【作者】 贺艳丽； 姜洪斌；

【Author】 HE Yanli,JIANG Hongbin (School of Civil Engineering,Harbin Institute of Technology,Harbin 150090)

【机构】 哈尔滨工业大学土木工程学院；

【摘要】 本文完成了24个配置有横向约束件的灌芯混凝土砌块砌体的轴压试验,横向约束件是指配置在水平灰缝或水平凹槽中的箍筋和钢板,试验表明:配置了箍筋、钢板等横向约束件以后,试件的承载能力、极限变形均有一定程度的提高,而且试件的破坏形态有较大的改善,体现较好的延性性能。参考约束混凝土的强度计算方法,本文提出适合约束灌芯砌块砌体强度的计算公式,计算值与试验值吻合良好。更多还原

【Abstract】 24 pieces of grouted concrete block masonry with transverse confined action were tested under axial compression loading. The transverse confined action is the hoop reinforcement and plates which are reinforced in the transverse mortar sew or groove of masonry.The results indicate that the axial compressive strength and ultimate distortion capacity of the masonry are improved by the transverse confining hoop reinforcement and plate.The failure strain and ductility are also efficiently improved.Based on the strength caluclation model of the confined concrete,a formula to calculate the ultimate compression strength of grouted concrete block masonry with transverse confined action is developed.The results of the calculation have good match with that of experiments.更多还原