Connecting structure of full-assembly type vertical component and beam

Abstract

The utility model relates to the technical field of assembly type buildings, and discloses a full assembly type vertical member and beam connecting structure which comprises a vertical member and a precast beam, the vertical member is a reinforced concrete column with a wing plate, the precast beam is of a reinforced concrete structure, the end of the precast beam is in lap joint with the top of the vertical member, and the end of the precast beam is in lap joint with the top of the vertical member. A post-cast strip is arranged between the vertical component and the precast beam; a plurality of rows of connecting steel bars are arranged in the precast beam in the height direction, the connecting steel bars, located on the upper layer and the lower layer of the precast beam, of the precast beam extend outwards in the length direction of the precast beam and extend into the post-cast strip, the connecting steel bars are bent in the thickness direction of the precast beam, and the connecting steel bars extending out of the precast beam are in a linear shape. And the post-cast strip is filled with concrete. During practical application, the problems of low construction efficiency and high construction safety risk during beam construction in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled buildings, and in particular to a connection structure of fully assembled vertical components and beams. Background Art

[0002] In existing building construction, since beams are related to the load-bearing capacity and stability of the entire building, the construction of beams still adopts the method of on-site steel bar binding, formwork support, and concrete pouring. In order to ensure the stability of the connection between the beams, all beams in the same straight line direction are usually cast as a whole. As a result, the steel bars of all beams in the same straight line direction need to be tied and the formwork within the entire length range needs to be completed before concrete pouring can be carried out, which greatly reduces construction efficiency. In addition, when constructing casting formwork and steel bar binding on shear walls or columns, it is easy to work near the edges, resulting in high safety risks.

[0003] Therefore, the applicant has developed a new prefabricated building system, in which columns, shear walls, and beams are all prefabricated components, which only need to be assembled on site. A connection structure between fully prefabricated vertical components and beams is specifically provided to solve the above-mentioned problems of low construction efficiency and high construction safety risks. Utility Model Content

[0004] The utility model is intended to provide a fully assembled vertical component and beam connection structure, which solves the problems of low construction efficiency and high construction safety risk in the existing technology during the construction of beams.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a fully assembled vertical component and beam connection structure, comprising a vertical component and a precast beam, wherein the vertical component is a reinforced concrete column with a wing plate, and the precast beam is a reinforced concrete structure. The end of the precast beam is overlapped on the top of the vertical component, and a post-cast strip is provided between the vertical component and the precast beam; a plurality of rows of connecting steel bars are provided in the height direction of the precast beam, and the connecting steel bars of the upper and lower layers of the precast beam extend outward along the length direction thereof and extend into the post-cast strip, the connecting steel bars are bent along the thickness direction of the precast beam, and the connecting steel bars extending out of the precast beam are straight; the post-cast strip is filled with concrete.

[0006] The principles and advantages of this solution are:

[0007] 1. In this solution, both vertical components and precast beams are prefabricated in the factory. During on-site construction, only the components need to be positioned and assembled. There is no need for a large amount of reinforcement arrangement, formwork support, and formwork removal as in the existing technology. This greatly reduces on-site workload, improves on-site construction efficiency, shortens the construction period, and effectively reduces the safety risks of workers working in the air, thereby improving the safety and civilized level of construction.

[0008] 2. The vertical components in this scheme are reinforced concrete columns with wing plates. Compared with the existing square structure columns, the wing plates make the vertical components have a larger bearing area and stronger load-bearing performance.

[0009] 3. In this solution, the connecting steel bars of the upper and lower layers of the precast beams extend outward and are bent along the thickness direction of the beams, and the connecting steel bars extending out of the precast beams are straight. When multiple beams intersect, the connecting steel bars extending out of each precast beam are bent at different angles along their thickness direction, so that the connecting steel bars are staggered with each other to reduce interference problems, thereby reducing the difficulty of assembly between components. The precast beams can be lowered simply and quickly, effectively improving construction efficiency and shortening the construction period. At the same time, the connecting steel bars at the ends of each precast beam are staggered and tied with the connecting steel bars of the vertical components, so that the steel bar structure at the connection nodes is more evenly distributed, the overall connection structure has higher strength and rigidity, and the connection between the vertical components and the precast beams is more stable.

[0010] Furthermore, the bent portion of the connecting steel bar is located inside the prefabricated beam.

[0011] The above arrangement hides the bent portion inside the precast beam to avoid interference with the connecting steel bars of other precast beams or other components when multiple beams intersect, thereby avoiding difficulties in lowering the precast beams.

[0012] Furthermore, an anchor plate is provided at the free end of the connecting steel bar extending outside the prefabricated beam.

[0013] In the above-mentioned setting, the anchor plate enhances the connection strength between the connecting steel bars and the concrete in the post-cast zone. There is no need to bend the connecting steel bars outside the precast beam as in the existing technology, which reduces the amount of steel bars used at the end of the precast beam. It also effectively avoids collision and interference between the steel bars when assembling the precast beam with other components, effectively improving construction efficiency.

[0014] Furthermore, an adjustable support device is detachably connected to the upper side of the vertical member, and the adjustable support device includes a fixed plate and a support unit. The fixed plate is provided with two connecting holes and is welded with a connecting piece, and a mounting hole is vertically provided on the connecting piece. The support unit includes a support plate and a support rod welded to the bottom of the support plate, and an adjusting nut is threaded on the support rod, and the support rod is inserted into the mounting hole.

[0015] The above arrangement means that the prefabricated beams do not need to be supported by a full-height scaffolding as in the prior art during installation, thereby reducing the construction process of scaffolding erection and disassembly, greatly improving construction efficiency; and when the horizontal height of the prefabricated beams needs to be adjusted, the adjustment nut can be screwed with a wrench to meet the on-site support height adjustment requirements, and the construction flexibility is higher.

[0016] Furthermore, a bolt sleeve for fixing the adjustable supporting device is pre-embedded in the upper part of the side surface of the vertical member.

[0017] The adjustable support device is detachably fixed to the vertical member by means of bolts and bolt sleeves. The operation is simple and quick, which greatly improves the construction efficiency. The bolt connection makes it easy to disassemble and reuse the adjustable support device after the prefabricated beam is installed, thereby reducing construction costs.

[0018] Furthermore, the tops of the vertical members and precast beams are provided with lifting grooves, in which lifting parts are embedded, and the tops of the lifting parts are located in the lifting grooves and are lower than the top surfaces of the vertical members or precast beams.

[0019] Compared with the existing technology in which the lifting parts protrude from the surface of the component, in the above-mentioned setting, there is no need to cut off the lifting parts on the surface of the component after the precast beams and vertical components are lifted, which reduces the construction process. At the same time, when pouring concrete, the lifting groove recessed in the top surface of the component enhances the connection strength between the cast-in-place concrete layer and the precast beams and vertical components.

[0020] Furthermore, the bottom of the prefabricated beam is provided with an installation groove.

[0021] The above arrangement enables the installation groove at the bottom of the precast beam to be engaged with the installation protrusion at the top of the sandwich wall during installation of the precast beam and the sandwich wall, thereby achieving rapid installation and positioning, reducing the amount of adjustment, and accelerating the construction progress; at the same time, the installation notch and the installation protrusion cooperate to increase the connection strength between the precast beam and the sandwich wall, making the overall structure more stable.

[0022] Furthermore, the free ends of the connecting steel bars of the vertical members pass upward through the post-cast strip.

[0023] The above arrangement eliminates the need to tie reinforcement bars when installing vertical components and upper components. Concrete can be poured directly at the nodes between the upper and lower components, shortening the on-site construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0025] Figure 2 This is a schematic structural diagram of the vertical component in an embodiment of the present utility model.

[0026] Figure 3 for Figure 2 Enlarged view of part A.

[0027] Figure 4 It is a top view of the prefabricated beam in the embodiment of the present utility model.

[0028] Figure 5 for Figure 4 Middle along BB view. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The reference numerals in the drawings of the specification include: vertical component 1, precast beam 2, connecting steel bar 3, post-cast strip 4, bolt sleeve 5, lifting groove 6, lifting part 7, installation tongue and groove 8, anchor plate 9.

[0031] The basic situation of the embodiment is as shown in the attached Figure 1-5 As shown: A fully assembled vertical component and beam connection structure, including a vertical component 1 and one or more precast beams 2, the vertical component 1 is a reinforced concrete column with a wing plate, the precast beam 2 is a reinforced concrete structure, the end of the precast beam 2 is overlapped on the top of the vertical component 1, and a post-cast strip 4 is provided between the vertical component 1 and the precast beam 2. The connecting steel bars 3 of the vertical component 1 in the vertical direction extend upward and pass through the post-cast strip 4. A plurality of rows of connecting steel bars 3 are provided in the precast beam 2 along its height direction, wherein the ends of the connecting steel bars 3 located in the upper and lower layers extend outward and extend into the post-cast strip 4 to be staggered and tied with the connecting steel bars 3 of the vertical component 1, and the post-cast strip 4 is filled with concrete, which is slightly expanded fine stone concrete. The concrete and the connecting steel bars 3 are connected and fixed into a whole to realize the installation connection between the vertical component 1 and the precast beam 2. Among them, the connecting steel bars 3 of the upper and lower layers of the precast beam 2 are horizontally bent along the thickness direction of the precast beam 2 and the bent portion is hidden in the precast beam 2. In this way, at the intersection of multiple beams, the bent portion will not interfere with the connecting steel bars 3 of other precast beams 2 and vertical components 1. Secondly, by setting the bending angles of the connecting steel bars 3 extending from each precast beam 2 to be different along their thickness direction, the connecting steel bars 3 are staggered with each other to reduce the interference problem. At the same time, the extending connecting steel bars 3 are set into a straight line and anchor plates 9 are installed at their ends. In this way, the amount of steel bars used at the intersection of multiple beams is reduced, and the problem of interference caused by excessive steel bars affecting the lowering of the precast beam 2 is avoided.

[0032] The tops of the precast beam 2 and the vertical component 1 are both provided with a plurality of hoisting grooves 6, which are preferably hemispherical in shape, and a hoisting member 7 is embedded in the hoisting grooves 6. The hoisting member 7 as a whole is a structure that is large at both ends and small in the middle. Specifically, the top of the hoisting member 7 is a disc or a hemispherical body, and the bottom of the hoisting member 7 is a disc, or it can be formed by a plurality of steel bars equidistantly distributed. The top of the hoisting member 7 is located in the hoisting groove 6 and does not exceed the upper surface of the precast beam 2 or the vertical component 1. Through the above structure, compared with the prior art in which the hoisting member 7 protrudes from the component surface, this solution does not need to remove the hoisting member 7 protruding from the component surface after the hoisting is completed, thereby reducing the construction process. At the same time, when pouring concrete in situ, the connection strength between the cast-in-situ concrete layer and the component is enhanced due to the concave hoisting grooves 6 and the top structure of the hoisting member 7 in the form of a disc or a hemispherical body.

[0033] A bolt sleeve 5 is embedded in the upper side of the vertical member 1, and an adjustable support device independently developed by the applicant is bolted to it via the bolt sleeve 5. The adjustable support device comprises a fixing plate and a support unit. The fixing plate is provided with two connection holes corresponding to the bolt sleeves 5 and welded with a connector. The connector has a vertical mounting hole. The support unit comprises a support plate and a support rod welded to the bottom of the support plate. The support rod is threaded with an adjustment nut and inserted into the mounting hole. When the precast beam 2 is installed, the adjustable support device is fixed to the vertical member 1 by bolts passing through the connection holes. The precast beam 2 is then placed on the adjustable support device for support. When the horizontal height of the precast beam 2 needs to be adjusted, the adjustment nut is tightened with a wrench. This eliminates the need to erect a scaffold to support the precast beam 2, thereby reducing the construction process of scaffolding erection and disassembly, greatly improving construction efficiency. At the same time, after the construction of the precast floor beam is completed, the adjustable support device can be removed from the bolt sleeve 5 and reused.

[0034] The bottom of the precast beam 2 is provided with a mounting groove 8, which is 30 mm deep. Inserting the raised portion of the sandwich panel into the mounting groove 8 not only helps position the sandwich wall during construction, but also improves the stability of the connection. The mounting groove 8 is a trapezoidal shape with an outward-flaring opening, which simplifies alignment during sandwich panel installation and enables quick and precise docking.

[0035] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A fully assembled vertical component and beam connection structure, characterized in that: It includes vertical components and precast beams. The vertical components are reinforced concrete columns with wing plates. The precast beams are reinforced concrete structures. The ends of the precast beams are overlapped on the tops of the vertical components. A post-cast strip is provided between the vertical components and the precast beams. The connecting steel bars in the vertical components extend upward and pass through the tops of the vertical components. The precast beams are provided with multiple rows of connecting steel bars along the height direction. The connecting steel bars of the upper and lower layers of the precast beams extend outward along their length direction and extend into the post-cast strips. The connecting steel bars are bent along the thickness direction of the precast beams, and the connecting steel bars extending out of the precast beams are in a straight line. The post-cast strips are filled with concrete.

2. The fully assembled vertical component and beam connection structure according to claim 1, characterized in that: The bent portion of the connecting steel bar is located inside the prefabricated beam.

3. The fully assembled vertical component and beam connection structure according to claim 2, characterized in that: The free end of the connecting steel bar extending out of the prefabricated beam is provided with an anchor plate.

4. The fully assembled vertical component and beam connection structure according to claim 3, characterized in that: An adjustable supporting device is detachably connected to the upper side of the vertical component, and the adjustable supporting device includes a fixing plate and a supporting unit. The fixing plate is provided with two connecting holes and a connecting piece is welded thereto. A mounting hole is vertically provided on the connecting piece. The supporting unit includes a supporting plate and a supporting rod welded to the bottom of the supporting plate. An adjusting nut is threadedly connected to the supporting rod, and the supporting rod is inserted into the mounting hole.

5. The fully assembled vertical component and beam connection structure according to claim 4, characterized in that: A bolt sleeve for fixing the adjustable supporting device is pre-embedded in the upper part of the side surface of the vertical component.

6. The fully assembled vertical component and beam connection structure according to claim 5, characterized in that: The tops of the vertical members and precast beams are both provided with hanging grooves, in which hanging parts are buried, and the tops of the hanging parts are located in the hanging grooves and are lower than the top surfaces of the vertical members or precast beams.

7. The fully assembled vertical component and beam connection structure according to claim 6, characterized in that: The bottom of the prefabricated beam is provided with an installation groove.

8. The fully assembled vertical component and beam connection structure according to claim 7, characterized in that: The free ends of the connecting steel bars of the vertical components pass upward through the post-cast strip.

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