(1 大连理工大学土木水利学院, 大连 116023； 2 沈阳建筑大学土木工程学院, 沈阳 110168)

［摘要］为研究偏心距e对蒸压粉煤灰实心砖砌体承载力性能的影响，以e为主要参数，对24个蒸压粉煤灰实心砖砌体试件及4个普通粘土砖砌体试件进行偏心受压试验。试验结果表明，砌体的偏心受压承载力随e值的增加线性降低，偏心影响系数φ的试验值略低于规范计算值。建议蒸压粉煤灰实心砖单向偏心受压构件的偏心距限值取0.6y，并通过试验回归对规范中φ的计算式进行了调整，其计算结果与试验结果相近。

［关键词］砌体；蒸压粉煤灰实心砖；承载力；偏心影响系数

Experimental study on the capacity for autoclaved fly ash solid brick masonry subjected to eccentric load

Xu Chunyi^1，2, Liu Ming², Zhang Yannian²(1 Dalian University of Technology, Dalian 116023, China; 2 Shenyang Jianzhu University, Shenyang 110168, China)

Abstract:The influence of eccentricity on the capacity of autoclaved fly ash solid brick is studied. Eccentricity is the main parameter. Eccentric compression tests were proceeded on 24 autoclaved fly ash solid brick masonry samples and 4 common clay brick masonry samples. Its damage pattern was analyzed. The experiment indicates that eccentric compression capacity according to a certain proportion decrease as e/y increase; eccentric effect factor is slightly lower than code values. It is suggested that the limit value of eccentricity of autoclaved fly ash solid brick under unidirectional eccentric compression adopts e=0.6y. And the formula of eccentric effect factor in code is adjusted. The proposed formula of the eccentric compression bearing capacity of autoclaved fly ash solid brick masonry is given.

Keywords:masonry; autoclaved fly ash solid brick; capacity; eccentric effect factor

*国家十一五科技支撑计划项目(2006BAJ03A01)。

作者简介：徐春一，博士研究生，Email：xuchunyiyi@163.com。

参考文献

［1］GB50003—2001砌体结构设计规范［S］.北京:中国建筑工业出版社,2001.

［2］肖建庄,王幸,胡永忠，等.再生混凝土空心砌块砌体受压性能［J］.结构工程师,2006,22(3):68-71.

［3］翟希梅,于芳.配筋砌块墙体平面外偏心受压承载能力的分析［J］.建筑砌块与砌块建筑,2006(2).

［4］BRYAN D E, MERVYN J K. Compressive behavior of unconfined and confined clay brick masonry［Ｊ］. Journal of Structural Engineering, 2004,130:650661.

［5］GBJ129—90砌体基本力学性能试验方法标准［S］.北京:中国建筑工业出版社,1994.

［6］施楚贤.砌体结构理论与设计(第二版)［M］.北京:中国建筑工业出版社,2003.

［7］刘桂秋,施楚贤.砌体双向偏心受压构件承载力的设计方法［J］.建筑结构 2003，33(3).

［8］唐岱新.砌体结构［M］.北京:高等教育出版社,2003.