Fabricated jig frame for steel anchor beam and steel corbel of pre-assembled cable-stayed bridge

Abstract

The utility model discloses an assembly type jig frame of a pre-assembled cable-stayed bridge steel anchor beam and a steel corbel. The assembly type jig frame comprises a vertical support, a transverse support, a connecting transverse support, supporting legs, an operation platform, an elevation adjusting jack, a connecting steel plate and a foundation. The vertical supports and the transverse supports are connected through bolts, the vertical supports and the supporting legs are connected through bolts, the bottoms of the vertical supports and the bottoms of the supporting legs are fixed to a foundation through connecting steel plates, an operation platform framework is formed, the mounting and dismounting process is simplified, and the reuse efficiency is improved. The transverse supports on the upper portion are fixedly connected with the connecting transverse supports through bolts, the stability in the installation process is improved, the accident of overturning caused by uneven stress in the splicing process is prevented, and the elevation adjusting jacks are installed at the tops of the vertical supports. The steel anchor beam can be conveniently and rapidly assembled on the ground, safety and reliability are achieved, the construction efficiency of a cable bent tower anchoring area can be improved, and the project construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the field of steel anchor beam construction, and more specifically to an assembled jig for pre-assembled cable-stayed bridge steel anchor beams and steel corbels. Background Technique

[0002] Conventionally, during the installation and construction of steel anchor beams, they are hoisted in sections to the construction area, and after each steel corbel is installed and positioned, the steel anchor beam is installed. Using this method, the installation and positioning requirements for a single steel corbel are high. When installing the steel anchor beam, it is easy to affect the positioning of the steel corbel, and the construction time is long, the efficiency is low, and it occupies equipment such as tower cranes for a long time, which greatly restricts the construction period of the cable tower anchorage area. Content of the Utility Model

[0003] Therefore, to address the above deficiencies, the present utility model provides an assembled jig for pre-assembled cable-stayed bridge steel anchor beams and steel corbels. It is assembled integrally on the ground and then hoisted by a tower crane to the construction area for installation and positioning, simplifying the construction process, improving the overall positioning accuracy after installation, enhancing the construction efficiency of the cable tower anchorage area, and shortening the project construction period.

[0004] The present utility model is implemented as follows. An assembled jig for pre-assembled cable-stayed bridge steel anchor beams and steel corbels is constructed, characterized in that it includes vertical supports, horizontal supports, connecting cross braces, legs, operation platforms, elevation adjustment jacks, connecting steel plates, and foundations; between the vertical supports and the horizontal supports, as well as between the vertical supports and the legs, they are all connected by bolts. The bottoms of the vertical supports and the legs are fixed on the foundation through connecting steel plates, forming a working platform skeleton, simplifying the installation and disassembly process and improving the reuse efficiency. Elevation adjustment jacks are provided at the tops of the vertical supports. There are multiple groups of horizontal supports, and the upper horizontal supports are connected and fixed to the connecting cross braces by bolts, improving the stability during the installation process and preventing accidents such as overturning caused by uneven stress during the assembly process.

[0005] Furthermore; a number of connecting steel plates are configured between the vertical supports and the legs and are fixed to the foundation by embedded bolts, increasing the overall stress area and making the structure more stable.

[0006] Furthermore; through the elevation adjustment jacks, the steel anchor beam is in a high-precision horizontal state during the assembly process (within the pre-assembly precision requirements of the steel anchor beam).

[0007] Furthermore; bolt holes corresponding to the operation platform are reserved on the vertical supports, enabling the operation platform to be fixed to the vertical supports using bolts, facilitating the installation of the pads and bolts required for the steel anchor beam.

[0008] The utility model has the following advantages: The utility model discloses an assembled jig for a prefabricated steel anchor beam and steel bracket of a cable-stayed bridge, which includes a foundation, legs, support beams and transverse longitudinal beams. The utility model can realize convenient and fast ground assembly of the steel anchor beam, is safe and reliable, can improve the construction efficiency of the cable tower anchorage area, and shorten the project duration. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is an elevation view of the utility model;

[0010] Figure 2 is a top view of the utility model;

[0011] Figure 3 is a side view of the utility model;

[0012] Among them: 1 - vertical support, 2 - horizontal support, 3 - connecting cross brace, 4 - leg, 5 - connecting steel plate, 6 - operation platform, 7 - elevation adjustment jack, 8 - steel anchor beam and steel bracket, 9 - foundation. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following will combine the attached Figures 1 - 3 The utility model will be described in detail. The technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the utility model.

[0014] The utility model discloses an assembled jig for a prefabricated steel anchor beam and steel bracket of a cable-stayed bridge, which can realize convenient and fast ground assembly of the steel anchor beam, is safe and reliable, can improve the construction efficiency of the cable tower anchorage area, and shorten the project duration. Please refer to Figures 1 - 3 , an assembled jig for a prefabricated steel anchor beam and steel bracket of a cable-stayed bridge, can be implemented in the following manner; it includes a vertical support 1, a horizontal support 2, a connecting cross brace 3, a leg 4, an operation platform 6, an elevation adjustment jack 7, a connecting steel plate 5 and a foundation 9; between the vertical support 1 and the horizontal support 2, and between the vertical support 1 and the leg 4 are connected by bolts, and the bottoms of the vertical support 1 and the leg 4 are fixed on the foundation 9 through the connecting steel plate 5 to form a working platform skeleton, simplifying the installation and disassembly process and improving the reuse efficiency; an elevation adjustment jack 7 is arranged at the top of the vertical support 1, there are multiple groups of horizontal supports 2, and the upper horizontal support 2 is connected and fixed to the connecting cross brace 3 by bolts, improving the stability during the installation process and preventing accidents of overturning caused by uneven stress during the assembly process.

[0015] Among them, a number of connecting steel plates 5 are configured between the vertical support 1 and the leg 4 and fixed on the foundation 9, which can increase the overall stress area and make the structure more stable.

[0016] Among them, the steel anchor beam is in a high-precision horizontal state (within the pre-assembly precision requirements of the steel anchor beam) during the assembly process by means of the elevation adjustment jack 7.

[0017] Among them, bolt holes corresponding to the operation platform 6 are reserved on the vertical support 1, and the operation platform 6 can be fixed on the vertical support 1 with bolts, which is convenient for installing the backing plates and bolts required for the steel anchor beam.

[0018] In order to realize the convenient and rapid positioning and installation of the steel anchor beam and the steel bracket, improve the construction efficiency of the cable tower anchorage area, and shorten the project duration. Compared with the traditional existing technology, the whole installation process is convenient and rapid, without the need to hoist individual blocks to the construction area for separate installation, reducing the occupation of lifting equipment, improving the construction efficiency of the inner platform, and shortening the project duration.

[0019] This technical solution realizes rapid construction by adopting the ground pre-assembly method. Before the initial assembly of the steel anchor beam, after the site is leveled, the foundation 9, the connecting steel plates 5, the vertical support 1, and the legs 4 are poured and installed in sequence. After forming the basic framework, the horizontal support 2 and the connecting cross braces 3 are installed to make it an integral whole, and then the operation platform 6 is installed according to the on-site requirements. Finally, the elevation adjustment jack 7 located on the vertical support 1 is installed to complete the assembly of the steel anchor beam and the steel bracket 8.

[0020] When the steel anchor beam and the steel bracket blocks arrive at the site, first hoist the steel anchor beam to the platform and place it on the platform jacks. By observing the four corner points of the steel anchor beam with a level, the four jacks of the platform are adjusted to make the steel anchor beam in a high-precision horizontal state, and then one side of the steel bracket is installed. After the rubber backing plates and bolts are installed, the other steel bracket is installed. After the installation is completed, it can be hoisted as a whole to the storage area. When subsequent construction is carried out, it can be taken as needed, reducing the occupation of lifting equipment, improving the construction efficiency of the inner platform, and shortening the project duration.

[0021] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An assembled tire frame for pre-assembling steel anchor beams and steel brackets of a cable-stayed bridge, characterized in that; The invention comprises a vertical support (1), a transverse support (2), a connecting transverse support (3), a leg (4), an operating platform (6), a height adjustment jack (7), a connecting steel plate (5) and a foundation (9); the vertical support (1) and the transverse support (2), as well as the vertical support (1) and the leg (4) are connected by bolts, the bottom of the vertical support (1) and the leg (4) are fixed to the foundation (9) by the connecting steel plate (5), so as to form a framework of the operating platform, the transverse support (2) has a plurality of groups, the upper transverse support (2) is connected and fixed to the connecting transverse support (3) by bolts, and the height adjustment jack (7) is installed on the top of the vertical support (1).

2. The assembled tire frame for pre-assembled cable-stayed bridge steel anchor beams and steel brackets according to claim 1, characterized in that: The vertical support (1) and the support legs (4) are provided with a plurality of connecting steel plates (5) which are connected to the foundation (9) by embedded bolts for fixation.

3. The assembled tire frame for pre-assembled steel anchor beams and steel brackets of cable-stayed bridges according to claim 1 is characterized by: Bolt holes corresponding to the operating platform (6) are reserved on the vertical support (1), so that the operating platform (6) can be fixed to the vertical support (1) using bolts, thereby facilitating the installation of the pads and bolts required for the steel anchor beam.

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