Experimental performance and numerical prediction of precast prestressed concrete frames endowed with shear panel dampers

Abstract

The precast prestressed efficiently fabricated frame (PPEFF) represents a rapid assembly system. However, it may possess limited energy-dissipating capacity when applied to high-rise buildings in high seismic-prone zones. To solve this problem, a precast prestressed efficiently fabricated frame with shear panel dampers (PPEFF-SPDs) is proposed in this paper. Along this vein, this study focuses on the effective modular techniques for damper installation as well as the seismic performance of a PPEFF-SPDs. To investigate the seismic performance of the PPEFF-SPDs, a 0.8-scale two-story specimen was tested using hybrid and quasi-static tests. The test results showed that the PPEFF-SPDs designed according to Chinese building codes exhibited reliable seismic performance with the corresponding performance objectives satisfied. The specimen displayed an effective and stable energy-dissipating capacity even when the inter-story drift ratios reached 2%, and the specimen damage conformed to the failure pattern foreseen for strong columns and weak beams. This study demonstrates the feasibility of the proposed PPEFF-SPDs and provides a promising alternative for the PPEFF in high seismic-prone zones.