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RISS 인기검색어
- 검색키워드
- 저자 : Baris Sayin (검색결과 2 건)
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- 유료
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Geometric and Material Nonlinear Analysis of Three-dimensional Steel Frames
Turgay Cosgun1,Baris Sayin 한국강구조학회 2014 International Journal of Steel Structures Vol.14 No.1
Results obtained through theoretical and empirical studies which examined the nonlinear behaviour of construction membersenabled us to characterize the behaviour of construction systems under external effects more closely. The calculation methodsthat took into consideration the nonlinear behaviour of the construction members and the nonlinear effects of their geometricalvariations had to be developed in order to evaluate these phenomena and to design structures according to their collapse loadprinciple. In the presented study, a computer program was developed for the characterization of structural systems by takinginto consideration the nonlinear conditions of material behaviours under increasing loads and by considering the second-ordereffects. A matrix-replacement method was used as the basis for developing the program, which takes into consideration theeffects of axial forces on the stiffness of the member by using the stability functions and the effects of plastic hinges bysystematically changing the stiffness matrix in each occurrence of the plastic hinges. In the study, based on the results obtainedfrom the examples, which were solved by the developed program, it was identified that the program could yield rapid andreliable results depending on the user-defined values (number of nodes, error limit for the iteration) and it is observed that theresults are consistent with the literature. The obtained results in this study have contributed to capability of converting twodimensional analyses to three-dimensional analysis of stability functions developed.
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A method for the non-linear and failure load analysis of reinforced concrete frames
Turgay Cosgun1,Baris Sayin 사단법인 한국계산역학회 2014 Computers and Concrete, An International Journal Vol.14 No.1
Modern trend in structural design is to use smaller elements in order to ensure several purposes such as economy, functionality and aesthetic in appearance. However, because of decreasing rigidity of the structural elements, the system displacements increases and displacements become an important subject in this kind of structures takes into account both geometrical changes and the carrying capacity of the material after linear-elastic boundary. In this study, a method is proposed to calculate the failure loads and to analyse the reinforced concrete space frame systems. The numerical examples gathered from the literature survey are solved with this method utilising the prepared computer program and the comparable results are presented. The results show that the method is sufficiently accurate.
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