蒸压粉煤灰砖墙片抗震性能试验  

Experimental Study on the Seismic Behavior of Autoclaved Fly Ash Brick Walls

作　　者：赵成文[1] 尚义明[1] 周康[1] 乔辉[1] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《沈阳建筑大学学报（自然科学版）》2010年第1期57-61,67,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：建设部基金项目(2006-12-05)

摘　　要：目的研究蒸压粉煤灰实心砖墙体抗震性能、破坏形态和设计方法,为编制蒸压粉煤灰砖技术规程提供依据.方法通过对3片蒸压粉煤灰砖墙片在低周往复水平荷载作用下试验,分析墙片的破坏特征.结果得到墙片的滞回曲线、骨架曲线、延性系数;蒸压粉煤灰实心砖素墙片在伪静力作用下为脆性破坏,抗剪承载力较高,抗震性能较差,延性较差;蒸压粉煤灰砖墙片延性比为3.64～4.31;试件承载力实测值是验算值的1.76～3.08倍.结论蒸压粉煤灰砖墙体抗震能力是偏于安全的,笔者所提建议可供编制蒸压粉煤灰砖建筑技术规程参考.The purpose of this paper focuses on the seismic behavior as well as failure pattern Of autoclaved fly ash brick walls in order to offer the basis for preparing technical regulations of autoclaved fly ash bricks. The experiment on three pieces of autoclaved fly ash brick walls were carded out with low cyclic repeated horizontal loading to investigate failure characteristics. Hysteresis curve, skeleton curve and ductility coefficient of walls were obtained. The experimental study shows that autoclaved fly ash solid brick wall possesses the characteristics of brittle fracture, higher shear strength, poor seismic performance, and poor ductility under the condition of pseudo-static influence. The ductility of autoclaved fly ash brick walls is 3.64 - 4.31. The seismic shear capacity of measured value of experiment is 1.76 - 3.08 times of the calculation value. The seismic capacity of autoclave coal ash brick wall is safe. The proposal given in this paper offers a reference to preparing technical regulations of autoclaved fly ash bricks.

关 键 词：蒸压粉煤灰砖 低周往复荷载 抗震性能 抗剪承载力 

分 类 号：TU312[建筑科学—结构工程]