PSI - Issue 78

Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 78 (2026) 1237–1244

© 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 responsibility of XX ANIDIS Conference organizers Keywords: earthquake; reinforced concrete building; road; interruption; infill wall; debris; nonlinear time-history analysis. These results are essential for evaluating the risk of road blockage and for improving emergency planning and post-earthquake resilience in urban areas. By accounting for building typology and seismic intensity, the method provides a more detailed understanding of how infill wall failure can impact road accessibility and emergency operations. Abstract Road networks play a critical role in both everyday mobility and emergency response. However, earthquakes can compromise their functionality by damaging nearby buildings and causing debris to obstruct the pavement. Recent research highlights that debris from structural and non- structural components may extend beyond the building’s footprint, sometimes occupying a significant portion of adjacent roadways. This can hinder the passage of emergency vehicles and reduce the effectiveness of evacuation routes. Despite growing interest in this issue, many existing studies rely on simplified assumptions or focus primarily on masonry buildings. There remains a gap in tools capable of accurately assessing debris generation from reinforced concrete (RC) buildings with infill walls, particularly when considering variations in construction period, number of storeys, and infill types. This study introduces a new methodology to estimate debris resulting from the collapse of infill walls in RC buildings subjected to seismic loading. The proposed tool is based on nonlinear dynamic analyses of a set of buildings with diverse characteristics, including different heights, construction ages, and infill configurations. It quantifies both the volume of fallen material and its potential projection distance onto adjacent roads, for increasing levels of seismic intensity. XX ANIDIS Conference Analytical evaluation of debris due to the collapse of infill walls in reinforced concrete structures Mariano Di Domenico*, Paolo Ricci, Gerardo M. Verderame Department of Structures for Engineering and Architecture, University of Naples Federico II, Via Claudio 21, Naples 80125

* Corresponding author. Tel.: +390817683341 E-mail address: mariano.didomenico@unina.it

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 responsibility of XX ANIDIS Conference organizers 10.1016/j.prostr.2025.12.158