桁架柱支承网架结构动力性能试验及有限元分析研究

Vibration Measurement and Finite Element Analysis on Spatial Steel Grid Structure Prop up With Truss Column

以某桁架柱悬吊体育馆网架结构为研究对象,对其进行了较系统的动力试验和有限元分析,动力试验包括环境激励情况下钢网架的动力特性、固定外荷载振动钢网架的动力特性、非固定外荷载振动钢网架的动力特性;系统动力分析及动力响应分析采用ANSYS通用有限元程序;根据得出的计算结果,与实测结果对比分析,可对现状网架的损伤及安全工作性能作出判断,同时可为同类既有网架结构的检测设计作为参考。

Based on one spatial steel grid structure prop up with truss column,by the meaning of vibration measurement includes dynamic property under environment incentive,dynamic property under fixed applied load and dynamic property under non-fixed applied load,as well as finite element analysis employed ANSYS analysis module,the mechanical behavior of this spatial steel grid structure has been studied.In addition,comparative analyses the test result and finite element analysis result,decides the damage and safety performance of this spatial steel grid structure.This can be used as a reference for experimental study and design on spatial steel grid structure.