Experimental study on vibration control of Xiaoyan pagoda in Xi'an

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (16) : 113-121.

WANG Sheliang, LIU Wei, YANG Tao

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Abstract

Based on superelastic of SMA and combined with suspension pendulum damping theory, shape memory alloy-suspension pendulum damping system(SMA-SPDS) was made, and the vibration table test was carried out to study the working performance and effectiveness of SMA-SPDS under different prestrain. In order to obtain the seismic response of the small wild goose pagoda structure which is installed SMA-SPDS or not respectively, the small wild goose pagoda structure scale model of a 1/10 was designed and made and carried out the shaking table test. the effect of earthquake reduction SMA-SPDS was analyzed. The results show that the SMA-SPDS system developed in this paper is stable, easy to integrate, and has obvious damping effect. It can meet the demand of pagoda structure. After setting SMA-SPDS, the deformation of tower structure can be obviously changed, and the displace response of the model structure is obviously reduced, especially the top effect is obvious, which can be reduced by 30%. The results also show that the earthquake is more intense, the damping effect of SMA-SPDS is more obvious and the research and development of SMA-SPDS is a kind of new damping system that can effectively reduce the seismic response of masonry structure and have reference value in brick pagoda structure energy dissipation protection.

Key words

seismic response

/ model structure / validity / seismic performance / shaking table test

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WANG Sheliang, LIU Wei, YANG Tao. Experimental study on vibration control of Xiaoyan pagoda in Xi'an[J]. Journal of Vibration and Shock, 2017, 36(16): 113-121

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