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43 Hilversum RWZI Introduction On the outskirts of Hilversum (NL), an area called “Anna’s Hoeve” is situated next to a protected park “Goois Natuurreservaat”. The municipality of Hilversum has decided to renovate and intensely clean up this area, in order to provide an area suitable for housing and recreation. Pollution The development of this area is very important as it is contaminated to such a high level that soil and water reservoirs (ponds) must be cleaned thoroughly. If not cleaned, the area is a threat to the people that live there as the groundwater will be contaminated as well. Housing projects In the “Anna’s Hoeve” area, several housing projects will be realized in harmony with the existing nature. The housing projects will partly finance the renovation and clean up works for this area. Waste water treatment plant Also in this area an existing waste water treatment plant will be replaced by a new and modern one. This plant is designed in accordance with the latest technology for waste water treatment, so more space for housing is left. Recreation With new sport facilities and places for recreation in a well designed landscape, future residents will find themselves in an agreeable environment. RWZI Hilversum The department for research and projects of Waternet has designed a modern waste water treatment plant. The civil structures of this project are designed by Royal Haskoning and Snelder architects. As a result, a set of 2D contract drawings has been issued for detailing. Assigned by Royal Haskoning, SC Engineering BV and PT Baja Engineering Indonesia have prepared 3D models of the concrete structures and dimension drawings for the construction with Allplan Egineering. The 3D models were made to facilitate 3D calculations with SCIA•ESA PT. Here we followed the comprehensive instructions from the client, so the 3D models of the structures could successively be used in the SCIA•ESA PT software. The waste water treatment, the so called “membrane bioreactorship”, is conducted inside large concrete structures. This complex of structures is placed inside a hill. Only the control tower is exposed. The results of the calculations will be used to automate rebar design with Allplan Engineering again. Waste water treatment plant in Hilversum Assigned by Dutch design office Royal Haskoning, SC Engineering BV and PT Baja Engineering Indonesia have designed 3D models and dimension drawings of a modern waste water treatment plant in Hilversum (NL). The client used the 3D models to prepare structural concrete calculations in 3D with SCIA•ESA PT. The dimension drawings are prepared for construction. After the calculations are finalized the results will be used to automate rebar design with Allplan Engineering.

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