Mechanism analysis for size effect on shear performance of RC short columns under cyclic load

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Journal of Vibration and Shock ›› 2021, Vol. 40 ›› Issue (13) : 299-305.

FU Li, ZHENG Jiale, WANG Dengfeng

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Abstract

Here, in order to study size effect mechanism on RC short column shear performance under cyclic load, using 3-D rigid spring element method and based on beam-arch model, anti-shear actions of RC short columns with 3 different section sizes were decomposed. The results showed that the 3-D rigid spring element method can better simulate shear performance of RC short columns with different section sizes under cyclic load; when the ultimate load is reached, the shear strength defined as nominal shear stress gradually decreases with increase in section sizes; compared with the monotonic load, the size effect varies less after one cycle, while the size effect is more obvious after two cycles during short column close to failure, the main cause is due to anti-shear action of the arch model sharply dropping.

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reinforced concrete (RC) short column / cyclic load / size effect / beam-arch model / mechanism analysis

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FU Li, ZHENG Jiale, WANG Dengfeng. Mechanism analysis for size effect on shear performance of RC short columns under cyclic load[J]. Journal of Vibration and Shock, 2021, 40(13): 299-305

References

［1］BAZANT Z P, KIM J K. Size effect in shear failure of longitudinally reinforced beams［J］. Journal of the American Concrete Institute, 1984, 81(5):456-468.
［2］BAZANT Z P. Size effect in blunt fracture: concrete, rock, metal［J］. Journal of Engineering Mechanics, 1984, 110(4):518-535.
［3］杜修力,袁健,周宏宇,等.钢筋混凝土梁在低周反复荷载作用下受剪性能的尺寸效应试验研究［J］.地震工程与工程振动,2011,31(5):30-38.
DU Xiuli, YUAN Jian, ZHOU Hongyu, et al. The experimental study of size effect on shear capacity of reinforced concrete beam under low cyclic loading［J］. Journal of Earthquake Engineering and Engineering Vibration, 2011,31(5): 30-38.
［4］于磊,车轶,宋玉普.大尺寸钢筋混凝土无腹筋梁受剪试验研究［J］.土木工程学报,2013,46(1):1-7.
YU Lei, CHE Yi, SONG Yupu. Experimental study on shear strength of large-size reinforced concrete beams without web reinforcement［J］. China Civil Engineering Journal，2013,46（1）：1-7.
［5］周胤呈. 基于尺寸效应的有腹筋钢筋混凝土梁的剪切强度研究［D］.重庆：重庆交通大学,2017.
［6］李振宝,解咏平,杜修力,等.钢筋混凝土短柱受剪性能尺寸效应研究［J］.土木工程学报,2014,47(6):26-33.
LI Zhenbao, XIE Yongping, DU Xiuli, et al. Size effect on shear behavior of reinforced concrete short columns［J］. China Civil Engineering Journal, 2014, 47(6): 26-33.
［7］解咏平,李振宝,杜修力,等.基于桁架-拱模型的钢筋混凝土短柱抗剪承载力尺寸效应分析［J］.北京工业大学学报,2014,40(5):701-706.
XIE Yongping，LI Zhenbao，DU Xiuli，et al. Size effect analysis on shear behavior of reinforced concrete short columns based on truss-arch model［J］. Journal of Beijing University of Technology,2014,40(5):701-706.
［8］金浏, 苏晓, 徐海滨, 等. 基于细观模型的含腹筋混凝土梁受剪承载力尺寸效应［J］. 土木与环境工程学报(中英文), 2019, 41(1):83-91.
JIN Liu, SU Xiao, XU Haibin, et al. Meso-scle simulation of size effect in shear capacity of reinforced concrete beams with web reinforcement［J］. Journal of Civil and Environmental Engineering, 2019, 41(1):83-91.
［9］PARK R, PAULAY T. Reinforced concrete structures［M］. New York, NY: John Wiley & Sons; 1975.
［10］KIM W, JEONG J. Decoupling of arch action in shear-critical reinforced concrete beams［J］. ACI Struct J, 2011,108(4):395-403.
［11］YAMAMOTO Y, NAKAMURA H, KURODA I, et al. Analysis of compression failure of concrete by three dimensional rigid body spring model［J］. Doboku Gakkai Ronbunshuu E, 2008, 64(4): 612-630.
［12］GEDIK Y H, NAKAMURA H, YAMAMOTO Y, et al. Analysis of compression failure of concrete by three dimensional rigid body spring model［J］. Cement Concr Compos, 2011,33:978-991.
［13］YAMAMOTO Y, NAKAMURA H, KURODA I, et al. Crack propagation analysis of reinforced concrete wall under cyclic loading using RBSM［J］. European Journal of Environmental and Civil Engineering,2014,18(7):780-792.
［14］BOLANDER J E, Jr, HONG G S. Rigid-body-spring network modeling of prestressed concrete members［J］.ACI Structural Journal, 2002, 99(5):595-604.
［15］SUGA M, NAKAMURA H, HIGAI T, et al. Effect of bond properties on the mechanical behavior of RC beam［J］. Proceedings of Japan Concrete Institute, 2001, 23(3): 295-300.
［16］CEB-FIP Model Code 1990 First Draft［S］. Paris, France:CEB, 1990.
［17］FU L, NAKAMURA H, FURUHASHI H, et al. Mechanism of shear strength degradation of a reinforced concrete column subjected to cyclic loading［J］. Structural Concrete, 2016,18(1):177-188.
［18］FU L, NAKAMURA H, YAMAMOTO Y, et al. Numerical investigation of effect of through crack on shear strength degradation of RC column［J］. Proceedings of the Japan Concrete Institute, 2016, 36:865-870.
［19］IWAMOTO T, NAKAMURA H, FU L, et al. An investigation on shear resistant mechanism of RC beam based on beam action and arch action［J］. Doboku Gakkai Ronbunshuu, 2017,73(1):70-81.
［20］Standard specifications for concrete design［S］. Tokyo, Japan: JSCE, 2012.