Dynamic Collapse Test on 3-D Steel Frame Model

Abstract eng:
The collapse process of building under severe earthquake is not clarified yet. In order to make it clear, shaking table test of a full-scale building at E-Defense is conducted in 2007. This paper presents a pre-consideration of the full-scale collapse test. Main purposes of this study are follows; (1) to collapse three-dimensional steel frame model by three-dimensional input wave, and (2) to measure exactly dynamic collapse behavior of three-dimensional steel frame model. The specimen is 2-story and 1×1 span steel frame model designed as column yield-type. Input wave is three-dimensional acceleration record which is JMA Kobe record scaled in time domain corresponding to the scale of model. Finally the frame model lost restoring force because of local buckling at all columns of the first story. Dynamic behavior up to collapse was surely measured by couplings of potentiometer-type displacement transducers. Obtained results are effective to verify not only the instrumentation measurement methods but also numerical analytical methods for collapse simulation in steel structures.

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