[1]张雷顺,张晓磊,闫国新..再生混凝土无腹筋梁斜截面受力性能试验研究[J].郑州大学学报(工学版),2006,27(02):18-23.[doi:10.3969/j.issn.1671-6833.2006.02.005]
　ZHANG Leishun,ZHANG Xiaolei,Yan Guoxin.Experimental study on stress performance of oblique section of reclaimed concrete without rib beam[J].Journal of Zhengzhou University (Engineering Science),2006,27(02):18-23.[doi:10.3969/j.issn.1671-6833.2006.02.005]

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再生混凝土无腹筋梁斜截面受力性能试验研究()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

27卷

期数:

2006年02期

页码:

18-23

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Experimental study on stress performance of oblique section of reclaimed concrete without rib beam

作者:

张雷顺; 张晓磊; 闫国新.

郑州大学环境与水利学院,河南,郑州,450002, 郑州大学环境与水利学院,河南,郑州,450002, 郑州大学环境与水利学院,河南,郑州,450002

Author(s):

ZHANG Leishun; ZHANG Xiaolei; Yan Guoxin

关键词:

再生混凝土;  梁;  无腹筋梁;  受剪承载力

Keywords:

recycled concrete;  beams;  no rib bridge;  Shear bearing capacity

DOI:

10.3969/j.issn.1671-6833.2006.02.005

文献标志码:

A

摘要:

通过13根再生混凝土梁和普通混凝土梁的对比试验,探讨了再生骨料取代率、剪跨比等因素对再生混凝土梁斜截面受力性能的影响.试验结果表明:再生混凝土梁比普通混凝土梁变形和斜裂缝宽度大;再生混凝土梁的破坏形式与剪跨性有关,λ≤1发生斜压破坏,1.5≤λ＜3发生剪压破坏,λ≥3.0发生斜拉破坏.再生混凝土梁随着再生骨料取代率的增加,抗剪承载力有下降的趋势;随着剪跨比的增加,抗剪承载力减小.在试验研究的基础上,根据极限平衡理论,提出了再生混凝土梁受剪承载力计算公式.

Abstract:

Through the comparative test of 13 recycled concrete beams and ordinary concrete beams, the effects of recycled aggregate substitution rate and shear-span ratio on the oblique section stress performance of recycled concrete beams were discussed. The test results show that the deformation and oblique crack width of the recycled concrete beam are larger than that of ordinary concrete beam. The failure form of recycled concrete beams is related to shear span, λ≤1 oblique compression failure, 1.5≤λ<3 shear failure, λ≥3.0 diagonal failure occurs.With the increase of recycled aggregate replacement rate, the shear bearing capacity of recycled concrete beams has a downward trend. With the increase of shear span ratio, the shear bearing capacity decreases. On the basis of experimental research, according to the limit equilibrium theory, the calculation formula of the shear bearing capacity of recycled concrete beams is proposed.

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