多维动力加载条件下钢筋混凝土柱力学性能的研究

PDF(2980 KB)

振动与冲击 ›› 2016, Vol. 35 ›› Issue (4) : 35-41.

论文

王德斌1,范国玺2,张皓 3

作者信息 +

Study on mechanical behavior of reinforced concrete columns under multi-dimensional dynamic loadings

Wang Debin1 FAN Guoxi2 Zhang Hao3

Author information +

文章历史 +

摘要

本文通过钢筋混凝土柱在多维动力加载下的试验，研究了钢筋混凝土柱在不同加载速率下的动态力学性能。试验结果表明：加载速率的提高会有效的提高构件的承载能力；随加载速率的提高，构件的刚度退化、强度退化和损伤进程均有不同程度的增强；双向加载及变轴力加载受加载速率的影响更为显著；构件发生破坏的区域更加局部化；构件的延性和变形能力有所降低，在双向加载并伴随有轴力变化的加载条件下表现尤为明显。

Abstract

The dynamic mechanical behaviors of reinforced concrete (RC) columns under multi-dimensional dynamic loadings are investigated in this paper. The conclusions can be drawn that, the bearing capacity of RC columns can enhance with the increase of loading rate. The stiffness degradation, strength degradation and damage are significantly higher in the RC columns subjected to rapidly loading. The effect of loading rate on RC columns under bi-directional loading and varying axial loading is more obvious. With the increase of loading rate, the damage region distribute more localized. The ductility and deformation capacity of RC columns decrease obviously with the increase of loading rate, especially in the bi-directional loading with varying axial load.

导出引用

王德斌1,范国玺2,张皓 3. 多维动力加载条件下钢筋混凝土柱力学性能的研究[J]. 振动与冲击, 2016, 35(4): 35-41

Wang Debin1 FAN Guoxi2 Zhang Hao3. Study on mechanical behavior of reinforced concrete columns under multi-dimensional dynamic loadings[J]. Journal of Vibration and Shock, 2016, 35(4): 35-41

参考文献

[1] Otani S, Cheung V W T, Lai S S. Behavior and analytical models of reinforced concrete columns under biaxial earthquake loads [C]. Third Canadian Conference on Earthquake Engineering, Canadian National Committee for Earthquake Engineering et al, Montreal, 1979,(2):1141-1167.
[2] Sato T, Kobayashi H. A study on reinforced concrete columns under cyclic biaxial moment [J]. Memoirs of the Faculty of Engineering, Osaka City University, 2004,(45): 29-36.
[3] Rodrigues H, Arede A, Varum H, et al. Experimental evaluation of rectangular reinforced concrete column behavior under biaxial cyclic loading [J]. Earthquake Engineering & Structural Dynamics, 2013, 42(2):239-259.
[4] Qiu F W, Li W F, Pan P, Qian J. Experimental tests on reinforced concrete columns under biaxial quasi-static loading [J]. 2002,24: 419-428.
[5] 康洪震,江见鲸.不同加载路径下钢筋混凝土框架柱抗震性能的试验研究[J].土木工程学报,2003,36（5）：71-75.
   Kang Hong-zhen, Jiang Jian-jing.Experimental study on seismic behavior of RC frame columns
under varied loading paths[J]. China Civil Engineering Journal,2003,36(5):71-75.
[6] Abrams D P. Influence of axial force variations on flexural behavior of reinforced concrete columns [J]. ACI Structural Journal, 1987, 84(3): 246-254.
[7] Kuramoto H, Kabeyasawa T, Shen F H. Influence of axial deformation on ductility of high-strength reinforced concrete columns under varying tri-axial force [J]. ACI Structural Journal, 1995, 92(9): 610-618.
[8] Saadeghvaziri M A. Nonlinear response and modeling of RC columns subjected to varying axial load [J]. Engineering Structures, 1997,19(6): 417-424.
[9] 黄翔.规则变轴力作用下钢筋混凝土框架柱的抗震性能研究[D].重庆：重庆建筑大学，1995.
    Huang Xiang. Research on mechanical behaviors of reinforced concrete frame columns subjected to lateral cyclic loads and regular variable axial loads simultaneously[D].Chong Qing: Chong Qing Jian Zhu University,1995.
[10] Mutsuyoshi H, Machida A. Properties and failure of reinforced concrete members subjected to dynamic loading [J]. Transactions of the Japan Concrete Institute, 61 521-528.
[11] Kulkarni S M, Shah S P. Response of reinforced concrete beams at high strain rates [J]. ACI Structural Journal, 1998, 95(6): 705-715.
[12] Otani S, Kaneko T, Shiohara H. Strain rate effect on performance of reinforced concrete members [C].Concrete structures in seismic regions: FiB, 2003.
[13] 陈俊名.钢筋混凝土剪力墙动力加载试验及考虑应变率效应的有限元模拟[D].长沙：湖南大学，2010.
    Chen Jun-ming. The dynamic loading test of reinforced concrete shear walls and its finite element analysis
considering strain rate effects[D]. Chang Sha: Hu Nan University,2010.
[14] 许斌,龙业平.基于纤维模型的钢筋混凝土柱应变率效应研究[J].工程力学,2011,28（7）：103-108.
    Xu Bin, Long Ye-ping. Study on the behavior of reinforced concrete columns with fiber model considering strain rate effect[J].Engineering Mechanics, 2011,28（7）：103-108.
[15] 肖诗云,曹闻博,潘浩浩.不同加载速率下钢筋混凝土梁力学性能试验研究[J].建筑结构学报,2012,（12）：142-146.
    Xiao Shi-yun, Cao Wen-bo, Pan Hao-hao. Experimental study on mechanical behavior of reinforced concrete beams at different loading rates[J]. Journal of Building Structures, 2012,（12）：142-146.
[16] Li M, Li H N. Effects of strain rate on reinforced beam [J]. Advanced Materials Research, 2011, 243: 4033-4036.
[17] Bertero V V，Rea D, Mahin S, et al. Rate of loading effects on uncracked and repaired reinforced concrete members [C]. Proceeding of fifth world conference on earthquake engineering, Rome, 1973(1): 1461-1471.
[18] Soroushian P, Choi K B. Steel mechanical properties at different strain rates [J]. Journal of Structural Engineering, 1987,113(4): 663-672.
[19] 李敏,李宏男.建筑钢筋动态试验及本构模型[J].土木工程学报,2010,43(4): 70-75.
    Li Min and Li Hongnan. Dyamic test and constitutive model for reinforcing steel bar[J]. China Civil Engineering Journal,2010,43(4):70-75.