《中国工程科学》 >> 2020年 第22卷 第3期 doi: 10.15302/J-SSCAE-2020.03.018
我国铁路钢结构发展回顾与展望
1. 中国铁道科学研究院集团有限公司铁道建筑研究所,北京 100081;
2. 中国铁道科学研究院集团有限公司,北京 10081;
3. 中国铁道学会,北京 100844
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摘要
新中国成立以来我国铁路事业成就显著,在国民经济发展中发挥了重要作用,尤其是近15 年来高速铁路建设飞速发展,成为一张靓丽的国家名片。钢结构对于铁路发展起着不可替代且极为关键的作用,在铁路大跨度钢桥、高速铁路车站屋架结构等工程中获得广泛应用。站位于新的历史阶段,适时对我国铁路钢结构发展进行回顾和展望,具有一定的工程实践价值和理论研究价值。本文分别从材料、结构、使用规模的角度,对大跨度钢桥、车站屋架等铁路钢结构的发展进行了系统回顾;提出了我国铁路钢结构轻量化、装配化、信息化、耐久性和高韧性的技术发展趋势,总结了铁路钢结构在设计、施工、运维和材质等方面的未来重点工作。随着应用地域和环境的多样化,铁路钢结构仍然面临一系列有待攻克的技术难题,如耐候设计、海洋恶劣环境施工、高原少维护等,需持续加大研究投入以保障关键技术突破与运用。
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