全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

仿真混凝土材料动态拉伸试验研究

DOI: 10.13197/j.eeev.2015.06.18.zhangy.003, PP. 18-25

Keywords: 仿真混凝土,应变速率,拉伸强度,力学特性,应力-应变曲线

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过直接拉伸试验和劈拉试验研究仿真混凝土材料动态受拉特性,为混凝土坝动力模型试验提供相关材料参数,研究其与原型混凝土材料的匹配问题。在应变速率10-5/s至10-1.08/s范围内对试件进行拉伸试验研究,给出拉伸曲线方程,并分别对仿真材料的强度、峰值应力处应变、弹性模量给出考虑率相关的经验公式,分析泊松比、吸能能力、破坏形态与应变速率的关系。通过与混凝土动态拉伸特性以及破坏形态对比,得出结论仿真混凝土材料适合模型动力试验;其动态拉伸特性和混凝土材料表现出一定的相似性,但极限拉伸强度和吸能能力等方面率相关性更明显,在进行模型与原型的相似关系设计以及高坝模型动力破坏试验分析时,需充分考虑仿真材料的率相关特性以得到合理的高坝模型试验结论。

References

[1]  范书立.混凝土重力坝的动力模型破坏试验及可靠性研究[D].大连:大连理工大学, 2007. FAN Shuli. Research on dynamic failure test and reliability of concrete gravity dam[D]. Dalian:Dalian University of Technology, 2007.(in Chinese)
[2]  赵锦华.仿真混凝土的力学性能研究及重力坝的动力模型数值分析[D].大连:大连理工大学, 2007. ZHAO Jinhua. The mechanical property study on emulation concrete and numerical analysis on dynamic dam model[D]. Dalian:Dalian University of Technology, 2007.(in Chinese)
[3]  GB50010-2010混凝土结构设计规范[S].北京:中国建筑工业出版社, 2010. GB50010-2010 Code for Design of Concrete Structures[S]. Beijing:Building Industry Press of China, 2010.(in Chinese)
[4]  Gopalaratnam V S, Surendra P. Shah. Softening response of plain concrete in direct tension[J]. ACI Journal, 1985, 82(3):310~323.
[5]  闫东明,林皋,王哲,等.不同应变速率下混凝土直接拉伸试验研究[J].土木工程学报,2005,38(6):97-103. YAN Dongming, LIN Gao, WANG Zhe, et al. A study on direct tensile properties of concrete at different strain rates[J]. China Civil Engineering Journal, 2005, 38(6):97-103.(in Chinese)
[6]  Biscoff P H, Perry S H. Compression behaviour of concrete at high strain rates[J]. Material and Structures, 1991, 144(24):425-450.
[7]  L. Javier Malvar, C. Allen Ross. Review of strain rate effects for concrete in tension[J]. ACI Materials Journal, 1998, 95(6):735-739.
[8]  肖诗云,林皋,王哲,等.应变速率对混凝土抗拉特性影响[J].大连理工大学学报, 2001, 14(6):721-725. XIAO Shiyun, LIN Gao, WANG Zhe, et al. Effects of strain rate on dynamic behavior of concrete in tension[J]. Journal of Dalian University of Technology, 2001, 14(6):721-725.(in Chinese)
[9]  林皋,朱彤,林蓓.结构动力模型试验的相似技巧[J].大连理工大学学报, 2000, 40(1):1-8. LIN Gao, ZHU Tong, LIN Pei. Similarity technique for dynamic structural model test[J]. Journal of Dalian University of Technology, 2000, 40(1):1-8.(in Chinese)
[10]  陈厚群.水工混凝土结构抗震研究进展的回顾和展望[J].中国水利水电科学研究院学报, 2008(4):245-257. CHEN Houqun. Review and prospect of seismic study on concrete hydraulic structures[J]. Journal of China Institute of Water Resources and Hydropower Research, 2008(4):245-257.(in Chinese)
[11]  楼梦麟.设有横缝的高拱坝地震反应分析方法[J].水利学报, 2000(6):14-19. LOU Menglin. An approach to seismic response analysis of high arch dams with contraction joints[J]. Journal of Hydraulic Engineering, 2000(6):14-19.(in Chinese)
[12]  潘坚文,王进廷,张楚汉.超强地震作用下拱坝的损伤开裂分析[J].水利学报, 2007, 38(2):143-149. PAN Jianwen, WANG Jinting, ZHANG Chuhan. Analysis of damage and cracking in arch dams subjected to extremely strong earthquake[J]. Journal of Hydraulic Engineering, 2007, 38(2):143-149.(in Chinese)
[13]  罗丹旎,林鹏,李庆斌,等.洛溪渡特高拱坝初期蓄水工作性态分析研究[J].水利学报, 2014, 45(1):18-26. LUO Danni, LIN Peng, LI Qingbin, et al. Performance analysis of xiluodu super-high arch dam in impounding period[J]. Journal of Hydraulic Engineering, 2014, 45(1):18-26.(in Chinese)
[14]  陈厚群,唐继儒,钱维栎,等.枫树坝坝内式厂房段的动力特性和地震反应[J].水利学报, 1980(2):34-43. CHEN Houqun, TANG Jiru, QIAN Weili, et al. Dynamic behavior and earthquake response of dam section with inserted power station of fengshuba dam[J]. Journal of Hydraulic Engineering, 1980(2):34-43.(in Chinese)
[15]  Lin Gao, Zhou Jing, Fan Chuiyi. Dynamic model rupture test and safety evaluation of concrete gravity dams[J].Dam Engineering, 1993(4):173-186.
[16]  朱彤,林皋,马恒春.混凝土仿真材料特性及其应用的试验研究[J].水利发电学报, 2004, 23(4):31-37. ZHU Tong, LIN Gao, MA Hengchun. The test research on properties and applications of emulation concrete material[J]. Journal of Hydroelectric Engineering, 2004, 23(4):31-37.(in Chinese)
[17]  宫必宁.重力坝地震动水压力试验研究[J].河海大学学报, 1997, 25(1):98-102. GONG Bining. Experimental study on earthquake hydrodynamic pressure of gravitydam[J]. Journal of hehai university, 1997, 25(1):98-102.(in Chinese)
[18]  Philippe B. Morin, Pierre Léger, René Tinawi. Seismic behavior of poet-tensioned gravity dams:shake table experiments and numerical simulations[J]. Journal of Structural Engineering, 2002, 128(1):140-152.
[19]  Wang Haibo, Li Deyu. Experimental study of dynamic damage of an arch dam[J]. Earthquake Engineering and Structural Dynamics, 2007, 36(3):347-366.
[20]  盛志刚,徐艳杰,刘海笑.拱坝横缝配筋动力响应的模型试验和计算分析[J].清华大学学报, 2009, 49(3):317-320. SHENG Zhigang, XU Yanjie, LIU Haixiao. Model tests and numerical analyses of the nonlinear seismic behavior of arch dams with reinforced contraction joints[J]. Journal of Tsinghua University, 2009, 49(3):317-320.(in Chinese)

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133

WeChat 1538708413