Strength and Stability of Reinforced Beam-Column Concrete Elements under Dynamic Loading with Fire Exposure Conditions
- Department of Reinforced Concrete and Masonry Structures, Moscow State University of Civil Engineering, 26 Yaroslavskoe Shosse, Moscow 129337, Russia
Published in The Fourth NZAAR International Event Series on Natural and Built Environment, Cities, Sustainability and Advanced Engineering, Kuala Lumpur, Malaysia, 27 January 2018, pages 60 to 69. New Zealand Academy of Applied Research. ISSN 2463-5979 (online), 2463-5960 (print). Indexed in the Web of Science Core Collection, Conference Proceedings Citation Index (Clarivate).
Abstract
This article gives the method of dynamic calculation of reinforced beam-column concrete elements for dynamic loadings varying with time. The results of experimental researches of reinforced concrete elements under dynamic loading in fire exposure conditions are presented, and dependence of the dynamic strengthening coefficient of the elements at a temperature up to T = 9000 C is obtained. The main scenarios that can arise in high-rise buildings with progressive fracturing are developed. The analytical calculation of the change in the load-carrying capacity of reinforced beam concrete column is carried out for different thermal-force actions. Numerical analysis of a multi-storey reinforced concrete frame in the Sap 2000 software complex is carried out, taking into account the change in the strength and deformation properties of load-carrying elements for different temperature actions by means of the plastic hinge function.
Keywords: reinforced concrete columns; beam-column elements; dynamic strength; fire exposure conditions
Rights
Copyright © New Zealand Academy of Applied Research Ltd 2018. All rights reserved. Reproduced in the GDI Academy archive from the original proceedings without change to the authors’ text.