Prefabricated split beam integrated connecting structure

Abstract

The utility model relates to the technical field of building construction, in particular to a prefabricated split beam integrated connecting structure. Comprising a split beam and a beam end box pile cap used for being connected with the split beam, limiting grooves matched with the split beam and used for bearing the end of the split beam are formed in the side faces of the beam end box pile cap, the beam end box pile cap comprises a horizontal bearing face used for bearing the end of the split beam, and a bottom steel plate is embedded in the horizontal bearing face of the beam end box pile cap; a connecting steel plate is pre-embedded in the end part of the split beam and is fixedly connected with the bottom steel plate. Combination of the detachable prefabricated parts is achieved through structural matching of the split beams of the split structure and the beam end box pile caps, the prefabrication rate is improved, and meanwhile the requirements for hoisting and transporting are reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to an integrated connection structure for prefabricated split beams. Background Technology

[0002] Against the backdrop of increasing demand for industrialized construction and rapid infrastructure development, traditional cast-in-place concrete construction methods are gradually revealing their shortcomings, such as low efficiency, difficulty in quality control, and significant environmental impact. This is especially true in foundation projects with large plan dimensions and complex structures, such as large power compartments, bridge piers, and underground utility tunnels, where monolithic cast-in-place construction faces numerous technical bottlenecks.

[0003] Traditional precast technology is limited by the size and weight of components. Large foundation slabs require monolithic casting, resulting in a large amount of on-site formwork, long concrete curing periods, and low construction efficiency. In addition, large monolithic cast components place extremely high demands on transport vehicles and lifting equipment, requiring specially designed transport frames and ultra-large cranes to work together. This results in transportation costs accounting for a large proportion of the total cost and being significantly restricted by road conditions. Utility Model Content

[0004] This utility model provides an integrated connection structure for prefabricated split beams to solve the technical problems of low prefabrication rate of large structural prefabricated components and high requirements for hoisting and transportation in the prior art.

[0005] To solve the above problems, the present invention provides a prefabricated split beam integrated connection structure with the following technical solution:

[0006] The device includes a split beam and a beam-end cap for connecting the split beam. The side of the beam-end cap is provided with a limiting groove that cooperates with the split beam and is used to support the end of the split beam. The beam-end cap includes a horizontal bearing surface for supporting the end of the split beam. A bottom steel plate is pre-embedded on the horizontal bearing surface of the beam-end cap. A connecting steel plate is pre-embedded at the end of the split beam. The connecting steel plate is fixedly connected to the bottom steel plate.

[0007] Furthermore, the beam end cap is provided with limiting grooves on all four sides, and the bottom steel plate is in a cross shape.

[0008] Furthermore, the connecting steel plate is an integral structure with an L-shaped side, and the bottom panel of the connecting steel plate contacts the bottom steel plate and is fixedly connected by welding.

[0009] The four separate beams on the beam end cap form a casting cavity connected by nodes, and the side panel of the connecting steel plate is the side of the casting cavity connected by nodes.

[0010] Furthermore, the bottom panel of the connecting steel plate and the bottom surface of the split beam are on the same horizontal plane.

[0011] Furthermore, the bottom panel of the connecting steel plate has a length of L1, the limiting groove has a length of L2, and L1 = L2.

[0012] Furthermore, the length of the side panel of the connecting steel plate is L3, and the depth of the limiting groove is D1, where L3 = D1.

[0013] The beneficial effects of the prefabricated split beam integrated connection structure provided by this utility model are:

[0014] This invention achieves the combination of detachable prefabricated components through the structural cooperation of split beams and beam-end box-pile caps, improving the prefabrication rate while reducing hoisting and transportation requirements. The overall connection structure forms a "steel-concrete composite node" by welding connecting steel plates to bottom steel plates and then cooperating with post-poured concrete, meeting the building's load requirements. Attached Figure Description

[0015] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0016] Figure 1 This is a structural schematic diagram of the prefabricated split beam integrated connection structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the beam end cap of this utility model;

[0018] Figure 3 This is a side view of the split beam in this utility model;

[0019] Figure 4 This is a side view of the box-shaped pile cap at the end of the beam in this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Split beam; 11. Connecting steel plate; 111. Side panel; 112. Bottom panel; 2. Beam end cap; 21. Limiting groove; 22. Bottom steel plate; 3. Node connection casting cavity. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] The number of any elements in the accompanying drawings is for illustrative purposes only and not as a limitation, and any naming is for distinction only and has no limiting meaning.

[0024] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0025] An embodiment of a prefabricated split beam integrated connection structure provided by this utility model:

[0026] like Figures 1 to 4 As shown,

[0027] The device includes a split beam 1 and a beam end cap 2 for connecting the split beam 1. The sides of the beam end cap 2 are provided with limiting grooves 21 that cooperate with the split beam 1 and are used to support the ends of the split beam 1. The beam end cap 2 includes a horizontal bearing surface for supporting the ends of the split beam 1. A bottom steel plate 22 is pre-embedded on the horizontal bearing surface of the beam end cap 2. A connecting steel plate 11 is pre-embedded at the ends of the split beam 1. The connecting steel plate 11 is fixedly connected to the bottom steel plate 22.

[0028] The modular structure of the split beam 1 and the box-pile cap 2 at the beam end enables the combination of detachable prefabricated components, thereby increasing the prefabrication rate and reducing the requirements for hoisting and transportation.

[0029] In this embodiment, the beam end cap 2 is provided with limiting grooves 21 on all four sides, and the bottom steel plate 22 is in a cross shape.

[0030] The connecting steel plate 11 is an integrated structure with an L-shaped side. The bottom panel 112 of the connecting steel plate 11 contacts the bottom steel plate 22 and is fixedly connected by welding, forming a rigid welded connection.

[0031] The four separate beams 1 on the beam end cap 2 form a casting cavity 3 connected by nodes. The side panel 111 of the connecting steel plate 11 serves as the side of the casting cavity 3 connected by nodes. The side panel 111 directly serves as the side formwork of the casting cavity, reducing the amount of on-site formwork support.

[0032] The connecting steel plate 11 is welded to the bottom steel plate 22 and then reinforced with concrete to form a "steel-concrete composite joint" to meet the building's load requirements.

[0033] The bottom panel 112 of the connecting steel plate 11 is on the same horizontal plane as the bottom surface of the split beam 1.

[0034] The bottom panel 112 of the connecting steel plate 11 has a length of L1, and the length of the limiting groove 21 is L2, and L1 = L2.

[0035] The length of the side panel 111 of the connecting steel plate 11 is L3, and the depth of the limiting groove 21 is D1, where L3 = D1.

[0036] The bottom panel 112 and the bottom surface of the split beam 1 are on the same horizontal plane. On the one hand, this improves the pre-embedded connection strength between the connecting steel plate 11 and the split beam 1. On the other hand, it avoids the formation of a stepped surface at the end of the connecting steel plate 11, thereby reducing the occurrence of stress concentration.

[0037] In addition, the structural fit allows the end of the split beam 1 to be fully embedded in the limiting groove 21, improving the overall strength of the structure.

[0038] The prefabricated split beam integrated connection structure in this embodiment is applied to the foundation of power compartment with a relatively large planar area. By prefabricating and assembling it into a whole, the prefabrication rate is improved and the hoisting and transportation needs are reduced.

[0039] Based on the above description in this specification, those skilled in the art will also understand that the following terms used, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," are terms indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0040] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A precast, integrated connection structure for split beams, comprising split beams (1) and beam end caps (2) for connecting the split beams (1), characterized in that, The side of each beam end cap (2) is provided with a limiting groove (21) that cooperates with the split beam (1) and is used to support the end of the split beam (1). The beam end cap (2) includes a horizontal bearing surface for supporting the end of the split beam (1). A bottom steel plate (22) is pre-embedded on the horizontal bearing surface of the beam end cap (2). A connecting steel plate (11) is pre-embedded at the end of the split beam (1). The connecting steel plate (11) is fixedly connected to the bottom steel plate (22).

2. The prefabricated split beam integrated connection structure according to claim 1, characterized in that, The beam end cap (2) is provided with limiting grooves (21) on all four sides, and the bottom steel plate (22) is in a cross shape.

3. The prefabricated split beam integrated connection structure according to claim 2, characterized in that, The connecting steel plate (11) is an integral structure with an L-shaped side. The bottom panel (112) of the connecting steel plate (11) is in contact with the bottom steel plate (22) and is fixedly connected by welding. The four separate beams (1) on the beam end box pile cap (2) form a casting cavity (3) connected by nodes, and the side panel (111) of the connecting steel plate (11) is the side of the casting cavity (3) connected by nodes.

4. The prefabricated split beam integrated connection structure according to claim 3, characterized in that, The bottom panel (112) of the connecting steel plate (11) is on the same horizontal plane as the bottom surface of the split beam (1).

5. The prefabricated split beam integrated connection structure according to claim 3, characterized in that, The bottom panel (112) of the connecting steel plate (11) has a length of L1, and the length of the limiting groove (21) is L2, and L1 = L2.

6. The prefabricated split beam integrated connection structure according to claim 3, characterized in that, The length of the side panel (111) of the connecting steel plate (11) is L3, and the depth of the limiting groove (21) is D1, wherein L3 = D1.

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