CN214245411U - Large-span cable-stayed cantilever cable hoisting system - Google Patents

Abstract

The utility model provides a large-span cable-stayed cantilever cable hoisting system, which is provided with a hoisting foundation system, a cable system, a pulley block and a temporary adjusting frame; four edges of an anchorage foundation of the hoisting foundation system are provided with cast-in-situ convex ribs; the cast-in-situ convex rib and the rock body are mutually embedded and tensile; an anchor cable of the cable system is used for connecting the anchorage and the top of the cable tower; the main cable and the working cable are connected with the tops of cable towers at the north and south sides; the working cable is connected with the pulley block and used for realizing hoisting and moving of the pulley block; one end of the buckle cable is connected with the box type arch and the arch bridge foundation, and the other end of the buckle cable is connected with the hoisting foundation system. This application is mutually inlayed through the novel anchor spindle of taking cast-in-place fin and rock mass, ensures the stability on basis, and rethread cable crane system slides and hoists the box and encircles, and the installation of butt joint is assisted through butt joint temporary fixation arch adjustment frame simultaneously to improve the box and encircle the efficiency and the precision of hoist and mount and concatenation, and improve the stability and the linearity of long span bridge.

Description

Large-span cable-stayed cantilever cable hoisting system

Technical Field

The utility model relates to a bridge construction technical field, concretely relates to cantilever cable hoist and mount system is drawn to one side to long span.

Background

The large tonnage and the multiple sections brought by the large span mean that the cable crane system is under the action of high load for a long time, and have high requirements on the safety and the stability of the cable crane. Meanwhile, the multiple sections provide higher requirements for calculation and field implementation of construction control, and not only are accurate control of assembly line shape required, but also the number of times of tensioning of the buckle cable is reduced as much as possible so as to achieve the purpose of easy operation for suspension assembly. Therefore, the large-span suspension arch has high requirements on configuration control and construction cable force.

The conventional cable hoisting construction is often insufficient in precision control of bridge hoisting assembly due to factors such as hoisting difficulty, large span of bridge sections and the like during assembly, so that linear control after assembly is not accurate enough, and problems such as insufficient anchorage stability and the like due to difficulty in bridge foundation construction caused by terrain and topography problems are caused. Therefore, it is necessary to develop a large-span cable-stayed cantilever cable hoisting system to solve the above problems, so as to improve the hoisting of the box-type arch and the overall quality of the bridge.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a large span cable-stayed cantilever cable hoist and mount system aims at solving the not enough technical problem of precision control who assembles to bridge hoist and mount because of the hoist and mount degree of difficulty, bridge segment span greatly when encircleing the case hoist and mount and assembling at present stage.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the large-span cable-stayed cantilever cable hoisting system comprises a hoisting foundation system, a cable system, a pulley block and a temporary adjusting frame; the hoisting foundation system comprises an anchorage and a cable tower; four edges of an anchorage foundation of the anchorage are provided with cast-in-situ convex ribs; the cast-in-situ convex rib and the rock body are mutually embedded and tensile; the cable system comprises an anchor cable, a main cable, a working cable and a buckling cable; the anchor cable is used for connecting the anchorage and the top of the cable tower; the main cable and the working cable are connected with the tops of cable towers at the north and south banks; the working cable is connected with the pulley block and used for realizing hoisting and moving of the pulley block; one end of the buckle cable is connected with the box-type arch and the arch bridge foundation, and the other end of the buckle cable is connected with the hoisting foundation system, so that the temporary positioning connection of the fixed bridge body with the temporary adjusting frame and the box-type arch through the sling cable is realized.

As a further improvement of the invention, the hoisting foundation system also comprises a pier stud; the top of the most inner pier stud is provided with a winch for adjusting and fixing a construction buckle cable; the top of the pier column is provided with a panel to form an operating platform.

As a further improvement of the invention, the anchorage comprises an anchorage pile, an anchorage foundation, an anchorage block and a front anchor chamber; the front anchor chamber is used for connecting the anchor block and the foundation, and the end part of the front anchor chamber is used for connecting and fixing the anchor cable; cast-in-place ribs are arranged on four sides of an anchorage foundation and are mutually embedded with a rock body for tensile strength.

As a further improvement of the invention, the tackle pulley comprises a sports car, a pulley, a lifting appliance and a sling which are arranged on a working cable; the sports car, the pulley, the lifting appliance and the sling are sequentially connected; the sling is connected with the temporary adjusting frame and the box-type arch and used for assisting temporary fixed connection of the box-type arch.

As a further improvement of the invention, the temporary adjusting frame comprises two arched steel frames which are shaped like a Chinese character 'ji', the middle part of the top of each arched steel frame is lifted by a lifting rope, a plurality of bolt holes are arranged on two sides of the upper part of each arched steel frame, and a plurality of jacks are arranged on the inner side of the bottom of each arched steel frame; the jack rope is fixed on the tackle pulley through a hanging ring.

The two arched steel frames are fixedly connected through a temporary connecting rod, bolt holes are formed in the two sides of each arched steel frame, one end of each arched steel frame is temporarily connected to the I section box arch through a bolt, the other end of each arched steel frame limits the II section box arch, and a jack preset in the arched steel frame is used for finely adjusting the arch box; the top of the arched steel frame is connected with the lifting ring through a lifting rope, and the lifting ring is connected with the sports car through a lifting rope.

As a further improvement of the invention, the upper part and the bottom of the arched steel frame are respectively provided with a plurality of bolt holes, the bolt holes on the two sides are used for fixing the arched box, and the bolt hole in the middle part is used for connecting a temporary connecting rod to fix the two arched steel frames to form a whole; the temporary connecting rod is in a shape of a Chinese character 'men', and vertical rods at two ends of the temporary connecting rod penetrate through the bolt holes and then are screwed tightly to be fixed; jacks are arranged at the bottom of the arched steel frame and at the upper and lower parts of the inner side of the arched steel frame.

Compared with the prior art, the beneficial effects of the utility model are that:

this application is mutually inlayed through the novel anchor spindle of taking cast-in-place fin and rock mass, ensures the stability on basis, and rethread cable crane system slides and hoists the box and encircles, and the installation of butt joint is assisted through butt joint temporary fixation arch adjustment frame simultaneously to improve the box and encircle the efficiency and the precision of hoist and mount and concatenation, and improve the stability and the linearity of long span bridge.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the whole hoisting of the large-span cable-stayed cantilever cable of the present invention;

fig. 2 is an anchorage structure diagram of the large-span cable-stayed cantilever cable hoisting system of the utility model;

FIG. 3 is a block diagram of a pulley block of the large-span cable-stayed cantilever cable hoisting system of the present invention;

FIG. 4 is a schematic structural view of the box-type arch butt joint temporary adjusting frame of the present invention;

FIG. 5 is a schematic view of a single arched steel frame of the temporary box arch butt joint adjusting frame of the present invention;

the reference numbers in the figures illustrate:

1. hoisting the foundation system; 11. anchorage; 111. anchoring piles; 112. an anchorage foundation; 113. an anchor block; 114. a front anchor chamber; 115. casting convex ribs in situ; 12. a cable tower; 13. a counter-force block; 14. an arch support; 15. pier studs; 2. a cable system; 21. an anchor cable; 22. a main rope; 23. a working cable; 24. buckling a cable; 25. a sports car; 26. a pulley; 27. a spreader; 28. a sling; 3. a tackle pulley set; 4. a bridge body; 41. i section of box-type arch; 42. II, a section of box-shaped arch; 5. a winch; 6. an operating platform; 7. a temporary adjusting frame; 71. an arched steel frame; 72. a temporary connecting rod; 73. a jack; 74. a bolt; 75. bolt holes; 8. a lifting rope; 9. a lifting ring.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The invention provides a large-span cable-stayed cantilever cable hoisting system by combining with attached drawings 1-5, and aims to solve the technical problem that the accuracy of bridge hoisting and assembling is not sufficiently controlled due to the hoisting difficulty and the large span of bridge sections during the hoisting and assembling of arch boxes at the present stage.

Specifically, the device comprises a hoisting foundation system 1, a cable system 2, a pulley block 3 and a temporary adjusting frame 7; the hoisting foundation system 1 comprises an anchorage 11 and a cable tower 12; cast-in-place convex ribs 115 are arranged on four sides of an anchor foundation 112 of the anchor 11; the cast-in-situ convex rib 115 and the rock body are mutually embedded and tensile; the cable system 2 comprises an anchor cable 21, a main cable 22, a working cable 23 and a buckling cable 24; the anchor cable 21 is used for connecting the anchor 11 with the top of the cable tower 12; the main cable 22 and the working cable 23 are connected with the tops of the cable towers 12 at the north and south sides; the working cable 23 is connected with the pulley block 3 and is used for realizing the hoisting and moving of the pulley block 3; one end of the buckle cable 24 is connected with the box-type arch and the arch bridge foundation, and the other end of the buckle cable is connected with the hoisting foundation system 1, so that the fixed bridge body 4 is connected with the temporary adjusting frame 7 and the box-type arch through the sling 28 and used for assisting the temporary fixed connection of the box-type arch.

This application is mutually inlayed through the novel anchor of taking cast-in-place fin 115 and rock mass, ensures the stability on basis, and rethread cable crane system slides and hoists the box and encircles, and the installation of butt joint is assisted through the interim fixed arch adjustment frame of butt joint simultaneously to improve the box and encircle the efficiency and the precision of hoist and mount and concatenation, and improve the stability and the linearity of long span bridge.

Further, the hoisting foundation system 1 further comprises a pier stud 15; the top of the innermost pier stud 15 is provided with a winch 5 for adjusting and fixing a construction buckle 24; the top of pier 15 is mounted with a panel forming the operating platform 6.

Further, the anchorage 11 includes an anchorage pile 111, an anchorage foundation 112, an anchorage block 113, and a front anchor chamber 114; the front anchor chamber 114 is used for connecting the anchor block 113 with the foundation, and the end part of the front anchor chamber is used for connecting and fixing the anchor cable 21; cast-in-place convex ribs 115 are arranged on four sides of the anchorage foundation 112 and are mutually embedded with the rock body to resist tension, so that the stability of the anchorage 11 is improved.

Further, the cable tower 12 is formed by assembling steel structural members; the working cable 23 is a steel cable.

Further, the tackle 3 includes a running car 25 mounted on the working cable 23, a pulley 26, a sling 27 and a sling 28; the sports car 25, the pulley 26, the sling 27 and the sling 28 are connected in sequence; the sling 28 is connected with the temporary adjusting frame 7 and the box-shaped arch and is used for assisting the temporary fixed connection of the box-shaped arch; the temporary adjusting frame 7 comprises two arched steel frames 71, the arched steel frames 71 are in a shape like a Chinese character 'ji', the middle part of the top of each arched steel frame is lifted by a lifting rope 8, a plurality of bolt holes 75 are formed in two sides of the upper part of each arched steel frame, and a plurality of jacks 73 are formed in the inner side of the bottom of each arched steel frame; the lifting rope 8 is fixed on the tackle pulley 3 through a lifting ring 9.

Further, the two arched steel frames 71 are fixedly connected through a temporary connecting rod 72, bolt holes 75 are formed in the two sides of each arched steel frame 71, one end of each arched steel frame is temporarily connected to the I-section box-type arch 41 through a bolt 74, the other end of each arched steel frame is used for limiting the II-section box-type arch 42, and a jack 73 preset in each arched steel frame is used for finely adjusting the arch box; the top of the arched steel frame 71 is connected with a hanging ring 9 through a lifting rope 8, and the hanging ring 9 is connected with the sports car 25 through a lifting rope 28.

Further, the arched steel frames 71 are in a shape like a Chinese character 'ji', a plurality of bolt holes 75 are formed in the upper portion and the bottom portion of each arched steel frame 71, the bolt holes 75 in the two sides are used for fixing the arched boxes, and the bolt holes 75 in the middle portion are used for connecting the temporary connecting rods 72 to fix the two arched steel frames 71 into a whole; the temporary connecting rod 72 is in a shape of a door, and vertical rods at two ends of the temporary connecting rod penetrate through bolt holes 75 and then are screwed with bolts 74 for fixing; jacks 73 are arranged at the bottom and the upper and lower parts of the inner side of the arched steel frame 71 to finely adjust the unconnected box arches.

The method comprises the following steps that accurate lofting is conducted according to construction drawings, embedded steel plates are buried in an enlarged foundation, and a tower body is installed in a segmented mode; cable system arrangement: installing a cable system respectively comprising a main cable system, a working cable system and a sling system through a winch; arranging anchors: the anchorage is a reinforced concrete structure with the length of 10m (transverse direction) multiplied by 5.0m (forward direction) multiplied by 3.5m (depth), the anchorage foundation is poured C30 concrete, the bottom of the foundation is provided with an anchor pile which resists shearing, and cast-in-place convex ribs on four sides are embedded with the rock mass; hoisting and moving the arch box by the pulley block; limiting and adjusting the arch centering by using the temporary adjusting bracket, and performing arch box closure operation by adopting an edge-to-center closing sequence; after the single-line arch box is closed, longitudinal seam concrete between the arch boxes, cast-in-place layer concrete of the arch box top plate and beam-padding concrete can be poured.

It should be noted that the detailed description of the present invention is not included in the prior art, or can be obtained directly from the market, and those skilled in the art can obtain the detailed description without creative efforts, and the detailed connection method has a very wide application in the field or daily life, and is not described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," 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 invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (7)

1. The large-span cable-stayed cantilever cable hoisting system is characterized in that: the device comprises a hoisting foundation system, a cable system, a pulley block and a temporary adjusting frame; the hoisting foundation system comprises an anchorage and a cable tower; four edges of an anchorage foundation of the anchorage are provided with cast-in-situ convex ribs; the cast-in-situ convex rib and the rock body are mutually embedded and tensile; the cable system comprises an anchor cable, a main cable, a working cable and a buckling cable; the anchor cable is used for connecting the anchorage and the top of the cable tower; the main cable and the working cable are connected with the tops of cable towers at the north and south banks; the working cable is connected with the pulley block and used for realizing hoisting and moving of the pulley block; one end of the buckle cable is connected with the box-type arch and the arch bridge foundation, and the other end of the buckle cable is connected with the hoisting foundation system, so that the temporary positioning connection of the fixed bridge body with the temporary adjusting frame and the box-type arch through the sling cable is realized.

2. The large-span cable-stayed cantilever cable hoisting system according to claim 1, wherein: the hoisting foundation system also comprises a pier stud; the top of the most inner pier stud is provided with a winch for adjusting and fixing a construction buckle cable; the top of the pier column is provided with a panel to form an operating platform.

3. The large-span cable-stayed cantilever cable hoisting system according to claim 1, wherein: the anchorage comprises an anchorage pile, an anchorage foundation, an anchorage block and a front anchorage chamber; the front anchor chamber is used for connecting the anchor block and the foundation, and the end part of the front anchor chamber is used for connecting and fixing the anchor cable; cast-in-place ribs are arranged on four sides of an anchorage foundation and are mutually embedded with a rock body for tensile strength.

4. The large-span cable-stayed cantilever cable hoisting system according to claim 1, wherein: the tackle pulley set comprises a sports car, a pulley, a lifting appliance and a sling which are arranged on a working cable; the sports car, the pulley, the lifting appliance and the sling are sequentially connected; the sling is connected with the temporary adjusting frame and the box-type arch and used for assisting temporary fixed connection of the box-type arch.

5. The large-span cable-stayed cantilever cable hoisting system according to claim 1, wherein: the temporary adjusting frame comprises two arched steel frames, the arched steel frames are in a shape like a Chinese character 'ji', the middle parts of the tops of the arched steel frames are lifted by lifting ropes, a plurality of bolt holes are formed in two sides of the upper parts of the arched steel frames, and a plurality of jacks are arranged on the inner sides of the bottoms of the arched steel frames; the jack rope is fixed on the tackle pulley through a hanging ring.

6. The large-span cable-stayed cantilever cable hoisting system according to claim 1, wherein: the two arched steel frames are fixedly connected through a temporary connecting rod, bolt holes are formed in the two sides of each arched steel frame, one end of each arched steel frame is temporarily connected to the I section box arch through a bolt, the other end of each arched steel frame limits the II section box arch, and a jack preset in the arched steel frame is used for fine adjustment of the arched box; the top of the arched steel frame is connected with the lifting ring through a lifting rope, and the lifting ring is connected with the sports car through a lifting rope.

7. The large-span cable-stayed cantilever cable hoisting system according to claim 6, wherein: the upper part and the bottom of each arched steel frame are provided with a plurality of bolt holes, the bolt holes on two sides are used for fixing the arched box, and the bolt hole in the middle is used for connecting a temporary connecting rod to fix two arched steel frames into a whole; the temporary connecting rod is in a shape of a Chinese character 'men', and vertical rods at two ends of the temporary connecting rod penetrate through the bolt holes and then are screwed tightly to be fixed; jacks are arranged at the bottom of the arched steel frame and at the upper and lower parts of the inner side of the arched steel frame.

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