Progressive collapse analysis on 2D RC frames under impact of single interior and exterior columns

Md Kassim, Tahara Ramadzan and Mohamad Nor, Muhammad Faiz and A. Majid, Taksiah (2026) Progressive collapse analysis on 2D RC frames under impact of single interior and exterior columns. IIUM Engineering Journal, 27 (3). pp. 89-101. ISSN 1511-788X E-ISSN 2289-7860

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Abstract

Structural elements are susceptible to both local and global failures triggered by progressive collapse, making it essential in structural vulnerability assessments. This research investigates and predicts the progressive collapse behavior of two-dimensional (2D) reinforced concrete frames designed for gravity loadings, considering the removal of columns in both interior and exterior locations. Linear static and nonlinear dynamic analyses are conducted to investigate and predict the development of alternate load paths (ALPs) and dynamic structural response under column-loss scenarios using SAP2000 software. Three cases are considered: Case 1 (no column removal), Case 2 (removal of one interior column), and Case 3 (removal of one exterior column). Linear static analysis reveals that the General Services Administration (GSA) yields slightly higher, more conservative axial forces than the British Standard (BS). Regardless of where the column was removed, ALP under progressive collapse significantly altered the structural response in Case 2 and Case 3. Nonlinear dynamic analysis revealed that Case 3 exhibited the highest displacement and interstorey drift ratio (IDR), particularly under Ground Motion (GM5). The findings also demonstrate that exterior column removal triggered the highest drift demands, indicating critical structural vulnerability to progressive collapse

Item Type:	Article (Journal)
Uncontrolled Keywords:	Progressive Collapse, Column Removal, Alternate Load Path, Nonlinear Dynamic Analysis
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA495 Disasters and engineering T Technology > TA Engineering (General). Civil engineering (General) > TA630 Structural engineering (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Civil Engineering
Depositing User:	Tahara Ramadzan Md Kassim
Date Deposited:	22 Sep 2026 12:14
Last Update:	22 Sep 2026 12:14
Queue Number:	2026-09-Q5176
URI:	http://irep.iium.edu.my/id/eprint/131378
Indexed In:	SCOPUS, ERA, Google Scholar, MyCite

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