Progressive Collapse Analysis of a Reinforced Concrete Structure Using the Enhanced Local Resistance (ELR) Method: A Comparison of UFC 4-023-03 and the Turkish Earthquake Code (TEC 2018)
2025
Saffet Kılıçer
Disasters cause significant damage to structural elements in the affected regions throughout the service life of buildings. This damage typically manifests as the loss of structural elements or a reduction in load-bearing capacity. Many countries conduct research and publish regulations and analytical methods to minimize such damage. One of the primary references in this context is the UFC 4-023-03 guide, titled "Design of Buildings to Resist Progressive Collapse," issued by the United States Department of Defense. This guide addresses the phenomenon where a structure experiences element loss due to various disasters, potentially leading to progressive collapse. The guide proposes three methodologies for assessing the progressive collapse resistance of structures: the Alternative Path method (AP), the Tie Force method (TF), and the Enhanced Linear Resistance method (ELR). In developing countries such as Türkiye, there are no specific regulations addressing the progressive collapse phenomenon. As a result, structures of critical importance are constructed without such provisions. In this study, a reinforced concrete building was analysed using the Enhanced Linear Resistance method, following the UFC 4-023-03 guidelines and the Turkish Earthquake Code (TEC). The objective is to identify the differences and commonalities between the UFC and the regulatory framework in Türkiye, where structures are not explicitly designed to resist progressive collapse. At the conclusion of the study, shear demand values of structural elements and other relevant parameters were comparatively presented.
Show more [+] Less [-]Bibliographic information
This bibliographic record has been provided by Directory of Open Access Journals