建筑钢结构抗震设计研究进展

Research Process in Seismic Design of Building Steel Structures

中国抗震设计起步较晚,但在经历了几次重大地震后,通过吸收国外经验和自主研究,逐步建立了完整的抗震设计体系,其中也体现在钢结构领域。目前,我国钢结构抗震设计采用“三水准、两阶段”的设计方法,并已发展出基于性能的抗震设计理念。本文梳理了国内外建筑钢结构抗震设计的历史演进和最新进展,分别从我国钢结构抗震技术的历史发展过程、当前主流技术和对该领域技术的未来展望三个不同角度全面阐述了我国在钢结构抗震设计领域从无到有、从落后到逐步与世界接轨的发展过程。同时对不同时期国外发达国家在相关技术上的主要突破进行了简要概述。通过对比可见,我国钢结构抗震设计技术在过去的几十年内得到了快速的发展,但同时也论述了我国尚存的不足。最后,对我国未来在钢结构抗震相关技术和规范的发展方向给出了明确的建议。

China’s seismic design started late,but after experiencing several major earthquakes,it has gradually established a comprehensive seismic design system through the absorption of foreign experiences and independent research,resulting in significant progress in the field of steel structures.Currently,China’s steel structure seismic design adopts the“three-level,two-stage”approach and has developed a performance-based seismic design philosophy.This paper reviews the historical evolution and latest advancements in seismic design for building steel structures both domestically and internationally.It comprehensively explains China’s development process in steel structure seismic design from scratch,from lagging behind to gradually aligning with world standards,through three perspectives:the historical development of China’s steel structure seismic technology,current mainstream technologies,and future prospects for this field.On the other hand,this paper provides a brief overview of major breakthroughs in relevant technologies from developed countries at different periods.Through comparison,it is evident that China’s steel structure seismic design technology has rapidly developed over the past few decades,but the paper also discusses the existing shortcomings.Finally,clear recommendations are provided for the future development of steel structure seismic-related technologies and standards in China.