CN221298230U - Groove-shaped bracket - Google Patents

Abstract

The utility model relates to a groove-shaped bracket, which comprises a bottom plate and webs distributed on two sides of the bottom plate, wherein when the groove-shaped bracket is matched with a steel beam, the steel beam is placed on the groove-shaped bracket, the webs of the groove-shaped bracket are distributed on two sides of the steel beam in an upturned manner, and the upturned height of the webs is not higher than the beam height of the steel beam; and an inward extending sub-beam is arranged on the inner side of the groove-shaped bracket to balance the bending moment of the inward extending sub-beam, and a beam bottom haunching is correspondingly arranged when the inward extending sub-beam cannot envelop the bottom of the bracket. Compared with the prior art, the utility model has the advantages of reliable stress, wide application range and obvious effect of saving the structure height.

Description

Groove-shaped bracket

Technical Field

The utility model relates to the technical field of building structures, in particular to a groove-shaped bracket.

Background

The roof of a large span corridor or open space between the monomers is usually in the form of steel beams or steel trusses plus composite floor slabs for reducing the dead weight. For the purpose of releasing temperature stresses and reducing strong ties between the cells, the steel beams are usually rested on supports from which the cells extend, in the form of hinges or slides. The bracket is a support under the beam and acts to distribute the forces of the beam mount to the underlying load. The traditional concrete bracket is similar to a cantilever beam with a variable cross section and is positioned below the steel beam, and when the steel beam is stressed greatly, the bracket is also larger, so that the clear height space and the attractiveness of the building are affected to a certain extent.

Chinese patent application CN201720338867.7 discloses a steel corbel assembly for beam-column connection comprising: the two hoops encircling the concrete column are oppositely arranged one above the other, the two hoops are mutually connected through the connecting piece, steel corbels are arranged on the side face of the concrete column and fixedly connected to the hoops or/and the connecting plate, force is transmitted through mechanical connection or extrusion, the advantage of good compression resistance of the concrete is fully exerted, the top face of each steel corbel can be fixedly connected with the end part of each steel girder, secondary damage caused by sliding of the steel girders from the steel corbels under a large earthquake is avoided, and the steel column is safer and more reliable, but the utility model does not solve the problem that the corbels occupy building space below the steel girders.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide the groove-shaped bracket which can meet the stress requirement and can be hidden in the structural space as far as possible.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a groove-shaped bracket, which comprises a bottom plate and webs distributed on two sides of the bottom plate, wherein when the groove-shaped bracket is matched with a steel beam, the steel beam is placed on the groove-shaped bracket, the webs of the groove-shaped bracket are distributed on two sides of the steel beam in an upturned manner, and the upturned height of the webs is not higher than the beam height of the steel beam.

Further, the section of the steel beam is I-shaped.

Further, the steel beam (2) is designed as an end variable cross section.

Further, the groove-shaped bracket is arranged on a concrete beam, a concrete wall or a concrete column.

Further, a beam lower support is arranged between the steel beam and the groove-shaped bracket, and the beam lower support is a fixedly connected support, a hinged support or a sliding support.

Further, when the beam lower support is a sliding support, an anti-collision plate is arranged on the concrete beam.

Further, when the beam lower support is a sliding support, a limiting device is arranged and comprises a limiting clamping strip and a limiting bolt, and the limiting device is welded on the steel beam.

Further, when the beam lower support is a sliding support, the size of the channel bracket depends on the sliding displacement amount of the steel beam, and the sliding displacement amount includes the transverse displacement, the longitudinal extension displacement and the longitudinal extension displacement of the steel beam.

Further, corresponding inward extending sub beams are arranged on the side walls of the groove-shaped brackets.

Further, when the inner extension beam cannot envelop the bottom of the groove-shaped bracket, a beam bottom haunching is arranged between the inner extension beam and the groove-shaped bracket.

Compared with the prior art, the utility model has the following advantages:

1. According to the utility model, the webs of the groove-shaped brackets are upwards turned and distributed on two sides of the steel beam, and the upwards turned height is not higher than the beam height of the steel beam, so that on one hand, the vertical rigidity of the brackets is improved by using the side walls on the two sides, and the bending resistance of the brackets can be enhanced; on the other hand, the bracket can be hidden in the height of the steel beam, so that the bracket can avoid occupying the building space below the steel beam, and the bracket has wider application range.

2. The steel beam is designed into the end variable cross section, and the characteristic of smaller bending moment of the end of the simply supported beam is utilized, so that the height of the end beam can be properly reduced, and the structure height is further saved.

3. According to the utility model, the inward extension beam is arranged on the inner side of the groove-shaped bracket to balance the bending moment of the inward extension beam, and when the inward extension beam cannot envelop the bottom of the bracket, the beam bottom is correspondingly provided with the armpit, so that the stress reliability is further improved.

4. According to the utility model, the beam lower support is arranged between the steel beam and the groove-shaped bracket, and is a fixedly connected support, a hinged support or a sliding support, and when the beam lower support is a sliding support, an anti-collision plate is arranged on the concrete beam to prevent the steel beam from damaging a concrete structure, and a limiting device is arranged to prevent the steel beam from falling, so that the utility model is more flexible and safer in practical application.

Drawings

FIG. 1 is a transverse view of the present utility model;

FIG. 2 is a longitudinal view of the present utility model;

FIG. 3 is an isometric view of the present utility model;

Wherein: 1. the composite floor slab comprises groove-shaped brackets, 2, steel beams, 3, composite floor slabs, 4, beam lower supports, 5, limiting clamping strips, 6, limiting bolts, 7, an anti-collision plate, 8, concrete beams, 9, beam lower haunches, 10 and inward stretching sub-beams, wherein A, B, C are the cross section sizes of the groove-shaped brackets 1.

Detailed Description

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

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

The axial view of the groove-shaped bracket is shown in fig. 3, two side walls of the groove-shaped bracket 1 are turned upwards to form a concave shape, and the turning-up height is not higher than the beam height of the steel beam 2, so that the web height required by the bracket can be hidden in the height of the steel beam 2. The thickness of the bottom plate of the groove-shaped bracket 1 is related to the concentrated force transmitted by the steel beam 2, and the requirement of impact and cutting resistance is required to be met. The channel bracket 1 may be disposed on a concrete beam or on a wall or column, and the present embodiment is described by taking the channel bracket disposed on the concrete beam as an example.

The channel bracket 1 can be used for placing a steel beam 2 or a concrete beam, the section of the channel bracket can be I-shaped or other shapes, and the I-shaped steel beam is selected for illustration in the embodiment. The steel beam 2 can be subjected to variable cross section near the support according to the stress characteristics, so that the structural height is saved to the greatest extent. The upper part of the steel beam 2 can adopt a composite floor slab 3 to realize the requirements of people on the building, heat preservation, water prevention and the like.

As shown in fig. 2, the inner span corresponding to the side wall of the groove-shaped bracket 1 is provided with an inner extension beam 10 to balance the bending moment, and when the bottom of the inner extension beam 10 cannot envelop the bottom of the bracket, the bottom of the bracket is also provided with a beam bottom haunching 9, so that the structural stress is more reasonable.

As shown in fig. 1, a support 4 of the steel beam 2 is arranged between the steel beam 2 and the groove bracket 1, and the support 4 can be a fixed support, a hinged support or a sliding support, and the sliding support is selected for illustration in this embodiment. The cross-sectional dimension A, B, C of the channel bracket 1 is determined by the sliding displacement of the steel beam 2, specifically, C is the lateral displacement of the steel beam 2, a is the longitudinal extension displacement of the steel beam 2, and B is the longitudinal extension displacement of the steel beam 2. At this time, the anti-collision plate 7 is arranged on the concrete beam 8, meanwhile, the limiting devices are arranged at the bottoms of the groove-shaped bracket 1 and the steel beam 2, the limiting devices can be realized through the limiting clamping strips 5 and the limiting bolts 6 welded on the steel beam 2, the limiting clamping strips 5 are provided with oblong holes at the limiting bolts 6, and the main structure can be protected through the arrangement.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. The groove-shaped bracket is characterized by comprising a bottom plate and webs distributed on two sides of the bottom plate, wherein when the groove-shaped bracket (1) is matched with a steel beam (2), the steel beam (2) is placed on the groove-shaped bracket (1), the webs of the groove-shaped bracket (1) are distributed on two sides of the steel beam (2) in an upturning mode, and the upturning height of the webs is not higher than the beam height of the steel beam (2).

2. A channel bracket according to claim 1, characterized in that the steel beam (2) has an i-shaped cross section.

3. A channel bracket according to claim 1, characterized in that the steel beam (2) is designed with end sections varying.

4. A channel bracket according to claim 1, characterized in that the channel bracket (1) is arranged on a concrete beam (8), a concrete wall or a concrete column.

5. A channel bracket according to claim 1, characterized in that a beam lower support (4) is arranged between the steel beam (2) and the channel bracket (1), the beam lower support (4) being a rigid support, a hinged support or a sliding support.

6. A channel bracket according to claim 5, characterized in that, when the beam lower support (4) is a sliding support, a crash panel (7) is arranged on the concrete beam (8).

7. The groove-shaped bracket according to claim 5, wherein when the beam lower support (4) is a sliding support, a limiting device is arranged, and the limiting device comprises a limiting clamping strip (5) and a limiting bolt (6) which are welded on the steel beam (2).

8. A channel bracket according to claim 5, characterized in that the size of the channel bracket (1) when the beam lower support (4) is a sliding support is dependent on the sliding displacement of the steel beam (2), which sliding displacement comprises a lateral displacement, a longitudinal extension displacement and a longitudinal pull-out displacement of the steel beam (2).

9. A channel bracket according to claim 1, characterized in that corresponding inner extension beams (10) are provided at the side walls of the channel bracket (1).

10. A channel bracket according to claim 9, characterized in that a beam bottom haunching (9) is arranged between the inner extension beam (10) and the channel bracket (1) when the inner extension beam (10) cannot envelope the bottom of the channel bracket (1).