CN219032902U - Suspender structure of underpinning type tied-arch bridge - Google Patents
Suspender structure of underpinning type tied-arch bridge Download PDFInfo
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- CN219032902U CN219032902U CN202223205880.5U CN202223205880U CN219032902U CN 219032902 U CN219032902 U CN 219032902U CN 202223205880 U CN202223205880 U CN 202223205880U CN 219032902 U CN219032902 U CN 219032902U
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- arch rib
- pull rod
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- embedded pull
- rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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Abstract
The utility model discloses a suspender structure of a lower-bearing type tied-arch bridge, which comprises an arch rib connecting piece, a tie beam connecting piece, a suspender and a waterproof piece, wherein the arch rib connecting piece comprises an arch rib embedded pull rod arranged on an arch rib, and a fixing piece fixed with the arch rib embedded pull rod is arranged in the arch rib; the tie beam connecting piece comprises a beam body embedded pull rod arranged on the beam body; the suspender comprises a guy cable body and steel sleeves arranged at the upper end and the lower end of the guy cable body, and waterproof pieces are arranged at the joint of the arch rib embedded pull rod and the steel sleeve and between the steel sleeve and the beam body embedded pull rod. According to the suspender structure of the lower-bearing type tied-arch bridge, water is prevented from entering the inside of the arch rib embedded pull rod and the beam body embedded pull rod through the upper waterproof structure and the lower waterproof structure, and the joint of the beam body embedded pull rod and the inhaul cable body and the joint of the arch rib embedded pull rod and the inhaul cable body are effectively prevented from being corroded by immersion.
Description
Technical Field
The utility model relates to the technical field of tied-arch bridges, in particular to a suspender structure of a lower-bearing tied-arch bridge.
Background
The tied arch bridge is widely applied to the bridge construction field due to the characteristics of large span, attractive appearance and the like. Tied arch bridges are required to be used to booms, ribs and bridges, wherein the booms are the stressed members of the bridge arch bridge, and the load of the bridge deck is required to be transferred to the ribs by the booms, so that the reliability, durability and replaceability of the booms are related to the structural safety and normal use of the bridge.
The booms commonly used for tied-arch bridges have two basic forms, flexible booms and rigid booms. The flexible suspender is a finished rope made of high-strength steel wire bundles or steel strands, the rigid suspender is a prestress component, the tensile stress generated by the suspender under the load is overcome by applying the prestress, and water can be frequently fed into the contact part of the suspender, the arch rib and the bridge in the use of the suspender, so that the suspender and the anchor head can be corroded by soaking water, and the service life of the suspender is greatly reduced.
Disclosure of Invention
The utility model aims to provide a suspender structure of a lower-bearing type tied-arch bridge, which aims to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
a boom structure for an underhung tied arch bridge, comprising:
the arch rib connecting piece is arranged on the arch rib and comprises an arch rib embedded pull rod arranged on the arch rib, and a fixing piece fixed with the arch rib embedded pull rod is arranged in the arch rib;
the tie beam connecting piece is arranged on the tie beam and comprises a beam body embedded pull rod arranged on the beam body;
the hanging rod comprises a guy rope body and steel sleeves arranged at the upper end and the lower end of the guy rope body, the upper ends of the steel sleeves and the guy rope body are connected with the arch rib embedded pull rod, and the lower ends of the steel sleeves and the guy rope body are connected with the beam body embedded pull rod;
waterproof piece, the junction of pre-buried pull rod of arch rib and steel sleeve pipe with be provided with between the pre-buried pull rod of roof beam body waterproof piece.
The boom structure comprises a plurality of booms, and the booms are sequentially arranged at intervals along the length direction of the tie beam.
The boom structure comprises a middle boom and side booms arranged on two sides of the middle boom, wherein the number of wire rope strands in the inhaul cable body of the middle boom is smaller than that of wire rope strands in the inhaul cable body of the side booms.
The hanger rod structure comprises a fixing web plate arranged in the arch rib, wherein an arch rib locking piece is arranged on the fixing web plate, and the arch rib locking piece is fixedly connected with the inhaul cable body.
The suspender structure further comprises a plurality of wind braces arranged between the two arch ribs, and the wind braces are sequentially arranged along the circumferential direction of the arch ribs.
The hanger rod structure comprises a hanger rod, wherein the hanger rod is arranged on the outer side of the hanger rod, the hanger rod is arranged on the inner side of the hanger rod, the hanger rod is arranged on the outer side of the hanger rod, the hanger rod is connected with the hanger rod, and the hanger rod is arranged on the outer side of the hanger rod.
According to the suspender structure, the top plate, the bottom plate and the web plate are respectively internally provided with the reinforced straight bars, and the reinforced straight bars are fixedly connected with the partition plate.
The suspender structure comprises an upper waterproof cover and a lower waterproof cover, wherein the upper waterproof cover and the lower waterproof cover are hollow round table-shaped cover bodies, an upper connecting part is arranged at the small round end of each cover body, and a lower connecting part is arranged at the big round end of each cover body.
According to the suspender structure, the upper connecting part of the upper waterproof cover is connected with the arch rib embedded pull rod, and the lower connecting part of the upper waterproof cover is connected with the upper end of the steel sleeve.
The suspender structure is characterized in that the upper connecting part of the lower waterproof cover is connected with the lower end of the steel sleeve, and the lower connecting part of the upper waterproof cover is connected with the beam body embedded pull rod.
In the technical scheme, the utility model provides a suspender structure of a lower-bearing type tie-bar arch bridge, which comprises arch rib connecting pieces, tie beam connecting pieces, suspenders and waterproof pieces, wherein the arch rib connecting pieces are arranged on arch ribs, the arch rib connecting pieces comprise arch rib embedded pull rods arranged on the arch ribs, the tie beam connecting pieces comprise beam embedded pull rods arranged on the beam bodies, the suspenders comprise steel sleeves and cable bodies positioned in the steel sleeves, the upper ends and the lower ends of the cable bodies are respectively connected with the arch rib embedded pull rods and the beam embedded pull rods, after the cable bodies are fixedly connected, the steel sleeves, the waterproof pieces and the arch rib embedded pull rods form an upper waterproof structure, the steel sleeves, the waterproof pieces and the beam embedded pull rods form a lower waterproof structure, and water is prevented from entering the inside of the arch rib pull rods and the beam embedded pull rods through the upper waterproof structure and the lower waterproof structure, so that the junction of the beam embedded pull rods and the cable bodies and the junction of the arch rib embedded pull rods and the cable bodies are effectively prevented from being corroded by immersion.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic illustration of a boom structure for an underhung tied arch bridge according to an embodiment of the present utility model;
FIG. 2 is a schematic illustration of the installation of a boom according to an embodiment of the present utility model;
fig. 3 is a schematic diagram of an internal structure of a box rod according to an embodiment of the present utility model.
Reference numerals illustrate:
1. arch ribs; 1.1, rib connectors; 1.2, embedding tie rods in arch ribs;
2. tie beam connectors; 2.1, embedding tie rods in the beam body;
3. a boom; 3.1, a steel sleeve; 3.2, a inhaul cable body;
4. a waterproof member; 4.1, a cover body;
5. a box-shaped rod piece; 5.1, a bottom plate; 5.2, a web plate; 5.3, adding a bar; 5.4, a separator.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-3, an embodiment of the present utility model provides a boom structure of a lower-bearing tied arch bridge, which includes a rib connecting piece 1.1, a tie beam connecting piece 2, a boom 3 and a waterproof piece 4, wherein the rib connecting piece 1.1 is arranged on the rib 1, the rib connecting piece 1.1 includes a rib pre-buried pull rod 1.2 arranged on the rib 1, and a fixing piece fixed with the rib pre-buried pull rod 1.2 is arranged inside the rib 1; the tie beam connecting piece 2 is arranged on the tie beam, and the tie beam connecting piece 2 comprises a beam body embedded pull rod 2.1 arranged on the beam body; the suspender 3 comprises a guy rope body 3.2 and steel sleeves 3.1 arranged at the upper end and the lower end of the guy rope body 3.2, wherein the upper ends of the steel sleeves 3.1 and the guy rope body 3.2 are connected with arch rib embedded pull rods 1.2, the lower ends of the steel sleeves 3.1 and the guy rope body 3.2 are connected with beam body embedded pull rods 2.1, and waterproof pieces 4 are arranged at the joints of the arch rib embedded pull rods 1.2 and the steel sleeves 3.1 and between the steel sleeves 3.1 and the beam body embedded pull rods 2.1.
Specifically, the main bridge adopts a tied arch bridge, the vertical face of the main bridge is positioned on a herringbone slope, the central line of the bridge span is positioned at the vertex of a circular curve of a longitudinal slope of a road, the main bridge is symmetrical along the central line of the bridge span, the theoretical line of a tie beam is a circular curve, the bridge deck system of a cross section is two-way transverse slope, the bottom of the bridge is horizontal and symmetrical along the central line of the road, the connecting line of arch feet is a horizontal line, the theoretical line of arch ribs 1 is a quadratic parabola, the number of the arch ribs 1 is two, the thicknesses of a top plate, a bottom plate and a web plate of the arch ribs are set according to requirements, and the stiffening plate is a plate type.
In this embodiment, the arch rib connecting piece 1.1 is disposed on the arch rib 1, the arch rib connecting piece 1.1 has a plurality of, a plurality of arch rib connecting pieces 1.1 are disposed along the circumference of the arch rib 1 at intervals in turn, the arch rib connecting piece 1.1 includes an arch rib embedded pull rod 1.2, a part of the arch rib embedded pull rod 1.2 is fixedly connected with the arch rib 1, a part of the arch rib embedded pull rod 1.2 extends out from the arch rib 1 to form a connecting section, the arch rib connecting piece 1.1 can also include structures such as an arch rib spiral rib, an arch rib locking piece, an arch rib vibration damper, etc., which are commonly used in the prior art, and are not repeated, the fixing piece includes an embedded top plate and an embedded side plate, the arch rib embedded pull rod 1.2 penetrates through the upper surface and the lower surface of the arch rib 1 and is fixedly connected with the arch rib 1, and the embedded top plate and the embedded side plate and the arch rib embedded pull rod 1.2 are fixedly connected.
In this embodiment, the tie beam connecting piece 2 on the tie beam corresponds to the arch rib connecting piece 1.1, the tie beam connecting piece 2 includes a beam body embedded pull rod 2.1 disposed on the beam body, the beam body embedded pull rod 2.1 is at least partially located in the tie beam and fixedly connected with the tie beam, preferably, the beam body embedded pull rod 2.1 penetrates through the upper surface and the lower surface of the tie beam to achieve fixation, a part of the beam body embedded pull rod 2.1 extends out of the tie beam to form an extending connecting section, the tie beam connecting piece 2 further includes other structures, such as an embedded fixing structure for achieving the fixed connection of the beam body embedded pull rod 2.1 and the beam body, a tie beam locking piece, a tie beam damping body, a tie beam anchor cavity and the like, which are not repeated, the arch rib embedded pull rod 1.2 is sleeved at one end of the cable body 3.2, the rib embedded pull rod 1.2 and the cable body 3.2 are fixedly connected through the fixing piece and the arch rib 1 locking piece, and the beam body embedded pull rod 2.1 is sleeved at the other end of the cable body 3.2, and the cable body 3.2 is fixedly connected through the beam body embedded pull rod 2.
In the embodiment, the upper end and the lower end of the cable body 3.2 are respectively provided with a steel sleeve 3.1, the steel sleeve 3.1 is sleeved and fixed on the cable body 3.2, the upper connecting section of the cable body 3.2 is connected with an arch rib embedded pull rod 1.2, the lower connecting section of the cable body 3.2 is connected with a beam body embedded pull rod 2.1, the steel sleeve 3.1 is fixedly sleeved on the upper connecting section and the lower connecting section of the cable body 3.2, the length of the steel sleeve 3.1 is far less than the length of the cable body 3.2, after the cable body 3.2 is fixedly connected with the arch rib embedded pull rod 1.2 and the beam body embedded pull rod 2.1, the steel sleeve 3.1 can be connected with the arch rib embedded pull rod 1.2 and the beam body embedded pull rod 2.1 in a welding mode, a structure can be further arranged between the steel sleeve 3.1 and the arch rib embedded pull rod 1.2 and the beam body embedded pull rod 1.1, if flange connection is carried out, then the fixed connection between the guy rope body 3.2 and the steel sleeve 3.1 is carried out, a waterproof structure is arranged between the guy rope body 3.2 and the steel sleeve 3.1, foaming agent is filled between the guy rope body 3.2 and the steel sleeve 3.1, the foaming agent is injected after the guy rope body 3.2 is stretched, the functions of blocking water and preventing the guy rope body 3.2 from vibrating under the action of live load are achieved, meanwhile, waterproof pieces 4 are arranged at the connection positions of the arch rib embedded pull rod 1.2 and the steel sleeve 3.1 and the connection positions of the steel sleeve 3.1 and the beam body embedded pull rod 2.1, the waterproof structure is formed through the steel sleeve 3.1 and the waterproof pieces 4, so that water is prevented from entering the arch rib embedded pull rod 1.2 and the beam body embedded pull rod 2.1, and optionally, the waterproof pieces 4 are also arranged at one ends of the steel sleeve 3.1 far away from the arch rib embedded pull rod 1.2 and the beam body embedded pull rod 2.1, so as to realize the waterproof of the joint of the steel sleeve 3.1 and the inhaul cable body 3.2.
The embodiment of the utility model provides a suspender structure of a downward-bearing type tie-bar arch bridge, which comprises arch rib connecting pieces 1.1, a tie beam connecting piece 2, a suspender 3 and a waterproof piece 4, wherein the arch rib connecting pieces 1.1 are arranged on the arch ribs 1, the arch rib connecting pieces 1.1 comprise arch rib embedded pull rods 1.2 arranged on the arch ribs 1, the tie beam connecting piece 2 comprises beam embedded pull rods 2.1 arranged on a beam body, the suspender 3 comprises steel sleeves 3.1 and a cable rope body 3.2 positioned in the steel sleeves 3.1, the upper end and the lower end of the cable rope body 3.2 are respectively connected with the arch rib embedded pull rods 1.2 and the beam body embedded pull rods 2.1, after the cable rope body 3.2 is fixedly connected, the steel sleeves 3.1, the waterproof piece 4 and the arch rib embedded pull rods 1.2 form an upper waterproof structure, the steel sleeves 3.1, the waterproof piece 4 and the beam body embedded pull rods 2.1 form a lower waterproof structure, water is prevented from entering the arch rib 1.2 and the beam body embedded pull rods 2.1 through the upper embedded waterproof structure and the lower waterproof structure, and the cable rope body 3.2 is prevented from being corroded and the cable rope body 3.2 and the cable rope body 2 is connected with the embedded in the beam body embedded pull rods 2.1.
In this embodiment, preferably, the plurality of hanging rods 3 are arranged at intervals in the length direction of the tie beam, the hanging rods 3 comprise a middle hanging rod 3 and side hanging rods 3 arranged at two sides of the middle hanging rod 3, and the number of steel wire strands in the inhaul cable bodies 3.2 of the middle hanging rod 3 is smaller than that of steel wire strands in the inhaul cable bodies 3.2 of the side hanging rod 3; the plurality of guy cable bodies 3.2 can be all arranged along the vertical direction, can also be arranged in a group of alternately, and the wire rope in the guy cable body 3.2 of the middle suspender 3 adopts 27 strands of phi 15.2 epoxy steel strands, and the guy cable body 3.2 of the side suspender 3 adopts 31 strands of phi 15.2 epoxy steel strands.
In this embodiment, preferably, the fixing member further includes a fixing web 5.2 disposed inside the arch rib 1, and an arch rib locking member is disposed on the fixing web 5.2, and the arch rib locking member is fixedly connected with the cable body 3.2; the diaphragm 5.4 in the arch rib 1 is divided into a general diaphragm, a suspender diaphragm, a wind-supporting diaphragm and a semicircular diaphragm, wherein the wind-supporting diaphragm and the suspender diaphragm adopt solid diaphragms with the thickness of a frame type diaphragm.
In this embodiment, preferably, the air brace further comprises an air brace (not shown in the figure) disposed between the two arch ribs 1, the air brace is connected with the fixed web 5.2, a plurality of air braces are sequentially disposed along the circumferential direction of the arch ribs 1, the arch ribs 1 and the air brace are made of box-shaped rod pieces 5, the box-shaped rod pieces 5 comprise a top plate (not shown in the figure), a bottom plate 5.1 and a square rod body formed by combining the web 5.2, a plurality of partition plates 5.4 are disposed inside the square rod body along the length direction of the square rod body, and reinforced straight bars 5.3 are disposed in the top plate, the bottom plate 5.1 and the web 5.2, and the reinforced straight bars 5.3 are fixedly connected with the partition plates 5.4; before assembling, the box-type rod piece 5 is firstly manufactured by a plate unit, the steel plate is firstly subjected to work such as shot blasting and rust removal on a plate unit pretreatment line, workshop primer spraying and the like, stiffening rib installation, welding and correction are performed after the work is finished, and after the plate unit is manufactured and inspected to be qualified, beam section assembling work is performed, wherein the box-type rod piece 5 assembling process comprises the following steps: (1) And positioning a lower flange plate on the manufacturing jig frame, and drawing positioning lines of the battens, the partition plates 5.4 and the web plates 5.2. And installing a reinforced straight bar 5.3, and adopting intermittent welding fixation. And symmetrically welding to manufacture the plate unit. (2) And (3) comparing the positioning lines of the partition plates 5.4 on the fixed plate to position the partition plates 5.4, checking the verticality of the diaphragm plates 5.4 and the lower unit by adopting a hanging wire method, and temporarily supporting and fixing after the diaphragm plates are qualified. (3) The web 5.2 is arranged by contrasting with the positioning line, so that the contact part of the web 5.2 and the partition plate 5.4 is closely adhered, and spot welding is performed after the web is qualified. (4) The upper flange plate (top plate) is positioned in alignment, an oil cylinder at the upper part of the assembly machine is pressed down, so that the upper flange plate (top plate) is closely attached to the diaphragm plate 5.4, and spot welding is performed after the upper flange plate (top plate) is qualified.
In this embodiment, preferably, the waterproof piece 4 includes an upper waterproof cover and a lower waterproof cover, the upper waterproof cover and the lower waterproof cover are hollow truncated cone-shaped cover bodies 4.1, the small round end of the cover body 4.1 is provided with an upper connecting portion, and the big round end of the cover body 4.1 is provided with a lower connecting portion; the upper connecting part of the upper waterproof cover is connected with the arch rib embedded pull rod 1.2, and the lower connecting part of the upper waterproof cover is connected with the upper end of the steel sleeve 3.1; the upper connecting portion of the lower waterproof cover is connected with the lower end of the steel sleeve 3.1, the lower connecting portion of the upper waterproof cover is connected with the beam body embedded pull rod 2.1, the lower end of the steel sleeve 3.1 is provided with a diversion trench, the diversion trench is correspondingly arranged with the diversion plane of the lower waterproof cover, and the diversion trench is connected with the diversion plane to form a diversion structure for diversion of water.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. A boom structure for an underhung tied arch bridge, comprising:
the arch rib connecting piece is arranged on the arch rib and comprises an arch rib embedded pull rod arranged on the arch rib, and a fixing piece fixed with the arch rib embedded pull rod is arranged in the arch rib;
the tie beam connecting piece is arranged on the tie beam and comprises a beam body embedded pull rod arranged on the beam body;
the hanging rod comprises a guy rope body and steel sleeves arranged at the upper end and the lower end of the guy rope body, the upper ends of the steel sleeves and the guy rope body are connected with the arch rib embedded pull rod, and the lower ends of the steel sleeves and the guy rope body are connected with the beam body embedded pull rod;
waterproof piece, the junction of pre-buried pull rod of arch rib and steel sleeve pipe with be provided with between the pre-buried pull rod of roof beam body waterproof piece.
2. The boom structure according to claim 1, wherein a plurality of the booms are provided, and a plurality of the booms are arranged at intervals in sequence along a longitudinal direction of the tie beam.
3. The boom structure of claim 2, wherein the boom includes a middle boom and side booms disposed on both sides of the middle boom, the number of wire rope strands in the cable body of the middle boom being smaller than the number of wire rope strands in the cable body of the side boom.
4. The boom structure of claim 1, wherein the securing member comprises a securing web disposed within the arch rib, the securing web being provided with an arch rib securing member, the arch rib securing member being fixedly coupled to the guy cable body.
5. The boom structure of claim 4, further comprising a plurality of wind braces disposed between two of said ribs, said wind braces being disposed in sequence along a circumference of said ribs.
6. The boom structure of claim 5, wherein the rib and the wind brace are each made of a box-shaped rod member, the box-shaped rod member comprising a square rod body formed by combining a top plate, a bottom plate and a web plate, and a plurality of partitions are provided inside the square rod body along a length direction thereof.
7. The boom structure of claim 6, wherein the top, bottom and web plates are each provided with a stiffening bar, the stiffening bar being fixedly connected to the spacer.
8. The boom structure according to claim 1, wherein the waterproof member includes an upper waterproof cover and a lower waterproof cover, the upper waterproof cover and the lower waterproof cover are hollow truncated cone-shaped cover bodies, small round ends of the cover bodies are provided with upper connection portions, and large round ends of the cover bodies are provided with lower connection portions.
9. The boom structure of claim 8, wherein an upper connection portion of the upper waterproof cover is connected to the rib pre-buried tie rod, and a lower connection portion of the upper waterproof cover is connected to an upper end of the steel sleeve.
10. The boom structure of claim 9, wherein the upper connection portion of the lower waterproof cover is connected to the lower end of the steel sleeve, and the lower connection portion of the upper waterproof cover is connected to the beam body embedded tie rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223205880.5U CN219032902U (en) | 2022-11-29 | 2022-11-29 | Suspender structure of underpinning type tied-arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223205880.5U CN219032902U (en) | 2022-11-29 | 2022-11-29 | Suspender structure of underpinning type tied-arch bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219032902U true CN219032902U (en) | 2023-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223205880.5U Active CN219032902U (en) | 2022-11-29 | 2022-11-29 | Suspender structure of underpinning type tied-arch bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219032902U (en) |
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- 2022-11-29 CN CN202223205880.5U patent/CN219032902U/en active Active
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