Virtual Trial Assembly of Complex Bridge Towers Based on Point Cloud Data

Wang Wenyuan; Liao Yue; Liu Jiepeng; Huang Feng; Yang Wenshu; Peng Yingchuan

doi:10.13206/j.gjgS25121701

Volume 41 Issue 6

Jun. 2026

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Wang Wenyuan, Liao Yue, Liu Jiepeng, Huang Feng, Yang Wenshu, Peng Yingchuan. Virtual Trial Assembly of Complex Bridge Towers Based on Point Cloud Data[J]. STEEL CONSTRUCTION(Chinese & English), 2026, 41(6): 36-43. doi: 10.13206/j.gjgS25121701

Citation:

Wang Wenyuan, Liao Yue, Liu Jiepeng, Huang Feng, Yang Wenshu, Peng Yingchuan. Virtual Trial Assembly of Complex Bridge Towers Based on Point Cloud Data[J]. STEEL CONSTRUCTION(Chinese & English), 2026, 41(6): 36-43. doi: 10.13206/j.gjgS25121701

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Virtual Trial Assembly of Complex Bridge Towers Based on Point Cloud Data

doi: 10.13206/j.gjgS25121701

Wang Wenyuan^1,2,
Liao Yue^{1,2
,
,},
Liu Jiepeng^1,2,
Huang Feng^3,4,
Yang Wenshu^3,4,
Peng Yingchuan^3,4

1. School of Civil Engineering, Chongqing University, Chongqing 400045, China;
2. State Key Laboratory of Safety and Resilience of Civil Engineering in Mountain Area, Chongqing 400045, China;
3. Sixth Engineering Co., Ltd., China Railway Major Bridge Engineering Group Co., Ltd., Wuhan 430101, China;
4. Fengcheng Branch, China Railway Major Bridge Engineering Group Co., Ltd., Fengcheng 331104, China

Received Date: 2025-12-17
Available Online: 2026-07-06

Abstract

Abstract

To enhance the quality and digitalization in the construction of complex bridge towers， a virtual trial assembly （VTA） method for complex bridge towers based on point cloud data was proposed. The method addressed the issue of describing the complex geometric shapes of bridge towers by introducing a feature-plane-based detection section segmentation method and a prior-knowledge-based feature point extraction method， enabling digital dimensional measurement for complex bridge towers. Based on the fundamental information of different engineering projects， VTA technical routes were constructed from both the design model perspective and the geometric feature perspective. Based on the VTA results， finite element simulation of the flame straightening process was conducted to analyze deformation correction for joint misalignments. This provided technical reference and guidance for subsequent repair and adjustment during construction. The results showed that the deviation between the point-cloud-based dimensional inspection and total station measurements was controlled within ±2 mm. The VTA method effectively identified joint misalignments， and by integrating finite element simulation， deformation correction parameters were obtained in advance to provide guidance for corrective actions during construction. The proposed method integrates digital dimensional measurement， VTA， and correction process simulation， significantly enhancing the digital construction capability of complex bridge towers and providing a valuable reference for similar engineering projects.
- bridge engineering,
- virtual trial assembly,
- point cloud data,
- complex bridge tower,
- dimensional measurement,
- simulation analysis

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References(33)

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