某复杂体型高层建筑模型结构振动台试验研究

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SHAKING TABLE EXPERIMENTAL STUDY ON AN IRREGULAR TALL BUILDING STRUCTURE

1.
1. Architectural Design and Research Institute,Southeast University Nanjing 210096;
2.
2. Architectural Design and Research Institute,Zhejiang University Hangzhou 310029;
3.
3. Institute of Building Structures,CABR Beijing 100013

摘要: 通过一栋1:25复杂体型框架-剪力墙结构模型振动台试验,研究了模型结构的动力特性、弹性和弹塑性地震反应及其破坏形式。结果表明,随输入地震波加速度峰值提高,模型裂缝逐渐发展,虽然未出现破坏性裂缝,但是结构刚度衰减较快;人工波引起结构地震响应最强烈,其次是ElCentro波和场地波;结构质心和刚心偏差较大,扭转效应明显。从而建议加强筒体剪力墙刚度,增强结构延性。
- 复杂体型 /
- 高层建筑 /
- 模型试验 /
- 振动台
Abstract: Based on a shaking table experiment of 1∶25 scale irregular frame-shearwall structure model,the dynamic characteristics,seismic responses in elastic and elastic-plastic phases,and destructive forms of the structure were studied.It was observed that cracks developed with earthquake wave acceleration increasing,but no severe crack is developed in the structure during the experiment,the stiffness of the structure is weakened quickly.In the seismic responses caused by artificial wave,site wave and El Centro wave,that caused by the artificial wave is the most intense one.Torsion of the structure is heavier beacause of declination between center of mass and siffness.So stiffness of tube shearwall should be reinforced to improve its ductileness.
- complex profile /
- tall building model test /
- shaking table /