Self-resetting concrete column with variable cross-section shear keys and additional replaceable dampers
A technology of concrete columns and shear keys, applied in the direction of columns, pier columns, pillars, etc., can solve problems such as difficult maintenance, achieve the effect of improving seismic performance and easy replacement
Active Publication Date: 2021-10-29
CHONGQING UNIV
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Problems solved by technology
[0004] In view of this, the object of the present invention is to provide a self-resetting concrete column with a variable section shear key and an additional replaceable damper to solve the problem of existing concrete Difficult post-earthquake maintenance of columns
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[0024] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.
[0025] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should...
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The invention relates to a self-resetting concrete column with a variable cross-section shear keys and additional replaceable dampers, and belongs to the technical field of structural engineering earthquake resistance. The self-resetting concrete column comprises an upper column, a lower column, a cross-shaped component, the variable cross-section shear keys, springs and the dampers, wherein the upper end of the cross-shaped component is fixedly connected to the end plate of the upper column, the lower end of the cross-shaped component is movably contacted to the end plate of the lower column, the cross-shaped component and the upper column are lifted together, four quadrant areas formed by the cross-shaped component are each internally provided with one variable cross-section shear key, gaps are reserved between the peripheries of the variable cross-section shear keys and the cross-shaped component, it is avoided that lifting of the cross-shaped component is affected, the springs are connected between the upper ends of the variable cross-section shear keys and the end plate of the upper column, the lower ends of the variable cross-section shear keys are fixedly connected to the end plate of the lower column, self-resetting is achieved through the springs, four dampers are arranged around the periphery of the cross-shaped component, and the upper ends and the lower ends of the dampers are detachably connected to the end plates of the upper column and the lower column correspondingly. The dampers can dissipate earthquake energy in a concentrated mode, reduces post-earthquake damage of a main body structure, and is easy to replace and maintain after an earthquake.
Description
technical field [0001] The invention belongs to the field of anti-seismic technology of structural engineering, and relates to a self-resetting concrete column with a variable cross-section shear key and an additional replaceable damper. Background technique [0002] At present, performance-based seismic design has become the mainstream of seismic design. How to make the whole building, even the whole city and even the whole society recover after an earthquake has attracted close attention and extensive discussions in the field of earthquake engineering in recent years. How to design a structure that does not cause damage or can only be quickly repaired in an earthquake will become one of the important research directions for sustainable development of engineering earthquake resistance. By "weakening" certain parts of the structural system and realizing concentrated energy dissipation in these parts, the damage of the structure under the action of the earthquake can be effec...
Claims
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IPC IPC(8): E04H9/02E04B1/98E04C3/34
CPCE04H9/0237E04H9/025E04B1/98E04C3/34
Inventor 白久林贺晶陈辉明金双双杨经纬胡少伟
Owner CHONGQING UNIV