Support-free mounting device for fabricated beam-column joint

Abstract

The utility model discloses a support-free installation device of an assembly type beam column joint, which is embraced and fixed on the periphery of the top of a prefabricated column so as to support the end part of a prefabricated beam from the bottom; the device comprises a hoop and a height adjusting piece, the hoop is formed by laterally enclosing a plurality of sub enclosing pieces; the at least two sub enclosure pieces are detachably connected with each other; the sub enclosure piece is of a rigid structure and is provided with an inner wall and a first plane; the inner wall is attached to the surface of the prefabricated column; the first plane is used for supporting a height adjusting piece; the top of the height adjusting piece abuts against the precast beam so as to adjust the installation elevation of the precast beam. When the sub enclosing pieces are enclosed, the first planes extend along the peripheries of the prefabricated columns, and the extending direction envelops the erecting direction of all the prefabricated beams at the beam-column joints. The device is detachably fixed to the surface of the prefabricated column in a non-intrusive mode, and the prefabricated beams in all directions at the assembly type beam-column joint are supported at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled building construction, in particular to a support-free installation device for an assembled beam-column node. Background Art

[0002] During the actual construction of prefabricated buildings, prefabricated beams are often installed using scaffolding. This method has numerous drawbacks: it requires a large amount of scaffolding materials, resulting in high construction costs; the scaffolding requires repeated erection and dismantling, resulting in a long construction period and difficulty in controlling construction quality; the scaffolding is high, posing significant safety hazards; and the noise and dust generated during construction adversely impact the surrounding environment.

[0003] Therefore, the support-free system for prefabricated buildings has emerged as an innovative construction technology. It aims to improve construction efficiency, reduce construction costs, and enhance overall building performance. The core of this support-free system lies in optimizing structural design and construction processes, enabling the construction of prefabricated components and joints without the need for additional supports.

[0004] At present, technicians in related fields have disclosed a variety of prefabricated beam-column node support-free installation devices or construction systems. For example, Chinese patent CN216713332U provides a prefabricated beam-column detachable clamp steel corbel support-free system, which adopts a non-invasive method to detachably fix the clamp steel corbel to the surface of the prefabricated column, and provides a support plate and bolt parts on the top of the corbel to support and adjust the height of the prefabricated beam. This support-free system does not weaken the cross-sectional strength of the component, and has a stable structure and is easy to disassemble and assemble. However, it still has the following shortcomings: the clamp steel corbel can only support prefabricated beams in the same straight line direction, and cannot simultaneously assist in the support-free installation of prefabricated beams in multiple directions, so it still cannot fully meet construction needs. Utility Model Content

[0005] The main technical problem to be solved by the present invention is to provide a support-free installation device for assembled beam-column nodes, which can be detachably fixed to the surface of the prefabricated column in a non-invasive manner, thereby achieving simultaneous support of prefabricated beams in all directions at the beam-column node.

[0006] In order to solve the above technical problems, the utility model provides a support-free installation device for an assembled beam-column node, wherein the device is embraced and fixed to the top periphery of the prefabricated column to support the end of the prefabricated beam from the bottom;

[0007] The device includes a hoop and a height adjustment member; the hoop is formed by laterally enclosing a plurality of sub-enclosing members; at least two of the sub-enclosing members are detachably connected;

[0008] The sub-enclosure is a rigid structure having an inner wall and a first plane; the inner wall is attached to the surface of the prefabricated column; the first plane is used to support the height adjustment member; the top of the height adjustment member abuts the prefabricated beam to adjust the installation elevation of the prefabricated beam;

[0009] When the sub-enclosing parts are enclosed, a plurality of the first planes extend along the outer circumference of the prefabricated column, and the extension direction encompasses the erection direction of each prefabricated beam at the beam-column node.

[0010] In a preferred embodiment: when the sub-enclosures are tightly connected, the clamp is constructed in the middle to form a clearance cavity that matches the cross-sectional shape of the prefabricated column; the cross-sectional size of the clearance cavity is not larger than the cross-sectional size of the prefabricated column.

[0011] In a preferred embodiment, the sub-enclosure is a box-lattice structure formed by fixing a plurality of plates, including a web and a transverse top plate; the web is arranged on the side of the sub-enclosure close to the prefabricated column, and the plate surface facing the prefabricated column is the inner wall;

[0012] The transverse top plate is vertically fixed to the side of the web away from the precast column; the plate surface of the transverse top plate facing the precast beam is the first plane.

[0013] In a preferred embodiment: the sub-enclosure is provided with a connecting plate at the side end; the connecting plates at the side ends of two adjacent sub-enclosures are arranged relative to each other and are detachably connected through a connecting piece.

[0014] In a preferred embodiment, the connecting member is a bolt assembly; the bolt assembly is also used to adjust the relative distance between the connecting plates.

[0015] In a preferred embodiment, the sub-enclosure further comprises a plurality of longitudinal ribs; the longitudinal ribs extend along the height direction of the prefabricated column, and the tops thereof are vertically fixed to the transverse top plates, and the sides thereof are fixed to the web plates;

[0016] A plurality of longitudinal ribs are arranged at intervals along the extending direction of the transverse top plate.

[0017] In a preferred embodiment: the sub-enclosure further includes a transverse rib plate; the extension direction of the transverse rib plate is the same as that of the transverse top plate, and the transverse rib plate is arranged in a "well" shape with the longitudinal rib plate.

[0018] In a preferred embodiment, a layer of rubber pad is provided on the inner wall surface.

[0019] In a preferred embodiment, the height adjusting member is a sand barrel.

[0020] In a preferred embodiment, the material of the clamp is steel.

[0021] Compared with the existing technology, the technical solution of the utility model has the following beneficial effects:

[0022] The support-free installation device for the assembled beam-column node provided by the present invention has the following characteristics: the first plane extends along the outer periphery of the prefabricated column, and the extension direction envelops the erection direction of each prefabricated beam at the beam-column node, thereby allowing the sand cylinder to be supported in various directions on the top of the hoop to achieve all-round support for the prefabricated beam.

[0023] The support-free installation device for the assembled beam-column node provided by the utility model is provided with a layer of rubber pad on the inner wall surface of the clamp, which improves the friction and gripping force between the web and the prefabricated column, so that the clamp is more firmly fixed to the surface of the prefabricated column.

[0024] The support-free installation device for the assembled beam-column node provided by the utility model is provided with a plurality of longitudinal ribs and transverse ribs of the sub-enclosure, which are arranged in a "well" shape, not only improving the bearing performance of the clamp, but also converting part of the upper load into the clamping force of the clamp on the prefabricated column. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of the support-free installation device in an embodiment of the present utility model installed at a beam-column node;

[0026] Figure 2 This is a three-dimensional schematic diagram of the support-free installation device described in an embodiment of the present utility model;

[0027] Figure 3 This is a vertical view of the clamp described in the embodiment of the utility model;

[0028] Figure 4 It is a top view of the clamp described in the embodiment of the utility model.

[0029] Markings in the figure are: 1-hoop, 11-sub-enclosure, 111-web, 1110-inner wall, 112-connecting plate, 113-transverse top plate, 1130-first plane, 114-longitudinal rib, 115-transverse rib, 12-bolt assembly, 13-rubber pad, 14-allowance cavity, 2-sand cylinder, 3-precast column, 4-precast beam, 5-composite plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] like Figures 1 to 4 , an embodiment of the utility model provides a support-free installation device for an assembled beam-column node, comprising a hoop 1 and a height adjustment member. The hoop 1 is formed by laterally enclosing at least two sub-enclosure members 11, and two adjacent sub-enclosure members 11 are detachably connected by connecting members. In this embodiment, the height adjustment member is a steel sand barrel 2; the connecting member is a bolt assembly 12. In general, a number of the sub-enclosure members 11 are enclosed at the outer periphery of the top of the prefabricated column 3 and are connected in pairs laterally by the bolt assembly 12. The bolt assembly 12 fixes the hoop 1 to the surface of the prefabricated column 3 by retracting and locking the adjacent sub-enclosure members 11. The sand barrel 2 is supported on the top of the hoop 1 to support the end of the prefabricated beam 4 from the bottom. The sand barrel 2 can adjust its own height so that the prefabricated beam 4 can be installed at the design elevation.

[0034] like Figures 2-4 As shown, the sub-enclosure 11 is a box-lattice structure made of several welded steel plates or sheets, which has high rigidity while being lightweight. The sub-enclosure 11 includes a web 111, a connecting plate 112, a transverse top plate 113, transverse ribs 115 and longitudinal ribs 114.

[0035] The web 111 is arranged on the side of the sub-enclosure 11 close to the prefabricated column 3, and the plate surface facing the prefabricated column 3 is defined as the inner wall 1110. The inner wall 1110 is attached to the surface of the prefabricated column 3, providing an effective surface for the hoop 1 to embrace the prefabricated column 3. Figure 4As shown, when the hoop 1 is not sleeved on the surface of the prefabricated column 3, the several sub-enclosure members 11 are tightly spliced ​​in pairs. At this time, several groups of the webs 111 construct a rectangular or arc-shaped clearance cavity 14 in the middle of the hoop 1. The cross-sectional type of the clearance cavity 14 matches the prefabricated column 3, and the cross-sectional size is not larger than the cross-sectional size of the prefabricated column 3. Otherwise, when the hoop 1 is sleeved on the surface of the prefabricated column 3, there is still a gap between it and the prefabricated column 3 even in the tightest state, and it cannot be directly fixed on the surface of the prefabricated column 3. Preferably, for square prefabricated columns 3, in order to make the device provided in this embodiment have a wide range of applicability, one hoop 1 is composed of four sub-enclosure members 11. In this way, the hoop 1 is provided with a connection on each column surface of the prefabricated column 3 to flexibly adjust the enclosure size according to the column width on each side, thereby achieving precise fit with the prefabricated column 3.

[0036] In this embodiment, a layer of rubber pad 13 is provided on the surface of the inner wall 1110 to increase the friction between the web 111 and the prefabricated column 3. In other embodiments, the rubber pad 13 can be replaced by materials such as sponge, coarse cloth, and fiberglass mesh to also increase friction.

[0037] like Figure 2 As shown, the connecting plate 112 is arranged at the side end of the sub-enclosure 11, extending along the height direction of the prefabricated column 3, and the side is welded to the web 111. The connecting plates 112 at the side ends of two adjacent sub-enclosures 11 are arranged relative to each other, and are detachably connected by the bolt assembly 12. When the clamp 1 is sleeved on the surface of the prefabricated column 3, the bolt assembly 12 can tighten the two relative connecting plates 112 to make the sub-enclosure 11 gradually move closer and embrace, and fit tightly against the prefabricated column 3. The locking effect of the bolt assembly 12, combined with the damping effect of the rubber pad 13, can firmly fix the clamp 1 on the surface of the prefabricated column 3.

[0038] The transverse top plate 113 is vertically fixed to the side of the web 111 facing away from the precast column 3. It is understood that when the clamp 1 is engaged with the surface of the precast column 3, the transverse top plate 113 is arranged horizontally. The surface of the transverse top plate 113 facing the precast beam 4 is defined as the first plane 1130. The sand cylinder 2 is supported on the first plane 1130, with its top abutting the precast beam 4. The sand cylinder 2 adjusts its supporting height by adjusting the internal sand content, thereby adjusting the precast beam 4 to the designed elevation.

[0039] In prefabricated buildings, a beam-column joint is usually equipped with prefabricated beams 4 in multiple directions, which requires that the top of the hoop 1 can support the sand cylinder 2 in all directions to simultaneously support the prefabricated beams 4 in different directions. Figures 1-2As shown, in the device provided by this embodiment, after the sub-enclosing members 11 enclose the hoop 1 on the surface of the precast column 3, several transverse top plates 113 are spliced ​​and extended along the outer perimeter of the precast column 3, with the extension direction encompassing the erection direction of the precast beams 4 at the beam-column node. This way, the top of the hoop 1 has sufficient space in all directions to support the sand cylinder 2, achieving all-round support for the precast beam 4.

[0040] The longitudinal ribs 114 extend along the height direction of the prefabricated column 3, and several longitudinal ribs 114 are spaced apart along the extension direction of the transverse top plate 113. The top of the longitudinal ribs 114 is vertically welded to the transverse top plate 113, and the side is welded to the web 111, so that part of the load on the transverse top plate 113 is transferred to the web 111, which not only improves the bearing capacity of the transverse top plate 113, but also squeezes the web 111 from the side toward the prefabricated column 3, thereby improving the holding force of the clamp 1. The sub-enclosure 11 also includes several transverse ribs 115. The extension direction of the transverse ribs 115 is the same as that of the transverse top plate 113, and is arranged in a "well" shape with the longitudinal ribs 114, further improving the rigidity of the clamp 1.

[0041] like Figure 1 As shown, the technical features of the device are further explained in combination with the brief support-free installation steps of the beam-column node. The installation steps include:

[0042] Step 1: According to the design drawing, accurately measure and mark the installation position of the clamp 1 on the top of the prefabricated column 3.

[0043] Step 2: Sleeve several of the sub-enclosing parts 11 onto the surface of the prefabricated column 3, then install and tighten the bolt assembly 12 to enclose the sub-enclosing parts 11 to form the clamp 1. Continue tightening the bolt assembly 12 to ensure that the clamp 1 is tightly attached to the surface of the prefabricated column 3.

[0044] Step 3: After installation, check the tightness and installation position of the clamp 1. If there is any looseness or deviation, adjust it.

[0045] Step 4: Place the sand barrel 2 on the horizontal top plate 113 of the clamp 1. When placing the sand barrel 2, ensure that the position of the sand barrel 2 is accurate and stable, and the sand inside is fully filled.

[0046] Step 5: Use a crane to lift the precast beam 4 onto the sand drum 2, adjust the height of the sand drum 2 according to the design elevation, and ensure the accurate installation of the precast beam 4. Fix the precast beam 4 according to the design requirements.

[0047] Step 6: Hoist the composite slab 5 on top of the precast beam 4 according to the design drawings, and lay the steel mesh on top of the composite slab 5.

[0048] Step 7: Set up formwork, pour concrete into the beam-column joints and perform curing.

[0049] Step 8: After the concrete reaches the required strength, put down the sand cylinder 2 and then remove the clamp 1 to complete the installation.

[0050] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any technical equivalent transformation made using the contents of the present invention specification falls within the protection scope of the present invention.

Claims

1. A support-free installation device for an assembled beam-column joint, characterized in that: The device is mounted and fixed to the top periphery of the precast column to support the end of the precast beam from the bottom; The device includes a hoop and a height adjustment member; the hoop is formed by laterally enclosing a plurality of sub-enclosing members; at least two of the sub-enclosing members are detachably connected; The sub-enclosure is a rigid structure having an inner wall and a first plane; the inner wall is attached to the surface of the prefabricated column; the first plane is used to support the height adjustment member; the top of the height adjustment member abuts the prefabricated beam to adjust the installation elevation of the prefabricated beam; When the sub-enclosing parts are enclosed, a plurality of the first planes extend along the outer circumference of the prefabricated column, and the extension direction encompasses the erection direction of each prefabricated beam at the beam-column node.

2. The support-free installation device for an assembled beam-column joint according to claim 1, characterized in that: When the sub-enclosures are tightly connected, the hoop is configured in the middle to form a clearance cavity that matches the cross-sectional shape of the prefabricated column; the cross-sectional size of the clearance cavity is not larger than the cross-sectional size of the prefabricated column.

3. A support-free installation device for an assembled beam-column joint according to any one of claims 1 or 2, characterized in that: The sub-enclosure is a box-lattice structure formed by fixing a plurality of plates, including a web and a transverse top plate; the web is arranged on the side of the sub-enclosure close to the prefabricated column, and the plate surface facing the prefabricated column is the inner wall; The transverse top plate is vertically fixed to the side of the web away from the precast column; the plate surface of the transverse top plate facing the precast beam is the first plane.

4. The support-free installation device for an assembled beam-column joint according to claim 1, characterized in that: The sub-enclosures are provided with connecting plates at their side ends; the connecting plates at the side ends of two adjacent sub-enclosures are arranged relative to each other and are detachably connected via connecting pieces.

5. The support-free installation device for an assembled beam-column joint according to claim 4, characterized in that: The connecting member is a bolt assembly; the bolt assembly is also used to adjust the relative distance between the connecting plates.

6. The support-free installation device for an assembled beam-column joint according to claim 3, characterized in that: The sub-enclosure also includes a plurality of longitudinal ribs; the longitudinal ribs extend along the height direction of the prefabricated column, and the tops are vertically fixed to the transverse top plates, and the sides are fixed to the webs; A plurality of longitudinal ribs are arranged at intervals along the extending direction of the transverse top plate.

7. The support-free installation device for an assembled beam-column joint according to claim 6, characterized in that: The sub-enclosure also includes a transverse rib plate; the extension direction of the transverse rib plate is the same as that of the transverse top plate, and the transverse rib plate is arranged in a "well" shape with the longitudinal rib plate.

8. The support-free installation device for an assembled beam-column joint according to claim 1, characterized in that: A layer of rubber pad is arranged on the surface of the inner wall.

9. The support-free installation device for an assembled beam-column joint according to claim 1, characterized in that: The height adjusting member is a sand cylinder.

10. The support-free installation device for an assembled beam-column joint according to claim 1, characterized in that: The material of the clamp is steel.

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