原文传递
Simulation of Tests on Cast-In and Postinstalled Column-to-Foundation Connections to Quantify the Effect of Cyclic Loading
| 题名： | Simulation of Tests on Cast-In and Postinstalled Column-to-Foundation Connections to Quantify the Effect of Cyclic Loading |
| 正文语种： | 英文 |
| 作者： | Christoph Mahrenholtz;Rolf Eligehausen |
| 作者单位： | iR&D Manager;Dept, for Civil and Environmental Engineering, Univ, of Stuttgart |
| 关键词： | Bond model; Microplane model; Connection; Yielding; Debonding; Retrofitting; Postinstallation; Seismic effects |
| 摘要： | Additional columns are often used as a retrofitting solution for reinforced concrete structures, particularly in seismic regions. These columns require postinstalled starter bars that inhibit the detailing of the anchorage with hooks. Often, the anchorage length of straight starter bars cannot be accommodated in foundations, which are generally short. For this reason, reductions of the large anchorage length, which are required according to the design codes, are desirable. The aim of the study presented in this paper was to quantify the adverse effect of cyclic loading on the capacity of connections with reduced starter bar anchorage lengths. To this end, finite-element analysis employing bond elements was realistically carried out to simulate seismic tests on column-to-foundation connections. The analysis allowed the study of the effect of cyclic loading on global performance and local behavior in terms of tensile and bond stresses along the starter bar. An equation to take into account the effect of cyclic loading was developed, which is the prerequisite to use a new design methodology on the basis of concrete anchor design provisions for seismic design cases. DOI: 10.106l/(ASCE)ST.1943-541X.0001330. © 2015 American Society of Civil Engineers. |
| 出版日期： | 2016.01 |
| 出版年： | 2016 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.142 |
| 期： | NO.01 |
| 页码： | 04015073 |
相关文献
- Seismic Behavior and Design of Concrete-Filled Thin-Walled Steel Tube Column-to-Foundation Connections
- Effects of Detailing on the Cyclic Behavior of Steel Baseplate Connections Designed to Promote Anchor Yielding
- Cyclic Response of Precast, Hollow Bridge Columns with Postpour Section and Socket Connection
- Improved Link-to-Column Connections for Steel Eccentrically Braced Frames
- Reversed Cyclic Behavior of Column-to-Foundation Connections in Low-Rise Metal Buildings
- Experimental Parametric Characterization of Bolted Angle Connection Behavior
检索历史
应用推荐
