Influence of the tie reinforcement on the development of a collapse caused by the failure of an edge column in RC flat slab system

Archives of civil engineering

article

Lidia Buda-Ożóg¹  Joanna Zięba¹  Katarzyna Sieńkowska¹  Damian Nykiel¹ 

[1] Department of Building Structures, Faculty of Civil Engineering and Environmental Engineering, Rzeszow University of Technology

关键词: reinforcement;    tie reinforcement;    progressive failure;    edge column;    RC flat slab system;    deformation;   

DOI  :  10.24425/ace.2023.144158

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

RC flat slabs are one of the most popular and effective methods of shaping plates in buildings. Although failures of entire structures are relatively rare, they cannot be excluded from the occupancy cycle of the facility. The research analysis presented in this paper is an attempt to understand more precisely the phenomena that occur in the RC flat slab system and to assess the influence of the additional protection of the flat slabs against progressive collapse in the case of failure of one of the supports. The results were obtained from destructive experimental investigations of a flat reinforced concrete slab made in scale 1:3. The collapse in the analysed model was simulated by removing three edge columns and additional loading by means of hydraulic actuator. In place of the columns removed, differential tie reinforcement was applied. The results obtained confirm that the structure achieved a much higher ultimate load than the one resulting from the design calculations.

【 授权许可】

Unknown