CN207828758U - A kind of novel fabricated combination beam - Google Patents

Abstract

The utility model discloses a novel assembled composite beam, which comprises a base, a pillar, a bottom plate, a perforated steel plate, a concrete plate, bolts, nuts and concrete holes, a pillar is fixedly connected above the base, and a pillar is fixedly connected above the pillar. There is a bottom plate, and both sides of the bottom plate are fixedly connected with perforated steel plates by welding, a concrete slab is arranged above the bottom slab, and concrete holes are arranged below the concrete slab. The utility model is simple in structure and novel in design. Through the observation and thinking of actual engineering, a large number of relevant documents have been consulted, and the research results of previous people have been reviewed, and a new type of assembled composite beam structure is proposed. It saves the construction formwork process and formwork, reduces the construction of scaffolding, is beneficial to on-site construction, saves manpower, material resources, and financial resources, has good economic benefits, and has good mechanical properties to resist longitudinal shear force and lateral lift-off force.

Description

A New Assembled Composite Beam

technical field

The utility model relates to a composite beam, in particular to a novel assembled composite beam.

Background technique

The beam formed by combining two different materials or different processes is called a composite beam, also known as a combined beam. Some main girders use one material, while the bridge decks connecting the main girders use another material; there are also composite girders composed of prefabricated reinforced concrete girders or prestressed concrete girders and reinforced concrete decks cast in situ.

Traditional composite beams are extremely cumbersome to construct, consume manpower and material resources, rely heavily on scaffolding, and have limited structural strength. Therefore, we propose a new type of assembled composite beam.

Utility model content

The main purpose of the utility model is to provide a novel assembled composite beam, which can effectively solve the problems in the background technology.

In order to achieve the above object, the technical scheme that the utility model takes is:

A new type of assembled composite beam, comprising a base, a pillar, a bottom plate, a perforated steel plate, a concrete plate, bolts, nuts and concrete holes, a pillar is fixedly connected above the base, a bottom plate is fixedly connected above the pillar, and the Both sides of the bottom plate are fixedly connected with perforated steel plates by welding, a concrete slab is arranged above the bottom plate, and concrete holes are set below the concrete slab, and the concrete perforations are fixedly connected with the perforated steel plates by bolts. A nut is arranged on one side of the bolt.

Further, the concrete openings are consistent with the opening diameters on the surface of the perforated steel plate.

Further, the nuts and bolts are specifically made of low carbon alloy steel.

Further, the concrete slab is specifically cast from 300 grade concrete with a strength grade of C28.

Further, the base, the pillar, the bottom plate and the perforated steel plate are specifically made of low-carbon manganese steel.

Compared with the prior art, the utility model has the following beneficial effects: the new assembled composite beam:

1. Fully assembled, convenient and quick construction, which can save the construction formwork process and formwork, reduce the construction of scaffolding, and facilitate on-site construction.

2. It saves manpower, material resources and financial resources, and has good economic benefits; it has good mechanical properties to resist longitudinal shear force and transverse lift-off force.

3. The base, pillars, bottom plate and perforated steel plate are made of low-carbon manganese steel, which has high structural strength, strong stress capacity and durability.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the new assembled composite beam of the present invention.

Fig. 2 is a schematic diagram of the dismantled structure of the new assembled composite beam of the present invention.

Fig. 3 is a schematic cross-sectional structure diagram of the new assembled composite beam of the present invention.

In the figure: 1, base; 2, pillar; 3, bottom plate; 4, perforated steel plate; 5, concrete plate; 6, bolt; 7, nut; 8, concrete hole.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

As shown in Figures 1-3, a new type of assembled composite beam includes a base 1, a pillar 2, a bottom plate 3, a perforated steel plate 4, a concrete plate 5, bolts 6, nuts 7 and concrete holes 8, the base 1 A pillar 2 is fixedly connected above the pillar 2, and a bottom plate 3 is fixedly connected above the pillar 2. Both sides of the bottom plate 3 are fixedly connected with perforated steel plates 4 by welding, and a concrete plate 5 is arranged above the bottom plate 3. Concrete openings 8 are arranged below the concrete slab 5 , and the concrete openings 8 are fixedly connected to the opening steel plate 4 through bolts 6 , and nuts 7 are arranged on one side of the bolts 6 .

Wherein, the concrete opening 8 is consistent with the opening diameter on the surface of the perforated steel plate 4, which facilitates the installation of the bolt 6 and the nut 7, which is convenient and convenient.

Wherein, the nuts 7 and the bolts 6 are specifically made of low-carbon alloy steel with high structural strength and strong fixing ability.

Wherein, the concrete slab 5 is specifically cast from 300-grade concrete with a strength grade of C28. The concrete structure has high strength and safety performance is guaranteed.

Wherein, the base 1, the pillar 2, the bottom plate 3 and the perforated steel plate 4 are specifically made of low-carbon manganese steel, which has high structural strength, strong stress capacity and durability.

It should be noted that the utility model is a new type of assembled composite beam. When working, two perforated steel plates 4 are welded to the upper flange of the bottom plate 3, and the concrete plate 5 is prefabricated into a T shape. The 4 apertures of the perforated steel plate are the same. Bolts 6 are used to connect the bottom plate 3 and the concrete slab 5 together. The bolts 6 are used to resist the longitudinal shear force between the concrete slab 5 and the bottom plate 3 and the transverse lift-off force. Base plate 3 size, two perforated steel plate 4 distances, aperture size, bolt 6 length and diameter, spacing between adjacent bolt 6 and bolt 6 row numbers etc. can be decided according to specific projects.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (5)

1. A new type of prefabricated composite beam, including base (1), pillar (2), bottom plate (3), perforated steel plate (4), concrete plate (5), bolts (6), nuts (7) and concrete The hole (8) is characterized in that: a pillar (2) is fixedly connected above the base (1), a bottom plate (3) is fixedly connected above the pillar (2), and both sides of the bottom plate (3) pass through A perforated steel plate (4) is fixedly connected by welding, a concrete slab (5) is arranged above the bottom plate (3), and a concrete perforation (8) is provided below the concrete slab (5), and the concrete perforation (8) It is fixedly connected with the perforated steel plate (4) through the bolt (6), and a nut (7) is arranged on one side of the bolt (6). 2. A new type of prefabricated composite beam according to claim 1, characterized in that: the concrete opening (8) is consistent with the opening diameter on the surface of the perforated steel plate (4). 3. A new assembled composite beam according to claim 1, characterized in that: said nuts (7) and bolts (6) are specifically made of low-carbon alloy steel. 4. A new type of prefabricated composite beam according to claim 1, characterized in that: the concrete slab (5) is specifically cast from 300-marked concrete with a strength grade of C28. 5. A new type of assembled composite beam according to claim 1, characterized in that: the base (1), pillar (2), bottom plate (3) and perforated steel plate (4) are specifically low-carbon manganese steel Made of material.