Construction Construction Third Engineering Bureau Co., Ltd.

Corporate name China Construction Third BIM Technologies Engineering Bureau Co., Ltd. Project address Applied in Construction China， Application software Phase of China Zun Tower Autodesk® Revit® Autodesk® Navisworks® Autodesk® Recap™ Autodesk® BIM 360™

As General Contractor of China Zun Tower, we focus on technical innovation. We have applied 20+ new technologies on this project, among which BIM provides us evolutional experience. We deeply work with designers and subcontractors based on BIM models. With BIM's large project with the total investment of advantage of information Company profile China State Construction Engineering 3.5 billion USD. It is located on the central integration, we significantly Corporation Ltd. (CSCEC), one of the axis of Beijing’s CBD and covers an increase efficiency and world's Top 500 enterprises, is the top- area of 1.15 hectares. The construction construction quality. And ranking Chinese company on the chart area totals 437,000 square meters, with it also improves the team's of investment and construction business. 350,000 square meters/108 floors on the ground, 87,000 square meters/7 floors capability to handle a super As an important subsidiary of CSCEC, the Wuhan-based China Construction Third underground. After completion, the complicated project like Engineering Bureau Co., Ltd. (CCTEB) 528m building will be the tallest in Beijing this. is a leading SOE of construction and and become a new landmark of the installation. Super Project Management city skyline. The construction was started — Xu Lishan Company affiliated to CCTEB offers in July 2013 and will be completed in Executive Chief Engineer & a professional platform for general October 2018. Construction Director of China Zun contracting and management of high- Tower The owner of this project is China China Construction Third end projects. The company was set up International Trust and Investment Engineering Bureau Co., Ltd to consolidate competitive strength in high-end construction projects, as well Corporation (CITIC) Heye Investment Co. as to promote the management mode Ltd., a primary subsidiary of CITIC Group. of general contracting. According to Beijing Institute of Architecture Design mandate by the parent company, it (BIAD) works as the general designer. BIAD mainly engages in general contracting, works with TFP Design Firm for conceptual while expanding presence in PPP and design; KPF helps on this project as EPC. architectural advisor; Arup is structural advisor and PB is electromechanical Project Overview advisor. The combo of China State China Zun Tower is a super-tall and super- Construction Engineering Corporation Ltd. (CSCEC) and China Construction Third

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Architecture, structure - architecture, structure & MEP detailing BIM model Provided by General and MEP models align with - decoration & interior design Designer (BIAD) for design construction documents - curtain wall design and other specialization design - 3D scanning data review

Steel structure BIM model - model & information integration - collision detection - 4D construction simulation Structure detailing BIM model - schedule planning - 3D scanning data review Provided by General BIM model for BIM model for GC Contractor (CSCEC & management construction CCTEB) - On-site construction inspection MEP detailing BIM model (MEP contractor)

Curtain wall BIM model (curtain wall subcontractor) - Fine decoration complex parts design & fabrication

Decoration & interior detailing BIM model (decoration subcontractor) BIM model for - Generate BIM models for decoration Operation & design Other specialized BIM models Maintenance (special subcontractors)

Engineering Bureau Co., Ltd. (CCTEB) works site. The external wall of the building is to simulate complex steel structure as the general contractor. extremely close to the property line; connections for optimization. Mobile China Zun Tower is a role • Holds the world's highest steel plate devices and 3D scanning are used to model of BIM application shearwall structure which is over 227m; review and guide construction work on site based on the optimized BIM model. in mega-size and complex and the largest concrete filled multi- cavity steel mega-column with cross- projects. BIM technology section area over 64m2. • The contractors introduce BIM for pre- helps the over fabrication and off-site digital 500m to be built within 62 • Has super mass concrete slab with processing of steel bars, curtain months. The construction thickness of 6.5m, area of 1,1478m2 and wall plates and electromechanical speed is 1.4 times of similar total concrete amount of 6,2000m3. It is pipelines. This reduces the demand for construction space, and enables projects. the first time that HRB500 40 mm rebar is used in piled raft foundation. The pit industrialized construction. is nearly 40 meters deep. China Zun Tower is China's first intelligent • The contractors use Revit to design construction project, which is fully • Has unique styling, complicated and manufacture steel bracket and use empowered by BIM technology to structure and various systems. Detailing Navisworks to simulate/optimize the synchronize design management, and to for and coordinating among different process of concrete pouring. Finally, guide construction. BIM technologies are parts are difficult and demanding. it took 93 hours to complete concrete efficiently integrated to ensure cross- pouring of 5,6000m3, with 20% of time sectoral alignment and collaboration, life- The general contractor and subcontractors saving over traditional pump solution. cycle simulation and life-cycle application. apply BIM technology to address the difficulties. BIM application overview The project owner CITIC Heye Investment Project challenges • BIM is adopted in design detailing of advocates and leads life-cycle BIM • The world’s first skyscraper that stands architecture, structure and MEP parts to application, which has been a mandate for on an area of 8 degree seismic develop and verify original designs. BIM all designers and contractors. BIM data fortification intensity (China standard detailing greatly improves efficiency are passed on from design to construction, for earthquake) and feasibility. Over 6,200 defects operation and maintenance. After thorough have been detected and fixed in time, studies and discussions by all parties • Has the shortest construction period cutting the load of on-site changes and involved, The Guide to BIM Execution in for a skyscraper over 500m, which is modifications. China Zun Tower was compiled, which only 62 months. set action guideline and standard for all parties during the project life cycle. With • Is located at the heart of CBD in Beijing, • To satisfy construction quality progress of the project, experience is leaving little space for construction requirements, the contractors use BIM

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accumulated, enabling the Guide to be prefabrication of super volume structure, improved and scaled up. and 3D laser scanning. The BIM team for construction phase Over 90% of model clashes has over 100 staff from 28 departments can be addressed with BIM covering 9 supporting functions of general coordination. Rework and contracting. BIM Management Department is the coordinator among internal modification drop by 65% functions, and the interface with project compared with traditional owner and designers for BIM application. practice.

To facilitate model interoperability BIM Design Detailing for Coordination and data exchange, BIM Management and construction guide Department of the General Contractor Detailing design aims at optimizing the made the following requirements for the functions and quality of the tower. All model format to be submitted: these measures help improve building quality and create additional value over • Deliverable Models: Models with one hundred million RMB. original format, link models in Autodesk Revit format, and Autodesk Navisworks- The Guide to BIM Execution in China Zun bound browsing models; Tower was compiled to specify LOD of detailing design and standards for each • Editable models: based on Autodesk technical domain. In the detailing process, Revit platform to aggregate and the specialized teams fully integrated 3D integrate data of different formats; models with 2D drawings, to develop high- quality detailed design files. Up to date, • Browsing models: based on Autodesk the project has generated over 100,000 Navisworks platform to integrate data detailed design drawings. Precision of of different formats; the steel structure, fine decoration, and curtain wall models has exceeded LOD400. • With consent of the project owner, models of other data format can be Some numbers up to the end of 2016. provided in original format, together with the Autodesk Navisworks models. 652: A total of 652 detailing design models were developed in all specialized areas, On top of common BIM applications, Among them, decorative models take the the team has innovated with super- largest share. precision detailing design, simulation of most challenging construction tasks,

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800: Over 800 Revit component families pattern that features the leadership of and improves efficiency. dedicated to this project were created by general contractors, participation of all 10 professional subcontractors, covering parties, and continuous updating. Software On-site inspection with specialized domains of electro-mechanics, automatic calculation was combined with BIM data presented on Ipad fine decoration, curtain wall, elevator and manual review by engineers to facilitate window cleaning equipment. coordination. Then clashes that might simplifies the difficulty of impact operation or maintenance were construction management, 806: 806 rounds of construction drawing saved with viewpoints in a report for reduce errors, saves times reviews have been done, including steel correction. and improves efficiency structure, electro-mechanics, decoration, curtain wall and lift, fire-protection and It is estimated that over 90% of model BIM Construction Simulation other domains. clashes can be addressed after several BIM teams are fully engaged in the rounds of coordination. Rework and development of all major construction 6200: With BIM tools, the project has modification drop by 65% compared with plans. The plans are simulated with run 6-7 times more multi-discipline traditional practice, which helps save time Autodesk Navisworks to highlight clashes coordination review. Over 5000 issues and cost in construction. among space, progress and resources. were found in design phase and over 6200 By doing so, the teams can optimize were found in construction. During the construction, BIM managers construction arrangements and processes organize regular on-site inspection to to ensure smooth execution. For the parts check compliance with BIM models using 7,200: By shortening window fan coils, with complex nodes that need cross- Autodesk BIM 360 Glue on Ipad. BIM data 4,200 m2 was saved for other purpose. functional support, the teams would is used at certain level in construction An additional 3,000 m2 was spared by predefine the nodes in a BIM setting and tasks such as tour-inspection, technical optimizing layout of the standpipes in the assist in analysis. disclosure, QA/QC, etc. In case of tube-wells beside the giant pillars. In total, inconsistency, the parties would draft usable area was enlarged by 7,200 m2. Since the construction started, the team a report for revision and execution. simulated over 10 large-scale plans. Greater consistency between models and With high-precision design detailing The outcome is a bunch of video files construction enhances data quality for models, general contractors effectively covering construction methods, processes, intelligent operation and maintenance. It mobilize subcontractors and consultants, equipment specification including simplifies the difficulty of construction creating a comprehensive coordination management, reduce errors, saves times

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irregularly-shaped parts for fine decoration in lobby and premium offices. The team uses Autodesk Dynamo for complex parts, and import parameters to CNC for processing. The finished parts are assembled in the factory space before being installed on site. This ensures sound progress despite limited space on site and the large number of pipeline and wires to be routed

3D laser scanning The BIM teams use high-precision 3D laser scanners to scan each floor after its completion. On each floor, there are up to 25 scanning stations, which ensures that scanning results are accurate, comprehensive and blind-spot-free. Data granularity is enhanced to 2mm.

3D scanning data is imported in Autodesk • design of cross-piping and chute in It gives an intuitive depiction of work ReCap to generate as-build foundation structure progress and key roadmap. BIM models for interior • large-volume concrete pouring decoration Prefabrication and digital processing • Installation of mega-columns China Zun Tower project actively The project generates massive point cloud promotes prefabrication for energy data. Information and data transmission • basement composite structure construction efficiency and green construction. is a formidable challenge. It is the first Scale use of prefabricated parts saves time in China that a project uses Jetstream • installation and jacking of special energy, cost and space. At the same data system, which stores all the data in equipment integration platform time, construction quality and speed a central server. Teams get remote access are greatly improved. It is estimated to the data by installing Autodesk Revit • construction steps of frame-core steel that construction wastes plunge by 90%, or Autodesk Navisworks with plug-ins on plate shear wall while water and electricity consumed client side. This enables full participation in construction are only 20% of those in in 3D scanning. • selection and transportation of large conventional projects. Construction is mechanical and electrical equipment well organized despite the little space 3D scanning data keep a reliable record available on site for construction. of the construction site. The project • delivery and installation of curtain wall units quality management team compares the For example: ‘real’ point cloud data with ‘virtual’ • tower crown installation and tower crane • Prefabricated vertical pipeline BIM models and reports on deviation. It demolition. technology is employed from Floor 7 helps to identify key components with to Floor 102. 222 sets of prefabricated quality defects and issues, which is critical It represents an innovative approach pipelines that designed and tagged in to make correction in time and improve to select from plan options and guides Autodesk Revit are installed, including project quality. construction. air conditioning water system and fire- fighting system. Work load of on-site 3D scanning data is imported in The working schedules is imported into welding is cut by 30%, plus substantial Autodesk ReCap to generate as-build Autodesk Navisworks to develop an saving in labor. BIM models for interior decoration animation where actual progress and design and construction guide. It helps automatically-generated schedule are • Decoration Team also prefabricate the subcontractors to re-optimize their shown in different colors for comparison.

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work under the most updated and real Conclusion conditions, and ensure the completion of The construction team of China Zun Tower project models in as-built status. is committed to building the world's first It is also an innovative approach to BIM- super-high skyscraper with life-cycle BIM enabled maintenance. Before construction management. As a key of construction is completed, mechanical and electrical process, BIM application expands and pipelines in the ceiling and installation in deepens from design phase to construction equipment rooms are scanned, to reserve phase. More importantly, BIM has been graphic data and location information for integrated in design detailing, on-site operation and maintenance. management and green construction, empowering full participation and trans- disciplinary coordination. China Zun Tower is a role model of BIM application in mega- size and complex projects and will become a benchmark of BIM in the AEC sector.

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