CN212426684U

CN212426684U - Steel arch bridge hunch seat embedded support and embedded structure

Info

Publication number: CN212426684U
Application number: CN202021702364.1U
Authority: CN
Inventors: 田连民; 张何; 王安文; 薛飞; 渠凯; 刘兴国
Original assignee: Road and Bridge International Co Ltd; China Communications Road and Bridge North China Engineering Co Ltd
Current assignee: Road and Bridge International Co Ltd; China Communications Road and Bridge North China Engineering Co Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-01-29
Anticipated expiration: 2030-08-14

Abstract

The application discloses pre-buried support of steel arch bridge hunch seat and embedded structure, including falling to the ground the rack, it includes support piece, crossbeam, sloping, connecting rod and gag lever post to fall to the ground the rack, the crossbeam with the equal welded fastening of sloping is in support piece is last, the both ends face of connecting rod with support piece welded fastening, the one end of sloping with the one end lateral part welded fastening of crossbeam, a terminal surface of gag lever post with the crossbeam is kept away from the one end welded fastening of crossbeam to the sloping, one side of gag lever post with support piece welded fastening, the one end welded fastening of gag lever post is in the lateral part of connecting rod, the lateral part welded fastening of gag lever post has the regulating part. This scheme can effectively reduce the condition of falling to the ground rack unstability behind the installation steel hunch foot component and take place, and the effectual incident of avoiding taking place because of falling to the ground rack unstability can restrict the adjusting position of first bearing plate, can effectual improvement fall to the ground rack and the installation effectiveness of bearing subassembly.

Description

Steel arch bridge hunch seat embedded support and embedded structure

Technical Field

The application relates to the technical field of steel arch bridges, in particular to an arch base pre-embedded support and a pre-embedded structure of a steel arch bridge.

Background

The steel arch bridge is one of bridge basic systems to the form is various, and the appearance is pleasing to the eye, is the major structure form of long span bridge always, and its leap ability is great, and the durability is good, the maintenance cost is few, but to the pre-buried precision requirement of steel structure bridge hunch foot part installation very high, if great deviation when installing, can influence the atress of bridge structures, influences bridge operation safety. The traditional process method is to manufacture a gantry support, adjust the angle and the elevation of an embedded bearing plate through a chain block, and then weld the gantry support on a support steel bar or a lower support structure.

When the gantry support is used, the gantry support is easy to destabilize under large lateral stress to cause safety accidents; the portal frame method needs to arrange a large number of steel pipe piles around the arch center and weld I-shaped steel on a steel pipe pile support for hoisting, so that material waste is caused, the economical efficiency is poor, in the construction process, although the angle and the elevation of the bearing plate can be adjusted by the chain block, the good fixing effect is not particularly good after the chain block is adjusted, and the steel pipe pile support is easy to deform and deflect when concrete is poured.

SUMMERY OF THE UTILITY MODEL

The main aim of this application provides a steel arch bridge hunch seat embedded support and embedded structure to can receive the easy unstability of great lateral stress and cause the problem of incident among the solution correlation technique.

In a first aspect, the application provides a pre-buried support of steel arch bridge hunch seat, include

The landing rack comprises a support piece, a cross beam, an oblique beam, a connecting rod and a limiting rod, wherein the cross beam is welded and fixed on the support piece, two end faces of the connecting rod are welded and fixed on the support piece, one end of the oblique beam is welded and fixed on one end side of the cross beam, one end face of the limiting rod is welded and fixed on one end of the oblique beam far away from the cross beam, one side of the limiting rod is welded and fixed on the support piece, one end of the limiting rod is welded and fixed on the side of the connecting rod, and an adjusting piece is welded and fixed on the side of the limiting rod.

In an embodiment of the present invention, the supporting member includes six sets of supporting rods, the upper ends of the supporting rods are respectively welded and fixed to the lateral portions of the cross beam, the oblique beam and the limiting rod, and the two end surfaces of the connecting rod are respectively welded and fixed to the lateral portions of the supporting rods.

The utility model discloses an in one embodiment, be provided with the bracing on the rack that falls to the ground, the both ends of bracing respectively with the connecting rod the crossbeam the sloping with the lateral part welded fastening of bracing piece.

In an embodiment of the present invention, the distance between the adjacent supporting rods from left to right of the six groups of supporting rods is set to 1500mm, 1400mm, 1700mm, 1500mm and 1575mm respectively.

In an embodiment of the present invention, the limiting rod is set to 20a channel steel.

The utility model discloses an in the embodiment, the bracing piece sets up to two I-steel or the 20b I-steel that 20a channel-section steel welding formed.

The utility model discloses an in one embodiment, the regulating part sets up to the jack, the jack is provided with two, two pairs the jack welded fastening respectively is in the lateral part of gag lever post.

In an embodiment of the present invention, two pairs of limiting grooves are formed on one side of the oblique beam adjacent to the jack.

In a second aspect, the application still provides a steel arch bridge hunch seat buried structure in advance, including foretell support and pressure-bearing subassembly, the pressure-bearing subassembly includes two first bearing plates and second bearing plate, two the lateral part of first bearing plate is provided with the limiting plate, the lateral part of limiting plate with the one end of regulating part is contradicted and is connected, one side of second bearing plate with the crossbeam laminating is connected, two first bearing plate with the both ends of second bearing plate are inconsistent.

In the embodiment of the application, the pre-buried support for the arch center of the steel arch bridge is provided, when in use, the stability of the floor stand can be effectively improved by using the cross beam and the oblique beam and matching with the supporting rod, the oblique brace, the limiting rod and the connecting rod, and after the steel arch foot component is installed, the lateral stress applied to the oblique beam can be distributed to the supporting rod, the connecting rod, the oblique brace and the limiting rod, so that the instability of the floor stand after the steel arch foot component is installed can be effectively reduced, safety accidents caused by the instability of the floor stand can be effectively avoided, through the use of the jack, when the first bearing plate and the second bearing plate are placed on the cross beam and the oblique beam, through matching with the inverted chain, the jack is used for pushing the limiting plates to enable the two first bearing plates to be abutted against the second bearing plates, and through the matching of the limiting groove and the limiting plates, the adjusting position of the first bearing plates can be limited, the accuracy that can effectual improvement first bearing plate and second bearing plate mounted position, the installation effectiveness that can effectual improvement falls to the ground rack and pressure-bearing subassembly to through the supporting role of jack, can be when first bearing plate welds with the second bearing plate, first bearing plate easily rocks the accuracy of influence and second bearing plate welding position when avoiding the exclusive use chain fall, and influences the position that first bearing plate and second bearing plate welded on falling to the ground rack.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic view of a landing platform and a bearing assembly according to an embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 according to an embodiment of the present disclosure;

fig. 3 is a schematic top view of a first bearing plate provided according to an embodiment of the present application.

In the figure: 100. a landing rack; 110. a support member; 111. a support bar; 120. a cross beam; 130. an oblique beam; 131. a limiting groove; 140. a connecting rod; 150. a limiting rod; 160. an adjustment member; 161. a jack; 170. bracing; 200. a pressure-bearing assembly; 210. a first bearing plate; 211. a limiting plate; 220. a second bearing plate.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example 1

Referring to fig. 1-3, the present application provides a pre-buried bracket of a steel arch bridge arch center, including a floor stand 100, where the floor stand 100 includes a support member 110, a cross beam 120, an oblique beam 130, a connecting rod 140 and a limiting rod 150, the limiting rod 150 is a 20a channel steel, the cross beam 120 and the oblique beam 130 are both welded and fixed on the support member 110, two end surfaces of the connecting rod 140 are welded and fixed with the support member 110, one end of the oblique beam 130 is welded and fixed with one end of the cross beam 120, one sides of the two pairs of oblique beams 130 adjacent to a jack 161 are both provided with a limiting groove 131, the limiting groove 131 is used to cooperate with a limiting plate 211 to limit an adjustment range of a pressure-bearing assembly 200, one end surface of the limiting rod 150 is welded and fixed with one end of the oblique beam 130 away from the cross beam 120, one side of the limiting rod 150 is welded and fixed with the support member 110, one end of the limiting rod 150 is welded, adjusting part 160 sets up to jack 161, jack 161 is provided with two pairs, two pairs of jack 161 welded fastening respectively are at the lateral part of gag lever post 150, during the specific use, use through crossbeam 120 and sloping 130, and with bracing piece 111, bracing 170, gag lever post 150 and connecting rod 140 cooperation use, can effectual improvement fall to the ground the stability of rack 100, and can be behind the installation steel hunch foot component, distribute the lateral stress that sloping 130 received to bracing piece 111, connecting rod 140, on bracing 170 and the gag lever post 150, can effectively reduce the circumstances of falling to the ground rack 100 unstability behind the installation steel hunch foot component and take place, the effectual incident of avoiding taking place because of falling to the ground rack 100 unstability.

In this embodiment, the supporting member 110 includes six sets of supporting rods 111, the upper ends of the six sets of supporting rods 111 are respectively welded and fixed with the lateral portions of the cross beam 120, the oblique beam 130 and the limiting rod 150, the two end faces of the connecting rod 140 are respectively welded and fixed with the lateral portions of the six sets of supporting rods 111, the distances between the six sets of supporting rods 111 from left to right adjacent supporting rods 111 are respectively set to be 1500mm, 1400mm, 1700mm, 1500mm and 1575mm, and the supporting rods 111 are set to be two i-shaped steels or 20b i-shaped steels formed by welding 20a channel steels, so that the stability of the floor stand 100 can be effectively improved, and the safety of the floor stand 100.

In this embodiment, the floor stand 100 is provided with the inclined strut 170, two ends of the inclined strut 170 are respectively welded and fixed with the connecting rod 140, the cross beam 120, the inclined beam 130 and the side portion of the supporting rod 111, and by using the inclined strut 170, the stability of the floor stand 100 can be effectively improved, and the lateral stress of the floor stand 100 after the steel arch foot structure is installed can be distributed.

Referring to fig. 1, 2 and 3, an arch center pre-embedding structure of a steel arch bridge includes the bracket and the pressure-bearing assembly 200, the pressure-bearing assembly 200 includes two first pressure-bearing plates 210 and a second pressure-bearing plate 220, the side portions of the two first pressure-bearing plates 210 are provided with a limiting plate 211, the side portion of the limiting plate 211 is connected with one end of the adjusting member 160 in an abutting manner, one side of the second pressure-bearing plate 220 is connected with the cross beam 120 in an abutting manner, and the two ends of the two first pressure-bearing plates 210 are abutted with the two ends of the second pressure-bearing plate 220.

Specifically, the working principle of the pre-buried support of the arch seat of the steel arch bridge is as follows: when the floor stand 100 is used, the cross beam 120 and the oblique beam 130 are used and matched with the support rod 111, the oblique brace 170, the limiting rod 150 and the connecting rod 140, so that the stability of the floor stand 100 can be effectively improved, and after a steel arch foot component is installed, the lateral stress on the oblique beam 130 can be distributed to the support rod 111, the connecting rod 140, the oblique brace 170 and the limiting rod 150, so that the instability of the floor stand 100 after the steel arch foot component is installed can be effectively reduced, safety accidents caused by instability of the floor stand 100 can be effectively avoided, through the use of the jack 161, when the first bearing plate 210 and the second bearing plate 220 are placed on the cross beam 120 and the oblique beam 130, through the matching with the inverted chain, the jack 161 is used for pushing the limiting plate 211 to enable the two first bearing plates 210 to be abutted against the second bearing plates 220, and through the matching of the limiting groove 131 and the limiting plate 211, the adjusting position of the first bearing plate 210 can be limited, the accuracy that can effectual improvement first bearing plate 210 and second bearing plate 220 mounted position, can effectual improvement fall to the ground rack 100 and the installation effectiveness of pressure-bearing subassembly 200, and through jack 161's supporting role, can be when first bearing plate 210 welds with second bearing plate 220, first bearing plate 210 easily rocks the accuracy of influence and second bearing plate 220 welding position when avoiding the exclusive use chain fall, and the position of welding on falling to the ground rack 100 of first bearing plate 210 and second bearing plate 220 of influence.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a pre-buried support of steel arch bridge hunch seat which characterized in that includes:

2. The pre-buried bracket of the arch center of the steel arch bridge as claimed in claim 1, wherein the supporting member includes six sets of supporting rods, the upper ends of the six sets of supporting rods are respectively welded and fixed with the lateral parts of the cross beam, the oblique beam and the limiting rod, and the two end faces of the connecting rod are respectively welded and fixed with the lateral parts of the six sets of supporting rods.

3. The pre-buried support of steel arch bridge arch center of claim 2, wherein the landing platform is provided with a diagonal brace, and two ends of the diagonal brace are respectively welded and fixed with the connecting rod, the cross beam, the diagonal beam and the side part of the supporting rod.

4. The pre-buried bracket of the arch center of the steel arch bridge as claimed in claim 3, wherein the distance between the adjacent support rods from left to right of the six groups of support rods is set to 1500mm, 1400mm, 1700mm, 1500mm and 1575mm respectively.

5. The pre-embedded bracket for the arch support of the steel arch bridge as claimed in claim 1, wherein the limiting rod is a 20a channel steel.

6. The pre-buried bracket of the arch center of the steel arch bridge according to claim 4, wherein the supporting rod is formed by welding two 20a channel steels or 20b I-steels.

7. The pre-buried bracket of the arch center of the steel arch bridge as claimed in claim 1, wherein the adjusting member is provided with two jacks, and two pairs of the jacks are respectively welded and fixed on the side of the limiting rod.

8. The pre-buried bracket of the arch center of the steel arch bridge as claimed in claim 7, wherein the two pairs of oblique beams are provided with a limiting groove on one side adjacent to the jack.

9. A steel arch bridge abutment pre-buried structure, characterized by comprising the bracket of any one of claims 1 to 8; and the pressure-bearing assembly comprises two first pressure-bearing plates and a second pressure-bearing plate, two lateral parts of the first pressure-bearing plates are provided with limiting plates, lateral parts of the limiting plates are abutted to one ends of the adjusting pieces, one side of the second pressure-bearing plate is abutted to the cross beam, and the two first pressure-bearing plates are abutted to two ends of the second pressure-bearing plate.