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The reinforced concrete structure, on which you can see the plan and 3d view above, consists of 2 openings of 6 m and 10 m in the X direction, while it has 2 4 m openings in the Y direction. Earthquake effects will be determined by solving the structure modeled as reinforced concrete moment transferring frame and full rigid diaphragm with dynamic (modal) analysis in accordance with the dynamic eccentricity method and mode combination method. Comparative model and result review with ETABS is below.
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Another point to note is that if the suitability for beams is marked in ideCAD Static, the 'torsional constant' section, which you can see in the following image in the set modifiers section of ETABS , should be intervened. 10 (-6) should be written.
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As a full rigid diaphragm will be used for flooring, membrane entry should be made with ETABS.
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a- For reinforced concrete column
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b- For reinforced concrete beam
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c- For flooring, ideCAD performs static loading over the clean opening. For this reason, the loads written on the ideCAD Static laying menu should be calculated over the clean area and entered by decreasing the ratio between the two areas, as ETABS calculates the full area. In summary, etabs (clear area / full area) * should be loaded.
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In ideCAD Static, two load case analysis type should be selected. In this type, the additional eccentricity effect is solved by the dynamic method. For the dynamic method, ETABS modeling should be searched from etabs sources with the title 'accidental torsion with dynamic procedure'.
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1- Mass source regulation
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a) Structure Weight
Floor based
ideCAD StaticStructural
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ETABS
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Total
ideCAD StaticStructural
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ETABS
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b) Vertical Results
1- Displacement
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