A cast-in-place beam construction support

Abstract

The utility model belongs to the technical field of bridge construction, and provides a cast-in-place beam construction support, including: an arch beam, a column and a scaffolding, wherein the arch beam is arranged directly below the cast-in-place beam template, and the outer arc of the arch beam is facing upward; the column is arranged below the end of the arch beam, and the arch beam is supported by the column, and a crossbeam is connected between the column and the adjacent pier body; the scaffolding is arranged between the arch beam and the cast-in-place beam template, and the upper end of the vertical rod of the scaffolding is against the bottom of the cast-in-place beam template, and a positioning plate is fixed at the lower end of the vertical rod of the scaffolding, and the positioning plate is inclined to adapt to the curvature of the top of the arch beam, so that the bottom surface of the positioning plate fits the top arc surface of the arch beam. The utility model abandons the traditional method of using steel pipe columns as the support foundation, and adopts a brand-new basic support system, which can effectively shorten the construction time of the support system, and the operation process is also extremely simple, which can greatly reduce the labor intensity of workers, thereby accelerating the progress of bridge construction.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and in particular relates to a cast-in-place beam construction bracket. Background Art

[0002] Scaffold construction refers to the construction of installing formwork on the scaffold, tying steel bar skeleton, and pouring concrete on site. Due to its relatively simple construction, relatively low cost, and very suitable for integral structures, it is widely used in bridge construction, especially in the construction of urban overpasses and viaducts.

[0003] At present, the most commonly used structural form of traditional supports is the full-height scaffolding. In recent years, there are also some systems with fewer supports that use steel pipe columns and Bailey beams, which can save a lot of scaffolding. However, this type of support system still requires a large number of steel pipe columns as basic supports. The construction time of the support is long, the operation process is complicated, the labor intensity of the workers is high, and the progress of bridge construction is relatively slow.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the problems in the prior art that the support system takes a long time to build, the workers have a high labor intensity, and the bridge construction progress is relatively slow, and to provide a cast-in-place beam construction support.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cast-in-place beam construction support comprises: an arch beam, a column and a scaffolding, wherein the arch beam is arranged directly below the cast-in-place beam formwork, and the outer arc of the arch beam is facing upward; the column is arranged below the end of the arch beam, and the arch beam is supported by the column, and a cross beam is connected between the column and the adjacent pier body; the scaffolding is arranged between the arch beam and the cast-in-place beam formwork, the upper end of the vertical rod of the scaffolding is against the bottom of the cast-in-place beam formwork, and a positioning plate is fixed to the lower end of the vertical rod of the scaffolding, and the positioning plate is inclined to adapt to the curvature of the top of the arch beam, so that the bottom surface of the positioning plate fits the top curved surface of the arch beam.

[0008] In the above cast-in-place beam construction support, preferably, the arch beam is formed by connecting multiple sections of arc beams;

[0009] Both ends of the arc-shaped beam and the upper end of the column are fixed with connecting plates.

[0010] Preferably, a plurality of through holes are provided on the surface of the connecting plate in the longitudinal direction;

[0011] The through hole is interspersed with arc-shaped reinforcing ribs, and the curvature of the reinforcing ribs is the same as the curvature of the arch beam;

[0012] The end of the reinforcing rib inserted in the through hole is flush with the end of the arch beam.

[0013] Preferably, the arc-shaped beam and the column are both I-beams.

[0014] Preferably, the connecting plate at the upper end of the column is inclined so that the connecting plate at the upper end of the column is fully fitted with the connecting plate at the corresponding end of the arc-shaped beam.

[0015] Preferably, a base is fixed to the lower end of the column.

[0016] Preferably, the size of the connecting plate is larger than the end surface size of the arc-shaped beam and the column.

[0017] Beneficial effects: The utility model abandons the traditional method of using steel pipe columns as the support of the bracket foundation, and adopts a new foundation support system, which can effectively shorten the construction time of the bracket system. The operation process is also extremely simple, which can greatly reduce the labor intensity of workers and thus speed up the progress of bridge construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0019] Figure 1 It is an overall schematic diagram of the practical application of the utility model;

[0020] Figure 2 It is a main schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the top view.

[0023] In the figure: 1. column; 2. beam; 3. scaffolding; 4. vertical rod; 5. positioning plate; 6. curved beam; 7. connecting plate; 8. reinforcing rib; 9. base. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0025] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0027] Embodiment: This embodiment aims to provide a cast-in-place beam construction support, the main function of which is to effectively shorten the construction time of the support system, simplify the operation process, greatly reduce the labor intensity of workers, and thus speed up the progress of bridge construction.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , including: an arch beam, a column 1 and a scaffold 3. The arch beam is arranged directly below the cast-in-place formwork, and the outer arc of the arch beam faces upward to correspond to the cast-in-place formwork. The arch beam is formed by connecting four sections of arc beams 6 to reduce the volume of the arch beam for easy transportation. The arc beam 6 is an I-beam. Both ends of the arc beam 6 are welded and fixed with connecting plates 7. The size of the connecting plate 7 is larger than the end face size of the arc beam 6. The connecting plate 7 can also be selected to use a flange plate. The connecting plates 7 at the ends of two adjacent arc beams 6 are fixed by bolts. In this way, the four sections of arc beams 6 are connected as a whole and assembled into an arch beam, wherein the fixing position of the bolts should be at the outer edge of the connecting plate 7.

[0029] Reference Figure 1 , Figure 2 and Figure 3The scaffolding 3 is arranged between the arch beam and the cast-in-place beam formwork. The scaffolding 3 can use a bowl-hook bracket or a disc-hook bracket. The upper end of the vertical rod 4 constituting the scaffolding 3 is against the bottom of the cast-in-place formwork. The lower end of the vertical rod 4 of the scaffolding 3 is welded and fixed with a positioning plate 5. The positioning plate 5 is inclined to adapt to the curvature of the top of the arch beam, so that the bottom surface of the positioning plate 5 can fully fit with the top curved surface of the arch beam, which is convenient for fixing the positioning plate 5 to the corresponding wing plate of the arc beam 6 using bolts.

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The left and right ends of the arch beam are supported by columns 1. The column 1 is connected with the adjacent pier body through the cross beam 2, so that the column 1 can transfer the lateral stress it receives to the pier body, thereby enhancing the stability of the column 1. The column 1 is also an I-beam. An inclined connecting plate 7 is fixed to the upper end of the column 1. The size of the connecting plate 7 is larger than the end face size of the column 1, so that the connecting plate 7 is fully fitted with the connecting plate 7 at the end of the adjacent curved beam 6, ensuring that the connecting plates 7 at the ends of the column 1 and the adjacent curved beam 6 are perfectly connected together, which makes it convenient for the staff to use bolts to fix the connecting plates 7 at the ends of the column 1 and the adjacent curved beam 6.

[0031] Reference Figure 2 , Figure 3 and Figure 4 The connecting plate 7 at the end of the arc-shaped beam 6 has three through holes (not shown in the figure) equidistantly distributed in the longitudinal direction for three reinforcing ribs 8 to pass through. The curvature of the reinforcing rib 8 must be the same as the curvature of the arch beam. Based on this, one end of the reinforcing rib 8 can be passed through the through hole on the leftmost connecting plate 7 in sequence to the through hole on the rightmost connecting plate 7. At this time, the end of the reinforcing rib 8 is flush with the end of the arch beam, that is, the length of the reinforcing rib 8 is consistent with the length of the arch beam, and the reinforcing rib 8 is in the groove of the arc-shaped beam 6, so that the ability of the arch beam to resist deformation is enhanced by the reinforcing rib 8.

[0032] During the actual construction, the column 1 is first fixed at a suitable position between two adjacent piers, and then the arch beam is pre-assembled, followed by inserting the reinforcing rib 8 into the through hole of the connecting plate 7 at the end of the arc beam 6. In the next step, the arch beam is hoisted above the column 1 and supported by the column 1. At this time, the connecting plate 7 at the upper end of the column 1 can limit the displacement of the reinforcing rib 8 to ensure the stability of the position of the reinforcing rib 8 so that the reinforcing rib 8 can give full play to its role. Finally, the scaffolding 3 is arranged above the arch beam. The operation process is simple and fast, with a low difficulty coefficient, which provides great convenience for workers.

[0033] In this embodiment, a base 9 is fixed to the lower end of the column 1 to increase the contact area between the lower end of the column 1 and the ground surface to avoid sinking in soft strata.

[0034] In this embodiment, the traditional method of using steel pipe columns 1 as the foundation support of the bracket is abandoned, and a new foundation support system is adopted, which can effectively shorten the construction time of the bracket system. The operation process is also extremely simple, which can greatly reduce the labor intensity of workers and thus speed up the progress of bridge construction. At the same time, a large activity space can be freed up under the bracket for the transfer of construction equipment, which is extremely convenient.

[0035] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A cast-in-place beam construction support, characterized in that: include: The arch beam is arranged directly below the cast-in-place beam formwork, and the outer arc of the arch beam is directed upward; A column is provided below the end of the arch beam, and the arch beam is supported by the column. A cross beam is connected between the column and the adjacent pier body; The scaffolding is arranged between the arch beam and the cast-in-place beam formwork, the upper end of the vertical rod of the scaffolding is against the bottom of the cast-in-place beam formwork, and a positioning plate is fixed to the lower end of the vertical rod of the scaffolding. The positioning plate is inclined to adapt to the curvature of the top of the arch beam, so that the bottom surface of the positioning plate fits with the top curved surface of the arch beam.

2. The cast-in-place beam construction support according to claim 1, characterized in that: The arch beam is formed by connecting multiple sections of arc beams; Both ends of the arc-shaped beam and the upper end of the column are fixed with connecting plates.

3. The cast-in-place beam construction support according to claim 2, characterized in that: The surface of the connecting plate is provided with a plurality of through holes along the longitudinal direction; The through hole is interspersed with arc-shaped reinforcing ribs, and the curvature of the reinforcing ribs is the same as the curvature of the arch beam; The end of the reinforcing rib inserted in the through hole is flush with the end of the arch beam.

4. The cast-in-place beam construction support according to claim 2, characterized in that: The arc-shaped beam and the column are both I-beams.

5. The cast-in-place beam construction support according to claim 4, characterized in that: The connecting plate at the upper end of the column is inclined so that the connecting plate at the upper end of the column is fully fitted with the connecting plate at the corresponding end of the arc-shaped beam.

6. The cast-in-place beam construction support according to claim 4, characterized in that: A base is fixed at the lower end of the column.

7. The cast-in-place beam construction support according to claim 2, characterized in that: The size of the connecting plate is larger than the end surface size of the arc-shaped beam and the column.

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