新型利废自保温混凝土砌块墙体热工性能及轴心受压试验研究

Experimental study on the thermal performance and the axial pressure bearing capacity of new waste utilization self-insulation concrete hollow block walls

研究了自保温混凝土砌块墙体的热工性能和抗压性能。结果表明:自保温混凝土墙体的热工性能符合JGJ134—2010《夏热冬冷地区居住节能设计标准》中规定的节能标准;自保温混凝土小型空心砌块墙体在竖向荷载作用下的破环全过程和普通混凝土空心砌块墙体基本相似,受力全过程可分为3个阶段:弹性阶段、裂缝发展阶段以及破坏阶段。通过对试验数据的回归分析,自保温混凝土砌块砌体的轴心受压承载力可参照GB50003—2001《砌体结构设计规范》中有关砌体受压承载力公式进行计算。

This paper studied the thermal performance and the compression behavior of self-insulation concrete hollow block walls. Experimental results showed that the thermal performances of the self-insulation concrete hollow block walls satisfied the en- ergy efficiency standards stipulated by the JGJ 134--2010 ＂Energy Efficiency Standards of Residential Areas with Hot Summer and Cold Winter＂. It also indicated that the compression failure process of walls was similar to ordinary concrete hollow block walls, which was divided into three stages：elastic stage,crack development stage and the destruction phase. On the basis of the regression analysis on the experimental results,the pressure bearing capacity of walls could be calculated in accordance with the formula pro- posed by the GB 50003--2001 ＂Code for Design of Masonry Structures＂.