Performance-based seismic assessment of steel frames using endurance time analysis

被引：85

作者：

Hariri-Ardebili, M. A. ^{[1
]}

Sattar, S. ^{[1
]}

Estekanchi, H. E. ^{[2
]}

机构：

[1] Univ Colorado, Dept Civil Environm & Architectural Engn, Boulder, CO 80309 USA

[2] Sharif Univ Technol, Dept Civil Engn, Tehran, Iran

来源：

ENGINEERING STRUCTURES | 2014年 / 69卷

关键词：

Endurance time analysis; Incremental dynamic analysis; Steel braced frames; Performance based seismic assessment; Collapse fragility curve; PUSHOVER ANALYSIS; MOMENT FRAMES; PREDICTION; BEHAVIOR; RISK;

D O I：

10.1016/j.engstruct.2014.03.019

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The current performance-based seismic assessment procedure can be computationally intensive as it requires a large number of time history analyses (THA) each requiring time intensive post-processing of results. This study proposes the endurance time analysis (ETA) method as an alternative method to THA and incremental dynamic analysis (IDA). ETA is a time history based dynamic pushover procedure that applies a set of gradually intensifying acceleration functions to the structure and monitors the performance of the building accordingly. In this paper, the application of ETA in the seismic assessment of multistory steel concentrically braced frames is compared with THA and IDA methods. Moreover, the progressive failure of the frames is investigated using the ETA method. The results of this analysis show that ETA can estimate THA as well as IDA, with considerably less computational effort. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：216 / 234

页数：19

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