SHAKING TABLE TEST AND DAMAGE ANALYSIS OF STEEL FRAME STRUCTURE
-
摘要: 为了研究在地震作用下的结构响应及损伤形式,选用非完全缩尺的两榀三跨三层的空间钢框架结构,以宁河波、El Centro波和Taft波为激励进行了振动台试验。分析了该模型框架的动力性能,从加速度响应、位移响应和应变响应等方面对结构开展了抗震性能研究和损伤分析。结果表明:随着地震强度增大和结构损伤累积,结构动力放大系数减小,位移反应增大,并基于动力增量分析方法对结构的抗震性能进行评估,为今后结构抗震子结构试验分析中子结构的选取提供参考依据。Abstract: In order to study the structural response and damage form under earthquake, a two-bay-three-span three-story space steel frame structure with incomplete scale was selected. Ninghe wave, El Centro wave, and Taft wave were used as excitation to conduct shaking table tests. The paper analyzed the dynamic performance of the model frame, and conducted seismic performance research and damage analysis of the structure in terms of acceleration response, displacement response and strain response. The results showed that as the earthquake intensity increased and the structural damage accumulated, the structural dynamic amplification factor decreased and the displacement response increased. The seismic performance of the structure was evaluated based on the IDA method, so as to provide a reference for the selection of sub-structures in structural seismic experimental analysis.
-
Key words:
- steel frame /
- shaking table test /
- seismic performance /
- damage analysis /
- incremental dynamic analysis
-
[1] 王进廷, 金峰, 张楚汉. 结构抗震试验方法的发展[J]. 地震工程与工程振动, 2005(4):37-43. [2] 杨巧荣,陈建秋,刘文光,等.某全钢结构地震模拟振动台试验和理论研究[J].世界地震工程,2003,19(3):97-103. [3] 康帅,楼梦麟,殷琳.框架结构振动台试验分析及数值模拟[J].世界地震工程,2018,34(2):112-122. [4] 陈越时,王伟,陈以一.三层足尺分层装配支撑钢框架结构的振动台试验研究[J].建筑结构学报,2018,39(9):22-29. [5] 杨筱. 基于IDA的型钢混凝土异形柱框架地震易损性分析[D].西安:西安建筑科技大学,2018. [6] 薛建阳, 周超锋, 刘祖强, 等. 型钢混凝土异形柱空间框架地震响应试验研究[J]. 土木工程学报, 2017, 50(5):88-96,104. [7] 王均刚,马汝建.满足固有频率相似的海洋平台相似模型设计[J].西安石油大学学报(自然科学版), 2007(1):103-106,126. [8] VAMVATSIKOS D,FRAGIADAKIS M. Incremental Dynamic Analysis for Estimating Seismic Performance Sensitivity and Uncertainty[J]. Earthquake Engineering Structural Dynamics,2010,39(2):141-163. [9] NEHRP. Guidelines for the Seismic Rehabilitation of Buildings:FEMA273[R]. Washington DC:Federal Emergency Management Agency, 1997.
点击查看大图
计量
- 文章访问数: 124
- HTML全文浏览量: 13
- PDF下载量: 4
- 被引次数: 0