The proposed method, as an integrated analysis and design method, can directly address the earthquake design strategy intended by the engineer, such as limited ductility of member and the concept of strong column - weak beam. Design examples using the proposed method were presented to verify its advantages. In the present study, the procedure of the proposed design method was established, and a computer program incorporating the proposed method was developed. At the same time, the proposed design method can accurately estimate the inelastic strength and ductility demands of the structural members through iterative calculations. Since basically the proposed design method uses linear analysis, it is convenient and stable in numerical analysis. These design guidelines can then be incorporated into the appropriate building codes.Ī new earthquake design method performing iterative calculations with secant stiffness was developed. A major objective of the test program is to develop design guidelines for precast/prestressed concrete seismic systems that are appropriate for use in various seismic zones. Pretopped double tees are used on three floors, while the other two floors are constructed using topped hollow-core slabs. The test building incorporates four different seismic frame systems in one direction, and a jointed shear wall system in the orthogonal direction.
The buildings were designed using the direct displacement based approach, which is able to take advantage of the unique properties of precast/prestressed concrete using dry jointed construction. This paper describes the prototype buildings used for design and the structural features of the test building. At the culmination of the PRESSS (Precast Seismic Structural Systems) research program, a 60 percent scale five-story precast/prestressed concrete building will be tested under simulated seismic loading.
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