應用研究 2025年 第卷 第18期

DOI: 10.7672 / sgjs2025180087

佛山特大橋鋼主梁架設方案研究

顧建華1,張晉云2,孫軍3,王貴羽3,陳濤?,楊景新3

作者簡介:

顧建華,正高級工程師,E-mail: 0371gjh@ 163. com

作者單位:

1.廣東省鐵路建設投資集團有限公司,廣東廣州 510665; 2.廣州鐵路職業技術學院,廣東廣州 511300;3.中鐵廣州工程局集團有限公司,廣東廣州 511458; 4.中鐵大橋科學研究院有限公司,湖北武漢 430034

摘要:

以新建廣湛高鐵佛山特大橋跨東平水道斜拉橋為依托,分析了 3 種不同上部結構鋼主梁架設方案,方案主要區別是濕接縫與預應力施工時間不同。通過有限元計算分析,從結構在施工過程中受力、成橋受力、索力、成橋線形、鋼梁安裝過程中的橫向變形及工期等方面進行對比分析,經綜合比選后,最終確定方案 3 為最優方案。

English:

Based on the new Foshan Bridge of Guangzhan High-speed Railway across Dongping WaterwayCable-stayed Bridge, three different erection schemes of upper structural steel girder are analyzed. Themain difference among the schemes is that the wet joints and the prestressed construction time aredifferent. Through the finite element calculation and analysis, the force of the structure in theconstruction process, the force of the bridge, the cable force, the alignment of the bridge, the lateraldeformation in the steel girder installation process and the construction period are compared andanalyzed. After comprehensive comparison, the scheme 3 is finally determined as the optimal scheme.