Roundabout Velmolenweg Uden PT BAJA ENGINEERING INDONESIA H. Samali nr 79 12510 Jakarta Indonesia Tel.: +62-21-7981416 Fax: +62-21-79199940 Contact: M. Hans Grasmayer Email: [email protected] Structural Concrete Engineering & PT Baja Engineering Indonesia are joint venture companies for detailing structural concrete. The company ‘Structural Concrete Engineering’ is based in The Netherlands and is responsible for the acquisition and the projectmanagement. ‘PT Baja Engineering Indonesia’ has production facilities in Indonesia and uses Allplan Engineering software. Structural Concrete Engineering & PT Baja Engineering Indonesia were contracted by Infra Consult & Engineering to execute the detail engineering for the project: Uden Rotonde Velmolenweg. Project: Uden rotonde Velmolenweg Client: Provincie Noord Brabant Contractor: Ballast Nedam Infra Zuid Oost Engineering client: Holland Railconsult Engineering contractor: Infra Consult & Engineering Subcontractor engineering detailing: Structural Concrete Engineering & PT Baja Engineering Indonesia The project comprises the building of two, fairly similar, tunnels for pedestrians with a shell structure in between and a roundabout above the tunnels. The tunnels will be built inside a sheet wall structure to secure the excavation and are provided with underwater concrete at the bottom to secure water pressure during the construction. Structural Concrete Engineering and PT Baja Engineering Indonesia executed the detail engineering that included: 1. 3d survey of contract drawings 2. preparation of dimension drawings 3. preparation of rebar drawings 4. preparation of bending schedules of the rebar Tunnels The length of the two tunnels, running parallel underneath the roundabout is 155 m. Each tunnel is divided into 7 sections, of which 3 parts are closed with a deck structure. At the connection with the shell structure in the middle of the roundabout, the tunnel section has a large opening. From an engineering point of view this is the most interesting part of the tunnel. The shape of the shell, curved in all directions, is connected to an inclined wall structure. The top of the wall structure is also bent, matching the curves of the shell structure. The floor slabs will be cast on top of the under water concrete, they will be attached to the sheet wall structure with welded dowels. The decks of part 3, 4 and 5 are supported by the sheet wall structure. The walls consist of inclined prefab concrete elements that cover the sheet wall structure completely. Rain water and water from leakage is a collected at the water containing structure in part 2 of the west tunnel. The project will be completed in June 2005. Detailing process Structural Concrete Engineering and PT Baja Engineering Indonesia started this job with a 3d check on critical parts of the structure. After the check and approval by our client of our findings, the dimension drawings were prepared. In total 45 A0 size drawings were prepared for 11 tunnel sections and 1 shell structure. After approval by our client of the dimension drawings, the rebar drawings were prepared. Over 375 ton of rebar was designed. Again 45 A0 size drawings were prepared. 50 SCIA User Contest 2005 / Allplan Projects Company Project Roundabout Velmolenweg Uden 1 Categorie
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