Experimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded Components
Abstract Post-earthquake observations revealed that seismic performance of beam-column connections in precast concrete structures affect the overall response extensively. Seismic design of precast reinforced concrete structures requires improved beam-column connections to transfer reversed load effe...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2017-05-01
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| Series: | International Journal of Concrete Structures and Materials |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/s40069-017-0190-y |
| _version_ | 1819075552704724992 |
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| author | Sadik Can Girgin Ibrahim Serkan Misir Serap Kahraman |
| author_facet | Sadik Can Girgin Ibrahim Serkan Misir Serap Kahraman |
| author_sort | Sadik Can Girgin |
| collection | DOAJ |
| description | Abstract Post-earthquake observations revealed that seismic performance of beam-column connections in precast concrete structures affect the overall response extensively. Seismic design of precast reinforced concrete structures requires improved beam-column connections to transfer reversed load effects between structural elements. In Turkey, hybrid beam-column connections with welded components have been applied extensively in precast concrete industry for decades. Beam bottom longitudinal rebars are welded to beam end plates while top longitudinal rebars are placed to designated gaps in joint panels before casting of topping concrete in this type of connections. The paper presents the major findings of an experimental test programme including one monolithic and five precast hybrid half scale specimens representing interior beam-column connections of a moment frame of high ductility level. The required welding area between beam bottom longitudinal rebars and beam-end plates were calculated based on welding coefficients considered as a test parameter. It is observed that the maximum strain developed in the beam bottom flexural reinforcement plays an important role in the overall behavior of the connections. Two additional specimens which include unbonded lengths on the longitudinal rebars to reduce that strain demands were also tested. Strength, stiffness and energy dissipation characteristics of test specimens were investigated with respect to test variables. Seismic performances of test specimens were evaluated by obtaining damage indices. |
| first_indexed | 2024-12-21T18:27:14Z |
| format | Article |
| id | doaj.art-3a0b052451874249a4a924f7315be03f |
| institution | Directory Open Access Journal |
| issn | 1976-0485 2234-1315 |
| language | English |
| last_indexed | 2024-12-21T18:27:14Z |
| publishDate | 2017-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Concrete Structures and Materials |
| spelling | doaj.art-3a0b052451874249a4a924f7315be03f2022-12-21T18:54:22ZengSpringerOpenInternational Journal of Concrete Structures and Materials1976-04852234-13152017-05-0111222924510.1007/s40069-017-0190-yExperimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded ComponentsSadik Can Girgin0Ibrahim Serkan Misir1Serap Kahraman2Department of Civil Engineering, Dokuz Eylul UniversityDepartment of Civil Engineering, Dokuz Eylul UniversityDepartment of Civil Engineering, Dokuz Eylul UniversityAbstract Post-earthquake observations revealed that seismic performance of beam-column connections in precast concrete structures affect the overall response extensively. Seismic design of precast reinforced concrete structures requires improved beam-column connections to transfer reversed load effects between structural elements. In Turkey, hybrid beam-column connections with welded components have been applied extensively in precast concrete industry for decades. Beam bottom longitudinal rebars are welded to beam end plates while top longitudinal rebars are placed to designated gaps in joint panels before casting of topping concrete in this type of connections. The paper presents the major findings of an experimental test programme including one monolithic and five precast hybrid half scale specimens representing interior beam-column connections of a moment frame of high ductility level. The required welding area between beam bottom longitudinal rebars and beam-end plates were calculated based on welding coefficients considered as a test parameter. It is observed that the maximum strain developed in the beam bottom flexural reinforcement plays an important role in the overall behavior of the connections. Two additional specimens which include unbonded lengths on the longitudinal rebars to reduce that strain demands were also tested. Strength, stiffness and energy dissipation characteristics of test specimens were investigated with respect to test variables. Seismic performances of test specimens were evaluated by obtaining damage indices.http://link.springer.com/article/10.1007/s40069-017-0190-ybeam-column connectionsprecast concreteweldingunbonded lengthdamage index |
| spellingShingle | Sadik Can Girgin Ibrahim Serkan Misir Serap Kahraman Experimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded Components International Journal of Concrete Structures and Materials beam-column connections precast concrete welding unbonded length damage index |
| title | Experimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded Components |
| title_full | Experimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded Components |
| title_fullStr | Experimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded Components |
| title_full_unstemmed | Experimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded Components |
| title_short | Experimental Cyclic Behavior of Precast Hybrid Beam-Column Connections with Welded Components |
| title_sort | experimental cyclic behavior of precast hybrid beam column connections with welded components |
| topic | beam-column connections precast concrete welding unbonded length damage index |
| url | http://link.springer.com/article/10.1007/s40069-017-0190-y |
| work_keys_str_mv | AT sadikcangirgin experimentalcyclicbehaviorofprecasthybridbeamcolumnconnectionswithweldedcomponents AT ibrahimserkanmisir experimentalcyclicbehaviorofprecasthybridbeamcolumnconnectionswithweldedcomponents AT serapkahraman experimentalcyclicbehaviorofprecasthybridbeamcolumnconnectionswithweldedcomponents |