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The earthquake resistant concrete frame building – with special focus on beams and columns - Dissertation Example
Author : tpollich
Engineering and Construction
Pages 18 (4518 words)
In this paper we are going to compare two codes on the basis designing the earthquake resistance concrete frame building. The comparison focuses around beam and columns of the building. Two codes are compared here. First is Iranian concrete code and the second one is Eurocode…
According to the research findings it can therefore be said that special condition should be followed when the beam elements are being designed such as the difference between rectangular beam and flanged beam should be known. Flanged beams are generally the rectangular beams which work with slabs and the part of slab element acts with the top part of the beam. If it is below the flange, then the section needs to be designed by taking into consideration the specific area of concrete section for compression part. The most crucial part in design is the design for flexure and shear. The flexure design has to be repeated twice, one for support condition and another for span condition. Shear force which acts to the beam can have a substantial deformation. This deformation occurs particularly to the both ends of the beam. The ultimate shear capacity Vn of a section of a beam equals the sum of the nominal shear strength of the concrete Vc and the nominal shear strength provided by the reinforcement Vs; that is, ΦVn = Vc = Vs. The factored shear force Vu on a section should not exceed where Φ = capacity reduction factor (0.85 for shear and torsion). Except for brackets and other short cantilevers, the section for maximum shear may be taken at a distance equal to d from the face of the support. The shear Vc carried by the concrete alone should not exceed 2√fc_ bwd is the width of the beam web and d, the depth of the centroid of reinforcement. ...
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