[1]王卫仑,王险峰,丁小波,等.混凝土超高强化对无腹筋梁剪切抗力的影响[J].深圳大学学报理工版,2012,29(No.2(095-188)):136-141.[doi:10.3724/SP.J.1249.2012.02136]
 WANG Wei-lun,WANG Xian-feng,DING Xiao-bo,et al.Effect of concrete ultrahigh strength on shear of reinforced concrete beams without web reinforcements[J].Journal of Shenzhen University Science and Engineering,2012,29(No.2(095-188)):136-141.[doi:10.3724/SP.J.1249.2012.02136]
点击复制

混凝土超高强化对无腹筋梁剪切抗力的影响()
分享到:

《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第29卷
期数:
2012年No.2(095-188)
页码:
136-141
栏目:
土木建筑工程
出版日期:
2012-03-23

文章信息/Info

Title:
Effect of concrete ultrahigh strength on shear of reinforced concrete beams without web reinforcements
作者:
王卫仑王险峰丁小波李雄
深圳大学土木工程学院,深圳市土木工程耐久性重点实验室,深圳 518060
Author(s):
WANG Wei-lun WANG Xian-feng DING Xiao-bo and LI Xiong
College of Civil Engineering, Shenzhen Durability Center of Civil Engineering, Shenzhen University, Shenzhen 518060, P.R.China
关键词:
超高强混凝土无腹筋梁压缩强度抗拉强度修正压缩区理论剪力计算式修订混凝土设计规范
Keywords:
ultrahigh strength concrete reinforced concrete beam without web reinforcements compressive strength tensile strength modified compression field theory shear equation revision of code for design of concrete structure
分类号:
TU 528.31;TU 375.1
DOI:
10.3724/SP.J.1249.2012.02136
文献标志码:
A
摘要:
对超高强混凝土无腹筋梁进行剪切试验及分析,研究混凝土强度对梁抗剪性能的影响,指出随着混凝土强度的提高,超高强梁剪切抗力的增加程度减缓.基于修正压缩区理论及剪切试验结果,对现行规范剪力计算公式中混凝土抗压强度的影响进行了修正,提出适用于超高强混凝土无腹筋梁抗剪承载力的建议式.结果表明,试验值与建议式计算值之比的均值为0.97,变异系数为24.30%,可较好反映混凝土强度对剪切承载力的影响.
Abstract:
It is aimed at studying the effect of concrete strength on shear property by experiment and calculation analysis for ultra high strength concrete beams without web reinforcements. The present investigation indicates that shear resistance of ultrahigh strength beams increase slowly with the increase of concrete compressive strength, and that shear of this kind of beam is overestimated by the current design provisions in ultrahigh strength zone. For this reason, the concrete strength effect of shear design equation was modified, and an improved shear equation was presented to apply ultrahigh strength concrete beams without stirrups based on MCFT methods and shear test results including other researcher’s experiments. The analytical results show that the mean of (test value/calculated value by the modified equation) is 0.97 with coefficient of variation of 24.30%. The recommended formula in this paper can better evaluate the influence of concrete strength on the shear bearing capacity for ultrahigh strength concrete RC beams.

参考文献/References:

[1] Architectural Institute of Japan. State-of-the-Art Report on High-strength Concrete[M]. Tokyo(Japan):Maruzen Press, 2009: 8-11.(in Japanese)
日本建築学会.高強度コンクリートの技術の現状[M]. 東京(日本): 丸善株式会社, 2009: 8-11.
[2] Hayakawa M, Namiki S, Jinnai H. Progress in high strength concrete for building construction[J]. Journal of JSMS, 2003, 52(12): 1445-1449.
[3] Walraven J. On the way to design recommendations for UHPFRC[C]//Proceedings of the Second International Symposium on Ultra High Performance Concrete. Kassel(Germany): JSCE , 2008: 45-56.
[4] Kawakana H, Sato R. Evaluation of shrinkage effects on diagonal cracking strength of reinforced HSC beams[J]. Proceedings of JSCE, 2009, 65(2): 178-197.(in Japanese)
河金甲, 佐藤良一. 高強度RCはりの斜めひび割れ発生強度に及ぼす収縮の影響評価[J]. 土木学会論文集, 2009, 65(2): 178-197.
[5] GB50010-2010. Code for design of concrete structures[S].(in Chinese).
GB50010-2010. 混凝土结构设计规范[S].
[6] Maruyama I, Sato R. Micro-cracking around deformed reinforcing bar in ultra high-strength reinforced concrete members[J]. Journal of Structural and Construction Engineering, 2007, 617: 1-7.(in Japanese)
丸山一平, 佐藤良一. 超高強度コンクリートを用いたRC部材中の鉄筋近傍における微細ひび割れの発見[J]. 日本建築学会構造系論文集, 2007, 617:1-7.
[7] ACI318-08. Building code requirements for structural concrete[S].
[8] JSCE-2007. Standard specifications for concrete structures, design[S].(in Japanese)
JSCE-2007.コンクリート標準示方書, 設計編[S].
[9] WANG Wei-lun, XING Feng, CAO Zheng-liang. Experiment on shear failure mode for ultrahigh strength concrete RC beams without stirrups[J]. Journal of Shenzhen University Science and Engineering, 2006, 23(3): 189-194.(in Chinese)
王卫仑, 邢锋, 曹征良. 超高强度无腹筋梁斜截面破坏的实验研究[J]. 深圳大学学报理工版, 2006, 23(3): 189-194.
[10] Russo G, Venir R, Pauletta M, et al. Reinforced concrete corbels-shear strength model and design formula[J]. ACI Structural Journal, 2006, 103(1): 3-10.
[11] LI Hui. High Strength Concrete and Composite Structure [M]. Beijing: Science Press, 2004: 138-139.(in Chinese)
李惠. 高强混凝土及组合结构[M]. 北京: 科学出版社, 2004: 138-139.
[12] Vecchio F J, Collins M P. Predicting the response of reinforced concrete beams subjected to shear using the modified compression field theory[J]. ACI Structural Journal, 1988, 85(4): 258-268.
[13] Bentz E C, Vecchio F J, Collins M P. Simplified modified compression field theory for calculating shear strength of reinforced concrete elements[J]. ACI Structural Journal, 2006, 103(4): 614-624.
[14] Ahmed E A, Salakawy F, Benmokrane B. Performance evaluation of glass fiber-reinforced polymer shear reinforcement for concrete beams[J]. ACI Structural Journal, 2010, 107(1): 53-62.
[15] ZHANG Hong-zhan, ZHANG Rui-jin, HUANG Cheng-kui. Sectional analysis of steel fiber reinforced concrete beams using modified compression field theory[J]. Engineering Mechanics, 2008, 25(3): 144-150.(in Chinese)
张宏战, 张瑞瑾, 黄承逵. 基于MCFT理论的钢纤维混凝土梁的截面分析[J]. 工程力学, 2008, 25(3): 144-150.
[16] Vecchio F J, Collins M P. Compression response of cracked reinforced concrete[J]. Journal of Structural Engineering, 1993, 119(12): 3390-3610.
[17] Tomozawa F, Noguchi T. Investigation of fundamental mechanical properties of high strength and super high strength concrete[J]. Proceedings of Annual Conference of AIJ, 1990, A: 497-498.(in Japanese)
友澤史紀, 野口貴文ほか. 高強度·超高強度コンクリートの基礎的力学特性に関する調査[J]. 日本建築学会大会, 1990, A: 497-498.
[18] Sato M, Suzuki M, Akiyama M, et al. Shear strength equation of reinforced concrete beams without stirrup using ultra high-strength concrete[J]. Proceedings of Annual Conference of JSCE, 2002, 57: 257-258.(in Japanese)
佐藤成禎, 鈴木基行, 秋山充良ほか.超高強度コンクリートを用いた腹鉄筋のないRCはりのせん断強度式[J]. 土木学会年次学術講演会, 2002, 57: 257-258.
[19] Collins M P, Kuchma D. How safe are our large, lightly reinforced concrete beams, slabs, and footings [J]. ACI Structural Journal, 1999, 96(4): 482-490.
[20] Fujita M, Sato R, Matsumoto K. Size effect on shear strength of RC beams using HSC without shear reinforcement[J]. Proceedings of JSCE, 2002, 711(56): 161-172.(in Japanese)
藤田学, 佐藤良一, 松元香保里ほか. 高強度コンクリートを用いたRCはりのせん断強度と寸法効果[J]. 土木学会論文集, 2002, 711(56): 161-172.
[21] Reddy L S, Ramana N V, Gunneswara T D. Shear resistance of high strength concrete beams without shear reinforcement[J]. International Journal of Civil & Structural Engineering, 2010, 1(1): 101-113.

相似文献/References:

[1]王卫仑,邢锋,曹征良.超高强度无腹筋梁斜截面破坏实验研究[J].深圳大学学报理工版,2006,23(3):189.
 WANG Wei-Iun,XING Feng,and CAO Zheng-liang.Experimental study on shear failure modes for ultrahigh strength concrete RC beams without stirrups[J].Journal of Shenzhen University Science and Engineering,2006,23(No.2(095-188)):189.

备注/Memo

备注/Memo:
Received:2011-08-20;Accepted:2011-12-21
Foundation:National Natural Science Foundation of China (51078236) ,National Science Fund for Distinguished Young Scholars (50925829)
Corresponding author:Associate professor WANG Wei-lun.E-mail:wang_weilun@hotmail.com
Citation:WANG Wei-lun,WANG Xian-feng,DING Xiao-bo,et al.Effect of concrete ultrahigh strength on shear of reinforced concrete beams without web reinforcements[J]. Journal of Shenzhen University Science and Engineering, 2012, 29(2): 136-141.(in Chinese)
基金项目:国家自然科学基金资助项目(51078236);国家杰出青年科学基金资助项目(50925829)
作者简介:王卫仑(1970-),男(汉族),陕西省汉中市人,深圳大学副教授、博士.E-mail:wang_weilun@hotmail.com
引文:王卫仑,王险峰,丁小波,等.混凝土超高强化对无腹筋梁剪切抗力的影响[J]. 深圳大学学报理工版,2012,29(2):136-141.
更新日期/Last Update: 2012-03-28