改性砂浆-橡胶束滑移隔震墙试验研究

发布时间：2018-05-03 23:02

本文选题：砌体结构 + 滑移隔震　；参考：《建筑结构学报》2015年S2期

【摘要】：为提高村镇砌体建筑抗震性能,提出了一种适用于村镇低层砌体建筑的改性砂浆-橡胶束滑移隔震技术。对1片未设置隔震措施普通墙及2片不同构造滑移隔震层砌体墙进行了低周反复试验,分析了墙体破坏形态、滞回曲线、骨架曲线、延性、刚度退化和耗能能力。研究结果表明:与无隔震措施普通墙相比,改性砂浆-橡胶束滑移隔震墙未出现破坏,滞回环饱满,延性好,刚度退化慢,耗能能力强,造价低廉。其中钢珠-改性砂浆隔震层适用于7、8度抗震设防烈度区,低标号改性砂浆隔震层适用于7(0.15g)度及以上的高烈度区。橡胶束作为限位材料,限位性能好。改性砂浆-橡胶束隔震技术可在高地震烈度冻土区村镇砌体建筑中推广使用。
[Abstract]:In order to improve the seismic performance of masonry buildings in villages and towns, a modified mortar and rubber beam sliding isolation technology is proposed for the low story masonry buildings in villages and towns. Low cycle repeated tests were carried out on one ordinary wall without isolation measures and two masonry walls with sliding isolation layers with different structures. The failure pattern, hysteretic curve, skeleton curve, ductility, stiffness degradation and energy dissipation capacity of the wall were analyzed. The results show that, compared with the ordinary wall without isolation measures, the modified mortar and rubber beam slip isolation wall has no damage, full hysteretic loop, good ductility, slow stiffness degradation, strong energy dissipation and low cost. The steel bead modified mortar isolation layer is suitable for the 7 ~ 8 degree seismic fortification area, and the low grade modified mortar isolation layer is suitable for the high intensity area of 7 ~ 0. 15 g) and above. As limiting material, rubber bundles have good limiting performance. Modified mortar-rubber beam isolation technology can be widely used in village masonry buildings with high seismic intensity.
【作者单位】：石河子大学水利建筑工程学院;重庆大学土木工程学院;
【基金】：国家自然科学基金项目(51368054) 兵团科技援疆专项项目(2014AB053)
【分类号】：TU352.12

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