Assessing the seismic behavior of steel moment frames equipped by elliptical brace through incremental dynamic analysis (IDA)

被引：0
作者：
Habib Ghasemi Jouneghani
Abbas Haghollahi
机构：
[1] Shahid Rajaee Teacher Training University,Department of Civil Engineering
来源：
Earthquake Engineering and Engineering Vibration | 2020年 / 19卷
关键词：
elliptic brace; response modification factor; overstrength factor; ductility factor; incremental dynamic analysis; fragility curve;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Incremental dynamic analysis and nonlinear static pushover analysis are carried out on a performance-based design to determine the seismic demands and capacities of an elliptic braced moment resisting frame (ELBRF). The objective is to assess ductility, overstrength and response modification factors in a modern steel-braced structural system based on incremental dynamic analysis. This integrated system is connected to a beam and column with an appropriate length while providing enough architectural space to allow for an opening without having the common problems associated with architectural spaces in braced systems. Several different classes of buildings are considered on soil type II. Linear dynamic analysis, nonlinear static pushover analysis and incremental nonlinear dynamic analysis related to 12 records from past earthquakes are carried out using OpenSees software. The factors of ductility, overstrength and response modification are calculated for this system. The values of 9.5 and 6.5 are found and suggested only for the response modification factor for ELBRF systems in allowable stress and ultimate limit state methods, respectively. The fragility curves are plotted for the first time for this type of bracing, which contributes to the assessment of building seismic damage.
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页码：435 / 449
页数：14
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  • [1] Asgarian B(2005)Inelastic Postbuckling and Cyclic Behavior of Tubular Braces J. Offshore Mech Arct Eng. 127 256-262
  • [2] Aghakouchack AA(2015)Equating Incremental Dynamic Analysis with Static Nonlinear Analysis at Near-Field Excitation Earthquake Engineering and Engineering Vibration 14 465-476
  • [3] Bea RG(2011)Vulnerability of Ordinary Moment Resistant Concrete Frames Earthquake Engineering and Engineering Vibration 10 519-533
  • [4] Asghar B(2013)An Efficient Method for Estimating the Collapse Risk of Structures in Seismic Regions Earthquake Engineering & Structural Dynamics 42 25-41
  • [5] Mohsen T(2019)Peak Displacement Patterns for the Performance-Based Seismic Design of Steel Eccentrically Braced Frames Earthquake Engineering and Engineering Vibration 18 379-393
  • [6] Amir M(2014)Response Modification Factor of the Frames Braced with Reduced Yielding Segment BRB Structural Engineering and Mechanics 50 1-17
  • [7] Barkhordary M(2014)Studying the Seismic Behavior of Gate Braced Frames by Incremental Dynamic Analysis (IDA) Journal of Constructional Steel Research 99 111-120
  • [8] Tariverdilo S(2016)System Reliability-Based Seismic Collapse Assessment of Steel Moment Frames Using Incremental Dynamic Analysis and Bayesian Probability Network Engineering Structures 118 274-286
  • [9] Eads L(2016)Study of the Seismic Performance of Steel Frames in the Elliptic Bracing Journal of Vibroengineering 18 2974-2985
  • [10] Miranda E(2018)Assessing Seismic Oerformance of the Elliptic Braced Moment Resisting Frame through Pushover Method Journal of Rehabilitation in Civil Engineering 7 68-85
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