Design method of seismic mitigation and isolation overhead corridor structure in high-intensity and high-wind-pressure area

Abstract

The invention discloses a design method of a seismic mitigation and isolation overhead corridor structure in a high-intensity and high-wind-pressure area, and relates to the field of design of seismic mitigation and isolation overhead corridor structures. According to the design of the overhead corridor structure located in the high-intensity and high-wind-pressure area, the bearing capacity limit state and the normal use limit state need to be guaranteed at the same time, a seismic isolation layer is formed between a corridor and the single buildings through a seismic isolation support due to the fact that the natural vibration periods of connected single buildings on the two sides are usually different, and the horizontal force of interaction can be greatly reduced; the deformation is inhibited through a damping device, so that a better structural design scheme is achieved. Based on a standard design spectrum principle, the invention provides the design method for the seismic mitigation and isolation overhead corridor suitable for the high-intensity and high-wind-pressure area aiming at the conditions that the lower part of the seismic isolation layer is a building structure and the mass of an upper structure of the seismic isolation layer is smaller than that of a lower structure. According to the design method of the seismic mitigation and isolation overhead corridor structure in the high-intensity and high-wind-pressure area, excitation at a corridor support is obtained through single earthquake response, and a horizontal earthquake design spectrum for designing the upper structure of the corridor seismic isolation layer is obtained through envelope regression.

Description

technical field [0001] The invention relates to the design of an overhead corridor structure for shock absorption and isolation, and specifically discloses a design method for an overhead corridor structure for shock absorption and isolation in areas with high intensity and high wind pressure. Background technique [0002] As the carrier connecting the building structures, the overhead corridor can not only realize the functional requirements, but also ensure the beautiful appearance of the building. When designing the overhead corridor structure, on the one hand, it must ensure that it can bear the load itself, and on the other hand, it must also consider the force transmission between the corridor and the connected monomers. As a connecting body, the overhead corridor and the connected monomers form a conjoined structure. There are usually two types of connection between the linker and the monomer: strong connection and weak connection. When the connection is strong, the...

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Problems solved by technology

The overhead corridor structure that uses seismic isolation bearings to form the seismic isolation layer, because the corridor structure itself has a large span and low mass, it is unreasonable to refer to the conventional seismic isolation structure and use the shock absorption coefficient to design

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