CN220908938U - Steel stair with hidden TMD vibration damper - Google Patents

Abstract

The utility model discloses a steel stair with a hidden TMD vibration damper, which comprises a bottom sealing plate and a tread plate, wherein tuning mass dampers are arranged on the inner sides of the bottom sealing plate and the tread plate. The utility model relates to the technical field of steel stair design, and aims to solve the problems of vertical and horizontal vibration comfort of a steel spiral stair by matching a tuned mass damper, a box steel beam and a bottom sealing plate, reduce vertical and horizontal peak acceleration of the structure by adopting a mode of adding a TMD vibration damper, control the vibration response of the structure not to exceed a standard allowable range, and simultaneously solve the problem of attractive appearance by adopting a plurality of small TMD vibration dampers embedded in the stair instead of being hung outside the stair.

Description

Steel stair with hidden TMD vibration damper

Technical Field

The utility model relates to the technical field of steel stair design, in particular to a steel stair with a hidden TMD vibration damper.

Background

The steel stair is made of various general steel sectional materials and is adaptive to a main body structure, nodes of each component are connected by bolts, anchors, welding and other methods, the steel spiral stair is attractive in appearance, and the steel stair with the hidden TMD vibration damper is provided for avoiding excessive vibration of the steel stair.

The TMD is a tuned mass damper and consists of a mass block, a spring and a damping system. That is, the vibration frequency is adjusted to be near the frequency of the main structure, so as to change the resonance characteristic of the structure, thereby achieving the vibration reduction effect.

However, compared with the reinforced concrete structure, the steel structure has soft material performance, so that the problem that the vertical and horizontal vibration comfort level of the structure exceeds the standard limit value often occurs.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the steel stair with the hidden TMD vibration damper, which solves the problems that compared with the reinforced concrete structure, the steel structure is softer in material performance and easy to cause that the vertical vibration comfort level of the structure exceeds the standard limit value.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme: the steel stair with the hidden TMD vibration damper comprises a bottom sealing plate and a tread plate, wherein tuning mass dampers are arranged on the inner sides of the bottom sealing plate and the tread plate.

Preferably, part of the tuned mass damper is arranged horizontally.

Preferably, both sides of the tread plate are fixedly connected with box-shaped steel beams, and one side of the box-shaped steel beams is installed with one side of the tuning mass damper.

Preferably, a part of the tuned mass damper is arranged vertically.

Preferably, the top of the bottom sealing plate is fixedly connected with the lower part of the tuning mass damper through a support.

Advantageous effects

The utility model provides a steel stair with a hidden TMD vibration damper. The beneficial effects are as follows: this steel stair with hidden TMD vibration damper is through the cooperation between tuning mass damper, box girder steel and the bottom shrouding, considers the problem of steel spiral stair vertical, horizontal vibration comfort level, adopts the mode of addding TMD vibration damper to reduce structure vertical, horizontal peak acceleration, and its vibration response of control does not surpass the standard and allows the scope, considers pleasing to the eye problem simultaneously, adopts a plurality of small-size TMD vibration damper to inlay inside the stair, but hang outside the stair.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic diagram of another embodiment of the present utility model.

In the figure: 1. step plate 2, tuning mass damper 3, box girder steel, 4, bottom shrouding, 5, support.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Compared with the reinforced concrete structure, the steel structure has soft material performance, so that the problem that the vertical and horizontal vibration comfort level of the structure exceeds the standard limit value often occurs.

In view of the above, a steel stair with a hidden TMD vibration damper is provided, by tuning the cooperation among the mass damper, the box steel beam and the bottom sealing plate, the vertical and horizontal peak acceleration of the structure is reduced by adding the TMD vibration damper in consideration of the problem of the vertical and horizontal vibration comfort of the steel spiral stair, the vibration response of the steel stair is controlled not to exceed the standard allowable range, and a plurality of small TMD vibration dampers are embedded in the stair instead of being hung outside the stair in consideration of the aesthetic problem.

The components in the present case are sequentially connected by a person skilled in the art, and specific connection and operation sequence should be referred to the following working principle, and the detailed connection means thereof are known in the art, and the following working principle and process are mainly described.

Embodiment one: as can be seen from fig. 1-2, a steel stair with a hidden TMD vibration damping device comprises a bottom sealing plate 4 and a tread plate 1, wherein tuning mass dampers 2 are arranged on the inner sides of the bottom sealing plate 4 and the tread plate 1;

In the specific implementation process, it is worth particularly pointing out that the tuned mass damper 2 can consume the external vibration kinetic energy, so that the stability of the steel stair is ensured, and the vibration amplitude is reduced;

Further, the partially tuned mass damper 2 is horizontally arranged;

In the specific implementation, it is worth particularly pointing out that tuning the horizontal arrangement of the mass damper 2 can attenuate vibrations in the horizontal direction;

Furthermore, the two sides of the tread plate 1 are fixedly connected with box steel beams 3, and one side of the box steel beam 3 is installed with one side of the tuned mass damper 2;

In the specific implementation process, it is worth particularly pointing out that the box steel beam 3 and the tuned mass damper 2 can be fixed in a welding mode;

further, the partially tuned mass damper 2 is vertically arranged;

in the specific implementation, it is worth particularly pointing out that the tuning mass damper 2 is arranged horizontally to attenuate vibrations in the vertical direction;

Further, the top of the bottom sealing plate 4 is fixedly connected with the lower part of the tuning mass damper 2 through a support 5;

In the specific implementation process, it is worth particularly pointing out that the support 5 can support the tuned mass damper 2 so that the tuned mass damper 2 is in a horizontal state;

Specifically, considering the problem of the vertical vibration comfort level of the steel spiral stair, the vertical and horizontal peak acceleration of the structure is reduced by adopting a mode of additionally arranging the TMD vibration reduction device, the vibration response of the structure is controlled not to exceed the standard allowable range, and meanwhile, considering the problem of attractive appearance, a plurality of small TMD vibration reduction devices are embedded in the stair instead of being hung outside the stair. It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The statement "comprising" an element limited to … … does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. The utility model provides a steel stair with hidden TMD vibration damper, includes bottom shrouding (4) and tread (1), its characterized in that: the inner sides of the bottom sealing plate (4) and the tread plate (1) are provided with tuned mass dampers (2);

part of the tuning mass damper (2) is horizontally arranged;

The two sides of the tread plate (1) are fixedly connected with box-shaped steel beams (3), and one side of the box-shaped steel beams (3) is installed with one side of the tuning mass damper (2);

part of the tuning mass damper (2) is vertically arranged;

The top of the bottom sealing plate (4) is fixedly connected with the lower part of the tuning mass damper (2) through a support (5).