A concrete formwork for road widening reconstruction project and a formwork erecting structure

Abstract

The application provides a road widening reconstruction engineering concrete formwork and a formwork erecting structure. The road widening reconstruction engineering concrete formwork comprises a steel plate, the length of the steel plate is 1m-2.5m, the thickness of the steel plate is 2mm-4mm, the height of the steel plate is greater than the thickness of the original concrete road by more than 8cm, and the maximum height of the steel plate is 50cm; a row of rope perforations is arranged in the middle of the steel plate, and a rope locking piece is arranged at the rope perforation. The formwork erecting structure comprises an anchoring rod and an anchoring rope, the road widening reconstruction engineering concrete formwork is vertically inserted into a foundation base, one end of the anchoring rope is fixed on the anchoring rod, the other end of the anchoring rope is fixed on the steel plate by the rope locking piece, and the steel plate is pulled and fixed. The concrete formwork is simple in structure, light in weight, convenient to use, the formwork erecting structure does not need a complex support system or large mechanical assistance, the formwork erecting process is simplified, and the construction cost is effectively saved.

Description

Technical Field

[0001] This application relates to the field of road construction technology, and in particular to a concrete formwork and formwork support structure for road widening and reconstruction projects. Background Technology

[0002] With the rapid development of Chinese society, the existing national and rural roads are gradually failing to meet social needs, necessitating widening and reconstruction. In traditional construction methods, edge support typically uses simple materials such as timber or red bricks as formwork. While this method is simple to operate, the materials themselves need to be stacked or assembled, making them prone to deformation and gaps that can lead to grout leakage during concrete pouring. This means that concrete grout seeps from the gaps in the formwork, affecting the integrity and density of the concrete. Furthermore, the time required to erect the formwork necessitates workers to work near the edges, posing safety risks.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Utility Model Content

[0004] The purpose of this application is to provide a concrete formwork and formwork support structure for road widening and reconstruction projects, so as to solve or alleviate the problems existing in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution: A concrete formwork for road widening and reconstruction projects includes a steel plate with a length of 1m-2.5m and a thickness of 2mm-4mm. The height of the steel plate is more than 8cm greater than the thickness of the original concrete road, and the maximum height of the steel plate is 50cm. A row of rope holes is opened in the middle of the steel plate, and rope locking devices are provided at the rope holes.

[0006] Furthermore, the outer side of the steel plate is fixed with a first reinforcing strip and a second reinforcing strip. The first reinforcing strip and the second reinforcing strip are respectively fixed on the steel plate above and below the rope hole. The reinforcing strip can be equal angle steel, L-shaped angle steel, square tube, channel steel, I-beam flat steel, etc.

[0007] Furthermore, the distance between two adjacent rope holes is 0.4m-0.7m.

[0008] Furthermore, the steel plate has a length of 2m, a height of 0.3m, and a thickness of 3mm.

[0009] Furthermore, the rope locking component includes a rope fixing bolt fixed at the rope through hole and a rope fixing nut that is threadedly matched with the rope fixing bolt. The circumferential surface of the rope fixing bolt is provided with a rope fixing groove that communicates with the rope through hole, and the rope fixing groove is arranged along the longitudinal direction of the rope fixing bolt.

[0010] This application also proposes a formwork support structure for the aforementioned road widening and reconstruction project concrete formwork, including anchor rods and anchor ropes. One end of the anchor rod is anchored in the original concrete road, and the other end extends from the side of the original concrete road. The road widening and reconstruction project concrete formwork is vertically inserted into the foundation. One end of the anchor rope is fixed to the anchor rod, and the other end is fixed to a steel plate by a rope locking device to pull and fix the steel plate.

[0011] Furthermore, the steel plate is inserted 8cm-15cm into the foundation.

[0012] Furthermore, the anchor rod is an anchoring steel bar or an expansion bolt.

[0013] Furthermore, the steel plates are laid along the original concrete road extension direction, and the joints of two adjacent steel plates are bonded together with double-sided adhesive.

[0014] Furthermore, an angle steel for reinforcement is fixed to the side of the steel plate facing away from the original concrete road. The outer side of the angle steel abuts against the upper surface of the foundation, serving as a limit for the insertion depth of the steel plate.

[0015] The technical solution of this application has the following beneficial effects: The concrete formwork structure of this application is simple, lightweight, and easy to reuse, effectively saving construction costs.

[0016] This application utilizes a concrete formwork support structure as the formwork for pouring concrete at the edge. Anchor rods, anchor ropes, and rope locking devices are used to tension and fix the concrete formwork inserted into the foundation. The joints between the formwork can be sealed with double-sided adhesive to prevent grout leakage and compensate for the quality defects existing in traditional construction. Moreover, it does not require a complex support system or large machinery assistance, simplifying the formwork process. It is particularly suitable for continuous operation of linear projects such as widening of adjacent roads, and greatly improves construction efficiency. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein: Figure 1 This is a schematic diagram of the concrete formwork for a road widening and renovation project according to an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the front sectional view of the template support structure according to an embodiment of the present utility model.

[0019] Figure 3 This is a top view of the template support structure according to an embodiment of the present utility model.

[0020] Figure 4 This is a side view of the template support structure according to an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures: 1-Steel plate, 2-Rope locking component, 3-First reinforcing strip, 4-Second reinforcing strip, 5-Anchor rope, 6-Anchor rod, 7-Rope groove. Detailed Implementation

[0022] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0023] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0024] Example 1 This embodiment specifically illustrates the concrete formwork for road widening and reconstruction projects.

[0025] like Figures 1 to 4 As shown, a concrete formwork for road widening and reconstruction projects includes a steel plate 1. The length of the steel plate 1 is 1m-2.5m (e.g., 1m, 1.2m, 1.5m, 1.8m, 2m, 2.2m, 2.5m), and the thickness is 2mm-4mm (e.g., 2mm, 3mm, 4mm). The height of the steel plate 1 is more than 8cm greater than the thickness of the original concrete road, and the maximum height of the steel plate 1 is 50cm. The height of the steel plate 1 can be 28cm, 30cm, 33cm, 35cm, 40cm, 42cm, 45cm, 50cm, etc. A row of rope holes is opened in the middle of the steel plate 1, and rope locking devices 2 are provided at the rope holes. The steel plate 1 of this application serves as the main body of the formwork, with moderate length, thin thickness, light weight, easy handling and quick on-site assembly, and easy insertion into the foundation.

[0026] Furthermore, such as Figures 1 to 4As shown, the outer side of the steel plate 1 is fixed with a first reinforcing strip 3 and a second reinforcing strip 4. The first reinforcing strip 3 and the second reinforcing strip 4 are welded and fixed to the steel plate 1 above and below the rope hole. The reinforcing strip can be an equal angle steel, an L-shaped angle steel, a square tube, a channel steel, an I-beam, a flat steel, etc. The reinforcing strip effectively improves the overall rigidity of the steel plate 1 and prevents bulging or deformation caused by the lateral pressure of concrete during the pouring process.

[0027] Furthermore, such as Figure 1 , Figure 4 As shown, the rope holes are evenly arranged in a row along the length of the steel plate 1, and the distance between two adjacent rope holes is 0.4m-0.7m.

[0028] In a preferred embodiment, the steel plate 1 has a length of 2m, a height of 0.3m, and a thickness of 3mm; the steel plate 1 has three rope holes, the center-to-center distance between two adjacent rope holes is 0.6m, and the distance between the center of the rope hole at the end and the end of the steel plate 1 is 0.4m.

[0029] The rope locking component 2 is used to temporarily fix the anchoring rope 5 to the steel plate 1. The rope locking component 2 can be the wire rope clamp, rope clip, etc., which are existing technologies. The rope locking component 2 can realize the quick installation and removal of the anchoring rope 5.

[0030] In one embodiment, the rope locking member 2 is a rope bolt that is vertically welded and fixed to the steel plate at the edge of the rope hole, and the anchoring rope 5 is made of steel wire, which is wound around and tied to the rope bolt after passing through the rope hole.

[0031] In a preferred embodiment, such as Figure 1 , Figure 4 As shown, the rope locking component 2 includes a rope-fixing bolt fixed at the rope through hole and a rope-fixing nut threadedly matching the rope-fixing bolt. The rope-fixing bolt has a rope-fixing groove 7 on its circumferential surface that communicates with the rope through hole, and the rope-fixing groove 7 is arranged longitudinally along the rope-fixing bolt. In use, one end of the anchoring rope 5 passes through the rope through hole and the rope-fixing groove 7, and is locked in place by the rope-fixing nut screwed onto the rope-fixing bolt. When it is necessary to remove the anchoring rope 5, the rope-fixing nut is loosened and the anchoring rope 5 is pulled out from the rope-fixing groove 7. The rope locking component 2 of this embodiment allows for convenient adjustment of the tension of the anchoring rope 5, achieving precise force control.

[0032] Example 2 This embodiment specifically illustrates the formwork support structure used in road widening and reconstruction projects.

[0033] like Figures 2-4As shown, the formwork support structure includes anchor rods 6 and anchor ropes 5. One end of the anchor rod 6 is anchored within the original concrete road, and the other end extends from the side of the original concrete road. The concrete formwork for the road widening and reconstruction project is vertically inserted into the foundation. One end of the anchor rope 5 is fixed to the anchor rod 6, and the other end is fixed to the steel plate 1 by the rope locking device 2, thus pulling and fixing the steel plate 1. The anchor rope 5 provides lateral traction to the steel plate 1 to resist the overturning force of the newly poured concrete, thereby improving the overturning and displacement resistance of the concrete formwork.

[0034] Furthermore, such as Figure 2 As shown, the steel plate 1 is inserted into the foundation at a depth of 8cm-15cm. This moderate insertion depth provides sufficient anti-overturning moment and lateral support while avoiding difficulties in removal or excessive disturbance to the foundation due to excessive insertion. Specifically, the insertion depth of the steel plate 1 into the foundation can be 8cm, 9cm, 10cm, 11cm, 12cm, 13cm, 14cm, or 15cm. Preferably, the height of the steel plate 1 is 30cm, and the insertion depth of the steel plate 1 into the foundation is one-third of the height of the steel plate 1, i.e., 10cm.

[0035] Furthermore, the anchoring rope 5 is a steel wire or steel wire rope, and the anchoring rod 6 is an anchoring rebar or an expansion bolt. Preferably, steel wire (such as #8 steel wire) and anchoring rebar are used. The anchoring rebar is 20-30cm long. One end of the anchoring rebar is anchored in the original concrete pavement through drilling and grouting / applying adhesive, and half of the anchoring rebar is anchored in the original concrete pavement. This is more conducive to the bonding of the old and new concrete and resists uneven settlement. For example, the anchoring rebar is 30cm long, made of threaded steel, anchored 15cm into the original concrete pavement, with 15cm protruding. The protruding part will eventually be buried in the newly poured concrete pavement. Expansion bolts can play the same role as anchoring rebars, but expansion bolts are more expensive than anchoring rebars; similarly, steel wire ropes are more expensive than steel wire.

[0036] Furthermore, the steel plate 1 is laid along the original concrete road extension direction, and the joints of two adjacent steel plates 1 are bonded with double-sided adhesive to prevent grout leakage from the joints and to facilitate the disassembly and reuse of the concrete formwork.

[0037] Furthermore, such as Figure 2 , Figure 4 As shown, the steel plate 1 is fixed with a first reinforcing strip 3 and a second reinforcing strip 4 on the side facing away from the original concrete road. Preferably, the first reinforcing strip 3 and the second reinforcing strip 4 are made of 3×3 equilateral angle steel. The second reinforcing strip 4 is located below the first reinforcing strip 3. The outer side of the second reinforcing strip 4 abuts against the upper surface of the foundation, serving as a limit for the insertion depth of the steel plate 1. This facilitates workers to quickly insert the steel plate 1 into the foundation and ensures the verticality and height consistency of the template installation.

[0038] During construction, the lower end of steel plate 1 is inserted into the foundation. One end of anchor rope 5 (8# steel wire) is tied to the anchoring rebar, and the other end passes through steel plate 1, securing it to the outside of steel plate 1 with rope locking device 2. The contact between adjacent formwork panels is sealed with double-sided tape (not shown in the diagram). The connected steel plate 1 is firmly fixed, preventing lateral displacement during concrete pouring and ensuring reliable concrete quality for the road widening section. The connecting steel wire also enhances the crack resistance of the concrete. During demolding, simply loosen the fixing nut, remove the steel wire, gently tap steel plate 1 to loosen it, and pull it out of the foundation. Steel plate 1 can be reused after simple cleaning.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A concrete formwork for road widening and reconstruction projects, characterized in that: The steel plate (1) has a length of 1m-2.5m and a thickness of 2mm-4mm. The height of the steel plate (1) is more than 8cm greater than the thickness of the original concrete road. The maximum height of the steel plate (1) is 50cm. A row of rope holes is opened in the middle of the steel plate (1), and a rope locking device (2) is provided at the rope holes.

2. The concrete formwork for road widening and reconstruction projects according to claim 1, characterized in that: The outer side of the steel plate (1) is fixed with a first reinforcing strip (3) and a second reinforcing strip (4), which are located above and below the rope hole, respectively.

3. The concrete formwork for road widening and reconstruction projects according to claim 1, characterized in that: At least two rope holes are provided on the steel plate (1); the distance between two adjacent rope holes is 0.4m-0.7m.

4. The road widening reconstruction project concrete form of claim 1, wherein: The steel plate (1) has a length of 2m, a height of 30cm, and a thickness of 3mm.

5. The concrete formwork for road widening and reconstruction projects according to claim 1, characterized in that: The rope locking component (2) includes a rope fixing bolt fixed at the rope through hole and a rope fixing nut that is threadedly matched with the rope fixing bolt. The circumferential surface of the rope fixing bolt is provided with a rope fixing groove (7) that communicates with the rope through hole. The rope fixing groove (7) is arranged along the longitudinal direction of the rope fixing bolt.

6. A formwork support structure for road widening and reconstruction projects using concrete formwork as described in any one of claims 1-5, characterized in that: It includes an anchor rod (6) and an anchor rope (5). One end of the anchor rod (6) is anchored in the original concrete road, and the other end extends from the side of the original concrete road. The concrete formwork of the road widening and renovation project is vertically inserted into the foundation. One end of the anchor rope (5) is fixed to the anchor rod (6), and the other end is fixed to the steel plate (1) by the rope locking member (2) to pull and fix the steel plate (1).

7. The template support structure according to claim 6, characterized in that: The steel plate (1) is inserted into the foundation 8cm-15cm.

8. The template support structure according to claim 6, characterized in that: The anchor rod (6) is an anchoring steel bar or an expansion bolt.

9. The template support structure according to claim 6, characterized in that: The steel plate (1) is laid along the direction of the original concrete road, and the joints of two adjacent steel plates (1) are bonded together with double-sided adhesive.

10. The formwork structure of claim 6, wherein: An angle steel for reinforcement is fixed to the side of the steel plate (1) facing away from the original concrete road. The outer side of the angle steel abuts against the upper surface of the foundation, serving as a limit for the insertion depth of the steel plate (1).

Images