The development of concrete bridge construction technology has evolved through two major stages of industrialization: cast-in-place concrete construction and prefabricated assembly construction. Compared to traditional cast-in-place methods, prefabricated assembly offers several advantages, including shorter construction periods, reduced disruption to existing traffic, lower engineering risks, improved quality, and more effective cost control.
The entire project lifecycle encompasses multiple phases: planning, design, construction, operation and maintenance, and ultimately demolition.
1. Planning and Design Phase
During the design phase of prefabricated bridge component manufacturing plants, BIM technology is used to create detailed 3D models of the design scheme. This allows for collaborative decision-making through three-dimensional visualization.
Lighting performance simulations are conducted for factory buildings at night to assist in design optimization.
Production lines within the processing plant are modeled in 3D, and VR technology is employed to review and optimize the layout, enhancing workstation arrangement and boosting production efficiency.
2. Component Manufacturing Stage
Steel bars for standard components are modeled to improve the accuracy of steel bar sampling and accelerate cutting processes, ensuring manufacturing requirements are met.
A manufacturing execution system, integrating BIM and IoT technologies, manages work orders, raw materials, steel reinforcement processing, concrete batching, component prefabrication, quality control, inventory, and logistics. This system supports lean manufacturing practices.
3. Construction Phase
Digital construction technologies enable 24-hour monitoring of construction sites, walls, and worker housing areas to effectively prevent unauthorized activities.
Information technologies, including internet-based tools, ensure the smooth operation of personnel and equipment, while also facilitating emergency prevention and response.
A project management platform powered by BIM supports standardized construction procedures. It assists in preparing work breakdown structures (WBS), schedules, and workload plans, and provides visual training materials for production processes.
Work tasks for project personnel are automatically assigned based on job standards. Daily construction activities can be managed via mobile devices, and project progress and task execution statuses can be monitored through desktop terminals, enabling standardized construction management.
The platform also offers project construction models with detailed sub-item displays and supports two-way queries.
Using BIM technology to simulate component lifting helps identify potential issues such as weight imbalances or collisions early, improving safety and feasibility while reducing lifting costs.
4. Operation and Maintenance Phase
The completion and acceptance data of the engineering project are linked directly with the building information model to facilitate digital handover.
Embedding chips and QR codes within prefabricated components enables tracing of information across all stages of construction, ensuring comprehensive product information traceability.
Combining BIM with digital information systems allows for end-to-end traceability throughout component production, lifecycle management, and the creation of permanent engineering archives.
This integrated platform provides detailed data to support bridge operation and maintenance, offers technical assistance for industrial chain integration and construction, and promotes the lean, intelligent advancement of the industry.
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