CN115045190A - Steel anchor box mounting mechanism and mounting method - Google Patents
Steel anchor box mounting mechanism and mounting method Download PDFInfo
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- CN115045190A CN115045190A CN202210615866.8A CN202210615866A CN115045190A CN 115045190 A CN115045190 A CN 115045190A CN 202210615866 A CN202210615866 A CN 202210615866A CN 115045190 A CN115045190 A CN 115045190A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 169
- 239000010959 steel Substances 0.000 title claims abstract description 169
- 230000007246 mechanism Effects 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 claims abstract description 68
- 230000005484 gravity Effects 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims description 19
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000013507 mapping Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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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
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Abstract
The invention provides a steel anchor box installation mechanism, which comprises: the support part is constructed with a frame body which is arranged in a hollow way and can support the height of the steel anchor box based on the installation position of the steel anchor box; the positioning part is constructed at the gravity center position of the steel anchor box; the positioning part can enable the steel anchor box to be hung on the supporting part to be inclined and vertically placed when the positioning part is installed. The invention also provides an installation method of the installation mechanism for the steel anchor box. The steel anchor box mounting mechanism is simple in structure and easy to adjust, local control is achieved, full-node placement and positioning mounting are assisted, and positioning and fixing of the steel anchor box can be accurately adjusted. Meanwhile, in the installation process, batch steel anchor boxes can be roughly installed in place, and then the whole total station is accurately adjusted, so that the installation efficiency and the adjustment accuracy are improved, and the space accuracy can be controlled within 5 mm.
Description
Technical Field
The invention belongs to the technical field of bridge steel structure installation, and particularly relates to a steel anchor box installation mechanism and an installation method.
Background
At present, most of bridges adopt arch bridges, a suspender is a necessary device for connecting arch ribs to a bridge floor, the self weight of a structure is reduced by generally adopting a form of combining steel and concrete with a bridge, the bridge floor is of a concrete structure, the arch ribs are generally of a steel structure, a lower anchor box becomes an important part for connection, the steel and concrete structure is formed between the bridge floors and serves as an important component connected with the suspender, and the installation precision of the suspender has important influence on the tensioning stress of the suspender. The traditional installation device is complex in structure and old in technology, lofting is still carried out in a mode of arranging a measuring net, and a mode of powder lines and line drops is used as an auxiliary mode, so that multiple machines and tools are needed when the steel anchor box is installed on site, the precision is low, the installation is complex, the reinforcing stability is poor, the whole installation efficiency is very low, and the working process and the production cost are seriously influenced.
Disclosure of Invention
The invention provides a steel anchor box mounting mechanism and a mounting method, and solves the technical problems of high overall production cost caused by complexity, poor stability and low arrangement precision of the conventional steel anchor box mounting mechanism.
In order to solve at least one technical problem, the technical scheme adopted by the invention is as follows:
a steel anchor box installation mechanism comprises:
the support part is constructed with a frame body which is arranged in a hollow way and can support the height of the steel anchor box based on the installation position of the steel anchor box;
the positioning part is constructed at the gravity center position of the steel anchor box;
the positioning part can enable the steel anchor box to be hung on the supporting part to be inclined and vertically placed when the positioning part is installed.
Furthermore, the frame body is a hollow square frame, and is provided with a plurality of layers of frame rings arranged in parallel and upright rods for connecting angular points of the frame rings;
the upper end of the upright rod is also provided with a support plate which is arranged in an alignment way, and the support plate is arranged on the shorter side surface of the frame body.
Furthermore, all the frame rings are horizontally arranged and adjacent frame rings are arranged at intervals.
Furthermore, the spacing height of two frame rings arranged on the uppermost layer is smaller than that of two adjacent frame rings below the two frame rings;
and the other frame rings of the two frame rings arranged on the uppermost layer are distributed with equal height.
Further, the height of the upright is higher than the height of the supporting plate;
the number of the upright rods is not less than the number of the corner points of the frame ring.
Furthermore, the support plate extends outwards along the length direction of the support plate.
Furthermore, all the lower end faces of the vertical rods are provided with gaskets.
Further, the positioning parts are constructed into oppositely arranged clamping plates which are all arranged along the longer width direction in the cross section of the frame body;
the clamping plates are fixedly arranged on two sides of the width of the steel frame plate of the steel anchor box and are arranged in a crossed mode with the length of the supporting plate.
The steel anchor box comprises a supporting plate, a steel anchor box body and a frame ring, and is characterized by further comprising an adjusting part arranged at one end, close to the inclined end of the head of the steel anchor box, of the supporting plate, wherein the upper end face of the adjusting part is used for abutting against an ear platform in the steel anchor box, so that a contact point of the steel anchor box and the adjusting part, the gravity center of the steel anchor box and a contact point of the steel anchor box and the frame ring are all located on the same straight line.
A method for installing a steel anchor box adopts the installation mechanism as described in any one of the above steps, and comprises the following steps:
s1, establishing a three-dimensional entity model;
modeling the steel anchor box based on a BIM technology to form a three-dimensional solid model;
setting the installation positions of the steel anchor boxes based on drawing requirements, and converting the global control coordinates of all the steel anchor boxes into a physical model to form local control coordinates;
inputting the coordinate data of the corresponding steel anchor box section into the solid model based on the data of the mileage number coordinate values in the drawing, and inputting the coordinate values in the field mapping network into the solid model to form model data under a global coordinate system;
s2, mounting and positioning;
determining a position control point of the installation mechanism and a relative position control point of the steel anchor box on the installation mechanism in the solid model;
extracting local coordinate information of the position control point of the installation mechanism and the relative position control point of the steel anchor box on the installation mechanism, forming a data table, and lofting the position control point of the installation mechanism and the relative position control point of the steel anchor box on the installation mechanism on a concrete bridge bottom template by using a total station;
aligning and positioning the mounting mechanism according to the released position control point, and fixing the clamping plate in the positioning part at the gravity center height of the steel anchor box and along the length direction of the steel anchor box; meanwhile, the position of a support plate is determined on the mounting mechanism, and the clamping plates in the positioning part are arranged in a way of intersecting and vertical to the support plate in the supporting part, wherein the intersection points are relative position control points of the steel anchor box and the mounting mechanism;
s3, adjusting the position of the steel anchor box;
after the positioning part is adjusted in place, the steel anchor box is hung into the positioning part, the steel anchor box is placed in place according to the relative position control point of the steel anchor box and the installation mechanism, the center of an upper pipe orifice of the steel anchor box is selected as a fine adjustment control point after the positioning part is placed in place, and a total station is used for performing precise adjustment, so that the installation of the steel anchor box is completed.
The steel anchor box installation mechanism and the installation method designed by the invention have the advantages of simple structure, easiness in adjustment, local control, full-node placement and positioning installation, and capability of accurately adjusting the positioning of the steel anchor box and fixing. Meanwhile, in the installation process, batch steel anchor boxes can be roughly installed in place, and then the whole total station is accurately adjusted, so that the installation efficiency and the adjustment accuracy are improved, and the space accuracy can be controlled within 5 mm.
Drawings
FIG. 1 is a perspective view of a steel anchor box according to one embodiment of the present invention;
FIG. 2 is a view of the steel anchor box in combination with a mounting mechanism in accordance with one embodiment of the present invention;
FIG. 3 is a top view of a mounting mechanism in accordance with an embodiment of the present invention;
FIG. 4 is a side view of a support portion according to an embodiment of the present invention;
FIG. 5 is a view of the engagement of the locating portion with the steel anchor box in accordance with one embodiment of the present invention;
FIG. 6 is a schematic diagram of a three-dimensional solid model formed by modeling a steel anchor box based on BIM technology according to an embodiment of the invention;
FIG. 7 is a schematic diagram of the establishment of local coordinates in a three-dimensional solid model of a steel anchor box based on BIM technology according to an embodiment of the invention;
fig. 8 is a schematic diagram of global coordinate transformation in a BIM technology-based steel anchor box three-dimensional solid model according to an embodiment of the present invention.
In the figure:
100. mounting mechanism 200, steel anchor box 10 and supporting part
11. Frame body 12, frame ring 13 and upright rod
14. Support plate 15, auxiliary rod 16, gasket
20. Positioning part 21, clamping plate 30 and adjusting part
40. Center of pipe orifice
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
The present embodiment proposes a mounting mechanism 100 for a steel anchor box 200, wherein the structure of the steel anchor box 200 is shown in fig. 1; the structure of steel anchor housing 200 in cooperation with mounting mechanism 100 is shown in FIG. 2. The mounting structure 100 comprises a support part 10 and a positioning part 20, wherein the support part 10 is configured with a frame body 11 which is arranged in a hollow manner and can support the height of the steel anchor box 200 based on the mounting position of the steel anchor box 200; the positioning part 20 is constructed at the gravity center position of the steel anchor box 200; the positioning part 20 enables the steel anchor box 200 to be hung on the supporting part 10 and to be inclined and erected when being installed.
Specifically, as shown in fig. 3-4, the frame body 11 is a hollow square frame, and is provided with a plurality of layers of frame rings 12 arranged in parallel and upright rods 13 connecting the corner points of the frame rings 12; the upper end of the upright 13 is also provided with a support plate 14 which is arranged in an aligned manner, and the support plate 14 is arranged on the shorter side of the frame body 11. In order to further improve the strength of the frame body 11 and simplify the structure of the support portion 10, preferably, the structure of the frame body 11 is a rectangular frame, that is, the frame ring 12 is also a rectangular structure, and all the upright rods 13 are sequentially connected with the corner points of the frame ring 12, and the structure is not only simple to process, but also has enough space for the steel anchor box 200 to be vertically suspended. And all the frame rings 12 are horizontally arranged and the adjacent frame rings 12 are arranged at intervals, and the multilayer frame rings 12 arranged at intervals are more favorable for the oblique insertion of the steel anchor box 200.
Further, the spacing height of two frame rings 12 arranged at the uppermost layer is smaller than the spacing height of two adjacent frame rings 12 below the uppermost layer; that is, the distance between the frame loop 12 of the first layer and the frame loop 12 of the second layer is smaller than the height distance between the frame loops 12 of the third layer and the fourth layer, counted from top to bottom along the height direction of the vertical rod 13. The strength between the upright rods 13 is higher, and the space between the frame rings 12 of the first layer and the second layer is required to be smaller in order to improve the surrounding strength of the adjacent upright rods 13, so that the stable strength of the whole frame body 11 can be improved, the deformation of the whole frame body can be prevented, and the vertical supporting force of the whole frame body can be further improved.
Meanwhile, in order to further improve the deformation resistance of the middle and lower portions of the frame body 11, it is required that the other frame rings 12 excluding the two frame rings 12 disposed at the uppermost layer are equally highly distributed, that is, all the frame rings 12 at the third layer from the top to the bottom and below are equally highly distributed. Furthermore, auxiliary rods 15 are provided which are reinforced in the middle over the length of the frame ring 12 in the height direction of the vertical rods 13, and the number of vertical rods 13 and auxiliary rods 15 can be set depending on the actual operating conditions.
Preferably, the height of the upright 13 is higher than the position height of the supporting plate 14, and the number of the upright 13 is not less than the number of the corner points of the frame ring 12. That is, in this embodiment, the frame ring 12 is a rectangular structure and has four corner points, and the number of the upright bars 13 is greater than or equal to four corner points of the frame ring 12. Of course, the frame ring 12 may also be a regular polygon structure, and accordingly, the number of the vertical rods 13 is not less than the number of the corner points of the frame ring 12.
Meanwhile, in order to improve the supporting strength of the supporting plate 14 in the supporting portion 10 to the steel anchor box 200 and ensure the stability of placing the steel anchor box 200, the height of the supporting plate 14 is required to be higher than the height of the frame ring 12 of the first layer from top to bottom along the height of the vertical rod 13, that is, the supporting plate 14 is located at the uppermost end of the frame body 11, so that the interference of the steel anchor box 200 during installation and placement can be reduced, and the stability and the safety of installation of the steel anchor box 200 can be improved. And all the supporting plates 14 extend outwards along the length direction thereof, in the embodiment, the supporting plates 14 are angle steels, the vertical surfaces thereof are welded on the outer wall surfaces of the upright rods 13, the horizontal surfaces thereof are arranged outwards, and the horizontally arranged and oppositely arranged supporting plates 14 are beneficial to the installation of the steel anchor box 200.
Further, in order to improve the stability that support body 11 stands vertically, all be equipped with the gasket 16 of the square structure of level setting on the lower terminal surface of all poles of setting, four gaskets 16 mutual independence set up. Of course, in order to further increase the stability of the placement of the spacers 16, the spacers 16 under the four uprights 13 can be arranged in connection with each other.
Further, as shown in fig. 5, the positioning portion 20 is configured as oppositely disposed clamping plates 21, and the clamping plates 21 are arranged along the longer width direction of the cross section of the frame body 11, that is, along the longer width direction of the frame ring 12. Preferably, the clamping plate 21 is also an angle steel, the length of which is greater than the width distance between the oppositely arranged support plates 14, in order to suspend the steel anchor box 200 on the frame body 11. Wherein, the clamping plates 21 are fixedly arranged at both sides of the width of the steel frame plate of the steel anchor box 200 and are arranged crosswise with the length of the supporting plate 14. Before fixed installation, the two clamping plates 21 are relatively fixed in the length direction of the steel anchor box 200, and the position of the clamping plate 21 is located at the gravity center position of the steel anchor box 200 and horizontally and transversely arranged, so that the steel frame plate of the steel anchor box 200 and the clamping plate 21 have a certain included angle.
As shown in fig. 2, the steel anchor box further comprises an adjusting part 30 disposed on the supporting plate 14 near the inclined end of the head of the steel anchor box 200, in this embodiment, the adjusting part 30 is a jack commonly used in engineering construction, and the type or structure of the jack is not limited as long as the jack can extend and contract its height to abut against the lower end face of the lug boss in the steel anchor box 200. The upper end face of adjusting portion 30 is used for propping against the lug in steel anchor box 200 to the contact point that the upper end face of messenger's steel anchor box 200 and adjusting portion 30 is connected, steel anchor box focus and the contact point that steel anchor box 200 strides and leans on at the frame circle 12 and contact with frame circle 12 all are located same straight line, and then can guarantee that steel anchor box 200 steadily and obliquely stands and set up on installation mechanism 100, improves its security and the reliability of installation.
In operation, after the steel anchor box 200 is suspended into the hollow frame surrounded by the frame body 11, the steel frame plate in the steel anchor box 200 is placed obliquely and vertically after crossing over one of the middle frame rings 12, and the clamping plate 21 is placed on the supporting plate 14 and vertically intersected with the supporting plate 14, that is, the center of gravity of the steel anchor box 200 is suspended at the height of the supporting plate 14. Meanwhile, in order to prevent the head of the steel anchor box 200 from tilting, an adjusting part 30 is provided on the heavier side of the head of the steel anchor box 200 as a support, and the adjusting part 30 is placed on the support plate 14 to push against the ear table in the steel anchor box 200, so as to ensure that the steel anchor box 200 is stably inserted obliquely into the mounting mechanism 100.
The steel anchor box mounting mechanism provided by the invention is simple in structure and easy to adjust, and can accurately adjust the positioning of the steel anchor box and fix the steel anchor box; meanwhile, in the installation process, the steel anchor boxes in batches can be roughly installed in place, and then accurate adjustment is assisted, so that the installation efficiency and the adjustment accuracy are improved, and the space accuracy can be controlled within 5 mm.
A method of installing a steel anchor box using the installation mechanism 100 as described in any one of the preceding claims, comprising the steps of:
and S1, establishing a three-dimensional solid model.
The steel anchor box 200 is firstly modeled according to engineering design drawings and based on the BIM technology to form a three-dimensional solid model, and the finally formed solid model is shown in FIG. 6. During modeling, the installation positions of all the steel anchor boxes 200 are required to be distributed relatively and at intervals according to the requirements of a design drawing, and accordingly, each installation mechanism 100 is matched with one steel anchor box 200, and the installation position of the steel anchor box 200 is the position where the installation structure 100 is placed.
And then setting the installation position of the steel anchor box 200 based on the requirements of an engineering design drawing and converting the global control coordinates of all the steel anchor boxes 200 into a physical model to form local control coordinates, wherein the structure is shown in fig. 7.
And then, based on the data of the mileage number coordinate values in the engineering design drawing, inputting the coordinate data of each section of the corresponding steel anchor box 200 into the solid model, and inputting the coordinate values in the site mapping network into the solid model to form model data under a global coordinate system, as shown in fig. 8.
Based on the data, local coordinates are converted in the solid model, namely the origin of the local coordinates is moved to the center line of the lifting beam and is positioned at the center of the bridge section, so that the control points are completely symmetrical, the lofting direction is consistent with the direction of the bridge, and the control points are conveniently and quickly released.
And S2, mounting and positioning.
The position control points of the mounting mechanism 100 and the relative position control points of the steel anchor box 200 on the mounting mechanism 100 are determined in the solid model.
Then, local coordinate information of the position control point of the installation mechanism 100 and the relative position control point of the steel anchor box 200 on the installation mechanism 100 is extracted, a data table is formed, and the position control point of the installation mechanism 100 and the relative position control point of the steel anchor box 200 on the installation mechanism 100 are lofted on a concrete bridge bottom template by using a total station.
Aligning and installing the installation mechanism 100 in place according to the released position control point, and fixing the clamping plate 21 in the positioning part 20 at the gravity center height of the steel anchor box 200 and along the length direction of the steel anchor box 200; meanwhile, the position of the support plate 14 is determined on the installation mechanism 100, and the clamping plates 21 in the positioning parts 20 are arranged perpendicularly to the intersection of the support plate 14 in the support part 10, namely the intersection points are relative position control points of the steel anchor box 200 and the installation mechanism 100, and the structure is shown in FIG. 2, so that the position of the steel anchor box 200 in the horizontal plane is accurately controlled.
And S3, adjusting the position of the steel anchor box 200.
After the positioning part 20 is adjusted to be in place, the steel anchor box is hung into the positioning part 20, the steel anchor box is in place according to a relative position control point of the steel anchor box 200 and the installation mechanism 100, after the positioning part is in place, the upper pipe orifice center 40 of the steel anchor box 200 is selected as a fine adjustment control point, the adjusting part 30 is arranged at one end close to the inclination of the pipe orifice center 40 to jack the head of the steel anchor box 200, the adjusting part 30 is placed on the supporting plate 14 to be placed, and then a total station is used for performing fine adjustment, so that the installation of the steel anchor box 200 is completed.
The installation method of the installation mechanism 100 for the steel anchor box 200 provided by the invention comprises the steps of establishing a solid model of the steel anchor box 200 by a BIM technology, accurately simulating an installation position, converting global control coordinates into the model by the BIM technology to form local control coordinates, performing control point lofting by a total station, installing a positioning measure tool, and accurately adjusting by the total station after the installation is finished. Finally, the steel anchor box is accurately positioned and reinforced. Meanwhile, lofting control points can be accurately arranged, batch steel anchor boxes 200 can be roughly installed in place in the installation process, and then a total station is used for overall accurate adjustment, so that the installation efficiency and accuracy are improved, and the space accuracy can be controlled within 5mm
The steel anchor box mounting mechanism and the mounting method designed by the invention have the advantages of simple structure, easy adjustment, local control, full node placement, positioning and mounting, and accurate adjustment of positioning and fixing of the steel anchor box. Meanwhile, in the installation process, batch steel anchor boxes can be installed in place in a rough mode, and then the whole station is adjusted accurately, so that the installation efficiency and the adjustment accuracy are improved, and the space accuracy can be controlled within 5 mm.
The embodiments of the present invention have been described in detail, and the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides a steel anchor case installation mechanism which characterized in that contains:
the support part is constructed with a frame body arranged in a hollow way and can support the height of the steel anchor box based on the installation position of the steel anchor box;
the positioning part is constructed at the gravity center position of the steel anchor box;
the positioning part can enable the steel anchor box to be hung on the supporting part to be inclined and vertically placed when the positioning part is installed.
2. The steel anchor box mounting mechanism as claimed in claim 1, wherein the frame body is a hollow square frame provided with a plurality of layers of parallel-arranged frame rings and upright rods connecting angular points of the frame rings;
the upper end of the upright rod is also provided with a support plate which is arranged in an alignment way, and the support plate is arranged on the shorter side surface of the frame body.
3. The steel anchor box mounting mechanism of claim 2, wherein all of the frame rings are horizontally disposed and adjacent frame rings are spaced apart.
4. The steel anchor box mounting mechanism as claimed in claim 2 or 3, wherein the spacing height between two of said rims disposed at the uppermost layer is smaller than the spacing height between two of said rims disposed at the lower layer;
and the other frame rings of the two frame rings arranged on the uppermost layer are distributed with equal height.
5. The steel anchor box mounting mechanism as claimed in claim 4, wherein the height of the vertical rod is higher than the height of the support plate;
the number of the upright rods is not less than the number of the corner points of the frame ring.
6. A steel anchor box mounting mechanism as claimed in any one of claims 2 to 3 and 5 wherein the support plates extend outwardly along their length.
7. The steel anchor box mounting mechanism as claimed in claim 5, wherein all of the uprights are provided with a gasket on their lower end faces.
8. A steel anchor box mounting mechanism as claimed in any one of claims 2-3, 5 and 7 wherein said locating portions are configured as opposed clamping plates, said clamping plates each being disposed along the longer width of said frame cross section;
the clamping plates are fixedly arranged on two sides of the width of the steel frame plate of the steel anchor box and are arranged in a crossed mode with the length of the supporting plate.
9. The steel anchor box mounting mechanism of claim 8, further comprising an adjusting part disposed on the supporting plate near the inclined end of the head of the steel anchor box, wherein the upper end surface of the adjusting part is used for abutting against an ear platform in the steel anchor box, so that a contact point of the steel anchor box and the adjusting part, a center of gravity of the steel anchor box, and a contact point of the steel anchor box and the frame ring are all located on the same straight line.
10. A method of installing a steel anchor box, using the installation mechanism of any one of claims 1 to 9, comprising the steps of:
s1, establishing a three-dimensional entity model;
modeling the steel anchor box based on a BIM technology to form a three-dimensional solid model;
setting the installation positions of the steel anchor boxes based on drawing requirements, and converting the global control coordinates of all the steel anchor boxes into a physical model to form local control coordinates;
inputting the coordinate data of the corresponding steel anchor box section into the solid model based on the data of the mileage number coordinate values in the drawing, and inputting the coordinate values in the field mapping network into the solid model to form model data under a global coordinate system;
s2, mounting and positioning;
determining a position control point of the installation mechanism and a relative position control point of the steel anchor box on the installation mechanism in the solid model;
extracting local coordinate information of the position control point of the installation mechanism and the relative position control point of the steel anchor box on the installation mechanism, forming a data table, and lofting the position control point of the installation mechanism and the relative position control point of the steel anchor box on the installation mechanism on a concrete bridge bottom template by using a total station;
aligning and positioning the mounting mechanism according to the released position control point, and fixing the clamping plate in the positioning part at the gravity center height of the steel anchor box and along the length direction of the steel anchor box;
meanwhile, the position of a supporting plate is determined on the mounting mechanism, and a clamping plate in the positioning part is arranged in a way of being vertical to the supporting plate in the supporting part in a crossed way, wherein the crossed point is a relative position control point of the steel anchor box and the mounting mechanism;
s3, adjusting the position of the steel anchor box;
after the positioning part is adjusted in place, the steel anchor box is hung into the positioning part, the steel anchor box is placed in place according to the relative position control point of the steel anchor box and the installation mechanism, the center of an upper pipe orifice of the steel anchor box is selected as a fine adjustment control point after the positioning part is placed in place, and a total station is used for performing accurate adjustment, so that the installation of the steel anchor box is completed.
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| CN204298720U (en) * | 2014-11-20 | 2015-04-29 | 中铁大桥局集团第四工程有限公司 | A kind of concrete box girder being provided with cable guide pipe positioner |
| CN205604090U (en) * | 2016-05-13 | 2016-09-28 | 中铁十七局集团第四工程有限公司 | Cable -stay bridge space cable catheter positioning device |
| KR101917812B1 (en) * | 2018-04-03 | 2019-01-23 | 에스오씨기술지주 주식회사 | Outer steel wire fixing part and construction method thereof |
| CN212477444U (en) * | 2020-05-29 | 2021-02-05 | 中铁建大桥工程局集团第四工程有限公司 | Positioning device for cable-stayed bridge end cable guide pipe |
| CN111593674A (en) * | 2020-06-12 | 2020-08-28 | 安徽省公路桥梁工程有限公司 | Suspended casting beam cable construction structure and construction method for n-shaped beam bridge |
| CN112761074A (en) * | 2020-12-28 | 2021-05-07 | 中铁广州工程局集团有限公司 | Construction method for integrally manufacturing and installing steel anchor box of cable-stayed bridge |
| CN114541264A (en) * | 2022-02-22 | 2022-05-27 | 中铁大桥勘测设计院集团有限公司 | Cable-stayed bridge cable guide pipe integrated measuring and positioning method |
| CN218059932U (en) * | 2022-06-01 | 2022-12-16 | 中冶天工集团有限公司 | Steel anchor box installation mechanism |
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