CN221073221U

CN221073221U - Concrete beam

Info

Publication number: CN221073221U
Application number: CN202321540242.0U
Authority: CN
Inventors: 董罗川
Original assignee: Kashgar Chaoxiang New Building Materials Co ltd
Current assignee: Kashgar Chaoxiang New Building Materials Co ltd
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2024-06-04
Anticipated expiration: 2033-06-16

Abstract

The utility model discloses a concrete beam, which relates to the technical field of concrete fabricated buildings and comprises a concrete beam body, wherein the concrete beam body comprises a steel reinforcement framework and a post-cast concrete beam, beam end nodes are arranged at two ends of the post-cast concrete beam, the steel reinforcement framework is embedded into the concrete beam body, two ends of the steel reinforcement framework are connected with the beam end nodes and extend outwards to form reserved connecting steel bars, the upper end of the steel reinforcement framework extends upwards to form an inverted U-shaped lifting lug, the beam end nodes comprise end plates, I-shaped steel plates are arranged on the end plates, shear keys are distributed on flanges and side plates of the I-shaped steel plates, a composite steel-concrete structure of the steel reinforcement framework and the post-cast concrete beam is adopted, the reserved connecting steel bars are conveniently matched with other beams and columns for connection, the adjacent I-shaped steel plates are connected by the shear keys in a matched manner, the reserved connecting steel bars are matched to form a composite connecting structure, and concrete pouring connecting points are matched with post-curing, so that the whole process is simple in procedure and convenient to assemble.

Description

Concrete beam

Technical Field

The utility model relates to the field of buildings, in particular to the technical field of concrete assembly type buildings.

Background

The application of the fabricated building in the steel structure is relatively mature. The assembly type is mainly applied to high-rise and super high-rise buildings and steel structure industrial plants. The steel structure can be well applied to high-rise and super high-rise public buildings, mainly utilizes the characteristic of high strength per unit weight of the steel structure, and can reduce the cross section under the condition of meeting the requirements of earthquake resistance and stress, thereby better meeting the lifting and use requirements. Can be well applied to industrial buildings, mainly utilizes the characteristics of high strength and large span of a steel structure, and can better meet the process requirements.

There are three types of concrete fabricated beams. A prefabricated beam is made of ordinary concrete, and is prepared through prefabricating the lower part of the beam, and pouring the plate and the overlapped part of the beam. Such beams are generally used in structures that are not large in span and are not heavily loaded. The second is a pretensioned prestressed concrete beam. The beam is applied to a structure with larger load and larger span, has higher field requirements, has sufficient field to manufacture a tensioning table and has more transportation. And thirdly, a post-tensioning prestressed concrete beam. The beam is applied to a structure with larger load and larger span, has relatively less requirements on site, and has less transportation under the condition of site.

When the conventional assembly construction type concrete beam column is used, the problems of low strength of a connecting structure, more working procedures, low efficiency and the like exist.

Disclosure of utility model

The utility model aims at: in order to solve the technical problems, the utility model provides the concrete beam which is convenient to connect and has high structural strength.

The utility model adopts the following technical scheme for realizing the purposes:

The utility model provides a concrete beam, includes the concrete beam body, the concrete beam body includes framework of steel and post-cast concrete roof beam, post-cast concrete roof beam both ends are equipped with beam end node, the framework of steel embedding the concrete beam body, the framework of steel both ends with beam end node connects and outwards extends and forms the reserved connection reinforcing bar, post-cast concrete roof beam and the framework of steel that is located the roof beam form the precast concrete structure, framework of steel upper end upwards extends the lug that forms the shape of falling "U", beam end node is including being located post-cast concrete roof beam tip's end plate, be equipped with the I-steel plate of vertical setting on the end plate, I-steel plate edge of a wing and curb plate are last to be distributed with the shear force key.

Through above-mentioned scheme, adopt the compound steel reinforced concrete structure of framework of steel and post-cast concrete roof beam, the lug is convenient to hoist and mount, reserves the connecting reinforcement and conveniently cooperates with other beam columns to be connected, and the connection process adopts the adjacent I-steel board of shear force key connection, cooperates to reserve the connecting reinforcement, forms compound connection structure, adopts concrete placement tie point simultaneously, cooperates the later maintenance, and structural strength is big, and whole process is simple, and structural strength is big, and the load capacity is big, convenient assembling for the construction progress.

Further, the reinforcement cage comprises a stressed rib arranged along the length direction of the post-cast concrete beam, and a standing rib and a stirrup which are arranged above the stressed rib, and the lifting lug extends upwards from the upper end of the stirrup.

Through above-mentioned scheme, the both ends pulling force is accepted to the atress muscle, and the support upright muscle cooperation is also convenient for tighten simultaneously and is installed in accepting the pulling force, and atress muscle and support upright muscle and stirrup form three-dimensional steel reinforcement skeleton texture, are convenient for form high strength's reinforced concrete structure after pouring, and the reinforcement distributes evenly, and structural strength is big.

Further, reinforcing bars are distributed at the joint of the lifting lugs of the steel reinforcement framework.

Through above-mentioned scheme, set up the structural strength near reinforcing bar reinforcing lug.

Furthermore, the I-shaped steel plate penetrates through the end plate and stretches into the steel reinforcement framework, and the stirrups are wound on the periphery of the I-shaped steel plate.

Through the scheme, the I-shaped steel plate penetrates through the end plate and stretches into the steel reinforcement framework, a tightly combined connection structure is formed in the pouring process, and the overall structural strength of the device is enhanced.

Further, the distribution density of the steel reinforcement framework at the periphery of the I-shaped steel plate is increased, and a plurality of combining holes are formed in the end part of the I-shaped steel plate extending into the steel reinforcement framework.

Through the scheme, the connection strength of the I-shaped steel plate and the steel reinforcement framework after pouring is increased, the combination strength of the I-shaped steel plate and the concrete is enhanced by matching with the combination hole, and the overall structural strength of the device is further enhanced.

Further, the middle part of the concrete beam body is provided with a beam middle node, the beam middle node comprises a locating plate extending into the steel reinforcement framework and a connecting plate perpendicular to the locating plate, and shear keys are also distributed on the connecting plate.

Through above-mentioned scheme, set up the node and be convenient for carry out connection structure in the roof beam, form firm supporting pedestal through setting up locating plate embedding reinforcement cage after pouring concrete to set up the connecting plate and cooperate the shear key to connect, bulk strength is high.

Furthermore, the locating plates are uniformly distributed in the steel reinforcement framework, and the connecting plates are inserted into one side of the locating plates and are vertically connected with the other side of the locating plates.

By the scheme, the overall structural strength is further enhanced.

The beneficial effects of the utility model are as follows:

1. The utility model has high structural strength, adopts a composite reinforced concrete structure of a reinforcement cage and a post-cast concrete beam, the lifting lug is convenient to hoist, the reserved connecting reinforcement is convenient to be matched with other beams and columns for connection, the adjacent I-shaped steel plates are connected by adopting a shear key in the connection process, the reserved connecting reinforcement is matched to form a composite connecting structure, meanwhile, the concrete pouring connection point is adopted, and the post-curing is matched, so that the structural strength is high, the whole process is simple, the structural strength is high, the load capacity is high, the assembly is convenient, and the construction progress is accelerated;

Drawings

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

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is a schematic view of the structure of the post-cast concrete beam of the present utility model;

fig. 4 is a left side view of the present utility model.

Reference numerals: 11. a reinforcement cage; 12. post-casting a concrete beam; 13. a beam end node; 14. reserving connecting steel bars; 15. lifting lugs; 16. an end plate; 17. an I-shaped steel plate; 18. a shear key; 19. a stress bar; 20. erecting a rib; 21. stirrups; 22. a coupling hole; 23. a beam-in-beam node; 24. a positioning plate; 25. and (5) connecting a plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. 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.

Example 1

As shown in fig. 1 to 4, this embodiment provides a concrete beam, the concrete beam is the prefabricated concrete beam that is applicable to the assembled building, the on-the-spot assembly after adopting the mill processing, pour the tie point maintenance, joint strength is high, bulk strength is high, including the concrete beam body, the concrete beam body includes skeleton 11 and post-cast concrete beam 12, post-cast concrete beam 12 both ends are equipped with beam end node 13, skeleton 11 embedding concrete beam body, skeleton 11 both ends are connected with beam end node 13 and outwards extend and form reserved connection reinforcing steel bar 14, post-cast concrete beam 12 and skeleton 11 that is located the roof beam form the precast concrete structure, skeleton 11 upper end upwards extends and forms lug 15 of "U" shape, beam end node 13 is including being located the end plate 16 of post-cast concrete beam 12 tip, be equipped with the I-steel plate 17 of vertical setting on the end plate 16, I-steel plate 17 edge of a wing and curb plate are last to be distributed with shear key 18, adopt the compound reinforced concrete structure of skeleton 11 and post-cast concrete beam 12, the lug 15 conveniently carries out the hoist and mount, the skeleton is convenient to connect with other post-match, the connection reinforcing steel bar 14 adopts shear key 18 to connect adjacent I-steel plate connection, the complex connection joint connection, the complex connection point that is formed by the complex connection of the structure, the complex connection of complex connection structure of complex, the complex connection structure of complex structure, high-phase, high-level construction load, large progress, large construction process is easy to be convenient, and large construction process is convenient, and high construction process is easy to be cured.

Referring to fig. 2 and 3, the reinforcement cage 11 includes a stress rib 19 disposed along a length direction of the post-cast concrete beam 12, and an erection rib 20 and a stirrup 21 disposed above the stress rib 19, the lifting lug 15 extends upward from an upper end of the stirrup 21, the reinforcement cage 11 is provided with reinforcing bars at a joint of the lifting lug 15, the i-steel plate 17 penetrates through the end plate 16 and extends into the reinforcement cage 11, the stirrup 21 is wound around an outer periphery of the i-steel plate 17, the reinforcement cage 11 is increased in distribution density at the outer periphery of the i-steel plate 17, and a plurality of combining holes 22 are formed at an end of the i-steel plate 17 extending into the reinforcement cage 11. Therefore, the tension bars 19 bear the tension forces at two ends, the erection bars 20 are matched with the tension forces and are convenient to tighten and install, the structural strength near the lifting lug 15 is enhanced by the reinforcing reinforcement bars, the I-shaped steel plate 17 penetrates through the end plate 16 and stretches into the steel reinforcement framework 11, a tightly combined connection structure is formed in the pouring process, the integral structural strength of the device is enhanced, the connection strength of the I-shaped steel plate 17 and the steel reinforcement framework 11 after pouring is enhanced, the combination hole 22 is matched, the combination strength of the I-shaped steel plate 17 and concrete is enhanced, the integral structural strength of the device is further enhanced, the stress bars 19, the erection bars 20 and the hoops 21 form a three-dimensional steel reinforcement framework 11 structure, a high-strength reinforced concrete structure is formed after pouring, the reinforcement bars are uniformly distributed, and the structural strength is high.

Referring to fig. 1, 3 and 4, a beam middle node 23 is arranged in the middle of the concrete beam body, the beam middle node 23 comprises a locating plate 24 extending into the steel reinforcement frame 11 and a connecting plate 25 perpendicular to the locating plate 24, shear keys 18 are also distributed on the connecting plate 25, the locating plate 24 is provided with two shear keys uniformly distributed in the steel reinforcement frame 11, and the connecting plate 25 is inserted into one side locating plate 24 and is perpendicularly connected with the other side locating plate 24. The beam middle node 23 is arranged to facilitate the connection structure in the beam, the positioning plate 24 is embedded into the steel reinforcement framework 11 to form a firm supporting base after concrete is poured, and the connecting plate 25 is arranged to be connected by being matched with the shear key 18, so that the overall strength is high.

The implementation principle is as follows: the utility model has high structural strength, adopts the composite reinforced concrete structure of the reinforcement cage 11 and the post-cast concrete beam 12, the lifting lug 15 is convenient to hoist, the reserved connecting reinforcement 14 is convenient to be matched with other beams and columns for connection, the adjacent I-shaped steel plates 17 are connected by adopting the shear key 18 in the connection process, the reserved connecting reinforcement 14 is matched for forming a composite connecting structure, and meanwhile, the concrete pouring connection point is adopted for matching with the post-cast concrete beam 12, so that the structural strength is high, the whole process is simple in procedure, the structural strength is high, the load capacity is high, the assembly is convenient, and the construction progress is accelerated.

Claims

1. The utility model provides a concrete beam, includes the concrete beam body, its characterized in that, the concrete beam body includes framework (11) and post-cast concrete roof beam (12), post-cast concrete roof beam (12) both ends are equipped with beam end node (13), framework (11) embedding the concrete beam body, framework (11) both ends with beam end node (13) are connected and outwards extend and form and reserve connecting reinforcement (14), post-cast concrete roof beam (12) and framework (11) that are located the roof beam form concrete prefabricated structure, framework (11) upper end upwards extends lug (15) that form the shape of falling "U", beam end node (13) are including being located end plate (16) of post-cast concrete roof beam (12) tip, be equipped with I-steel plate (17) of vertical setting on end plate (16), I-steel plate (17) edge of a wing and curb plate upper distribution have shear force key (18).

2. A concrete girder according to claim 1, characterized in that the reinforcement cage (11) comprises a load-bearing bar (19) arranged in the length direction of the post-cast concrete girder (12), and a lifting lug (20) and a stirrup (21) above the load-bearing bar (19), the lifting lug (15) extending upwards from the upper end of the stirrup (21).

3. A concrete beam according to claim 2, characterized in that the reinforcement cage (11) is provided with reinforcing bars at the connection of the lifting lugs (15).

4. A concrete girder according to claim 2, characterized in that the i-shaped steel plate (17) penetrates the end plate (16) and extends into the reinforcement cage (11), and the stirrup (21) is wound around the outer circumference of the i-shaped steel plate (17).

5. The concrete beam according to claim 4, wherein the distribution density of the reinforcement cage (11) at the periphery of the i-shaped steel plate (17) is increased, and a plurality of combining holes (22) are formed at the end of the i-shaped steel plate (17) extending into the reinforcement cage (11).

6. The concrete beam according to claim 1, wherein a beam center node (23) is arranged in the middle of the concrete beam body, the beam center node (23) comprises a positioning plate (24) extending into the reinforcement cage (11) and a connecting plate (25) perpendicular to the positioning plate (24), and shear keys (18) are also distributed on the connecting plate (25).

7. The concrete beam according to claim 6, wherein the positioning plate (24) is provided with two positioning plates uniformly distributed in the reinforcement cage (11), and the connecting plate (25) is inserted into one side of the positioning plate (24) and is vertically connected with the other side of the positioning plate (24).