同缝砌筑的N式砌块砌体受压性能研究  

RESEARCH ON COMPRESSIVE BEHAVIORS OF N-TYPE BLOCK MASONRY WITH STRAIGHT JOINT

作　　者：黄靓[1] 陶承志[1] 许斌[1] 梅文胜[2] 陈良[2] 王珂[1] 吴昊[1] 

机构地区：[1]湖南大学土木工程学院,长沙410082 [2]中冶长天国际工程有限责任公司土建分院,长沙410007

出　　处：《工业建筑》2009年第7期48-51,86,共5页Industrial Construction

基　　金：湖南省建设科技项目(2008-23)

摘　　要：N式砌块通过对砌块块形的改进实现了在砌筑砌体时孔、肋完全对齐,N式砌块在半灌孔和全灌孔时可以同缝砌筑。研究了同缝砌筑的半灌孔N式砌块砌体受压性能,了解了N式砌块砌体在同缝砌筑下的破坏形态及破坏机理。试验结果,同缝砌筑的半灌孔N式砌块砌体的抗压强度平均值比普通砌块的抗压强度平均值高出30%左右,分析表明,其强度提高的主要原因是孔洞对齐和砌块块体的约束作用。给出了N式砌块砌体同缝抗压强度平均值的计算公式,与试验结果吻合良好。N-type concrete masonry is a new type of small-size concrete block masonry by improving the block shape to realize fully aligned web-shells. And,N-type masonry could be built with straight joint. Based on 6 half-grouted specimens, the compressive behaviors of N-type masonry were investigated. Test results showed that the average compressive strength of half-grouted N-type masonry was about 30% higher than that of the common concrete masonry. The main reason for the strength rising was the full-alignment of web-shells in N-type concrete masonry prisms. And a formula of average compressive strength of half-grouted N-type masonry was given, whose result agreed well with the result of test.

关 键 词：N式砌块 半灌孔N式砌块砌体 同缝 抗压强度 弹性模量 

分 类 号：TU364[建筑科学—结构工程] TU754.1