PSI - Issue 70

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ScienceDirect

Procedia Structural Integrity 70 (2025) 145–152

Structural Integrity and Interactions of Materials in Civil Engineering Structures (SIIMCES-2025) Seismic performance of RC building with FRP reinforced concrete AlokKumar a,* , Goutam Ghosh a a Civil Engineering, MNNIT ALLAHABAD, Prayagraj, 211004, U.P, India Abstract This study analyses a G+5 RCC frame building using SAP 2000. In the non-linear analysis, the moment-curvature relationship is employed to model plastic hinge behavior. Consequently, it was developed to simulate the auto hinges for the beam and column. The seismic dynamic response of an earthquake-deficient building was assessed under the ground motion acceleration of the selected earthquake through pushover. The computation indicated that most beam-column joints are inadequate for earthquake loading and thus require strengthening. Seismic rehabilitation utilized CFRP sheets to improve the properties of the seismically deficient building members. The seismic appropriateness of the strengthened members was subsequently verified with the assistance of pushover analyses to ensure the sufficiency of CFRP strengthening. Numerical analysis was conducted with the assistance of SAP 2000 software. The findings of the research indicated that CFRP strengthening of beam-column joints effectively retarded the development of plastic hinges, regulated the inelastic deformation at the critical plastic hinge positions, and considerably enhanced the seismic performance of the building without negatively impacting the overall dynamic response. The CFRP wrapping technique is used to increase the ductility and capacity of the structure. The different levels of ground shaking are used in building design. MCE (Maximum considered earthquake) is a worst-case scenario in a structure is expected to failure of the structure and other is DBE (Design basic earthquake) is the level of ground motion that structures are designed to handle in everyday seismic activity. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers

Keywords: CFRP Wrapping; Capacity spectrum; moment curvature curve; Performance point; Non-linear static (Pushover) analysis

* Corresponding author. Tel.:+91-7982041940. E-mail address: cealok0601@gmail.com

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under the responsibility of International Conference on Structural Integrity Organizers 10.1016/j.prostr.2025.07.037