The Design And Analysis Based Energy Dissipation For Short-Piered Shear Wall Structure With High-Level Transfer Floor

With the rapid development of high rise buildings in recent years, in order to meet the functional requirements, the lower part of many high rise buildings is always frame structure so that it can provide large space for commercial purpose, and the upper part is often used as residence or hotels which need relatively small space. Consequently, complex structural forms of high rise structure with high-level transfer floor and short-piered shear wall are proposed. It's obvious that the seismic performance of the frame structure in the lower part is relatively poor. But only through increasing the section areas of the members to resist earthquake action is not yet economical, and the architectural layout of the lower room would be influenced in the mean time.Due to the specialties such as clear mechanism, notable effects of energy dissipation, reliability, stability, economical and reasonable characteristics, advanced technology, and large scale of application, energy dissipation techniques have been successfully applied to the vibration reduction control of many practical engineering structures. But for the high rise buildings with high-level transfer floor, the researches on structural vibration reduction control with energy dissipation devices still remain vacant because the structural forms of high rise building with high-level transfer floor and short-piered shear wall are always complex as well as particular and the mechanical models of new types of dampers are also complex. However, the traditional design and analysis methods based on energy dissipation are not suitable for this type of structures now.This paper primarily focuses on the studies of this type of high rise buildings with energy dissipated devices, especially on the method for the parameters transformation of a new type of damper as well as the analysis and design methods based on energy dissipation and vibration reduction for this new type of structures with dampers. A general equation for transformation of the damped parameters of many energy dissipated dampers is obtained. The results of non-linear dynamic time-history analysis show that dampers installed in high rise building with high-level transfer floor can significantly improve the global structural seismic performances.