新型混凝土横孔空心砌块砌体受压性能研究  

Research on the Compression Behavior of a New Type of Concrete Horizontal-hole Hollow Block Masonry

作　　者：吴方伯[1] 陈伟[1] 黄海林[1] 周绪红[1,2] 

机构地区：[1]湖南大学土木工程学院建筑安全与节能教育部重点实验室,湖南长沙410082 [2]兰州大学土木工程与力学学院,甘肃兰州730000

出　　处：《湖南大学学报（自然科学版）》2010年第11期1-5,共5页Journal of Hunan University:Natural Sciences

基　　金：国家自然科学基金资助项目(50978090);国家'十一五'科技支撑计划项目(2006BAJ02B07);湖南省自然科学基金资助项目(OZJJY3061)

摘　　要：针对混凝土竖孔空心砌块存在的热、渗、裂等问题,提出并研究了一种混凝土横孔空心砌块.通过对9组(共54个)这种混凝土横孔砌块砌体的受压性能试验研究,了解了这种新型横孔砌块砌体的变形特征及破坏机理.基于试验结果并参考现行国家规范,提出了这种新型横孔砌块砌体的抗压强度计算方法.通过引入砌体对数型应力-应变关系模型,得到了这种新型横孔砌块受压应力-应变计算公式和弹性模量计算方法,对比结果表明,弹性模量计算值与试验值吻合良好.本文工作解决了新型横孔砌块抗压强度设计问题,为单轴受压下新型横孔砌块的内力分析和有限元分析提供了重要依据.There are many problems in the engineering application of concrete vertical-hole hollow block masonry,for instance,poor thermal insulation,seepage and crack.To solve these problems,a new type of concrete horizontal-hole hollow block masonry was developed.9groups with 54compressive specimens of the new type masonry were tested,and the deformation characteristic and the failure mechanism of the new type block masonry were obtained.Based on the experiment results and by reference to the current national standards,a new compressive strength formula was proposed.The stress-strain formula and elasticity modulus computational method for the new block masonry were proposed by using a logarithmic function model.The significance of this paper is to implement the strength design for the new type masonry and provide a basis to stress analysis and finite element analysis under uniaxial compression behavior.

关 键 词：横孔 空心砌块 受压性能 弹性模量 单轴受压 

分 类 号：TU311.4[建筑科学—结构工程] TU362