Analysis of residual displacement for reinforced concrete piers under pseudo-static load

被引：0
|
作者：
Wang, Junwen [1 ,2 ]
Li, Haiyang [1 ,2 ]
Li, Jianzhong [3 ]
机构：
[1] School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang
[2] Key Laboratory of Roads and Railway Engineering Safety Control of Ministry of Education, Shijiazhuang Tiedao University, Shijiazhuang
[3] Department of Bridge Engineering, Department of Bridge Engineering, Tongji University, Shanghai
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2015年 / 43卷 / 09期
关键词：
Calculation method; Numerical simulation; Pier; Pseudo-static; Reinforced concrete; Residual displacement;
D O I：
10.13245/j.hust.150918
中图分类号：
学科分类号：
摘要：
In order to reveal the mechanism of residual deformation for reinforced concrete (RC) piers under pseudo-static load and propose a more accurate calculation method of residual displacement, with the fiber beam-column element, the calculation model of RC pier was established by OpenSees, and the influences of some parameters on ductility index of residual displacement were investigated, including axial load ratio, shear-span ratio, longitudinal reinforcement ratio, transverse reinforcement ratio, strength hardening coefficient of longitudinal reinforcement, ratio between longitudinal reinforcement yield strength and concrete compressive strength. The curve of residual displacement influence coefficient changing with a single parameter was fit by ductility index of residual displacement. On that basis, the calculation formula of residual displacement influence coefficient was established, and the accuracy test of this formula was performed by the comparing estimated value of the proposed formula with the pseudo-static test value. The results show that the estimated residual displacement by the proposed formula has a less than 10% deviation from experimental results, so the proposed formula can be used for preliminary estimate of residual displacement under pseudo-static load of RC piers designed by performance based seismic design method. ©, 2015, Huazhong University of Science and Technology. All right reserved.
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页码：95 / 99
页数：4
相关论文
共 10 条
  • [1] Riddell R., Newmark N.M., Statistical Analysis of the Response of Nonlinear Systems Subjected to Earthquakes, (1979)
  • [2] Priestley M.J., Macrase G., Seismic tests of precast beam-to-column joint subassemblages with unbonded tendons, PCI Journal, 41, 1, pp. 64-81, (1996)
  • [3] Farrow K.T., Kurama Y.C., SDOF demand index relationships for performance-based seismic design, Earthquake Spectra, 19, 4, pp. 799-838, (2003)
  • [4] Hose Y.D., Serble F., Performance Evaluation Database for Concrete Bridge Components and Systems under Simulated Seismic Loads, (1999)
  • [5] Mander J.B., Priestley M.J.N., Park R., Theoretical Stress Strain model for concrete, Journal of Structural Engineering, 114, 8, pp. 1804-1826, (1988)
  • [6] Zhao J., Sritharan S., Modeling of strain penetration effects in fiber-based analysis of reinforced concrete structures, ACI Structural Journal, 104, 2, pp. 133-141, (2007)
  • [7] Calderone A.J., Lehman D.E., Moehle J.P., Behavior of Reinforced Concrete Bridge Columns Having Varying Aspect Ratios and Varying Lengths of Confinement, (2001)
  • [8] Lehman D.E., Moehle J.P., Seismic Performance of Well-Confined Concrete Bridge Columns, (2000)
  • [9] Kunnath S.K., El-Bahy A., Taylor A.W., Et al., Cumulative Seismic Damage of Reinforced Concrete Bridge Piers, Technical Report NCEER-97-0006, (1997)
  • [10] Moyer M.J., Kowalsky M.J., Influence of tension strain on buckling of reinforcement in concrete columns, ACI Structural Journal, 100, 1, pp. 75-85, (2003)
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