﻿ 拱结构的损伤研究 Study on Damage of Arch Structure

Hans Journal of Civil Engineering
Vol.04 No.04(2015), Article ID:15742,5 pages
10.12677/HJCE.2015.44023

Study on Damage of Arch Structure

Hailing Li, Zuoyu Sun

School of Civil Engineering, Guangzhou University, Guangzhou Guangdong

Email: helenlinglee@163.com

Received: Jul. 1st, 2015; accepted: Jul. 18th, 2015; published: Jul. 24th, 2015

Copyright © 2015 by authors and Hans Publishers Inc.

ABSTRACT

As the further development of large, overrun, complex civil engineering structure, arch structure is one of the most widespread structures. Under the influence of various unfavorable factors, civil engineering structure may cause damage, even catastrophic accidents. Structural damage will cause the structure modal parameters change. Therefore, by means of the finite element analysis of an arch structure, mode information was extracted such as the frequency and mode shape. And by means of the analysis of the mode difference, the first and the second derivative, the damage location was explored. The results showed that the damage location could be obtained by the mutation situation.

Keywords:Damage Detection, Finite Element Analysis, Arch Structure, Modal Information

Email: helenlinglee@163.com

1. 引言

2. 模型分析

2.1. 模型

2.2. 拱结构模型模态分析

Figure 1. Model of arch structure

Figure 2. The first four model of arch structure

Table 1. Modal values of arch structure model

2.3. 模态差，一阶导，二阶导的损伤识别

(1)

3. 结束语

Figure 5. The first four model of Φ''

Study on Damage of Arch Structure. 土木工程,04,180-185. doi: 10.12677/HJCE.2015.44023

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