Analysis of Beam Strengthening Using Carbon Fiber Reinforced Polymer (CFRP) in Multi-Storey Buildings

Aviska Triayaska; Hanie Teki Tjendani; Buntara Sthenly Gan

doi:10.55927/fjst.v4i12.354

Authors

Aviska Triayaska Universitas 17 Agustus 1945 Surabaya
Hanie Teki Tjendani Universitas 17 Agustus 1945 Surabaya
Buntara Sthenly Gan Nihon University

DOI:

https://doi.org/10.55927/fjst.v4i12.354

Keywords:

Seismic Performance, CFRP Strengthening, Beam Elements, ACI 440.2R-17, Pushover Analysis

Abstract

Indonesia is located in a region with high seismic activity due to tectonic plate interactions and its position along the Pacific Ring of Fire. The update of the seismic design code from SNI 1726:2012 to SNI 1726:2019 has increased seismic demand, raising concerns regarding the safety of existing multi-storey buildings. This study aims to evaluate the seismic performance of a multi-storey building in Surabaya using a performance-based approach in accorandce with ASCE 41-17. Nonlinear static (pushover) analysis was conducted to identify beam elements exceeding the Collapse Prevention performance limit under BSE-2E earthquake demand. Subsequently, structural strengthening using Carbon Fiber Reinforced Polymer (CFRP) was implemented based on ACI 440.2R-17 provisions. The results indicate that CFRP strengthening effectively enhances beam capacity and overall structural performance, enabling the building to achieve the Life Safety performance level under the maximum design earthquake.

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