High-place operation construction platform

Abstract

The utility model relates to a high-place operation construction platform. The high-place operation construction platform comprises a ground foundation, a supporting assembly, a cross beam, a cover beam operation platform, a bottom formwork pre-arranged on the cover beam operation platform and a bailey truss formed by connecting a plurality of sets of bailey beams. The bottom of the supporting assembly is connected with a ground foundation, and the top of the supporting assembly is connected with the bailey truss. The cross beam is erected on the bailey truss, and the bent cap operation platform is fixed on the cross beam; the bottom formworks are arranged on the capping beam operation platform to form an integrated structure, the number of the bottom formworks is two, and the two bottom formworks are symmetrically distributed on the capping beam operation platform and used for making contact with the capping beam to control the elevation position of the capping beam. The bailey beams are assembled in advance to form the bailey truss, so that the bailey truss does not need to be slowly built in the high altitude; and the bottom formwork is assembled on the capping beam operation platform in advance, so that the hoisting time is shortened, the hoisting frequency is reduced, the elevation position of the capping beam is conveniently controlled, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction brackets, in particular to a high-altitude operation construction platform. Background Art

[0002] At present, the types of systems that can be used in bridge cap construction include steel beam method, bracket method, embedded steel plate welded triangular steel support method, hoop method, etc. When the cantilever of the cap beam is relatively long, the bracket method is preferred in construction. There are two commonly used bracket force systems: ground-mounted fastener full-height scaffolding and Bailey beam bracket.

[0003] The complex support system for concrete bridge construction composed of Bailey beams and steel pipe columns has the advantages of large bearing capacity, strong adaptability, simple erection and reusability, so it is widely used in the construction of cast-in-place concrete bridges. The steel pipe Bailey beam combined support method is also widely used due to its advantages of simple structure, convenient transportation, fast construction and easy disassembly. However, the full-chamber support and Bailey beam support system occupy a large area, have a slow construction speed and consume a lot of resources. During the installation process of conventional beam-column Bailey support technology, a crane is often used in conjunction with manual high-altitude installation, especially the construction of the aerial work platform is time-consuming, the workers have to operate for a long time at high altitude, and the difficulty is high. For example, the Bailey beam needs to be hoisted to a high altitude for installation, and the bottom template used for the cap beam elevation position needs to be installed after the Bailey beam is installed and the cap beam operation platform is laid before being hoisted to a high altitude for installation. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of the utility model is to provide a high-altitude working construction platform to solve the problems of the existing beam-column Bailey support, which is time-consuming to build, the workers' high-altitude operation time is long, and the operation is difficult.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A high-altitude operation construction platform comprises a ground foundation, a support assembly, a crossbeam, a cap beam operating platform, a bottom template preset on the cap beam operating platform, and a Bailey truss formed by connecting a plurality of groups of Bailey beams to each other; the bottom of the support assembly is connected to the ground foundation, and the top of the support assembly is connected to the Bailey truss; the crossbeam is erected on the Bailey truss, and the cap beam operating platform is fixed on the crossbeam; the bottom template is arranged on the cap beam operating platform to form an integrated structure, the number of the bottom templates is two, the two bottom templates are symmetrically distributed on the cap beam operating platform, and the two bottom templates are used to contact with the cap beam to control the elevation position of the cap beam.

[0007] As a preferred embodiment, the support assembly includes an outer support assembly and an inner support assembly, the bottom ends of the outer support assembly and the inner support assembly are connected to the ground foundation, and the top ends of the outer support assembly and the inner support assembly are connected to the Bailey truss; the number of outer support assemblies is two groups, and the two groups of outer support assemblies are symmetrically distributed on both sides of the inner support assembly.

[0008] As a preferred embodiment, the outer support assembly includes at least two double steel pipe columns, and the two double steel pipe columns are distributed side by side on the ground foundation; wherein, the four double steel pipe columns of the two outer support assemblies are distributed in a rectangular shape in the vertical direction, the bottom ends of all the double steel pipe columns are connected to the ground foundation, the top ends of all the double steel pipe columns are connected to the Bailey truss, and all the double steel pipe columns are connected to the inner support assembly through the first horizontal support rod.

[0009] As a preferred embodiment, the two double steel pipe columns of each group of external support assemblies are connected by multiple groups of cross-distributed first diagonal braces, and the two double steel pipe columns of each group of external support assemblies are also connected by multiple second horizontal support rods.

[0010] As a preferred embodiment, the internal support assembly includes at least four single-tube steel pipe columns, which are distributed in a rectangular shape on the ground foundation; the bottom ends of the four single-tube steel pipe columns are connected to the ground foundation, the top ends of the four single-tube steel pipe columns are connected to the Bailey truss, and the four single-tube steel pipe columns are respectively connected to the four double-splice steel pipe columns through the first horizontal support rod.

[0011] As a preferred embodiment, a plurality of cross-distributed second diagonal braces are provided between two adjacent single-tube steel pipe columns, and a plurality of third horizontal support rods are provided between two adjacent single-tube steel pipe columns; the single-tube steel pipe columns are provided with a column fixing frame, which is used to connect the pier columns.

[0012] As a preferred embodiment, the ground foundation includes a pedestal and a concrete foundation, the bottom end of the inner support assembly is connected to the pedestal, the number of ground foundations is two, and the bottom ends of the two groups of outer support assemblies are respectively connected to the two ground foundations.

[0013] As a preferred embodiment, the high-altitude construction platform also includes a platform frame and a tensioning work platform. The platform frame is installed on the outside of the bottom formwork, and the tensioning work platform is installed on the platform frame. The bottom formwork, the platform frame and the tensioning work platform form an integrated structure, and the tensioning work platform is in contact with both sides of the cap beam.

[0014] As a preferred embodiment, the high-altitude working construction platform also includes guardrails, which are arranged on the edges of both sides of the cap beam operating platform.

[0015] As a preferred embodiment, the high-altitude working construction platform also includes a skirting board, the number of the skirting boards is two, the two skirting boards are respectively arranged at both ends of the cap beam operating platform, and the skirting boards are connected to the guardrail.

[0016] In general, the utility model has the following advantages:

[0017] The high-altitude working construction platform of the utility model forms a Bailey truss by assembling Bailey beams in advance, eliminating the need to slowly build the Bailey truss in the air; and assembling the bottom formwork on the cap beam operating platform in advance, which not only reduces the lifting time and number of times, but also facilitates the control of the cap beam elevation position, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main view of a high-altitude working construction platform.

[0019] Figure 2 for Figure 1 AA section view.

[0020] Figure 3 for Figure 1 BB cross-sectional view.

[0021] Figure 4 Schematic diagram of the concrete foundation.

[0022] Among them, 1 is the pedestal, 2 is the concrete foundation, 3 is the pier, 4 is the external support assembly, 41 is the double-piece steel pipe column, 42 is the first diagonal brace, 43 is the second horizontal support rod, 5 is the internal support assembly, 51 is the third horizontal support rod, 52 is the second diagonal brace, 53 is the single-tube steel pipe column, 6 is the column fixing frame, 7 is the anchor bar, 8 is the first horizontal support rod, 13 is the Bailey truss, 14 is the cross beam, 15 is the cap beam, 19 is the bottom formwork, 20 is the skirting board, 21 is the guardrail, 22 is the cap beam operating platform, 23 is the tensioning operation platform, and 24 is the platform frame. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with specific implementation methods.

[0024] like Figure 1As shown, the embodiment provides a high-altitude working construction platform, including a ground foundation, a support assembly, a crossbeam 14, a cap beam operating platform 22, a bottom template 19 preset on the cap beam operating platform, and a Bailey truss 13 formed by connecting multiple groups of Bailey beams to each other; the bottom of the support assembly is connected to the ground foundation, and the top of the support assembly is connected to the Bailey truss 13; the crossbeam 14 is erected on the Bailey truss 13, and the cap beam operating platform 22 is fixed on the crossbeam 14; the bottom template 19 is arranged on the cap beam operating platform 22 to form an integrated structure, the number of the bottom templates 19 is two, the two bottom templates 19 are symmetrically distributed on the cap beam operating platform 22, and the two bottom templates 19 are used to contact with the cap beam 15 to control the elevation position of the cap beam 15. In this embodiment, the ground foundation is an existing concrete foundation 2 or a pedestal 1 structure, the supporting assembly is an existing steel pipe column, the cross beam 14, the cap beam operating platform 22 and the bottom template 19 are all existing structures, and the specific structure of the Bailey truss 13 is: a number of 321-type Bailey beams are connected to form six rows of Bailey beam frames of the same length, and then the six rows of Bailey beam frames are divided into two rows of Bailey truss 13 sub-units for connection and fixation, each row of Bailey truss 13 sub-units includes three rows of Bailey beam frames, and the two rows of Bailey truss 13 sub-units are connected and fixed by cross-distributed channel steel supports to form a Bailey truss 13.

[0025] The construction process of the high-altitude working construction platform of this embodiment is as follows: first, cast the ground foundation, then hoist the support assembly and connect it to the ground foundation, then hoist the Bailey truss 13 and connect it to the top of the support assembly, and then connect and fix multiple beams 14 to the Bailey truss 13 to form a support frame system for supporting the cap beam operating platform 22; lay the cap beam operating platform 22 on the beam 14. Since the bottom template 19 is assembled and installed with the cap beam operating platform 22 in advance, when the cap beam operating platform 22 is laid on the beam 14, the bottom template 19 has also been assembled. There is no need to lay the cap beam operating platform 22 first and then hoist the bottom template 19 onto the cap beam operating platform 22 as in the prior art. By assembling the bottom template 19 with the cap beam operating platform 22 in advance, the time and number of high-altitude hoisting are reduced, the elevation position of the cap beam 15 is controlled, and the overall assembly is completed.

[0026] like Figure 1 As shown, in some embodiments, the support assembly includes an outer support assembly 4 and an inner support assembly 5, the bottom ends of the outer support assembly 4 and the inner support assembly 5 are connected to the ground foundation, and the top ends of the outer support assembly 4 and the inner support assembly 5 are connected to the Bailey truss 13; the number of the outer support assembly 4 is two groups, and the two groups of outer support assemblies 4 are symmetrically distributed on both sides of the inner support assembly 5. By setting such an outer support assembly 4 and an inner support assembly 5, less area is occupied and traffic is not affected.

[0027] like Figure 3As shown, in some embodiments, the outer support assembly 4 includes at least two double-joined steel pipe columns 41, and the two double-joined steel pipe columns 41 are arranged side by side on the ground foundation; wherein, the four φ426*8mm double-joined steel pipe columns 41 of the two outer support assemblies 4 are arranged in a rectangular shape in the vertical projection, the bottom ends of all the double-joined steel pipe columns 41 are connected to the ground foundation, the top ends of all the double-joined steel pipe columns 41 are connected to the Bailey truss 13, and all the double-joined steel pipe columns 41 are connected to the inner support assembly 5 through the first horizontal support rod 8. By configuring the outer support assembly 4 in this way, the problems of large floor space and difficult assembly such as the existing support system can be avoided.

[0028] like Figure 3 As shown, in some embodiments, the two double-jointed steel pipe columns 41 of each group of outer support assemblies 4 are connected by multiple groups of cross-distributed first diagonal braces 42, and the two double-jointed steel pipe columns 41 of each group of outer support assemblies 4 are also connected by multiple second horizontal support rods 43. Figure 3 As shown, there are three groups of cross-distributed first diagonal braces 42 and five second horizontal support rods 43. The stability of the outer support assembly 4 is improved by providing the first diagonal braces 42 and the horizontal support rods.

[0029] like Figure 2 As shown, in some embodiments, the inner support assembly 5 includes at least four single-tube steel pipe columns 53, and the four single-tube steel pipe columns 53 are distributed in a rectangular shape on the ground foundation; the bottom ends of the four single-tube steel pipe columns 53 are connected to the ground foundation, and the top ends of the four single-tube steel pipe columns 53 are connected to the Bailey truss 13, and the four single-tube steel pipe columns 53 are respectively connected to the four double-piece steel pipe columns 41 through the first horizontal support rod 8. The single-tube steel pipe columns 53 of this embodiment are φ630*8mm single-tube steel pipe columns 53, and the four single-tube steel pipe columns 53 respectively support the Bailey truss 13. A sand box is provided between the single-tube steel pipe columns 53 and the Bailey truss 13 to facilitate assembly and improve the firmness of the connection between the two. The first horizontal support rod 8 is an I20 steel horizontal support, and the inner support assembly 5 and the outer support assembly 4 are connected through the first horizontal support rod 8, so that the two will not be offset and tilted, and the stability of the overall support assembly is improved. As shown Figure 1 As shown, the single-tube steel pipe column 53 of this embodiment is formed by splicing two sections of steel pipe columns, and the two are connected by bolts.

[0030] like Figure 2 As shown, in some embodiments, two adjacent single-tube steel pipe columns 53 are connected by multiple sets of cross-distributed second diagonal braces 52, and two adjacent single-tube steel pipe columns 53 are connected by multiple third horizontal support rods 51; the single-tube steel pipe columns 53 are provided with a column fixing frame 6, and the column fixing frame 6 is used to connect the pier column 3. Figure 2As shown, two adjacent single-tube steel columns 53 refer to two single-tube steel columns 53 located on the same right side or the same left side, the number of the second diagonal braces 52 is three, the number of the third horizontal support rods 51 is three, and a third horizontal support rod 51 is arranged between two adjacent groups of diagonal braces. With such an arrangement of the inner support assembly 5, the stability is high. Figure 1 As shown, the structure of the column fixing frame 6 is that a plurality of rods are interconnected to form a space surrounding the pier 3. There are multiple column fixing frames 6, and the multiple column fixing frames 6 are evenly spaced along the length direction of the single-tube steel pipe column 53. The single-tube steel pipe column 53 is connected and fixed to the pier 3 through the column fixing frame 6 to prevent the single-tube steel pipe column 53 from tilting and causing instability of the Bailey truss 13 located on the top thereof.

[0031] like Figure 1 , 4 As shown, in some embodiments, the ground foundation includes a cap 1 and a 4.0*1.8*0.6mC30% concrete foundation 2, the bottom end of the inner support assembly 5 is connected to the cap 1, the number of ground foundations is two, the two ground foundations are symmetrically distributed on both sides of the cap 1, and the bottom ends of the two groups of outer support assemblies 4 are respectively connected to the two ground foundations. Exemplarily, the concrete foundation 2 can be a cylindrical or cubic structure, the bottom end of the inner support assembly 5 is fixed to the cap 1 through anchor bars 7 and nuts, and the bottom end of the outer support assembly 4 is fixed to the cap 1 through anchor bars 7 and nuts.

[0032] like Figure 1 As shown, in some embodiments, the high-altitude construction platform also includes a platform frame 24 and a tensioning work platform 23. The number of platform frames 24 is two, and the two platform frames 24 correspond to the two bottom templates 19 respectively; the platform frame 24 is installed on the outside of the bottom template 19, the number of tensioning work platforms 23 is two, and the two tensioning work platforms 23 correspond to the two platform frames 24 respectively, and the tensioning work platform 23 is installed on the platform frame 24. The bottom template 19, the platform frame 24 and the tensioning work platform 23 form an integrated structure, and the tensioning work platform 23 contacts both sides of the cap beam 15. Since the bottom surface of the cap beam 15 is not completely horizontal, and a part of it has an inclined angle, by setting the platform frame 24 and the tensioning work platform 23, the tensioning work platform 23 is a prefabricated platform for the convenience of on-site construction personnel to perform tensioning construction work on the cap beam 15. The functions of the platform frame 24 are: 1. Adjust the elevation position of the bottom template 19; 2. Provide support for the side of the bottom template 19 and the tensioning work platform 23. In this embodiment, the platform frame 24 and the tensioning work platform 23 are connected to form a whole, so that the bottom formwork 19, the platform frame 24 and the tensioning work platform 23 can be hoisted on the cap beam operating platform 22 in an integrated manner, thereby improving construction efficiency.

[0033] like Figure 1As shown, in some embodiments, the high-altitude construction platform further includes a guardrail 21, which is arranged on the edges of both sides of the cap beam operation platform 22. Exemplarily, the guardrail 21 is formed by splicing vertically arranged rods with horizontally arranged rods, the two sides of the cap beam operation platform 22 are the long sides of the cap beam operation platform 22, and the two ends of the cap beam operation platform 22 are the short sides of the cap beam operation platform 22; by setting the guardrail 21, it is possible to prevent the objects placed on the cap beam operation platform 22 from falling from a high altitude, and to protect the safety of the construction personnel on the cap beam operation platform 22. In addition, in order to further improve the protection, a protective net can be installed on the guardrail 21.

[0034] like Figure 1 As shown, in some embodiments, the high-altitude working construction platform further includes a skirting board 20, and the number of the skirting boards 20 is two, and the two skirting boards 20 are respectively arranged at the two ends of the cap beam operating platform 22, and the skirting boards 20 are connected to the guardrail 21. Exemplarily, the number of the skirting boards 20 is two, and the two skirting boards 20 are respectively arranged vertically at the two ends of the cap beam operating platform 22, and cooperate with the guardrails 21 arranged on both sides of the cap beam operating platform 22, so that the cap beam operating platform 22 is surrounded on all sides; by setting the skirting boards 20 and the guardrails 21, the cap beam operating platform 22 is surrounded on all sides, which can not only prevent the objects placed on the cap beam operating platform 22 from falling from a high altitude, but also protect the safety of the construction personnel on the cap beam operating platform 22.

[0035] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A high-altitude construction platform, characterized by: It includes a ground foundation, a supporting assembly, a crossbeam, a cap beam operating platform, a bottom formwork preset on the cap beam operating platform, and a Bailey truss formed by connecting multiple groups of Bailey beams to each other; the bottom of the supporting assembly is connected to the ground foundation, and the top of the supporting assembly is connected to the Bailey truss; the crossbeam is erected on the Bailey truss, and the cap beam operating platform is fixed on the crossbeam; the bottom formwork is arranged on the cap beam operating platform to form an integrated structure, the number of the bottom formwork is two, the two bottom formworks are symmetrically distributed on the cap beam operating platform, and the two bottom formworks are used to contact with the cap beam to control the elevation position of the cap beam.

2. A high-altitude construction platform according to claim 1, characterized in that: The support assembly includes an outer support assembly and an inner support assembly. The bottom ends of the outer support assembly and the inner support assembly are connected to the ground foundation, and the top ends of the outer support assembly and the inner support assembly are connected to the Bailey truss. There are two groups of outer support assemblies, and the two groups of outer support assemblies are symmetrically distributed on both sides of the inner support assembly.

3. A high-altitude construction platform according to claim 2, characterized in that: The outer support assembly includes at least two double-jointed steel pipe columns, and the two double-jointed steel pipe columns are distributed side by side on the ground foundation; wherein, the four double-jointed steel pipe columns of the two outer support assemblies are distributed in a rectangular shape in the vertical projection, the bottom ends of all the double-jointed steel pipe columns are connected to the ground foundation, the top ends of all the double-jointed steel pipe columns are connected to the Bailey truss, and all the double-jointed steel pipe columns are connected to the inner support assembly through the first horizontal support rod.

4. A high-altitude construction platform according to claim 3, characterized in that: The two double-jointed steel pipe columns of each set of external support components are connected by multiple sets of cross-distributed first diagonal braces, and the two double-jointed steel pipe columns of each set of external support components are also connected by multiple second horizontal support rods.

5. A high-altitude construction platform according to claim 3, characterized in that: The internal support assembly includes at least four single-tube steel pipe columns, which are distributed in a rectangular shape on the ground foundation; the bottom ends of the four single-tube steel pipe columns are connected to the ground foundation, the top ends of the four single-tube steel pipe columns are connected to the Bailey truss, and the four single-tube steel pipe columns are respectively connected to the four double-piece steel pipe columns through the first horizontal support rod.

6. A high-altitude construction platform according to claim 5, characterized in that: A plurality of cross-distributed second diagonal braces are arranged between two adjacent single-tube steel pipe columns, and a plurality of third horizontal support rods are arranged between two adjacent single-tube steel pipe columns; the single-tube steel pipe columns are provided with column fixing frames, which are used to connect pier columns.

7. A high-altitude construction platform according to claim 5, characterized in that: The ground foundation includes a pedestal and a concrete foundation. The bottom end of the inner support assembly is connected to the pedestal. There are two ground foundations, and the bottom ends of the two groups of outer support assemblies are respectively connected to the two ground foundations.

8. A high-altitude construction platform according to claim 1, characterized in that: It also includes a platform frame and a tensioning work platform. The platform frame is installed on the outside of the bottom formwork, and the tensioning work platform is installed on the platform frame. The bottom formwork, the platform frame and the tensioning work platform form an integrated structure, and the tensioning work platform is in contact with both sides of the cap beam.

9. A high-altitude construction platform according to claim 1, characterized in that: It also includes guardrails, which are arranged on the edges of both sides of the cap beam operating platform.

10. A high-altitude construction platform according to claim 9, characterized in that: It also includes two skirting boards, which are respectively arranged at two ends of the cap beam operating platform, and the skirting boards are connected to the guardrail.

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