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Hysteretic Model for Shear-Critical Reinforced Concrete Columns
| 题名： | Hysteretic Model for Shear-Critical Reinforced Concrete Columns |
| 正文语种： | 英文 |
| 作者： | Bo Yu, M.ASCE; Chao-lie Ning;Bing Li, M.ASCE |
| 作者单位： | Guangxi Univ;Nanyang Technological Univ |
| 关键词： | Reinforced concrete; Shear-critical RC column; Parameter identification; Stiffness degradation; Strength deterioration; Pinching effect; Analysis and computation. |
| 摘要： | A continuous and smooth hysteretic model for shear-critical reinforced concrete (RC) columns was identified and calibrated based on an efficient stochastic search technique and an experimental database consisting of 30 shear-critical RC columns. The inelastic restoring force of shear-critical columns was described by the Bouc-Wen-Baber-Noori (BWBN) model to produce the requisite strength and stiffness degradation as well as pinching effect. Meanwhile, the backward Euler and Newton-Raphson schemes were adopted to determine the inelastic restoring force by solving the ordinary differential equations. Then a differential evolution (DE) algorithm was utilized to identify the control parameters of the BWBN hysteretic model based on an experimental database consisting of 30 shear-critical recta ngular columns under cyclic loading. Finally, prediction equations for the BWBN model parameters were developed in terms of four structural physical parameters. The capability and accuracy of the calibrated hysteretic model were demonstrated by comparison with the available experimental data. DOI: 10.106l/(ASCE)ST.1943-541X.0001519. © 2016 American Society of Civil Engineers. |
| 出版日期： | 2016.09 |
| 出版年： | 2016 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.142 |
| 期： | NO.09 |
| 页码： | 04016056 |
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