空间网架结构损伤识别模型试验研究  

Structural Damage Identification Model Test Research of Space Truss Structures

作　　者：龚治国[1,2] 赵鹏[1,2] 朱春明[1,2] 

机构地区：[1]上海市工程结构新技术重点实验室,上海200032 [2]上海市建筑科学研究院(集团)有限公司,上海200032

出　　处：《结构工程师》2011年第3期86-91,共6页Structural Engineers

基　　金：住房与城乡建设部软科学研究项目(2010-K2-2);上海市工程结构新技术重点实验室资助项目(HT0100103D001)

摘　　要：制作了大比例的空间网架结构试验模型,并设计了包括构件损伤及支座沉降在内的6种损伤工况,通过对试验模型在损伤前后的节点位移、杆件应变和一阶频率进行对比分析,总结了大跨度空间网架结构在各种损伤状态前后结构静力响应及频率变化规律,为实际工程结构的损伤识别及健康监测提供借鉴。A large scale space truss structure model was manufactured,and six kinds of damage cases including member damage and support settlement were simulated in test.By comparing node displacement,member strain and the 1st frequency of the model before and after damage,several changing regularities of static response and the 1st frequency of the model under different damage cases were concluded,which can be referenced in the damage identification and structural health monitoring of practical engineering projects.

关 键 词：网架结构 损伤识别 结构健康监测 模型试验 

分 类 号：TU356[建筑科学—结构工程] TU312.3