Jumeirah Gate Tower
A Case Study on How we supported Facade Sub Contractor in utilizing BIM in Jumeirah Gate Project.
Dubai, UAE
Key Information
Client
Arthur Best Consulting Engineers
Built-up Area
2,42,000 Sq. m
Facade Sub Contractor
Zebian Aluminium and Glass Industries LLC
Project Phase
Construction
About
Jumeirah Living Marina Gate is one of the few exclusive branded residences in Dubai Marina, comprising a 77-storey tower that serves both as a residential and hotel apartment building.
The project is developed by Mirage Leisure and Development Inc., with architectural design by Killa Design and façade engineering by Koltay Facades. Multiplex serves as the main contractor for the project.
Project Scope
We were commissioned by Arthur Best Consulting Engineers, acting on behalf of Zebian Industries, to deliver the following scope of BIM services
- Prepare BIM Execution Plan (BEP) for the Project.
- Developed LOD 400 BIM models for Unitized & Stick Curtain Wall System.
- Developed LOD 400 BIM models for Balcony & Railings.
- Coordination with Other Trades.
- Participation in Weekly Coordination Meetings.
Project Snapshots
A glimpse into the coordinated BIM models for Stick Curtain Wall and Unitized Curtain Wall System.
Level 63
Soffit
Challenges
The shape of the building being a challenge was also one of the key projects we were into. The complicated shape brought the difficulties to model the façade elements to such a level of detail as required.
We made various effort to make its exterior curvature to be properly aligned with the IFC drawing by applying pieces of arc wall with different radial curvature joined with one another to get desired shape of building. Since the shape was neither elliptical nor any regular shape, the challenges and problems were plenty to make us think in twisted manner to achieve goal.
Another core challenge was the inability of Revit to develop a curtain wall model to the level of detail of 400 as required by the client.
The possible modelling solution we had was brought to the client attention in the initial modelling phase and necessary approvals were taken for usage of generic models wherever required. This has brought us the benefit of lesser comments on the model submitted. For example there is no solution to model a sealant in Revit, so we used generic model to show the sealants.
Another challenge was to keep the model file below 250 MB as required by the BIM Standards provided. The file was split into pieces to achieve this. The file splitting was done carefully to avoid problems while modelling and linking. There were approximately 250 files for the entire project.
L63 Soffit was a 3-Dimensional curvature with much complicity in shape to be modelled with proper detail connection to EVS steel and rest of structural components, as the soffit was hanging at Level 63 between two towers.
The shape of soffit was properly studied and information were gathered regarding the best possible method that can applied. Since model with massing was not a wise option as the client required a detail model we come with the conclusion in using extrusion and voids for modelling. After applying various shape and cutting it with voids at required areas and with proper engineering skills we became successful in achieving the shape.
Value Addition
With our facade BIM services, we help the contractor in delivering a clash free model, coordinated with every trade to reduce rework on site. There were numerous cases in which structural components were shifted to avoid clashing with facade components. Proper RFI’s were raised & discussions were made in each case.
An example case in which the column and beam were chamfered and extended sizes were reduced to avoid clashes. This was much appreciated as it saves huge effort and money.
