页岩烧结保温砌块超薄灰缝砌体剪压复合受力性能试验研究  

EXPERIMENTAL STUDY ON SHEAR-COMPRESSION BEHAVIOR OF SHALE FIRED HEAT-INSULATION BLOCK MASONRY WITH ULTRA-THIN MORTAR JOINT

作　　者：浮广明[1,2] 白国良[2] 权宗刚[1,2] 肖慧[1] 王辉 陆文斌[2] 

机构地区：[1]西安墙体材料研究设计院,西安710061 [2]西安建筑科技大学土木工程学院,西安710055 [3]新疆凯乐新材料有限公司,乌鲁木齐830009

出　　处：《工业建筑》2015年第12期131-136,共6页Industrial Construction

基　　金：国家科技支撑计划课题(2011BAJ04B01;2011BAJ04B01-02;2011BAJ08B05-4;2012BAJ19B04-02)

摘　　要：为了解实际页岩烧结保温砌块房屋在横向荷载和竖向荷载共同作用下的受力性能,根据竖向压应力的不同设计并制作了6组36个剪压试件,通过自行设计的自平衡剪压加载装置进行页岩烧结保温砌块超薄灰缝砌体剪压复合受力性能试验。试验结果表明:剪压复合受力作用下试件分为剪摩破坏、剪压破坏和局部破坏3种破坏形态;根据剪压试验结果绘制了页岩烧结保温砌块砌体剪压相关曲线,并提出了剪压相关曲线方程;在该方程基础上,结合现有的变摩擦系数剪摩理论,得到页岩烧结保温砌块砌体静力抗剪强度计算式,并将该式与现有的砌体静力抗剪强度计算式进行比较,发现所提出的算式与试验结果符合较好,建议采用该算式作为页岩烧结保温砌块砌体静力抗剪强度计算表达式。In order to reveal the mechanical properties of shale fired heat-insulation block buildings in the horizontal load and vertical load,six groups including 36 shear-compression specimens were designed by different vertical compressive stress,and tested by self-balanced loading device. The test results indicated that the failure modes of shear-friction,shear-compression,partial failure were summarized in the action of shear-compression force. The shear-compression curve of shale fired heat-insulation block masonry was drawn, and the equation of shearcompression curve was proposed; on the basis of the equation and the existing shear-friction theory with variable friction coefficient,the static shear strength formula of shale fired heat-insulation block masonry was got,which was compared with the existing static shear strength formula,the formula was consistent with the test results,it was suggested that the formula should be used as the static shear strength formula of shale fired heat-insulation block masonry.

关 键 词：页岩烧结保温砌块 专用砌筑砂浆 超薄灰缝 剪压曲线 静力抗剪强度 

分 类 号：TU364[建筑科学—结构工程]