Analysis of progressive collapse process of RC structures based on hybrid framework of FEM-physics engine

Evolution characteristics and performance evaluation of extended end-plate joints with single and double side connections under cyclic loading

“…Accurately assessing the instability characteristics of plate connection joints under complex loads such as earthquakes and wind loads is crucial for the safety and reliability of structures. The risk of failure at critical locations [ 5 , 6 ] in plate connections can lead to catastrophic collapses of buildings [ 7 , 8 ]. This risk can be attributed to the sequential evolution of performance [ 9 ] and the cumulative progression of damage, representing the gradual transformation of the energy system in plate joints from quantitative to qualitative changes, continually triggering failure risks [ 10 ].…”

“…Both loading methods overlook the case of asymmetric bending moments in double-sided connection joints, where two opposing bending moments are most unfavorable for the panel zone. Considering the sequential and uncertain nature of seismic loads, there exists a coupled superposition effect of moments generated at the joint connection [ 8 , 34 ]. Thus, studying the mechanical performance of double-sided connection joints with opposing bending moments is necessary.…”