Device for reducing deflection of front lower cross beam of hanging basket of ultra-wide PC cable-stayed bridge

Abstract

The utility model discloses a device capable of being used for reducing deflection of a front lower cross beam of a hanging basket of an ultra-wide PC cable-stayed bridge. The device structurally comprises a vertical rod (1), a horizontal rod (2), an inclined rod (3), a transverse link (4) and a connecting plate (5), a vertical rod (1), a horizontal rod (2) and an inclined rod (3) in the device are main force transmission structures, the upper portion of the vertical rod (1) is connected with a corresponding lower chord of a front lower cross beam through a connecting plate (5), the lower portion of the vertical rod (1) is connected with the corresponding horizontal rod (2) and the inclined rod (3) through the connecting plate (5), and a transverse link (4) is a Z-shaped transverse link and transversely supported in a two-truss truss structure formed by splicing the horizontal rod (2), the vertical rod (1) and the inclined rod (3). According to the device, the problem that the deflection exceeds the limit due to the fact that a front lower cross beam of a conventional hanging basket is long during construction of the ultra-wide PC cable-stayed bridge is solved. The device is connected with the front lower cross beam of the hanging basket through the pin shaft, so that the device is convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the field of cantilever method hanging basket construction, in particular to a device which can be used to reduce the deflection of a front lower cross beam of a hanging basket of an ultra-wide PC cable-stayed bridge. Background Art

[0002] Cantilever construction is a common process in bridge construction and is usually carried out throughout the entire construction period. Generally, the length of the front lower beam of the cantilever is matched with the width of the bridge. Therefore, when constructing an ultra-wide PC cable-stayed bridge with a cantilever, the deflection of the front lower beam will be the focus of our attention. At present, the main ways to reduce the deflection of components include: (1) increasing the bending strength of the component section, but the economic benefits and availability are poor; (2) increasing the material strength, but the economic benefits and availability are poor; (3) increasing the support conditions, but there are more spatial constraints and the structural reusability is poor. Utility Model Content

[0003] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a device for reducing the deflection of the front lower beam of the hanging basket of an ultra-wide PC cable-stayed bridge. The device solves the problem that the front lower beam of the conventional hanging basket is too long during the construction of the ultra-wide PC cable-stayed bridge, resulting in excessive deflection. The device is connected to the front lower beam of the hanging basket through a pin shaft, and is convenient to install and disassemble.

[0004] The utility model is realized by constructing a device for reducing the deflection of the front lower cross beam of an ultra-wide PC cable-stayed bridge hanging basket, characterized in that the structure of the device comprises: a vertical rod (1), a horizontal rod (2), an oblique rod (3), a cross link (4), and a connecting plate (5); the vertical rod (1), the horizontal rod (2) and the oblique rod (3) in the device are the main force transmission structure, the upper part of the vertical rod (1) is connected to the corresponding lower chord rod of the front lower cross beam through the connecting plate (5), the lower part of the vertical rod (1) is connected to the corresponding horizontal rod (2) and the oblique rod (3) through the connecting plate (5), and the cross link (4) is a "Z"-shaped cross link, which is laterally supported in two truss structures assembled by the horizontal rod (2), the vertical rod (1) and the oblique rod (3).

[0005] Furthermore, the vertical rod (1) and the connecting plate (5) are welded, the lower chord of the front lower cross beam and the connecting plate (5) are connected by a pin; and the horizontal rod (2), the oblique rod (3) and the connecting plate (5) are connected by a pin.

[0006] Furthermore, the ends of the horizontal rod (2) are connected to the vertical rod (1) and the diagonal rod (3) via a connecting plate (5).

[0007] Furthermore, the end of the diagonal rod (3) is connected to the vertical rod (1), the horizontal rod (2) and the lower chord of the front lower cross beam through a connecting plate (5).

[0008] Furthermore, the connecting plate (5) is used for interconnecting the vertical rods, the horizontal rods and the diagonal rods, and is also used for connecting the device with the front lower cross beam of the hanging basket.

[0009] Furthermore, the device is connected to the front lower cross beam of the hanging basket through a pin shaft, and is very convenient to install and disassemble, and can be reused.

[0010] Furthermore, the vertical rods (1), horizontal rods (2) and diagonal rods (3) are all closed double-channel steels, the cross-joints (4) are closed channel steels, and the connecting plates (5) are steel plates.

[0011] The utility model has the following advantages: The utility model provides a device that can be used to reduce the deflection of the front lower beam of the hanging basket of an ultra-wide PC cable-stayed bridge; the device solves the problem that the front lower beam of the conventional hanging basket is long during the construction of an ultra-wide PC cable-stayed bridge, resulting in excessive deflection. The device is connected to the front lower beam of the hanging basket through a pin shaft, and is convenient to install and disassemble. (1) By installing this position on the front lower beam of the hanging basket, the deflection of the front lower beam of the hanging basket during casting can be reduced, making construction safer and more reliable. (2) The device is connected to the front lower beam of the hanging basket through a pin shaft, and is very convenient to install and disassemble and can be reused. (3) The device has a clear force structure and is simple to operate. It is more economical and reliable than traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1-Figure 2 is a schematic diagram of device application;

[0013] Figure 3-Figure 5 This is a detailed diagram of the device.

[0014] Among them: vertical pole 1, horizontal pole 2, diagonal pole 3, cross link 4, connecting plate 5. DETAILED DESCRIPTION

[0015] The following will be combined with the attached Figure 1-Figure 5 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The utility model provides a device for reducing the deflection of the front lower beam of the hanging basket of an ultra-wide PC cable-stayed bridge; the device solves the problem that the front lower beam of the conventional hanging basket is too long during the construction of the ultra-wide PC cable-stayed bridge, resulting in excessive deflection. The device is connected to the front lower beam of the hanging basket through a pin shaft, and is relatively convenient to install and disassemble.

[0017] As shown in the figure; the patented structure includes: a vertical pole 1, a horizontal pole 2, a diagonal pole 3, a cross link 4, and a connecting plate 5.

[0018] The implementation is: the vertical pole 1, the horizontal pole 2, and the diagonal pole 3 are all closed double channel steels; the cross link 4 is a closed channel steel; and the connecting plate 5 is a steel plate.

[0019] The specific structure of this patent is described in detail below:

[0020] The vertical rod 1 is a main force transmission structure, the upper part is connected to the lower chord of the front lower cross beam through a connecting plate 5, wherein the vertical rod and the connecting plate are welded, and the lower chord of the front lower cross beam and the connecting plate are connected by a pin; the lower part is connected to the horizontal rod and the diagonal rod through a connecting plate, wherein the vertical rod and the connecting plate are welded, and the horizontal rod, the diagonal rod and the connecting plate are connected by a pin.

[0021] The horizontal rod 2 is a main force transmission structure, and its end is connected to the vertical rod and the diagonal rod through a connecting plate.

[0022] The diagonal rod 3 is a main force transmission structure, and its end is connected to the vertical rod, the diagonal rod and the lower chord of the front lower cross beam through a connecting plate.

[0023] The cross-link 4: a "Z"-shaped cross-link, serves as a lateral support after the horizontal bars, vertical bars and diagonal bars are assembled into two truss structures.

[0024] The connecting plate 5 is used for connecting the vertical rods, the horizontal rods and the diagonal rods to each other, and is also used for connecting the device with the front lower cross beam of the hanging basket.

[0025] The use process of this device is as follows: first, assemble the vertical poles, horizontal poles and diagonal poles into a single truss, then connect them into a whole through a transverse connection, and finally splice them with the front lower beam through a pin shaft.

[0026] This patent has the following advantages and beneficial effects: (1) By installing this position on the front lower beam of the hanging basket, the deflection of the front lower beam of the hanging basket during pouring can be reduced, making the construction safer and more reliable. (2) The device is connected to the front lower beam of the hanging basket through a pin shaft, which is very convenient to install and disassemble and can be reused. (3) The device has a clear structure and is easy to operate. It is more economical and reliable than traditional methods.

[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for reducing the deflection of the front lower beam of an ultra-wide PC cable-stayed bridge cradle, characterized in that ； The structure of the device comprises: a vertical rod (1), a horizontal rod (2), an oblique rod (3), a cross-link (4), and a connecting plate (5); the vertical rod (1), the horizontal rod (2), and the oblique rod (3) in the device are the main force transmission structure; the upper part of the vertical rod (1) is connected to the corresponding lower chord rod of the front lower cross beam through the connecting plate (5); the lower part of the vertical rod (1) is connected to the corresponding horizontal rod (2) and the oblique rod (3) through the connecting plate (5); the cross-link (4) is a "Z"-shaped cross-link, which is laterally supported in two truss structures assembled by the horizontal rod (2), the vertical rod (1), and the oblique rod (3).

2. According to claim 1, a device for reducing the deflection of the front lower cross beam of an ultra-wide PC cable-stayed bridge basket, characterized in that; The vertical rod (1) and the connecting plate (5) are welded, the lower chord rod of the front lower cross beam and the connecting plate (5) are connected by a pin; and the horizontal rod (2), the oblique rod (3) and the connecting plate (5) are connected by a pin.

3. According to claim 1, a device for reducing the deflection of the front lower cross beam of an ultra-wide PC cable-stayed bridge basket, characterized in that: The ends of the horizontal rods (2) are connected to the vertical rods (1) and the diagonal rods (3) via connecting plates (5).

4. According to claim 1, a device for reducing the deflection of the front lower cross beam of an ultra-wide PC cable-stayed bridge basket, characterized in that: The ends of the diagonal rods (3) are connected to the vertical rods (1), the horizontal rods (2) and the lower chord rods of the front lower cross beams through the connecting plates (5).

5. According to claim 1, a device for reducing the deflection of the front lower cross beam of an ultra-wide PC cable-stayed bridge hanging basket, characterized in that; The connecting plate (5) is used for connecting the vertical rods, the horizontal rods and the diagonal rods to each other, and is also used for connecting the device to the front lower cross beam of the hanging basket.

6. According to claim 1, a device for reducing the deflection of the front lower cross beam of an ultra-wide PC cable-stayed bridge basket, characterized in that; The device is connected to the front lower cross beam of the hanging basket through a pin shaft. It is very convenient to install and disassemble and can be reused.

7. According to claim 1, a device for reducing the deflection of the front lower cross beam of an ultra-wide PC cable-stayed bridge basket, characterized in that: The vertical rod (1), horizontal rod (2) and diagonal rod (3) are all closed double channel steels, the cross link (4) is a closed channel steel, and the connecting plate (5) is a steel plate.

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