Static and dynamic analysis of the three dimensional building systems

Ill ABSTRACT Msc Thesis STATIC AND DYNAMIC ANALYSIS OF THREE DIMENSIONAL BUILDING SYSTEMS Ömer KELESO?LU Fırat University Graduate School of Natural and Applied Sciences Department of Construction Education 1996, Page: A procedure and a computer program are developed for the linear three dimensional structural analysis of multistory frame and shear wall buildings subjected to static or dynamic loading. The building is idealized as an assemblage of vertical independent frame and shear wall systems interconnected by horizontal floor diaphrams which are rigid in their own plane. The frame and shear wall systems must basically be of rectangular geometryQn elevation) with vertical columns(or piers) and horizontal beams(or spandrels), however, with special modeling techniques very complex situations may be considered. A special shear panel element is developed to enable modeling of discontinuous shear walls and shear walls with arbitrary openings. A diagonal bracing element to model braced frames is also presented. The column, shear panel and diagonal formulations include the effects of bending, axial and shear deformations. Bending and shear deformations are also included in the beam formulation, however, the effects of axial deformations are neglected.IV The effect of the finite dimensions of the beam and columns on the stiffness of a frame or shear wall system are automatically included. The buildings may be unsy m metrical and non- rectengular in plan. Torsional behavior and interstory compatibility are accurately in the results. Three indepented vertical and two indepented lateral static load conditions are posible in any one run. These five static load conditions may be combinet in any ratio to each other or to a lateral dynamic earthquake input which may be specified as a time-dependent ground acceleration or as on acceleration response spectrum. Three dimensional mode shapes and frequencies are evaluated. The unique solution procedure used by the program considers the frame and shear wails as substructures, reduced with a modified wave front technique. This method results in a significant reduction in the program data preparation, computational effort and strorage requirements.