Experimental Research on the Seismic Behavior of Reinforced Concrete Column–Beam Joints Connected by Π-Shaped Steel Plates

Buildings, Journal Year: 2025, Volume and Issue: 15(3), P. 349 - 349

Published: Jan. 23, 2025

The mechanical performance of existing buildings degrades over time, and even if the meets requirements, some will have new usage needs, necessitating reinforcement renovation buildings. Therefore, this paper conducted experimental research on reinforced concrete joints that could simultaneously meet requirements for seismic needs. Firstly, columns are produced, treatment wrapped steel plate is conducted. Then, Π-shaped welded onto column, longitudinal bars beam connected through weld seam. Finally, we proceed with pouring wrapping plate. After completion specimen production, a cyclic loading test to compare analyze hysteresis curve, ductility, stiffness degradation, energy dissipation type cast-in-place specimen. thickness, including plate, designed as variable experiment. results indicate properties effectively improved after At same improves an increase in thickness beam, while impact relatively minimal. show compared specimen, method proposed can significantly improve help promote development urban work.

Language: Английский

Shake table tests of economical precast ultra-high performance concrete bridge piers with different fiber types and seismic joint materials

Engineering Structures, Journal Year: 2025, Volume and Issue: 330, P. 119961 - 119961

Published: Feb. 26, 2025

Language: Английский