| Summary: | 碩士 === 中國科技大學 === 建築研究所 === 96 === Applying energy dissipation systems to strengthening building seismic resistant ability has already become the trend of the future. Viewing upon the relative research paper manifestation implementing of velocity dependent fluid viscous energy dissipation devices in the buildings, it’s seismic response control effect are obvious for displacements and acceleration response, but the effect usually be restraint by the building interior space layout and facade... etc. There are a lot of various implementation types such as: the diagonal bracing, the π-shape bracing, the arch bracing, the under window sill bracing and the double K-shape bracing. The increase rate effect of implementation types of devices is the most important problem in this paper.
In this paper, we select the velocity dependent fluid viscous energy dissipation devices under total damping ratio 20% condition, which implemented with five implementation types on three stories RC building, seven stories RC building and fourteen stories RC building cases. Using ETABS program to analysis the fundamental vibrating period, shear force, displacement, drift angle, damping force of each story, and the acceleration response of roof floor. Also applying the nonlinear static pushover analysis method to assessment building seismic resistant ability, and give something back to the reference when selecting the energy dissipation system implementation types.
Through the seismic response analysis and pushover analysis result identification, seismic resistant ability of three stories RC building can get the best increase rate effect in seismic response control and seismic resistant ability by implemented with energy dissipation devices; In the increase rate effect of the seismic response control, the diagonal bracing, the π-shape bracing and the double K-shape bracing is more obvious under their sequence. In the increase rate effect of the seismic resistant ability, the π-shape bracing, the double K-shape bracing and the diagonal bracing is more obvious under their sequence; If take effect as the main need condition, that can chooses above-mentioned three kinds of implementation types. If the mainly condition of requirement is builds form of space, or the function of concealment etc. That we can choose the implementation types for the under window sill type and the arch type, but we must be consider that promoting the energy dissipation systems effect for needed.
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