94 Category 2: Civil Structures 2 Stairs and Bridge “Bierkaai” - Hulst, The Netherlands AP Grontmij Nederland BV Contact Edwin Fraanje Address Segeersingel 6 4337LG Middelburg, The Netherlands Website www.grontmij.com Grontmij provides consultancy, design & engineering and management services in a broad range of market sectors related to the built and natural environment. Within our range of expertise, and with approximately 7,000 professionals around the world, we aim for for European leadership in five Group growth activities: Energy, Highways & Roads, Light Rail, Sustainable Buildings and Water. Our guiding principle is sustainability by design which is a leading value proposition for our customers. Owner Gemeente Hulst Architect Op ten Noort Blijdenstein Archirtecten & Adviseurs General Contractor ARCADIS Nederland BV Engineering Office Grontmij Nederland BV Construction Period 06/2011 - 06/2012 General project data As part of the redevelopment of the city centre of Hulst (Zeeuws Vlaanderen) a design of a concrete bridge with skirts and Spanish stairs was made for a precast concrete supplier. Allplan Engineering The challenging part of modelling the skirt was following the contour of the stairs while securing a correct connection to the bridge. In order to manufacture the skirt, it had to be divided into elements. Another challenge was fitting the steps between the skirts and the masonry quay wall, resulting in unique steps each with a different width and length and with different angled sides. Production Drawings By designing in 3D it was clear from the start that all elements joined nicely. All the elements (bridge girders, approach slab, stair steps, and skirts) were generated into 2D production drawings. By using Allplan, views and sections of the elements could be easily generated from the model and dimensions could be added to more complex parts in order to make the formwork for the prefabrication.
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