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Numerical Modeling of Column Piers with Recessed Spliced Sleeves and Intentional Debonding for Accelerated Bridge Construction
| 题名： | Numerical Modeling of Column Piers with Recessed Spliced Sleeves and Intentional Debonding for Accelerated Bridge Construction |
| 正文语种： | eng |
| 作者： | Neupane, Suman;Ameli, M. J.;Pantelides, Chris P. |
| 作者单位： | Univ Utah;Univ Utah;Univ Utah |
| 关键词： | Accelerated construction;Bar buckling;Bond-slip;Bridge bent;Cyclic load;Debonding;Hysteretic energy;Low-cycle fatigue;Plastic hinge length;Splice sleeve |
| 摘要： | The grouted splice sleeve (GSS) connection is considered to be an effective bending moment-resisting connection between precast RC members. This connection type has been used extensively in nonseismic regions. The application of such a connection type in moderate or high seismic regions has been investigated and considered for multistory moment frame buildings and highway bridges. A computational modeling strategy is proposed at local and global levels for developing an appropriate computational model for such a connection type using a recessed GSS connection with intentional debonding. A computational model capable of predicting the structural response under cyclic loading was developed using established material models and a forced-based beam-column element considering low-cycle fatigue of reinforcing bars, bar-slip, intentional debonding of reinforcing bars, and plastic hinge length. The proposed model for recessed GSS connections with intentional debonding was experimentally validated. The proposed model was subsequently used to obtain the seismic response of a three-column bridge bent to near- and far-field earthquakes in terms of the overall maximum drift ratio and the drift ratio at the maximum seismic force. |
| 出版年： | 2023 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 149 |
| 期： | 3 |
| 页码： | 04023008.1-04023008.18 |
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