58 Category 1: Buildings 1 Mottier College - Mont-sur-Lausanne, Switzerland SE Contact Eric Molleyres Address Av. de Tivoli 60 1007 Lausanne, Switzerland Website www.meylaningenieurs.ch Meylan Ingénieurs SA is a company led by Mr. Gregorin & Mr. Molleyres since January 2009. The company was founded in 1979 by Frank Meylan and gained over 35 years of experience in construction industry. The efficient and responsive structure of Meylan Ingénieurs allows us to address any construction project, renovation works as well as special projects, seismic studies and expertise. Our reputation is based on a pragmatic approach, focused on financial control and looking for economical solutions. We are committed to the human values as well as diversity. We develop collaboration with our clients as well as our team members. Meylan ingénieurs SA Owner Commune du Mont-sur-Lausanne Architect Graf & Rouault architectes Sàrl General Contractor Betholet & Mathis SA / ADV Construction SA / Induni SA Engineering Office Meylan ingénieurs SA Construction Period 2012 - 2014 The extension of the Mottier College represents three new buildings in reinforced concrete constructed in phases. Phase 1 includes the first pavilion with special rooms. The central area has two staircases and a large skylight roof. The 2nd phase consists of classrooms, a canteen with a kitchen and a multipurpose space. The 3rd stage contains a gym, staff room and the second half of the classrooms. The facade is made of prefabricated UHPFRC concrete elements. Basements, being underground, are equipped with a waterproof lining. The SCIA Engineer software has allowed us to solve all the difficulties of the three projects using specific modules such as prestresss, document, Soil-in and a BIM building approach. For each step we created several models: • A model for the calculation of the foundation subject to the groundwater pressure studied with the Soilin module. • A model for the 3D analysis of the concrete structure that allows us to consider the two level wall prepared for the cantilever of buildings 2 and 3. • A specific model for the calculation of prestressed supporting beams. • A specific model for the analysis of the behaviour of the central staircase under static load.
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