Beam-slab indirect joint connecting structure

Abstract

The utility model relates to the field of engineering construction connecting structure especially relates to a beam slab gap joint connecting structure, including cast -in -place frame column, prefabricated frame beam and prestressed concrete pressure beam slab, the prefabricated frame beam is the long strip columnar structure of vertical face projection as inverted T shape, the prestressed concrete pressure beam slab is the long strip plate structure of vertical face projection as pi shape, the cast -in -place frame column with lower bottom surface fixed connection of prefabricated frame beam, prefabricated frame beam as intermediate receiving part, its with prestressed concrete pressure beam slab fixed connection, the joint place between two prestressed concrete pressure beam slab is provided with reinforcing connection structure, solved the technical problem that the beam slab interjoint is not stable in the current exempt from supporting exempt from mould assembly type construction scheme.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction connection structures, and in particular to a joint connection structure between beams and slabs. Background Technology

[0002] The prefabricated building scheme without support or formwork used in existing engineering construction uses cast-in-place frame columns, precast inverted T-shaped frame beams and prestressed concrete slabs for prefabricated installation. It is mainly suitable for high-rise reinforced concrete structures such as factories and office buildings with large floor height, large span, large load and large scale.

[0003] Its advantages include beams and slabs that can be installed without support or formwork during construction, saving materials, eliminating plastering, preventing detachment, ensuring high quality, short construction period, large load capacity, and allowing for mass production of components, while also saving labor costs. However, there are technical problems at the joint between the beams and slabs and the frame beams, such as unstable joints leading to overall structural instability and potentially safety hazards.

[0004] Chinese utility model patent application No. 202422174647.8 discloses a waterproof structure for beam-slab joints in prefabricated buildings. The structure includes a beam and prefabricated slabs. Two adjacent prefabricated slabs overlap on the beam to form a joint. After cleaning, a concrete-specific sealant is applied to the upper surface of the beam and the joint area to form a sealing layer. A sealant is then applied to the upper surface of the sealing layer to form a first isolation layer. Sealant is injected into the bottom of the joint to form a first sealing layer. A polyurethane foam board is placed above the first sealing layer to form a second isolation layer. A cavity is formed between the second isolation layer and the upper side of the first sealing layer. Sealant is then applied to the upper side of the second isolation layer to form a second sealing layer. This utility model employs an overall structural design with two isolation layers and two sealing layers, effectively addressing the thermal expansion and contraction changes of the joint. The cavity structure allows any water that may seep in to drain smoothly. The combination of the sealing layer and the first isolation layer effectively prevents water seepage into the joint, ensuring the safe and durable connection between the beam and the prefabricated slab. The technical solution proposed by the above-mentioned utility model improves the joint between beams and slabs to achieve a waterproof effect. However, in actual application, the stability of the joint between beams and slabs is of paramount importance, as its stability affects the overall structural safety of the factory building. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned technical problems, this utility model proposes a beam-slab joint connection structure, which solves the technical problem of unstable beam-slab joints in the existing prefabricated construction scheme without support or formwork.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a beam-slab joint connection structure, comprising cast-in-place frame columns, precast frame beams, and prestressed concrete bearing beams, wherein the precast frame beams are elongated columnar structures with an inverted T-shaped vertical projection, and the prestressed concrete bearing beams are elongated plate-like structures with a π-shaped vertical projection. The cast-in-place frame columns are fixedly connected to the bottom surfaces of the precast frame beams, and the precast frame beams serve as intermediate supporting parts, which are fixedly connected to the prestressed concrete bearing beams. A reinforcing connection structure is provided at the joint between the two prestressed concrete bearing beams.

[0007] Furthermore, the precast frame beam is provided with a first support surface, a second support surface, and a third support surface from top to bottom. The prestressed concrete bearing beam includes a first bearing part and a second bearing part. The first bearing part and the second bearing part are perpendicular to each other. The second bearing part is placed on the third support surface. A fitting gap is provided between the first support surface on the precast frame beam and the two prestressed concrete bearing beams that it mates with. The reinforcing connection structure is provided in the fitting gap and connects the two prestressed concrete bearing beams.

[0008] Furthermore, the reinforced connection structure includes mutually symmetrical Z-shaped plates, with the two Z-shaped plates respectively connecting the precast frame beam and the prestressed concrete bearing beams on both sides.

[0009] Furthermore, the Z-shaped plate includes a first connecting part, a second connecting part, and a third connecting part from top to bottom. The Z-shaped plate is a metal plate. The first connecting part and the third connecting part are parallel to each other. The first connecting part is bonded to the upper surface of the prestressed concrete bearing beam plate with foam adhesive. The third connecting part is bonded to the first support surface on the precast frame beam with foam adhesive.

[0010] Furthermore, a connecting plate is provided between the two Z-shaped plates. The vertical projection of the connecting plate is an inverted isosceles trapezoidal structure. The connecting plate is provided with a first mating surface and a second mating surface that are symmetrical to each other. The first mating surface and the second mating surface are respectively mated to the second connecting part of the two Z-shaped plates that are arranged opposite to each other, and the inclination of the two surfaces is the same.

[0011] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: This utility model improves the structure and adds functional components at the joint between the prestressed concrete bearing beam and the precast frame beam in the existing support-free and formwork-free construction system, ensuring that the joint structure is more stable and achieves the effect of waterproofing and preventing leakage, thereby ensuring the stability of the overall structure and extending the service life of the overall structure. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall assembly structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 2 Enlarged view at point B in the middle; Figure 4 This is a schematic diagram of the prefabricated frame beam structure in this utility model; Figure 5 This is a schematic diagram of the prestressed concrete bearing beam-slab structure in this utility model. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] Please see Figures 1-5 This utility model provides a beam-slab joint connection structure, including a cast-in-place frame column 1, a precast frame beam 2, and a prestressed concrete bearing beam slab 3. The precast frame beam 2 is a long, rectangular column structure with an inverted T-shaped vertical projection, and the prestressed concrete bearing beam slab 3 is a long, rectangular slab structure with a π-shaped vertical projection. The cast-in-place frame column 1 is fixedly connected to the bottom surface of the precast frame beam 2. The precast frame beam 2 serves as an intermediate support, fixedly connected to the prestressed concrete bearing beam slab 3. A reinforcing connection structure is provided at the joint between the two prestressed concrete bearing beam slabs 3. The precast frame beam 2 is provided with a first support surface 21, a second support surface 22, and a third support surface 23 from top to bottom. The prestressed concrete bearing beam slab 3 includes a first bearing part 31 and a second bearing part 32. The first bearing part 31 and the second bearing part 32 are perpendicular to each other. The second bearing part 32 is placed on the third support surface 23. A fitting gap is provided between the first support surface 21 on the precast frame beam 2 and the two prestressed concrete bearing beam slabs 3 that cooperate with it. The reinforcing connection structure is provided in the fitting gap and connects the two prestressed concrete bearing beam slabs 3.

[0015] The reinforced connection structure includes two symmetrical Z-shaped plates 4. The two Z-shaped plates 4 are respectively connected to the precast frame beam 2 and the prestressed concrete bearing beam slabs 3 on both sides. The Z-shaped plates 4 include a first connecting part 41, a second connecting part 42 and a third connecting part 43 from top to bottom. The Z-shaped plates are metal plates. The first connecting part 41 and the third connecting part 43 are parallel to each other. The first connecting part 41 is bonded to the upper surface of the prestressed concrete bearing beam slab 3 by foam adhesive 6. The third connecting part 43 is bonded to the first support surface 21 on the precast frame beam 2 by foam adhesive 6.

[0016] A connecting plate 5 is provided between the two Z-shaped plates 4. The vertical projection of the connecting plate 5 is an inverted isosceles trapezoidal structure. The connecting plate 5 is provided with a first contact surface and a second contact surface 52 that are symmetrical to each other. The first contact surface and the second contact surface 52 are respectively in contact with the second connecting part 42 on the two Z-shaped plates 4 that are arranged opposite to each other, and the inclination of the two is the same.

[0017] After assembly, reinforced materials such as concrete can be filled into the groove formed by the Z-shaped plate 4 and the connecting plate 5.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A joint connection structure between beams and slabs, characterized in that: It includes cast-in-place frame columns, precast frame beams, and prestressed concrete bearing beams. The precast frame beams are long, rectangular column structures with an inverted T-shaped vertical projection, and the prestressed concrete bearing beams are long, rectangular slab structures with a π-shaped vertical projection. The cast-in-place frame columns are fixedly connected to the bottom surfaces of the precast frame beams. The precast frame beams serve as intermediate support parts and are fixedly connected to the prestressed concrete bearing beams. A reinforcing connection structure is provided at the joint between the two prestressed concrete bearing beams.

2. The beam-slab joint connection structure according to claim 1, characterized in that: The precast frame beam is provided with a first support surface, a second support surface, and a third support surface from top to bottom. The prestressed concrete bearing beam includes a first bearing part and a second bearing part. The first bearing part and the second bearing part are perpendicular to each other. The second bearing part is placed on the third support surface. A fitting gap is provided between the first support surface on the precast frame beam and the two prestressed concrete bearing beams that it cooperates with. The reinforcing connection structure is set in the fitting gap and connects the two prestressed concrete bearing beams.

3. The beam-slab joint connection structure according to claim 2, characterized in that: The reinforced connection structure includes mutually symmetrical Z-shaped plates, with the two Z-shaped plates respectively connecting the precast frame beam and the prestressed concrete bearing beams on both sides.

4. The beam-slab joint connection structure according to claim 3, characterized in that: The Z-shaped plate includes a first connecting part, a second connecting part, and a third connecting part from top to bottom. The Z-shaped plate is a metal plate. The first connecting part and the third connecting part are parallel to each other. The first connecting part is bonded to the upper surface of the prestressed concrete bearing beam plate with foam adhesive. The third connecting part is bonded to the first support surface on the precast frame beam with foam adhesive.

5. The beam-slab joint connection structure according to claim 4, characterized in that: A connecting plate is provided between the two Z-shaped plates. The vertical projection of the connecting plate is an inverted isosceles trapezoidal structure. The connecting plate is provided with a first mating surface and a second mating surface that are symmetrical to each other. The first mating surface and the second mating surface are respectively mated to the second connecting part of the two Z-shaped plates that are arranged opposite to each other, and the inclination of the two surfaces is the same.

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