再生混凝土多孔砖墙体受压承载力试验研究  

Experimental study on pressure bearing capacity of recycled aggregate concrete perforated brick walls

作　　者：郭樟根[1] 徐一凡[1] 孙伟民[1] 沈丹[1] 陈建龙[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《新型建筑材料》2011年第2期61-63,共3页New Building Materials

基　　金：国家自然科学基金项目(50708045);江苏省六大人才高峰基金资助项目(07-F-015)

摘　　要：再生骨料替代率为75%,再生混凝土多孔砖强度等级接近MU10。考察再生混凝土多孔砖墙体的受压性能,通过对2片再生混凝土多孔砖墙体进行轴心竖向荷载作用下的试验研究。结果表明,再生混凝土多孔砖墙体在竖向荷载作用下的破环全过程和普通混凝土多孔砖墙体基本相似,受力全过程分为3个阶段:弹性阶段、裂缝发展阶段以及破坏阶段。偏于安全考虑,再生混凝土多孔砖砌体的轴心受压承载力可参照GB50003—2010《砌体结构设计规范》(征求意见稿)中有关砌体受压承载力计算公式进行计算。The strength grade of recycled concrete perforated brick wall is close to MUIO when the replacement ratio of recycled aggregate is 75%. The compressive performance of the recycled concrete perforated brick wall was investigated by the experimental study on two recycled concrete perforated brick walls under the function of axial vertical loading. The results show that the compression failure process of recycled concrete perforated brick wall is similar to that of ordinary concrete brick walls, which was divided into three stages：elastic stage,crack development stage and the destruction phase. For the sake of safety,the calculation of axial pressure bearing capacity of recycled concrete perforated brick wall can be made with reference to the formula for pressure bearing capacity of masonry as specified in standard GB 50003--2010 ＂Masonic Structure Design Code＇（Draft）.

关 键 词：再生混凝土多孔砖 墙体 受压承载力 破坏形态 

分 类 号：TU522.39[建筑科学—建筑技术科学]