湖南大学学报（自然科学版）2026，Vol.53Issue(7)：67-74,8.DOI:10.16339/j.cnki.hdxbzkb.2026061
变曲率竖曲线梁顶推支点标高调整优化方法
Optimization method for support elevation adjustment during girder launching with vertical variable curvatures
摘要
Abstract
To expedite the determination of the support elevation adjustment scheme during the girder launching,an optimization method of support elevation adjustment with vertical curvature is proposed.The optimization problem is analyzed for adjusting the support elevation,with the optimization variables,objective functions,and constraints clearly clarified.An optimization method for support elevation adjustment is proposed,based on the principle of"accurately adjusting and optimizing the support elevation for over-limit supports,and then integrating the support elevation adjustment schemes".The concept of elevation modulus is employed to clarify the principle of support elevation adjustment and to enable stepwise adjustment.MATLAB and ANSYS are used to implement the support elevation optimization program,allowing the rapid determination of the support elevation adjustment scheme.The proposed algorithm is applied to obtain a support elevation adjustment scheme for a steel box girder launching.The results show that,compared with the exhaustive method,the proposed support elevation optimization method increases calculation efficiency by 25 times.It also reduces the steel consumption of the support plates by 69%while ensuring the safety and reliability of structural stresses during the jacking process.This method thus demonstrates significant economic benefits.This study proposes an efficient optimized computational framework for formulating the support elevation adjustment scheme in vertical variable curvature girder during launching procedures.关键词
变曲率竖曲线梁/顶推/支点标高调整/优化/联合仿真Key words
girder with vertically varied curvatures/incremental launching/support elevation adjustment/optimization/co-simulation分类
交通工程引用本文复制引用
周斌,陶友海,朱劲松..变曲率竖曲线梁顶推支点标高调整优化方法[J].湖南大学学报（自然科学版）,2026,53(7):67-74,8.基金项目
国家自然科学基金资助项目(52378310),National Nature Science Foundation of China(52378310) （52378310）
