Prefabricated reinforced concrete box culvert prefabricated frame

Abstract

The utility model relates to the field of box culverts, and discloses an assembly type reinforced concrete box culvert prefabricated frame which comprises a box culvert, the box culvert is formed by combining four steel mold side plates and a steel mold bottom plate, the steel mold side plates are distributed in a rectangular shape, and the steel mold bottom plate is arranged below the four steel mold side plates; the joints of every two adjacent steel mould side plates are connected through a first right-angle steel plate; second right-angle steel plates, steel mold side plates and a steel mold bottom plate are fixedly connected through bolts, then primary assembly of the box culvert can be rapidly and conveniently completed, then an inner mold is inserted into a through opening of the box culvert, then a connecting block and an inserting plate are connected in an inserted mode, the inserting plate and the connecting block are fixed through an inserting rod, and therefore the box culvert can be conveniently and rapidly assembled. And after the four steel mold side plates and the four first right-angle steel plates are installed, connecting rods penetrate through the two transverse steel plates, the connecting rods are fixedly connected with the two transverse steel plates through nuts, and the stability of the box culvert can be improved through the connecting rods, the nuts and the transverse steel plates.

Description

Technical Field

[0001] The present application relates to the field of box culverts, and in particular to a prefabricated frame of an assembled reinforced concrete box culvert. Background Art

[0002] Reinforced concrete slab culverts are often used in off-site highway and first-class highway construction, especially in northern China, where the climate is cold and the effective construction period is short. Reinforced concrete slab culverts primarily require on-site reinforcement, formwork, and concrete pouring, requiring long curing periods before they can be put into use. The construction period is long and is significantly affected by weather conditions. Excavation is prone to various accidents, posing significant risks to personal and property safety. For this reason, prefabricated box culvert technology has emerged.

[0003] Prefabricated and assembled box culvert is a box-shaped structure made of prefabricated reinforced concrete. It is a fast construction process for box culverts. It mainly adopts centralized prefabrication on site and can be prefabricated in the factory in advance. It has a fast production speed and the construction quality is easy to control. It has fast mechanical transportation and on-site assembly construction speed, which can effectively shorten the construction period. It has the advantages of easy control of construction quality, short construction period and high construction efficiency.

[0004] In actual construction, it was found that the construction of box culverts occupied a considerable part of the project period. The excessive on-site pouring and maintenance period of the box culverts greatly affected the construction progress of the project, and to a large extent caused the extension of the project period and the waste of manpower and material resources. Once there was an error in the assembly, re-construction was required, which affected the construction quality and increased the difficulty of construction. At the same time, there was a risk of the template falling off easily. Utility Model Content

[0005] In order to solve the problem that the on-site pouring and maintenance period of box culverts is too long, which greatly affects the construction progress of the project. Once there is an error in the assembly, re-construction is required, which affects the construction quality and increases the difficulty of construction. At the same time, there is a risk of the template easily falling off. This application provides an assembled reinforced concrete box culvert prefabricated frame.

[0006] The prefabricated reinforced concrete box culvert frame provided in this application adopts the following technical solution:

[0007] The prefabricated frame of the assembled reinforced concrete box culvert includes a box culvert, which is composed of a steel formwork side plate and a steel formwork bottom plate. There are four steel formwork side plates and they are distributed in a rectangular shape. The steel formwork bottom plate is arranged below the four steel formwork side plates. The intersections of two adjacent steel formwork side plates are connected by a first right-angle steel plate. The four side surfaces of the steel formwork bottom plate are respectively connected to the four steel formwork bottom plates by a second right-angle steel plate. The box culvert is connected to the inner formwork by fasteners, and a casting trough is formed between the inner formwork and the box culvert.

[0008] Preferably, the first right-angle steel plate is connected to the steel formwork side plate by bolts, and the second right-angle steel plate is connected to the steel formwork side plate and the steel formwork bottom plate by bolts.

[0009] Preferably, two horizontal steel plates are arranged parallel to each other on the outer wall of each steel mold side plate, and two adjacent horizontal steel plates are connected by a connecting rod. The two ends of the connecting rod pass through the two horizontal steel plates and extend outward to be sleeved with nuts.

[0010] Preferably, the fastener includes a connecting block, which is connected to the inner mold through screws, and the connecting block is provided with an insert plate, and the top surface of the connecting block is provided with an insert rod, which passes through the insert plate and extends downward.

[0011] Preferably, slurry-stopping tapes are pasted on the joints of the four steel formwork side panels and the joints between the steel formwork bottom plate and the four steel formwork side panels.

[0012] In summary, this application has the following beneficial technical effects:

[0013] The four steel formwork side panels are spliced ​​in a rectangular shape, and the four first right-angle steel plates are placed at the intersection of the four steel formwork side panels respectively, and the first right-angle steel plates and the steel formwork side panels are fixedly connected by bolts. Similarly, the four second right-angle steel plates are placed at the intersection of the steel formwork bottom plate and the four steel formwork side panels, and the second right-angle steel plates are fixedly connected to the steel formwork side panels and the steel formwork bottom plate by bolts, so that the preliminary assembly of the box culvert can be completed quickly and conveniently. The inner formwork is then inserted into the opening of the box culvert, and the connecting block is then plugged into the plug plate, and the plug plate and the connecting block are fixed by the plug rod, so that the inner formwork and the box culvert are fixedly installed. After the four steel formwork side panels and the four first right-angle steel plates are installed, the connecting rod is passed through the two cross steel plates, and the connecting rod is fixedly connected to the two cross steel plates by nuts. The stability of the box culvert can be increased by the connecting rod, nuts and cross steel plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural front view of an embodiment of the application;

[0015] Figure 2 This is a bottom view of the structure of the embodiment of the application;

[0016] Figure 3 It is a structural exploded diagram of an embodiment of the application;

[0017] Figure 4 It is a schematic structural diagram of the first right-angle steel plate and the second right-angle steel plate of the embodiment of the application.

[0018] Figure 5 It is a schematic structural diagram of a fastener according to an embodiment of the application.

[0019] Explanation of the accompanying reference numerals: 1. Steel formwork side plate; 2. Inner formwork; 3. First right-angle steel plate; 4. Horizontal steel plate; 5. Connecting rod; 6. Casting trough; 7. Steel formwork bottom plate; 8. Second right-angle steel plate; 10. Connecting block; 11. Insert rod; 12. Insert plate; 13. Fastener. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5 This application is described in further detail.

[0021] The present application embodiment discloses a prefabricated reinforced concrete box culvert frame, referring to Figures 1-4 , including a box culvert, the box culvert is composed of a steel mold side plate 1 and a steel mold bottom plate 7. There are four steel mold side plates 1, and they are distributed in a rectangular shape. The steel mold bottom plate 7 is arranged below the four steel mold side plates 1. The intersection of two adjacent steel mold side plates 1 is connected by a first right-angle steel plate 3. The four sides of the steel mold bottom plate 7 are connected to the four steel mold bottom plates 7 respectively through a second right-angle steel plate 8. The first right-angle steel plate 3 is connected to the steel mold side plate 1 by bolts, and the second right-angle steel plate 8 is connected to the steel mold side plate 1 and the steel mold bottom plate 7 by bolts. The joints of the four steel mold side plates 1 and the steel mold The joints between the bottom plate 7 and the four steel formwork side plates 1 are all pasted with slurry-stopping tapes. The setting of the slurry-stopping tapes can prevent leakage and ensure that the joints are smooth. The four steel formwork side plates 1 are spliced ​​in a rectangular shape, and the four first right-angle steel plates 3 are placed at the intersection of the four steel formwork side plates 1, and the first right-angle steel plates 3 and the steel formwork side plates 1 are fixedly connected by bolts. Similarly, the four second right-angle steel plates 8 are placed at the intersection of the steel formwork bottom plate 7 and the four steel formwork side plates 1, and the second right-angle steel plates 8 are fixedly connected to the steel formwork side plates 1 and the steel formwork bottom plate 7 by bolts, thereby completing the preliminary assembly of the box culvert.

[0022] Reference Figure 1 and Figure 5 The box culvert is connected to the inner mold 2 by a fastener 13. A casting trough 6 is formed between the inner mold 2 and the box culvert. The fastener 13 includes a connecting block 10. The connecting block 10 is connected to the inner mold 2 by screws. The connecting block 10 is movably inserted with a plug plate 12. The top surface of the connecting block 10 is movably provided with an insert rod 11. The insert rod 11 passes through the plug plate 12 and extends downward. The inner mold 2 is inserted into the opening of the box culvert, and then the connecting block 10 is plugged with the plug plate 12, and the plug plate 12 is fixed to the connecting block 10 by the plug rod 11, so that the inner mold 2 and the box culvert are fixedly installed.

[0023] Reference Figure 1Two horizontal steel plates 4 parallel to each other are welded on the outer wall of each steel formwork side panel 1. The two adjacent horizontal steel plates 4 are movably connected by connecting rods 5. The two ends of the connecting rods 5 pass through the two horizontal steel plates 4 and are extended outward with nuts. When the four steel formwork side panels 1 and the four first right-angle steel plates 3 are installed, the connecting rods 5 are passed through the two horizontal steel plates 4, and the connecting rods 5 are fixedly connected to the two horizontal steel plates 4 by nuts. The stability of the box culvert can be increased by connecting rods 5, nuts and horizontal steel plates 4.

[0024] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0025] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0026] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0027] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. Prefabricated frame of assembled reinforced concrete box culvert, including box culvert, characterized by: The box culvert is composed of a steel mold side plate (1) and a steel mold bottom plate (7). The steel mold side plates (1) are provided with four and are distributed in a rectangular shape. The steel mold bottom plate (7) is arranged below the four steel mold side plates (1). The intersections of two adjacent steel mold side plates (1) are connected by a first right-angle steel plate (3). The four side surfaces of the steel mold bottom plate (7) are respectively connected to the four steel mold bottom plates (7) by a second right-angle steel plate (8). The box culvert is connected to the inner mold (2) by a fastener (13). A casting trough (6) is formed between the inner mold (2) and the box culvert.

2. The prefabricated frame of the assembled reinforced concrete box culvert according to claim 1 is characterized in that: The first right-angle steel plate (3) is connected to the steel form side plate (1) via bolts, and the second right-angle steel plate (8) is connected to the steel form side plate (1) and the steel form bottom plate (7) via bolts.

3. The prefabricated frame of the assembled reinforced concrete box culvert according to claim 1 is characterized in that: Two horizontal steel plates (4) are arranged parallel to each other on the outer wall of each steel mold side plate (1), and two adjacent horizontal steel plates (4) are connected by a connecting rod (5). The two ends of the connecting rod (5) pass through the two horizontal steel plates (4) and are extended outward to be sleeved with nuts.

4. The prefabricated frame of the assembled reinforced concrete box culvert according to claim 1 is characterized in that: The fastener (13) includes a connecting block (10), the connecting block (10) is connected to the inner mold (2) by screws, the connecting block (10) is provided with an inserting plate (12), the top surface of the connecting block (10) is provided with an inserting rod (11), the inserting rod (11) passes through the inserting plate (12) and extends downward.

5. The prefabricated frame of the assembled reinforced concrete box culvert according to claim 1 is characterized in that: The joints of the four steel mold side plates (1) and the joints between the steel mold bottom plate (7) and the four steel mold side plates (1) are all pasted with slurry-stopping tapes.

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