Beam bottom constructional column embedded-steel-bar-free structure

By pre-embedding threaded sleeves and connecting longitudinal reinforcement in the beams, and combining them with positioning components, the problem of rebar installation in existing technologies has been solved, enabling accurate and stable rebar-free structural column construction, thus improving construction efficiency and overall stability.

CN223689086UActive Publication Date: 2025-12-19WENZHOU ZHONGCHENG CONSTR GRP CO LTD
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Patent Information

Application Number
CN202423153349.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-19
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

In the construction of existing secondary reinforced concrete structural columns, the rebar installation method is difficult to control the drilling depth and position, which can easily damage the steel bars inside the beam. It is also difficult to construct, increases material and labor costs, and the embedded components are prone to displacement.

Method used

The longitudinal reinforcement is connected by pre-embedded threaded sleeves in the beam and combined with positioning components such as the first pad and threaded sleeves. It is fixed by the lower template to ensure the stability of the longitudinal reinforcement, and the steel box body is used to improve the overall integrity and stability.

Benefits of technology

It enables precise positioning and rebar-free construction, avoids longitudinal reinforcement displacement, improves the stability of the connection between structural columns and beams, and reduces construction difficulty and material costs.

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Abstract

The utility model discloses a steel bar planting-free structure of a beam bottom constructional column, the upper end of the constructional column is connected with a beam, a threaded sleeve used for being connected with a longitudinal bar of the constructional column or the longitudinal bar pre-inserted into the constructional column is pre-embedded in the beam, and the steel bar planting-free structure further comprises a positioning assembly fixed with the threaded sleeve or the pre-inserted longitudinal bar. The positioning assembly is arranged on the lower die plate and fixed to the lower die plate. According to the bar-planting-free structure of the beam bottom constructional column, a threaded sleeve used for being connected with a longitudinal bar of the constructional column or a longitudinal bar pre-inserted into the constructional column is pre-embedded in a beam, the beam bottom constructional column further comprises a positioning assembly fixed to the threaded sleeve or the pre-inserted longitudinal bar, and the positioning assembly is arranged on a lower formwork and fixed to the lower formwork. Therefore, the longitudinal bar or the threaded sleeve is fixed, and displacement of the beam in the pouring and tamping process is prevented.
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Description

TECHNICAL FIELD

[0001] The utility model relates to building part technical field, concretely is a beam bottom constructional column free -rebar construction. BACKGROUND

[0002] In the construction process of building engineering, in order to facilitate construction, one-time structure construction such as column and beam is usually carried out, after one-time construction is completed, in order to enhance the integrity and stability of building, secondary structure construction such as constructional column is carried out again, constructional column is generally arranged at the position such as four corners of outer wall, junction, both sides of hole, is connected with each layer beam, and space frame is formed.

[0003] The construction method of the existing secondary structure reinforced concrete constructional column usually adopts the mode of rebar planting, inserts the rebar into the hole in the bottom of the beam and carries out grouting fixation by drilling. Such as the auxiliary rebar planting device for the constructional column top rebar planting of the subject name of the public number CN219044008U. Its insufficient place lies in, the position of drilling and the depth of drilling all need strict control, drilling is too shallow and is easy to plant rebar not firm, too deep or incorrect position can hurt the rebar in the beam, and the concrete thickness protection layer of reinforced concrete beam is generally only 50mm, construction is more difficult, also can increase additional materials and labor, improve the project cost. In the existing free rebar planting technology, due to the influence of vibration, the component pre-buried or pre-inserted in the beam is easy to displace. UTILITY MODEL CONTENTS

[0004] In view of the above insufficient, the utility model aims at providing a beam bottom constructional column free rebar planting structure with accurate positioning.

[0005] Therefore, a beam bottom constructional column free rebar planting structure, the upper end of the constructional column is connected with the beam, the beam is pre-buried with the threaded sleeve for connecting with the longitudinal reinforcement of the constructional column or pre-inserts the longitudinal reinforcement of the constructional column, further includes the positioning assembly fixed with the threaded sleeve or the pre-inserted longitudinal reinforcement, the positioning assembly is arranged on the lower formwork and is fixed with the lower formwork.

[0006] Further, the positioning assembly includes the first pad block, the first pad block is formed on the longitudinal reinforcement, and the first pad block includes a fixed part, and the fixed part is fixed with the lower formwork.

[0007] Further, the longitudinal reinforcement extends outward from the upper surface of the first pad block and is fixed with the bottom reinforcement of the beam.

[0008] Further, the upper surface of the first pad block is padded below the bottom reinforcement of the beam, the lower surface of the first pad block is in abutment with the surface of the lower formwork, the second pad block is arranged on both sides of the pre-inserted longitudinal reinforcement, and the second pad block is padded between the lower formwork and the bottom reinforcement of the beam.

[0009] The bottom of the threaded sleeve is provided with a fixed part, and the fixed part is suitable for being fixed with the lower formwork.

[0010] Further, the threaded sleeve is fixed with the bottom bar of the beam.

[0011] Further, the upper end of the threaded sleeve is fixed at a predetermined position of the fixed plate, and the two sides of the fixed plate are respectively welded with the short bars, and the other end of the short bars is welded with the bottom bar of the beam.

[0012] Further, the upper end of the threaded sleeve is fixed at a predetermined position of the fixed plate, and the two sides of the fixed plate are respectively welded with the short bars, and the other end of the short bars is welded with the bottom bar of the beam.

[0013] Further, the upper end of the threaded sleeve is fixed at a predetermined position of the fixed plate, and the two sides of the fixed plate are respectively welded with the short bars, and the other end of the short bars is welded with the bottom bar of the beam.

[0014] The beneficial technical effects of the present application are as follows:

[0015] (1) The beam bottom structure column of the present application is free of embedded steel bars, and a threaded sleeve for connecting with the longitudinal bars of the structure column or a longitudinal bar of the structure column is pre-buried in the beam, and further comprising a positioning assembly fixed with the threaded sleeve or the pre-inserted longitudinal bar, which is arranged on the lower mold plate and fixed with the lower mold plate. In a specific embodiment, the positioning assembly can be a first pad, which can be formed on the longitudinal bar by concrete pouring, and the first pad can further be provided with a fixing portion which can be fixed with the lower mold plate by bolts or screws, so as to fix the longitudinal bar or the threaded sleeve and prevent displacement during the pouring and vibrating process of the beam.

[0016] (2) In a specific embodiment of the present application, the longitudinal bar or the threaded sleeve can also be directly or indirectly fixed with the bottom bar of the beam to form a more stable structure, or a steel box is fixed in the beam to improve the integrity and stability of the combination of the structure column and the beam. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the connection relationship between the structure column and the beam.

[0018] Figure 2 It is a schematic view of the connection between the longitudinal bar of the structure column and the steel bar of the beam in embodiment 1.

[0019] Figure 3 It is a schematic view of embodiment 2.

[0020] Figure 4 It is a schematic view of the connection between the threaded sleeve and the fixed plate in embodiment 2.

[0021] Figure 5 It is a schematic view of the steel box in embodiment 2.

[0022] Explanation of reference signs: 1, beam; 101, beam steel bar; 102, bottom bar; 2, structural column; 3, longitudinal bar; 4, threaded sleeve; 5, first cushion block; 6, fixed part; 7, lower mold plate; 8, fixed plate; 9, short bar; 10, box body; 11, peg; 12, second cushion block. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0024] Referring to Figures 1 to 5 Fig. 1, a beam bottom structural column free from embedded steel bar structure of the utility model is provided, the upper end of the structural column 2 is connected with the beam 1, the threaded sleeve 4 for connecting with the longitudinal bar 3 of the structural column 2 or the longitudinal bar 3 of the structural column pre-inserted is pre-buried in the beam 1, and the beam bottom structural column free from embedded steel bar structure further comprises a positioning assembly fixed with the threaded sleeve 4 or the pre-inserted longitudinal bar 3, the positioning assembly is arranged on the threaded sleeve or the longitudinal bar and is fixed with the lower mold plate 7. In this embodiment, the building is a frame structure, comprising a column and a beam 1, the beam 1 is arranged with beam steel bars 101 and the column is formed into a frame structure by on-site pouring of concrete, and after the pouring of the frame structure is completed, the construction of the secondary structure is carried out. Referring to Figure 1 Fig. 2, the upper and lower ends of the structural column 2 are both connected with the frame beam 1. Referring to Figure 2 Fig. 1, in the embodiment 1, the first cushion block 5 is fixed on the upper end of the longitudinal bar 3 of the structural column 2, the upper surface of the first cushion block 5 is padded below the bottom bar 102 of the beam steel bar, the lower end of the first cushion block 5 is provided with a fixed part 6, the first cushion block 5 can be poured on the longitudinal bar 3 by concrete, and the upper surface of the first cushion block 5 is padded below the bottom bar 102 of the beam steel bar, the fixed part 6 can be a wooden square or a metal sheet, and the wooden square or the metal sheet is fixed with the lower mold plate 7 by screws or bolts. Through the fixation of the first cushion block 5 and the fixed part 6 on the longitudinal bar 3, the displacement or inclination of the longitudinal bar 3 in the process of pouring and vibrating of the beam concrete is avoided, the mold plate is removed after the pouring of the beam 1 is completed, and if the fixed part is a wooden square, the wooden square is also removed, and the steel bar arrangement of the structural column 2 can be arranged in the manner shown in Figure 2 Fig. 3, the vertical bar of the structural column is arranged outside the longitudinal bar 3, and the vertical bar is bound by stirrups and then arranged with a mold plate for pouring of concrete.

[0025] In the above embodiment 1, the longitudinal reinforcement 3 extends outwardly from the upper surface of the first pad 5 and is fixed to the bottom reinforcement 102 of the beam by welding, which can further improve the stability of the pre-inserted longitudinal reinforcement 3. Due to the weight of the longitudinal reinforcement 3 and the self-weight of the beam reinforcement 101, it is prone to sag. The upper surface of the first pad 5 is provided below the bottom reinforcement 102 of the beam 1, the lower surface of the first pad 5 is in contact with the surface of the lower mold plate 7, and the second pad 12 is provided on both sides of the pre-inserted longitudinal reinforcement 3. The second pad 12 is provided between the lower mold plate 7 and the bottom reinforcement 102 of the beam 1, which can effectively support and prevent the beam reinforcement 101 from sagging to cause the thickness of the concrete cover of the beam to be insufficient.

[0026] Referring to Figures 3 to 5 In the embodiment 2 of the utility model, a threaded sleeve 4 is embedded in the beam 1, the lower end of the threaded sleeve 4 is in contact with the lower mold plate 7, and the lower end of the threaded sleeve 4 can be integrally formed with the fixing part 6. The fixing part 6 can be a wing plate, and the wing plate can be provided with holes and fixed to the lower mold plate 7 by bolts. The threaded sleeve 4 can be made of metal material. The upper end of the threaded sleeve 4 can be welded and fixed to the bottom reinforcement 102 of the beam reinforcement to improve the stability of the threaded sleeve 4 during the vibrating process. The longitudinal reinforcement 3 of the constructional column is made of threaded steel reinforcement and is threadedly connected with the threaded sleeve 4. Generally, four longitudinal reinforcements of the constructional column can be provided, and the number of the threaded sleeves 4 is the same as that of the longitudinal reinforcements. When the threaded sleeves 4 are fixed to the bottom reinforcement 102 of the beam, the spacing of the longitudinal reinforcements 3 of the constructional column is limited by the spacing of the bottom reinforcement 102 of the beam, and the threaded sleeves 4 are in communication with the outside, which is easy to cause the beam reinforcement 101 to be exposed and rusted. Figure 4 Referring to

[0027] In the above embodiment 2, referring to Figure 5 In the above embodiment 2, referring to

[0028] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A beam bottom construction column rebar-free construction, the upper end of the construction column is connected with the beam, characterized in that: The beam is pre-embedded with threaded sleeves for connecting with the longitudinal reinforcement of the structural column or pre-inserted with the longitudinal reinforcement of the structural column, and also includes a positioning component for fixing the threaded sleeves or pre-inserted longitudinal reinforcement. The positioning component is set on the lower template and fixed to the lower template.

2. A beam bottom construction column non-anchoring construction according to claim 1, characterized in that: The positioning component includes a first pad block formed on the longitudinal rib, and the first pad block includes a fixing part, which is fixed to the lower template.

3. A beam bottom construction column non-bonded construction according to claim 2, characterized in that: The longitudinal reinforcement extends outward from the upper surface of the first pad and is fixed to the bottom reinforcement of the beam.

4. A beam bottom construction column non-bonded construction according to claim 3, characterized in that: The upper surface of the first pad is placed under the bottom reinforcement of the beam, and the lower surface of the first pad abuts against the surface of the lower formwork. Second pads are provided on both sides of the pre-inserted longitudinal reinforcement, and the second pads are placed between the lower formwork and the bottom reinforcement of the beam.

5. The beam bottom construction column rebar-planting-free construction according to claim 1, characterized in that: The bottom of the threaded sleeve is provided with a fixing part, which is suitable for fixing the lower template.

6. A beam bottom construction column rebar-free construction according to claim 5, characterized in that: The threaded sleeve is fixed to the bottom reinforcement of the beam.

7. A beam bottom construction column rebar-free construction according to claim 6, characterized in that: The upper end of the threaded sleeve is fixed at a predetermined position on the fixing plate, and the two sides of the fixing plate are welded and fixed to the short reinforcing bars respectively. The other end of the short reinforcing bars is welded and fixed to the bottom reinforcing bars of the beam.

8. A beam bottom construction column rebar-free construction according to claim 5, characterized in that: The upper end of the threaded sleeve is fixed to the lower surface of the steel box. The box is U-shaped, and the two opposite sides of the box are connected in the horizontal direction, so that the concrete fills the inside of the box when the beam is poured.

9. A beam bottom construction column rebar-free construction according to claim 8, characterized in that: Multiple studs are provided on the side walls and top surface of the box body, and the studs are cast into the beam.

Citation Information

Patent Citations

  • Auxiliary steel bar planting device for steel bar planting at top of constructional column

    CN219044008U