Seismic Isolation Measures of Plate-Shell Integrated Concrete Liquid-Storage Structure

In order to study isolation measures for plate-shell integrated concrete liquid storage structure (PSICLSS), shaking table tests were carried out to investigate the seismic responses of PSICLSS. The isolation performance of rubber isolation and sliding isolation bearings for PSICLSS was studied and shape memory alloy (SMA) was used to reduce the residual displacement of sliding isolation PSICLSS. The results show that the sliding isolation bearing can effectively reduce the seismic response of PSICLSS; however, there is a large residual displacement in the isolation layer. On the other hand, SMA-sliding isolation can provide a reliable recentering capability for isolating PSICLSS and does not cause amplification of structural response.

Automated summary

Shaking table tests were conducted to study isolation measures for PSICLSS and investigate the seismic responses of PSICLSS. The study focused on the isolation performance of rubber isolation and sliding isolation bearings for PSICLSS, and the use of SMA to reduce residual displacement of sliding isolation PSICLSS. The results showed that sliding isolation bearings effectively reduce seismic response of PSICLSS, but there is a significant residual displacement in the isolation layer. On the other hand, SMA-sliding isolation provides reliable recentering capability for isolating PSICLSS without causing structural response amplification.