Quick-release and quick-assembly type formwork applied to concrete beam reinforcement engineering

By using irregularly shaped aluminum alloy corner molds and quick-release and quick-install formwork with adjustable tie rods, the problems of long construction period and high cost in the reinforcement of concrete beams were solved, achieving efficient and environmentally friendly construction results.

CN224078745UActive Publication Date: 2026-04-03GANSU JIU STEEL GRP HONGXING IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In the current process of reinforcing concrete beams, the traditional method of increasing the cross-sectional area has a long construction cycle, low efficiency, complex formwork installation and dismantling, and high cost.

Method used

By using irregularly shaped aluminum alloy corner molds and horizontally adjustable tie rods, combined with bamboo plywood and adjusting screws, a quick-release and quick-installation formwork is formed, which can adapt to concrete beams with different cross sections, simplify the construction process and improve the flexibility and tight splicing of the formwork.

Benefits of technology

It reduced material and labor costs, improved construction efficiency, simplified construction processes, reduced resource consumption and waste, and ensured the quality and dimensional accuracy of concrete beams, in line with the concept of green building.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a quick-release quick-assembly type template applied to concrete beam reinforcement engineering, which comprises two special-shaped upper corner moulds which are symmetrically arranged, a base plate is arranged above the special-shaped upper corner moulds, the special-shaped upper corner moulds and the base plate are connected through a first adjusting pull rod, a special-shaped lower corner mould is arranged below the special-shaped upper corner moulds, a connecting plate is arranged between the special-shaped lower corner mould and the special-shaped lower corner mould, and the connecting plate is connected with the base plate through a second adjusting pull rod. The two ends of the connecting plate are clamped with the special-shaped upper corner die and the special-shaped lower corner die respectively, and a plurality of adjusting lead screws are arranged in the middle of the connecting plate. The special-shaped aluminum alloy angle die and the transverse adjustable pull rod are adopted to replace a large number of steel pipes and square timbers used in the traditional process, so that the material cost is reduced, and the resource consumption is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology and relates to a quick-release and quick-installation formwork for concrete beam reinforcement projects. Background Technology

[0002] With the acceleration of urbanization and the advancement of building technology, the seismic resistance and safety of many old industrial buildings no longer meet the requirements of current standards, especially in large industrial plants. To improve building safety and seismic resistance, and to increase production efficiency, it is necessary to reinforce and renovate existing buildings to meet new safety standards and functional requirements. Therefore, the reinforcement and renovation of existing buildings has become a new and popular field. However, due to the limited breakthroughs and applications of existing machinery and tools during the reinforcement and renovation process, there is a growing demand for new and efficient reinforcement construction machinery and tools to make the construction process more efficient and convenient.

[0003] As the most important bending members of a building, reinforced concrete frame beams are the first to be addressed during reinforcement, especially in industrial plants where beams have large cross-sections and are often long-span beams, making construction difficult and costly. Among existing methods for reinforcing concrete beams, increasing the cross-sectional area is a common practice. This involves adding new concrete and steel reinforcement to the existing beam section to improve its load-bearing capacity and stiffness. Typically, bamboo plywood is installed as formwork on the sides and bottom of the beam. To ensure the bamboo plywood doesn't bulge or shift during concrete pouring, a large amount of square timber is used for support on the sides and ground of the formwork. A dense steel pipe scaffolding support system is also installed around the formwork. Furthermore, to ensure the quality and overall strength of the concrete pour, the inside corners of the bamboo plywood are filled with a flocculent material and sealed with tape. This construction process is complex, costly, and inefficient. Utility Model Content

[0004] The purpose of this utility model is to address the problems existing in the prior art by providing a quick-release and quick-installation formwork for concrete beam reinforcement projects. This solves the problems of long construction cycles, low efficiency, and complex formwork installation and dismantling associated with traditional methods of expanding the cross-sectional area of ​​concrete beams with large cross-sections when reinforcing and modifying them.

[0005] Therefore, the present invention adopts the following technical solution:

[0006] A quick-release and quick-install formwork for reinforced concrete beams includes two irregularly shaped upper corner molds arranged symmetrically. A pad is provided above the irregularly shaped upper corner molds, and the two are connected by a first adjusting tie rod. An irregularly shaped lower corner mold is provided below the irregularly shaped upper corner molds, and a connecting plate is provided between the two. The two ends of the connecting plate are respectively engaged with the irregularly shaped upper corner molds and the irregularly shaped lower corner molds, and several adjusting screws are provided in the middle.

[0007] Furthermore, the irregular upper corner mold includes a first vertical plate, and the side of the first vertical plate is provided with a first horizontal plate, a second horizontal plate, and a second vertical plate in sequence;

[0008] The end of the first horizontal plate is connected to the end of the first vertical plate, the end of the second horizontal plate is connected to the middle of the side of the first vertical plate, the upper end of the second vertical plate is connected to the bottom of the second horizontal plate, the side of the second vertical plate is attached to the side of the first vertical plate, and the lower end of the second vertical plate extends beyond the lower end of the first vertical plate.

[0009] Furthermore, the irregularly shaped lower corner mold includes a third vertical plate, and a third horizontal plate and a fourth horizontal plate are respectively provided on both sides of the third vertical plate;

[0010] The end of the third horizontal plate is connected to the middle of the side of the third vertical plate, and a fourth vertical plate is provided on its top. The bottom of the fourth vertical plate is connected to the top of the third horizontal plate, the side is attached to the side of the third vertical plate, and the top of the fourth vertical plate extends beyond the top of the third vertical plate.

[0011] The end of the fourth horizontal plate is connected to the bottom of the third vertical plate. Below it are a fifth vertical plate and a fifth horizontal plate. The top of the fifth vertical plate is connected to the middle of the bottom of the fourth horizontal plate. The end of the fifth horizontal plate is connected to the side of the fifth vertical plate, and the top of the fifth horizontal plate is attached to the bottom of the fourth horizontal plate. The end of the fifth horizontal plate extends beyond the end of the fourth horizontal plate.

[0012] Furthermore, the second and third horizontal plates are connected by a second adjusting rod; the adjacent fifth vertical plate is connected by another second adjusting rod.

[0013] Furthermore, the connecting plate is made of bamboo plywood.

[0014] Furthermore, both the irregular upper corner mold and the irregular lower corner mold are made of aluminum alloy.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model effectively replaces the steel pipes and square timber used extensively in traditional processes by adopting irregularly shaped aluminum alloy corner molds and horizontally adjustable tie rods, thereby reducing material costs and resource consumption;

[0017] 2. The installation and disassembly of this utility model are more convenient, which improves work efficiency and reduces labor costs. At the same time, the reinforced template is easy to clean and store, which improves the reuse rate and greatly reduces material usage and waste generation. It is in line with the concept of green building and is beneficial to environmental protection.

[0018] 3. The adjustable horizontal tie rod design of this utility model allows for dimensional adjustments to the formwork during installation to accommodate concrete beams of different cross-sections, enhancing the flexibility and applicability of the formwork, significantly simplifying the construction process, and avoiding...

[0019] The complex steps and cumbersome operations in traditional processes can help to significantly shorten the construction period and accelerate the project process.

[0020] 4. The embedded bamboo plywood of this utility model is connected to the original concrete frame beam through a horizontal thickness adjustment screw, which ensures a tight splice between the templates and avoids grout leakage. At the same time, the tight splice and the use of the adjustment screw facilitate the adjustment of the pouring size, ensuring the quality and dimensional accuracy of the concrete beam, effectively preventing the template from moving or deforming during the pouring process, and ensuring the smooth progress of the reinforcement project.

[0021] 5. This utility model has a simple design, is easy to understand and operate, and has significant economic benefits and environmental advantages. It has broad application value in the field of construction engineering and is particularly suitable for reinforcement projects that increase the cross-sectional area of ​​concrete beams. Attached Figure Description

[0022] Figure 1 This is a bottom view of the structure of this utility model;

[0023] Figure 2 This is a side view of the structure of this utility model;

[0024] Figure 3 for Figure 1 AA cross-section view;

[0025] Figure 4 for Figure 1 BB cross-section;

[0026] Figure 5 This is a cross-sectional view of the irregular upper corner mold in this utility model;

[0027] Figure 6 This is a cross-sectional view of the irregularly shaped lower corner mold in this utility model.

[0028] In the diagram, 1-Irregular upper corner mold, 1a-First vertical plate, 1b-First horizontal plate, 1c-Second horizontal plate, 1d-Second vertical plate;

[0029] 2-Irregularly shaped lower corner mold, 2a-Third vertical plate, 2b-Third horizontal plate, 2c-Fourth horizontal plate, 2d-Fourth vertical plate, 2e-Fifth vertical plate, 2f-Fifth horizontal plate;

[0030] 3a-First adjusting rod, 3b-Second adjusting rod; 4-Connecting plate, 5-Adjusting screw, 6-Pad. Detailed Implementation

[0031] The technical solution of this utility model will be described below with reference to the accompanying drawings and implementation methods.

[0032] like Figures 1-4 As shown, a quick-release and quick-installation formwork for reinforced concrete beams includes two irregularly shaped upper corner molds 1 arranged symmetrically, with a pad 6 above the irregularly shaped upper corner molds 1, and the two are connected by a first adjusting rod 3a.

[0033] Below the irregular upper corner mold 1 is an irregular lower corner mold 2, and a connecting plate 4 is provided between the two; specifically, the irregular upper corner mold 1 and the irregular lower corner mold 2 are both made of aluminum alloy, and the connecting plate 4 is made of bamboo plywood; the two ends of the connecting plate 4 are respectively engaged with the irregular upper corner mold 1 and the irregular lower corner mold 2, and several adjusting screws 5 are provided in the middle.

[0034] like Figure 5 As shown, the irregular upper corner mold 1 includes a first vertical plate 1a, and a first horizontal plate 1b, a second horizontal plate 1c, and a second vertical plate 1d are sequentially provided on the side of the first vertical plate 1a; wherein, the end of the first horizontal plate 1b is connected to the end of the first vertical plate 1a, the end of the second horizontal plate 1c is connected to the middle of the side of the first vertical plate 1a, the upper end of the second vertical plate 1d is connected to the bottom of the second horizontal plate 1c, the side is attached to the side of the first vertical plate 1a, and the lower end of the second vertical plate 1d extends beyond the lower end of the first vertical plate 1a.

[0035] like Figure 6 As shown, the irregular lower corner mold 2 includes a third vertical plate 2a, and a third horizontal plate 2b and a fourth horizontal plate 2c are respectively provided on both sides of the third vertical plate 2a; wherein, the end of the third horizontal plate 2b is connected to the middle of the side of the third vertical plate 2a, and a fourth vertical plate 2d is provided at its top. The bottom of the fourth vertical plate 2d is connected to the top of the third horizontal plate 2b, the side is attached to the side of the third vertical plate 2a, and its top end extends beyond the top end of the third vertical plate 2a.

[0036] The end of the fourth horizontal plate 2c is connected to the bottom of the third vertical plate 2a. Below it are a fifth vertical plate 2e and a fifth horizontal plate 2f. The top of the fifth vertical plate 2e is connected to the middle of the bottom of the fourth horizontal plate 2c. The end of the fifth horizontal plate 2f is connected to the side of the fifth vertical plate 2e, and the top is attached to the bottom of the fourth horizontal plate 2c. The end of the fifth horizontal plate 2f extends beyond the end of the fourth horizontal plate 2c.

[0037] In addition, the second horizontal plate 1c and the third horizontal plate 2b are connected by the second adjusting rod 3b; the two adjacent fifth vertical plates 2e are connected by another second adjusting rod 3b; specifically, the first adjusting rod 3a, the second adjusting rod 3b and the adjusting screw 5 all adopt high-strength screws of different specifications to be suitable for different usage scenarios.

[0038] The usage process of this utility model is as follows:

[0039] First, irregular upper corner mold 1 and irregular lower corner mold 2 are installed at the four corners of the original concrete frame beam to be reinforced. Irregular upper corner mold 1 is connected to the upper floor slab through several first adjusting rods 3a and pads 6. Irregular upper corner mold 1 and irregular lower corner mold 2, as well as two irregular lower corner molds 2, are connected together through several second adjusting rods 3b. The irregular lower corner mold 2 is used as the control point and the size is adjusted by the first adjusting rods 3a to form a quick-release and quick-install formwork skeleton.

[0040] Then, after processing according to the calculated dimensions, the connecting plate 4 is installed between the irregular upper corner mold 1 and the irregular lower corner mold 2. The pad plate 6, the irregular upper corner mold 1, the irregular lower corner mold 2 and the first adjusting tie rod 3a serve as load-bearing components. At the same time, they can be adjusted according to the actual outer dimensions of the soil beam to be reinforced, and they also play a role in binding and constraining the connecting plate 4.

[0041] Finally, to prevent the formwork from deforming after the material is loaded, adjusting screw rods 5 are installed on both sides and the bottom of the connecting plate 4 and the original concrete beam. The adjusting screw rods 5 can not only support the connecting plate 4, but also fix the center position of the section and effectively control the pouring thickness.

Claims

1. A quick-release and quick-assembly formwork for reinforced concrete beams, characterized in that, The utility model relates to a kind of special-shaped upper corner moulds, which include two special-shaped upper corner moulds (1) arranged symmetrically, a pad (6) is arranged above the special-shaped upper corner moulds (1), and the two are connected by a first adjusting pull rod (3a). A special-shaped lower corner mould (2) is arranged below the special-shaped upper corner moulds (1), and a connecting plate (4) is arranged between the two. The connecting plate (4) is clamped with the special-shaped upper corner moulds (1) and the special-shaped lower corner mould (2) at both ends, and a plurality of adjusting lead screws (5) are arranged in the middle. The special-shaped upper corner mould (1) includes a first vertical plate (1a), and a first horizontal plate (1b), a second horizontal plate (1c) and a second vertical plate (1d) are sequentially arranged on the side of the first vertical plate (1a). The end of the first horizontal plate (1b) is connected with the end of the first vertical plate (1a), the end of the second horizontal plate (1c) is connected with the middle of the side of the first vertical plate (1a), the upper end of the second vertical plate (1d) is connected with the bottom of the second horizontal plate (1c), the side of the second vertical plate (1d) is attached to the side of the first vertical plate (1a), and the lower end of the second vertical plate (1d) exceeds the lower end of the first vertical plate (1a). The special-shaped lower corner mould (2) includes a third vertical plate (2a), and a third horizontal plate (2b) and a fourth horizontal plate (2c) are arranged on both sides of the third vertical plate (2a). The end of the third horizontal plate (2b) is connected with the middle of the side of the third vertical plate (2a), and a fourth vertical plate (2d) is arranged on the top of the third horizontal plate (2b). The bottom of the fourth vertical plate (2d) is connected with the top of the third horizontal plate (2b), the side of the fourth vertical plate (2d) is attached to the side of the third vertical plate (2a), and the top end of the fourth vertical plate (2d) exceeds the top end of the third vertical plate (2a). The end of the fourth horizontal plate (2c) is connected with the bottom of the third vertical plate (2a), and a fifth vertical plate (2e) and a fifth horizontal plate (2f) are arranged below the fourth horizontal plate (2c). The top end of the fifth vertical plate (2e) is connected with the middle of the bottom of the fourth horizontal plate (2c), the end of the fifth horizontal plate (2f) is connected with the side of the fifth vertical plate (2e), the top of the fifth horizontal plate (2f) is attached to the bottom of the fourth horizontal plate (2c), and the end of the fifth horizontal plate (2f) exceeds the end of the fourth horizontal plate (2c). The second horizontal plate (1c) and the third horizontal plate (2b) are connected by a second adjusting pull rod (3b). The fifth vertical plates (2e) adjacent to each other are connected by another second adjusting pull rod (3b).

2. The fast-assembly formwork for reinforcing concrete beams according to claim 1, characterized in that, The connecting plate (4) is made of bamboo plywood.

3. The fast-assembly formwork for reinforcing concrete beams according to claim 1, wherein The special-shaped upper corner mould (1) and the special-shaped lower corner mould (2) are made of aluminum alloy.