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Lightweight Design of Main Girder of Bridge Erector Based on Enhanced BWO Algorithm
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Yi CHEN1, Jiang-feng ZHAO2, Jun-qiang SUN3, Gang-feng WANG1, *, Yan-ni SHI1, Cheng-hao ZHANG4
Science Technology and Engineering | 2025, 25(12) : 4986 - 4994
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Science Technology and Engineering | 2025, 25(12): 4986-4994
• Papers·Mechanical and Instrumental Industry •
Lightweight Design of Main Girder of Bridge Erector Based on Enhanced BWO Algorithm
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Yi CHEN1, Jiang-feng ZHAO2, Jun-qiang SUN3, Gang-feng WANG1, *, Yan-ni SHI1, Cheng-hao ZHANG4
Affiliations
  • 1 Key Laboratory of Road Construction Technology and Equipment of MOE, Chang'an University, Xi'an 710064, China
  • 2 CCCC Tunnel Engineering Company Limited, Nanjing 211122, China
  • 3 Gansu Special Equipment Technical Inspection Center, Lanzhou 730000, China
  • 4 School of Transportation Engineering, Chang'an University, Xi'an 710064, China
Published: 2025-04-28 doi: 10.12404/j.issn.1671-1815.2403940
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Under the traditional design scheme, the design quantity of main girder of the bridge erector is redundant and there are many consumables, which will reduce the production efficiency, and the existing optimization methods have the problem of low convergence accuracy. An enhanced beluga whale optimization (EBWO) based on quadratic interpolation strategy was proposed, and lightweight design of main girder of the 600t bridge erector was carried out. Firstly, six test functions were applied to evaluate and compare the effectiveness of the beluga whale optimization (BWO), EBWO and three other prevalent optimization algorithms, focusing on their convergence characteristics. Then, a mechanical analysis was conducted on the bridge erector girder under the real loading conditions. An optimization model was established by combining bridge girder design specifications and mechanical requirements, and the cross-sectional area optimization of main girder of the bridge erector was carried out. The results show that EBWO has the enhanced stability and convergence characteristics. It is proved that the optimized main girder is reduced by 19.3%, and can meet the safety requirements.

beluga whale optimization(BWO)  /  quadratic interpolation strategy  /  bridge erector  /  main girder  /  lightweight design
Yi CHEN, Jiang-feng ZHAO, Jun-qiang SUN, Gang-feng WANG, Yan-ni SHI, Cheng-hao ZHANG. Lightweight Design of Main Girder of Bridge Erector Based on Enhanced BWO Algorithm[J]. Science Technology and Engineering, 2025 , 25 (12) : 4986 -4994 . DOI: 10.12404/j.issn.1671-1815.2403940
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Year 2025 volume 25 Issue 12
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Article Info
doi: 10.12404/j.issn.1671-1815.2403940
  • Receive Date：2024-05-28
  • Online Date：2025-07-09
  • Published：2025-04-28
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History
  • Received：2024-05-28
  • Revised：2025-02-06
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Affiliations
    1 Key Laboratory of Road Construction Technology and Equipment of MOE, Chang'an University, Xi'an 710064, China
    2 CCCC Tunnel Engineering Company Limited, Nanjing 211122, China
    3 Gansu Special Equipment Technical Inspection Center, Lanzhou 730000, China
    4 School of Transportation Engineering, Chang'an University, Xi'an 710064, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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