Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge Technology
The introduction of a novel replaceable plastic hinge technology aims to enhance the performance of precast reinforced concrete (PRC) frames, particularly in seismically vulnerable areas where substandard structural systems are prevalent. This artificially controllable plastic hinge (ACPH) mechanism...
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MDPI AG
2025-05-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/10/5629 |
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| author | Resat Oyguc Ali Berk Bozan |
| author_facet | Resat Oyguc Ali Berk Bozan |
| author_sort | Resat Oyguc |
| collection | DOAJ |
| description | The introduction of a novel replaceable plastic hinge technology aims to enhance the performance of precast reinforced concrete (PRC) frames, particularly in seismically vulnerable areas where substandard structural systems are prevalent. This artificially controllable plastic hinge (ACPH) mechanism effectively localizes inelastic deformations to a detachable steel subassembly, thereby maintaining the integrity of the primary structural components. A numerical analysis was carried out on four distinct PRC frame configurations that utilized concrete and steel of inferior quality relative to contemporary standards. The frames underwent testing under a segment of the Mw 7.7 Kahramanmaraş ground motion, revealing that connections utilizing the ACPH not only reduce peak base shear but also mitigate cracking at beam–column interfaces, directing plastic strains towards replaceable fuse elements. The implementation of the ACPH also facilitates extended structural periods and localized plastic hinging, which serves to limit damage to essential members while expediting post-earthquake repairs. Comparative validation through prior subassembly tests confirms that this hinge exhibits a strong hysteretic response and ductile performance, surpassing traditional wet-joint connections in the context of substandard PRC frames. Overall, these results underscore the potential of standardized hinge modules in enhancing seismic resilience and supporting swift, economical rehabilitation of critical infrastructure. Thus, this proposed technology effectively tackles persistent issues related to low-strength materials in precast structures, presenting a practical approach to improving earthquake resilience and minimizing repair time and costs. |
| format | Article |
| id | doaj-art-36858ace2cbf475baf6f95cfa12d108e |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-36858ace2cbf475baf6f95cfa12d108e2025-08-20T03:47:48ZengMDPI AGApplied Sciences2076-34172025-05-011510562910.3390/app15105629Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge TechnologyResat Oyguc0Ali Berk Bozan1Institute of Disaster Management, Istanbul Technical University, Maslak, Istanbul 34469, TurkeyInstitute of Disaster Management, Istanbul Technical University, Maslak, Istanbul 34469, TurkeyThe introduction of a novel replaceable plastic hinge technology aims to enhance the performance of precast reinforced concrete (PRC) frames, particularly in seismically vulnerable areas where substandard structural systems are prevalent. This artificially controllable plastic hinge (ACPH) mechanism effectively localizes inelastic deformations to a detachable steel subassembly, thereby maintaining the integrity of the primary structural components. A numerical analysis was carried out on four distinct PRC frame configurations that utilized concrete and steel of inferior quality relative to contemporary standards. The frames underwent testing under a segment of the Mw 7.7 Kahramanmaraş ground motion, revealing that connections utilizing the ACPH not only reduce peak base shear but also mitigate cracking at beam–column interfaces, directing plastic strains towards replaceable fuse elements. The implementation of the ACPH also facilitates extended structural periods and localized plastic hinging, which serves to limit damage to essential members while expediting post-earthquake repairs. Comparative validation through prior subassembly tests confirms that this hinge exhibits a strong hysteretic response and ductile performance, surpassing traditional wet-joint connections in the context of substandard PRC frames. Overall, these results underscore the potential of standardized hinge modules in enhancing seismic resilience and supporting swift, economical rehabilitation of critical infrastructure. Thus, this proposed technology effectively tackles persistent issues related to low-strength materials in precast structures, presenting a practical approach to improving earthquake resilience and minimizing repair time and costs.https://www.mdpi.com/2076-3417/15/10/5629precast reinforced concrete framesbeam–column connectionsreplaceable plastic hingeartificially controllable plastic hingepost-earthquake restoration |
| spellingShingle | Resat Oyguc Ali Berk Bozan Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge Technology Applied Sciences precast reinforced concrete frames beam–column connections replaceable plastic hinge artificially controllable plastic hinge post-earthquake restoration |
| title | Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge Technology |
| title_full | Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge Technology |
| title_fullStr | Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge Technology |
| title_full_unstemmed | Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge Technology |
| title_short | Enhancing Seismic Repairability of Precast RC Frames Through an Innovative Replaceable Plastic Hinge Technology |
| title_sort | enhancing seismic repairability of precast rc frames through an innovative replaceable plastic hinge technology |
| topic | precast reinforced concrete frames beam–column connections replaceable plastic hinge artificially controllable plastic hinge post-earthquake restoration |
| url | https://www.mdpi.com/2076-3417/15/10/5629 |
| work_keys_str_mv | AT resatoyguc enhancingseismicrepairabilityofprecastrcframesthroughaninnovativereplaceableplastichingetechnology AT aliberkbozan enhancingseismicrepairabilityofprecastrcframesthroughaninnovativereplaceableplastichingetechnology |