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Updated: Mar 11, 2026

Operation of the Collaborative Composite Manufacturing CCM System
Published on: October 1, 2019
Application of quick group search optimizer with passive congregation algorithm in cable force optimization of
Guang Qin1, Liangbo Wang2, Zhan Wu2
1Foshan Road and Bridge Supervision Station Corporation Limited, Foshan, 528313, China. qinguang1984@163.com.
None:
This study introduces the Quick Group Search Optimizer with Passive Congregation (QGSOPC) coupled with the influence-matrix method to optimize cable forces in a completed 1 070 m, five-span, twin-tower cable-stayed bridge. Compared with the original design, QGSOPC reduces maximum tower-top displacement by 83.8% (84.1 → 13.6 mm), girder deflection by 41.9% (236.7 → 137.5 mm) and peak bending moment by 11% (118 078 → 105 120 kN·m), while lowering the composite objective function by 40.7%. A comparative analysis using GSO confirms the enhanced performance of the proposed algorithm. The results demonstrate that QGSOPC offers a practical, efficient tool for achieving the "straight-tower & level-beam" completion state of long-span cable-stayed bridges.
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