支持结构状态评估的损伤模型研究-《郑州大学学报(工学版)》

文章信息/Info

Title:: Study on Damage Models for Effective General and Practicable Assessmentof Structural Conditions

作者:: 吴子燕; 赵宇; 杨海峰; 等.; 西北工业大学力学与土木建筑学院,陕西西安,710072, 西北工业大学力学与土木建筑学院,陕西西安,710072, 西北工业大学力学与土木建筑学院,陕西西安,710072, 西北工业大学力学与土木建筑学院,陕西西安,710072

Author(s):: WU Ziyan; ZHAO Yu; YANG Haifeng; etc; School of Mechanics，Civil engmeertng and AeIntccturc，Norlhwesteln Polytechnic University，Xi’an 710072，China

Keywords:: damage models; Status assessment indicators; cumulative damage; Structural health monitoring

摘要:: 提出仅考虑最大变形影响和综合考虑最大位移加损伤累积影响的两种损伤模型,并建立相应的结构状态评估指标.通过对比不同地震加速度峰值下、同一地震波不同持续时间下所提状态评估指标和其他指标的分析结果,研究了两种损伤模型的适用情况.研究发现,在加速度峰值＜0.3 g时通过位移模型来衡量结构的损伤状态是合理的;当加速度峰值＞0.3 g时,应该采用综合考虑最大位移+损伤累积影响的损伤模型.

Abstract:: his paper establishes two new damage models，one aeeouflt for the maximum deformation effectonly while tile other account fbr both the maximum deformation and the cumulative damage，and establish thecorresponding evaluation indicators for different structural damage state．By comparing the result of proposedstate assessment indicators and other indicators raider different seismic peak acceleration and tile same seismicwaves with different duration，study the application of two kinds of’damage model．The result indicates that，while peak acceleration is less than 0．3 g，using the displacement model to measure tile structural damagestate is reasonable；when larger than 0．3 g，it should be intcgrated to consider the cumulative elect of themaximum displacement and damage of the damage model，Examples show that the proposed damage assess．ment indicators fit the actual situation better，with engineering application value to some extent．