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논문 기본 정보

자료유형
학술저널
저자정보
Rahgozar, Reza (Department of Civil Engineering, Shahid Bahonar University of Kerman) Ahmadi, Ali Reza (Department of Civil and Mechanical Engineering, International Center for Science and High Technology) Hosseini, Omid (Department of Civil Engineering, Shahid Bahonar University of Kerman) Malekinejad, Mohsen (Department of Civil Engineering, Shahid Bahonar University of Kerman)
저널정보
테크노프레스 Structural engineering and mechanics : An international journal Structural engineering and mechanics : An international journal 제40권 제1호
발행연도
2011.1
수록면
65 - 84 (20page)

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In this paper a simple mathematical model for approximate static analysis of combined system of framed tube, shear core and two outrigger-belt truss structures subjected to lateral loads is presented. In the proposed methodology, framed tube is modeled as a cantilevered beam with a box section and interaction between shear core and outrigger-belt truss system with framed tube is modeled using torsional springs placed at location of outrigger-belt truss; these torsional springs act in a direction opposite to rotation generated by lateral loads. The effect of shear lag on axial deformation in flange is quadratic and in web it is a cubic function of geometry. Here the total energy of the combined system is minimized with respect to lateral deflection and rotation in plane section. Solution of the resulting equilibrium equations yields the unknown coefficients of shear lag along with the stress and displacement distributions. The results of a numerical example, 50 storey building subjected to three different types of lateral loading obtained from SAP2000 are compared to those of the proposed method and the differences are found to be reasonable. The proposed method can be used during the preliminary design stages of a tall building and can provide a better understanding of the effects of various parameters on the overall structural behavior.

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