原文传递
Influence of Lap Splices on the Deformation Capacity of RC Walls. II: Shell Element Simulation and Equivalent Uniaxial Model
| 题名： | Influence of Lap Splices on the Deformation Capacity of RC Walls. II: Shell Element Simulation and Equivalent Uniaxial Model |
| 其他题名： | Aaleti,S.,Brueggen,B.L.,Johnson,B.,French,C.E.,and Sritharan,S.(2013)."Cyclic response of reinforced concrete walls with different anchorage details:Experimental investigation."J.Struct.Eng.,10.1061/(ASCE)ST.1943-541X.0000732,1181–1191. |
| 正文语种： | 英文 |
| 作者： | Danilo Tarquini |
| 关键词： | Seismic effects;Reinforced concrete walls;Lap splice;Equivalent uniaxial model |
| 摘要： | Spliced longitudinal reinforcement may result in a reduction of both strength and displacement capacity of reinforced concrete (RC) members. This applies in particular when lap splices are located in regions where inelastic deformations concentrate, such as the plastic zone at the base of RC walls. This paper introduces a simple numerical model suitable for engineering practice to simulate the forcedisplacement response of RC walls with lap splices. Based on experimental data from 16 test units, an equivalent uniaxial steel stress-strain law is proposed that represents the monotonic envelope of the cyclic response of spliced rebars in RC walls up to the onset of strength degradation. It allows for modeling lap splice response with finite element (FE) models while avoiding the use of complex interface bond-slip elements. A new semi-empirical expression for the strain at the onset of strength degradation is derived, which expresses the strain capacity of the lap splice as a function of the confining reinforcement ratio and the ratio of lap splice length to shear span of the wall. The proposed equivalent constitutive law was included in shell element models to predict the force-displacement response of the test unit set of RC walls. Results demonstrated the ability of this approach to adequately capture the peak strength and displacement capacity of the spliced units. |
| 出版年： | 2017 |
| 论文唯一标识： | P-26Y2017V143N12004 |
| 英文栏目名称： | TECHNICAL PAPAERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001859 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 143 |
| 期： | 12 |
| 页码： | 37-53 |
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