| dc.description.abstract | The recent advent of performance based design has brought the nonlinear static pushover analysis procedure to the forefront. Pushover analysis is a static, nonlinear procedure in which the magnitude of the structural loading is incrementally increased in accordance with a certain predefined pattern. With the increase in the magnitude of the loading, weak links and failure modes of the structure are found. Due to its simplicity, the structural engineering profession has been using the nonlinear static procedure (NSP) or pushover analysis. Modeling for such analysis requires the determination of the nonlinear properties of each component in the structure, quantified by strength and deformation capacities, which depend on the modeling assumptions. SAP2000, a state of the art, general purpose, three-dimensional structural analysis program, is used as a tool for performing the pushover. Pushover analysis of SAP2000 is carried out for either user-defined nonlinear hinge properties or default-hinge properties, available in the program based on the ATC-40 and FEMA-356 guideline. While such documents provide the hinge properties for several range of detailing, SAP2000 program may implement averaged values. The user needs to be careful; the misuse of default-hinge properties may lead to unreasonable results for existing structures. This paper studies the possible differences in the results of pushover analysis due to default and user-defined plastic hinge properties. The method for calculate user-defined plastic hinge properties of component, frame, brick wall, RC wall, were also proposed. In order to verify present method, user-defined plastic hinge properties of 3-D RC building, compared with pushover analysis and time history method were carried out. | en_US |