Analysis of a Concrete Structure that Was Exposed to Fires in the Metropolitan Region of Recife
Analysis of a Concrete Structure that Was Exposed to Fires in the Metropolitan Region of Recife作者机构：Department of Civil Engineering Catholic University of Pernambuco Recife 51110-200 Brazil Department of Civil Engineering University of Pernambuco Recife 51110-200 Brazil
出 版 物：《Journal of Civil Engineering and Architecture》 (土木工程与建筑（英文版）)
年 卷 期：2016年第10卷第3期
页 面：344-352页
学科分类：03[法学] 08[工学] 0837[工学-安全科学与工程] 0838[工学-公安技术] 0306[法学-公安学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）]
主 题：Awning pathological manifestations durability
摘 要：In large cities, news about fires in buildings are powered by problems such as old wiring and no maintenance. Accidents with chemicals and human error, which when added to the different characteristics of each fire and structures can generate the factors causing these disasters. The gradual rise in temperature causes a different effect in mortar and concrete parts, verifying the change in coloring provided to loss of mechanical strength and surface crumbling, cracking and disintegration of the structure itself. This paper presents a case study in which a building that is located in the metropolitan region of Recife was exposed to a fire situation. The metropolitan region of Recife is composed of several old buildings that by virtue of their age may have delayed construction methods, and may expose the fragility of the concrete used in its construction on a fire situation. The concrete structures are recognized by the good resistance to fire because of the thermal characteristics of the material, however, the temperature rise in the concrete elements in characteristic causes a reduction in strength and modulus of elasticity of the material, the loss in stiffness leading to polyphase degradation of reinforced concrete, structural parts can lead to ruin, but when properly sized and executed, the concrete can serve as a proactive agent to be exposed to high temperatures, as the same may be subjected to high temperatures accidentally or they may be part of their normal work.
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