网架结构模型损伤试验研究

Experimental Investigation of Damage Test for Space Truss Structure Model

本文通过模拟网架结构构件的损伤及支座沉降,采用实际应用较为成熟的结构静力响应测试及低阶模态测试方法对一平面足尺钢网架模型进行测试,探讨网架结构在构件损伤时结构特性及响应变化特点规律,试验成果可为大跨结构的健康监测及损伤识别提供依据。

A full-size steel space truss model was tested in this experimental investigation.Damage of various structural members and support settlement were simulated.Relatively mature techniques including static response test and low order modal test were utilized as measuring method.Some useful variation laws of structural property and response due to damage were find out.The investigation results can provide references for health monitoring and damage identification of long span structures.