• Shenzhen Municipal Design & Research Institute Co., Ltd.

    BIM Design and Application in the Rapid Transformation Project of 4th Ring Road and Dahe Road in Zhengzhou

    Zhengzhou, Henan, China

Project Summary

Project

The design for the fourth-ring superhighway project forms a loop around four other roads in the city of Zhengzhou in Henan, China. The expressway will be the primary thoroughfare that brings commuters from suburban areas into the center of downtown. The CNY 40 billion project will include two roads – one that is ground-level at a length of 93 kilometers and an elevated bridge roadway at a length of 63.6 kilometers, with a maximum speed of 80 kilometers an hour. Plans for the new extension include 27 interchanges, 21 bridges, and 34 rail nodes. The project team faced a short design timeline and needed to find a way to collaboratively work across a multidiscipline project team. To overcome these challenges and stay on schedule, Shenzhen Municipal Design & Research opted to implement 3D modeling technology rather than traditional 2D technology commonly used on road projects in China.  

Solution

Shenzhen Municipal Design & Research established a collaborative design platform to communicate with other design disciplines and stakeholders. The open environment enabled the team to use multilevel document architecture, as well as store and view project data to efficiently carry out the design. The collaborative work environment also allowed the team to work in real time with other designers in different locations. Moreover, the team used 3D modeling software to create a reality model with a 1-to-500 map accuracy covering a 120-kilometer-square area. The team then created a 3D model of the entire project to accurately reflect site conditions. The software also enabled the team to create a parametric member library for over 10 road model types, as well as overcome obstacles by modeling the variable cross-section bridges. Furthermore, the 3D modeling software helped the team create parametric units and complete hundreds of customized piers with varying height and sloping ratios.

Outcome

Deploying 3D modeling technology rather than a traditional 2D approach allowed Shenzhen Municipal Design & Research detect and resolve more than 100 clashes to enable a comprehensive network design. The software also facilitated a building information modeling approach for designing the 95-kilometer ground-level roads and 67-kilometer elevated bridges along the route. In addition, the team developed a BIM methodology to design prefabricated bridges, variable cross-section roads, and topside structures and substructures, as well as accumulate 30 standard cross-section templates. Moreover, the BIM methodology and workflows helped accurately manage about 50,000 prefabricated segments and reduce cost and waste by 40%.

Software

ProjectWise enabled seamless collaboration among the multidiscipline team to view and share files, which improved efficiency. ContextCapture was used to create the reality mesh to carry out the design in line with site conditions. OpenRoads Designer was used to build a parametric library of road sections for more than 10 road model types within a 95-kilometer route along the highway. OpenBridge Modeler helped overcome difficulties when modeling the variable cross-section bridges. MicroStation was used to create parametric units and customized piers with varying height and sloping ratios while Navigator helped the team detect and resolve more than 100 clashes. ProStructures was used to design the complex bridge joints with the 3D model, enabling the team to visualize construction progress and accurately arrange the reinforcing steel bars for the elevated bridges.

Project Playbook: ContextCapture, gINT, LumenRT, MicroStation, Navigator, OpenBridge, OpenRoads, ProjectWise, ProStructures

Outcome/Facts
  • The CNY 40 billion fourth-ring road project includes a ground-level road of 93 kilometers long and an elevated bridge expressway of 63.6 kilometers long, with a maximum speed of 80 kilometers per hour.
  • Shenzhen Municipal Design & Research established a collaborative design platform to communicate with other design disciplines and stakeholders.
  • BIM workflows enabled the team to accurately manage about 50,000 prefabricated segments and reduce cost and waste by 40%.
Quote:
  • “Using 3D modeling applications instead of typical 2D design drawings helped us to streamline workflows and meet the timeline, while working effectively with other disciplines.”

    Jian Lü BIM Project Manager Shenzhen Municipal Design & Research Co., Ltd.