CN114214969B - Width splicing structure and method of width splicing bridge - Google Patents
Width splicing structure and method of width splicing bridge Download PDFInfo
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- CN114214969B CN114214969B CN202111453018.3A CN202111453018A CN114214969B CN 114214969 B CN114214969 B CN 114214969B CN 202111453018 A CN202111453018 A CN 202111453018A CN 114214969 B CN114214969 B CN 114214969B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000853 adhesive Substances 0.000 claims description 11
- 230000001070 adhesive effect Effects 0.000 claims description 11
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 40
- 239000010959 steel Substances 0.000 description 40
- 238000010276 construction Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a width splicing structure and a width splicing method of a width splicing bridge, and relates to the technical field of bridges, wherein the width splicing structure comprises: the hoop assembly is used for being connected with an existing bent cap and comprises a hoop top plate, hoop webs and a fixing assembly, the two sides of the hoop top plate are vertically connected with the hoop webs, the hoop webs are parallel to each other, and a cavity formed by the hoop top plate and the hoop webs is used for being connected with the existing bent cap in a nested mode; and the support assembly is fixedly connected with the hoop web plate, and the top of the support assembly is provided with a support plane. Because the length of the hoop web plate can be set according to actual requirements, under the condition that the total height of the upper structure of the spliced wide bridge and the support system is limited, the value range of the beam height of the upper structure of the spliced wide bridge is larger, so that the spliced wide structure can be suitable for the upper structure of the spliced wide bridge with more types, and the spliced wide bridge is installed on the existing bent cap.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a width splicing structure and a width splicing method of a width splicing bridge.
Background
With the rapid development of cities, the functions and traffic capacity of some overpasses cannot meet the requirement of increasing traffic, and the functions and traffic capacity become daily congestion points of urban traffic and are urgently needed to be solved. On the premise that the existing bridges meet the automobile load requirement, the modification and utilization of the overpass bridges become a quick and proper method for avoiding large disassembly and large construction.
The most common among these is the widening of existing bridges. When the existing bridge pier to be spliced and wide is in a portal form and the existing bent cap of the portal occupies the position of the spliced and wide bridge, the difficulty of bridge splicing and wide is high, and the bridge splicing and wide bridge is a decisive factor for limiting the success of bridge splicing and wide. Because the bridge deck elevations of new and old bridges at the widening positions need to be connected in sequence, the upper structure of the newly-built widening bridge can collide with the existing bent cap of the existing bridge.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a width splicing structure of a width splicing bridge, and the installation of the width splicing bridge is realized on the existing bent cap.
The invention also provides a widening method of the widening structure with the widening bridge.
The widening structure of the widening bridge of the embodiment of the first aspect of the invention comprises: the hoop assembly is used for being connected with an existing bent cap and comprises a hoop top plate, hoop webs and a fixing assembly, the two sides of the hoop top plate are vertically connected with the hoop webs, the hoop webs are parallel to each other, and a cavity formed by the hoop top plate and the hoop webs is used for being connected with the existing bent cap in a nested mode; and the support assembly is fixedly connected with the hoop web plate, and the top of the support assembly is provided with a support plane.
In a further embodiment, the cuff assembly further comprises an anchor bolt, and the cuff web has a plurality of anchor bolt holes uniformly arranged thereon, the anchor bolt being matched with the anchor bolt holes.
In a further embodiment, the ferrule assembly further comprises a ferrule base plate for connecting the ferrule web.
In a further embodiment, the support assembly comprises a bracket, the bracket comprises a bracket top plate and a stiffening rib, the bracket top plate is vertically arranged outside the hoop web, the bracket top plate is parallel to the horizontal plane, and the stiffening rib is fixedly connected with the bracket top plate and the hoop web.
In a further embodiment, the longitudinal section of the stiffener presents a trapezoid shape.
The widening method of the widening bridge of the embodiment of the second aspect of the invention comprises the following steps:
Prefabricating the ferrule assembly and the support assembly;
polishing the existing bent cap until the structural surface of the existing bent cap is exposed, and then drilling anchor bolt holes in the existing bent cap according to the setting positions of the anchor bolts;
installing the cuff assembly onto the existing capping beam, so that the anchor holes on the cuff assembly correspond to the anchor holes on the existing capping beam;
filling steel-bonding structural adhesive in a gap between the hoop component and the existing bent cap;
Mounting a support system on the bracket top plate, and then mounting the upper structure of the width splicing bridge on the support system;
and casting a cast-in-situ leveling layer on the top plate of the hoop according to the elevation of the bridge deck of the spliced wide bridge.
In a further embodiment, the cuff web is parallel to the side of the existing capping beam and is maintained in a gap from the side of the existing capping beam when the cuff assembly is mounted to the capping beam.
In a further embodiment, the collar web is spaced 1cm from the side of the existing bent cap.
In a further embodiment, the length of the bracket top plate is determined according to the position of the support system, and a safety distance is reserved from the outermost side of the bracket top plate to the position of the support system.
The width splicing structure of the width splicing bridge has at least the following beneficial effects: the hoop assembly is arranged on the existing bent cap, the top surface of the hoop top plate is attached to the top surface of the existing bent cap, the hoop web plate is parallel to the side surface of the existing bent cap, then the hoop top plate, the hoop web plate and the existing bent cap are connected and fixed by the fixing assembly, and then steel-bonding structural adhesive is filled into a gap between the hoop web plate and the existing bent cap, so that the fixed connection of the hoop assembly and the existing bent cap is realized. Because the length of the hoop web plate can be set according to actual requirements, under the condition that the total height of the upper structure of the spliced wide bridge and the support system is limited, the value range of the beam height of the upper structure of the spliced wide bridge is larger, so that the spliced wide structure can be suitable for the upper structure of the spliced wide bridge with more types, and the spliced wide bridge is installed on the existing bent cap. The splicing structure has the advantages of simple manufacture, convenient and quick construction and convenient popularization, can realize industrialized manufacture, has high assembly degree and high construction speed, greatly reduces construction pollution, and has the remarkable advantages of being green, energy-saving and efficient.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is an elevation view of a tiled wide structure in accordance with an embodiment of the present invention;
FIG. 2 is a plan view of a tiled wide structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of section A-A of FIG. 1;
FIG. 4 is a schematic view of a widening structure according to an embodiment of the present invention.
Reference numerals:
Pier column 1, existing capping beam 22, widening bridge superstructure 33, cast-in-place leveling layer 44, roof 11, hoop web 12, anchor bolts 13, steel-bonded structural adhesive 14, support assembly 20, bracket roof 21, stiffening ribs 22, support system 40, anchor bolt holes 100.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The bridge widening is carried out on the existing bent cap, and the common solution is to newly cast a concrete bracket in a reinforcement planting mode to be connected with the existing bent cap, and then support the upper structure of the widening bridge by the bracket. The premise of adopting the technology is that the height of the existing bent cap is high enough, the upper structure of the spliced wide bridge, the support system and the concrete bracket can be sequentially arranged from top to bottom, but the height of the concrete bracket is usually higher, so that the height reserved for the upper structure of the spliced wide bridge is insufficient, the upper structure of the spliced wide bridge needs to select a steel structure beam with a shorter beam height, the engineering investment is increased, and even the scheme cannot be implemented due to the insufficient beam height.
The widening structure of the widening bridge according to the first aspect of the present invention includes a ferrule assembly, a support assembly 20, and a fixing assembly.
Specifically, the hoop assembly is used for being connected with the existing capping beam 2, the hoop assembly comprises a hoop top plate 11, hoop webs 12 and a fixing assembly, the two sides of the hoop top plate 11 are vertically connected with the hoop webs 12, the hoop webs 12 connected to the hoop top plate 11 are parallel to each other, a cavity surrounded by the hoop top plate 11 and the hoop webs 12 on the two sides of the hoop top plate 11 is used for being connected with the existing capping beam 2 in a nested manner, and the hoop top plate 11 and the hoop webs 12 are fixedly connected with the existing capping beam 2 through the fixing assembly; and the support assembly 20 is fixedly connected with the cuff web 12, and the top of the support assembly 20 is provided with a support plane.
During construction, the hoop assembly is installed on the existing bent cap 2, the hoop top plate 11 is attached to the top surface of the existing bent cap 2, the hoop web 12 is parallel to the side surface of the existing bent cap 2, a certain gap is kept between the hoop web 12 and the side surface of the existing bent cap 2, then the hoop top plate 11, the hoop web 12 and the existing bent cap 2 are fixedly connected by the fixing assembly, and then the steel-bonding structural adhesive 14 is filled into the gap between the hoop web 12 and the existing bent cap 2, so that the fixed connection of the hoop assembly and the existing bent cap 2 is realized. Under the condition that the overall height of the spliced wide bridge upper structure and the support system is limited, the length of the hoop web 12 can be set according to actual requirements, so that the value range of the beam height of the spliced wide bridge upper structure 3 is larger, and the spliced wide structure can be suitable for more types of upper structures and has stronger practicability. The splicing structure has the advantages of simple manufacture, convenient and quick construction and convenient popularization, realizes industrialized manufacture, has high assembly degree and high construction speed, and greatly reduces construction pollution.
Wherein the ferrule assembly and the support assembly 20 are both steel materials. In one embodiment, the components can be directly connected by fusion welding, and the connecting method has the characteristics of convenience and reliability. Further, the ferrule top plate 11 should extend a small distance to the outermost side of the ferrule web 12 to meet the weld width requirement at the junction of the ferrule web 12 and the ferrule top plate 11.
In one possible embodiment, the securing assembly includes an anchor bolt 13, with a plurality of anchor holes 100 uniformly disposed in the cuff top plate 11 and cuff web 12, the anchor bolt 13 mating with the anchor holes 100. Wherein the anchor holes 100 in the ferrule top plate 11 are arranged at a certain pitch to meet the construction requirements. The anchor holes 100 on the hoop web 12 should be positioned and spaced according to the structural stress calculation of the existing capping beam 2. At the same time, the anchor holes 100 should avoid the locations where the support assemblies 20 are connected to the ferrule web 12. In addition, the location of the anchor 13 is designed to meet the safety distance requirements with respect to the edges of the collar head plate 11, collar web 12 and existing roof rail 2. Further, the anchor bolt 13 is a high-strength anchor bolt 13 to improve the reliability of the connection of the anchor bolt 13. The hoop top plate 11 and the hoop web plate 12 are integrally connected with the existing bent cap 2, so that the group of high-strength anchor bolts 13 can synchronously and uniformly bear shearing force from the bracket, and the connection reliability of the bracket and the existing bent cap is greatly improved. The hooped roof 11 and the hooped web 12 are filled with steel-bonded structural adhesive through the uniformly arranged high-strength anchor bolts 13 and gaps between the hooped web 12 and the existing bent cap 2, so that the fixed connection with the existing bent cap 2 is realized, the stress on the bracket is uniformly transferred to the existing bent cap 2, and the structural stability of the existing bent cap 2 is ensured. Due to the overall stress characteristics of the hoop top plate 11 and the hoop web plate 12, the positions of the high-strength anchor bolts 13 can be properly adjusted, so that the high-strength anchor bolts 13 are prevented from being passively adjusted due to the influence of the positions of the structural steel bars of the existing bent cap 2, and the weakening of the high-strength anchor bolts 13 to the section of the existing bent cap 2 is effectively reduced. The spliced wide structure is simple in connection, clear in force transmission path and reliable in structural performance.
As an improvement of the above embodiment, the tensile force born by the ferrule web 12 corresponding to the support seat position area is relatively large, and the high-strength anchor bolts 13 on the ferrule web 12 penetrate through the existing capping beam 2 to perform opposite pulling, so that the ferrule webs 12 on both sides are stressed together, which not only can solve the problem that the anchoring depth of the single-side high-strength anchor bolts 13 is insufficient, but also can effectively avoid buckling damage of the ferrule web 12, and further ensure the reliability of the spliced wide structure.
In one possible embodiment, the ferrule assembly further includes a ferrule bottom plate for connecting the ferrule webs 12 on either side of the ferrule top plate. The hoop top plate 11, the hoop web plate 12 and the hoop bottom plate form an annular closed structure, the existing bent cap 2 is surrounded in the hoop assembly, and the integral stress characteristic of the hoop assembly is improved.
In one possible embodiment, the support assembly 20 includes a bracket, the bracket including a bracket top plate 21 and a stiffening rib 22, the bracket top plate 21 being disposed vertically outside the collar web 12, the bracket top plate 21 being parallel to the horizontal plane, the stiffening rib 22 being fixedly connected to the bracket top plate 21 and the collar web 12. The bracket top plate 21 serves as a mounting base of the support system 40, and then the split bridge superstructure 3 is placed on the support system 40 to effect mounting of the split bridge superstructure.
In one embodiment, penetration welding is adopted between the bracket top plate 21 and the hoop web 12, penetration welding is adopted between the stiffening ribs 22 and the bracket top plate 21 and between the stiffening ribs 22 and the hoop web 12, the stiffening ribs 22 below and near the support system 40 are arranged in an encrypted manner so as to meet the stress requirement, and the stiffening ribs 22 at the other positions are arranged according to the construction requirement.
In one possible embodiment, the longitudinal section of the stiffener 22 presents a trapezoid shape. The cross section of the bracket top plate 21 is rectangular, and the bracket top plate 21 is horizontally arranged and vertically connected to the outer side of the hoop web 12; the longitudinal section of the stiffening rib 22 is a trapezoid section and is positioned below the bracket top plate 21, and the stiffening rib 22 is vertically arranged and is perpendicular to the bracket top plate 21 and the hoop web 12.
The widening method of the widening bridge of the embodiment of the second aspect of the invention comprises the following steps:
a preformed cuff assembly and support assembly 20;
Polishing the existing bent cap 2 until the structural surface of the existing bent cap 2 is exposed, and then drilling anchor bolt holes 100 in the existing bent cap 2 according to the arrangement positions of the anchor bolts 13;
mounting the ferrule assembly to the existing capping beam 2 such that the anchor holes 100 on the ferrule assembly correspond to the anchor holes 100 on the existing capping beam 2;
filling steel-bonding structural adhesive 14 in the gap between the hoop component and the existing bent cap 2;
Mounting the abutment system 40 on the bracket top plate 21, and then mounting the split bridge superstructure 3 on the abutment system 40;
and casting the cast-in-situ leveling layer 4 on the hooped roof 11 according to the bridge deck elevation of the spliced wide bridge.
The method comprises the steps of prefabricating a hoop assembly and a supporting assembly 20 in a factory, enabling the assemblies to be firmly connected to form a whole, reserving anchor bolt holes 100 on a hoop web 12 and a hoop top plate 11 according to the setting positions of anchor bolts 13, and conveying to a construction site after manufacturing is completed; the cast-in-situ leveling layer 4 is arranged on the hoop top plate 11 and is used for adjusting the elevation of the bridge deck of the spliced wide bridge so as to lead the bridge deck of the spliced wide bridge to be in line with the existing bridge.
In one possible embodiment, the cuff assembly is mounted to the end cap such that the cuff web 12 is parallel to the side of the existing end cap 2 and such that the cuff web 12 is spaced from the side of the existing end cap 2. This gap is used to fill the adhesive steel structural glue 14 to improve the reliability of the connection of the ferrule assembly to the existing bent cap 2.
Further, the ferrule web 12 is spaced 1cm from the side of the existing capping beam 2. The spacing between the hoop web 12 and the side surface of the existing capping beam 2 is adjusted to be 1cm, so that sufficient space is reserved for filling the steel-bonding structural adhesive 14, and the reliability of the connection between the hoop assembly and the existing capping beam 2 is ensured. Meanwhile, the spacing is limited to 1cm, so that the problem that the gap between the hoop web 12 and the side surface of the existing capping beam 2 is overlarge is avoided, and the hoop web 12 has a larger movable space, so that the connection reliability of the splicing wide structure is reduced.
In one possible embodiment, the length of the bracket top plate 21 is determined according to the position of the support system 40, and a safe distance is reserved from the outermost side of the bracket top plate 21 to the position of the support system 40 to prevent the girder of the bridge superstructure 3 from falling.
The widening structure and the widening method according to the embodiments of the present invention are described below in a specific embodiment. It should be understood that this embodiment is illustrative only and is not limiting of embodiments of the invention.
Referring to fig. 1 to 4, the widening structure of the widening bridge includes a steel ferrule assembly and a steel corbel. The cross section of the steel sleeve hoop component is in a pi shape or a ≡shape, the steel sleeve hoop component comprises two steel sleeve hoop webs 12 and a steel sleeve hoop top plate 11, and the steel sleeve hoop webs 12 are welded with the steel sleeve hoop top plate 11. According to the setting position of the high-strength anchor bolts 13, anchor bolt holes 100 are reserved on the steel sleeve hoop web 12 and the steel sleeve hoop top plate 11, the steel sleeve hoop assembly is connected with the existing bent cap 2 by adopting the high-strength anchor bolts 13 and the steel-bonding structural adhesive 14, and the gap between the steel sleeve hoop assembly and the existing bent cap 2 is recommended to be 1cm. The steel corbel sets up on steel sleeve hoop web 12, adopts welded connection between with steel sleeve hoop web 12, and the steel corbel includes steel stiffening rib 22 and steel corbel roof 21, adopts welded connection between steel stiffening rib 22 and the steel corbel roof 21, and the length of steel corbel roof 21 is according to the position determination of support system 40 to consider stretching out one section safe distance of outside support, the width of steel corbel roof 21 satisfies the width demand of piecing together wide bridge superstructure 3, in order to prevent to piece together wide bridge superstructure 3 and fall the roof beam. A support system 40 is provided on the steel corbel top plate 21 for supporting the bridge superstructure 3. The cast-in-situ leveling layer 4 is arranged on the steel sleeve hoop top plate 11 and is used for adjusting the bridge deck elevation of the spliced wide bridge to be consistent with the existing bridge.
During construction, firstly prefabricating the steel sleeve hoop assembly and the steel corbels in a factory, firmly welding all steel plates to form a whole, reserving anchor bolt holes 100 on the steel sleeve hoop web 12 and the steel sleeve hoop top plate 11 according to the setting positions of high-strength anchor bolts 13, and transporting to the site; polishing the existing bent cap 2 until the structural surface of the existing bent cap 2 is exposed, and then drilling anchor bolt holes 100 on the existing bent cap 2 according to the setting positions and depths of the high-strength anchor bolts 13; hoisting the steel sleeve hoop assembly, enabling the anchor bolt holes 100 in the steel sleeve hoop assembly to correspond to the anchor bolt holes 100 on the existing bent cap 2 one by one, then pouring chemical glue into the anchor bolt holes 100, and installing and tightening the high-strength anchor bolts 13; sealing the outer side gap between the steel sleeve hoop component and the existing bent cap 2, and filling the gap between the steel sleeve hoop component and the existing bent cap 2 with steel structural adhesive 14 by adopting a grouting method, so that the steel sleeve hoop and the existing bent cap 2 are firmly connected; a support system 40 is arranged on the steel bracket top plate 21, and a widening bridge superstructure 3 is placed on the support system 40; and casting a cast-in-situ leveling layer 4 on the steel sleeve hoop top plate 11 according to the bridge deck elevation of the spliced wide bridge, and connecting the cast-in-situ leveling layer 4 with the cast-in-situ layer of the upper structure 3 of the spliced wide bridge into a whole.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (7)
1. A widening structure of a widening bridge, comprising:
The hoop assembly is used for being connected with an existing bent cap, the hoop assembly comprises a hoop top plate, hoop webs and a fixing assembly, the two sides of the hoop top plate are connected with the hoop webs, the hoop webs are parallel to each other, a cavity formed by the hoop top plate and the hoop webs is used for being connected with the existing bent cap in a nested mode, and the hoop top plate and the hoop webs are fixedly connected with the existing bent cap through the fixing assembly; the fixing assembly comprises an anchor bolt, a plurality of anchor bolt holes are uniformly arranged on the cuff top plate and the cuff web plate, and the anchor bolt is matched with the anchor bolt holes; and
The support assembly is fixedly connected with the hoop web plate, and the top of the support assembly is provided with a support plane; the support assembly comprises a bracket, the bracket comprises a bracket top plate and stiffening ribs, the bracket top plate is vertically arranged on the outer side of the hoop web, the bracket top plate is parallel to the horizontal plane, and the stiffening ribs are fixedly connected with the bracket top plate and the hoop web.
2. The widening structure of the widening bridge as recited in claim 1, wherein the cuff assembly further comprises a cuff base plate for connecting the cuff webs.
3. The widening structure of the widening bridge as recited in claim 1, wherein the longitudinal section of the stiffener is in a trapezoid shape.
4. A widening method of a widening bridge, characterized by adopting the widening structure of the widening bridge as claimed in any one of claims 1 to 3, comprising the steps of:
Prefabricating the ferrule assembly and the support assembly;
polishing the existing bent cap until the structural surface of the existing bent cap is exposed, and then drilling anchor bolt holes in the existing bent cap according to the setting positions of the anchor bolts;
installing the cuff assembly onto the existing capping beam, so that the anchor holes on the cuff assembly correspond to the anchor holes on the existing capping beam;
filling steel-bonding structural adhesive in a gap between the hoop component and the existing bent cap;
Mounting a support system on the bracket top plate, and then mounting the upper structure of the width splicing bridge on the support system;
and casting a cast-in-situ leveling layer on the top plate of the hoop according to the elevation of the bridge deck of the spliced wide bridge.
5. The method of widening a bridge as recited in claim 4, wherein the ferrule web is parallel to and spaced from a side of the existing cap beam when the ferrule assembly is mounted to the cap beam.
6. The method of widening a bridge as recited in claim 5, wherein the collar web is spaced 1cm from the side of the existing cap beam.
7. The method of claim 4, wherein the length of the bracket top plate is determined according to the position of the support system, and a safe distance is reserved from the outermost side of the bracket top plate to the position of the support system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453018.3A CN114214969B (en) | 2021-12-01 | 2021-12-01 | Width splicing structure and method of width splicing bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111453018.3A CN114214969B (en) | 2021-12-01 | 2021-12-01 | Width splicing structure and method of width splicing bridge |
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| Publication Number | Publication Date |
|---|---|
| CN114214969A CN114214969A (en) | 2022-03-22 |
| CN114214969B true CN114214969B (en) | 2024-07-30 |
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| CN202111453018.3A Active CN114214969B (en) | 2021-12-01 | 2021-12-01 | Width splicing structure and method of width splicing bridge |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485278A (en) * | 2019-08-29 | 2019-11-22 | 上海市政工程设计研究总院（集团）有限公司 | A kind of half stealth of falling T bent cap construction |
| CN210262769U (en) * | 2019-07-17 | 2020-04-07 | 山西省交通规划勘察设计院有限公司 | A kind of hollow slab bridge reinforcement and widening structure |
| CN112575696A (en) * | 2020-12-16 | 2021-03-30 | 无锡市政设计研究院有限公司 | Anti-overturning reinforcing structure applied to single-column pier bridge and installation method |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4838232B2 (en) * | 2007-12-28 | 2011-12-14 | 株式会社Ｉｈｉインフラシステム | Widening girder joining structure and method |
| KR100949601B1 (en) * | 2008-03-13 | 2010-03-25 | 구일건설(주) | Method to expand existing bridge without going |
| JP4310444B1 (en) * | 2008-11-17 | 2009-08-12 | ショーボンド建設株式会社 | Width expansion material for road bridges |
| CN101613997B (en) * | 2009-07-21 | 2011-02-16 | 清华大学 | Method for widening steel-concrete combination |
| CN103452053B (en) * | 2013-08-20 | 2016-06-08 | 中铁第四勘察设计院集团有限公司 | The antidumping bracing means of Single column pier bridge |
| CN105672145B (en) * | 2016-03-18 | 2017-10-13 | 大连理工大学 | A kind of pier top sets up the structure that steel lid beam widens bridge |
| JP6939731B2 (en) * | 2018-07-24 | 2021-09-22 | Ｊｆｅエンジニアリング株式会社 | Widening bracket structure and floor slab widening structure |
| CN112323654A (en) * | 2020-11-17 | 2021-02-05 | 上海市基础工程集团有限公司 | Bridge full-prefabrication widening method |
| CN112458877B (en) * | 2020-11-25 | 2025-04-01 | 广州市市政工程设计研究总院有限公司 | An assembled steel-concrete composite rigid frame bridge and construction method thereof |
| CN112411352A (en) * | 2020-11-25 | 2021-02-26 | 广州市市政工程设计研究总院有限公司 | Assembled steel-concrete combined rigid frame bridge and construction method thereof |
| CN112502025B (en) * | 2020-11-25 | 2025-02-18 | 广州市市政工程设计研究总院有限公司 | Segment bolted rigid frame bridge and construction method thereof |
| CN214362806U (en) * | 2020-12-05 | 2021-10-08 | 甘肃省交通规划勘察设计院股份有限公司 | Connecting device for splicing width of new bridge and old bridge |
| CN112502056A (en) * | 2020-12-10 | 2021-03-16 | 谢绍良 | Pier top is add steel bent cap and is widened structure of bridge |
-
2021
- 2021-12-01 CN CN202111453018.3A patent/CN114214969B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210262769U (en) * | 2019-07-17 | 2020-04-07 | 山西省交通规划勘察设计院有限公司 | A kind of hollow slab bridge reinforcement and widening structure |
| CN110485278A (en) * | 2019-08-29 | 2019-11-22 | 上海市政工程设计研究总院（集团）有限公司 | A kind of half stealth of falling T bent cap construction |
| CN112575696A (en) * | 2020-12-16 | 2021-03-30 | 无锡市政设计研究院有限公司 | Anti-overturning reinforcing structure applied to single-column pier bridge and installation method |
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