Abstract
In response to the challenges of prolonged construction cycles, high costs, and environmental degradation associated with coal-pressed village reconstruction projects in northern Shaanxi mining areas. The study proposes a monolithic assembled concrete shear wall structure with non-connected vertical distribution reinforcement (SGBL monolithic assembly shear wall structure). The structural system employs non-continuous reinforcement in prefabricated wall elements, using extrusion grouting connections combined with cast-in-place boundary members, optimizing construction efficiency and enhancing environmental sustainability. To evaluate its seismic performance, five scaled specimens with low shear-span ratios were designed and analyzed through refined finite element models under cyclic loading. Key parameters influencing failure modes were systematically investigated. The findings reveal that: Specimens transition from flexural-shear failure to shear-dominated failure as the shear-span ratio decreases; Increased shear-span ratio reduces load-bearing capacity while enhancing structural ductility; Wall thickness variations exhibit limited impact on performance, whereas openings reduce load capacity but improve ductility; Effective composite action between precast panels and cast-in-place boundary elements with intact vertical connections demonstrates superior seismic performance. These research outcomes provide theoretical foundations and technical support for implementing this advanced structural system in urban-rural residential constructions within coal mining regions of northern Shaanxi.