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Realistic Fire Behavior and Stability of Steel Building Structures and Sub-systems

钢建筑结构和子系统的真实火灾行为和稳定性

基本信息

批准号：
0601201
负责人：
Amit Varma
金额：
$ 14.82万
依托单位：
Purdue University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2006
资助国家：
美国
起止时间：
2006-07-15 至 2010-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0601201&HistoricalAwards=false
关键词：
Realistic Fire Behavior Stability Steel

项目摘要

Abstract CMS 0601201The fundamental behavior and stability (failure resistance) of steel building structures and column subsystems subjected to realistic fire loading will be investigated. Prior research has not addressed this issue adequately. It has focused more on conducting standard ASTM E119 fire tests of individual members (columns) and floor sub-assemblies. As a result, the current fire resistant design provisions do not account for overall structural behavior and stability under realistic fire loading, and are mostly prescriptive Two of the major recommendations made by NIST investigators after studying the World Trade Center collapse are: (1) to develop test methods, analytical tools, and guidelines for evaluating the fire performance of building structures as complete system, and (2) to develop performance-based fire resistant design provisions for building structures. The research objective of this project are (1) To investigate experimentally the fundamental behavior and stability (up to failure) of steel column sub-systems under structural loads and realistic fire loading effects; (2) To develop and validate analytical (numerical) models that predict response of steel systems to realistic fire loading up to failure; (3) To develop analytical models and investigate the overall behavior and failure of 3D building structures subjected to service loads and realistic compartment fire loading, while accounting for the complex behavior and failure of the column sub-systems comprising the compartments.

摘要本文研究了钢结构和柱子系统在火灾荷载作用下的基本性能和稳定性（抗破坏能力）。先前的研究没有充分解决这个问题。它更侧重于对单个构件（柱）和地板组件进行标准ASTM E119防火测试。因此，目前的防火设计规定并没有考虑到实际火灾荷载下的整体结构行为和稳定性，而且大多是规范性的，NIST调查人员在研究世贸中心倒塌后提出的两个主要建议是：(1)制定测试方法、分析工具和指南，以评估建筑结构作为完整系统的防火性能；(2)制定基于性能的建筑结构防火设计规定。本课题的研究目标是：(1)试验研究钢柱子系统在结构荷载和火灾荷载作用下的基本性能和稳定性（直至破坏）；(2)开发和验证分析（数值）模型，预测钢系统对实际火灾载荷直至失效的反应；(3)建立分析模型，研究三维建筑结构在使用荷载和实际火灾荷载作用下的整体行为和破坏，同时考虑到组成隔室的柱子系统的复杂行为和破坏。