河南科技大学学报（自然科学版）2025，Vol.46Issue(5)：61-69,9.DOI:10.15926/j.cnki.issn1672-6871.2025.05.008
大跨径重型钢箱梁整体智能提升工程关键技术
Key Technology of Integral Intelligent Lifting Construction of Large-span Heavy Steel Box Girder
摘要
Abstract
Based on the project of Xiaotun Bridge of Fuyi Expressway,the key technologies involved in the integral intelligent lifting of large-span heavy steel box girders were discussed.The mechanical properties of steel box girders in both synchronous and asynchronous integral lifting states were investigated using the finite element method.And the mechanical properties of the steel box girders during the lifting process were analyzed in conjunction with the on-site monitoring data.In conjunction with construction techniques such as informal lifting and micromotion lifting,an integral intelligent lifting scheme for steel box girders was proposed to address extreme conditions.An alignment system has been incorporated into the existing synchronous lifting hydraulic system,enabling precise control over the aerial orientation of the steel box girder and the stresses on each component.This approach offers valuable insights for similar projects.关键词
大跨径重型钢箱梁/整体智能提升/施工技术/提升状态/力学特性Key words
large-span heavy steel box girder/integral intelligent lifting/construction technology/lifting state/mechanical property分类
交通工程引用本文复制引用
徐红玉,栗明亮,朱书红,李文杰..大跨径重型钢箱梁整体智能提升工程关键技术[J].河南科技大学学报（自然科学版）,2025,46(5):61-69,9.基金项目
国家自然科学基金项目(51678284) （51678284）
中铁十五局集团第一工程有限公司重点科研项目(2022A1) （2022A1）
河南省科技厅产学研合作项目(2015HNCXY011) （2015HNCXY011）
