Incremental dynamic analysis method application in the seismic vulnerability of infilled wall frame structures

IF 0.7 Q4 ENGINEERING, MECHANICAL
Weini Ma
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引用次数: 0

Abstract

To reasonably evaluate the overall seismic performance of infilled wall frames, a corresponding nonlinear analysis model is constructed with infilled wall frames as the research object. It quantifies the failure levels of structural and non-structural components and proposes a method for extracting structural overall performance indicators. The vulnerability of the case frame structure is analyzed using the Incremental Dynamic Analysis (IDA) method. The results showed that the seismic performance of the infilled wall frame and the ordinary frame met the seismic fortification requirements, and the seismic capacity of the infilled wall frame was better. After implementing a 7-degree seismic fortification, the cumulative probability of basic integrity, minor damage, and moderate damage for infill wall frames reached 99.15 %, surpassing the fortification target of 1.5 g. However, the seismic capacity of ordinary frames was overestimated, as their cumulative probability of basic intact, minor damage, and moderate damage under a 7-degree seismic fortification was 99.7 %. Neglecting its impact, ordinary frames exhibited lower seismic performance compared to other structures, with a basic intact probability of only 48.49 % under frequent earthquake actions at 7 degrees. The research utilizes effective methods for evaluating the seismic vulnerability of infilled wall frames.
增量动力分析法在填充墙框架结构抗震脆弱性中的应用
为合理评估填充墙框架的整体抗震性能,以填充墙框架为研究对象,构建了相应的非线性分析模型。该模型量化了结构和非结构部件的破坏程度,并提出了一种提取结构整体性能指标的方法。采用增量动力分析(IDA)方法分析了案例框架结构的脆弱性。结果表明,填充墙框架和普通框架的抗震性能均满足抗震设防要求,填充墙框架的抗震能力更好。实施 7 度抗震设防后,填充墙框架的基本完整、轻微破坏和中度破坏的累计概率达到 99.15%,超过了 1.5 g 的设防目标;但普通框架的抗震能力被高估,在 7 度抗震设防下,其基本完整、轻微破坏和中度破坏的累计概率为 99.7%。如果忽略其影响,普通框架结构的抗震性能则低于其他结构,在 7 度地震频繁作用下,其基本完好概率仅为 48.49%。该研究利用有效方法评估了填充墙框架的抗震脆弱性。
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来源期刊
Journal of Vibroengineering
Journal of Vibroengineering 工程技术-工程:机械
CiteScore
1.70
自引率
0.00%
发文量
97
审稿时长
4.5 months
期刊介绍: Journal of VIBROENGINEERING (JVE) ISSN 1392-8716 is a prestigious peer reviewed International Journal specializing in theoretical and practical aspects of Vibration Engineering. It is indexed in ESCI and other major databases. Published every 1.5 months (8 times yearly), the journal attracts attention from the International Engineering Community.
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