Shaking table test on seismic response of structure-equipment coupled system
Zhu Lihua Zhou Haoyi Zhang Xianbin Gao Feifan
1. State Key Laboratory of Green Building in Western China, Xi’an University of Architecture & Technology, Xi’an 710055, China;
2. School of Civil Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, China
Abstract：There are complicated dynamic interaction between equipment and structure for industrial buildings. The seismic response of coupled system will change in case of different dynamic properties of equipment and structure. In order to study the seismic response and failure process of structure-equipment coupled system in case of parameter change, shaking table tests of three coupled system models were conducted. The model consists of a reinforced concrete frame structure and a steel oscillator of single freedom degree. The dynamic characteristics, displacement response, dynamic magnification factor, dynamic strain and hysteretic energy of structure-equipment coupled system under seismic waves are obtained by the experiment. The influence of parameter variations of mass ratio and frequency ratio on the seismic response of coupled system is analyzed. The study shows that with the increase of mass ratio, the seismic response of structure also increases, while the equipment decreases, and with the decrease of frequency ratio, the seismic response of structure decreases, while the equipment increases. The research results can present reference for the dynamic design of structure which is used to support equipment.
