2016年7月下 施工技术 第45卷第14期 CONSTRUCTION TECHNOLOGY 105 D0I:10.7672/8js2016140105 半刚性满堂支撑架可靠性分析及优化设计* 曾亚平，孙新建1，朱云龙2 (1.青海大学水利电力学院，青海西宁810016；2.株洲市水利水电勘测设计院，湖南株洲412000) [摘要]建立半刚性满堂支撑架三维有限元模型，基于ANSYS-PDS采用蒙特卡罗法，考虑随机输人变量对满堂支 撑架灵敏度的影响，提出在现行规范经验公式中采用修正参数的方法，以改进规范计算精度.在此基础上，指定步 距、纵距、横距为设计变量，支撑架复合应力、纵横向水平杆的挠度为状态变量，钢管用量为目标函数进行优化分 析.通过对比得出考虑稳定性系数对纵距的影响比较大，其优化方案更具有安全性. [关键词]钢结构；支撑架；半刚性：有限元分析：优化：设计 [中图分类号]TU755.23 [文献标识码]A [文章编号]1002-8498(2016)14-0105-04 Study on Optimal Design and Reliable Analysis of Semi-rigid Full Hall Support Frame Zeng Yaping' Sun Xinjian' Zhu Yunlong (1.Water Conservancy and Electric Power Institute Qinghai University Xining Qinghai 810016 China; 2.Zhuzhou City Water Conserrancy and Hydropower Survey and Design Institute Zhuzhou Hu'nan 412000 China) Abstract:The 3D finite element model of semi-rigid full hall formwork support was established Monte Carlo method is adopted based on ANSYS-PDS and considering the influence of the random input variables on full hall formwork support frame sensitivity the parameter correction method adopted in current code empirical formula is put forward in order to improve the standard of accuracy.On this basis the specified step distance and the the vertical distance horizontal distance were appointed as design variables the deflection of the support frame posite stress horizontal and vertical horizontal bars were regarded as state variables and the amount of steel tube was the objective function on which optimization analysis was don...
半刚性满堂支撑架可靠性分析及优化设计.pdf
