Study on Damage Diagnosis of Concrete Structure after Fire by Rebound & Impulse-Echo Combined Method

摘要：

Damage diagnosis of concrete structure is the most important method for comprehensive damage assessment of construction structure after fire. The superficial damage degree of concrete structures after fire could be detected with the rebound method. The damage depth of concrete structures could be measured with the impulse-echo method. Based on the character of wavelet transform theory, the collected impulse-echo signal was analyzed with wavelet transform, and the characteristic information of damage depth could be picked out easily. Because of using the above two kinds of non-destructive detection method, the rebound&impulse-echo combined method may supplement the insufficiency of single detection method, and it has small error and high testing precision. The damage degree of concrete structures after fire can be diagnosed accurately, fleetly and exactly with the rebound impulse-echo combined method.

关键词： fire damage rebound&impulse-echo combined method concrete structure wavelet analysis singularity detection

作者: XU Zhisheng CHEN Min ZHAO Wangda

作者单位: School of Civil Architectural Engineering,Central South University,Changsha 410075,Hunan,China School of Civil Architectural Engineering,Central South University,Changsha 410075,Hunan,China;Schoo

会议类型: 国际会议

会议名称: The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1869-1873

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）