再生混凝土无腹筋梁抗剪承载力试验研究  

Experimental study on shear behavior of recycled concrete beams without stirrup

作　　者：倪天宇[1] 孙伟民[1] 郭樟根[1] 瞿红梅[1] 沈丹[1] 丁帅[1] 

机构地区：[1]南京工业大学土木工程学院,江苏南京210009

出　　处：《四川建筑科学研究》2010年第1期5-7,共3页Sichuan Building Science

基　　金：江苏省自然科学基金资助项目(BK2005117)

摘　　要：通过对不同再生粗骨料取代率的再生混凝土简支梁的抗剪试验,研究了再生混凝土无腹筋梁斜截面受力全过程和抗剪性能。试验结果表明,再生混凝土无腹筋梁的破坏形式和受力机理与普通混凝土无腹筋梁相似,再生混凝土无腹筋梁的破坏荷载略低于普通混凝土无腹筋梁。在试验研究的基础上,提出了再生混凝土无腹筋梁斜截面抗剪承载力计算公式。This paper mainly discussed the shear behavior of simply-supported beam using recycled concrete with different replacement ratio of recycled coarse aggregate. Test results showed that the failure modes by shear and shear mechanics of recycled aggregate concrete beams without stirrup was similar to natural aggregate concrete beams＇, and the final failure load was a little lower than that of natural aggregate concrete beams＇. Based on the result of the test, the calculation formula of oblique section shear capacity is proposed.

关 键 词：再生混凝土 无腹筋梁 抗剪承载力 

分 类 号：TU375.1[建筑科学—结构工程]