[1]张兴虎,李 婷,姜维山.混凝土短梁斜向开裂后的有效剪切刚度与变形[J].西安建筑科技大学学报:自然版,2016,48(01):58-62.[doi:10.15986/j.1006-7930.2016.01.010]
 ZHANG Xinghu,LI Ting,JIANG Weishan.Effective shear stiffness and deformation of concrete short beams after diagonal cracking[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2016,48(01):58-62.[doi:10.15986/j.1006-7930.2016.01.010]
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混凝土短梁斜向开裂后的有效剪切刚度与变形()
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西安建筑科技大学学报:自然版[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年01期
页码:
58-62
栏目:
出版日期:
2016-02-28

文章信息/Info

Title:
Effective shear stiffness and deformation of concrete short beams after diagonal cracking
文章编号:
1006-7930(2016)01-0058-05
作者:
张兴虎李 婷姜维山
西安建筑科技大学土木工程学院,陕西 西安 710055
Author(s):
ZHANG Xinghu LI Ting JIANG Weishan
School of Civil Engineering, Xi’an Univ. of Arch. & Tech., Xi’an 710055, China
关键词:
短梁有效剪切刚度斜裂缝变角桁架模型内插法
Keywords:
short beam effective shear stiffnessdiagonal crack variable angle truss model interpolation
分类号:
TU375.1
DOI:
10.15986/j.1006-7930.2016.01.010
文献标志码:
A
摘要:
为了研究钢筋混凝土短梁有效剪切刚度的计算,根据以往试验资料分析了短梁开裂后的斜裂缝形态及其发展,探讨了此阶段的剪切刚度变化规律;在变角桁架模型的基础上运用内插法得出混凝土从斜向开裂至0.8Fu 阶段的有效剪切刚度,进而计算出相应的剪切变形和挠度,并与试验结果进行比较;此外,将计算值与其它三种方法的计算值进行了对比分析.结果表明,按本方法计算出的挠度值与试验值符合较好;相对于其它方法,本方法能较好地预测短梁自斜向开裂至0.8Fu 阶段的变形,且提高了计算精度.
Abstract:
To study the calculation of effective shear stiffness of reinforced concrete short beam, the shapes and developments of the diagonal crack after the short beam cracking were analyzed according to the previous test data, and the variation of shear stiffness in this stage was discussed. Based on the variable angle truss model, the effective shear stiffness of short beam from diagonal cracking to 0.8Fu was obtained by using the interpolation. Then the corressponding shear deformation and deflection were calculated, and compared with experimental results. In addition, a contrastive analysis of the calculated values of this method and other three methods were carried out. The results show that the deflection values calculated by this method are in good agreement with the experimental values. Compared with others, the proposed approach can better predict the deflections of the short beam from diagonal cracking to 0.8Fu , and improve the accuracy of calculation.

参考文献/References:

 [1] 梁兴文, 史庆轩. 混凝土结构设计原理[M].北京: 中国建筑工业出版社, 2007.
LIANG Xingwen, SHI Qingxuan. Principle for design of concrete structures[M].Beijing: China Architecture and Building Press, 2007.
[2] 混凝土结构设计规范: GB50010-2010. [S].北京: 中国建筑工业出版社, 2010.
Code for design of concrete structures: GB50010-2010. [S]. Beijing: China Building Industry Press, 2010.
[3] 熊进刚. 转换层钢筋混凝土短梁受剪性能试验研究[D].南京: 东南大学, 2001.
XIONG Jingang. Experimental research on shear properties of reinforced concrete short beams in transfer floor[D]. Nanjing: Southeast University, 2001.
[4] 高丹盈, 袁媛, 赵军, 等.钢筋钢纤维混凝土短梁刚度试验研究[A].纤维混凝土的技术进展与工程应用—第十一届全国纤维混凝土学术会议论文集[C]//大连:2006: 315-320.
GAO Danying, YUAN Yuan, ZHAO Jun, et al. Experimental research on the stiffness of steel fiber reinforced concrete short beams[A].Technological Progress and Engineering
Application of Fiber Reinforced Concrete--Proceedings of the 11th China Conference on Fiber Reinforced Concrete[C]//Dalian: 2006.315-320.
[5] PARK R, PAULAY T.钢筋混凝土结构[M].秦文钺, 译.重庆: 重庆大学出版社, 1985.
PARK R,PAULAY T. Reinforced concrete structures[M]. QIN Wenyue, Translated Chongqing: Chongqing University Press, 1985.
[6] 吕志涛, 潘钻峰. 斜向开裂混凝土梁的瞬时及长期剪切变形[J].建筑科学与工程学报, 2010,27(2): 1-9.
LÜ Zhitao, PAN Zuanfeng. Instantaneous and long-term shear deformations of inclined crack concrete beams[J].Journal of Architecture and Civil Engineering, 2010,27(2): 1-9.
[7] PAN Zuanfeng, LI Bing, LU Zhitao. Effective shear stiffness of diagonally cracked reinforced concrete beams[J]. Engineering Structures, 2014,59(2): 95-103.
[8] WANG Tiao, DAI Jianguo, ZHENG Jianjun. Multi-angle truss model for predicting the shear deformation of RC beams with low span-effective depth ratios [J]. Engineering
Structures, 2015, 91: 85-95.
[9] Building code requirements for structural concrete (ACI318-08) and commentary (ACI 318R-08):ACI Committee 318 [S]. Farmington (MI): American Concrete Institute,2008.
[9] 陈肇元, 朱金铨, 吴佩刚.高强混凝土及其应用[M].北京: 清华大学出版社, 1992.
CHEN Zhaoyuan, ZHU Jinquan, WU Peigang. High-strength concrete and its application[M]. Beijing: Tsinghua University Press, 1992.
[10] 白家荣. 高强箍筋高强混凝土梁受剪性能试验研究及有限元分析[D].西安: 西安建筑科技大学, 2009.
BAI Jiarong. Experiments and finite element analysis of shear behavior for high strength concrete beams with high strength stirrups[D]. Xi’an: Xi’an Univ. of Arch. and Tech.,
2009.
[11] 潘柏荣. 高强混凝土梁抗剪性能试验研究[D].长沙: 湖南大学, 2009.
PAN Bairong. Research on shear capacity of high strength concrete beams [D].Changsha: Hunan University, 2009.
[12] 李娟. HRB500 级箍筋混凝土梁斜截面受力性能试验研究[D]. 长沙: 湖南大学, 2007.
LI Juan. Experimental study on mechanical behavior of diagonal section of reinforced concrete beams with HRB500 stirrups[D].Changsha: Hunan University ,2007.
[13] 包世华. 结构力学(上册)[M].3 版.武汉: 武汉理工大学出版社, 2007.
BAO Shihua. Structural mechanics (Volume 1) [M]. 3rd ed. Wuhan: Wuhan University of Technology Press, 2007.
[14] 王传志, 滕智明. 钢筋混凝土结构理论[M].北京: 中国建筑工业出版社, 1985.
WANG Chuanzhi, TENG Zhiming. Theory of reinforced concrete structures [M]. Beijing: China Building Industry Press, 1985.
[15] COLLINS MP. Towards a rational theory for RC members in shear[J]. Journal of the Structure Division, 1978, 104(4) : 649-666.

备注/Memo

备注/Memo:
收稿日期:2015-06-15 修改稿日期:2016-02-14
基金项目:陕西省住房和城乡建设厅项目(陕建标函[2014]5 号)
作者简介:张兴虎(1956—),男,教授级高级工程师,主要从事工程结构抗震理论及试验方法研究.E-mail: zhangxinghu@126.com
更新日期/Last Update: 2016-04-01