A kind of erection device of assembled beam column

Abstract

The utility model belongs to the field of bridge engineering construction, and specifically proposes an erection device for assembled beams and columns, including a main beam group, the main beam group including two parallel main beams and a main beam connecting beam located at both ends of the two main beams for connecting the two main beams, the top of the main beam group is slidably connected to a hoisting assembly; a front leg assembly is provided at one end of the main beam group, and a front leg walking wheel assembly is installed at the bottom of the front leg assembly; the other end of the main beam group is connected to a lifting rear leg assembly, and a middle leg assembly is provided on the main beam group between the front leg assembly and the lifting rear leg assembly in parallel with the front leg assembly, and a middle leg walking wheel assembly is installed at the bottom of the middle leg assembly. The utility model integrates the installation functions of two structures, assembled piers and assembled cap beams, and installs piers between the front legs and the middle legs of the equipment, and installs cap beams between the middle legs and the rear legs. The equipment has a high degree of integration, diverse functions, and low manufacturing and use costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge engineering construction, and specifically relates to an erection device for assembled beams and columns. Background Art

[0002] Prefabricated bridges have the advantages of improving quality, shortening construction period, reducing costs, reducing impact on existing traffic and environment, and meeting the needs of urban bridge construction. In recent years, they have developed rapidly, from initially only targeting the superstructure of the bridge to gradually covering the lower pier structure of the bridge to form a fully prefabricated and assembled bridge system. At present, in road and bridge projects, the construction of heavy-weight prefabricated piers and cap beams is mainly carried out by crane hoisting. There is also a method of erecting them by a bridge-building machine, such as the patent application with application number 201721031870.0, which proposes an integrated bridge-building machine for piers, cap beams and beam slabs of small and medium-span bridges, including a truss-type main beam; the front part of the main beam is supported on the pedestal of the n+3 span by auxiliary legs, and the piers and cap beams of this span have not yet been installed on its pedestal; the middle part of the main beam is supported on the beam column of the n+2 span by front legs, and the span has been The piers and cap beams are installed on the cap, but the beam slab has not yet been erected between the n+1 span; the rear part of the main beam is supported on the beam slab between the n span and the n+1 span through the rear legs, the n span and the n+1 span have both been installed on their respective caps and the beam slabs have been erected on the cap beams of the two spans, and n is a natural number greater than 0; the method of installing the prefabricated bridge by erecting a bridge erecting machine on the already hoisted piers partially solves the problem of the difficulty of using a crane for hoisting and the high technical level required of workers, but it still has the following shortcomings:

[0003] 1. After erecting a group of piers and cap beams, the bridge erection machine needs to be manually dismantled and reinstalled after changing its position, which increases the labor workload of the workers and is not convenient for the continuous installation of piers and cap beams.

[0004] 2. When erecting at least the first three piers and the first cap beam of the bridge, they still need to be hoisted by a crane. The use scenarios of this device are limited, and it cannot effectively solve the problem of large site space requirements and great impact on road vehicle traffic during prefabricated bridge operations.

[0005] 3. During erection, the overhead crane can only move axially and cannot be adjusted radially, so the accuracy cannot be guaranteed. Utility Model Content

[0006] The utility model aims to solve the technical problems in the related art at least to a certain extent. To this end, the utility model proposes a device for erecting assembled beams and columns.

[0007] The technical solution to the technical problem solved by the utility model is: an erection device for assembled beams and columns, comprising a main beam group, the main beam group comprising two main beams arranged in parallel and main beam connecting beams located at both ends of the two main beams for connecting the two main beams, the top of the main beam group being movably connected to a lifting assembly; a front outrigger assembly is provided at one end of the main beam group, a front outrigger walking wheel group is installed at the bottom of the front outrigger assembly; the other end of the main beam group is connected to a lifting rear outrigger assembly, a middle outrigger assembly is provided on the main beam group between the front outrigger assembly and the lifting rear outrigger assembly in parallel with the front outrigger assembly, a middle outrigger walking wheel group is installed at the bottom of the middle outrigger assembly.

[0008] Preferably, the lifting assembly includes a longitudinal crane, which can move on the main beam assembly along the main beam direction; a transverse crane is provided on the top of the longitudinal crane, which can move perpendicular to the main beam direction on the top of the longitudinal crane; a crane is installed on the top of the transverse crane, and the crane lifts the rotating hoist through a lifting rope, and the bottom of the rotating hoist can be rotatably connected to the lifting frame.

[0009] Preferably, the front leg assembly includes a front leg distribution beam connected to the main beam, a pair of front legs are arranged parallel to each other at the bottom of the front leg distribution beam; a front leg crossbeam of a stable structure is connected between the two front legs; the two ends of the front leg distribution beam are respectively connected to the front oblique legs with the two front legs, and the front oblique leg connecting rods are connected between the front oblique legs.

[0010] Preferably, the middle leg assembly includes a middle leg distribution beam connected to the main beam, a pair of middle legs are arranged parallel to each other at the bottom of the middle leg distribution beam; a middle leg crossbeam of a stable structure is connected between the two middle legs; middle oblique legs are respectively connected between the two ends of the middle leg distribution beam and the two middle legs, and middle oblique leg connecting rods are connected between the middle oblique legs.

[0011] Preferably, the lifting rear leg assembly includes two rear legs arranged in parallel, and the rear legs are vertically opened with multiple groups of pin shaft holes, and the rear legs are detachably connected to the main beam assembly through pin shafts; the pin shafts on the rear legs are connected to a lifting seat, and the lifting seat is located below the upper chord rod of the main beam, and a lifting hydraulic cylinder is connected between the lifting seat and the upper chord rod of the main beam; a rear leg cross beam of a stable structure is connected between the two rear legs; and a supporting hydraulic cylinder is installed at the bottom of the two rear legs.

[0012] Preferably, one end of the main beam assembly connected to the lifting rear leg assembly is provided with a hole for the rear leg to pass through.

[0013] Preferably, a front middle leg cross beam of a stable structure is connected between the front leg assembly and the middle leg assembly.

[0014] Preferably, a counterweight is also installed on the front leg.

[0015] Preferably, both ends of the front support leg distribution beam and both ends of the main beam are respectively connected to the first connecting rods.

[0016] Preferably, the two ends of the middle leg distribution beam and the two ends of the main beam are respectively connected to the second connecting rods.

[0017] Compared with the prior art, the above technical solution has the following advantages or beneficial effects:

[0018] 1. The utility model integrates the installation functions of two structures, namely, assembled piers and assembled cap beams. The piers are installed between the front legs and the middle legs of the equipment, and the cap beams are installed between the middle legs and the rear legs. The equipment has a high degree of integration, diverse functions, and low manufacturing and use costs.

[0019] 2. The utility model is provided with a walking wheel group at the bottom, which has low requirements on the walking surface and can be used on a variety of road surfaces, increasing the application scope of the equipment; and after installing a group of piers and cap beams, there is no need to disassemble the device, and it can be moved to the next designated installation point through the walking wheel group to complete the next installation.

[0020] 3. The utility model is equipped with an electric rotating hoist. When installing the assembled cap beam, it is longitudinally transported to the bottom of the equipment. After being hoisted to a certain height above the pier, it is rotated 90 degrees and then installed on the pier, which reduces the horizontal width occupied during ground transportation and reduces the difficulty of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] Figure 1 It is the front view of the utility model.

[0023] Figure 2 It is a cross-sectional view of the front outrigger assembly of the utility model.

[0024] Figure 3 It is a cross-sectional view of the outrigger assembly in the utility model.

[0025] Figure 4 It is a cross-sectional view of the rear outrigger assembly of the utility model after lifting.

[0026] Figure 5 It is a schematic diagram of posture conversion of the utility model for hoisting pier columns.

[0027] Figure 6 It is a schematic diagram of the falling of the hoisting pier column of the utility model.

[0028] Figure 7 It is a cross-sectional schematic diagram when the utility model hoisting pier column is in place.

[0029] Figure 8 It is a schematic diagram of hoisting when the cap beam is hoisted in the utility model.

[0030] Fig. 9 It is a schematic diagram of the drop of the hoisting cap beam of the utility model.

[0031] Fig.10 It is a schematic diagram of the utility model when walking.

[0032] Description of reference numerals:

[0033] 1. Main beam, 2. Front outrigger assembly, 3. Front middle outrigger cross beam, 4. Counterweight, 5. Front outrigger running wheel set, 6. Transverse crane, 7. Longitudinal crane, 8. Rotating hoist, 9. Lifting frame, 10. Crane, 11. Lifting rope, 12. Middle outrigger assembly, 13. Middle outrigger running wheel set, 14. Lifting rear outrigger assembly, 15. Main beam connecting beam, 16. First connecting rod, 17. Second connecting rod.

[0034] The front outrigger assembly includes: 2-1. front outrigger distribution beam, 2-2. front outrigger, 2-3. front outrigger crossbeam, 2-4. front oblique outrigger, 2-5. front oblique outrigger connecting rod;

[0035] The middle outrigger assembly includes: 12-1. middle outrigger distribution beam, 12-2. middle outrigger, 12-3. middle outrigger crossbeam, 12-4. middle oblique outrigger, 12-5. middle oblique outrigger connecting rod;

[0036] The lifting rear outrigger assembly includes: 14-1. rear outrigger, 14-2. lifting hydraulic cylinder, 14-3. lifting seat, 14-4. pin shaft, 14-5. rear outrigger cross beam, 14-6. supporting hydraulic cylinder. DETAILED DESCRIPTION

[0037] In order to clearly illustrate the technical features of this solution, the utility model is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The utility model omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the utility model. The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model 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 a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] See also Figure 1-Figure 4 The utility model provides a technical solution: an erection device for assembled beams and columns, comprising a main beam group; the main beam group comprises two main beams 1 arranged in parallel on the left and right and a main beam connecting beam 15 for connecting the two main beams, the main beam 1 is divided into multiple sections along the longitudinal direction, and the middle is connected into a whole by bolts or pins, and a track is arranged on the upper chord rods of the two main beams 1; the main beam connecting beam 15 is installed near the front and rear legs of the main beam group to connect the two main beams into a whole, and the top of the main beam group can be movably connected to the lifting assembly; a front leg assembly 2 is provided at one end of the main beam group, and a front leg walking wheel group 5 is installed at the bottom of the front leg assembly 2; a lifting rear leg assembly 14 is provided at the other end, and a middle leg assembly 12 parallel to the front leg assembly 2 is provided on the main beam 1 between the front leg assembly 2 and the lifting rear leg 14, and a middle leg walking wheel group 13 is installed at the bottom of the middle leg assembly 12.

[0039] The lifting assembly includes a longitudinal crane 7, which can move axially along the main beam group and is placed on the upper main beam 1; a track is set above the longitudinal crane 7 and perpendicular to the direction of the main beam group, and a transverse crane 6 is placed on the track of the longitudinal crane 7 and moves along the track perpendicular to the direction of the main beam group; multiple cranes 10 are installed on the top of the transverse crane 6, and the crane 10 lifts the rotating hoist through the lifting rope 11, and the rotating hoist 8 is driven by the crane 10 to realize the lifting action, and the bottom of the rotating hoist 8 can be rotatably connected to the lifting frame 9.

[0040] The front leg assembly 2 includes a front leg distribution beam 2-1 connected to the main beam assembly, a pair of front legs 2-2 are arranged in parallel at the bottom of the front leg distribution beam 2-1, a front leg cross beam 2-3 of a stable structure is connected between the two front legs 2-2, and the two ends of the front leg distribution beam 2-1 are respectively connected to the front oblique legs 2-4 with the two front legs 2-2, and the front oblique legs 2-4 and the front legs 2-2 are connected to the front oblique legs connecting rod 2-5. A plurality of counterweights 4 are placed at the front end of the front legs to balance the weight of the main beam cantilever section and the rear legs 14-1.

[0041] The middle leg assembly 12 includes a middle leg distribution beam 12-1 connected to the main beam group, a pair of middle legs 12-2 are arranged in parallel at the bottom of the middle leg distribution beam 12-1; a middle leg cross beam 12-3 of a stable structure is connected between the two middle legs 12-2; the two ends of the middle leg distribution beam 12-1 are respectively connected to the middle oblique legs 12-4 between the two middle legs 12-2, and the middle oblique leg connecting rod 12-5 is connected between the middle oblique legs 12-4 and the middle legs 12-2. The main beam 1 is installed on the front leg distribution beam 2-1 and the middle leg distribution beam 12-1 of the portal structure by bolts, and the first connecting rod 16 and the second connecting rod 17 are installed on both sides of the main beam group. One end of the first connecting rod 16 is connected to the main beam group, and the other end is connected to the front leg distribution beam 2-1; one end of the second connecting rod 17 is connected to the main beam group, and the other end is connected to the middle leg distribution beam 12-1, so as to improve the stability of the structure.

[0042] The lifting rear leg assembly 141 includes two parallel rear legs 14-1, and a plurality of pin holes are vertically opened on the rear legs 14-1 for fixing and lifting the rear legs 14-1; a box-shaped opening structure is welded at the rear end of the main beam 1, and the rear legs 14-1 can be inserted into the structure hole, and a pin hole is opened on the side wall of the main beam box structure, and a pin shaft 14-4 is used to fix with the opening on the rear legs 14-1 to achieve reliable support; a lifting seat 14 is installed on the rear legs 14-1 -3, the side wall of the lifting seat 14-3 also has an opening, which is connected to the rear leg 14-1 through a pin 14-4; the upper end of the lifting seat 14-3 is connected to the lower end of the upper chord of the main beam 1 through a lifting hydraulic cylinder 14-2, and the lifting hydraulic cylinder 14-2 drives the lifting seat 14-3 to move up and down, thereby driving the rear leg 14-1 to move up and down; during the lifting and lowering process of the rear leg 14-1, the connecting pin 14-4 between the rear leg 14-1 and the main beam 1 is disengaged. A supporting hydraulic cylinder 14-6 is installed at the lower end of the rear leg 14-1, which can achieve a small range of height adjustment. A rear leg cross beam 14-5 is installed between the two rear legs to improve the stability of the rear leg 14-1.

[0043] The equipment mainly includes three working states: prefabricated pier installation, prefabricated cap beam installation and equipment movement. When the equipment is working, it can be installed in a cycle rhythm sequence of installing one-hole prefabricated pier, moving to the position, installing one-hole prefabricated cap beam and moving to the position; it can also install multi-hole prefabricated piers in a cycle rhythm of installing prefabricated piers and moving to the position, and then return to the starting point of installing the prefabricated piers after the installation is completed, and then install the prefabricated cap beams at corresponding positions in sequence in a cycle rhythm of installing the prefabricated cap beams and moving to the position.

[0044] When installing prefabricated piers: refer to Figure 5-Figure 7 The installation of the assembled pier column needs to be carried out in the area between the portal frame between the front leg 2-2 and the middle leg 12-2 of the equipment. During installation, the assembled pier column is first transported to the bottom of the equipment using a transport vehicle. At this time, the transport vehicle is located in the horizontal middle position of the equipment; then the pier column is converted from horizontal to vertical, and the dedicated lifting frame 9 is connected to the reserved lifting ring on the pier column. The pier column is converted from horizontal to vertical through the movement and lifting of the longitudinal crane 7; after the pier column is vertical, the longitudinal crane 7 and the transverse crane 6 are moved to the top of the corresponding installation position of the pedestal, and the pier column is lowered to complete the installation; after the installation of the pier column on one side is completed, the above actions are repeated to complete the installation of the pier column on the other side. After installing a hole of pier column, move the equipment forward by the distance of one hole to install the next hole of pier column.

[0045] When installing the fabricated cap beam: refer to Figure 8 and Fig. 9The assembled cap beam is installed in the area between the middle leg 12-2 and the rear leg 14-1 of the equipment. Before installation, move the equipment to a suitable position, lower the rear leg 14-1 to support it on the installed cap beam, and the lifting process of the rear leg 14-1 is as follows: when lowering, first disconnect the pin 14-4 between the rear leg 14-1 and the lower main beam 1, and the lifting seat 14-3 is connected to the rear leg 14-1 using the pin 14-4. One end of the lifting hydraulic cylinder 14-2 is connected to the upper main beam 1, and the other end is connected to the lifting seat 14-3. The lifting hydraulic cylinder 14-2 is extended The lifting seat 14-3 is driven to move, and then the rear leg 14-1 is driven to descend. After the hydraulic cylinder extends a stroke length, the lower main beam 1 is connected to the pin 14-4 of the rear leg 14-1, and the pin 14-4 between the lifting seat 14-3 and the rear leg 14-1 is disconnected. The hydraulic cylinder retracts and drives the lifting seat 14-3 to rise by a hydraulic cylinder stroke length, and the lifting seat 14-3 is connected to the rear leg 14-1 through the pin 14-4, and the pin 14-4 between the lower main beam 1 and the rear leg 14-1 is disconnected, and the next stroke of descent is performed; the rear leg rises in the opposite way. After the rear leg is lifted and lowered to the right position, the length of the supporting hydraulic cylinder 14-6 is adjusted so that the rear leg 14-1 can be reliably supported on the installed cap beam.

[0046] After the support is completed, use a transport vehicle to transport the cap beam longitudinally to the bottom of the equipment. At this time, the transport vehicle is located in the horizontal middle position of the equipment. Connect the cap beam to the special lifting frame 9, lift the cap beam to a certain height above the pier, use the electric rotating hoist 8 to rotate the cap beam 90 degrees, and then move the longitudinal overhead crane 7 forward to move the cap beam above the pier. Move the horizontal overhead crane 6 left and right for fine-tuning, and then lower the cap beam to complete the installation. After the installation is completed, lift the rear support leg 14-1, move the equipment forward one hole, and install the cap beam of the next hole.

[0047] When the equipment is moving: Reference Fig.10 Before the equipment moves forward or backward, it is first necessary to move the overhead crane to the vicinity of the front outrigger 2-2 at the front end of the main beam. After it is reliably fixed, start the front outrigger walking wheel group 5 and the middle outrigger walking wheel group 13 to move the equipment a certain distance for the next operation.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for erecting assembled beams and columns, characterized in that: The invention comprises a main beam group, the main beam group comprises two main beams (1) arranged in parallel and a main beam connecting beam (15) located at both ends of the two main beams for connecting the two main beams; the top of the main beam group is movably connected to a hoisting assembly; one end of the main beam group is provided with a front outrigger assembly (2), and a front outrigger walking wheel assembly (5) is installed at the bottom of the front outrigger assembly (2); the other end of the main beam group is connected to a lifting rear outrigger assembly (14); a middle outrigger assembly (12) is provided on the main beam group between the front outrigger assembly (2) and the lifting rear outrigger assembly (14) in parallel with the front outrigger assembly (2), and a middle outrigger walking wheel assembly (13) is installed at the bottom of the middle outrigger assembly (12).

2. The assembly beam-column erection device according to claim 1, characterized in that: The hoisting assembly comprises a longitudinal crane (7) which can move on the main beam assembly along the direction of the main beam (1); a transverse crane (6) is arranged on the top of the longitudinal crane (7) and can move perpendicularly to the direction of the main beam on the top of the longitudinal crane (7); a hoist (10) is installed on the top of the transverse crane (6) and the hoist (10) hoists a rotating hoist (8) through a hoisting rope (11); the bottom of the rotating hoist (8) can be rotatably connected to a hoisting frame (9).

3. The assembly beam-column erection device according to claim 1, characterized in that: The front leg assembly (2) comprises a front leg distribution beam (2-1) connected to the main beam assembly, a pair of front legs (2-2) being arranged in parallel at the bottom of the front leg distribution beam (2-1); a front leg cross beam (2-3) of a stable structure being connected between the two front legs (2-2); two ends of the front leg distribution beam (2-1) being respectively connected to front oblique legs (2-4) with the two front legs (2-2), and a front oblique leg connecting rod (2-5) being connected between the front oblique legs (2-4) and the front legs (2-2).

4. The assembly beam-column erection device according to claim 1, characterized in that: The middle leg assembly (12) comprises a middle leg distribution beam (12-1) connected to the main beam, a pair of middle legs (12-2) being arranged in parallel at the bottom of the middle leg distribution beam (12-1); a middle leg cross beam (12-3) of a stable structure being connected between the two middle legs (12-2); middle oblique legs (12-4) being respectively connected between the two ends of the middle leg distribution beam (12-1) and the two middle legs (12-2), and a middle oblique leg connecting rod (12-5) being connected between the middle oblique legs (12-4) and the middle legs (12-2).

5. The assembly beam-column erection device according to claim 1, characterized in that: The lifting rear leg assembly (14) comprises two rear legs (14-1) arranged in parallel, the rear legs (14-1) having a plurality of pin holes formed vertically, the rear legs (14-1) being detachably connected to the main beam assembly via pins (14-4); the upper pins of the rear legs (14-1) being connected to a lifting seat (14-3), the lifting seat being located below the upper chord of the main beam, a lifting hydraulic cylinder (14-2) being connected between the lifting seat (14-3) and the upper chord of the main beam; a rear leg cross beam (14-5) of a stable structure being connected between the two rear legs (14-1); and a supporting hydraulic cylinder (14-6) being installed at the bottom of the two rear legs (14-1).

6. The assembly beam-column erection device according to claim 5, characterized in that: One end of the main beam assembly connected to the lifting rear leg assembly (14) is provided with a hole through which the rear leg (14-1) can pass.

7. The assembly beam-column erection device according to claim 1, characterized in that: A front middle leg cross beam (3) of a stable structure is connected between the front leg assembly (2) and the middle leg assembly (12).

8. The assembly beam-column erection device according to claim 3, characterized in that: A counterweight (4) is also mounted on the front supporting leg (2-2).

9. The assembly beam-column erection device according to claim 3, characterized in that: Two ends of the front outrigger distribution beam (2-1) and two ends of the main beam assembly are respectively connected to first connecting rods (16) of the stabilizing structure.

10. The assembly beam-column erection device according to claim 4, characterized in that: Two ends of the middle leg distribution beam (12-1) and two ends of the main beam group are respectively connected to second connecting rods (17) of the stabilizing structure.

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