Građevinar, Vol. 77 No. 10., 2025.
Izvorni znanstveni članak
https://doi.org/10.14256/JCE.4237.2025
Seismic performance of partially encased composite joints
Hongxin Liu
Bing Xia
Yaming Li
Shuizhong Jia
Xiaomeng Xie
Sažetak
To evaluate the seismic performance of partially encased composite (PEC) joints with different connection configurations, quasi-static loading tests were performed on two PEC joint specimens. The experimental investigation focused on the failure mechanisms, hysteresis characteristics, ductility, energy dissipation capacity, and stiffness degradation under low-cycle repeated loading. The results revealed that strong-axis PEC joints exhibited superior ductility and energy-dissipation capacity, whereas weak-axis joints experienced weld failure and demonstrated limited energy dissipation. A finite element model was developed for strong-axis PEC joints and validated using experimental data. Moreover, the restoring force model for strong-axis PEC joints accurately captured the hysteretic behavior, providing valuable insights for structural design applications.
Ključne riječi
PEC beam-column joints; seismic performance; energy dissipation; finite element analysis; restoring model
Hrčak ID:
341182
URI
Datum izdavanja:
2.12.2025.
Posjeta: 431 *