Bentley Case Studies Advanced Construction of Taihong Yangtze River Bridge with IoT
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Advanced Construction of Taihong Yangtze River Bridge with IoT

Bentley
Functional Applications - Product Lifecycle Management Systems (PLM)
Networks & Connectivity - Routers & Bridges
Cement
Construction & Infrastructure
Maintenance
Product Research & Development
Construction Management
Construction Site Monitoring
System Integration
Testing & Certification
The Taihong Yangtze River Bridge, a CNY 900 million construction project, is a crucial part of the 77-kilometer highway network linking the Nanchuan District and Lianjiang New Area in China’s Chongqing municipality. The bridge, designed as a suspension bridge, includes an 808-meter steel box beam with a complex structure required to sustain a high-load capacity amid complicated terrain. The scale and complexity of the project necessitated pushing the boundaries of engineering data to ensure construction quality and safety. The project owner, China Railway Changjiang Transport Design Group (CRCTDG), had to determine how they could use the engineering information to increase the performance, quality, safety, scheduling, and cost of each stage of the lifecycle. They also realized that they needed to digitalize engineering workflows and avoid irreversible and costly errors. Traditional manual and paper-based data exchange and construction methods would not be sufficient to achieve the accuracy and public safety that they targeted.
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The customer, China Railway Changjiang Transport Design Group (CRCTDG), is a leading organization in the field of bridge construction. They were hired for the construction of the Taihong Yangtze River Bridge due to their expertise and experience in handling complex projects. They worked in collaboration with Guizhou Communications Construction Group and Guizhou Bridge Construction Group, along with numerous other components and contributors in various disciplines. CRCTDG is known for its innovative approach to construction, often leveraging advanced technologies and methodologies to improve efficiency, safety, and quality. In this project, they aimed to digitalize engineering workflows and avoid irreversible and costly errors, pushing the boundaries of traditional construction methods.
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CRCTDG selected Bentley’s ContextCapture to process unmanned aerial survey data and establish a highly precise 3D model. They also used the application to create a terrain model of the bridge site, display contours as lines or triangular meshes, and produce effective elevation and slope analysis. The use of high-precision orthophoto maps, point clouds, or reality scanning technologies generated terrain models of the bridge site and greatly improved the efficiency and accuracy of the work. MicroStation was used to streamline and integrate models from multiple software applications, providing a single data source throughout the entire project lifecycle. They performed 3D laser scanning of the complicated terrain via unmanned aerial vehicles for rapid and detailed data collection. Using ContextCapture, they processed the point clouds and survey data to generate geological models of the bridge site. These digital survey and 3D modeling methods also helped them obtain accurate 3D measurements of the steel box girder components to simulate assembly, helping intelligently manufacture the steel box beam.
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By establishing a 3D BIM-based construction management platform to monitor construction of the Taihong Yangtze River Bridge, CRCTDG improved construction management quality and efficiency, eliminated the information silos and bottlenecks of conventional construction, and established lifecycle BIM operations and maintenance. The improved visualization provided all participants with an experience that simulated being on site, regardless of their location. This optimized planning and scheduling. Through parametric modeling and automated processes, they improved design efficiencies. Bentley’s solutions provided dynamic digital management of construction planning and resource allocation to effectively carry out progress control and lower construction costs. Working in the digitally simulated construction environment, as well as predicting and overcoming potential problems in advance, ensured quality and safety. The complete visual model lays the foundation for the intelligent manufacturing and construction management of similar large steel bridge projects.
Bridge design time reduced by 300 hours, helping complete design 30 days early and save CNY 500,000.
Establishing digital construction management saved CNY 1.8 million in management costs and shortened construction by 47 days.
Improved visualization helped reduce the time spent traveling to the site by 23 days.
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