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提出一种适用于低层或多层农房建筑的装配式轻型钢管再生混凝土框架-轻墙结构,框架由轻型钢管再生混凝土梁、柱及连接节点螺栓连接而成,轻墙为单排配筋再生混凝土薄墙板,框架与轻墙之间通过构造钢板进行螺栓连接,形成共同工作的受力体系.框架承担主要竖向荷载,同时与轻墙共同工作提供水平抗侧力.为研究钢筋间距、墙体厚度对装配式轻型钢管再生混凝土框架-轻墙结构中框架与墙体共同工作性能的影响,进行了4个装配式轻型钢管再生混凝土框架-轻墙试件及1个空框架试件的低周反复荷载试验,分析了配筋间距、墙体厚度对试件损伤演化过程、滞回特性、承载力、延性、刚度以及耗能性能的影响.结果表明:轻型钢管再生混凝土框架-轻墙结构具有良好的共同工作性能,有明确的两道抗震防线;轻墙破坏形态为剪切破坏,随后框架压弯破坏,装配式连接构造安全可靠,结构具有良好的延性;缩小配筋间距、增加墙体厚度可提高轻型钢管再生混凝土框架-轻墙结构的延性和耗能能力.
A lightweight light steel tubular recycled concrete frame-light-wall structure is proposed which is suitable for low-rise or multi-storey buildings. The frame is made of lightweight steel tube recycled concrete beams, columns and connecting nodes bolted together, The concrete thin-walled wall, the frame and the light wall are bolted together by the structural steel plate to form a joint force system.The frame takes the main vertical load and works with the light wall to provide the horizontal anti-lateral force.In order to study the reinforcement spacing, Wall thickness on the co-working performance of the frame and the wall of light steel tubular recycled concrete frame-light-wall structure, four assembled lightweight steel tube recycled concrete frame-light wall specimens and one empty frame specimen The influence of reinforcement spacing and wall thickness on the damage evolution, hysteretic characteristics, bearing capacity, ductility, stiffness and energy dissipation performance of the specimens were analyzed.The results show that the light steel tubular recycled concrete frame-light wall The structure has a good common work performance, there are two clear anti-seismic lines; light wall failure mode is shear failure, followed by frame bending damage, assembly type connection structure Safe and reliable, structure with good ductility; reinforcement narrow pitch, increasing the wall thickness to improve reproduction light steel frame concrete - wall light ductility and energy dissipation capacity of the structure.