This project was a flagship initiative by the Beijing Municipal Government in 2014 and remains the largest hospital construction project currently underway in Beijing. The structure features a concrete frame with shear walls, spanning a total construction area of 350,600 square meters. It consists of 10 separate buildings that integrate multiple functions such as outpatient services, emergency care, rehabilitation, wards, and scientific research facilities.
BIM Application Team
Guanglianda Software Co., Ltd. is the consulting unit responsible for BIM general contracting, providing technical support and services throughout the entire BIM workflow. They assist the project team in implementing BIM processes effectively.
Creating BIM Models for Full Multi-Disciplinary Data Integration
As a critical part of this construction project, rapidly and accurately developing a steel reinforcement BIM model that meets all requirements was a major task. The use of Revit software alone was insufficient for steel reinforcement modeling. Therefore, Guanglianda GGJ software was selected to create the steel bar models, which were then imported into Guanglianda BIM5D software alongside civil engineering and electromechanical models created by other tools. This workflow enabled comprehensive multi-disciplinary data integration.
Comprehensive Pipeline Optimization and Construction Guidance
The pipeline installation in this project is highly complex, demanding detailed pre-construction design to resolve conflicts between original plans and on-site conditions. Traditional biochemical design methods proved inefficient and inadequate for rapid pipeline optimization. Consequently, BIM technology was employed for detailed drawing refinement. After modeling the sample room A-F~A-L/A-2~A-6 on the underground second floor of the A7 building, overlapping pipelines from different disciplines and inefficient space usage were discovered. Through comprehensive optimization, the minimum spacing requirements (including pipeline insulation) dictated by regulations were met, spatial clearance was improved, and costly rework was avoided.
Rapid Secondary Structure Layout Based on BIM Models
Secondary structures play a crucial role in this project. Due to the numerous detailed nodes involved, refined design during construction was challenging, leading to arbitrary material cutting onsite and significant waste. The secondary structure construction began in March 2015. However, by the end of 2014, BIM technicians had already completed the secondary structure model and arranged columns with bricks using BIM tools. This brick arrangement feature was both fast and intuitive, allowing precise calculation of masonry quantities and providing a reliable basis for material procurement. On-site brick arrangements are currently being compared and verified against the BIM model.
Drawing System Management for Quick Retrieval
The project involves a large volume of complex drawings, necessitating systematic organization for efficient access and management. A total of 3,135 approved drawings were received from the owner, with 2,083 entered into the BIM system. These drawings are linked to corresponding BIM models, enabling bidirectional viewing through a search function. For over 170 revised drawings, dynamic tracking of their approval status is maintained within the drawing module. Tasks that previously required 2-3 personnel an hour can now be completed by entering search criteria, greatly accelerating the retrieval process compared to traditional methods.
Engineering Progress Simulation and Analysis
Traditional scheduling methods used in the project made progress analysis labor-intensive, inefficient, and delayed timely understanding and adjustment of the construction schedule. To address this, a BIM system was employed to simulate real-time construction conditions on site, identify potential schedule risks, and provide a visual basis for cost control by tracking the allocation of funds and resources from project start to finish. Daily construction logs linked to planned tasks reflect actual progress through three different start and end times, triggering alerts when necessary. This visual insight is shared in production meetings to facilitate rapid development of corrective plans.
Customer Feedback
Cost Savings: Cost management was a top priority throughout the project. During the detailed design stage, over 50 major clashes were identified before construction began, preventing waste exceeding 1 million yuan. Additionally, refined management in reporting, verification, and material procurement saved nearly another million yuan in material costs.
Talent Development: Over 18 months of BIM implementation and application, more than 100 general contracting personnel received training, resulting in a highly skilled BIM team dedicated to the Tiantan Hospital project. One team member was later transferred to oversee unified BIM management across all projects within the bureau. These BIM professionals are expected to become key drivers for the comprehensive adoption of BIM within general contracting companies.
Award Recognition: The Temple of Heaven Hospital project, implemented progressively using BIM technology, received multiple awards: the 2015 buildingsMART Construction Application Award, first prize in the 2015 China Construction Industry Association BIM Competition, and first prize in the construction category of the 4th “Longtu Cup” in 2015.
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