首页> 外文会议>International Symposium on Structural Engineering for Young Experts;ISSEYE-10 >EXPERIMENTAL STUDY ON DYNAMIC BEHAVIOR AND SEISMIC RESPONSE OF CONCRETE FILLED SQUARE STEEL TUBULAR COLUMN FRAME STRUCTURE
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EXPERIMENTAL STUDY ON DYNAMIC BEHAVIOR AND SEISMIC RESPONSE OF CONCRETE FILLED SQUARE STEEL TUBULAR COLUMN FRAME STRUCTURE

机译:方钢管混凝土柱-框架结构动力特性及地震反应的试验研究

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摘要

In order to analyze the dynamic behavior and the seismic response of the concrete filledsquare steel tubular (CFSST) column frame structure, a 1/5 scaled CFSST column frame structure model was designed and manufactured. From carrying out the model test and the shaking table test,dynamic parameters (frequency, vibration model and damping ratio) of the CFST frame were obtined,and the frame model responses of acceleration, displacement and strain under different earthquake waves (E1-Centro wave, Tianjin wave and Wuhan artificial wave) were measured. It can be indicated from the tests that: Single point Input Single point Output (SISO) method is the better way to investigate the dynamic behavior of the CFSST frame structure; the maximum displacement and acceleration amplification coefficient of the model under three earthquake waves are 17.50mm and 2.46 respectively; the deformation of this structure under the magnitude 8 earthquake presents a bending type, in addition, beam ends and column ends are still in elastic state; the maximum inter-storey drift angle is 1/70, they don't exceed the plastoelastic limit value in the specifications.
机译:为了分析矩形钢管混凝土柱框架结构的动力特性和地震响应,设计并制作了比例为1/5的CFSST柱框架结构模型。通过进行模型试验和振动台试验,确定了CFST框架的动力参数(频率,振动模型和阻尼比),并分析了不同地震波(E1-Centtro波)下框架模型的加速度,位移和应变响应,天津波浪和武汉人造波浪)进行了测量。从测试中可以看出:单点输入单点输出(SISO)方法是研究CFSST框架结构动态行为的更好方法。在三个地震波作用下,模型的最大位移和加速度放大系数分别为17.50mm和2.46;该结构在8级地震中的变形呈弯曲型,此外,梁端和柱端仍处于弹性状态。层间最大漂移角为1/70,不超过规格中的塑性弹性极限值。

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