Nemetschek Engineering User Contest 2009 • Category 2: CAE Housing & Buildings 73 2 Emporia Towers, Bratislava which are limiting the stairway area (approximately 5,30 x 2,60 m). All stiffening elements of the building are monolithic structures of the supporting system, i.e. they are designed in longitudinal, as well as in transversal direction; in the ceiling occur plane monolithic wall elements and on the fourth storey we also find supporting columns. Foundations - Material and Loading Data The foundation and the bearing structures were designed acc. to ENV 1993-1-1:1992 Eurocode 3. The design of the device consists of the calculation and evaluation of a number of load cases and their complex combination effect. Besides the dead load (own weight) was considered the live load; for ceilings it is the standardized value 2,50kN/m², for the stairway 3,00kN/ m², for snow loading (area II.) so = 0,70 kN/m2 and for wind loading wo = 0,55 kN/m2 (during erection and on the final building). After that was considered seismicity 7o MSK-64, category “A” and temperature loading (the shell structure received higher temperatures than the column support during the operation). Description of the Static Calculation The static calculation is prepared with the software NEXIS rel. 3.100. The 80 most dangerous combinations were calculated acc. to ENV 1993-1-1:1992 Eurocode 3 with coefficient 1,35 in two basic combinations (bearing capacity and deformations). The model contains 1385 macros in 1D and 2D. Bearing Capacity, Deformations of the Walls and Ceilings The text enclosure shows a bearing capacity of the walls and ceilings in relevant load case combinations (the same in the graphic enclosure). The nodes were selected in all four corners on each floor elevation. The horizontal deformation in x, y direction should not exceed 1/1000 of node elevation above the support (of the structure as whole) acc. to the recommended limit deformations in ENV 1993-1-1:1992 Eurocode 3. The software evaluates extreme deformations in every direction separately (x, y, z) as well as maximum node rotation around the axes x, y, z.
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