A construction method for loading pallets and erecting assembled bridge piers

Abstract

The present invention provides a construction method for loading a pallet and erecting an assembled bridge pier, and relates to the technical field of bridge construction. The loading pallet includes a pallet body and a mobile trolley. The pallet body includes a track and a first groove structure suitable for loading a pier cap, and the track is arranged on both sides of the first groove structure; the mobile trolley includes a running assembly and a frame, the running assembly is in contact with the track and is suitable for running on the track, and the frame is provided with a second groove structure suitable for loading a pier body; there are multiple mobile trolleys, and the multiple mobile trolleys are arranged at intervals along the length direction of the pallet body, and each mobile trolley is suitable for independent running. In the present invention, each mobile trolley is in contact with the track through the running assembly and is suitable for running on the track, so that the spacing between adjacent mobile trolleys is adjustable, and can adapt to loading pier bodies and pier caps of different external dimensions, thereby making it more convenient to lift and erect assembled bridge piers.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge construction, and in particular to a construction method for loading a pallet and erecting an assembled bridge pier. Background Art

[0002] With the development of the times, the technology of bridge prefabricated construction has developed rapidly. At present, the technologies of manufacturing, transporting and erecting prestressed box girders for railways, highways, etc. are very mature, and a series of construction equipment such as transporters, beam lifting machines, beam transporters and bridge erection machines have been formed.

[0003] The dimensions of prestressed box girders on a line are basically the same, and the supporting construction equipment for lifting, transporting, and erecting the box girders is mature and stable. Unlike prestressed box girders, prefabricated bridge piers are divided into pier bodies and pier caps. Generally, each prefabricated bridge pier consists of two pier bodies and one pier cap. Because bridges need to be built in different terrains such as mountains, plains, and rivers, the external dimensions of bridge piers on a line are not the same, and even vary greatly. The lifting, transportation and erection of bridge piers need to be carried out alternately with the lifting, transportation and erection of box girders, that is, after lifting, transportation and erecting several bridge piers, the corresponding box girders must be lifted, transported and erected, which means that the lifting, transportation and erection of bridge piers must use construction equipment for lifting, transportation and erection of box girders. Existing construction equipment such as transporters, beam lifting machines, beam transporters and bridge erectors are very suitable for prestressed box girders. However, since the pier body and pier cap of prefabricated bridge piers have different shapes, sizes, weights, etc. from box girders, existing construction equipment used for erecting box girders cannot be directly used for the lifting, transportation and erection of prefabricated bridge piers. Summary of the invention

[0004] The technical problem solved by the present invention is how to make the lifting and erection of assembled bridge piers more convenient.

[0005] In order to solve the above problems, the present invention provides a loading pallet for loading assembled bridge piers, comprising:

[0006] A pallet body, the pallet body comprising a first groove structure and a track, the first groove structure being suitable for loading the pier cap, the track being arranged on both sides of the first groove structure in the width direction of the pallet body and extending along the length direction of the pallet body;

[0007] A mobile trolley, the mobile trolley comprising a running assembly and a frame, the running assembly is in contact with the track and is suitable for running on the track, the frame is provided with a second groove structure, and the second groove structure is suitable for loading the pier body;

[0008] The mobile trolleys are provided in plurality, and are arranged at intervals in the length direction of the tray body, and each of the mobile trolleys is suitable for independent movement.

[0009] Optionally, the running assembly includes wheels, which are in contact with the track and are suitable for running on the track.

[0010] Optionally, the running assembly further comprises a track clamp, which is arranged on both sides of the wheel in the length direction of the tray body and is suitable for limiting the sliding of the mobile trolley.

[0011] Optionally, the running assembly further includes a guide wheel, which is arranged on the inner side of the wheel and contacts the inner wall of the first groove structure, and the guide wheel is suitable for preventing the wheel from moving along the width direction of the first groove structure.

[0012] Optionally, the mobile trolley further comprises a support seat, wherein the support seat is disposed in the second groove structure, the support seat adopts an arc-shaped design, and is suitable for carrying the pier body.

[0013] Optionally, a plurality of the support seats are provided, and the plurality of the support seats are respectively arranged on the groove wall and / or the groove bottom of the second groove structure.

[0014] Optionally, a plurality of the second groove structures are provided, and the plurality of the second groove structures are spaced apart in the width direction of the frame.

[0015] Optionally, the loading tray further comprises a fixing seat, which is arranged at the bottom of the first groove structure and is suitable for fixing the pier cap.

[0016] Optionally, the loading pallet further includes a buffer, which is disposed on the pallet body. In the length direction of the pallet body, the buffer is disposed on one side of the first groove structure and is suitable for limiting the movement of the mobile trolley within the length range of the first groove structure.

[0017] Optionally, a lifting hole is provided on the tray body, and the lifting hole is provided on one side of the first groove structure in the length direction of the tray body.

[0018] In order to solve the above problems, the present invention also provides a construction method for erecting assembled bridge piers, which uses a transporter, a beam storage pedestal, a beam lifting machine, a beam transport vehicle, a bridge erecting machine and the above-mentioned loading pallet, and includes the following steps:

[0019] S1: loading the pier cap and the pier body of the assembled pier onto the loading pallet;

[0020] S2: Using the transporter to lift the loading pallet onto the beam storage pedestal;

[0021] S3: using the beam lifting machine to lift the loading pallet from the beam storage pedestal and place it on the beam transport vehicle;

[0022] S4: The beam transport vehicle carries the loading pallet to the primary beam feeding position at the rear of the bridge erecting machine;

[0023] S5: The carrying trolley of the beam transport vehicle and the front lifting trolley of the bridge erecting machine move the loading pallet through the middle leg of the bridge erecting machine to achieve secondary beam feeding.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] By arranging a first groove structure suitable for loading the pier cap on the pallet body and a second groove structure suitable for loading the pier body on the frame of the mobile trolley, it is convenient to load the pier cap and the pier body on the pallet body and the mobile trolley respectively. A plurality of mobile trolleys suitable for independent movement are arranged on the pallet body at intervals along the length direction of the pallet body. Each mobile trolley is in contact with the track through a running assembly and is suitable for running on the track, so that the spacing between adjacent mobile trolleys is adjustable, which can adapt to the loading of pier bodies and pier caps of different outer sizes. As a result, the lifting and erection of prefabricated bridge piers are more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a pier cap and a pier body loaded on a loading pallet in an embodiment of the present invention;

[0027] Figure 2 A schematic structural diagram of a loading tray from another perspective in an embodiment of the present invention;

[0028] Figure 3 For the embodiment of the present invention Figure 2 The enlarged view of point A in the middle;

[0029] Figure 4 It is a structural schematic diagram of a loading tray from another perspective in an embodiment of the present invention;

[0030] Figure 5 Schematic diagram of step S1 of the construction method in an embodiment of the present invention;

[0031] Figure 6 Schematic diagram of step S2 of the construction method in an embodiment of the present invention;

[0032] Figure 7 Schematic diagram of steps S2 and S3 of the construction method in an embodiment of the present invention;

[0033] Figure 8 Schematic diagram of step S3 of the construction method in an embodiment of the present invention;

[0034] Fig. 9Schematic diagram of step S4 of the construction method in an embodiment of the present invention;

[0035] Fig.10 Schematic diagram of step S5 of the construction method in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1-pallet body, 11-first groove structure, 12-track, 2-mobile trolley, 21-travel assembly, 211-wheel, 212-track clamp, 213-guide wheel, 22-frame, 221-second groove structure, 23-support seat, 3-fixed seat, 4-buffer, 5-lifting hole, 101-pier cap, 102-pier body, 200-conveying machine, 300-beam storage pedestal, 400-beam lifting machine, 500-beam transport vehicle, 600-bridge erecting machine. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the description of the present invention, it should be understood that the positive direction of "X" in the drawings represents the front, and correspondingly, the reverse direction of "X" represents the rear; the positive direction of "Y" represents the right, and correspondingly, the reverse direction of "Y" represents the left; the positive direction of "Z" represents the top, and correspondingly, the reverse direction of "Z" represents the bottom. The orientation or position relationship indicated by the terms "X", "Y", "Z", etc. is based on the orientation or position relationship shown in the drawings of the specification, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] With the development of the times, the technology of prefabricated bridge construction has developed rapidly. At present, the technology of manufacturing, transporting and erecting prestressed box girders for railways, highways and other places is very mature, and a series of construction equipment such as transporters, beam lifting machines, beam transporters and bridge erection machines have been formed. The sizes of prestressed box girders on a line are basically the same, and the supporting construction equipment such as box girder lifting, transporting and erection are mature and stable. Unlike prestressed box girders, prefabricated bridge piers are divided into pier bodies and pier caps. Generally, each prefabricated bridge pier consists of two pier bodies and one pier cap. Because bridges need to be built in different terrains such as mountains, plains and rivers, the external dimensions of the piers on a line are not the same, and they may even vary greatly. The lifting, transportation and erection of bridge piers need to be carried out alternately with the lifting, transportation and erection of box girders, that is, after lifting, transportation and erecting several bridge piers, the corresponding box girders must be lifted, transported and erected, which means that the lifting, transportation and erection of bridge piers must use construction equipment for lifting, transportation and erection of box girders. Existing construction equipment such as transporters, beam lifting machines, beam transporters and bridge erectors are very suitable for prestressed box girders. However, since the pier body and pier cap of prefabricated bridge piers have different shapes, sizes, weights, etc. from box girders, existing construction equipment used for erecting box girders cannot be directly used for the lifting, transportation and erection of prefabricated bridge piers.

[0041] To solve the above problems, Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a loading pallet for loading assembled bridge piers, comprising: a pallet body 1, the pallet body 1 comprising a first groove structure 11 and a track 12, the first groove structure 11 being suitable for loading the pier cap 101, and the track 12 being arranged on both sides of the first groove structure 11 in the width direction of the pallet body 1, and extending along the length direction of the pallet body 1; a mobile trolley 2, the mobile trolley 2 comprising a running assembly 21 and a frame 22, the running assembly 21 is in contact with the track 12 and is suitable for running on the track 12, the frame 22 is provided with a second groove structure 221, and the second groove structure 221 is suitable for loading the pier body 102; a plurality of mobile trolleys 2 are provided, and a plurality of mobile trolleys 2 are arranged at intervals in the length direction of the pallet body 1, and each mobile trolley 2 is suitable for independent running.

[0042] like Figure 1 and Figure 2As shown, the pallet body 1 can adopt a frame structure formed by welding, riveting or bolting of steel sections, or a box structure formed by welding of steel plates. The cross-sectional shape of the first groove structure 11 can be U-shaped, V-shaped, polygonal, arc-shaped or various shapes combined thereof. The first groove structure 11 can penetrate the entire pallet body 1 along the length direction of the pallet body 1, or can be divided into multiple sections by a partition structure to form multiple first groove structures 11. The track 12 can adopt a groove slideway or a slide rail with an H-shaped cross-section. There are multiple mobile trolleys 2, and every two mobile trolleys 2 are grouped together. One, two, three or more groups of mobile trolleys 2 can be set. Each group of mobile trolleys 2 can use a sliding, rolling, crawler or other form of running assembly 21 to run on the track 12. The cross-sectional shape of the second groove structure 221 on the frame 22 matches the shape of the pier body 102, and can be a triangle, rectangle, polygon, circle or various shapes combined thereof.

[0043] Specifically, in the present embodiment, the pallet body 1 comprises a base frame, side longitudinal beams and an end structure, which together form a six-sided box structure with a first groove structure 11 in the middle. The pallet body 1 with such a structure has high structural strength, light weight and is more durable. The first groove structure 11 runs through the entire pallet body 1 along the length direction of the pallet body 1, so that pier caps 101 of different shapes and sizes can be loaded, thereby improving the versatility of the first groove structure 11. The side longitudinal beams are hollow inside, so that the weight of the pallet body 1 can be further reduced. The height of the side longitudinal beams is designed to be the same as the height of the pier caps 101. When, in this way, the height of the first groove structure 11 can be closer to the height of the pier cap 101, the space utilization rate can be higher, the size of the loaded pallet can be reduced, and the subsequent lifting is convenient; the track 12 on the pallet body 1 adopts a slide rail with an H-shaped cross-section, and the slide rail is welded to the upper end face of the side longitudinal beam. The slide rail structure is simple, easy to install, and has a stronger load-bearing capacity. The upper end face of the end structure of the pallet body 1 is slightly higher than the slide rail on the side longitudinal beam, and the end of the first groove structure 11 is closed. In this way, the pier cap 101 can be prevented from sliding out from the side end of the pallet body 1 during lifting, which can improve the safety of the loaded pallet.

[0044] Among them, Figure 1 and Figure 2 As shown, the width direction of the tray body 1 refers to the direction of the Y axis, and the length direction of the tray body 1 refers to the direction of the X axis.

[0045] In this way, by providing a first groove structure 11 suitable for loading the pier cap 101 on the pallet body 1, and providing a second groove structure 221 suitable for loading the pier body 102 on the frame 22 of the mobile trolley 2, it is convenient to load the pier cap 101 and the pier body 102 on the pallet body 1 and the mobile trolley 2 respectively, and a plurality of mobile trolleys 2 suitable for independent movement are arranged on the pallet body 1 at intervals along the length direction of the pallet body 1, and each mobile trolley 2 is respectively in contact with the track 12 through the running assembly 21 and is suitable for running on the track 12, so that the spacing between adjacent mobile trolleys 2 is adjustable, which can adapt to the loading of pier bodies 102 and pier caps 101 of different external sizes, thereby making the lifting and erection of prefabricated bridge piers more convenient.

[0046] Optionally, the running assembly 21 includes wheels 211 , which are in contact with the track 12 and are suitable for running on the track 12 .

[0047] like Figure 1 As shown, the wheel 211 can adopt a tire set, a guide roller or other forms of wheels. Specifically, in the present embodiment, the wheel 211 adopts a guide roller. Compared with the tire set, the structure of the guide roller is more compatible with the track. The side of the guide roller in contact with the track has a track groove, and the groove wall of the track groove can be abutted against the side of the track, so that the wheel is in closer contact with the track, which can prevent the guide roller from deviating from the track and make the running assembly run more smoothly.

[0048] In this way, by setting the wheels to contact the rails and running on the rails, the friction between the wheels and the rails is small, and running is more convenient.

[0049] Optionally, the running assembly 21 further includes a track clamp 212 . The track clamp 212 is disposed on both sides of the wheel 211 in the length direction of the tray body 1 and is suitable for limiting the sliding of the mobile trolley 2 .

[0050] like Figure 3 As shown, the rail clamp 212 is a safety device for preventing the mobile trolley 2 from sliding along the track 12 under the action of external force. It usually adopts a clamp connected to the frame of the running assembly 21 to clamp the two sides of the upper end of the track 12 to prevent the mobile trolley 2 from sliding. The rail clamp 212 can be manual or electric. The manual rail clamp is generally a screw type with a simple structure, small clamping force and slow action; the electric rail clamp uses a heavy hammer to clamp the track 12 through a lever or a spring, and the clamp is released by the cylinder force in the hydraulic system.

[0051] Specifically, in the present embodiment, since the mobile trolley 2 is used to load the pier body 102 with large dimensions and weight, the mobile trolley 2 has a large moving inertia and requires a large clamping force when parked. Therefore, spring-type electric rail clamps are provided on both the front and rear sides of the wheel 211. The spring-type electric rail clamp has a small dimension, a large clamping force, good working stability, and is easy to control, so that the mobile trolley 2 can be parked more stably on the track 12.

[0052] In this way, by setting the track clamps 212 on the front and rear sides of the wheels, when the mobile trolley 2 stops on the track 12, the track clamps 212 clamp the track 12, which can prevent the pallet body 1 from tilting during lifting or carrying and causing the mobile trolley 2 to slide, making the parking of the mobile trolley 2 more stable and the lifting and carrying of the loaded pallet safer.

[0053] Optionally, the running assembly 21 further includes a guide wheel 213 , which is disposed on the inner side of the wheel 211 and contacts the inner wall of the first groove structure 11 , and is adapted to prevent the wheel 211 from moving along the width direction of the first groove structure 11 .

[0054] like Figure 1 As shown, the guide wheel 213 can be made of a rubber tire, a plastic roller or a metal guide roller. The guide wheel 213 can be set on the inside of the wheel 211 or on the outside of the wheel 211. The guide wheel 213 can contact the inner wall, outer wall or upper end surface of the first groove structure 11.

[0055] Specifically, in the present embodiment, the side of the side longitudinal beam facing the first groove structure 11 has an inclined structure, and the guide wheel 213 is connected to the bottom of the frame 22 through a vertically arranged bracket, and the lower part of the bracket is bent outward to be perpendicular to the inclined structure of the inner wall of the first groove structure 11, and the guide wheel 213 is installed at the lower part of the bracket and contacts the inclined structure, so that the guide wheel 213 is arranged on the inner side of the wheel 211, which can reasonably utilize the internal space of the loading pallet and reduce the external dimensions. At the same time, the guide wheel 213 is inclined and contacts the inclined structure, which can not only prevent the wheel 211 from running off the track, but also provide auxiliary support for the frame 22, thereby improving the load-bearing capacity of the mobile trolley 2.

[0056] Among them, Figure 1 As shown, the width direction of the first groove structure 11 refers to the direction of the Y axis.

[0057] In this way, by providing a guide wheel 213 on the inner side of the wheel 211 that contacts the inner wall of the first groove structure 11, the left and right movement of the wheel 211 can be restricted, thereby preventing the wheel 211 from running off the track.

[0058] Optionally, the mobile trolley 2 further includes a support seat 23 , which is disposed in the second groove structure 221 . The support seat 23 is arc-shaped and suitable for carrying the pier body 102 .

[0059] like Figure 1 As shown, the support seat 23 can be made of wood, plastic, rubber or other materials. The cross-sectional shape of the support seat 23 can be triangular, rectangular, polygonal, circular or various shapes combined. The support seat 23 can be connected to the frame 22 by welding, riveting, bolting, adhesive or other forms of connecting parts.

[0060] Specifically, in this embodiment, the support seat 23 adopts a rubber support seat, which is connected to the inner wall of the second groove structure 221 of the frame 22 by an adhesive, and the side of the support seat 23 facing away from the inner wall of the second groove structure 221 adopts an arc design that matches the shape of the pier body 102. The rubber support seat is elastic and has a certain buffering effect, which can reduce damage to the surface of the pier body 102. At the same time, the support seat 23 adopts an arc design that matches the shape of the pier body 102, so that the contact area between the pier body 102 and the support seat 23 is larger, the force is more uniform, the support seat 23 and the pier body 102 are more closely fitted, which can prevent the pier body 102 from shaking, and the loading pallet lifting and carrying are safer.

[0061] In this way, by arranging an arc-shaped support seat 23 in the second groove structure 221 to carry the pier body 102, the pier body 102 is not in direct contact with the inner wall of the second groove structure 221, which can reduce the friction between the inner wall of the second groove structure 221 and the pier body 102. At the same time, the pier body 102 and the support seat 23 are more closely fitted, which can prevent the pier body 102 from shaking.

[0062] Optionally, a plurality of support seats 23 are provided, and the plurality of support seats 23 are respectively arranged on the groove wall and / or the groove bottom of the second groove structure 221 .

[0063] like Figure 1 As shown, the support seat 23 can be an integral component arranged in the second groove structure 221, or a plurality of independent components can be respectively arranged on the groove wall and / or the groove bottom of the second groove structure 221. Specifically, in this embodiment, the support seat 23 is configured as a plurality of independent components, and the plurality of independent support seats 23 are respectively arranged on the groove walls and the groove bottom on both sides of the second groove structure 221. The use of a plurality of independent support seats 23 can not only save materials, but also form gaps between the support seats 23, so as to facilitate the deformation of the support seats 23 by squeezing the pier body 102.

[0064] In this way, by arranging multiple support seats 23 on the groove wall and / or groove bottom of the second groove structure 221, the pier body 102 is not in direct contact with the inner wall of the second groove structure 221, which can reduce the friction between the inner wall of the second groove structure 221 and the pier body 102. At the same time, the pier body 102 and the support seats 23 are more closely fitted, which can prevent the pier body 102 from shaking.

[0065] Optionally, a plurality of second groove structures 221 are provided, and the plurality of second groove structures 221 are spaced apart in the width direction of the frame 22 .

[0066] like Figure 1 As shown, the second groove structure 221 can be configured as a large groove structure that runs through the width direction of the frame 22, or can be configured as a plurality of small groove structures separated by partitions along the length direction of the frame 22. Specifically, in this embodiment, since the prefabricated piers are mostly gate-shaped piers with two pier bodies 102, two second groove structures 221 are provided, and the two second groove structures 221 are spaced apart along the width direction of the frame 22, so that the number of second groove structures 221 on a group of mobile trolleys matches the number of pier bodies 102 of a group of prefabricated piers, and a group of mobile trolleys can complete the loading of a group of prefabricated piers at one time.

[0067] In this way, by arranging a plurality of second groove structures 221 at intervals in the width direction of the frame 22, the number of the second groove structures 221 matches the number of the pier bodies 102, thereby facilitating the loading of the assembled piers.

[0068] Optionally, the loading pallet further includes a fixing seat 3 , which is disposed at the bottom of the first groove structure 11 and is suitable for fixing the pier cap 101 .

[0069] like Figure 1 As shown, the fixing seat 3 can be made of wood, plastic, rubber or other materials. The cross-sectional shape of the fixing seat 3 can be a triangle, a rectangle, a polygon, a circle or various shapes combined. The fixing seat 3 can be connected to the bottom of the first groove structure 11 by welding, riveting, bolting, adhesive or other forms of connecting parts.

[0070] Specifically, in this embodiment, the fixing seat 3 adopts a rubber fixing seat, which is connected to the corner of the groove bottom and the groove wall of the first groove structure 11 by an adhesive, and the side of the fixing seat 3 facing away from the groove bottom of the first groove structure 11 is designed to be stepped. The rubber fixing seat is elastic and has a certain buffering effect, which can reduce damage to the corners of the pier cap 101. At the same time, the side of the fixing seat 3 facing away from the groove bottom of the first groove structure 11 is designed to be stepped, so that the fixing seat 3 and the corners of the pier cap 101 are more closely fitted, which can prevent the pier cap 101 from shaking, and the loading pallet lifting and carrying are safer.

[0071] In this way, by setting a fixing seat 3 suitable for fixing the pier cap 101 at the bottom of the first groove structure 11, the pier cap 101 is not in direct contact with the inner wall and the bottom of the first groove structure 11, which can reduce the friction between the inner wall and the bottom of the first groove structure 11 and the pier cap 101. At the same time, the fixing seat 3 fits more closely with the corners of the pier cap 101, which can prevent the pier cap 101 from shaking.

[0072] Optionally, the loading pallet also includes a buffer 4, which is arranged on the pallet body 1. In the length direction of the pallet body 1, the buffer 4 is arranged on one side of the first groove structure 11 and is suitable for limiting the movement of the mobile trolley 2 within the length range of the first groove structure 11.

[0073] like Figure 3 and Figure 4 As shown, the buffer 4 refers to a safety protection device that absorbs the impact force generated by the impact force during the movement of the equipment, thereby effectively protecting and reducing the damage to the equipment caused by the collision. An energy storage buffer or an energy dissipation buffer can be used. The energy storage buffer can be divided into a spring buffer and a rubber buffer according to the structural form; the energy dissipation buffer can be divided into a polyurethane buffer, a hydraulic buffer, a ZL composite buffer, an elastic damping body buffer, etc. according to the structural form.

[0074] Specifically, in the present embodiment, since the mobile trolley 2 is generally moved in an empty state to adjust the spacing between adjacent mobile trolleys 2 so as to adapt to pier bodies 102 of different lengths, the inertia of the mobile trolley 2 is relatively small. The buffers 4 are provided at both ends of the pallet body 1 to limit the movement range of the mobile trolley 2 so as to prevent it from sliding out of the pallet body 1. Therefore, the buffer 4 can be a rubber buffer, one end of which is connected to the end structure of the pallet body 1, and a rubber pad is provided at the end of the rubber buffer facing the mobile trolley 2. When the mobile trolley 2 moves to contact the buffer 4, the buffer pad is compressed and deformed, which can prevent the mobile trolley 2 from hitting the end structure of the pallet body 1 and can limit the mobile trolley 2 from sliding out of the pallet body 1.

[0075] In this way, by providing a buffer 4 on one side of the first groove structure 11 on the pallet body 1, the moving range of the mobile trolley 2 can be limited to prevent the mobile trolley 2 from sliding out of the pallet body 1, making loading the pallet safer.

[0076] Optionally, a lifting hole 5 is provided on the pallet body 1 , and the lifting hole 5 is provided on one side of the first groove structure 11 in the length direction of the pallet body 1 .

[0077] like Figure 3 and Figure 4As shown, the cross-sectional shape of the lifting hole 5 can be a triangle, a rectangle, a polygon, a circle or various shapes combined thereof. Specifically, in the present embodiment, a circular lifting hole is arranged at the end structure on the side of the first groove structure 11 on the pallet body 1, and the lifting hole 5 passes through the end structure along the height direction of the pallet body 1, and a reinforcing pad is arranged at the bottom of the lifting hole 5. A plurality of lifting holes 5 are provided, and the plurality of lifting holes 5 are symmetrically arranged along the length direction and the width direction of the pallet body 1, respectively. The inner wall of the circular lifting hole is smoother, and it is more convenient to install the lifting equipment during the lifting operation. The plurality of lifting holes 5 are symmetrically arranged, so that the lifting of the loaded pallet is more stable.

[0078] Among them, Figure 4 As shown, the height direction of the tray body 1 refers to the direction along the Z axis.

[0079] In this way, by providing the lifting hole 5 on the pallet body 1 at one side of the first groove structure 11 , lifting of the loaded pallet is made more convenient.

[0080] Another embodiment of the present invention provides a construction method for erecting an assembled bridge pier, using a transporter 200, a beam storage pedestal 300, a beam lifting machine 400, a beam transport vehicle 500, a bridge erecting machine 600 and the above-mentioned loading pallet, and the construction method for erecting an assembled bridge pier includes the following steps:

[0081] S1: Figure 5 As shown, the pier cap 101 and the pier body 102 of the assembled pier are loaded on a loading pallet;

[0082] S2: Figure 6 and Figure 7 As shown, a transporter 200 is used to lift the loading pallet onto the beam storage pedestal 300;

[0083] S3: Figure 7 and Figure 8 As shown, a beam lifting machine 400 is used to lift the loading pallet from the beam storage pedestal 300 and place it on the beam transport vehicle 500;

[0084] S4: Fig. 9 As shown, the beam transport vehicle 500 carries the loaded pallet to the primary beam feeding position at the rear of the bridge erecting machine 600;

[0085] S5: Fig.10 As shown, the carrying trolley of the beam transport vehicle 500 and the front lifting trolley of the bridge erecting machine 600 move the loading pallet through the middle support leg of the bridge erecting machine 600 to achieve secondary beam feeding.

[0086] Specifically, Figures 5 to 10As shown, in this embodiment, the prefabricated piers are first loaded on the loading pallet in the beam yard, wherein the pier cap 101 is loaded in the first groove structure 11 of the pallet body 1, and the pier body 102 is loaded in the second groove structure 221 on the frame 22 of the mobile trolley 2, and the loading of three groups of prefabricated piers is completed at one time; the transporter 200 lifts and transports the loading pallet from the beam yard to the beam storage pedestal 300; the beam lifting machine 400 lifts the loading pallet from the beam storage pedestal 300 and places it on the beam transport vehicle 500 on the bridge deck; the beam transport vehicle 500 carries the loading pallet to the primary beam feeding position at the tail end of the bridge erection machine 600; the carrying trolley of the beam transport vehicle 500 lifts the rear part of the loading pallet, and the front lifting trolley of the bridge erection machine 600 lifts the front part of the loading pallet, and the carrying trolley and the front lifting trolley move the loading pallet together to pass through the middle support leg of the bridge erection machine 600, thereby realizing secondary beam feeding.

[0087] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A loading pallet for loading assembled bridge piers, characterized in that: include: A pallet body (1), the pallet body (1) comprising a first groove structure (11) and a track (12), the first groove structure (11) being suitable for loading a pier cap (101), the track (12) being arranged on both sides of the first groove structure (11) in the width direction of the pallet body (1) and extending along the length direction of the pallet body (1); A mobile trolley (2), the mobile trolley (2) comprising a running assembly (21) and a frame (22), the running assembly (21) being in contact with the track (12) and being suitable for running on the track (12), the frame (22) being provided with a second groove structure (221), the second groove structure (221) being suitable for loading the pier body (102); The mobile trolleys (2) are provided in plurality, and are arranged at intervals in the length direction of the tray body (1), and each of the mobile trolleys (2) is suitable for independent movement.

2. The loading tray according to claim 1, characterized in that: The running assembly (21) comprises wheels (211), wherein the wheels (211) are in contact with the track (12) and are suitable for running on the track (12).

3. The loading tray according to claim 2, characterized in that: The running assembly (21) further comprises a track clamp (212) which is arranged on both sides of the wheel (211) in the length direction of the tray body (1) and is suitable for limiting the sliding of the mobile trolley (2).

4. The loading tray according to claim 2, characterized in that: The running assembly (21) further comprises a guide wheel (213), wherein the guide wheel (213) is arranged on the inner side of the wheel (211) and contacts the inner wall of the first groove structure (11), and the guide wheel (213) is suitable for preventing the wheel (211) from moving along the width direction of the first groove structure (11).

5. The loading tray according to any one of claims 1 to 4, characterized in that: The mobile trolley (2) further comprises a support seat (23), wherein the support seat (23) is arranged in the second groove structure (221), and the support seat (23) is designed in an arc shape and is suitable for carrying the pier body (102).

6. The loading tray according to claim 5, characterized in that: A plurality of the support seats (23) are provided, and the plurality of the support seats (23) are respectively arranged on the groove wall and / or the groove bottom of the second groove structure (221).

7. The loading tray according to any one of claims 1 to 4, characterized in that: A plurality of the second groove structures (221) are provided, and the plurality of the second groove structures (221) are arranged at intervals in the width direction of the vehicle frame (22).

8. The loading tray according to any one of claims 1 to 4, characterized in that: It also comprises a fixing seat (3), which is arranged at the bottom of the first groove structure (11) and is suitable for fixing the pier cap (101).

9. The loading tray according to any one of claims 1 to 4, characterized in that: It also includes a buffer (4), which is arranged on the tray body (1). In the length direction of the tray body (1), the buffer (4) is arranged on one side of the first groove structure (11) and is suitable for limiting the movement of the mobile trolley (2) within the length range of the first groove structure (11).

10. The loading tray according to any one of claims 1 to 4, characterized in that The tray body (1) is provided with a lifting hole (5), and in the length direction of the tray body (1), the lifting hole (5) is arranged on one side of the first groove structure (11).

11. A construction method for erecting assembled bridge piers, using a transporter (200), a beam storage pedestal (300), a beam lifting machine (400), a beam transport vehicle (500), a bridge erecting machine (600) and a loading pallet as claimed in any one of claims 1 to 10, characterized in that: The steps include: S1: loading the pier cap (101) and the pier body (102) of the assembled bridge pier onto the loading pallet; S2: using the transport machine (200) to lift the loading pallet onto the beam storage pedestal (300); S3: using the beam lifting machine (400) to lift the loading pallet from the beam storage pedestal (300) and place it on the beam transport vehicle (500); S4: the beam transport vehicle (500) carries the loading pallet to the primary beam feeding position at the rear of the bridge erecting machine (600); S5: The carrying trolley of the beam transport vehicle (500) and the front lifting trolley of the bridge erecting machine (600) move the loading tray through the middle leg of the bridge erecting machine (600) to achieve secondary beam feeding.

Images