129 General information Customer : Bakbel sa, 28 rue Hector Ameye, 7110 Houdeng-Goegnies Architect : sprl Bureau d’Architecture J. Van Haeren, 18 rue Montagne du Parc, 1400 Nivelles General Contractor : Lixon sa, 60 rue des Chantiers, 6030 Marchiennes-au-Pont Total surface : 3010 m² Total steel weight : 163T Project description The project consists in the creation of a manufacture for a company producing fruit jam in an industrial zoning. It is composed of a 2340 m² industrial hall for production and offices on 670 m² and 2 levels. The hall has a length of 58 m and a width of 40 m with a height under ceiling of 6 m and 9 m.The offices annexed to the hall are 6,3 m tall on a surface of 11,7 m x 30,5 m including 2 levels. The entire building (hall and offices) has a steel structure for a total weight of 163T. The steel structure consists in an external framework in which walls and ceilings, made of isolating panels, are included. The hall is closed in his upper part by steel sidings and flexible metal roofing. The roof has to support external loads like snow or wind but also a walkable ceiling hanged to its structure and charged with electromechanical equipment. As a consequence, the loads to take into account are higher than for usual roofs. History of the project Initially, the client didn’t want any column inside the hall. So, we first calculated a hall relying on six rigid frames with span of 40 m spaced of 1 m with quite heavy roof loads. We made a first study with 40 m long trussed beams. We completed the calculations on this basis. After invitation to tender to the contractors, the client considered that the budget was too expensive and requested the architect company in charge of the project to tighten the budget. To reach this goal, the client agreed to implement columns in the hall, dividing the 40 m long span into two spans of 20 m. Consequently, we restarted our calculations on this assumption. Keeping trussed beams wasn’t justified anymore and we thus passed to HEA sections with bulges close to the supports. The new calculations allowed us to make an economy of 40T of steel. At the time of the new orientation taken by the project, the modelling of the structure enabled us to easily recover a good part of the work already carried out without having to start all again. Structural concept Concerning the infrastructure, because of the weak soil quality, the building is based on eighty-five 17m long piles. There is no cellar and the floors are made of a cast in place floating slab. The columns of the steel structure are fixed in the foundation pads and the façades lie on the foundation beams. Concerning the hall, six rigid frames spaced of 11 m compose the principal structure. Two of these frames have a height of 7,3 m, one makes the transition between the low and high part of the hall and the three lasts are 11,3 m tall. The four inside frames have two spans of 20 m each while the lateral ones have regular columns spaced of 5 m each. These principal frames are linked by 11 m-long roof bearers supporting the flexible metal roofing and at which hang the ceiling and the electromechanical equipments. The offices have masonry façades that aren’t bearing but just filling the steel structure. The floors are made of prestressed hollow slab. Modelling and structural calculation A complete 3D model of the steel structure was made with SCIA•ESA PT: • 395 nodes • 376 bars • 46 nodal supports • 8 load cases The actions on the steel structure due to floors, ceilings, wind… were calculated by hand and implemented in the model. The module steel code check was used to optimize the dimensioning of the structure. The connections were also checked with SCIA•ESA PT. The foundations were hand calculated using the forces given by the software. The entire steel structure was built in 10 days. Industrial hall Bakbel The project consists in the creation of a steel construction for a company producing fruit jam in an industrial zoning. It is composed of a 2340 m² industrial hall for production and offices on 670 m² and 2 levels. The entire building (hall and offices) has a steel structure for a total weight of 163T. The steel structure consists of an external framework in which walls and ceilings, made of isolating panels, are included. The hall is closed in his upper part by steel sidings and flexible metal roofing. The roof has to support external loads like snow or wind but also a walkable ceiling hanging to its structure and that is charged with electromechanical equipment. As a consequence, the loads to take into account are higher than for usual roofs. Industrial hall Bakbel
RkJQdWJsaXNoZXIy MTgyMDE=