CN115613467B - Cable-stayed bridge cable guide pipe positioning and reinforcing device and construction method - Google Patents
Cable-stayed bridge cable guide pipe positioning and reinforcing device and construction method Download PDFInfo
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- CN115613467B CN115613467B CN202211380626.0A CN202211380626A CN115613467B CN 115613467 B CN115613467 B CN 115613467B CN 202211380626 A CN202211380626 A CN 202211380626A CN 115613467 B CN115613467 B CN 115613467B
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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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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Abstract
The application relates to the technical field of cable guide pipe positioning and reinforcement of cable-stayed bridges, and provides a cable-stayed bridge cable guide pipe positioning and reinforcement device, which aims at the situation that the traditional cable guide pipe is easy to deviate due to beam body pouring concrete and the like after being positioned; the longitudinal positioning assembly is connected with the cable guide pipe to hoist the cable guide pipe, the clamping piece comprises two groups of clamping rods fixed on the stiff framework, the two groups of clamping rods are crossed to form an X shape, and the cable guide pipe is clamped in a V-shaped opening formed by the two groups of clamping rods. The application has the effect of ensuring that the cable duct is not easy to deviate after being positioned.
Description
Technical Field
The application relates to the technical field of positioning and reinforcing of cable-stayed bridge end cable guide pipes, in particular to a cable-stayed bridge cable guide pipe positioning and reinforcing device and a construction method.
Background
In the construction process of the cable-stayed bridge, a cable guide pipe for the stay cable to penetrate is needed to be pre-buried and fixed at the bridge. And whether the positioning of the cable pipeline accurately relates to the stress and the linear control of the stay cable can meet the construction requirement when the subsequent stay cable is in tensioning construction.
In the current construction process of the cable guide pipe of the stay cable, a stiff framework is required to be erected on the reinforcing steel bars of the bridge girder body, the cable guide pipe is hoisted on the stiff framework through a chain block, and the cable guide pipe is positioned after the cable sleeve pipe is moved to a designated position through the chain block by matching with a total station; and welding the positioned cable duct with the reinforcing steel bars in the bridge to fix the cable duct.
Aiming at the related technology, the welding process of the cable guide pipe and the concrete pouring process of the subsequent bridge body are easy to lead the cable guide pipe which is already positioned to have position deviation, and once the cable guide pipe has the position deviation, the cable guide pipe is easy to generate friction with the cable guide pipe during the subsequent tensioning of the stay cable, thereby influencing the whole stress condition of the stay cable.
Disclosure of Invention
In order to prevent the cable guide pipe from being deviated after being positioned, the application provides a cable-stayed bridge cable guide pipe positioning and reinforcing device and a construction method.
The application provides a cable-stayed bridge cable guide pipe positioning and reinforcing device, which adopts the following technical scheme:
the cable-stayed bridge cable duct positioning and reinforcing device comprises a plurality of stiff frameworks vertically and fixedly arranged on a bridge girder steel bar, wherein the stiff frameworks are uniformly distributed along the extending direction of a cable duct, and the stiff frameworks are respectively provided with a longitudinal positioning component for adjusting the longitudinal position of the cable duct, a transverse positioning component for adjusting the transverse position of the cable duct and a clamping piece for limiting the displacement of the cable duct; the longitudinal positioning assembly is connected with the cable guide pipe to hoist the cable guide pipe, the clamping piece comprises two groups of clamping rods fixed on the stiff framework, the two groups of clamping rods are crossed to form an X shape, and the cable guide pipe is clamped in a V-shaped opening formed by the two groups of clamping rods.
Through adopting above-mentioned technical scheme, cooperation total powerstation and remove cable pipe to appointed mounted position through vertical locating component and horizontal locating component after, cross two sets of clamping bars and form X shape, and make cable pipe embedding in the V-arrangement mouth that two sets of clamping bars formed, fix two sets of clamping bars on stiffness skeleton at last, realize the location to cable pipe, compare traditional cable pipe location after accomplishing, with the mode of cable pipe welding at the roof beam body reinforcing bar, the welding has been reduced and has been led to the condition that cable pipe takes place the skew, simultaneously when follow-up pouring roof beam body concrete, be convenient for restrict cable pipe through the joint piece and take place the skew, the cable pipe of being convenient for is located the shaping on the bridge better. Through welding the strength skeleton on the reinforcing bar of the roof beam body, follow-up pouring the strength skeleton together with the reinforcing bar net, be convenient for further promote the bulk strength of bridge roof beam body through the strength skeleton.
Preferably, the longitudinal positioning assembly comprises a chain block arranged at the top of the stiff framework, and the cable guide pipe is hoisted on the stiff framework through the chain block; the transverse positioning assembly comprises a threaded sleeve horizontally arranged on one side of the stiff framework, the axis of the threaded sleeve is vertical to the axis of the cable guide pipe, the threaded sleeve is opposite to the cable guide pipe, and the threaded sleeve is coaxially and spirally connected with an adjusting screw.
Through adopting above-mentioned technical scheme, alright realize the regulation of cable pipe longitudinal position through chain block, alright drive cable pipe along the horizontal direction removal through adjusting screw through rotation adjusting screw, and then realize the regulation of cable pipe transverse position for the position adjustment of cable pipe is simple and convenient more.
Preferably, the stiff framework comprises two groups of vertical rods which are vertically arranged, a connecting rod is further arranged at the top end of each vertical rod, and two ends of the connecting rod are respectively connected with the two groups of vertical rods in a opposite-pulling mode; the periphery of the threaded sleeve is fixedly provided with a supporting plate, and the supporting plate is fixed on the vertical rod through a bolt and nut pair.
Through adopting above-mentioned technical scheme for threaded sleeve need not with pole setting integrated into one piece, follow-up restriction cable pipe displacement back through the joint spare, can demolish threaded sleeve from the pole setting, the turnover of the horizontal locating component of being convenient for uses.
Preferably, the construction method of the cable-stayed bridge cable guide pipe positioning and reinforcing device comprises the following steps:
s1: stiffness skeleton mounting: welding the bottom ends of two vertical rods of the stiffness framework on a reinforcing mesh of a bridge body;
s2: the longitudinal positioning assembly and the transverse positioning assembly are installed: the chain block is hung on the connecting rod; fixing a supporting plate on one group of upright rods of the stiff framework through bolt and nut pairs;
s3: hoisting a cable duct: the cable guide pipe is moved into the space between two groups of upright poles of the stiff framework and is lifted by the chain block;
s4: and (3) clamping piece installation: the bottom ends of the two groups of clamping connection rods are respectively hinged to the two groups of upright rods through pins, and the two groups of clamping connection rods are crossed to form an X shape;
s5: coarse positioning of a cable duct: moving the cable guide pipe to an approximate position by matching the total station and through the longitudinal positioning assembly and the transverse positioning assembly;
s6: swinging the two groups of clamping rods until the two groups of clamping rods are all abutted with the bottom of the cable guide pipe;
s7: fine positioning of the cable duct: matching the total station and continuing to swing the two groups of clamping rods until the cable guide pipe is moved to a designated position;
s8: and welding and fixing the intersection of the two groups of clamping connection rods and the hinge joint of the clamping connection rods and the vertical rod.
Through adopting above-mentioned technical scheme, after longitudinal positioning subassembly and horizontal positioning subassembly remove cable pipe to the assigned position, through two sets of clamping bars of swing, utilize two sets of clamping bars cooperation to remove cable pipe to the mode of assigned position, when being favorable to reducing chain block regulation cable pipe, the cable pipe takes place to rock easily and leads to cable pipe location comparatively difficult, need the circumstances of location repeatedly, simultaneously after two sets of clamping bars of crossing set up drive cable pipe to the position of formulating, carry out welded fastening to the intersection of two sets of clamping bars, alright realize two sets of clamping bars intersection angle fixed, and then realize the spacing to cable pipe through two sets of clamping bars, be difficult for producing the displacement when follow-up roof beam body pouring concrete for the cable pipe can more accurately shaping on the bridge girder body.
Preferably, in step S4, after the two groups of clamping rods are respectively hinged on the two groups of vertical rods and the two groups of clamping rods are intersected to form an X shape, a driving assembly is installed on the two groups of vertical rods, the driving assembly corresponds to the clamping rods on the adjacent vertical rods, the driving assembly comprises a connecting plate arranged on the vertical rods, driving screws are threaded on the connecting rods, and one end, far away from the connecting plate, of each driving screw abuts against the movable end of the corresponding clamping rod to prop up the corresponding clamping rod.
By adopting the technical scheme, the two groups of clamping connection rods can swing by rotating the driving screw rods on the two groups of connection plates, so that the cable guide pipe can be conveniently driven to move up and down by the swing of the two groups of clamping connection rods; the drive screw is coaxially and threadedly connected to the connecting plate, stepless adjustment of the swing angle of the clamping rod can be realized by rotating the drive screw on one hand, self-locking of the clamping rod can be realized by the drive screw, and the cable guide pipe can be conveniently moved to a designated position by swinging two groups of clamping rods.
Preferably, the driving screw rod is arranged in a hemispherical shape towards one end of the corresponding clamping connection rod.
By adopting the technical scheme, the friction force between the driving rod and the clamping rod is reduced, and the driving screw rod can be conveniently driven to swing the corresponding clamping rod more smoothly.
Preferably, in step S2, after the installation of the longitudinal positioning assembly and the transverse positioning assembly is completed, the supporting rods are welded in a split manner between adjacent upright rods, and the graduated scale is fixed on the supporting rods;
in the step S3, after the cable duct is lifted by the chain block, a reference line parallel to the theoretical axis of the cable duct is made in the middle of the periphery of the top of the cable duct;
and in the step S5, when the transverse position of the cable duct is regulated by the transverse positioning assembly, a certain scale on the graduated scale is used as a reference point, and the cable duct is driven to move by rotating the regulating screw rod until the reference line on the cable duct coincides with the reference point on the graduated scale.
Through adopting above-mentioned technical scheme, be convenient for remove cable duct to the horizontal position of needs fast for cable duct's thick location is simpler convenient more.
Preferably, in step S4, when the clamping rod is installed, holes through which the pins pass are drilled in the clamping rod and the upright rod; the clamping rod is moved to enable the holes of the clamping rod and the vertical rod to be opposite, the pin is sequentially penetrated into the holes of the clamping rod and the vertical rod, and the anti-drop nut is screwed into the tail end of the pin.
Through adopting above-mentioned technical scheme, through the setting of anticreep nut for the pin is difficult for breaking away from clamping rod and pole setting, and the clamping rod of being convenient for can articulate more firmly in the pole setting.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the longitudinal positioning assembly and the transverse positioning assembly are arranged on the stiffness framework, the longitudinal positioning assembly is connected with the cable guide pipe, the stiffness framework is also provided with a clamping piece, the clamping piece comprises two groups of X-shaped clamping rods which are arranged in a crossing way, and the cable guide pipe is embedded into the V-shaped openings at the tops of the two groups of clamping rods; after the supporting rod is matched with the total station and moved to a designated position through the longitudinal positioning assembly and the transverse positioning assembly, the two groups of clamping rods are crossed to form an X shape, the cable duct is embedded into the V-shaped opening at the top of the two groups of clamping rods, and the two groups of clamping rods are fixed on the stiffness framework, so that the cable duct is positioned and reinforced, and is not easy to displace.
2. The two groups of clamping connection rods are respectively hinged to the two groups of upright rods, the two groups of clamping connection rods are crossed to form an X shape, the two groups of clamping connection rods are in butt joint with the cable guide pipe, and the longitudinal position of the cable guide pipe is adjusted by swinging the clamping connection rods of the two groups, so that the condition that the cable guide pipe is easy to shake and is difficult to position and needs to be repeatedly positioned when the longitudinal position of the cable guide pipe is adjusted by hand pulling is reduced;
3. through with the clamping rod articulated in the pole setting that corresponds after, in pole setting installation drive assembly, drive assembly is including installing the connecting plate in the backup pad, and drive screw is worn to establish by the connecting plate screw thread, and drive screw props up the clamping rod with the slope upper end butt of clamping rod in the relative pole setting, through rotating drive screw alright adjust the swing angle of clamping rod, the clamping rod of two sets of being convenient for drives cable pipe reciprocates better.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
FIG. 2 is a schematic illustration of the structure of an embodiment of the present application for use in connecting a stiff skeleton to the interior of a beam body.
Fig. 3 is a schematic diagram of the structure of the portion a in fig. 2.
Reference numerals illustrate:
1. bridge body; 11. a reinforcing mesh; 2. a stiff skeleton; 21. a vertical rod; 22. a connecting rod; 23. a support rod; 24. a graduated scale; 25. a clamping piece; 251. a clamping rod; 252. a pin; 3. chain block; 4. a lateral positioning assembly; 41. a threaded sleeve; 42. adjusting a screw; 43. a support plate; 5. a connecting plate; 51. driving a screw; 6. a cable guide tube; 61. ear plate.
Detailed Description
The application is described in further detail below with reference to fig. 1-3.
The embodiment of the application discloses a cable-stayed bridge cable guide pipe positioning and reinforcing device and a construction method.
Referring to fig. 1 and 2, a cable-stayed bridge cable guide pipe positioning and reinforcing device comprises two groups of stiffness frameworks 2 fixed on a bridge beam body 1, wherein the two groups of stiffness frameworks 2 are uniformly distributed along a cable guide pipe 6, the stiffness frameworks 2 are provided with a longitudinal positioning component and a transverse positioning component 4, the longitudinal positioning component is used for adjusting the longitudinal position of the cable guide pipe 6, the transverse positioning component 4 is used for adjusting the transverse position of the cable guide pipe 6, and the longitudinal positioning component is connected with the cable guide pipe 6 to hoist the cable guide pipe 6; the stiff skeleton 2 is also fixed with the joint piece 25, and the joint piece 25 includes two sets of joint poles 251, and two sets of joint poles 251 alternately form X shape, and cable pipe 6 imbeds in the V-arrangement mouth at two sets of joint poles 251 tops, realizes restricting cable pipe 6 through joint piece 25 and takes place the displacement.
Referring to fig. 1 and 2, the stiff skeleton 2 includes two sets of vertical poles 21, the bottom of the poles 21 is welded with the reinforcing mesh 11 inside the bridge beam body 1, a connecting rod 22 is further arranged between the two sets of poles 21, the connecting rod 22 is arranged between the two sets of poles 21, two ends of the connecting rod 22 are welded and fixed with one ends of the two sets of poles 21, which are close to each other, respectively, and in this embodiment, the poles 21 and the connecting rod 22 are angle irons.
Referring to fig. 1 and 2, the longitudinal positioning assembly includes a chain block 3 hung on a connecting rod 22, in the construction process, a hanging ring can be welded on the connecting rod 22, and the chain block 3 is hung on the hanging ring, so that the chain block 3 is more stably installed on the connecting rod 22. The cable duct 6 is welded and fixed with two groups of lug plates 61 corresponding to the two groups of stiffness frameworks 2, and the lifting hook on the chain block 3 chain is hooked on the lug plate 61 of the cable duct 6, so that the longitudinal positioning assembly is connected with the cable duct 6 to lift the cable duct 6.
Referring to fig. 1 and 2, the transverse positioning assembly 4 comprises a threaded sleeve 41 horizontally fixed to the upright 21, the threaded sleeve 41 being axially perpendicular to the cable guide 6 and the threaded sleeve 41 being opposite the cable guide 6. The threaded sleeve 41 is coaxially and threadedly connected with an adjusting screw rod 42, and the transverse position of the cable duct 6 can be adjusted by rotating the adjusting screw rod 42.
Referring to fig. 1 and 2, the threaded sleeve 41 is fixed with a supporting plate 43, the supporting plate 43 is fixed on the upright rod 21 through two sets of bolt and nut pairs, the threaded sleeve 41 is detachably connected with the stiff framework 2, and after the follow-up construction is completed, the supporting plate 43 can be detached from the upright rod 21, so that the turnover use of the transverse positioning assembly 4 is facilitated.
Referring to fig. 2 and 3, a construction method of a positioning and reinforcing device for a cable-stayed bridge cable guide 6 is provided. The method comprises the following steps:
s1: stiffness skeleton 2 mounting: the bottom ends of two groups of upright rods 21 of the stiffness framework 2 are welded on the reinforcing mesh 11 of the bridge girder body 1.
S2: the longitudinal positioning assembly is mounted with the transverse positioning assembly 4: and the chain block 3 is hung on the connecting rod 22; the installation and fixation of the longitudinal positioning component are realized; the supporting plate 43 is fixed on one group of upright rods 21 through two groups of bolt and nut pairs, so that the installation and fixation of the transverse positioning assembly 4 are realized.
After the transverse positioning assembly 4 and the longitudinal positioning assembly are installed, the supporting rods 23 are welded between the two groups of vertical rods 21 in a split mode, in the embodiment, the supporting rods 23 are angle irons, a graduated scale 24 is fixedly connected to the upper surface of each supporting rod 23, and the length direction of each graduated scale 24 is parallel to the length direction of each supporting rod 23.
S3: hoisting the cable duct 6: the cable guide pipe 6 is moved between two groups of upright posts 21 of the stiff framework 2, and the hooks on the chain blocks 3 of the two groups are respectively hooked with two groups of lug plates 61, so that the cable guide pipe 6 is lifted by the chain blocks 3.
After the cable duct 6 is lifted by the chain block 3, a reference line parallel to the theoretical axis of the cable duct 6 is made at the middle of the periphery of the top of the cable duct 6.
S4: the clamping piece 25 is installed: the bottom ends of two groups of clamping connection rods 251 are respectively hinged on two groups of upright rods 21 through pins 252, and the two groups of clamping connection rods 251 are crossed to form an X shape; the specific operation steps are as follows:
s4.1: holes for the pins 252 to penetrate are drilled on the clamping rod 251 and the upright rod 21;
s4.2: the clamping rod 251 is moved to enable the holes of the clamping rod 251 and the vertical rod 21 to be opposite, the pin 252 is sequentially penetrated into the holes of the clamping rod 251 and the vertical rod 21, the anti-drop nut is screwed into the tail end of the pin 252, and the steps are repeated until the installation of the other group of clamping rods 251 is completed.
S4.3: swinging the two sets of clamping bars 251 causes the two sets of clamping bars 251 to be arranged in a crossing manner.
It should be noted that, in the operation of step S4.2, the positions of the two sets of clamping bars 251 should be adjusted so that the two adjacent sides of the two sets of clamping bars 251 can be abutted against each other after the two sets of clamping bars 251 cross each other.
After the two groups of clamping rods 251 are installed, driving components are installed on the two groups of vertical rods 21, the driving components correspond to the clamping rods 251 of the adjacent vertical rods 21 one by one, each driving component comprises a connecting plate 5, and the connecting plates 5 are fixed on the vertical rods 21 through a plurality of bolt and nut pairs, so that the connecting plates 5 are detachably connected to the vertical rods 21; the connecting plates 5 are vertically threaded and provided with driving screws 51 in a penetrating manner, the axial direction of the driving screws 51 is vertical to the length direction of the vertical rods 21, and one end, away from the connecting plates 5, of each driving screw 51 is abutted with the movable end of the corresponding driving screw 51 so as to prop up the corresponding clamping connection rod 251. The two sets of clamping bars 251 can be driven to swing by rotating the two sets of driving screws 51.
The end of the driving screw rod 51 far away from the connecting plate 5 is arranged in a hemispherical shape, so that friction force between the driving screw rod 51 and the clamping connection rod 251 is reduced, and the driving screw rod 51 can drive the clamping connection rod 251 to swing more smoothly.
S5: coarse positioning of the cable duct 6: the cable guide 6 is moved to the approximate position by the co-operating total station and by the longitudinal and transverse positioning assemblies 4.
When the transverse position of the cable guide tube 6 is adjusted through the transverse positioning assembly 4, a certain scale on the scale 24 is used as a reference point, the adjusting screw 42 is rotated to drive the cable guide tube 6 to move until the cable guide tube 6 moves to the position that the reference line coincides with the reference point on the scale 24, and the adjustment of the transverse position of the cable guide tube 6 is realized.
S6: the two groups of driving screws 51 are rotated, and the two groups of clamping rods 251 are driven to swing upwards by the two groups of driving screws 51 until the two groups of clamping rods 251 are abutted with the bottom of the cable guide pipe 6.
S7: fine positioning of the cable duct 6: matching with the total station and continuing to rotate the two groups of driving screws 51; the corresponding clamping bars 251 are respectively swung by the two groups of driving screws 51 until the cable guide 6 is moved to a specified position. In the process of driving the cable guide 6 to move by swinging the two groups of clamping rods 251, the chain block 3 should be adjusted in time, so that the chain block 3 and the chain block connected with the cable guide 6 are in a tight state.
S8: the joint of the two groups of clamping connection rods 251 and the joint of the clamping connection rods 251 and the upright rod 21 are welded and fixed. The cable guide pipes 6 are limited to shift through the two groups of clamping rods 251, so that the subsequent cable guide pipes 6 can be more accurately formed on the bridge girder body 1.
According to the application, the cable guide tube 6 is limited by utilizing the X-shaped formed by the crossing of the two groups of clamping rods 251, so that the cable guide tube 6 is not easy to deviate in the subsequent beam pouring process. Meanwhile, when the position of the cable duct 6 is regulated, after the cable duct 6 is moved to the approximate position by the transverse positioning assembly 4 and the longitudinal positioning assembly, the cable duct 6 is driven to be positioned at the designated position by swinging the two groups of clamping rods 251 through the two groups of driving assemblies, so that the condition that the cable duct 6 needs to be repeatedly positioned due to the fact that the cable duct 6 is easy to shake by the chain block 3 when the cable duct 6 is regulated through the chain block 3 is effectively reduced, and the positioning and the reinforcement of the cable duct 6 are conveniently and rapidly realized.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (3)
1. A construction method of a cable-stayed bridge cable guide pipe positioning and reinforcing device is characterized by comprising the following steps: the utility model provides a cable-stayed bridge cable pipe location reinforcing apparatus, includes a plurality of stiffness skeletons (2) of vertical fixing on the reinforcing bar of bridge beam body (1), a plurality of stiffness skeletons (2) are evenly distributed along the extending direction of cable pipe (6), all be provided with on stiffness skeletons (2) and be used for adjusting the longitudinal positioning subassembly of cable pipe (6) longitudinal position, be used for adjusting the transverse positioning subassembly (4) of cable pipe (6) transverse position, and be used for limiting the joint piece (25) of cable pipe (6) displacement; the longitudinal positioning assembly is connected with the cable guide pipe (6) to hoist the cable guide pipe (6), the clamping piece (25) comprises two groups of clamping rods (251) fixed on the stiff framework (2), the two groups of clamping rods (251) are crossed to form an X shape, and the cable guide pipe (6) is clamped in a V-shaped opening formed by the two groups of clamping rods (251) in a crossing mode;
the longitudinal positioning assembly comprises a chain block (3) arranged at the top of the stiff framework (2), and the cable guide pipe (6) is hoisted on the stiff framework (2) through the chain block (3); the transverse positioning assembly (4) comprises a threaded sleeve (41) horizontally arranged on one side of the stiff framework (2), the axis of the threaded sleeve (41) is vertical to the axis of the cable guide pipe (6), the threaded sleeve (41) is opposite to the cable guide pipe (6), and the threaded sleeve (41) is coaxially connected with an adjusting screw (42) in a threaded manner;
the stiff framework (2) comprises two groups of vertical rods (21) which are vertically arranged, connecting rods (22) are further arranged at the top ends of the vertical rods (21), and two ends of each connecting rod (22) are respectively connected with the two groups of vertical rods (21) in a opposite pulling mode; a supporting plate (43) is fixed on the periphery of the threaded sleeve (41), and the supporting plate (43) is fixed on the vertical rod (21) through a bolt and nut pair;
a construction method of a cable-stayed bridge cable guide pipe positioning and reinforcing device comprises the following steps:
s1: and (3) mounting a stiff framework (2): welding the bottom ends of two vertical rods (21) of the stiffness framework (2) on a reinforcing mesh (11) of a bridge girder body (1);
s2: the longitudinal positioning assembly and the transverse positioning assembly (4) are installed: the chain block (3) is hung on the connecting rod (22); fixing a supporting plate (43) on one group of upright rods (21) of the stiff framework (2) through bolt and nut pairs;
s3: hoisting the cable duct (6): the cable guide pipe (6) is moved into between two groups of upright rods (21) of the stiff framework (2) and the cable guide pipe (6) is lifted by the chain block (3);
s4: and (3) mounting a clamping piece (25): the bottom ends of the two groups of clamping connection rods (251) are respectively hinged on the two groups of vertical rods (21) through pins (252) and the two groups of clamping connection rods (251) are crossed to form an X shape;
s5: coarse positioning of the cable duct (6): moving the cable guide tube (6) to an approximate position by matching with the total station and through the longitudinal positioning assembly and the transverse positioning assembly (4);
s6: swinging the two groups of clamping rods (251) until the two groups of clamping rods (251) are all abutted with the bottom of the cable guide pipe (6);
s7: fine positioning of the cable duct (6): matching with the total station and continuing to swing the two groups of clamping rods (251) until the cable guide pipe (6) is moved to a designated position;
s8: welding and fixing the intersection of the two groups of clamping connection rods (251) and the hinging position of the clamping connection rods (251) and the vertical rod (21);
in the step S2, after the longitudinal positioning assembly and the transverse positioning assembly (4) are installed, a supporting rod (23) is welded between adjacent vertical rods (21) in a split mode, and a graduated scale (24) is fixed on the supporting rod (23);
in the step S3, after the cable guide pipe (6) is lifted by the chain block (3), a reference line parallel to the theoretical axis of the cable guide pipe (6) is made in the middle of the periphery of the top of the cable guide pipe (6);
in the step S5, when the transverse position of the cable guide tube (6) is adjusted through the transverse positioning assembly (4), a certain scale on the graduated scale (24) is used as a reference point, and the cable guide tube (6) is driven to move through rotating the adjusting screw (42) until a reference line on the cable guide tube (6) coincides with the reference point on the graduated scale (24);
in step S4, after two groups of clamping rods (251) are respectively hinged to two groups of vertical rods (21) and the two groups of clamping rods (251) are crossed to form an X shape, driving components are installed on the two groups of vertical rods (21), the driving components correspond to the clamping rods (251) on the adjacent vertical rods (21), each driving component comprises a connecting plate (5) arranged on the vertical rod (21), each connecting rod (22) is threaded with a driving screw rod (51), and one end, far away from the connecting plate (5), of each driving screw rod (51) is abutted to the movable end of the corresponding clamping rod (251) so as to prop up the corresponding clamping rod (251).
2. The construction method of the cable-stayed bridge cable guide pipe positioning and reinforcing device according to claim 1, wherein the construction method comprises the following steps: the driving screw rod (51) is arranged in a hemispherical shape towards one end of the corresponding clamping connection rod (251).
3. The construction method of the positioning and reinforcing device for the cable-stayed bridge cable guide pipe (6) according to claim 1, which is characterized in that: in step S4, when the clamping rod (251) is installed, holes for the pins (252) to penetrate are drilled on the clamping rod (251) and the vertical rod (21); the clamping rod (251) is moved to enable the holes of the clamping rod (251) and the vertical rod (21) to be opposite, the pin (252) is sequentially penetrated into the holes of the clamping rod (251) and the vertical rod (21), and the anti-drop nut is screwed into the tail end of the pin (252).
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| CN202211380626.0A CN115613467B (en) | 2022-11-04 | 2022-11-04 | Cable-stayed bridge cable guide pipe positioning and reinforcing device and construction method |
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| CN202211380626.0A CN115613467B (en) | 2022-11-04 | 2022-11-04 | Cable-stayed bridge cable guide pipe positioning and reinforcing device and construction method |
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| CN115613467B true CN115613467B (en) | 2023-10-20 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101151963B1 (en) * | 2011-12-28 | 2012-06-01 | (주) 화창 | Tube supporting device for bridge |
| CN203160133U (en) * | 2013-03-12 | 2013-08-28 | 中铁四局集团第二工程有限公司 | Three-dimensional combined accurate positioning device for stayed-cable bridge body cable duct |
| CN206267025U (en) * | 2016-11-29 | 2017-06-20 | 中交第二航务工程局有限公司 | A kind of Spatial Cable catheter positioning control device |
| CN109356436A (en) * | 2018-11-15 | 2019-02-19 | 陕西宏象房车科技发展有限公司 | The On-vehicle tent that can quickly take down the exhibits |
| CN110259260A (en) * | 2019-05-27 | 2019-09-20 | 北京柏拉途户外用品有限公司 | Electric foldable roof tent |
| CN113529571A (en) * | 2021-07-26 | 2021-10-22 | 中铁一局集团(广州)建设工程有限公司 | Positioning device for rhombic wire-separating pipe cable saddle of short-tower cable-stayed bridge |
| CN217078426U (en) * | 2021-12-15 | 2022-07-29 | 中铁十六局集团第一工程有限公司 | Bridge cable guide pipe positioning device |
-
2022
- 2022-11-04 CN CN202211380626.0A patent/CN115613467B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101151963B1 (en) * | 2011-12-28 | 2012-06-01 | (주) 화창 | Tube supporting device for bridge |
| CN203160133U (en) * | 2013-03-12 | 2013-08-28 | 中铁四局集团第二工程有限公司 | Three-dimensional combined accurate positioning device for stayed-cable bridge body cable duct |
| CN206267025U (en) * | 2016-11-29 | 2017-06-20 | 中交第二航务工程局有限公司 | A kind of Spatial Cable catheter positioning control device |
| CN109356436A (en) * | 2018-11-15 | 2019-02-19 | 陕西宏象房车科技发展有限公司 | The On-vehicle tent that can quickly take down the exhibits |
| CN110259260A (en) * | 2019-05-27 | 2019-09-20 | 北京柏拉途户外用品有限公司 | Electric foldable roof tent |
| CN113529571A (en) * | 2021-07-26 | 2021-10-22 | 中铁一局集团(广州)建设工程有限公司 | Positioning device for rhombic wire-separating pipe cable saddle of short-tower cable-stayed bridge |
| CN217078426U (en) * | 2021-12-15 | 2022-07-29 | 中铁十六局集团第一工程有限公司 | Bridge cable guide pipe positioning device |
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| CN115613467A (en) | 2023-01-17 |
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