Lattice column top joint facilitating penetrating installation of concrete supporting beam steel bars

Abstract

The utility model relates to the field of building construction, and discloses a latticed column top node convenient for a concrete support beam steel bar to pass through and install, which comprises four groups of latticed column angle steel, the outer walls of the four groups of latticed column angle steel are fixedly connected with latticed column batten plates, and the outer walls of the latticed column angle steel are fixedly connected with the latticed column batten plates. A steel plate A is fixedly connected to the top end of the outer wall of the latticed column angle steel, sliding blocks are fixedly connected to the two sides of the bottom end of a steel plate B, multiple sets of positioning holes are formed in the surface of the steel plate B, and a left set of guide grooves and a right set of guide grooves are formed in the inner wall of the top end of the steel plate A. In the utility model, the top elevation of the angle steel of the latticed column reaches the bottom position of the supporting beam, and then the steel plate with the anchor bars is welded and mounted at the upper part of the latticed column; through the treatment, the load-bearing steel bars in the supporting beam can smoothly penetrate through the upper node range of the latticed column and are firmly connected with the upper anchor bars of the steel plate, and therefore the node connection quality of the latticed column and the upper supporting beam is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a lattice column top node facilitating the installation of reinforced concrete support beam steel bars through it. Background Technique

[0002] A lattice column is a lattice column composed of components such as profiled steel or steel pipes. The lattice column mainly consists of limb members (such as angle steel, channel steel, steel pipes, etc.) and lacing bars (such as lacing plates or lacing bars). The limb members are usually arranged along the length direction of the column and are connected together by lacing bars to form a stable lattice structure.

[0003] In the engineering industry, deep foundation pit projects in fields such as building construction and subways often involve the construction of lattice columns to bear the load of the upper reinforced concrete support beam.

[0004] The existing lattice column top nodes have some deficiencies: Since the end of the lattice column is anchored in the support beam, the angle steel of the lattice column occupies part of the steel bar installation range of the support beam, resulting in the weakening of the bearing capacity of the node part, bringing certain safety risks to the foundation pit construction. Therefore, a lattice column top node facilitating the installation of reinforced concrete support beam steel bars through it is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a lattice column top node facilitating the installation of reinforced concrete support beam steel bars through it, aiming to improve the problem that the angle steel of the lattice column in the prior art occupies part of the steel bar installation range of the support beam, resulting in the weakening of the bearing capacity of the node part.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A lattice column top node facilitating the installation of reinforced concrete support beam steel bars through it, including lattice column angle steel. There are four groups of the lattice column angle steel, and lattice column lacing plates are fixedly connected to the outer walls of all four groups of the lattice column angle steel. A steel plate A is fixedly connected to the top of the outer wall of the lattice column angle steel. Four stiffeners are fixedly connected to the four corners at the bottom of the steel plate A. Anchor bars are arranged on the inner wall of the steel plate A. A strengthening component is arranged on the top of the outer wall of the steel plate A. The strengthening component includes a steel plate B;

[0007] Sliders are fixedly connected to both sides at the bottom of the steel plate B. Multiple positioning holes are formed on the surface of the steel plate B. Two guide grooves are formed on the inner wall at the top of the steel plate A.

[0008] As a further description of the above technical scheme:

[0009] There are four groups of the stiffeners, and each group has three. The ends of the two side stiffeners far away from the steel plate A are fixedly connected to the outer wall of the lattice column angle steel.

[0010] As a further description of the above technical solution:

[0011] One end of the middle stiffener away from steel plate A is fixedly connected to the outer wall of the lattice column batten plate at the top.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the anchor bar is in contact with the inner wall of the positioning hole.

[0014] As a further description of the above technical solution:

[0015] A plurality of placement holes are formed in the surface of the top of steel plate A, and the outer wall of the bottom end of the anchor bar is in contact with the inner wall of the placement hole.

[0016] As a further description of the above technical solution:

[0017] The bottom end of the outer wall of steel plate B is in contact with the top end of the outer wall of steel plate A.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the slider is slidably connected to the inner wall of the guide groove.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the lattice column angle steel does not extend into the supporting beam, and the elevation of the top of the lattice column angle steel reaches the bottom position of the supporting beam. Then, a steel plate with anchor bars is welded and installed on the upper part of the lattice column. In this way, the internal stressed steel bars of the supporting beam can smoothly pass through the upper node range of the lattice column and be firmly connected to the upper anchor bars of the steel plate, thus ensuring the connection quality of the lattice column and the upper supporting beam node.

[0022] 2. In the utility model, when the steel bars of the concrete supporting beam are installed through, steel plate B and steel plate A can conveniently position and support the anchor bars, making the installation of the steel bars more convenient. The construction workers can quickly insert the anchor bars into the appropriate positions and weld them for fixation, greatly improving the construction efficiency. At the same time, it also has a certain strengthening effect on the anchor bars, making the strength higher when formwork is supported on its surface later. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic three-dimensional structure diagram of the top node of a lattice column for facilitating the installation of steel bars of a concrete supporting beam proposed by the utility model;

[0024] Figure 2 It is a schematic bottom view structure diagram of the top node of a lattice column for facilitating the installation of steel bars of a concrete supporting beam proposed by the utility model;

[0025] Figure 3 Partial sectional view structure diagram of steel plate A and steel plate B of the top node of a lattice column facilitating the installation of steel bars of a concrete support beam proposed by the present utility model;

[0026] Legend description:

[0027] 1. Lattice column angle steel; 2. Lattice column batten plate; 3. Steel plate A; 4. Stiffening rib; 5. Reinforcing assembly; 51. Steel plate B; 52. Slide block; 53. Positioning hole; 6. Anchor bar; 7. Guide groove. Specific implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Refer to Figures 1-3 , an embodiment provided by the present utility model: a top node of a lattice column facilitating the installation of steel bars of a concrete support beam, including four groups of lattice column angle steels 1. The lattice column angle steels 1 are prior art. The lattice column angle steels 1 are integrally driven into the foundation pit to bear the load of the upper reinforced concrete support beam. After the main structure construction is completed, they usually need to be disassembled. The outer walls of the four groups of lattice column angle steels 1 are fixedly connected with lattice column batten plates 2. The connection manner between the lattice column batten plates 2 and the lattice column angle steels 1 is formed by welding. By arranging lattice column batten plates 2 between the four groups of lattice column angle steels 1, the overall stability of the lattice column angle steels 1 can be maintained.

[0030] Refer to Figure 2 and Figure 3, at the top of the outer wall of the lattice column angle steel 1, a steel plate A3 is fixedly connected. At the four corners of the bottom end of the steel plate A3, stiffeners 4 are fixedly connected. There are four groups of stiffeners 4, and each group has three. At both sides, one end of the stiffener 4 away from the steel plate A3 is fixedly connected to the outer wall of the lattice column angle steel 1, and at the middle, one end of the stiffener 4 away from the steel plate A3 is fixedly connected to the outer wall of the top lattice column batten plate 2. The connection methods among multiple groups of stiffeners 4, lattice column batten plates 2, steel plate A3 and lattice column angle steel 1 are all fixed by welding at the connected joints. And by setting the stiffeners 4, the joint stiffness is improved. On the inner wall of the steel plate A3, anchor bars 6 are provided. The anchor bars 6 are of the prior art. By winding steel wires on its surface, it can be connected to the support beam steel bars, thus facilitating the erection of formwork and pouring of support beam concrete. And the connection method between the anchor bars 6 and the steel plate A3 is also fixed by welding at the connected joints. On the surface of the top end of the steel plate A3, multiple groups of placement holes are opened. The outer wall of the bottom end of the anchor bar 6 is in contact with the inner wall of the placement hole. By contacting the bottom end of the inner wall of the anchor bar 6 and the steel plate A3, the welding stability of the whole anchor bar 6 can be increased, thus strengthening the rigidity of the anchor bar 6.

[0031] Refer to Figures 2-3 , at the top of the outer wall of the steel plate A3, a strengthening component 5 is provided. The strengthening component 5 includes a steel plate B51. The bottom end of the outer wall of the steel plate B51 is in contact with the top end of the outer wall of the steel plate A3. When inserting the anchor bar 6 into the inner wall of the placement hole of the steel plate A3, through the movement of the steel plate B51, certain stability can be provided for the support of the anchor bar 6 on the inner walls of the steel plate B51 and the steel plate A3, facilitating the control of its welding operation. At the same time, after the top ends of the steel plate B51 and the steel plate A3 move to support the anchor bar 6, their connected parts can be welded and fixed, thus increasing the stability after the steel plate A3 and the steel plate B51 support the anchor bar 6. At both sides of the bottom end of the steel plate B51, sliding blocks 52 are fixedly connected. The outer walls of the sliding blocks 52 are slidably connected to the inner walls of the guide grooves 7. By setting the sliding blocks 52, the steel plate B51 can only move back and forth on the inner wall of the steel plate A3. Multiple groups of positioning holes 53 are opened on the surface of the steel plate B51. The outer wall of the anchor bar 6 is in contact with the inner walls of the positioning holes 53. After positioning the anchor bar 6 on the inner wall of the steel plate A3 by the movement of the steel plate B51, the anchor bar 6 is welded and fixed to the steel plate A3, and at the same time, the anchor bar 6 can also be welded and fixed to the steel plate B51, thus increasing the overall stability of the anchor bar 6, making it possible to wind steel wires on its surface later to connect it to the support beam steel bars, thus facilitating the erection of formwork and pouring of support beam concrete, and the overall stability is better. On the inner wall of the top end of the steel plate A3, two groups of left and right guide grooves 7 are opened.

[0032] Working principle: There are four groups of lattice column angle steels 1, which are integrally driven into the foundation pit to bear the load of the upper reinforced concrete support beam. They usually need to be disassembled after the main structure construction is completed. The connection method between the lattice column batten plates 2 and the lattice column angle steels 1 is composed by welding. By setting the lattice column batten plates 2 between the four groups of lattice column angle steels 1, the overall stability of the lattice column angle steels 1 can be maintained.

[0033] The connection methods between multiple groups of stiffeners 4, lattice column batten plates 2, steel plate A3 and lattice column angle steels 1 are all fixed by welding at the connected joints. Setting the stiffeners 4 can improve the joint stiffness. The connection method between the anchor bars 6 and the steel plate A3 is fixed by welding at the connected joints. Multiple groups of placement holes are opened on the surface of the top end of the steel plate A3. The outer wall of the bottom end of the anchor bar 6 is in contact with the inner wall of the placement hole. Through this contact method, the welding stability of the overall anchor bar 6 can be increased, so that the rigidity of the anchor bar 6 is strengthened. The anchor bar 6 can be connected to the support beam steel bars through its surface, which is convenient for formwork support and pouring of support beam concrete.

[0034] When inserting the anchor bar 6 into the inner wall of the placement hole of the steel plate A3, through the movement of the steel plate B51, certain stability can be provided for the support of the anchor bar 6 on the inner walls of the steel plate B51 and the steel plate A3, which is convenient for controlling its welding operation. At the same time, after the top ends of the steel plate B51 and the steel plate A3 move to support the anchor bar 6, the connected parts can be welded and fixed, so as to increase the stability after the steel plate A3 and the steel plate B51 support the anchor bar 6.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A lattice column top node for facilitating the installation of reinforcement bars for concrete support beams, comprising a lattice column angle steel (1), characterized in that: The lattice column angle steel (1) is provided in four groups, the outer walls of the four groups of lattice column angle steels (1) are fixedly connected to the lattice column tie plates (2), the top of the outer wall of the lattice column angle steel (1) is fixedly connected to the steel plate A (3), the four corners of the bottom end of the steel plate A (3) are fixedly connected to the stiffening ribs (4), the inner wall of the steel plate A (3) is provided with anchor bars (6), and the top of the outer wall of the steel plate A (3) is provided with a reinforcement assembly (5), and the reinforcement assembly (5) includes a steel plate B (51); Slide blocks (52) are fixedly connected to both sides of the bottom end of the steel plate B (51), a plurality of positioning holes (53) are provided on the surface of the steel plate B (51), and two left and right guide grooves (7) are provided on the inner wall of the top end of the steel plate A (3).

2. A lattice column top node for facilitating the installation of reinforcement bars for concrete support beams according to claim 1, characterized in that: Four groups of stiffening ribs (4) are provided, with three stiffening ribs in each group. One end of the stiffening ribs (4) on both sides away from the steel plate A (3) is fixedly connected to the outer wall of the lattice column angle steel (1).

3. A lattice column top node for facilitating the installation of reinforcement bars for concrete support beams according to claim 1, characterized in that: One end of the middle stiffening rib (4) away from the steel plate A (3) is fixedly connected to the outer wall of the top lattice column tie plate (2).

4. A lattice column top node for facilitating the installation of reinforcement bars for concrete support beams according to claim 1, characterized in that: The outer wall of the anchor bar (6) contacts the inner wall of the positioning hole (53).

5. A lattice column top node for facilitating the installation of reinforcement bars for concrete support beams according to claim 1, characterized in that: The surface of the top end of the steel plate A (3) is provided with a plurality of placement holes, and the outer wall of the bottom end of the anchor bar (6) is in contact with the inner wall of the placement hole.

6. A lattice column top node for facilitating the installation of reinforcement bars for concrete support beams according to claim 1, characterized in that: The bottom end of the outer wall of the steel plate B (51) contacts the top end of the outer wall of the steel plate A (3).

7. A lattice column top node for facilitating the installation of reinforcement bars for concrete support beams according to claim 1, characterized in that: The outer wall of the sliding block (52) is slidably connected to the inner wall of the guide groove (7).

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