CN113774805B - Method for mounting inclined suspender of basket arch bridge - Google Patents
Method for mounting inclined suspender of basket arch bridge Download PDFInfo
- Publication number
- CN113774805B CN113774805B CN202111138681.4A CN202111138681A CN113774805B CN 113774805 B CN113774805 B CN 113774805B CN 202111138681 A CN202111138681 A CN 202111138681A CN 113774805 B CN113774805 B CN 113774805B
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- suspender
- arch rib
- arch
- hoisting
- working cable
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling 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
- E01D4/00—Arch-type bridges
Abstract
The invention relates to the technical field of bridge engineering, in particular to a method for mounting a tilting suspender of a basket arch bridge, which comprises the following steps: s1: arranging a protective device on the hoisting path of the suspender; s2: binding a suspender through a first working cable, and hoisting the suspender until the top end part of the suspender reaches the lower chord of the arch rib; s3: binding the suspender through the second working cable, removing the first working cable, and lifting the suspender to pass through the protective space until the top end part of the suspender reaches the upper chord anchor head position of the arch rib; s4: and an anchor head nut is arranged on the suspender to fix the suspender. According to the inclined suspender installation method of the basket arch bridge, scraping and collision between the suspender and the arch rib member are converted into rotation of the roller, so that the suspender is prevented from directly scraping and colliding with the arch rib member, the time required by later repair is reduced, meanwhile, a suspension point conversion mode in the suspender hoisting process is adopted, the suspender can always move along a hoisting path, a protective device can be better arranged in a matching manner, and optimal protected hoisting is realized for the suspender.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a method for installing a tilting suspender of a basket arch bridge.
Background
The hand-basket arch bridge of tilting jib needs the jib of installation tilting between arch rib and decking, in order to guarantee the anti erosion effect of jib under outdoor environment, the jib surface generally can set up the polyurea inoxidizing coating.
The jib is at the in-process of lifting by crane, be in the state of hanging, position and rocking appear easily, and the jib need pass the inboard step of arched bridge at the in-process of lifting by crane, so take place to scrape with the step easily at position and rock the in-process and bump, cause the damage to the inoxidizing coating on jib and arched rib component surface, influence the anti erosion effect of jib and arched rib component, influence the life of arched bridge, and need install the back in place at the jib, repair many times to the position that bumps taking place to scrape, influence arched bridge construction progress, influence the efficiency of construction, simultaneously, the jib is at the installation fixed in-process, because the jib needs the slope installation to be fixed, have the inclination towards the arched bridge inboard, the same jib that causes easily bumps with scraping of arched rib component, further cause the inoxidizing coating to jib and arched rib component damage.
Therefore, at present, a technical scheme is needed urgently to solve the technical problems that in the process of lifting and fixing the suspension rod, the suspension rod is easy to scrape and collide with the arch rib component, the suspension rod and the arch rib component are damaged, and the service life of the arch bridge and the construction efficiency are influenced.
Disclosure of Invention
The invention aims to: aiming at the problems in the background technology, a method for installing a tilting suspender of a basket arch bridge is provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for installing an inclined suspender of a basket arch bridge comprises the following steps: s1: arranging a protective device on the lifting path of the suspender, wherein the protective device is provided with a protective space, and a roller is arranged on one side of the inner wall of the protective space, which is close to the inward inclination direction of the suspender; s2: binding a suspender through a first working cable, and hoisting the suspender until the top end part of the suspender reaches the lower chord of the arch rib; s3: binding the suspender through the second working cable, removing the first working cable, and lifting the suspender to penetrate through the protection space until the top end part of the suspender reaches the upper chord anchor head position of the arch rib; s4: and an anchor head nut is arranged on the suspender to fix the suspender.
The invention relates to a method for installing a tilting suspender of a basket arch bridge, which adopts a method for arranging a protective device on a hoisting path of the suspender, converts scraping between the suspender and an arch rib member into rotation of a roller, plays a role in protecting the suspender in the hoisting process and the installation and fixation process, avoids the direct scraping of the suspender and the arch rib member, ensures the service life of the suspender and the arch rib member, and reduces the time required by later repair.
In a preferred embodiment of the present invention, in S3, the suspension rod leans against the drum when passing through the protection space. If the jib is vertical to be lifted by crane, the roller is blocked between jib and arch rib component, can effectively avoid the jib to be put in place or directly take place to scrape with the arch rib component when rocking, if the jib leans on to lift by crane in the cylinder, the jib can keep the rolling contact with the cylinder at the in-process of lifting by crane, and the direction of lifting by crane of restriction jib that can be stable, avoid the jib to take place to put in place or rock, can be at utmost guarantee jib and arch rib component's life, reduce the required time of later stage repair.
As a preferable embodiment of the present invention, S1 comprises the steps of: s1.1: the protective device is erected between the arch rib step ladder pedals, so that the protective space is communicated with the through holes between the arch rib step ladder pedals; s1.2: and welding or binding and fixing the protective device and the components at the two sides of the arch rib step ladder pedal. Make protector block between jib and arch rib step, avoid the jib directly to take place to scrape and bump with the arch rib step, and make things convenient for protector's installation, make things convenient for the recycle of protector in the installation fixed process of each jib, and make the jib can follow the space between the footboard of arch rib step and lift by crane, the convenient stable control who lifts by crane the route to the jib.
In a preferred embodiment of the present invention, the guard is disposed between the steps of the step on the lower chord of the arch rib. The suspender needs to penetrate through the lower chord of the arch rib in the installation process, and the protective device is arranged between the step steps of the lower chord of the arch rib, so that the suspender can keep the stability of the installation direction, and the normal use of the step is prevented from being influenced in the installation process of the suspender.
In a preferred embodiment of the present invention, in S2, the first operating wire is tied to the boom body. So that the top end part of the suspender is conveniently lifted to the lower chord position of the arch rib.
As a preferable scheme of the present invention, in S3, the second operating cable is bound to a connecting head, and the connecting head is fixedly connected to the suspension rod. The connector is typically selected to be fixed to the end of an anchor head on a boom for point-to-point conversion during installation.
As a preferable scheme of the invention, the method further comprises the step of arranging embedded sleeves, wherein the embedded sleeves are positioned between upper chords of adjacent arch ribs, and the axial direction of the embedded sleeves is consistent with the installation inclination angle direction of the suspender. The embedded sleeve penetrates through the embeded sleeve fixed between the upper chords of the arch ribs and is used for limiting and guiding the installation direction of the hanging rod, the length of the embedded sleeve is larger than that of the embeded sleeve, in S3, a second working cable penetrates through the embedded sleeve and the protective space respectively and then is bound with the hanging rod, so that the lifting path of the hanging rod is limited by the protective space, the roller and the embedded sleeve simultaneously, the direction is unique, the lifting direction of the hanging rod can be better controlled, a protective device can be set more pointedly, the hanging rod can be well protected, and the uniform installation direction of the hanging rod is ensured.
As a preferable scheme of the present invention, the method further comprises a step of preparing the guard device, wherein the guard device comprises two support members arranged in parallel, the roller is arranged between the two support members, the roller and the support members are perpendicular to each other, and the guard space is formed between the two support members. The drum comprises a rotating shaft and a cylinder sleeved on the rotating shaft, is simple in structure and easy to prepare, can be prefabricated easily according to the width between the pedals of the actual arch rib step ladder, and can be recycled.
As a preferable aspect of the present invention, the supporting member is a rod structural member or a plate structural member.
In a preferred embodiment of the invention, in S1.1, the two ends of the support are overlapped on the two side members of the step of the rib step.
As a preferable mode of the present invention, the method further comprises the step of providing a protective layer on the drum, wherein the protective layer is coated on the drum.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the method that the protective device is arranged on the lifting path of the suspender is adopted, scraping between the suspender and the arch rib component is converted into rotation of the roller, the suspender in the lifting process and the installation and fixation process is protected, the suspender is prevented from directly scraping with the arch rib component, the service lives of the suspender and the arch rib component are ensured, and the time required by later repair is reduced;
2. by adopting the first working cable and the second working cable to be matched, and a lifting point conversion method in the lifting process of the suspender, the suspender can always move along a lifting path, the supporting arrangement of the protective device can be better carried out aiming at the lifting path of the suspender, and the optimal protected lifting is realized for the suspender.
Drawings
Fig. 1 is a schematic view of the construction of the boom of the present invention.
Fig. 2 is a schematic view of the mounting position of the boom according to the present invention.
Fig. 3 is a schematic view of the structure of the guard of the present invention.
Fig. 4 is a schematic view of the installation position of the guard according to the present invention.
An icon:
1-suspender, 11-connector, 2-protector, 21-protection space, 22-roller, 23-support piece, 3-lower arch rib chord, 4-upper arch rib chord, 5-anchor nut, 6-step ladder pedal and 7-embedded casing.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example 1
The inclined suspender installation method of the basket arch bridge in the embodiment adopts a method of arranging the protective device 2 on the hoisting path of the suspender 1, the suspender 1 shown in figure 1 is hoisted and installed, the suspender 1 is enabled to be in a state of being separated from the arch rib member through the protective device 2 in the hoisting process, the suspender 1 and the arch rib member are prevented from being scratched and damaged, the influence of later repair work on bridge construction efficiency is avoided, meanwhile, the force of scratching between the suspender 1 and the arch rib member is converted into the force for driving the roller 22 to rotate, the friction force of the suspender 1 in the hoisting process is reduced, and the hoisting efficiency of the suspender 1 is improved.
Specifically, the boom 1 passes through the protected space 21 of the guard 2 during hoisting and rests on a roller 22 located on the side wall of the protected space 21 in rolling contact with the roller 22.
The method specifically comprises the following steps:
s1: set up protector 2 on the lifting path of jib 1, specifically include S1.1: a protective device 2 is arranged between the arch rib step ladder pedals 6; s1.2: the protective device 2 is welded or bound and fixed with the components at the two sides of the arch rib step ladder footplate 6.
Specifically, in S1.1, the protective device 2 is set up between the arch rib step steps 6 corresponding to the arch rib lower chord 3 on the lifting path of the boom 1, so that the boom 1 is lifted in the protective space 21, and is supported by the rollers 22 during the lifting process and the installation and fixation process, and can only contact with the rollers 22 on the side wall of the protective space 21 in a rolling manner, but cannot directly scrape and collide with the arch rib members.
Preferably, in the method for installing the inclined suspender of the basket arch bridge of the embodiment, the cable hoisting system comprising the first operating cable and the second operating cable is used for hoisting the suspender to change the hoisting point, so that the suspender 1 can change the hoisting point in the hoisting process, the suspender 1 can always move along the hoisting path, the suspender can be smoothly hoisted to the installation position of the upper chord of the arch rib, and due to the position of the hoisting path, the matched arrangement of the protector 2 can be better carried out according to the hoisting path of the suspender 1, the optimal protected hoisting is realized for the suspender 1, and the suspender is installed to the state shown in fig. 2.
The method specifically comprises the following steps:
s2: binding a rod body of a suspender 1 through a first working cable, hoisting the suspender 1 until the top end part of the suspender 1 reaches an arch rib lower chord 3; s3: and binding the connecting head 11 of the suspension rod 1 through the second working cable, releasing the first working cable, and enabling the lifting suspension rod 1 to pass through the protective space 21 until the top end part of the suspension rod reaches the anchor head position of the upper chord 4 of the arch rib.
Specifically, the connector 11 is welded on the end part of the anchor head on the suspender 1 before the suspender 1 is hoisted, and is used for hoisting point conversion in the installation process, and the anchor head on the suspender 1 is a rod body component with external threads.
Specifically, the first working cable and the second working cable are two groups of independent working cables of the arch bridge cable hoisting system, and the suspender 1 can be smoothly hoisted to a position to be installed for fixing through the matching of the two groups of working cables.
Specifically, the method further comprises the following step of S4: an anchor head nut 5 is arranged on the suspender 1 to fix the suspender 1.
Specifically, S1, S2, S3, and S4 are performed in this order.
Preferably, the method further comprises the step of arranging the embedded sleeve 7 on the arch rib, wherein the step is carried out before the suspension rod 1 is lifted.
Specifically, the embedded sleeve 7 is fixedly arranged in the studding pipe between the upper chord 4 of the arch rib in a penetrating manner, preferably, the installation of the embedded sleeve 7 and the preparation process of the arch rib are carried out synchronously, when in installation, a hole is processed on the studding pipe, and the embedded sleeve 7 is welded and fixed after penetrating through the hole.
Specifically, in S3, the second working cable sequentially penetrates through the embedded sleeve 7 and the protection space 21 from top to bottom, the lifting path is unique, the protection device 2 can be arranged in a more targeted manner, and the good protection of the suspender 1 is realized.
Preferably, a step of preparing the shielding device 2 is also included, which is carried out before the shielding device 2 is used.
Specifically, adopt body of rod structure spare or plate body structure spare combination preparation protector 2, protector 2 includes two support piece 23 of parallel arrangement, and cylinder 22 sets up between two support piece 23, and cylinder 22 and support piece 23 mutually perpendicular form between two support piece 23 protection space 21, cylinder 22 include that pivot and cover establish in the epaxial drum of pivot, simple structure, and the preparation is easy, and the width according to actual arch rib step footboard 6 that can be easier is prefabricated, and can recycle.
Specifically, as shown in fig. 3, in this embodiment, support member 23 adopts the form of body of rod structure and plate structure combination, body of rod structure and plate structure are along self length direction welded connection, the pivot both ends of cylinder 22 rotate with the plate structure respectively and are connected, specifically, as shown in fig. 4, protector's installation is carried out, make the stable overlap joint of body of rod structure tip on arch rib step ladder footboard 6 one side component, the one side that cylinder 22 was kept away from to the plate structure sets up the locating plate, set up the overlap joint piece on the locating plate, the locating plate can be stable support by on the opposite side component of arch rib step ladder footboard 6, through the overlap joint piece overlap joint at the opposite side component of arch rib step ladder footboard 6, realize that protector 2's position is injectd, moreover, the steam generator is simple in structure, the preparation is easy, can be easier carry out the job site preparation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A method for installing an inclined suspender of a basket arch bridge is characterized by comprising the following steps:
s1: arranging a protective device (2) on a hoisting path of a suspender (1), wherein the protective device (2) is provided with a protective space (21), and a roller (22) is arranged on one side of the inner wall of the protective space (21) close to the inward inclining direction of the arch rib;
s2: the suspension rod (1) is bound through a first working cable, the suspension rod (1) is lifted until the top end part of the suspension rod (1) reaches an arch rib lower chord (3), and the first working cable is bound on a rod body of the suspension rod (1);
s3: binding a suspender (1) through a second working cable, removing the first working cable, enabling a hoisting suspender (1) to penetrate through the protective space (21) until the top end part of the suspender (1) reaches the anchor head position of an arch rib upper chord (4), binding the second working cable on a connector (11), fixedly connecting the connector (11) to the end part of the anchor head on the suspender (1), wherein the first working cable and the second working cable are two groups of independent working cables of an arch bridge cable hoisting system;
s4: an anchor head nut (5) is arranged on the suspender (1) to fix the suspender (1).
2. A method of installing a tilting boom for a basket arch bridge according to claim 1, characterised in that in S3 the boom (1) is leant against the drum (22) as it is passed through the sheltering space (21).
3. A method of installing a tilting boom for a basket arch bridge according to claim 1, wherein S1 comprises the steps of:
s1.1: the protective device (2) is erected between the arch rib step steps (6) to enable the protective space (21) to be communicated with the arch rib step steps (6) through holes;
s1.2: and welding or binding and fixing the protective device (2) and the components at two sides of the arch rib step ladder pedal (6).
4. A method of installing a tilting boom for a basket arch according to claim 3, characterised in that in S1.1 the guard (2) is placed between the steps of the lower chord (3) of the arch rib.
5. A method of installing a tilting boom for a basket arch bridge according to claim 1, further comprising the step of providing an embedment sleeve (7), said embedment sleeve (7) being located between adjacent upper chords (4) of the arch ribs, the axial direction of said embedment sleeve (7) being aligned with the installation inclination direction of the boom (1), and a second working cable being passed through said embedment sleeve (7) and said shielding space (21), respectively, in S3.
6. A basket arch bridge tilting boom installation method according to claim 1, further comprising the step of preparing said shielding device (2), said shielding device (2) comprising two support members (23) arranged in parallel, said drum (22) being arranged between said two support members (23), said drum (22) and said support members (23) being perpendicular to each other, said shielding space (21) being formed between said two support members (23).
7. A method of installing a tilting boom for a basket arch bridge according to claim 6, characterised in that said support member (23) is a structural member of a bar or a structural member of a plate.
8. A method of installing a basket arch bridge tilting boom according to any of claims 1 to 7, further comprising the step of providing a protective coating on said drum (22), said protective coating being coated on said drum (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111138681.4A CN113774805B (en) | 2021-09-27 | 2021-09-27 | Method for mounting inclined suspender of basket arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111138681.4A CN113774805B (en) | 2021-09-27 | 2021-09-27 | Method for mounting inclined suspender of basket arch bridge |
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| Publication Number | Publication Date |
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| CN113774805A CN113774805A (en) | 2021-12-10 |
| CN113774805B true CN113774805B (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111138681.4A Active CN113774805B (en) | 2021-09-27 | 2021-09-27 | Method for mounting inclined suspender of basket arch bridge |
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| CN (1) | CN113774805B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3114532C1 (en) * | 1981-04-10 | 1982-11-04 | Willy Habegger AG, 3600 Thun | Suspension bridge |
| CN102926332B (en) * | 2012-11-09 | 2014-08-20 | 武汉二航路桥特种工程有限责任公司 | Derrick arrangement of tools for replacing steel arch bridge suspender and replacing method thereof |
| JP6714980B2 (en) * | 2015-07-03 | 2020-07-01 | 旭化成建材株式会社 | Hanging equipment for long structures such as steel pipe piles with blades |
| CN108589533B (en) * | 2018-04-02 | 2019-12-31 | 广西路桥工程集团有限公司 | Application method of arch rib high-altitude folding type operation platform |
| CN111155412A (en) * | 2020-03-13 | 2020-05-15 | 江西省交通设计研究院有限责任公司 | Large swing angle steel pipe concrete arch bridge suspension cable system |
| CN212689647U (en) * | 2020-07-21 | 2021-03-12 | 济南腾盾信息技术有限公司 | Protective structure for building 5G communication base station |
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2021
- 2021-09-27 CN CN202111138681.4A patent/CN113774805B/en active Active
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