Adjustable bottom cross beam assembly of multi-curvature camber beam extradosed cable-stayed bridge hanging basket

Abstract

The utility model discloses an adjustable bottom cross beam assembly of a multi-curvature camber beam extradosed cable-stayed bridge hanging basket. Relates to the technical field of cable-stayed bridge hanging basket construction, and comprises a bottom cross beam which is divided into two sections from a cross slope change point, and a gap is arranged between the two sections of bottom cross beam; the two connecting pieces are arranged in the gap, each connecting piece comprises a connecting plate and a pin shaft hole plate, the connecting plates are connected with the bottom cross beam, the pin shaft hole plates are vertically arranged on the connecting plates, pin shaft holes are formed in the pin shaft hole plates, the pin shaft hole plates on the two connecting pieces make contact with each other, and the two pin shaft hole plates are hinged through a pin shaft. According to the utility model, the two sections of bottom cross beams are respectively provided with the connecting pieces, and the connecting pieces on the two sections of bottom cross beams are hinged through the pin shaft, so that the left bottom cross beam can be adjusted up and down, the elevation of the bottom die and the accuracy of the cross slope of the beam bottom are ensured, and compared with the conventional method, the operation is simple, the consumed time is shortened, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable-stayed bridge hanging basket construction, and more specifically to an adjustable bottom crossbeam component of a multi-curvature curved beam low-tower cable-stayed bridge hanging basket. Background Art

[0002] The construction basket is also called the construction basket. It is a major equipment for the segmented construction of prestressed concrete continuous beams, T-shaped steel structures and cantilever beams. It can move forward as a whole along the track. The construction basket can be: truss-type basket, triangle-type basket, diamond-shaped basket and inclined-type basket. It is most widely used in bridge construction.

[0003] When faced with the gradual change of the bridge beam height and the constantly changing cross slope of the beam bottom, which leads to the spatial torsion slope of the overall box beam, the accuracy of the bottom formwork elevation directly affects the thickness of the beam bottom plate, the beam height, and the cross slope of the bridge. The correct cross slope plays a key role in the beam body's resistance to torque and stability. At the same time, the structural dimensions and line shapes that meet the design requirements play an important role in the safe operation of the bridge after completion. The bottom formwork elevation adjustment control is one of the indispensable construction contents in the cantilever casting construction process. The time spent on this construction content will directly affect the total construction period of the project. The use of adjustable bottom crossbeam components can save time spent in this process, which plays a key role in the smooth completion of the project within the contract period.

[0004] However, the bottom cross beam of a conventional hanging basket is a straight steel structure. When the horizontal slope of the bottom beam changes, wedges or jacks are needed under the bottom formwork to adjust the bottom formwork to match the change in the horizontal slope of the bottom beam. The wedges need to be customized, requiring large investments in labor and materials, and the process is cumbersome and time-consuming. The construction steps of a conventional hanging basket are cumbersome and difficult to adjust. If there is no innovative approach to adjusting the elevation of the bottom formwork of the hanging basket, it will affect the project's construction period and quality.

[0005] Therefore, how to provide an adjustable bottom cross beam assembly for a multi-curvature curved beam low-tower cable-stayed bridge hanging basket that can ensure the accuracy of the bottom formwork elevation and the bottom cross slope of the beam while making the operation simple and time-saving is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] In view of this, the utility model provides an adjustable bottom cross beam assembly for a multi-curvature curved beam low-tower cable-stayed bridge hanging basket, aiming to solve one of the problems in the above-mentioned background technology, and can ensure the accuracy of the bottom mold elevation and the cross slope of the bottom of the beam, while making the operation simple and time-saving.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An adjustable bottom crossbeam assembly of a hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge, comprising:

[0009] A bottom cross beam, wherein the bottom cross beam is divided into two sections from a cross slope change point, and a gap is provided between the two sections of the bottom cross beam;

[0010] A connecting member, wherein two connecting members are provided, and both connecting members are provided in the gap, and each connecting member comprises a connecting plate and a pin hole plate, and the connecting plate is connected to the bottom cross beam, and the pin hole plate is vertically provided on the connecting plate, and a pin hole is provided on the pin hole plate, and the pin hole plates on the two connecting members are in contact with each other, and the two pin hole plates are hinged by a pin.

[0011] Furthermore, the connecting plate and the pin hole plate are welded on both sides, and three pin hole plates are welded on each connecting plate.

[0012] Furthermore, the three pin shaft hole plates are equidistantly distributed on the connecting plate, and the pin shafts pass through the pin shaft holes on the six pin shaft hole plates in sequence.

[0013] Furthermore, it also includes stiffening ribs, which are respectively connected to the connecting plate and the pin shaft hole plate, and the stiffening ribs are vertically arranged at the welding position of the connecting plate and the pin shaft hole plate.

[0014] Furthermore, all of the pin hole plates are bent at one end away from the connecting plate.

[0015] Furthermore, the connecting member is provided with an anchor point, and the two connecting members are respectively anchored to the two sections of the bottom beam through the anchor point.

[0016] Furthermore, each of the connecting plates is provided with a plurality of bolt holes, and each of the connecting plates is detachably connected to the bottom cross beam via bolts.

[0017] It can be seen from the above technical scheme that compared with the prior art, the utility model discloses an adjustable bottom crossbeam assembly for a hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge, by respectively providing connecting parts for the bottom crossbeam divided into two sections, and the connecting parts between the two sections of the bottom crossbeam are hinged by a pin shaft. After the hanging basket is pushed forward, the bottom crossbeam at one end of the cross slope change can be lowered or lifted until the slope required by the design is reached, thereby ensuring the accuracy of the bottom mold elevation and the cross slope of the bottom of the beam, and realizing that the left bottom crossbeam can be adjusted up and down. Compared with conventional operation methods, it is simpler, less time-consuming, and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the installation of an adjustable bottom cross beam assembly of a hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge provided by the utility model;

[0020] Figure 2 A front view of two connecting members provided by the utility model being hinged by a pin;

[0021] Figure 3 A top view of two connecting members provided by the utility model being hinged by a pin;

[0022] Figure 4 A side structural diagram of the connecting piece provided by the utility model;

[0023] Figure 5 A top view of the structure of the connecting piece provided by the utility model;

[0024] Figure 6 This is a structural schematic diagram of the connecting plate provided by the utility model.

[0025] Among them: 1 is the bottom beam; 2 is the gap; 3 is the connecting piece; 4 is the connecting plate; 5 is the pin hole plate; 6 is the pin hole; 7 is the pin; 8 is the stiffening rib; 9 is the bolt hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] See also Figure 1-6 The utility model discloses an adjustable bottom cross beam assembly of a hanging basket of a multi-curvature curved beam low tower cable-stayed bridge, comprising:

[0028] A bottom cross beam 1, the bottom cross beam 1 is divided into two sections from the cross slope change point, and a gap 2 is set between the two sections of the bottom cross beam 1;

[0029] Connecting piece 3, two connecting pieces 3 are arranged, both of which are arranged in gap 2, each connecting piece 3 includes connecting plate 4 and pin hole plate 5, connecting plate 4 is connected to bottom cross beam 1, pin hole plate 5 is vertically arranged on connecting plate 4, pin hole 6 is arranged on pin hole plate 5, pin hole plates 5 on two connecting pieces 3 are in contact with each other, and two pin hole plates 5 are hinged by pin 7; by respectively arranging connecting pieces 3 between bottom cross beam 1 divided into two sections, connecting pieces 3 between two sections of bottom cross beam 1 are hinged by pin 7, after the hanging basket is pushed forward, bottom cross beam 1 at one end of cross slope change can be lowered or lifted until the slope required by design is reached, thereby ensuring the accuracy of bottom formwork elevation and cross slope of bottom beam, and realizing that left bottom cross beam 1 can be adjusted up and down.

[0030] In this embodiment, the connecting plate 4 and the pin hole plate 5 are welded on both sides, and three pin hole plates 5 are welded on each connecting plate 4; the welding between the connecting plate 4 and the pin hole plate 5 is more stable; by providing three pin hole plates 5, the force stability between the two connecting parts 3 is improved.

[0031] In this embodiment, three pin hole plates 5 are evenly spaced on the connecting plate 4. The two connecting parts 3 can be hinged by the pin shaft 7 passing through the pin holes 6 on the six pin hole plates 5 in sequence, so that the left bottom cross beam 1 can be adjusted up and down.

[0032] In this embodiment, it also includes stiffening ribs 8, which are respectively connected to the connecting plate 4 and the pin shaft hole plate 5, and the stiffening ribs 8 are vertically arranged at the welding position of the connecting plate 4 and the pin shaft hole plate 5; by arranging the stiffening ribs 8, the stability of the pin shaft hole plate 5 is ensured and the concentrated force is transmitted, thereby improving the stability and torsional resistance of the connection between the two connecting parts 3.

[0033] In this embodiment, all the ends of the pin hole plates 5 away from the connecting plate 4 are bent; the bending arrangement improves the stability of the two connecting members 3 and facilitates the hinge connection between the two connecting members 3 through the pin 7.

[0034] In this embodiment, anchor points are provided on the connecting members 3, and the two connecting members 3 are anchored to the two sections of the bottom beam 1 respectively through the anchor points; this makes the two connecting members 3 stable, safe and reliable in force, and improves the connection stability between the connecting members 3 and the bottom beam 1.

[0035] In this embodiment, each connecting plate 4 is provided with a plurality of bolt holes 9, and each connecting plate 4 is detachably connected to the bottom cross beam 1 by bolts; the overall stability and safety performance of the bolt connection are better, and the installation of the connecting member 3 is more convenient, saving time.

[0036] In addition, in this embodiment, the number of the pin hole plates 5 welded on each connecting plate 4 can be increased or decreased according to actual conditions.

[0037] The connecting plate 4 is made of Q235 steel plate, the size of the connecting plate 4 is set to 60cm*70cm*2cm, the bolt hole 9 is set to a Φ24mm hole, and the bolt hole 9 is adapted to an M22 bolt.

[0038] The pin hole plate 5 is made of 2cm thick Q235 steel plate, and the pin hole 6 is set to Φ103mm.

[0039] The anchor rods used to anchor the two connecting members 3 to the two sections of the bottom beam 1 through anchor points are Φ32 finely rolled threaded steel bars.

[0040] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0041] 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. An adjustable bottom cross beam assembly for a hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge, characterized in that: include: A bottom cross beam, wherein the bottom cross beam is divided into two sections from a cross slope change point, and a gap is provided between the two sections of the bottom cross beam; A connecting member, wherein two connecting members are provided, and both connecting members are provided in the gap, and each connecting member comprises a connecting plate and a pin hole plate, and the connecting plate is connected to the bottom cross beam, and the pin hole plate is vertically provided on the connecting plate, and a pin hole is provided on the pin hole plate, and the pin hole plates on the two connecting members are in contact with each other, and the two pin hole plates are hinged by a pin.

2. The adjustable bottom cross beam assembly of the hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge according to claim 1 is characterized in that: The connecting plate and the pin hole plate are welded on both sides, and three pin hole plates are welded on each connecting plate.

3. The adjustable bottom cross beam assembly of the hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge according to claim 2 is characterized in that: The three pin shaft hole plates are evenly distributed on the connecting plate, and the pin shafts are sequentially passed through the pin shaft holes on the six pin shaft hole plates.

4. The adjustable bottom cross beam assembly of the hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge according to claim 2 is characterized in that: It also includes stiffening ribs, which are respectively connected to the connecting plate and the pin shaft hole plate, and the stiffening ribs are vertically arranged at the welding position of the connecting plate and the pin shaft hole plate.

5. The adjustable bottom cross beam assembly of the hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge according to claim 1 is characterized in that: All the ends of the pin shaft hole plates away from the connecting plate are bent.

6. The adjustable bottom cross beam assembly of the hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge according to claim 1, characterized in that: Anchor points are arranged on the connecting member, and the two connecting members are respectively anchored on the two sections of the bottom cross beam through the anchor points.

7. The adjustable bottom cross beam assembly of the hanging basket of a multi-curvature curved beam low-tower cable-stayed bridge according to claim 1 is characterized in that: Each of the connecting plates is provided with a plurality of bolt holes, and each of the connecting plates is detachably connected to the bottom cross beam via bolts.

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