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Behavior of Steel Structures under Elevated Temperature

机译：高温下钢结构的行为

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摘要

The purpose of this paper is to investigate the damages of an industrial steel building affected by a fire event. The author's main objectives are to identify different types of damages produced by fire to the building structure and nearby built environment, highlighting the idea that nowadays the fire safety must be seen as a sustainable practice. The presented research is based on a case study regarding the damages of an industrial steel building subjected to fire. Structural design of buildings exposed to fire requires the achievement of two main objectives; the first one is to reduce the loss of life and the second one regards the load bearing resistance of the building for a specified period of time. The behavior of steel structures under elevated temperature can be assessed using both numerical simulations and experimental studies. There are a lot of studies regarding the behavior of multistorey steel buildings under fire conditions and progressive collapse mechanisms. Unfortunately, little information regarding the industrial steel buildings subjected to fire can be found. Analyzing the behavior of single storey steel buildings at elevated temperatures, it can be conclude that not always the collapse of an element leads to the collapse of the entire structure. A correct expertise of the damage level of steel structures exposed to fire, in order to identify the elements which can be kept and which have to be replaced, in most of the cases lead to a lower consumption of materials and financial resources.
机译：本文的目的是调查受火灾事件影响的工业钢铁建筑的损害。提交人的主要目标是确定对建筑物结构和附近建造环境产生的不同类型的损害，突出了如今，火灾安全必须被视为可持续实践的想法。本研究基于关于遭受火灾的工业钢结构损害的案例研究。暴露于火灾的建筑物的结构设计需要实现两个主要目标;第一个是减少生命的损失，第二个一个关于建筑物的承载阻力指定的时间段。可以使用数值模拟和实验研究评估升高温度下的钢结构的行为。在火灾条件下，有很多关于多体钢制建筑行为的研究和逐步崩溃机制。不幸的是，可以找到关于经过火灾的工业钢铁建筑的少数信息。分析升高温度的单层钢大厦的行为，可以得出结论，并不总是元素的崩溃导致整个结构的崩溃。在大多数情况下识别可以保留的钢结构的钢结构损坏水平的正确专长，大部分情况导致材料和财务资源的消耗较低。

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