Application of Non-Detective Techniques Traditional Masonry Structures  

作　　者：CHENG Cheng CHE Ai-lan CAO Yong-kang 

机构地区：[1]School of Naval Architecture, Ocean and Civil Engineering, Shanghai aiaotong University, Shanghai 200240, China

出　　处：《Journal of Shanghai Jiaotong university(Science)》2013年第3期306-310,共5页上海交通大学学报（英文版）

基　　金：Foundation item： the National Basic Research Program （973） of China （No. 2011CB013505）

摘　　要：Study on the non-destructive detection techniques and damage identification method is of great importance in protecting and rehabilitating the ancient architectural structure. In order to identify the location and the grade of structural damages, a multi-point microtremor measurement is performed on carved brick screen walls at Songjiang area in Shanghai, and the observed dynamic parameters （natural frequencies and natural modal） are obtained. On the other hand, the dynamic parameters of the original structure are calculated by finite-elementmethod （FEM）. Normalizing tile observed and calculated parameters on unified physical quantity, the damages are located by the variation on vibration modal, and the grade of structural damages is quantitatively evaluated by stiffness losses based on the variation on vibration modal.

关 键 词：damage identification MICROTREMOR natural modal stiffness loss 

分 类 号：TU317[建筑科学—结构工程]