Experimental Study on Detecting the Building Damage Caused by Fire with Acoustic Emission Technique

被引：0

作者：

Lv, Junli ^{[1
,2
]}

Dong, Yuli ^{[1
]}

Sun, Jiandong ^{[3
]}

机构：

[1] Harbin Inst Technol, Sch Civil Engn, POB 2554 73 Huanghe Rd, Harbin 150090, Peoples R China

[2] Shandong Jianzhu Univ, Shangdong provincial key lab appraisal & retrofi, Jinan 250014, Shandong, Peoples R China

[3] Shandong Prov Acad Bldg Res, Jinan 250000, Peoples R China

来源：

ADVANCES IN CIVIL ENGINEERING, PTS 1-4 | 2011年 / 90-93卷

关键词：

acoustic emission technique; fire; building damage; experimental study;

D O I：

10.4028/www.scientific.net/AMM.90-93.3117

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Acoustic emission technique is a non-destructive detection method that can continuously and dynamically detect the damage evolution inside the structure. In this paper, a local fire experiment is conducted within an entity building to acquire and analyze acoustic emission parameters in the whole process of the experiment. Results show that the number of events is closely related to the crack development, the peak value of the energy rate occurs when a large number of cracks appear, signals with the amplitude less than 80db account for more than 90%, signal amplitudes produced by the building damage in different stages from fire development to fire attenuation are different, and most signals with the amplitude of 75db - 85db are produced in the stage of fire development.

引用

页码：3117 / +

页数：2