Application of Non-Detective Techniques in Traditional Masonry Structures

作     者：程成 车爱兰 曹永康 

作者机构：School of Naval Architecture Ocean and Civil Engineering Shanghai Jiaotong University 

出 版 物：《Journal of Shanghai Jiaotong University(Science)》 (上海交通大学学报(英文版))

年 卷 期：2013年第18卷第3期

页      面：306-310页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0813[工学-建筑学] 

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

主　　题：damage identification microtremor natural modal stiffness loss 

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-element-method (FEM). Normalizing the 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.