate the behavior of the elastic ben-ding of connecting joints. The structural model of a beam with bending-resistant spring hinge is established for the natural vibration analysis of prefabricated highway steel bridges. The behavior of connect joints and the stiffness of bending-resistant spring hinges are studied with the finite element software ANSYS. A comparison between the present model and test results shows that the bending-resistant spring hinge model can represent the properties of elastic bending of connect joints of assembled structures.
出处
《国防交通工程与技术》
2007年第4期33-35,共3页
Traffic Engineering and Technology for National Defence
关键词
桥梁工程
装配式公路钢桥
抗弯弹簧铰
自由振动
连接接头
bridge engineering
prefabricated highway steel bridge
bending-resistant spring hinge
natural vibration
connecting joint
