侯和涛+程积润+曲哲+付玮琪+曲冰+崔士起+石磊+朱文灿+马天翔

摘 要：为研究新型钢管混凝土边缘约束叠合剪力墙的抗震性能，设计制作了3片钢管混凝土边缘约束叠合剪力墙和1片现浇钢筋混凝土剪力墙足尺试件进行静力往复加载试验，试验中考虑了3种不同的墙身厚度取值，以考察高厚比对剪力墙抗震能力的影响.通过试验，对比分析了剪力墙的承載力、延性、刚度及其退化、滞回特性、耗能能力及破坏特征.建立了新型钢管混凝土边缘约束叠合剪力墙的承载力计算模型，计算结果与实测结果吻合较好.研究表明：新型钢管混凝土边缘约束叠合剪力墙结合了钢筋混凝土剪力墙侧向刚度和承载力大与钢管混凝土边缘约束延性好的优势，其承载力、刚度和耗能能力较现浇钢筋混凝土剪力墙有所提高；在所试验的参数范围内，高厚比对剪力墙的力学性能影响不大.

关键词：钢管混凝土；叠合剪力墙；拟静力试验；高厚比；抗震性能

中图分类号：TU375 文献标志码：A

文章编号：1674-2974（2017）05-0027-10

Abstract：To study the seismic performance of a new concrete filled tube-confined sandwich shear wall （CFT-SSW）， cyclic loading tests were carried out on three CFT-SSW specimens with different depth-thickness ratios and one conventional concrete shear wall specimen for comparison. The load-carrying capacity， ductility， stiffness and their degradation， hysteretic and energy dissipation characteristics， and failure modes of the specimens were investigated and compared. Equations for prediction of the strength of CFT-SSWs were also proposed. The calculated strengths were in good agreement with the test results. The results show that CFT-SSWs exhibited both the high lateral stiffness and strength due to reinforced concrete shear walls and the superior ductility due to concrete filled tubes. The strength， ductility， and stiffness of CFT-SSW specimens were greater than those of the cast-in-situ concrete shear wall specimens. In addition， the depth-thickness ratio has only marginal effects on the seismic behavior of the CFT-SSWs within the test range of the current tests.

Key words：concrete filled steel tube； sandwich shear wall； quasi-static test； depth-thickness ratio； seismic behavior

随着我国建筑产业现代化的发展，高层建筑（特别是高层住宅）中预制剪力墙的应用较为广泛.国内预制钢筋混凝土剪力墙的研究主要针对全预制混凝土剪力墙、半预制混凝土剪力墙以及叠合式剪力墙，开展了大量的试验研究和数值分析，并对装配式剪力墙进行了抗震性能试验研究，得到了大量装配式剪力墙的抗震性能试验数据[1-5].蒋庆等提出了叠合式剪力墙的力学计算模型并对其进行耗能分析，计算结果与实测结果符合良好[6-7]；……