ORIGINAL RESEARCH article
Front. Mater.
Sec. Structural Materials
Volume 12 - 2025 | doi: 10.3389/fmats.2025.1715292
This article is part of the Research TopicSustainable and Green Materials in Geotechnical EngineeringView all 13 articles
A Rapid Strengthening Approach for Existing A-type RC Frames in Substations Considering Low Disturbance : A Finite-Element-Driven Design Study
Provisionally accepted
Wei-xian Che1Wen-wei Zhu1Yan-feng Wang1Jin-gen Guo1Xin Gao1Lei Li1
Gong-ke Niu2*Jing-he Wang2Song Wang2- 1Guangdong Power Grid Co Ltd, Guangzhou, China
- 2China Academy of Building Research, Beijing, China
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The power system is an important lifeline engineering system, and substations play a crucial role in transferring power supply. To ensure the reliability of power supply, the safety of the existing A-type reinforced concrete frame cannot be ignored. To avoid long-term power outages and high overall costs, this study considered the use of a low-interference rapid reinforcement method and analyzed it. All components used in this method are produced in the factory, and no grouting or welding operations are required on-site. Additionally, ABAQUS numerical simulation was used to study the mechanical properties of the strengthened A-type reinforced concrete frame and analyze the effectiveness of the proposed reinforcement method. The results show that the A-type reinforced concrete frame strengthened by this method has increased its ultimate bearing capacity, initial stiffness, and energy dissipation capacity by 184%, 28%, and 52% respectively. The proposed method improves the overall performance. This study provides a reference for the reinforcement of other similar reinforced concrete structures in substations.
Keywords: Substation, strengthening, Assembly, Low disturbance, Finite Element Analysis, Design optimization
Received: 29 Sep 2025; Accepted: 23 Oct 2025.
Copyright: © 2025 Che, Zhu, Wang, Guo, Gao, Li, Niu, Wang and Wang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Gong-ke Niu, niugongke@cabrtech.com
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