多层钢结构振动台试验与数值模拟分析
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摘要
以焦作中原商厦为原型建立缩尺模型并进行了模拟地震振动台试验以及有限元模拟研究,分析了该体系的自振特性、地震反应特征现象,特别对钢结构采用铰接节点和刚接节点的抗震性能进行了深入研究对比,对比试验与数值模拟结果发现,结构自振周期在低频域差异较大,在高频域较接近。
A scaled model was built based on Jiaozuo Zhongyuan Commercial Building for simulating seismic shaking table test, and the FEM analysis was carried out. The natural vibration characteristics, seismic responses and damage features of the model were recorded and analyzed. Moreover, the seismic behaviors of the steel frame structure using hinged joints and rigid joints were deeply studied respectively. Comparing the experiment data with the numerical simulation results, it was found that the natural vibration periods of the structure were different in the low frequency domain and similar in the high frequency domain.
A scaled model was built based on Jiaozuo Zhongyuan Commercial Building for simulating seismic shaking table test, and the FEM analysis was carried out. The natural vibration characteristics, seismic responses and damage features of the model were recorded and analyzed. Moreover, the seismic behaviors of the steel frame structure using hinged joints and rigid joints were deeply studied respectively. Comparing the experiment data with the numerical simulation results, it was found that the natural vibration periods of the structure were different in the low frequency domain and similar in the high frequency domain.
引文
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[13] 徐勇, 陈以一, 程欣,等. 轻型门式刚架抗震性能试验研究[J]. 建筑结构学报, 2010,31(10): 76-82.
[2] 刘玉姝,李国强. 带填充墙钢框架结构抗侧力性能试验及理论研究[J]. 建筑结构学报,2005,26(3):78-94.
[3] 关国雄, 夏敬谦. 钢筋混凝土框架砖填充墙结构抗震性能的研究[J]. 地震工程与工程振动, 1996, 16(1):87-99.
[4] 王春武, 万金圣, 单洁明,等. 底层框架和后砌填充墙共同作用的试验研究[J]. 江苏建筑,2000(2):5-9.
[5] 苏明周, 王振山, 王乾,等.单层单跨变截面轻型门式刚架结构振动台试验研究[J].土木工程学报,2012,45(10):98-108.
[6] 汪强,王进廷,金峰,等.基于振动台的RTDHT试验及其在双层刚架结构上的应用[J].工程力学,2010,27(10):57-63.
[7] MEMARI A M, AGHAKOUCHAK A A, GHAFORY A, et al. Full-Scale Dynamic Testing of a Steel Frame Building During Construction[J]. Engineering Structures,1999(21):1115-1127.
[8] BAIRRAO R, VAZ C T. Shaking Table Testing of Civil Engineering Structures-the LNEC 3D Simulator Experience[C]//Proceedings of 12th World Conference on Earthquake Engineering.Auckland, New Zealand: 2000.
[9] HWANG J S,CHANG K C,LEE G C,et al. Shaking Table Tests of Pinned-Base Steel Gable Frame[J]. Journal of Structural Engineering,1989,115 (12): 3031-3043.
[10] HWANG J S, CHANG K C, LEE G C. Seismic Behavior of Gable Frame Consisting of Tapered Members[J]. Journal of Structural Engineering,1991,117 (3): 808-821.
[11] HONG J K. Development of a Seismic Design Procedure for Metal Building Systems[D]. San Diego: University of California,2007.
[12] 施卫星, 李振刚, 李素珍,等. 深圳罗湖商务大厦模型振动台对比试验[J]. 同济大学学报, 2008,36(1): 12-16.
[13] 徐勇, 陈以一, 程欣,等. 轻型门式刚架抗震性能试验研究[J]. 建筑结构学报, 2010,31(10): 76-82.