CN214737390U - Positioning device for mounting anchor plate of steel beam cable-stayed bridge - Google Patents
Positioning device for mounting anchor plate of steel beam cable-stayed bridge Download PDFInfo
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- CN214737390U CN214737390U CN202120738968.XU CN202120738968U CN214737390U CN 214737390 U CN214737390 U CN 214737390U CN 202120738968 U CN202120738968 U CN 202120738968U CN 214737390 U CN214737390 U CN 214737390U
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Abstract
The utility model provides a positioner that is used for steel beam cable-stay bridge anchor plate to install belongs to bridge engineering construction technical field. The device comprises an extension straight rod, three positioning telescopic rods and a rod end measuring device. The extending straight rod is used for penetrating through the anchor pipe on the anchor pulling plate and is abutted to the top plate of the steel beam through one end. One end of each of the three positioning telescopic rods is vertically connected with the extending straight rod, and the three positioning telescopic rods are circumferentially spaced around the axis of the extending straight rod and extend along the radial direction of the extending straight rod. The rod end measuring device is installed at the other end of the extending straight rod, and the positioning device is configured to be capable of extending the spatial coordinates of a point where one end of the straight rod abuts against the top plate of the steel beam through the rod end measuring device. The positioning device can improve the positioning and mounting precision of the anchor plate and the inhaul cable.
Description
Technical Field
The utility model relates to a bridge engineering construction technical field, in particular to a positioner that is used for steel beam cable-stay bridge anchor plate to install.
Background
The steel beam cable-stayed bridge has become the mainstream structure form of the large-span cable-stayed bridge due to the advantages of light weight, easy guarantee of factory manufacturing quality, short installation and manufacturing period and the like. The stay cable anchoring area is used as a structure for directly bearing and transmitting the tension of the stay cable, and the construction quality of the stay cable anchoring area is related to the structural safety of the full bridge. The anchor plate type cable end anchoring structure consists of an anchor backing plate, a bearing plate, a sleeve, a pulling plate, a stiffening plate and a reinforcing plate, is convenient to construct and maintain on a bridge floor, has larger space and better working conditions when manufacturing the anchor plate, and is easy to ensure the quality of a welding seam, so the anchor plate type cable-stayed bridge is a type which is widely applied to the existing steel beam cable-stayed bridge.
The anchor plate is used as a key part of the full-bridge stress, the requirements on the construction quality and the precision are extremely high, and the central axis of the anchor plate must be overlapped with the central line of the corresponding inhaul cable.
Because cable-stay bridge cable all has certain inclination to all to longitudinal bridge and horizontal bridge usually, to both space orientation degree of difficulty great to cable and anchor plate when carrying out the installation, often need repeatedly to anchor plate and girder steel between the installation angle measure and rectify, waste time and energy.
SUMMERY OF THE UTILITY MODEL
The embodiment of the disclosure provides a positioning device for mounting an anchor plate of a steel beam cable-stayed bridge, which can improve the positioning and mounting precision of the anchor plate and a cable. The technical scheme is as follows:
the embodiment of the disclosure provides a positioner that is used for steel beam cable-stay bridge anchor plate to install, includes:
the extension straight rod is used for penetrating through the anchor pipe on the anchor pulling plate and is abutted with the top plate of the steel beam through one end;
one end of each positioning telescopic rod is vertically connected with the extending straight rod, and the three positioning telescopic rods are circumferentially spaced around the axis of the extending straight rod and extend along the radial direction of the extending straight rod;
and the positioning device is configured to extend the space coordinates of the point where one end of the straight rod is abutted against the top plate of the steel beam through the rod end measuring device.
Optionally, the three positioning telescopic rods are arranged at equal angular intervals.
Optionally, the positioning telescopic rod comprises a first pipe section, a second pipe section and a screw adjuster, the first pipe section is connected with the extending straight rod, one end of the first pipe section, which is far away from the extending straight rod, is provided with a first telescopic hole extending along the axial direction, the second pipe section is telescopically installed in the first telescopic hole through the screw adjuster, and the positioning telescopic rod is configured to be capable of adjusting the length of the second pipe section, which extends out of the first telescopic hole, by screwing the screw adjuster.
Optionally, one end of the second pipe section, which is far away from the first pipe section, is provided with a pulley, and a rotating shaft of the pulley is perpendicular to the first pipe section and the extending straight rod.
Optionally, the extension straight rod includes a third tube section and a fourth tube section, one end of the third tube section has a second telescopic hole extending along the axial direction, the fourth tube section is telescopically and coaxially installed in the second telescopic hole, and the three positioning telescopic rods are connected to the third tube section.
Optionally, the positioning device further comprises an elastic cushion cap, and the elastic cushion cap is sleeved at one end, far away from the third pipe section, of the fourth pipe section.
Optionally, the rod end measurement device is a prism gauge.
Optionally, the elongate rod is a stainless steel rod.
The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:
firstly, an extension angle between an anchor plate and a top plate of a steel beam, the length of a guy cable matched with the anchor plate and the coordinate of a theoretical connection point after the top plate is connected with the guy cable are given through a design drawing. The extending straight rod penetrates through the anchor pipe on the anchor plate until one end of the extending straight rod is abutted to the top plate, so that one end of the extending straight rod is overlapped with a theoretical connection point after the top plate is connected with the inhaul cable. Then, the lengths of the three positioning telescopic rods arranged on the extension straight rod at intervals in the circumferential direction are adjusted to be equal, and the three positioning telescopic rods are all abutted and tightly pushed against the inner wall of the anchor pipe. The extension straight rod is positioned through the three positioning telescopic rods with the same length, so that the extension straight rod is ensured to be overlapped with the axis of the anchor pipe all the time, and the relative position of the inhaul cable and the anchor plate after the inhaul cable and the anchor plate are connected in a matched mode is simulated. And finally, measuring the space coordinate of the end point of one end, abutted to the top plate, of the extending straight rod through a rod end measuring device at the other end of the extending straight rod, comparing the space coordinate with the coordinate of a theoretical connecting point, and finely adjusting the extending angle between the anchor plate and the top plate according to the numerical deviation to realize the matching of the space position of the anchor plate relative to the top plate and the design state of a design drawing. The positioning device is simple in structure and convenient to operate, the measurement and correction of the installation angle between the anchor plate and the top plate are converted into the measurement of the end part coordinate of the extending straight rod, and the positioning and installation speed of the anchor plate and the inhaul cable can be effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a side structural sectional view of a positioning device for mounting an anchor plate of a cable-stayed bridge of a steel beam according to an embodiment of the disclosure;
fig. 2 is a partial structural schematic view of a positioning device for mounting an anchor plate of a cable-stayed bridge of a steel beam according to an embodiment of the disclosure;
FIG. 3 is a schematic view of a partial structure of an extending straight rod provided in the embodiment of the present disclosure;
fig. 4 is a schematic partial structural view of a positioning telescopic rod provided in the embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
The anchor plate is used as a key part of the full-bridge stress, the requirements on the construction quality and the precision are extremely high, and the central axis of the anchor plate must be overlapped with the central line of the corresponding inhaul cable.
Because cable-stay bridge cable all has certain inclination to all to longitudinal bridge and horizontal bridge usually, to both space orientation degree of difficulty great to cable and anchor plate when carrying out the installation, often need repeatedly to anchor plate and girder steel between the installation angle measure and rectify, waste time and energy.
Fig. 1 is a side structural section view of a positioning device for mounting an anchor plate of a cable-stayed bridge of a steel beam according to an embodiment of the disclosure. Fig. 2 is a partial structural schematic view of a positioning device for installing an anchor plate of a cable-stayed bridge of a steel beam according to an embodiment of the disclosure. Fig. 3 is a schematic partial structure view of an extending straight rod provided in an embodiment of the present disclosure. Fig. 4 is a schematic partial structural view of a positioning telescopic rod provided in the embodiment of the present disclosure. As shown in fig. 1 to 4, by practice, the inventor provides a positioning device for mounting an anchor plate of a steel beam cable-stayed bridge, which comprises an extending straight rod 100, three positioning telescopic rods 200 and a rod end measuring device 300.
Wherein, the extension straight rod 100 is used for passing through the anchor pipe a1 on the anchor plate a and abutting with the top plate b1 of the steel beam b through one end. One end of each of the three positioning telescopic rods 200 is vertically connected to the extending straight rod 100, and the three positioning telescopic rods 200 are circumferentially spaced around the axis of the extending straight rod 100 and extend along the radial direction of the extending straight rod 100. The rod end measuring device 300 is installed at the other end of the extending straight rod 100, and the positioning device is configured to be able to extend the spatial coordinates of the point where one end of the straight rod 100 abuts against the top plate b1 of the steel beam b through the rod end measuring device 300.
In the embodiment of the disclosure, when the anchor plate a and the matched inhaul cable need to be positioned and installed. Firstly, the extension angle between the anchor plate a and the top plate b1 of the steel beam b, the length of a guy cable matched with the anchor plate a and the coordinates of a theoretical connection point after the top plate b1 is connected with the guy cable are given according to a design drawing. One end of the extending straight rod 100 is overlapped with the theoretical connection point of the top plate b1 and the inhaul cable after the extending straight rod 100 passes through the anchor pipe a1 on the anchor plate a until one end of the extending straight rod 100 is abutted to the top plate b 1. Then, the lengths of the three positioning telescopic rods 200 which are circumferentially arranged on the extension straight rod 100 at intervals are adjusted to enable the lengths of the three positioning telescopic rods 200 to be equal and to be abutted and propped against the inner wall of the anchor pipe a 1. The extension straight rod 100 is positioned by the three positioning telescopic rods 200 with the same length, so that the extension straight rod 100 is always overlapped with the axis of the anchor pipe a1, and the relative position of the inhaul cable and the anchor plate a after the inhaul cable and the anchor plate a are connected in a matched mode is simulated. Finally, the space coordinate of the end point of one end of the extending straight rod 100, which is in contact with the top plate b1, is measured through the rod end measuring device 300 positioned at the other end of the extending straight rod 100, the space coordinate is compared with the coordinate of a theoretical connection point, the extending angle between the anchor plate a and the top plate b1 is finely adjusted according to the numerical deviation, and the space position of the anchor plate a relative to the top plate b1 is matched with the design state of the design drawing. The positioning device is simple in structure and convenient to operate, the measurement and correction of the installation angle between the anchor plate a and the top plate b1 are converted into the measurement of the end part coordinates of the extending straight rod 100, and the positioning and installation speed of the anchor plate a and the inhaul cable can be effectively improved.
Optionally, three positioning telescopic rods 200 are arranged at equal angular intervals. Exemplarily, in the embodiment of the present disclosure, three positioning telescopic rods 200 are arranged at an interval of 120 ° included angles, so that a user can conveniently insert a hand between two positioning telescopic rods 200 to manually adjust the length of the positioning telescopic rods 200, thereby further improving the positioning and mounting speed of the anchor plate a and the cable.
Optionally, the positioning telescopic rod 200 includes a first pipe segment 210, a second pipe segment 220 and a screw adjuster 230, the first pipe segment 210 is connected to the extending straight rod 100, an end of the first pipe segment 210 away from the extending straight rod 100 has a first telescopic hole 211 extending in an axial direction, the second pipe segment 220 is telescopically installed in the first telescopic hole 211 through the screw adjuster 230, and the positioning telescopic rod 200 is configured to be able to adjust a length of the second pipe segment 220 extending out of the first telescopic hole 211 by screwing the screw adjuster 230. Illustratively, in the embodiment of the present disclosure, the inner wall of the first telescopic hole 211 has an internal thread, the outer sidewall of the second pipe segment 220 has an external thread matching the internal thread, and the second pipe segment 220 is screwed into the first telescopic hole 211 by the screw adjuster 230. The staff realizes the twist-in and twist-out of second pipe section 220 through twisting screw adjuster 230, and then the length of accurate regulation positioning telescopic link 200 has improved positioner's location accuracy.
Optionally, one end of the second tube segment 220 away from the first tube segment 210 is provided with a pulley 221, and a rotating shaft of the pulley 221 is perpendicular to the first tube segment 210 and the extending straight rod 100. Illustratively, in the disclosed embodiment, when the length of the anchor tube a1 is long, it is difficult for a worker to insert a hand into the positioning telescopic rod 200 to adjust after the straight extension rod 100 is inserted into the anchor tube a 1. Through the pulley 221 arranged at the end of the second pipe section 220 far away from the first pipe section 210, since the rolling friction is far smaller than the sliding friction, a worker can preferably adjust the lengths of the three positioning telescopic rods 200 to the right position, and then stretch the extension straight rod 100 into and through the anchor pipe a1, at this time, after the three second pipe sections 220 are in contact with the inner wall of the anchor pipe a1, the extension straight rod 100 can be smoothly stretched into the anchor pipe a1 while the positioning of the extension straight rod 100 is ensured. Further improving the positioning and mounting speed of the anchor pulling plate a and the inhaul cable.
Optionally, the extending straight rod 100 comprises a third tube segment 110 and a fourth tube segment 120, one end of the third tube segment 110 has a second telescopic hole 111 extending along the axial direction, the fourth tube segment 120 is telescopically and coaxially installed in the second telescopic hole 111, and the three positioning telescopic rods 200 are connected to the third tube segment 110. Illustratively, in the embodiment of the present disclosure, by adjusting the coaxial extension and contraction of the fourth pipe segment 120 relative to the third pipe segment 110, the length of the extension straight rod 100 can be adjusted to adaptively position the anchor plates a with different sizes. Meanwhile, when the positioning device is not used, the fourth pipe section 120 can be completely contracted into the third pipe section 110, so that the occupied volume of the extending straight rod 100 is reduced, the storage is convenient, and the practicability of the positioning device is improved.
Optionally, the positioning device further comprises an elastic pad cap 400, and the elastic pad cap 400 is sleeved on one end of the fourth pipe segment 120 far away from the third pipe segment 110. Illustratively, in the embodiment of the present disclosure, an elastic pad cap 400 is sleeved on an end of the fourth pipe segment 120 away from the third pipe segment 110, that is, an end abutting against the top plate b1 of the steel beam b. The end part of the extending straight rod 100 is prevented from being abraded after long-time use, and the service life of the positioning device is prolonged.
Alternatively, rod end measuring device 300 is a prism gauge. Exemplarily, in the embodiment of the present disclosure, the cross wire of the prism measuring instrument is disposed on the axis of the extending straight bar 100.
Optionally, the extended straight rod 100 is a stainless steel rod. Illustratively, in the embodiments of the present disclosure, the stainless steel has good toughness, heat resistance, uniform material quality, and high mechanical strength. The extending straight rod 100 made of stainless steel is adopted, so that the service life and the bearing capacity of the positioning device can be effectively improved. Meanwhile, the stainless steel has good plasticity, convenient processing and short manufacturing period, and can reduce the processing cost.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.
The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.
Claims (8)
1. A positioning device for mounting an anchor plate of a steel beam cable-stayed bridge is characterized by comprising a positioning device;
the extension straight rod is used for penetrating through the anchor pipe on the anchor pulling plate and is abutted with the top plate of the steel beam through one end;
one end of each positioning telescopic rod is vertically connected with the corresponding extending straight rod, and the three positioning telescopic rods are circumferentially spaced around the axis of the corresponding extending straight rod and extend along the radial direction of the corresponding extending straight rod;
a rod end measuring device installed at the other end of the extending straight rod, the positioning device being configured to be able to pass through spatial coordinates of a point where one end of the extending straight rod abuts against a top plate of the steel beam by the rod end measuring device.
2. The positioning device for the anchor plate installation of the cable-stayed bridge of the steel beam as claimed in claim 1, wherein the three positioning telescopic rods are arranged at equal angular intervals.
3. The positioning device for installing the anchor plate of the cable-stayed bridge of the steel beam as claimed in claim 2, wherein the positioning telescopic rod comprises a first pipe section, a second pipe section and a screw adjuster, the first pipe section is connected with the extending straight rod, one end of the first pipe section, which is far away from the extending straight rod, is provided with a first telescopic hole extending along the axial direction, the second pipe section is telescopically installed in the first telescopic hole through the screw adjuster, and the positioning telescopic rod is configured to adjust the length of the second pipe section, which extends out of the first telescopic hole, by screwing the screw adjuster.
4. The positioning device for the anchor plate installation of a cable-stayed bridge of a steel beam as claimed in claim 3, wherein a pulley is arranged at one end of the second pipe section far away from the first pipe section, and a rotating shaft of the pulley is perpendicular to the first pipe section and the extending straight rod.
5. A positioning device for the anchor plate installation of a cable-stayed bridge of a steel beam as claimed in claim 4, wherein the extension straight rod comprises a third pipe section and a fourth pipe section, one end of the third pipe section is provided with a second telescopic hole extending along the axial direction, the fourth pipe section is telescopically and coaxially installed in the second telescopic hole, and the three positioning telescopic rods are connected to the third pipe section.
6. The positioning device for the anchor plate installation of a cable-stayed bridge of a steel beam as claimed in claim 5, wherein the positioning device further comprises an elastic cushion cap, and the elastic cushion cap is sleeved at one end of the fourth pipe section, which is far away from the third pipe section.
7. A positioning device for the anchor plate mounting of a cable-stayed bridge of a steel beam as claimed in claim 6, wherein the rod end measuring device is a prism measuring instrument.
8. A positioning device for the anchor plate of a cable-stayed bridge of a steel beam as claimed in claim 7, wherein the extension straight rod is a stainless steel rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120738968.XU CN214737390U (en) | 2021-04-10 | 2021-04-10 | Positioning device for mounting anchor plate of steel beam cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120738968.XU CN214737390U (en) | 2021-04-10 | 2021-04-10 | Positioning device for mounting anchor plate of steel beam cable-stayed bridge |
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| CN214737390U true CN214737390U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120738968.XU Active CN214737390U (en) | 2021-04-10 | 2021-04-10 | Positioning device for mounting anchor plate of steel beam cable-stayed bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250715A (en) * | 2022-02-15 | 2022-03-29 | 中铁二局集团有限公司 | Method and device for positioning space special-shaped steel arch bridge inhaul cable |
| CN115928586A (en) * | 2022-12-05 | 2023-04-07 | 广西路桥工程集团有限公司 | A method for installing the anchor cable casing of a suspension bridge |
-
2021
- 2021-04-10 CN CN202120738968.XU patent/CN214737390U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250715A (en) * | 2022-02-15 | 2022-03-29 | 中铁二局集团有限公司 | Method and device for positioning space special-shaped steel arch bridge inhaul cable |
| CN114250715B (en) * | 2022-02-15 | 2024-04-26 | 中铁二局集团有限公司 | Positioning method and positioning device for space special-shaped steel arch bridge inhaul cable |
| CN115928586A (en) * | 2022-12-05 | 2023-04-07 | 广西路桥工程集团有限公司 | A method for installing the anchor cable casing of a suspension bridge |
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