Concrete frame beam formwork reinforcing system convenient to assemble and disassemble
By using a fastening device of wooden keel and hook rod in the concrete frame beam formwork, the problems of large amount of steel pipe cutting and complex operation in the prior art are solved, and lightweight reinforcement and efficient construction are achieved.
Patent Information
- Application Number
- CN202422190763.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-06
AI Technical Summary
During the reinforcement of existing concrete frame beam formwork, steel pipe cutting consumes a lot and complex operation, resulting in low construction efficiency.
A reinforcement system including frame beam bottom formwork, front side vertical formwork and rear side vertical formwork is adopted. Through the combination of horizontal and vertical wooden keels, the fastening device of the L-shaped bottom end hook rod and the S-shaped pressing plate is used to achieve the reinforcement and convenient removal of the formwork.
The reinforcement system improves the tightening strength of the formwork, reduces the physical strength needs of construction personnel, simplifies the installation and demolition process, and greatly improves construction efficiency.
Smart Images
Figure CN223003738U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a formwork for a concrete frame beam, in particular to a reinforcement system for a formwork of a concrete frame beam that can be conveniently installed and disassembled. Background Art
[0002] Generally, the bottom formwork and side formwork of a concrete frame beam are made of 15-mm-thick wood plywood. The bottom formwork and side formwork are pre-processed and prepared according to the design dimensions of the drawings and assembled on-site at the construction operation surface. Before assembling the formwork joints, the joints are planed flat with a woodworking plane; when assembling the formwork on-site, to ensure the tightness of the joints, a sponge sealing strip can be added at the joint between the side formwork and the bottom formwork of the beam to ensure the tightness of the joints and prevent leakage of mortar; after the formwork is installed, wooden keels are respectively arranged on the outer side of the side formwork of the beam and the bottom surface of the bottom formwork of the beam. Generally, the bottom wooden keel of the beam is a 100-mm × 100-mm square wood, and the side wooden keel of the beam is a 50-mm × 100-mm square wood. The spacing of the side formwork keels of the beam is not greater than 150 mm, and the spacing of the bottom formwork keels of the beam is not greater than 100 mm. The spacing of the wooden keels on the side and bottom of the beam is evenly distributed along the longitudinal direction of the beam; when processing the wooden keels, the height dimensions of the wooden keels should be ensured to be consistent to ensure the flatness of the supporting wooden formwork; to ensure that the concrete frame beam does not bulge during the concrete pouring process, a tie bolt should also be arranged at the waist of the frame beam. Generally, it is made of φ12 steel bars. The position and quantity of the tie bolts for the frame beam with a height greater than 600 mm are determined according to the cross-sectional dimensions of the frame beam and the concrete pouring height. For beams with a height not greater than 600 mm, they are arranged according to 500 mm × 500 mm. The bolts are installed with double nuts, and the horizontal spacing is 900 mm. When adding the tie bolts, PVC sleeves should be added at the corresponding positions inside the frame beam formwork in advance to facilitate the removal of the tie bolts after the formwork is removed; to ensure the cross-sectional dimensions of the beam, φ16 steel bar formwork struts are arranged between the two side formworks inside the beam. The formwork struts are arranged near the tie bolts, and the spacing is twice the spacing of the tie bolts. The formwork struts are firmly tied to the frame beam reinforcement. The formwork struts are cut with a chop saw without teeth, and the length is 2 mm smaller than the beam width. The cut ends are painted with antirust paint; after installing the tie bolts, reinforcement steel channels are arranged on the outer side and bottom formwork of the beam. The steel channels are all made of double ф48 × 2.8 steel pipes. The spacing of the steel channels is generally 500 mm, and each extends 300 mm beyond the side formwork of the beam up and down for upper and lower tension connection and fixation of the formwork to ensure that the formwork does not deform or twist; during the above frame beam formwork reinforcement process, a large number of 6-meter-long steel pipes need to be processed and cut into short steel pipes suitable for the cross-section of the column frame beam for use as the reinforcement steel channels of the formwork. At the same time, because the weight per unit length of the steel pipe is relatively large, certain physical strength support from construction workers is required to complete the operation; how to develop a reinforcement system with light weight, low physical strength requirements for construction workers, and at the same time can improve the installation and removal efficiency of the formwork reinforcement system is a problem that needs to be solved at the construction site. Summary of the Invention
[0003] The utility model provides a reinforcement device for a formwork of a concrete frame beam that can be conveniently installed and disassembled, which solves the technical problems of large consumption in cutting reinforcement steel pipes and complex operation in the process of reinforcing the formwork of the beam in the prior art.
[0004] The utility model solves the above technical problems through the following technical solutions:
[0005] The general idea of the utility model is as follows: First, install the formwork support scaffold. After installing the bottom wooden keel of the frame beam along the longitudinal direction of the beam, lay the bottom formwork, tie the steel bars of the frame beam according to the requirements of the drawing design, then close the two side vertical formworks, set a certain number of horizontal wooden keels on the outer side of the formwork and distribute them evenly, then set the vertical wooden keels, tie them with No. 8 wire at the upper end of the vertical wooden keels, and tie and fix them with L-shaped bottom hooks at the lower end. During reinforcement, two operators need to cooperate. The hook of the L-shaped bottom hook is stuck to the lower end of the rear vertical wooden keel, and the steel ring of the S-shaped movable pressing plate on the L-shaped bottom hook or a hammer is used to clamp tightly with the hook rod to realize the clamping and fixing of the front vertical keel.
[0006] A reinforcement system for a formwork of a concrete frame beam that can be conveniently installed and disassembled includes a bottom formwork of the frame beam, a front vertical formwork of the frame beam, and a rear vertical formwork of the frame beam. Horizontally spaced bottom wooden keels are provided on the lower bottom surface of the bottom formwork of the frame beam. Horizontally spaced front horizontal wooden keels are provided on the outer vertical surface of the front vertical formwork of the frame beam. Vertically spaced front vertical wooden keels are provided on the outer vertical surface of the front horizontal wooden keels. Horizontally spaced rear horizontal wooden keels are provided on the outer vertical surface of the rear vertical formwork of the frame beam. Vertically spaced rear vertical wooden keels are provided on the outer vertical surface of the rear horizontal wooden keels. An upper wire is provided between the upper ends of the front vertical wooden keels and the upper ends of the rear vertical wooden keels. An L-shaped bottom hook rod is provided on the lower bottom surface of the horizontally spaced bottom wooden keels between the front vertical wooden keels and the rear vertical wooden keels. The hook at the rear end of the L-shaped bottom hook rod is clamped to the outer vertical surface at the lower end of the rear vertical wooden keel. An S-shaped pressing plate is movably sleeved on the L-shaped bottom hook rod. A vertically long strip through hole with a smaller upper part and a larger lower part is provided at the lower part of the S-shaped pressing plate. The S-shaped pressing plate is movably sleeved on the rod body of the L-shaped bottom hook rod through the vertically long strip through hole. The S-shaped pressing plate realizes the clamping and fixing of the rod body of the S-shaped pressing plate and the rod body of the L-shaped bottom hook rod by clamping the rod body of the L-shaped bottom hook rod at the upper small hole part of the vertically long strip through hole, and the upper end of the S-shaped pressing plate abuts against the outer vertical surface at the lower end of the front vertical wooden keel. The cooperation between the hook body of the S-shaped pressing plate and the L-shaped bottom hook rod realizes the clamping and clamping of the bottom end of the front vertical formwork of the frame beam and the bottom end of the rear vertical formwork of the frame beam.
[0007] An anti - detachment plate is provided on the front side end of the rod body of the L - shaped bottom hook rod; the included angle between the rod body of the L - shaped bottom hook rod and the hook body is 80 degrees; bottom main reinforcement bars and top main reinforcement bars are respectively arranged in the frame beam formwork composed of the bottom formwork of the frame beam, the front vertical formwork of the frame beam and the rear vertical formwork of the frame beam, and hoop reinforcement bars are arranged between the bottom main reinforcement bars and the top main reinforcement bars.
[0008] The fastening strength of the frame beam formwork reinforcement system of the present utility model can meet the fastening requirements of the beam formwork, which not only realizes the reinforcement of the frame beam formwork, but also realizes the light weight of the reinforcement mechanism, facilitating the installation and removal by construction workers and greatly improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 is a schematic structural view of the present utility model;
[0010] Figure 2 is a schematic structural view of the L - shaped bottom hook rod 10 of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0011] The present utility model will be described in detail below with reference to the accompanying drawings:
[0012] A reinforcement system for a formwork of a concrete frame beam that can be conveniently installed and disassembled, including a bottom formwork 1 of the frame beam, a front vertical formwork 3 of the frame beam, and a rear vertical formwork 6 of the frame beam. Horizontally spaced bottom formwork wooden keels 2 are provided on the lower bottom surface of the bottom formwork 1 of the frame beam. Horizontally spaced front horizontal wooden keels 4 are provided on the outer vertical surface of the front vertical formwork 3 of the frame beam. Vertically spaced front vertical wooden keels 5 are provided on the outer vertical surface of the front horizontal wooden keels 4. Horizontally spaced rear horizontal wooden keels 7 are provided on the outer vertical surface of the rear vertical formwork 6 of the frame beam. Vertically spaced rear vertical wooden keels 8 are provided on the outer vertical surface of the rear horizontal wooden keels 7. An upper wire 9 is provided between the top ends of the front vertical wooden keel 5 and the top end of the rear vertical wooden keel 8, and the upper wire 9 pulls and fixes the top end of the front vertical wooden keel 5 and the top end of the rear vertical wooden keel 8. An L-shaped bottom hook rod 10 is provided on the lower bottom surface of the bottom formwork wooden keel 2 between the front vertical wooden keel 5 and the rear vertical wooden keel 8. The hook at the rear end of the L-shaped bottom hook rod 10 is clamped on the outer vertical surface of the lower end of the rear vertical wooden keel 8. An S-shaped pressing plate 12 is movably sleeved on the L-shaped bottom hook rod 10. A vertically long through hole 14 that is smaller at the top and larger at the bottom is provided at the lower part of the S-shaped pressing plate 12. The S-shaped pressing plate 12 is movably sleeved on the rod body of the L-shaped bottom hook rod 10 through the vertically long through hole 14. The S-shaped pressing plate 12 is clamped and fixed to the rod body of the L-shaped bottom hook rod 10 by clamping the rod body of the L-shaped bottom hook rod 10 in the upper small hole part of the vertically long through hole 14, and the upper end of the S-shaped pressing plate 12 is abutted against the outer vertical surface of the lower end of the front vertical wooden keel 5. The S-shaped pressing plate 12 and the hook body of the L-shaped bottom hook rod 10 cooperate to achieve the clamping and connection of the bottom end of the front vertical formwork 3 of the frame beam and the bottom end of the rear vertical formwork 6 of the frame beam.
[0013] An anti-slip plate 13 is provided on the front side end of the rod body of the L-shaped bottom hook rod 10. The function of the anti-slip plate 13 is to prevent the S-shaped pressing plate 12 from slipping off the rod body of the L-shaped bottom hook rod 10. The included angle 11 between the rod body and the hook body of the L-shaped bottom hook rod 10 is 80 degrees. The hook body at the rear end of the rod body of the L-shaped bottom hook rod 10 and the S-shaped pressing plate 12 tightly hold and clamp the lower end of the front vertical wooden keel 5 and the lower end of the rear vertical wooden keel 8 in an upwardly inclined manner. Bottom main reinforcements 15 and top main reinforcements 16 are respectively provided inside the frame beam formwork composed of the bottom formwork 1 of the frame beam, the front vertical formwork 3 of the frame beam, and the rear vertical formwork 6 of the frame beam. Stirrups 17 are provided between the bottom main reinforcements 15 and the top main reinforcements 16.
[0014] The operation steps of the present utility model are as follows:
[0015] First step: Process a steel plate with a certain thickness into a long strip-shaped rod body of the L-shaped bottom hook rod 10 with a certain width, and grind the four edges and corners of the long strip-shaped rod body into obtuse angles to avoid scratching the operating personnel by the four sides of the long strip-shaped rod body;
[0016] Step 2: Use a bending machine to bend one end of the processed long bar-shaped rod into a hook head at an 80-degree angle to form the L-shaped bottom hook rod 10. Process the top of the hook head into a flat stress point to facilitate the hook to receive force, and make the anti-disengagement plate 13 with a steel block.
[0017] Step 3: Process the S-shaped pressing plate 12 with a steel plate, and process a vertical long through hole 14 at the lower part of the S-shaped pressing plate 12, and make the vertical long through hole 14 present a shape with a smaller upper through hole and a larger lower through hole.
[0018] Step 4: Actively insert the rod body of the L-shaped bottom hook rod 10 into the large hole at the lower part of the vertical long through hole 14, and set the upper part of the S-shaped pressing plate 12 above the rod body of the L-shaped bottom hook rod 10, and weld the anti-disengagement plate 13 to the tail of the L-shaped bottom hook rod 10.
[0019] Step 5: Set the L-shaped bottom hook rod 10 on the lower bottom surface of the horizontal wooden keel 2 under the bottom formwork between the front vertical wooden keel 5 and the rear vertical wooden keel 8, and hook the hook body of the L-shaped bottom hook rod 10 to the outer vertical surface at the lower end of the rear vertical wooden keel 8.
[0020] Step 6: Move the S-shaped pressing plate 12 to the outside of the outer surface of the front vertical wooden keel 5, and use a hammer to strike the S-shaped pressing plate 12 to embed the rod body of the L-shaped bottom hook rod 10 into the upper small hole of the vertical long through hole 14, realizing the clamping and fixing of the S-shaped pressing plate 12 and the rod body of the L-shaped bottom hook rod 10. At the same time, make the S-shaped pressing plate 12 abut against the outer vertical surface at the lower end of the front vertical wooden keel 5, thereby completing the clamping and fixing of the lower end of the front vertical wooden keel 5 and the lower end of the rear vertical wooden keel 8.
[0021] Step 7: Connect the upper wire 9 between the top of the front vertical wooden keel 5 and the top of the rear vertical wooden keel 8 to complete the fixation of the frame beam formwork; the above-mentioned fastening device is arranged between each pair of the front vertical wooden keel 5 and the rear vertical wooden keel 8 on the outside of the frame beam formwork.
[0022] Step 8: After the frame beam is completed with concrete pouring, just use a hammer to strike the S-shaped pressing plate 12 upward to make the rod body of the L-shaped bottom hook rod 10 enter the large hole at the lower part of the vertical long through hole 14, then the S-shaped pressing plate 12 can move freely on the rod body of the L-shaped bottom hook rod 10, thereby releasing the clamping of the L-shaped bottom hook rod 10 between the front vertical wooden keel 5 and the rear vertical wooden keel 8. Finally, remove the frame beam formwork.
Claims
1. A reinforcement system for a concrete frame beam formwork that can be conveniently installed and disassembled, comprising a frame beam bottom formwork (1), a frame beam front side vertical formwork (3) and a frame beam rear side vertical formwork (6), wherein horizontal wooden keels (2) below the bottom formwork are arranged at intervals on the lower bottom surface of the frame beam bottom formwork (1), front horizontal wooden keels (4) are arranged at intervals on the outer side vertical surface of the frame beam front side vertical formwork (3), and front vertical wooden keels (5) are arranged at intervals on the outer side vertical surface of the front horizontal wooden keel (4); rear horizontal wooden keels (7) are arranged at intervals on the outer side vertical surface of the frame beam rear side vertical formwork (6), and rear vertical wooden keels (8) are arranged at intervals on the outer side vertical surface of the rear horizontal wooden keel (7), characterized in that: An upper drawing wire (9) is provided between the top of the front vertical wooden keel (5) and the top of the rear vertical wooden keel (8); an L-shaped bottom hook rod (10) is provided on the lower bottom surface of the horizontal wooden keel (2) below the bottom template between the front vertical wooden keel (5) and the rear vertical wooden keel (8), and the hook at the rear end of the L-shaped bottom hook rod (10) is clamped on the outer vertical surface of the lower end of the rear vertical wooden keel (8); an S-shaped pressing plate (12) is movably sleeved on the L-shaped bottom hook rod (10), and a vertical long strip through hole (14) with a smaller top and a larger bottom is provided at the lower part of the S-shaped pressing plate (12), and the S-shaped pressing plate (12) is vertically connected to the bottom of the horizontal wooden keel (2) below the bottom template. The long through hole (14) is movably sleeved on the rod body of the L-shaped bottom hook rod (10), and the S-shaped pressing plate (12) is clamped and fixed with the rod body of the L-shaped bottom hook rod (10) by clamping the rod body of the L-shaped bottom hook rod (10) on the upper small hole part of the vertical long through hole (14), and the upper end of the S-shaped pressing plate (12) is top-connected to the outer vertical surface of the lower end of the front vertical wooden keel (5), and the S-shaped pressing plate (12) cooperates with the hook body of the L-shaped bottom hook rod (10) to clamp and clamp the bottom end of the frame beam front side vertical template (3) and the bottom end of the frame beam rear side vertical template (6).
2. A reinforcement system for a concrete frame beam formwork that can be easily installed and removed according to claim 1, characterized in that: An anti-slip plate (13) is arranged on the front side end of the rod body of the L-shaped bottom end hook rod (10); bottom main reinforcement (15) and top main reinforcement (16) are respectively arranged in the frame beam template composed of the frame beam bottom template (1), the frame beam front side vertical template (3) and the frame beam rear side vertical template (6); and a ring reinforcement (17) is arranged between the bottom main reinforcement (15) and the top main reinforcement (16).