Pier-side support for pushing large-tonnage steel beam

Abstract

The utility model provides a pier-side bracket for pushing a large-tonnage steel beam, which is characterized by comprising upright posts arranged on two sides of a pier, an upper backing plate and a lower backing plate respectively arranged at the upper end and the lower end of each upright post, and a top pad arranged on the upper backing plate, and is characterized in that anchoring horizontal support groups are arranged on the upright posts from top to bottom at intervals on the side of the pier; and one end of each layer of anchoring horizontal support group is fixedly connected with the pier, and the other end is fixedly connected with the upright post to form a closed-loop horizontal anchoring support structure. Compared with a non-pier-side support, the support is provided with a pier horizontal support, replacement filling hardening or piling curing is not needed, the material strength of the support can be reduced, the material amount is reduced, the construction cost of a temporary support is reduced, and field installation is convenient; the provided closed-loop anchoring horizontal supporting set is used for coping with horizontal thrust generated by pushing of the steel beam, transverse impact force generated in the pushing process of the steel beam is resisted through a prestress opposite-pulling structure, the bearing capacity of the pushing pier-side support is improved, stable installation of the pier-side support is facilitated, and the pushing requirement of the large-tonnage steel beam is met.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a pier side bracket for pushing a large-tonnage steel beam. Background Art

[0002] With the continuous development of jacking construction technology, more and more steel structure bridge projects adopt jacking construction methods, and some of the steel beams pushed are up to 10,000 tons. In order to stably support the jacking equipment and jacking steel beams, a sturdy jacking temporary support needs to be designed.

[0003] Due to geological conditions, temporary support foundations generally need to be replaced and hardened or piled and solidified. In order to reduce the amount of foundation treatment construction and temporary support materials or to economically weaken the support strength, the jacking assembly platform is generally located at the bridge pier. However, due to the construction area of ​​the pier column foundation and the strength of the pier body, the jacking equipment or steel beam support cannot be completely placed on the foundation, and a pier side support needs to be made. Utility Model Content

[0004] The utility model aims to provide a pier side support for pushing a large-tonnage steel beam which does not require replacement hardening or piling solidification, can reduce construction costs and has sufficient bearing capacity and stability.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a pier-side support for pushing a large-tonnage steel beam, which is characterized in that it comprises columns installed on both sides of the pier, upper pads and lower pads are respectively provided at the upper and lower ends of the columns, and a top pad is provided on the upper pad. It is characterized in that anchor horizontal support groups are arranged on the columns at the pier side from top to bottom at intervals, one end of each layer of anchor horizontal support groups is fixedly connected to the pier, and the other end is fixedly connected to the column, forming a closed-loop horizontal anchor support structure.

[0007] According to the above technical solution, the column includes four steel pipe columns, and the four steel pipe columns are connected by diagonal bracing pipes to form a criss-cross lattice column.

[0008] According to the above technical solution, each layer of anchor horizontal support group is composed of a pair of anchor horizontal supports at the position of two columns close to the pier.

[0009] According to the above technical scheme, each layer of anchor horizontal support group includes a clamping plate, a fixed plate and anchor steel bars. The clamping plate is divided into a left clamping plate and a right clamping plate. The two clamping plates are disconnected at the steel pipe column and arc-shaped holes corresponding to the diameter of the steel pipe column are opened. They are fixedly connected to the corresponding parts of the steel pipe column, and the other side of one clamping plate is fixedly connected to the embedded plate of the pier, and the other side of the other clamping plate is connected to the fixed plate. One end of the anchor steel bar is anchored in the pier, and the other side is connected to the fixed plate.

[0010] According to the above technical solution, the anchor reinforcement is connected to the fixing plate through a pasting plate.

[0011] According to the above technical solution, the fixing plate is in the shape of an elongated strip and is arranged perpendicular to the clamping plate.

[0012] According to the above technical solution, the clamping plate is a double-layer clamping plate structure, which includes an upper plate and a lower plate, the outer ends of the upper plate and the lower plate are connected by a connecting plate, and the inner ends are connected to the steel pipe column.

[0013] According to the above technical solution, the top pad includes a transverse top pad and a longitudinal top pad installed on the transverse top pad.

[0014] According to the above technical solution, the lower pad is fixed to the pier by expansion bolts, and the upper pad is fixed to the transverse top pad by welding.

[0015] According to the above technical scheme, the pier side support for pushing large-tonnage steel beams can be used as a support for pushing equipment and a support support for steel beam erection; as a support for pushing equipment, the pushing equipment is placed on the longitudinal top pad; as a support support for steel beam erection, an adjustment block is placed on the longitudinal top pad.

[0016] The beneficial effects of the utility model are:

[0017] 1. Compared with non-pier side supports, the utility model has horizontal supports for piers, and does not need to be replaced and hardened or piled for solidification. It can not only reduce the strength of the support material, reduce the amount of materials, and reduce the construction cost of temporary supports, but also facilitate on-site installation; and the closed-loop anchor pull horizontal support group provided is used to cope with the horizontal thrust generated by the jacking of the steel beam, and the prestressed tension structure is used to resist the lateral impact force generated during the jacking process of the steel beam, thereby improving the bearing capacity of the jacking pier side support, which is conducive to the stable installation of the pier side support and meets the requirements for jacking of large-tonnage steel beams.

[0018] 2. The utility model can solve the problem of universality of temporary brackets. The components of the designed brackets can be reused as standard parts and universal parts. It also solves the problem of convenience in transportation, hoisting, assembly and disassembly of temporary brackets. The designed bracket components are simple and can be manufactured in blocks in advance in the factory according to the height of the pier. This not only improves the efficiency of bracket manufacturing, but also facilitates assembly and disassembly as well as transportation and hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1The utility model provides a schematic diagram of the installation of a pier-side bracket for pushing a large-tonnage steel beam in an embodiment.

[0021] Figure 2 A three-dimensional diagram of a pier-side support for jacking a large-tonnage steel beam provided in an embodiment of the utility model.

[0022] Figure 3 A partially enlarged schematic diagram of an anchor horizontal support group provided for the implementation of the utility model.

[0023] In the figure: 1. Steel pipe column; 2. Diagonal bracing pipe; 3. Anchor horizontal support; 4. Upper and lower pads; 5. Horizontal top pad; 6. Longitudinal top pad; 7. Bridge pier. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0027] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0032] like Figure 1-3 As shown, the utility model provides a pier-side support for pushing a large-tonnage steel beam, including a column 1 installed on both sides of a bridge pier 7, an upper pad 4 and a lower pad are respectively provided at the upper and lower ends of the column, a transverse top pad 5 is provided on the upper pad 4, a longitudinal top pad 6 is provided on the transverse top pad 5, and an anchor-pull horizontal support group 3 is arranged on the column 1 at intervals from top to bottom on the side of the bridge pier, and one end of each layer of anchor-pull horizontal support group 3 is fixedly connected to the bridge pier 7, and the other end is fixedly connected to the column 1, forming a closed-loop horizontal anchor-pull support structure. Compared with non-pier-side supports with bridge pier horizontal support, the utility model does not need to be replaced and hardened or piled and solidified, which can not only reduce the strength of the support material, reduce the amount of materials, and reduce the construction cost of temporary supports, but also facilitate on-site installation; and the closed-loop anchor-pull horizontal support group provided is used to cope with the horizontal thrust generated by the steel beam pushing, and the prestressed tension structure is used to resist the lateral impact force generated during the steel beam pushing process, thereby improving the bearing capacity of the pushing pier-side support, which is conducive to the stable installation of the pier-side support and meets the requirements for pushing a large-tonnage steel beam.

[0033] In this embodiment, the column 1 includes four parallel steel pipe columns, which are connected to each other by horizontal support tubes and diagonal support tubes 2 to form a criss-cross lattice column. The two ends are welded and fixed to the upper and lower pads 4 respectively. The lower pad 4 can be fixed to the pier with expansion bolts. The upper pad 4 is welded and fixed to the transverse top pad 5. The transverse top pad 5 and the longitudinal top pad 6 are both composed of three I-beams. The longitudinal top pad 6 is stacked on the transverse top pad 5 to increase the longitudinal support range and force-bearing area.

[0034] In this embodiment, each anchor horizontal support group 3 is composed of a pair of anchor horizontal supports near the two columns of the pier. Figure 3 As shown, each layer of anchor horizontal support group 3 includes a clamping plate 31, a fixing plate 32 and an anchor reinforcement 33. The clamping plate 31 is divided into a left clamping plate and a right clamping plate. The two clamping plates are disconnected at the steel pipe column and arc-shaped holes corresponding to the diameter of the steel pipe column are opened. They are welded and fixed to the corresponding positions of the steel pipe column. The other side of one clamping plate is fixedly connected to the embedded plate of the pier 7, and the other side of the other clamping plate is connected to the fixing plate. One end of the anchor reinforcement 33 is anchored into the pier, and the other side is connected to the fixing plate 32 through a pasting plate, forming a closed-loop horizontal anchor support structure. Among them, the clamping plate 31 is a double-layer clamping plate structure, which includes an upper plate and a lower plate. The outer ends of the upper plate and the lower plate are connected by a connecting plate, and the inner ends are welded to the steel pipe column. The fixing plate 32 is in the shape of a long strip and is arranged vertically to the clamping plate 31. The fixing plate can be made of H-shaped steel.

[0035] The utility model can be used as a jacking equipment support and also as a steel beam erection support. As a jacking equipment support, a jacking equipment Y1 is placed on the longitudinal top pad 6, and as a steel beam erection support, an adjustment block Y2 is placed on the longitudinal top pad.

[0036] During the specific production, the specifications and models of each steel component are determined through the modeling calculation options, and the number of anchor horizontal support layers is determined according to the height of the steel pipe column. The utility model can solve the problem of the universality of temporary brackets. The components of the designed brackets can be reused as standard parts and universal parts. It also solves the problem of the convenience of transportation, hoisting, assembly and disassembly of temporary brackets. The designed bracket components are simple and can be manufactured in blocks in advance in the factory according to the height of the pier. It not only improves the efficiency of bracket production, but also facilitates assembly and disassembly as well as transportation and hoisting.

[0037] The embodiments described above are part of the embodiments of the utility model, but not all of the embodiments. The detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model claimed for protection, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A pier-side support for pushing a large-tonnage steel beam, characterized in that: It includes columns installed on both sides of the pier, with an upper pad and a lower pad respectively provided on the upper and lower ends of the columns, and a top pad provided on the upper pad. It is characterized in that anchor horizontal support groups are arranged on the columns on the pier side from top to bottom at intervals, one end of each layer of anchor horizontal support group is fixedly connected to the pier, and the other end is fixedly connected to the column, forming a closed-loop horizontal anchor support structure.

2. The pier side support for pushing a large tonnage steel beam according to claim 1 is characterized in that: The column comprises four steel pipe columns, and the four steel pipe columns are connected by diagonal bracing pipes to form a lattice column in a tic-tac-toe shape.

3. The pier side support for pushing a large tonnage steel beam according to claim 1 or 2, characterized in that: Each layer of anchor horizontal support group is composed of a pair of anchor horizontal supports near the two columns of the pier.

4. The pier side support for pushing a large tonnage steel beam according to claim 3 is characterized in that: Each layer of anchor horizontal support group includes a clamping plate, a fixed plate and anchor steel bars. The clamping plate is divided into a left clamping plate and a right clamping plate. The two clamping plates are disconnected at the steel pipe column and arc-shaped holes corresponding to the diameter of the steel pipe column are opened. They are fixedly connected to the corresponding parts of the steel pipe column. The other side of one clamping plate is fixedly connected to the embedded plate of the pier, and the other side of the other clamping plate is connected to the fixed plate. One end of the anchor steel bar is anchored in the pier, and the other side is connected to the fixed plate.

5. The pier side support for pushing a large tonnage steel beam according to claim 4 is characterized in that: The anchor reinforcement is connected to the fixing plate through a pasting plate.

6. The pier side support for pushing a large tonnage steel beam according to claim 4 is characterized in that: The fixing plate is in the shape of an elongated strip and is arranged perpendicularly to the clamping plate.

7. The pier side support for pushing a large tonnage steel beam according to claim 4 is characterized in that: The clamping plate is a double-layer clamping plate structure, which includes an upper plate and a lower plate. The outer ends of the upper plate and the lower plate are connected by a connecting plate, and the inner ends are connected to the steel pipe column.

8. The pier side support for pushing a large tonnage steel beam according to claim 1 or 2, characterized in that: The top pad comprises a transverse top pad and a longitudinal top pad arranged on the transverse top pad.

9. The pier side support for pushing a large tonnage steel beam according to claim 8 is characterized in that: The lower pad is fixed to the pier by expansion bolts, and the upper pad is fixed to the transverse top pad by welding.

10. The pier side support for pushing a large tonnage steel beam according to claim 8, characterized in that: The pier side bracket for pushing large-tonnage steel beams is used as a pushing equipment bracket or a supporting bracket for steel beam erection; as a pushing equipment bracket, the pushing equipment is placed on the longitudinal top pad; as a supporting bracket for steel beam erection, the adjusting block is placed on the longitudinal top pad.

Images