桥式起重机桥架金属结构设计优化及维保研究

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中图分类号：TH215 文献标识码：A文章编号：1672-3791（2026）03-0120-03

Researchon Design Optimization and Maintenance ofMetal Structure of Bridge Frame of Bridge Crane

ZHANG Haipeng

Guodian Investment Laiyang Nuclear Energy Co.，Ltd.，Yantai， Shandong Province，2652Oo China Abstract：Due to the problems of insufficient global optimizationand low maintenance eficiency in traditional designof bridge cranes，this research adopts an explanatory structural model to construct a parameter system for the main beam of the bridge frame，and quantitatively evaluates the performance of the bridge frame by combining structural functional derivative coeficients.The results indicate that the optimized design achieves a 13.1% reduction in self weight，the material cost and maintenance cost decreased by 17.97% and 25% respectively，and the optimized design increased the fatigue life of the structure by 2.3 times and reduced the design cycle by about 40.5% Optimizing design has certain effectivenes incost control while ensuring load-bearing capacity.This provides technical support for the safe and effcient operation ofbridge cranes，and has important reference value for promoting the sustainable development of the lifting machinery industry.

KeyWords： Bridge crane; Structural design; Interpretibve structural modeling; Structural functional derivationcofficient; Fatigue life

桥式起重机被广泛应用于制造业、港口码头和物流行业等场景，其桥架金属结构作为主要承载部件，直接影响整机的安全性、稳定性和经济性[1]。（剩余3244字）