ABSTRACT In response to the demand for seismic‐resilient industrial structures, this study presents a load‐bearing and lateral‐resistance decoupled (LLRD) hybrid frame–shear wall system, separating vertical load‐bearing (prefabricated frames with adaptive prefabricated beam‐column APBC connections) from horizontal resistance (perimeter shear walls). Experimental tests confirm that APBC connections (ductility coefficient μ = 4.2) and bolted anchor base (XZ) connections (60% cyclic stiffness retention) perform well. A five‐story LLRD model (modal/pushover/SPO2IDA analyses) shows longer natural periods (0.342 s), higher ductility ( μ = 14.7), and 28% less drift concentration than cast in situ (CIS) systems. The collaborative decoupling coefficient (CDC) quantifies 25% higher decoupling efficiency via APBC‐XZ synergy; a spectral acceleration ( S a )‐linked repairability model guides post‐earthquake maintenance. Under industrial special loads, the LLRD system avoids resonance and cuts vertical displacement by 30.4% compared with CIS systems. Seismic fragility analysis shows comparable collapse probability (32.46% at S a = 2.0 g) and collapse margin ratio (2.69) to CIS systems, with lower repair costs. The LLRD system balances prefabrication efficiency, seismic resilience, and industrial adaptability, offering a sustainable framework for high‐seismic industrial regions.
Li et al. (Wed,) studied this question.