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新型混凝土砌块EPS复合墙体抗剪承载力的计算
引用本文:汤伟忠,何明胜,郁晓玲.新型混凝土砌块EPS复合墙体抗剪承载力的计算[J].石河子大学学报,2014,32(4):511-516.
作者姓名:汤伟忠  何明胜  郁晓玲
作者单位:石河子大学水利建筑工程学院,石河子,832003
基金项目:国家自然科学基金项目,石河子大学高层人才科研项目
摘    要:新型混凝土砌块EPS复合墙体是由轻质混凝土空心砌块做为外模,EPS混合土做为内模组合而成。为研究该新型墙体的抗剪性能,本文设计了不同高宽比、竖向正应力、以及不同内芯强度的该新型复合墙体1/2缩尺模型共6片,通过低周反复试验得出该新型复合墙体极限抗剪强度,采用以该新型复合墙体抗压强度的函数来表示其抗剪强度。对实测数据回归分析,建立出适合该新型墙体的抗剪理论计算公式:V_u≤1/(0.281+1.255λ)(0.20(f_(G,m)~(1/2))bh_0+0.12N),该公式具有一定的理论依据和实用价值,可供实际工程设计参考使用。

关 键 词:新型混凝土砌块EPS组合墙体  受剪机理  抗剪承载力  低周反复试验

The Calculation of Shear Strength of a New Concrete Block-EPS Composite Wall
TANG Weizhong,HE Mingsheng,YU Xiaoling.The Calculation of Shear Strength of a New Concrete Block-EPS Composite Wall[J].Journal of Shihezi University(Natural Science),2014,32(4):511-516.
Authors:TANG Weizhong  HE Mingsheng  YU Xiaoling
Institution:(College of Water Conservancy and Architectural Engineering,Shihezi University,Shihezi 862003,China)
Abstract:A New concrete block-EPS composite wall is composed by a light hollow concrete block as the outer model and EPS mixed soil as intemal model combination.This paper designs a 1/2 sacle model of the new composite wall with different height width ratio,vertical stress, as well as the core strength. Based on the measurement of the new wall in MTS cyclic load test, the shear bearing capacity is obtained.The MTS cyclic load test experimental data is analyzed by regression analysis,and finally get a shear theory calculation formula:V_u≤1/(0.281+1.255λ)(0.20(f_(G,m)~(1/2))bh_0+0.12N).The formula suit well for the newcomposite wall which can supply reference for engineering design.
Keywords:New concrete block-EPS composite wall  shear mechanism  shear strength capacity  MTS cyclic load test
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