铁道标准设计2025，Vol.69Issue(9)：87-94,8.DOI:10.13238/j.issn.1004-2954.202306230002
铁路桥跨方案自动布置算法初探
Preliminary Study on Automatic Layout Algorithm for Railway Bridge Span Schemes
摘要
Abstract
To address the challenges of multiple influencing factors,high design complexity,and low efficiency in manual design of high-speed railway bridge span schemes in China,an automatic layout algorithm for railway bridge span schemes is developed to realize the automatic scheme generation meeting the constraints and recommended optimal solutions.The bridge span layout problem was abstracted as an optimization problem subject to constraints from control point sets and beam type libraries.Using a multi-strategy fusion approach and simulating the span layout workflow,a main beam layout algorithm was developed,using a greedy strategy for selecting main beams at control points.Then,the main beam bridging algorithm was developed by backtracking and dynamic programming strategies to bridge the main beam segments between adjacent control points.Finally,a bridge span scheme evaluation algorithm was constructed based on expert scoring,using combined evaluation indices such as beam cost and clearance-violating piers,to evaluate multiple schemes and recommend the optimal ones.Simulation design verification on Changsha-Ganzhou High-speed Railway showed that the algorithm greatly improved the work efficiency of bridge span layout.关键词
高速铁路/铁路桥梁/桥跨方案/布孔设计/约束条件/回溯策略/贪心策略/动态规划策略Key words
high-speed railway/railway bridge/bridge span scheme/span layout design/constraint/backtracking strategy/greedy strategy/dynamic programming strategy分类
交通工程引用本文复制引用
柏华军,郑洪,陈瓴,刘峰..铁路桥跨方案自动布置算法初探[J].铁道标准设计,2025,69(9):87-94,8.基金项目
国家重点研发计划项目(2021YFB2600400) （2021YFB2600400）
中国铁建股份有限公司科技研发计划项目(2022-A02) （2022-A02）
