Vol. 6 No. 01 (2025)
Articles

Evaluating the Performance of Irregular Low-Rise RC Building Through Static Non-Linear Pushover Analysis

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  • Dayang Afiqah
DOI: https://doi.org/10.38094/jocef601100

Published 2025-04-21

Keywords

  • Earthquake,
  • RC Building,
  • SAP2000,
  • Pushover Analysis,
  • Vulnerability

How to Cite

[1]
Dayang Afiqah, “Evaluating the Performance of Irregular Low-Rise RC Building Through Static Non-Linear Pushover Analysis”, JoCEF, vol. 6, no. 01, pp. 32 - 42, Apr. 2025.

Copyright (c) 2025

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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Abstract

In this research, the performance of irregular low-rise RC buildings was evaluated through Static Non-linear Pushover Analysis (POA) and by using SAP 2000. Moreover, the effects of the seismic capacity of irregular low-rise reinforced concrete buildings in Sabah were also conducted through vulnerability and fragility assessments. There are four models to analyse. The first model, which is Model 1, is the actual design of the building, while the rest of the models are designs that have been proposed to analyse how the irregular plan can affect the seismic performance of the building. Models 2 and 3 are designed with irregular shapes, while Model 4 is designed with the open slab. Then, the model will be categorised in its three (3) vulnerability assessment parameters, which are different type of concrete strength, soil structure interaction, and plan irregularity. From the analysis, Model 4 has a better performance level of building than other models in similar concrete strength of 30MPa because the building has a large and different eccentricity due to the design. Among soil structure interaction models, Model 3 was the strongest since it had a better performance level than the other models. It has the smallest plan area among other models, which might minimise the eccentricity and the irregular lateral displacement. For a different concrete strength comparison, the higher the concrete strength, the better the performance of the building.

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