Seismic performance of a new precast concrete frame joint with a built-in disc spring.

ABSTRACT: A new, precast concrete frame beam-column connection is designed in this research. The connection adopts the assembly mode of the precast column and seam area jointly to maintain the integrity of the joint area and increase the assembly efficiency. Based on the conventional grouting sleeve connection, a disc spring device is constructed on the beam end to improve the ductility of the joint. Ten connecting specimens were tested under low cyclic loads, including two monolithic connections, four ordinary precast connections, and four new precast connections. The test parameters included the joint type and axial pressure ratio, and the difference in the seismic performance was determined by evaluating the failure mode, hysteresis characteristics, stiffness degradation, energy dissipation, and

SUBMITTER: Chen Q 

PROVIDER: S-EPMC10067826 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature