Project Introduction
The Tianjin Gaoyin Financial 117 Building stands as one of the 20 major service industry projects in Tianjin. It features 117 floors above ground (including 130 equipment floors), reaching a height of 597 meters, with a structural height of 596.2 meters. The total construction area spans 847,000 square meters, setting the record for the largest single-building area in civil construction.
Project Challenges:
1. The foundation pit measures 394 meters in length and 315 meters in width, covering an excavation area of 124,100 square meters. This is the world’s largest excavation for a single building foundation pit.
2. The giant columns are multi-cavity hexagonal steel tube concrete columns. Each column has an enormous base section size of 24 meters by 22.8 meters, and the maximum cross-sectional cavity area reaches 45 square meters, setting a world record. The thickest steel plate used measures 100mm. Due to their size, each column must be assembled on-site from multiple pieces.
As the first general contracting project handled by China Construction Third Engineering Bureau, coordinating and managing the design and subcontracting work presented new challenges. To address these, the Tianjin 117 project team collaborated with Guanglian Da Company to actively introduce BIM technology, creating a collaborative application platform.
By leveraging BIM products such as MagiCAD and the GBIMS construction management system, the project achieved significant technological innovation and management improvements.
Application Achievements
Cost Savings
Design issues and drawing errors were identified and corrected early, avoiding rework and reducing material waste. This effectively shortened the construction period, with the overall project progress currently 90 days ahead of schedule.
Management Improvements
Enhanced job collaboration and information sharing have improved management processes, particularly in communication, document handling, and business workflows. Utilizing BIM models for measurement, quantity reporting, and change management increased calculation efficiency by over 30%, reduced accuracy errors to less than 2%, and improved drawing query efficiency by 70%.
Standardized Construction
A comprehensive BIM modeling standard and work specifications have been established, creating a solid foundation for successful BIM implementation throughout the entire project.
Results Presentation
BIM Application Platform
Using the GBIMS construction management system, a BIM data center and collaborative application platform was developed for the Tianjin 117 project. This platform integrates all professional model information and business data, facilitating collaboration across multiple departments and roles, and supporting refined project management.
Schedule Management
Custom plugins were developed to integrate data between Project Server and the BIM platform. This integration controls the pre-approval process for plan preparation via Project Server, while actual progress is managed through the BIM platform.
Standard Specifications
A comprehensive set of modeling standards and work specifications has been created, including unified data exchange standards, modeling specifications for various disciplines, BIM work procedures, processes, systems, and achievement delivery standards.
3D Model-Based Calculations
The project conducted research on 3D calculations using detailed design models for super high-rise buildings. By developing Revit plugins to export GFC files, the civil engineering model was imported directly into Guanglian Da’s graphic calculation software GCL, eliminating the need for secondary modeling.
Drawing Management
Through customized project coding, drawing information is linked directly to the BIM model. Users can click on elements within the model to view corresponding construction drawings, including queries and downloads of various drawing versions, as well as attachments like drawing modification forms and design change negotiation forms.
Additional Applications
Quality and Safety Management: Quality and safety data are collected via mobile devices and published in real-time to the BIM platform. Responsibilities are assigned for tracking and feedback.
Contract Management: BIM technology is utilized to manage contract planning, ledgers, registration, and contract terms warnings.
Customer Reviews
As a full-cycle BIM application pilot project for China Construction Third Engineering Bureau, the Tianjin 117 project successfully integrates BIM technology with project management. It provides vital data support for management and decision-making, laying a strong foundation for the future development of BIM within the Bureau.
Must log in before commenting!
Sign Up