Splicing type steel formwork for bridge wet joint construction

Abstract

The utility model provides a splicing type steel formwork for bridge wet joint construction, which comprises a shaped steel bottom formwork, the shaped steel bottom formwork comprises a top steel plate, a cross-shaped reinforcing steel sheet is welded on the lower surface of the top steel plate, a screw is vertically welded on the upper surface of the top steel plate, and a screw fixing point is positioned at the cross-shaped intersection of the reinforcing steel sheet. Skirts for splicing are welded to the longitudinal edge and the transverse edge of the top face of the top steel plate, and splicing holes are formed in the skirts for splicing. The formwork is low in manufacturing cost, convenient to install in the wet joint construction process, good in appearance after being poured, simple in structure, high in strength, not prone to damage, capable of being repeatedly used, capable of saving material loss, convenient to install integrally and capable of being used in a spliced mode according to actual conditions, and the formwork can be well supported and is good in appearance after being poured, and the whole formwork is simple in structure, high in strength, not prone to damage and capable of being repeatedly used.

Description

Technical Field

[0001] This utility model belongs to the field of bridge wet joint construction technology, and in particular relates to a spliced ​​steel formwork for bridge wet joint construction. Background Technology

[0002] Bridge construction has always been a crucial part of infrastructure projects. With the continuous development of infrastructure, the number of bridge projects is increasing. To expedite construction, precast box girders are widely used in bridge construction. Wet joints are a necessary construction step after the precast box girders are erected. The installation of formwork before pouring concrete at wet joints has always been a tedious and material-intensive process. Traditionally, wet joint formwork installation mostly uses wooden planks. This involves cutting and dividing the planks, reinforcing the formwork with timber, and then using tie rods and ropes to install the formwork. This method is cumbersome, time-consuming, and the processed wooden formwork is easily damaged and rarely reused. Furthermore, the surface smoothness and appearance of the wet joint after pouring concrete from the wooden formwork are poor.

[0003] To address the aforementioned issues, this invention presents a modular steel formwork for the construction of wet joints in bridges. This formwork is reusable, saving material waste, reducing difficulties for workers during installation, and improving the appearance quality of the wet joints after pouring. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a spliced ​​steel formwork for bridge wet joint construction, which can effectively solve problems such as cumbersome construction, high material waste, and poor construction quality in traditional wet joint construction.

[0005] This utility model achieves the above-mentioned technical objectives through the following technical means.

[0006] A type of splicing steel formwork for the construction of wet joints in bridges includes a standardized steel bottom formwork. The standardized steel bottom formwork includes a top steel plate. A cross-shaped reinforcing steel plate is welded to the lower surface of the top steel plate. A screw is vertically welded to the upper surface of the top steel plate, and the welding positioning point of the screw is located at the intersection of the cross-shaped reinforcing steel plate. Splicing skirts are welded to both the longitudinal and transverse sides of the top surface of the top steel plate, and splicing holes are opened on the splicing skirts.

[0007] Furthermore, the top steel plate, reinforcing steel sheet, and splicing skirt are all made of steel plates with a thickness greater than 1mm.

[0008] Furthermore, the dimensions of the top steel plate are 100cm × 50cm × 6cm.

[0009] Furthermore, the width of the hem used for splicing is 5cm.

[0010] Furthermore, the screw is an M14 screw with a length of 50cm.

[0011] This utility model has the following beneficial effects:

[0012] This utility model is inexpensive, easy to install during wet joint construction, can provide good formwork support, and has a good appearance after pouring. The entire formwork structure is simple, strong, not easy to damage, reusable, saves material waste, and is easy to install as a whole. It can be spliced ​​and used according to actual conditions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the horizontal assembly of the splicing steel formwork described in this utility model;

[0014] Figure 2 This is a schematic diagram of the spliced ​​steel formwork structure described in this utility model;

[0015] In the diagram: 1-Screw, 2-Splicing hole, 3-Splicing skirt, 4-Reinforcing steel sheet, 5-Top steel plate. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0017] like Figure 1 , 2 As shown, the splicing steel formwork for bridge wet joint construction described in this utility model includes a standardized steel bottom formwork, a screw rod 1, and a splicing skirt 3.

[0018] like Figure 1 , 2 As shown, the standardized steel bottom mold includes a top steel plate 5 and reinforcing steel plates 4; both the top steel plate 5 and the reinforcing steel plates 4 are made of steel plates with a thickness greater than 1mm. The top steel plate 5 has dimensions of 100cm×50cm×6cm; multiple reinforcing steel plates 4 are spliced ​​into a "+" shape and welded to the bottom of the top steel plate 5.

[0019] like Figure 1 , 2 As shown, screw 1 is an M14 screw with a length of 50cm; screw 1 is fixed to the upper surface of the top steel plate 5 and located at the "+" intersection of the reinforcing steel plate 4.

[0020] like Figure 1 , 2 As shown, the splicing skirt 3 is made of steel plate with a thickness greater than 1mm. The top steel plate 5 has 5cm wide splicing skirts 3 welded on both the longitudinal and transverse sides. The longitudinal skirt has four splicing holes 2 and the transverse skirt has two splicing holes 2.

[0021] Reference Figure 1 , 2 As shown, the application of the spliced ​​steel formwork for bridge wet joint construction described in this utility model in actual construction is as follows:

[0022] When constructing wet joints on bridges, determine the required number of standardized steel bottom molds for both longitudinal and transverse directions based on the drawings and actual site conditions.

[0023] The required prefabricated steel bottom mold is assembled (the specific assembly parts are conventional techniques in this field and will not be described in detail), and then the top surface of the prefabricated steel bottom mold is polished and coated with a release agent.

[0024] The shaped steel bottom mold is hoisted to the bottom of the wet joint using the hoisting method, and a PVC pipe is sleeved on the screw rod 1.

[0025] The bridge deck is secured with 48×2.5mm double steel pipes, and the secondary beams are secured with 40×90mm square timber and butterfly clips.

[0026] This invention is simple to manufacture, not easily damaged, and reusable. It not only ensures the appearance quality of wet joints but also improves the work efficiency of workers under adverse conditions, thus guaranteeing the progress of the project.

[0027] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention shall fall within the protection scope of the present invention.

Claims

1. A spliced ​​steel formwork for wet joint construction of bridges, characterized in that, The mold includes a standardized steel bottom mold, which includes a top steel plate (5). A cross-shaped reinforcing steel sheet (4) is welded to the lower surface of the top steel plate (5). A screw (1) is vertically welded to the upper surface of the top steel plate (5), and the welding positioning point of the screw (1) is located at the cross-shaped intersection of the reinforcing steel sheet (4). Both longitudinal and transverse sides of the top surface of the top steel plate (5) are welded with splicing skirts (3), and splicing holes (2) are opened on the splicing skirts (3).

2. The spliced ​​steel formwork for bridge wet joint construction according to claim 1, characterized in that, The top steel plate (5), reinforcing steel sheet (4), and splicing skirt (3) are all made of steel plate with a thickness greater than 1mm.

3. The spliced ​​steel formwork for bridge wet joint construction according to claim 1, characterized in that, The top steel plate (5) has dimensions of 100cm×50cm×6cm.

4. The spliced ​​steel formwork for bridge wet joint construction according to claim 1, characterized in that, The width of the hem (3) used for splicing is 5cm.

5. The spliced ​​steel formwork for bridge wet joint construction according to claim 1, characterized in that, The screw (1) is an M14 screw with a length of 50cm.

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