高延性混凝土无腹筋梁受剪性能试验研究

邓明科; 代洁; 梁兴文; 张明玥

doi:10.6052/j.issn.1000-4750.2015.03.0209

高延性混凝土无腹筋梁受剪性能试验研究

西安建筑科技大学土木工程学院, 西安 710055

基金项目: 国家自然科学基金项目（51578445）；西安市科技计划项目（CX13135-3）

详细信息

作者简介:
代洁(1988-),女,河南洛阳人,博士生,从事高性能土木工程材料研究(E-mail:daijie880828@126.com);梁兴文(1952-),男,陕西华县人,教授,工学硕士,从事建筑结构及抗震研究(E-mail:liangxingwen2000@163.com);张明玥(1989-),女,天津人,硕士生,从事高性能土木工程材料研究(E-mail:zhangmingyued@163.com)

通讯作者:
邓明科(1979-),男,四川南充人,教授,工学博士,从事高性能土木工程材料与新型结构研究(E-mail:dengmingke@126.com).

中图分类号: TU317
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出版历程
- 收稿日期: 2015-03-19
- 修回日期: 2015-08-27
- 刊出日期: 2016-10-24

EXPERIMENTAL STUDY ON THE SHEAR BEHAVIOR OF HIGH DUCTILE FIBER REINFORCED CONCRETE BEAMS WITHOUT STIRRUPS

School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China

More Information

Corresponding author:
DENG Ming-ke: 10.6052/j.issn.1000-4750.2015.03.0209

摘要

摘要: 提出采用高延性混凝土改善梁的抗剪性能和变形能力，设计了8个高延性混凝土梁和3个作为对比试件的混凝土梁，并通过静力试验研究不同剪跨比和配筋率高延性混凝土无腹筋梁的破坏形态和破坏机理。高延性混凝土无腹筋梁的剪切破坏形态有挤压破坏、剪压破坏、弯剪破坏和剪拉破坏。试验结果表明：高延性混凝土梁的剪切破坏均表现出一定的延性，与普通混凝土梁的脆性剪切破坏具有明显不同；高延性混凝土梁的剪切裂缝开展缓慢，说明高延性混凝土良好的拉伸应变硬化和多裂缝开展特性能够有效控制剪切裂缝的发展，防止混凝土压碎剥落，显著提高梁的抗剪性能和耐损伤能力；相比普通混凝土无腹筋梁，高延性混凝土无腹筋梁的受剪承载力和变形能力均有明显提高，表明采用高延性混凝土可以显著改善无腹筋梁的脆性剪切破坏模式；剪跨比和纵筋配筋率对高延性混凝土梁的剪切破坏形态和承载力影响较大，其受剪承载力随剪跨比的增大而降低，随配筋率的增大而有所提高。
- 高延性混凝土 /
- 无腹筋梁 /
- 抗剪性能 /
- 剪跨比 /
- 纵筋配筋率
Abstract: In order to improve the shear behavior and deformability of the beams without stirrups, 8 high ductile fiber reinforced concrete (HDC) beams were designed, and 3 reinforced concrete (RC) beams were designed for comparison. The failure mechanism and mode of beams on different shear span ratios and longitudinal reinforcement ratios were studied by static loading tests. The shear failure modes of HDC beams without stirrups are extrusion failure, shear-compression failure, bending-shear failure, and shear-tension failure. The research shows that: all of HDC beams have shown ductility to some extent, which were clearly different from the shear failure mode of RC beams without stirrups; the tensile strain hardening and multiple cracking of HDC can effectively control the development of shear cracks of HDC beams during the failure process, prevent from the crushing and spalling of concrete, and significantly improve the shear capacity and damage resistance ability of HDC beams; comparing with RC beams, the shear capacity and deformability of HDC beams has been enhanced notably, which suggests that the brittle shear failure mode of beams without stirrups can be obviously improved; both the shear span ratio and longitudinal reinforcement ratio have great influences on the failure form and bearing capacity of HDC beams without stirrups. And the shear bearing capacity will be reduced when the shear span ratio is increased, and will be increased with the increase of longitudinal reinforcement ratio.
- high ductile fiber reinforced concrete /
- beams without stirrups /
- shear behavior /
- shear span ratio /
- longitudinal reinforcement ratio

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参考文献(19)

[1]	Li V C, Leung C K Y. Steady state and multiple cracking of short random fiber composites[J]. Journal of Engineering Mechanics, ASCE, 1992, 188(11):2246-2264.
[2]	Li V C. ECC-tailored composites through micromechanical modeling[C]//Montreal:Canadian Society of Civil Engineering, 1998:64-97.
[3]	Li V C. On engineered cementitious composite (ECC) a review of the material and its applications[J]. Journal of Advanced Concrete Technology, 2003, 1(3):215-230.
[4]	Li V C, Wang S, Wu C. Tensile strain-hardening behavior of PVA-ECC[J]. ACI Materials Journal, 2001, 98(6):483-492.
[5]	Li V C, Mishra D K, Naaman A E, et al. On the shear behavior of engineered cementitious composites[J]. Advanced Cement Based Materials, 1993, 1(3):142-149.
[6]	Kanakubo T, Shimizu K. Evaluation of bending and shear capacities of HPFRCC members toward the structural application[C]. Japan, Sapporo:Proceeding of the Hokkaido University COE Workshop on High Performance Fiber Reinforced Composites for Sustainable Infrastructure System-material Modeling, Structural Design and Application, 2007:1-10
[7]	Fischer G, Li V C. Influence of matrix ductility on the tension-stiffening behavior of steel reinforced ECC[J]. ACI Structural Journal, 2002, 99(1):104-111.
[8]	Fischer G, Li V C. Effect of matrix ductility on deformation behavior of steel reinforced ECC flexural members under reversed cyclic loading conditions[J]. ACI Structural Journal, 2002, 99(6):781-790.
[9]	Shimizu K, Kabele T, Kanda T, et al. Shear behavior of steel reinforced PVA-ECC beams[C]. Vancouver B C & Canada:Proceedings of 13th World conference on Earthquake Engineering, 2004:704-712.
[10]	Ashour S A, Hasanain G S, Wafa F F. Shear behavior of high-strength fiber reinforced concrete beams. ACI Structural Journal, 1992, 89(2):176-184.
[11]	Voo Y L, Poon W K, Foster S J. Shear strength of steel fiber-reinforced ultrahigh-performance concrete beams without stirrups[J]. Journal of Structural Engineering, 2010, 136(11):1393-1400.
[12]	Kanda T, Watanabe S, Li V C. Application of pseudo strain hardening cementitious composites to shear resistance structural elements[C]. Freiburg:Aedificatio Publishers, Proceedings of Fracture Mechanics of Concrete Structures, 1998:1477-1490.
[13]	邓明科, 寇佳亮, 梁兴文, 等. 延性纤维混凝土剪力墙抗震性能试验研究[J]. 工程力学, 2014, 31(7):170-177. Deng Mingke, Kou Jialiang, Liang Xingwen, et al. Experimental investigation on seismic behavior of ductile fiber reinforced concrete shear walls[J]. Engineering Machanics, 2014, 31(7):170-177. (in Chinese)
[14]	梁兴文, 车佳玲, 邓明科. 对角斜筋小跨高比纤维增强混凝土连梁抗震性能试验研究[J]. 建筑结构学报,2014, 34(8):135-141. Liang Xingwen, Che Jialing, Deng Mingke. Experimental research on seismic behavior of diagonally reinforced FRC coupling beams with small span-to-depth ratio[J]. Journal of Building Structures, 2014, 34(8):135-141. (in Chinese)
[15]	寇佳亮, 邓明科, 梁兴文. 延性纤维增强混凝土单轴拉伸性能试验研究[J]. 建筑结构. 2013, 43(1):59-64. Kou Jialiang, Deng Mingke, Liang Xingwen. Experimental study of uniaxial tensile properties of ductile fiber reinforced concrete[J]. Building Structure, 2013, 43(1):59-64. (in Chinese)
[16]	邓明科, 秦萌, 梁兴文. 高延性纤维混凝土抗压性能试验研究[J]. 工业建筑, 2015, 45(4):120-126. Deng Mingke, Qin Meng, Liang Xingwen. Experimental study of compressive behavior of engineered cementitious composites[J]. Industrial Construction, 2015, 45(4):120-126. (in Chinese)
[17]	邓明科, 孙宏哲, 梁兴文, 等. 延性纤维混凝土抗弯性能试验研究[J]. 工业建筑, 2014, 20(5):85-90. Deng Mingke, Sun Hongzhe, Liang Xingwen, et al. Experimental study on flexural behavior of ductile fiber reinforced concrete[J]. Industrial Construction, 2014, 20(5):85-90. (in Chinese)
[18]	GB/T 50152-2012, 混凝土结构试验方法标准[S]. 北京:中国建筑工业出版社, 2012. GB/T 50152-2012, Standard for test method of concrete structures[S]. Beijing:China Architecture & Building Press, 2012. (in Chinese)
[19]	GB 50010-2010, 混凝土结构设计规范[S]. 北京:中国建筑工业出版社, 2010. GB 50010-2010, Code for design of concrete structures[S]. Beijing:China Architecture & Building Press, 2010. (in Chinese)

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