2010 Cilt 15 Sayı 1

Permanent URI for this collectionhttps://hdl.handle.net/11452/11622

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    Flexible design for mass housing in Turkey
    (Uludağ Üniversitesi, 2010) Koman, İlkay; Eren, Özlem
    The aim of this study is to develop a decision-making approach in multi-storey housing design that will allow for alterations in the layout of the dwellings at the time of the users’ initial moving in and/or at later periods of the use, in response to new requirements arising from the users’ initial characteristics or any changes in their characteristics in the course of time, and to select the most suitable building plan alternatives for the users. The houses demands of the real user groups with different charactericstics and a variety of lifestyles might usually lead to a conflict between the users and the houses even at the time when they move in. Futhermore, the houses may fall short in meeting demands when the original users move out and other users move in, or as a result of changes that may occur in the family structure, socioeconomic statuts,lifestyle etc. In this study, a multistorey housing system with a reinforced concrete skeleton structure is being proposed which allows the design of floor plans that are variable to accommodate different family structures. In housing blocks built according to this design principle, the users must be able to choose the plan of their flat according to their own needs and desires, accounting for a higher degree of satisfaction with their living space.
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    Stress analysis and expansion of plastic zone composite laminated plates ([00 /-00]2) under transverse loads by means of FEM
    (Uludağ Üniversitesi, 2010) Özben, Tamer; Arslan, Nurettin
    The aim of this work is to predict the expansion of the plastic zone and residual stresses in layers of stainless steel woven fiber-reinforced thermoplastic matrix composite laminated plates ([00 /-00]2) with rectangular hole. The elastic and elastic-plastic stresses are analyzed by using FEM by means of a developed computer program with FORTRAN 90. The laminated plates arranged in ([00 /-00]2) configuration under uniform transverse loading are formed by stacking four composite layers bonded symmetrically or antisymmetrically. Loading is gradually increased from yield point of the plate as 0.0001 Mpa at each load step. The elastic, elastic-plastic and residual stress components and the expansion of the plastic zones are obtained according to the load steps, different orientation angles and rectangular hole dimensions under clamped and simply supported boundary conditions. Results showed that the maximum stress levels and the plastic zones appear the vicinity of the rectangular hole at the upper and lower layers.