Closing-free construction platform for accessory structure of overpass and installation device and method of closing-free construction platform

Abstract

The invention provides a sealing-free construction platform for an accessory structure of an overpass and a mounting device and method.The sealing-free construction platform for the accessory structure of the overpass comprises supporting columns, supporting beams, connecting beams, suspension rods and a working platform, and the multiple supporting columns are arranged on the two sides of the deck of a main body of the overpass; the supporting beam is horizontally arranged above the supporting columns and fixedly connected with the supporting columns, the connecting beam is horizontally arranged and fixedly connected with one end of the supporting beam, the suspension rod is vertically arranged, the upper end of the suspension rod is fixedly connected with the connecting beam, the lower end of the suspension rod is fixedly connected with the working platform, and the working platform is suspended below the overbridge body through the suspension rod. The supporting columns are arranged on the bridge floor, the working platform is connected through the supporting beams, the connecting beams and the suspension rods, and the load of the working platform can be effectively transmitted to the bridge floor. When the bridge accessory structure is used for construction, traffic closing and scaffold erecting are not needed, and the problems of construction safety of the bridge accessory structure and influences on road traffic are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction of an auxiliary structure of an overpass, and more specifically, to a construction platform for an auxiliary structure of an overpass without being enclosed, and an installation device and method thereof. Background Art

[0002] During the construction of an overpass, after the main construction of the overpass is completed, the construction of the auxiliary structures of the overpass needs to be carried out. The construction of the auxiliary structures of the overpass (such as keel welding and decorative panel installation) is a high-altitude operation and needs to be constructed across the road. Its operation cycle is long and the construction is difficult. It usually requires partial closure of the road in stages and the erection of scaffolding for construction. Not only is the efficiency low and the safety risk high, but it also requires the occupation of the road for construction, which affects traffic. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides a non-enclosed construction platform for an auxiliary structure of an overpass and an installation device and method thereof. The present invention can be used for construction without closing traffic or setting up scaffolding, thereby effectively solving the construction safety of the auxiliary structure of the bridge and the impact on road traffic.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows: A first aspect of the present invention provides a non-enclosed construction platform for an auxiliary structure of an overpass, comprising support columns, support beams, connecting beams, suspension rods and a working platform, wherein a plurality of the support columns are arranged on both sides of the main bridge deck of the overpass, the support beams are horizontally arranged above the support columns and fixedly connected to the support columns, the connecting beams are horizontally arranged and fixedly connected to one end of the support beams, the suspension rods are vertically arranged, the upper ends of the suspension rods are fixedly connected to the connecting beams, and the lower ends of the suspension rods are fixedly connected to the working platform, and the working platform is suspended below the main body of the overpass by the suspension rods.

[0005] Furthermore, if the main bridge deck of the overpass is a reinforced concrete structure, the bottom of the support column is connected to the main bridge deck of the overpass through a connector pre-embedded in the main bridge deck of the overpass; if the main bridge deck of the overpass is a steel structure, the bottom of the support column is welded to the main bridge deck of the overpass.

[0006] Furthermore, the working platform is fixedly connected to the bottom of the overpass via a plurality of connecting rods.

[0007] Furthermore, there are multiple numbers of the support columns, support beams, connecting beams, suspension rods, and working platforms.

[0008] Furthermore, a plurality of the working platforms are arranged in sequence below the main body of the overpass, and adjacent working platforms are connected by transition platforms, so that the space between the working platforms and the transition platforms are fully covered below the main body of the overpass.

[0009] Furthermore, the working platform and the transition platform are covered with steel gangplanks.

[0010] The second aspect of the present invention provides an installation device for a construction platform for installing the auxiliary structure of the overpass without being enclosed, comprising two parallel tracks arranged on the bridge deck of the overpass body and in the same direction as the overpass body, a sliding trolley is provided on the two parallel tracks, the sliding trolley is provided with a lifting beam perpendicular to the direction of the overpass body, hydraulic lifting devices are provided at both ends of the lifting beam, a lifting rope is connected to the lower transmission of the hydraulic lifting device, and the end of the lifting rope is connected to the connecting beam.

[0011] A third aspect of the present invention provides a method for using the installation device for the construction platform for the auxiliary structure of the overpass without being enclosed, comprising the following steps: S1: Assemble the connecting beam, suspension rod and working platform on the ground; S2: The sliding trolley moves along the track to the top of the working platform to be installed, and connects the end of the lifting rope to the connecting beam; S3: The hydraulic lifting device is activated to lift the assembled connecting beam, suspension rod and working platform through the lifting rope until the bottom of the connecting beam contacts the bottom of the lifting beam, and the connecting beam and the lifting beam are temporarily connected through the temporary connector; S4: The sliding trolley moves along the track to the installation position, and the connecting beam is fixedly connected with the support beam set there, thus completing the installation of the working platform; S5: dismantle the temporary connection parts to release the connection between the connection beam and the lifting beam; S6: The trolley moves to the top of the next work platform to be installed, and the above steps S1-S5 are repeated to achieve continuous installation of multiple work platforms.

[0012] Furthermore, the method further comprises: after completing the installation of all the working platforms, installing transition platforms on adjacent working platforms, and then laying steel gangplanks on the working platforms and transition platforms.

[0013] Furthermore, after the installation of all the working platforms is completed, the sides of the working platforms and transition platforms are supplemented and closed.

[0014] Compared with the prior art, the beneficial effects of the technical solution of the present invention are as follows: the present invention provides a construction platform for an auxiliary structure of an overpass without being enclosed and its installation device and method, the construction platform for an auxiliary structure of an overpass without being enclosed comprises a support column, a support beam, a connecting beam, a suspension rod and a working platform, a plurality of the support columns are arranged on both sides of the main bridge deck of the overpass, the support beam is arranged horizontally above the support column and fixedly connected to the support column, the connecting beam is arranged horizontally and fixedly connected to one end of the support beam, the suspension rod is arranged vertically, the upper end of the suspension rod is fixedly connected to the connecting beam, the lower end of the suspension rod is fixedly connected to the working platform, and the working platform is suspended below the main body of the overpass through the suspension rod. The present invention sets a support column on the bridge deck, and connects the working platform through the support beam, the connecting beam and the suspension rod, and the working platform is suspended below the main body of the overpass, which is a platform for carrying construction personnel and construction materials during the construction of the auxiliary structure of the overpass, and the load of the working platform can be effectively transmitted to the bridge deck. The use of the present invention for construction does not require closing traffic or setting up scaffolding, which effectively solves the construction safety of the auxiliary structure of the bridge and the impact on road traffic. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a longitudinal schematic diagram of a non-enclosed construction platform for an auxiliary structure of a flyover in an embodiment.

[0016] Figure 2 It is a top view schematic diagram of the installation device of the construction platform for non-enclosed installation of the auxiliary structure of the overpass in Example 2.

[0017] Figure 3 This is a schematic diagram of the first state of the installation device of the construction platform for the auxiliary structure of the overpass in Example 2.

[0018] Figure 4 This is a schematic diagram of the second state of the installation device of the construction platform for non-enclosed installation of the auxiliary structure of the overpass in Example 2.

[0019] Figure 5 This is a schematic diagram of an unenclosed construction platform of an auxiliary structure of an overpass with multiple working platforms in Example 3.

[0020] Among them: 1. The main body of the overpass; 2. Support columns; 3. Support beams; 4. Connecting beams; 5. Suspension rods; 6. Working platforms; 7. Connecting rods; 8. Transition platforms; 9. Tracks; 10. Sliding trolleys; 1001. Lifting beams; 11. Hydraulic lifting devices; 12. Lifting ropes; DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. Example

[0023] like Figure 1 As shown, this embodiment provides a non-enclosed construction platform for an auxiliary structure of an overpass, including support columns 2, support beams 3, connecting beams 4, suspension rods 5 and a working platform 6, a number of the support columns 2 are arranged on both sides of the bridge deck of the overpass body 1, the support beams 3 are horizontally arranged above the support columns 2 and fixedly connected to the support columns 2, the connecting beams 4 are horizontally arranged and fixedly connected to one end of the support beams 3, the suspension rods 5 are vertically arranged, the upper ends of the suspension rods 5 are fixedly connected to the connecting beams 4, and the lower ends of the suspension rods 5 are fixedly connected to the working platform 6, and the working platform 6 is suspended below the overpass body 1 by the suspension rods 5.

[0024] In the specific implementation process, if the bridge deck of the overpass main body 1 is a reinforced concrete structure, the bottom of the support column 2 is connected to the bridge deck of the overpass main body 1 through a connecting piece pre-buried in the bridge deck of the overpass main body 1; the connecting piece is a connecting bolt and a connecting nut. If the bridge deck of the overpass main body 1 is a steel structure, the bottom of the support column 2 is welded to the bridge deck of the overpass main body 1.

[0025] In the specific implementation process, the working platform 6 is fixedly connected to the bottom of the overpass by a plurality of connecting rods 7. The purpose of the connecting rods 7 is to improve the overall strength of the working platform 6 and prevent it from deformation.

[0026] In the specific implementation process, the number of the support columns 2, support beams 3, connecting beams 4, suspension rods 5, and working platforms 6 are all multiple. Multiple groups of support columns 2 are arranged at equal intervals along the direction of the overpass body 1, and each group includes 4 support columns 2, 2 on each side.

[0027] In the specific implementation process, a plurality of the working platforms 6 are arranged in sequence under the overpass body 1, and adjacent working platforms 6 are connected by transition platforms 8, so that the working platforms 6 and the transition platforms 8 are fully covered under the overpass body 1. The working platforms 6 and the transition platforms 8 are welded and assembled by channel steel according to the design specifications.

[0028] In the specific implementation process, the working platform 6 and the transition platform 8 are covered with steel gangplanks. Example

[0029] like Figure 2-4 As shown, this embodiment provides an installation device for a construction platform for installing the auxiliary structure of the overpass in an unclosed manner as described in Embodiment 1, including two parallel tracks 9 arranged on the bridge deck of the overpass main body 1 and in the same direction as the overpass main body 1, a sliding trolley 10 is provided on the two parallel tracks 9, a lifting beam 1001 perpendicular to the direction of the overpass main body 1 is provided on the sliding trolley 10, hydraulic lifting devices 11 are provided at both ends of the lifting beam 1001, a lifting rope 12 is transmission-connected below the hydraulic lifting device 11, and the end of the lifting rope 12 is connected to the connecting beam 4.

[0030] In the specific implementation process, the hoisting rope 12 adopts a steel strand, and the hydraulic lifting device 11 adopts a steel strand hydraulic synchronous hoist. The working principle of the steel strand hydraulic synchronous hoist is to use a hydraulic lifter as a lifting tool and a flexible steel strand as a load-bearing rigging. The hydraulic lifter is a core-through structure, through which the steel strand passes. The wedge-shaped anchors at both ends of the hydraulic lifter have a one-way self-locking function. When the anchor is working, it will automatically lock the steel strand, and when it is not working, it will release the steel strand. During the lifting process, the main oil cylinder of the lifter is controlled by the hydraulic system to extend and retract, driving the steel strand and the weight to move up and down. The computer control system will monitor the displacement, pressure and other parameters of each lifting point in real time, and automatically adjust the flow and pressure of the hydraulic system according to these data to ensure that all lifting points move synchronously and achieve smooth lifting of heavy objects. Example

[0031] This embodiment provides a method for using the installation device for the construction platform for the auxiliary structure of the overpass without being enclosed as described in the second embodiment, comprising the following steps: S1: Assemble the connecting beam 4, the suspension rod 5 and the working platform 6 on the ground; in this embodiment, the connecting beam 4, the suspension rod 5 and the working platform 6 are all steel structures, and the assembly connection method is welding.

[0032] S2: Figure 3 As shown, the sliding trolley 10 moves along the track 9 to the top of the working platform 6 to be installed, and connects the end of the lifting rope 12 to the connecting beam 4; in this embodiment, a hook is provided at the end of the lifting rope 12, and a lifting ring is provided at the top of the connecting beam 4. The connection between the lifting rope 12 and the connecting beam 4 can be achieved by inserting the hook into the lifting ring and locking it.

[0033] S3: The hydraulic lifting device 11 is activated to lift the assembled connecting beam 4, suspension rod 5 and working platform 6 through the lifting rope 12 until the connecting beam 4 contacts the bottom of the lifting beam 1001, and the connecting beam 4 is temporarily connected to the lifting beam 1001 through a temporary connecting piece; in this embodiment, the connecting beam 4 and the lifting beam 1001 are provided with corresponding connecting flanges, and the temporary connecting pieces are bolts and nuts.

[0034] S4: Figure 4 As shown, the sliding trolley 10 moves along the track 9 to the installation position, and the connecting beam 4 is fixedly connected to the support beam 3 set there, thereby completing the installation of the working platform 6; in this embodiment, the support beam 3 is also a steel structure, and the connection method between the support beam 3 and the connecting beam 4 is welding.

[0035] S5: Remove the temporary connection parts to release the connection between the connecting beam 4 and the lifting beam 1001.

[0036] S6: Figure 5 As shown, the sliding trolley 10 moves to the top of the next work platform 6 to be installed, and the above steps S1-S5 are repeated to achieve continuous installation of multiple work platforms 6.

[0037] In the specific implementation process, the method also includes: after completing the installation of all working platforms 6, installing the transition platform 8 on the adjacent working platform 6, then laying steel springboards on the working platform 6 and the transition platform 8, and installing the enclosure structure on the sides of the working platform 6 and the transition platform 8.

[0038] In the specific implementation process, after the installation of all the working platforms 6 is completed, the sides of the working platforms 6 and the transition platform 8 are supplemented and closed. At the same time, a fixed steel ladder is installed for the workers to go up and down.

[0039] In the specific implementation process, the working platform 6 and the transition platform 8 are covered with fireproof cloth, and horizontal nets are hung under the working platform 6 and the transition platform 8 to prevent falling. And height limit signs are set on the facades of the working platform 6 and the transition platform 8 to remind passing vehicles to pay attention to the height limit.

[0040] The number and size of the working platform 6 and the transition platform 8 are flexibly designed according to the size of the overpass. Taking an actual project in a certain place as an example, there are 9 working platforms 6 and 8 transition platforms 8. The length of the working platform 6 and the transition platform 8 are both 13 to 15.4 meters, the width is 2.0 meters, and the lowest point is 4.5 meters above the ground. Therefore, the total length of the construction platform is 34.0 meters and the total width is 13 to 15.4 meters.

[0041] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A construction platform for an auxiliary structure of an overpass without being enclosed, characterized in that: The invention comprises a support column (2), a support beam (3), a connecting beam (4), a suspension rod (5) and a working platform (6), wherein a plurality of the support columns (2) are arranged on both sides of the bridge deck of the overpass body (1), the support beam (3) is arranged horizontally above the support column (2) and is fixedly connected to the support column (2), the connecting beam (4) is arranged horizontally and is fixedly connected to one end of the support beam (3), the suspension rod (5) is arranged vertically, the upper end of the suspension rod (5) is fixedly connected to the connecting beam (4), the lower end of the suspension rod (5) is fixedly connected to the working platform (6), and the working platform (6) is suspended below the overpass body (1) through the suspension rod (5).

2. The overpass auxiliary structure non-enclosed construction platform according to claim 1 is characterized in that: If the deck of the overpass main body (1) is a reinforced concrete structure, the bottom of the support column (2) is connected to the deck of the overpass main body (1) via a connecting piece pre-buried in the deck of the overpass main body (1); if the deck of the overpass main body (1) is a steel structure, the bottom of the support column (2) is connected to the deck of the overpass main body (1) by welding.

3. The overpass auxiliary structure non-enclosed construction platform according to claim 1 is characterized in that: The working platform (6) is fixedly connected to the bottom of the overpass via a plurality of connecting rods (7).

4. The overpass auxiliary structure non-enclosed construction platform according to claim 1 is characterized in that: The number of the support columns (2), the support beams (3), the connecting beams (4), the suspension rods (5), and the working platforms (6) are all multiple.

5. The overpass auxiliary structure non-enclosed construction platform according to claim 1 is characterized in that: A plurality of the working platforms (6) are arranged in sequence below the main body of the overpass (1), and adjacent working platforms (6) are connected via transition platforms (8), so that the working platforms (6) and the transition platforms (8) are fully paved below the main body of the overpass (1).

6. The overpass auxiliary structure non-enclosed construction platform according to claim 1, characterized in that: The working platform (6) and the transition platform (8) are covered with steel springboards.

7. An installation device for a construction platform for installing an auxiliary structure of a skybridge without being enclosed as claimed in any one of claims 1 to 6, characterized in that: The invention comprises two parallel tracks (9) arranged on the bridge deck of a main body of the overpass (1) and in the same direction as the main body of the overpass (1); a sliding trolley (10) is arranged on the two parallel tracks (9); a lifting beam (1001) perpendicular to the direction of the main body of the overpass (1) is arranged on the sliding trolley (10); hydraulic lifting devices (11) are arranged at both ends of the lifting beam (1001); a lifting rope (12) is transmission-connected below the hydraulic lifting device (11); and the end of the lifting rope (12) is connected to the connecting beam (4).

8. A method for using the installation device for the construction platform for the auxiliary structure of the overpass without being enclosed as claimed in claim 7, characterized in that: The following steps are involved: S1: Assembling the connecting beam (4), the suspension rod (5), and the working platform (6) on the ground; S2: The sliding trolley (10) moves along the track (9) to the top of the work platform (6) to be installed, and the end of the lifting rope (12) is connected to the connecting beam (4); S3: The hydraulic lifting device (11) is activated to lift the assembled connecting beam (4), the suspension rod (5), and the working platform (6) through the lifting rope (12) until the connecting beam (4) contacts the bottom of the lifting beam (1001), and the connecting beam (4) is temporarily connected to the lifting beam (1001) through a temporary connecting piece; S4: The sliding trolley (10) moves along the track (9) to the installation position, and the connecting beam (4) is fixedly connected to the support beam (3) set there, thereby completing the installation of the working platform (6); S5: removing the temporary connection piece, so that the connection relationship between the connection beam (4) and the lifting beam (1001) is released; S6: The trolley moves to the top of the next work platform (6) to be installed, and the above steps S1-S5 are repeated to achieve continuous installation of multiple work platforms (6).

9. The method for using the installation device for the construction platform for the auxiliary structure of the overpass without being enclosed according to claim 7 is characterized in that: The method further comprises: after completing the installation of all the working platforms (6), installing a transition platform (8) on an adjacent working platform (6), and then laying steel gangplanks on the working platform (6) and the transition platform (8).

10. The method for using the installation device for the construction platform for the auxiliary structure of the overpass without being enclosed according to claim 7, characterized in that: After all the working platforms (6) are installed, the sides of the working platforms (6) and the transition platform (8) are supplemented and closed.

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