Sand cylinder fixing device for bridge construction

Abstract

The utility model discloses a sand cylinder fixing device for bridge construction, which comprises a fixed base arranged between a cross-core rod and I-shaped steel, an arc-shaped notch in surface contact with the cross-core rod is arranged at the bottom of the fixed base, and a limiting piece connected with a sand cylinder is arranged at the top of the fixed base. The limiting piece is used for limiting the sand cylinder; according to the sand cylinder fixing device for bridge construction provided by the utility model, the fixing device is arranged between the original I-shaped steel and the cross-core rod, and the contact surface of the bottom of the fixing device and the cross-core rod is changed into surface contact, so that the area of the contact surface is enlarged, and the stress transmission of the sand cylinder above the I-shaped steel is more stable; meanwhile, compared with traditional channel steel and I-shaped steel, the fixing device is lighter and more convenient to install, the construction period needed by temporary support erection is shortened, installation benefits are improved, the limiting piece arranged at the top of the fixing device and connected with the sand cylinder in a hooping mode also solves the problem that a traditional sand cylinder lacks limiting, and the fixing device is safer and more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and particularly relates to a fixing device for a sand cylinder used in bridge construction. Background Art

[0002] In bridge construction projects, the construction of tie beams or cap beams usually requires the erection of temporary supports. Different support forms can be used for different pier column forms and cylindrical pier columns with different radii. The main current technical methods are: the floor bracket method, the hoop method, the through-bar method, and the bracket method with corbel. Among them, the through-bar method has high versatility and is widely used.

[0003] Currently, when using the through-bar method for the construction of tie beams or cap beams, construction workers first pass the through-bar through the construction beam pier column with the help of an external hoisting device, then fix the I-beam on the top of the through-bar, and then set a sand cylinder on the top of the I-beam to finally form a temporary support structure for bridge construction. The force between the sand cylinder and the through-bar is mainly transmitted by the I-beam. However, the force contact surface between the I-beam and the through-bar is a line contact, and the stability is poor. In addition, the sand cylinder on the top surface of the I-beam also lacks a corresponding limiting structure, which poses a certain safety hazard. Content of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a fixing device for a sand cylinder used in bridge construction to solve the problem of force transmission between the bottom of the sand cylinder and the through-bar, and to add a limiting structure to fix the sand cylinder.

[0005] A fixing device for a sand cylinder used in bridge construction provided by the utility model includes a fixing base arranged between the through-bar and the I-beam. An arc-shaped notch in surface contact with the through-bar is arranged at the bottom of the fixing base, and a limiting member connected to the sand cylinder is arranged at the top of the fixing base. The limiting member is used to limit the sand cylinder.

[0006] Further, the limiting member includes a horizontally arranged U-shaped member and connecting screws respectively arranged at the ends of the U-shaped member in the vertical direction. The U-shaped member is sleeved on the sand cylinder and fixedly connected to the fixing base through the connecting screws.

[0007] Further, connection holes are symmetrically arranged at both ends of the top surface of the fixing base in the direction perpendicular to the length direction of the through-bar. The lower ends of the connecting screws pass through the connection holes and are fixedly connected to the fixing base through nuts.

[0008] Further, the open end of the U-shaped member faces outward in the length direction of the through-bar, and the connecting screws are located outside the I-beam.

[0009] Further, the ends of the U-shaped member and the upper ends of the connecting screws are fixed by welding.

[0010] Furthermore, the fixed base includes a top plate and a bottom plate, a plurality of connecting transverse plates are arranged between the top plate and the bottom plate at intervals along the length direction of the through rod, and the arc-shaped notches are provided on the bottom plate and the connecting transverse plates.

[0011] The beneficial effects of the utility model are as follows: the sand barrel fixing device for bridge construction provided by the utility model solves the problem of force transmission between the sand barrel and the through-rod, and the fixing device is arranged between the original I-beam and the through-rod and the contact surface between the bottom of the fixing device and the through-rod is changed to surface contact to increase the contact surface area, so that the force transmission of the sand barrel above the I-beam is more stable; at the same time, the fixing device is lighter than traditional channel steel and I-beam, and is easy to install, which reduces the construction period required for temporary support erection and improves installation efficiency, and the limit piece arranged on the top of the fixing device and connected with the sand barrel hoop also solves the problem of lack of limit in traditional sand barrels, which is safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0013] Figure 1 It is a schematic diagram of the overall structure of the medium sand cylinder fixing device of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the fixed support in the utility model;

[0015] Figure 3 It is a structural side view of the fixed support in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the position limiting member in the utility model;

[0017] Explanation of the reference numerals: 1- through rod; 2- I-beam; 3- sand cylinder; 4- fixed base; 5- limit piece; 6- nut; 401- top plate; 402- bottom plate; 403- connecting cross plate; 404- arc-shaped notch; 405- connecting hole; 501- U-shaped piece; 502- connecting screw. DETAILED DESCRIPTION

[0018] As shown in the figure, a fixing device for a sand cylinder used in bridge construction provided by the present utility model includes a fixing base 4 disposed between the through rod 1 and the I-beam 2. An arc-shaped notch 404 in surface contact with the through rod 1 is provided at the bottom of the fixing base 4, and a limiting member 5 connected to the sand cylinder 3 is provided at the top of the fixing base 4. The limiting member 5 is used to limit the sand cylinder 1. This fixing device mainly sets the fixing base 4 between the I-beam 2 and the through rod 1 in the prior art and changes the contact surface between the bottom of the fixing base 4 and the through rod 1 from the original line contact to surface contact, so as to increase the contact surface area between the bottom of the fixing base 4 and the through rod 1, and further make the force transmission of the sand cylinder 3 above the I-beam 2 more stable. Since the sand cylinder 1 is pressed between the I-beam and the upper member by its own gravity and the gravity of the upper member, but there is no limiting structure in the horizontal direction, there are certain safety hazards. Therefore, a limiting member 5 connected to the sand cylinder 1 is provided at the top of the fixing base 4, and its cooperation relationship is as Figure 1 shown, in which the upper part of the limiting member 5 is sleeved on the bottom of the sand cylinder 1, and the lower part is fixedly connected to the fixing base 4, so as to limit the sand cylinder 1 in the horizontal direction.

[0019] In this embodiment, the limiting member 5 includes a horizontally arranged U-shaped member 501 and connecting screws 502 respectively arranged at the ends of the U-shaped member in the vertical direction. The U-shaped member 501 is sleeved on the sand cylinder 3 and fixedly connected to the fixing base 4 through the connecting screws 502; combined with Figure 1 and Figure 4 shown, the limiting member 5 as a whole has an inverted L structure and includes a U-shaped member 501 with a U-shaped structure at the upper part and connecting screws 502 respectively arranged at the ends of the U-shaped member in the vertical direction. The U-shaped member 501 is formed by bending a round steel, mainly used to sleeve on the sand cylinder 3 to increase the longitudinal limit of the sand cylinder 3 and increase the anti-overturning property. The upper end of the connecting screw 502 is fixedly connected to the end of the U-shaped member, and the lower end is used to be fixedly connected to the top surface of the fixing base 4.

[0020] In this embodiment, connection holes 405 are symmetrically arranged at both ends of the top surface of the fixing base 4 in the direction perpendicular to the length direction of the through rod. The lower end of the connecting screw 502 passes through the connection hole 405 and is fixedly connected to the fixing base 4 through a nut 6; combined with Figure 1 and Figure 2 shown, the connection holes 405 are mainly arranged on the top surface of the fixing base 4 corresponding to the positions of the connecting screws 502, and nuts 6 are respectively arranged on both sides of the upper and lower sides of one connection hole to adjust the locking position of the connecting screw 502 on the fixing base 4 to ensure the use requirements.

[0021] In this embodiment, the open end of the U-shaped member 501 is arranged outward in the length direction of the through rod 1, and the connecting screw 502 is located outside the I-beam 2; combined with Figure 1As shown, the limiting member 5 and the fixed base 4 are arranged and connected in the illustrated manner, which can make the whole device more stable to ensure the stability of support and force transmission.

[0022] In this embodiment, the end of the U-shaped member 502 and the upper end of the connecting screw 502 are fixed by welding; the connection between the U-shaped member 502 and the connecting screw 502 is realized by using the welding process, which is convenient for the manufacture of the limiting member 5.

[0023] In this embodiment, the fixed base 4 includes a top plate 401 and a bottom plate 402. A plurality of connecting cross plates 403 are arranged at intervals between the top plate 401 and the bottom plate 402 along the length direction of the through rod 1. The arc-shaped notch 404 is formed on the bottom plate 402 and the connecting cross plates 403; combined with Figure 3 and Figure 4 As shown, the fixed base 4 is composed of a top plate 401, a bottom plate 402 and connecting cross plates 403 welded between the two. The top plate 401, the bottom plate 402 and the connecting cross plates 403 can be made of steel plates that are idle or discarded on site. The arc-shaped notch 404 is formed on the connecting cross plates 403, and the bottom plate 402 is correspondingly recessed below the arc-shaped notch 404; this fixing device is light in weight, easy to operate, saves construction process time and improves labor efficiency.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A fixing device for a sand cylinder used in bridge construction, characterized in that: It includes a fixed base arranged between the through rod and the I-beam. An arc-shaped notch in surface contact with the through rod is arranged at the bottom of the fixed base, and a limiting member connected to the sand cylinder is arranged at the top of the fixed base, and the limiting member is used to limit the sand cylinder.

2. The sand barrel fixing device for bridge construction according to claim 1, characterized in that: The limiting member includes a horizontally arranged U-shaped member and connecting screws respectively arranged at the ends of the U-shaped member in the vertical direction. The U-shaped member is sleeved on the sand cylinder and fixedly connected to the fixed base through the connecting screws.

3. The sand cylinder fixing device for bridge construction according to claim 2, characterized in that: Connecting holes are symmetrically arranged at both ends of the top surface of the fixed base in the direction perpendicular to the length direction of the through rod. The lower ends of the connecting screws pass through the connecting holes and are fixedly connected to the fixed base through nuts.

4. The sand barrel fixing device for bridge construction according to claim 2, wherein: The open end of the U-shaped member is arranged outward in the length direction of the through rod, and the connecting screws are located outside the I-beam.

5. The sand cylinder fixing device for bridge construction according to claim 2, characterized in that: The end of the U-shaped member and the upper end of the connecting screw are fixed by welding.

6. The sand barrel fixing device for bridge construction according to claim 1, wherein: The fixed base includes a top plate and a bottom plate, and a plurality of connecting cross plates are arranged at intervals between the top plate and the bottom plate in the length direction of the through rod, and the arc-shaped notch is opened on the bottom plate and the connecting cross plates.

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