77 Category 2: Civil Structures 2 Owner Canton of Geneva Architect SD Ingénierie Généve SA General Contractor Induni - Bosquet - ZM Engineering Office SD Ingénirie Lausanne SA Construction Period 04/1995 - 07/1996 The Lateral west way is a composite (steel-concrete) bridge which carries 2 traffic road lanes over the CFF railway in Lancy, GE, Switzerland. It’s an existing 6-span bridge with a total length of 168 m and a 10.40 to 13.90 m wide concrete slab deck. The pillars are 1.20 m circular concrete columns. We checked the type 2 rare SLS for the bridge to verify the interaction with the new CEVA railway station, which will be connected to the bridge walkway. A 3D modelling of frames and shells elements was carried out in SCIA Engineer. A global model has been built to calculate the strength, stiffness and displacements of the structure. Furthermore, dynamic calculations were made to analyse the seismic behaviour at the interface between both existing and new structures: movement amplitude and frequency. SCIA Engineer proved to be very flexible with input and output data. Maximum displacement amplitude was finely analysed to minimize expansion joint requirements. Lateral West Way Bridge - Lancy / Genève, Switzerland SD Ingénierie Lausanne SA Contact Alessio Salerno Address Place Chauderon 3 1002 Lausanne, Switzerland Website www.sdingenierie.com SD Ingénierie Lausanne SA was founded in 1955 and has about 40 employees. The firm is a diverse engineering, development and management consultancy delivering innovative solutions for public and private clients in Switzerland. Annually we are responsible for more than CHF 1 billion of construction projects. Our structural engineer capabilities cross different sectors: railways, roadways, infrastructures, buildings, hydraulic, environment and sport floors. SD Ingénierie Lausanne SA is engaged in all parts of the design and construction process.
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