高强钢结构抗火研究进展

发布时间：2019-05-29 11:26

【摘要】：高强钢结构的性能与应用是近年来建筑结构领域的热点研究课题之一,其火灾性能至关重要.本文总结国内外高强钢结构的抗火研究现状,包括高强钢高温材料性能、高强钢构件抗火性能以及高强钢用于梁柱连接节点的抗火性能研究等.不同种类高强钢的高温力学性能差异显著,且基于普通钢材料力学性能的现行钢结构设计规范均不能经济可靠地指导高强钢结构防火设计;国内外对高强钢构件及节点的抗火性能研究以理论分析和数值模拟为主,试验研究相对匮乏,远不能满足高强钢结构设计需求.因此,有必要进行更多更深入的试验和理论研究,以完善高强钢结构的设计理论,为相关设计规范修订提供依据.
[Abstract]:The performance and application of high strength steel structure is one of the hot research topics in the field of building structure in recent years, and its fire performance is very important. In this paper, the research status of fire resistance of high strength steel structures at home and abroad is summarized, including the properties of high strength steel high temperature materials, the fire resistance of high strength steel members and the fire resistance of high strength steel used in Liang Zhu joint. The high temperature mechanical properties of different kinds of high strength steel are significantly different, and the current steel structure design code based on the mechanical properties of ordinary steel materials can not guide the fire prevention design of high strength steel structure economically and reliably. The research on fire resistance of high strength steel members and joints at home and abroad is mainly based on theoretical analysis and numerical simulation, but the experimental research is relatively scarce, which is far from meeting the design requirements of high strength steel structures. Therefore, it is necessary to carry out more and more in-depth experiments and theoretical research in order to perfect the design theory of high strength steel structure and provide the basis for the revision of relevant design codes.
【作者单位】：同济大学土木工程学院;上海宝冶工程技术有限公司;
【基金】：国家自然科学基金资助项目(51408150) 财政部基金资助项目
【分类号】：TU391;TU352.5

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