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Seismic performance of a ductile rod exterior connection system for precast concrete industrial buildings
| 题名： | Seismic performance of a ductile rod exterior connection system for precast concrete industrial buildings |
| 正文语种： | eng |
| 作者： | Donghyuk Jung;Thomas H.-K. Kang;Dong Joo Lee;Sanghee Kim;James M. LaFave |
| 作者单位： | Korea University in Seoul Korea;Seoul National University in Korea;Hanssem Co. Ltd. in Korea;Kyonggi University in Suwon Korea;Department of Civil and Environmental Engineering at the University of Illinois Urbana-Champaign |
| 关键词： | Ductile rod connection system; exterior beam-to-column connection; lateral cyclic loading tests; prestressing; seismic performance |
| 摘要： | The seismic performance of a ductile rod system for exterior precast concrete beam-to-column connections was experimentally evaluated. Five full-scale precast concrete beam-to-column subassemblies connected with ductile rods were fabricated, considering various aspects (ductile rod size, prestressing, and flexural/ shear capacities). Lateral cyclic loading tests were conducted for the precast concrete connections along with two monolithic reinforced concrete connections. Despite their relatively lower lateral stiffness, most precast concrete connections showed sufficient moment capacities with peak moments at approximately 3% to 4% interstory drifts. The prestressing tendons were effective at enhancing moment and shear strengths of the precast concrete connections, as well as in reducing slip of the ductile rods. The precast concrete specimens generally showed satisfactory seismic performance, fulfilling acceptance criteria specified by the American Concrete Institute. The test results demonstrated that careful considerations are required in the design of ductile rods and high-strength threaded bars to induce stable flexural responses of the precast concrete connections. |
| 出版年： | 2023 |
| 期刊名称： | PCI Journal |
| 卷： | 68 |
| 期： | 1 |
| 页码： | 25-47 |
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