机器切割料石砌筑石墙灰缝构造及抗震性能试验研究  

Experimental study on seismic behavior and mortar joint detail of machine-sawing stone masonry wall

作　　者：郭子雄[1] 柴振岭[1] 胡奕东[1] 刘阳[1] 李钢[2] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021 [2]大连理工大学建设工程学部,辽宁大连116024

出　　处：《建筑结构学报》2011年第3期64-68,共5页Journal of Building Structures

基　　金：教育部新世纪优秀人才支持计划项目(NCET-06-0571);国家"十一五"科技支撑计划项目(2006BAJ06B03);国家自然科学基金项目(50978107);华侨大学基本科研业务费专项基金项目(JB-JC1007);厦门市科技计划项目(3502Z20093029)

摘　　要：通过3片机器切割料石无垫片砌筑石墙和1片粗料石干砌甩浆砌筑石墙的低周反复荷载试验,研究了机切料石无垫片砌筑石墙抗震性能及其与传统干砌甩浆砌筑石墙在受力性能上的差异。主要研究参数包括砌筑砂浆强度、灰缝界面处理方式和灰缝水平配筋。通过对试验现象及结果的对比,分析了不同界面处理方式和砌筑方法墙体的破坏形态、滞回曲线、骨架曲线、变形能力、耗能能力和刚度退化等。试验结果表明:同干砌甩浆石墙相比,机切无垫片石墙的极限荷载均有较大幅度提高;同时设置U形钢筋剪力键和水平配筋及仅在灰缝设置U形钢筋剪力键的两种砌筑灰缝增强方式对墙体承载力影响不大,但能够提高墙体的变形和耗能能力,其中增加水平配筋的界面增强方式提高的幅度较大。Three machine-sawing stone walls and one traditional stone wall were tested under cyclic loading and constant axial load to investigate their seismic behavior.The main experimental parameters included interface processing methods and horizontal reinforcement.Based on the experimental observations and test results,the failure mechanism,strength,ductility,hysteretic behavior,and energy dissipating capacity were analyzed.Test results show that the shear strength of machine-sawing stone wall is higher than that of traditional stone wall.The two interface reinforcing methods,e.g.,only mounting U shape shear bar in martor joint or mounting both U shape shear bar and horizontal reinforcing bar as well,have little influence on the shear strength of machine-sawing stone wall,but they can improve the deformation capacity and energy dissipating capacity of the wall,especially the method of mounting both U shape shear bar and horizontal reinforcing bar in martor joint.

关 键 词：石结构 机器切割料石 条石砌筑石墙 拟静力试验 抗震性能 

分 类 号：TU363[建筑科学—结构工程] TU317.1