CN216838984U - Tower top temporary counter-pulling cable saddle device capable of quickly unloading prestress - Google Patents
Tower top temporary counter-pulling cable saddle device capable of quickly unloading prestress Download PDFInfo
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- CN216838984U CN216838984U CN202220461719.5U CN202220461719U CN216838984U CN 216838984 U CN216838984 U CN 216838984U CN 202220461719 U CN202220461719 U CN 202220461719U CN 216838984 U CN216838984 U CN 216838984U
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Abstract
The utility model relates to the technical field of bridge turning construction, in particular to a tower top temporary counter-pulling cable saddle device capable of quickly unloading prestress, which comprises a limiting seat, wherein cable saddles are symmetrically arranged in the limiting seat, the cable saddles are arranged in a sliding way along the length direction of the limiting seat, counter-pulling structures are arranged at the lower parts of the two cable saddles in a penetrating way, a temporary tensioning structure is arranged at the upper part of one end, which is opposite and far away from the two cable saddles, and a limiting structure is arranged between the limiting seat and the two cable saddles; the counter-pulling structure comprises counter-pulling bolts arranged at the lower parts of the two cable saddles in a penetrating manner, and the temporary tensioning structure comprises temporary stay cables arranged at the upper parts of the opposite and far-away ends of the two cable saddles in a penetrating manner. The utility model discloses be convenient for interim suspension cable fast uninstallation, improve efficiency of construction and security, reduce construction cost's characteristics, overcome that current interim cable saddle high altitude construction volume is big, the interim suspension cable speed of uninstallation is slow, construction cost is high shortcoming.
Description
Technical Field
The utility model relates to a bridge construction technical field that turns especially relates to a top of tower of prestressing force can be uninstalled fast is temporarily to guy cable saddle device.
Background
The bridge turning construction technology is mature and widely applicable, and the horizontal turning construction method is most applied. The bridge rotation construction is widely applied to special river channels crossing deep valleys and torrential currents and cross-line bridges which are difficult to hoist, can reduce the influence on traffic under the bridge to the maximum extent, and has the characteristics of hoisting cost saving, safety, reliability, good integrity and the like.
In the swivel bridge horizontal rotation construction method, a swivel scheme of forming a temporary cable-stayed bridge by arranging a temporary cable tower at the top of a beam pier is more convenient to ensure the integral line shape of the bridge compared with the existing widely-applied double-cantilever swivel construction. In the construction method, temporary stay cables are symmetrically tensioned on cable saddles at the top ends of the temporary cable towers, and the temporary stay cables need to be unloaded and removed after construction is finished. Therefore, after construction is finished, anchor unloading is needed at the cable saddle at the top of the temporary cable tower, and professional equipment such as a jack and constructors are needed to be repeatedly moved, so that the construction period is prolonged, and the construction efficiency is low. Meanwhile, the workload of overhead operation is large, overhead hoisting and overhead welding operation on the tower top have great influence on the operation safety of the adjacent railway, and the construction risk and cost are increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a but interim to guy cable saddle device in top of tower of quick uninstallation prestressing force to solve above-mentioned problem, be convenient for interim suspension cable uninstallation fast, improve the characteristics of efficiency of construction and security, reduction construction cost, overcome that current interim guy cable saddle high altitude construction volume is big, the uninstallation is interim to the shortcoming that suspension cable speed is slow, construction cost is high.
In order to achieve the above object, the utility model provides a following scheme:
a tower top temporary counter-pulling cable saddle device capable of quickly unloading prestress comprises a limiting seat, wherein cable saddles are symmetrically arranged in the limiting seat, the cable saddles are arranged in a sliding mode along the length direction of the limiting seat, counter-pulling structures penetrate through the lower portions of the two cable saddles, temporary tensioning structures are arranged on the upper portions of the ends, opposite to and far away from the two cable saddles, of the two cable saddles, and a limiting structure is arranged between the limiting seat and the two cable saddles;
the counter-pulling structure comprises two counter-pulling bolts arranged at the lower part of the cable saddle, and the temporary tensioning structure comprises two temporary stay cables arranged on the upper part of the end, opposite to and far away from the cable saddle, of the cable saddle.
Preferably, limit structure is including seting up a plurality of spacing bolt mounting holes of lateral wall around the spacing seat, it is a plurality of spacing bolt mounting hole divide into two sets ofly, two are two sets of spacing bolt mounting hole is followed the central line symmetry of spacing seat sets up, two a plurality of spacing bolt via holes have been seted up to the lateral wall around the cable saddle looks remote site, spacing bolt via hole with spacing bolt mounting hole corresponds the setting, wear to be equipped with spacing bolt in spacing bolt via hole, the spacing bolt mounting hole.
Preferably, at least two opposite-pulling screw rod holes are formed in the outer end face of the cable saddle, and the opposite-pulling bolts penetrate through the opposite-pulling screw rod holes.
Preferably, there are adjusting nut to stay bolt both ends threaded connection, stay bolt both ends cover is equipped with two arc gaskets, two the arc gasket is located adjusting nut is inboard, the arcwall face of arc gasket with the cable saddle tip contacts.
Preferably, two the opposite side in cable saddle upper portion has seted up the steel strand wires anchor eye, the inside floor that is equipped with of the opposite side in cable saddle upper portion, interim suspension cable passes the steel strand wires anchor eye sets up.
Preferably, the bottom of the cable saddle is provided with an inner side supporting point and an outer side supporting point, the outer side supporting point is located at the bottom of the two opposite sides of the cable saddle, and the outer side supporting point is located in the middle of the bottom surface of the cable saddle.
Preferably, a separation rib plate is arranged on the inner side of the cable saddle inner end face of the cable saddle and is located between the two split bolts.
The utility model discloses has following technological effect:
the utility model realizes the rapid unloading of the cable saddle by the relative motion of the two cable saddles through the temporary stay cable, without using professional equipment and personnel such as a jack to unload the anchor, thereby saving the construction cost and the construction period;
the main components of the utility model are all connected by bolts, so that the installation and the disassembly are convenient during the construction, the construction speed is improved, the processing cost is low, and the construction cost is saved;
after the construction of turning, the utility model discloses cyclic utilization behind the detachable of essential element saves construction material, further reduces construction cost, economic environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic cross-sectional view of A-A of FIG. 1;
FIG. 4 is a schematic cross-sectional view of B-B in FIG. 2;
FIG. 5 is a schematic structural view of the present invention in a front view during the unloading of the prestressing force;
FIG. 6 is a schematic top view of the present invention during unloading of the prestressing force;
FIG. 7 is a schematic cross-sectional view of D-D of FIG. 5;
FIG. 8 is a schematic cross-sectional view of E-E of FIG. 6;
FIG. 9 is a schematic cross-sectional view of C-C of FIG. 1;
FIG. 10 is a schematic view of the split bolt structure of the present invention;
FIG. 11 is a view of the structural components of the cable saddle of the present invention;
fig. 12 is a schematic structural view of the limiting seat of the present invention.
Wherein, 1, a cable saddle; 101. a temporary stay cable; 102. steel strand anchor eye; 103. a rib plate; 104. limiting bolt through holes; 105. the outer end face of the cable saddle; 1051. oppositely pulling a screw hole; 106. the inner end surface of the cable saddle; 1061. a partition rib plate; 107. an inboard support point; 108. an outboard support point; 2. a limiting seat; 201. a limit bolt; 202. A limit bolt mounting hole; 3. oppositely pulling the bolts; 301. adjusting the nut; 302. an arc gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1-12, the utility model provides a tower top temporary counter-pulling cable saddle device capable of rapidly unloading prestress, which comprises a limiting seat 2, wherein cable saddles 1 are symmetrically arranged in the limiting seat 2, the cable saddles 1 are arranged along the length direction of the limiting seat 2 in a sliding manner, counter-pulling structures are arranged at the lower parts of the two cable saddles 1 in a penetrating manner, temporary tensioning structures are arranged at the upper parts of the opposite and far ends of the two cable saddles 1, and a limiting structure is arranged between the limiting seat 2 and the two cable saddles 1;
the counter-pulling structure comprises counter-pulling bolts 3 arranged at the lower parts of the two cable saddles 1 in a penetrating manner, and the temporary tensioning structure comprises a temporary stay cable 101 arranged at the upper part of one end, opposite to and far away from the two cable saddles 1, in a penetrating manner.
Further optimize the scheme, limit structure is including seting up a plurality of spacing bolt mounting holes 202 at lateral wall around spacing seat 2, and a plurality of spacing bolt mounting holes 202 divide into two sets ofly, and two sets of spacing bolt mounting holes 202 set up along spacing seat 2's central line symmetry, and a plurality of spacing bolt via holes 104 have been seted up to the lateral wall around two cable saddle 1 looks remote terminals, and spacing bolt via hole 104 corresponds the setting with spacing bolt mounting hole 202, wears to be equipped with spacing bolt 201 in spacing bolt via hole 104, the spacing bolt mounting hole 202.
In a further optimized scheme, at least two opposite-pulling screw holes 1051 are formed in the outer end face 105 of the cable saddle 1, and the opposite-pulling bolts 3 penetrate through the opposite-pulling screw holes 1051.
Further optimize the scheme, 3 both ends threaded connection of split bolt have adjusting nut 301, and 3 both ends covers of split bolt are equipped with two arc gaskets 302, and two arc gaskets 302 are located adjusting nut 301 inboardly, and the arcwall face and the cable saddle 1 tip of arc gasket 302 contact.
According to the further optimization scheme, steel strand anchor holes 102 are formed in opposite side faces of the upper portions of the two cable saddles 1, ribbed plates 103 are arranged inside the opposite side faces of the upper portions of the cable saddles 1, and the temporary stay cables 101 penetrate through the steel strand anchor holes 102.
In a further optimized scheme, the bottom of the cable saddle 1 is provided with an inner supporting point 107 and an outer supporting point 108, the outer supporting point 108 is positioned at the bottom of the opposite sides of the two cable saddles 1, and the outer supporting point 108 is positioned in the middle of the bottom surface of the cable saddle 1.
In a further optimized scheme, a separation rib plate 1061 is arranged on the inner side of the inner cable saddle end surface 106 of the cable saddle 1, and the separation rib plate 1061 is located between the two split bolts 3.
The utility model discloses a quick dismantlement method as follows:
1) fixing the installation limiting seat 2 on the top of the temporary diagonal tower, and fixing the cable saddle 1 on one side through a limiting bolt 201 to form a limiting slideway;
2) the split bolt 3 penetrates through a reserved split screw rod hole 1051, and an adjusting nut 301 and an arc-shaped gasket 302 are arranged at two free ends of the split bolt 3;
3) screwing the limiting bolt 201 on the limiting seat 2, screwing the adjusting nut 301, combining the left and right side cable saddles 1, and installing the device on a temporary diagonal tower top support;
4) tensioning the temporary stay cable 101, and then performing swivel bridge construction;
5) after the swivel construction is completed, the limiting bolt 201 of the limiting seat 2 is detached, the adjusting nut 301 on the split bolt 3 is unscrewed, and the cable saddles 1 on the left side and the right side are separated. Firstly, the cable saddles 1 on the left side and the right side move back to back on a horizontal slide way of the limiting seat 2, and the cable saddles 1 on the left side and the right side are horizontally separated; when the cable saddles 1 on the left side and the right side move for a certain distance relatively, the outer side supporting points 108 of the cable saddles 1 on the left side and the right side slide into the inclined slide way part, meanwhile, the inner side supporting points 107 are still positioned in the horizontal slide way, the cable saddles 1 on the left side and the right side are separated in an outward inclined way, the temporary stay cables 101 are easy to loosen when the angle is large, and the cable saddles are quickly unloaded;
6) the cable saddle 1, the split bolt 3, the limiting bolt 201 and the limiting seat 2 can be detached for repeated use.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (7)
1. The tower top temporary counter-pulling cable saddle device capable of rapidly unloading prestress is characterized by comprising a limiting seat (2), cable saddles (1) are symmetrically arranged in the limiting seat (2), the cable saddles (1) are arranged in a sliding mode along the length direction of the limiting seat (2), counter-pulling structures penetrate through the lower portions of the two cable saddles (1), temporary tensioning structures are arranged on the upper portions of the opposite and far ends of the two cable saddles (1), and a limiting structure is arranged between the limiting seat (2) and the two cable saddles (1);
the counter-pulling structure comprises two counter-pulling bolts (3) arranged on the lower portion of the cable saddle (1), and the temporary tensioning structure comprises two temporary stay cables (101) arranged on the upper portion of one end, opposite to and far away from the cable saddle (1).
2. The tower top temporary counter-stay cable saddle device capable of rapidly unloading prestress according to claim 1, wherein the limiting structure comprises a plurality of limiting bolt mounting holes (202) formed in the front and rear side walls of the limiting seat (2), the limiting bolt mounting holes (202) are divided into two groups, the two groups of limiting bolt mounting holes (202) are symmetrically arranged along the center line of the limiting seat (2), a plurality of limiting bolt through holes (104) are formed in the front and rear side walls of the opposite ends of the cable saddle (1), the limiting bolt through holes (104) are arranged corresponding to the limiting bolt mounting holes (202), and limiting bolts (201) penetrate through the limiting bolt through holes (104) and the limiting bolt mounting holes (202).
3. The tower top temporary split-pulling cable saddle device capable of rapidly unloading prestress according to claim 1, wherein the cable saddle outer end face (105) of the cable saddle (1) is opened with at least two split-pulling screw holes (1051), and the split-pulling bolts (3) are inserted into the split-pulling screw holes (1051).
4. The tower top temporary split saddle device capable of rapidly unloading prestress according to claim 1, wherein two ends of the split bolt (3) are connected with adjusting nuts (301) in a threaded manner, two ends of the split bolt (3) are sleeved with two arc-shaped gaskets (302), the two arc-shaped gaskets (302) are located inside the adjusting nuts (301), and the arc-shaped surfaces of the arc-shaped gaskets (302) are in contact with the end portions of the saddle (1).
5. The tower top temporary counter-pulling cable saddle device capable of rapidly unloading prestress according to claim 1, wherein steel strand anchor holes (102) are formed in opposite side surfaces of the upper portions of the two cable saddles (1), rib plates (103) are arranged inside the opposite side surfaces of the upper portions of the cable saddles (1), and the temporary stay cables (101) are arranged through the steel strand anchor holes (102).
6. The tower top temporary counter-stay saddle device capable of rapidly unloading prestressing force according to claim 1, wherein the bottom of the saddle (1) is provided with an inner support point (107) and an outer support point (108), the outer support point (108) is located at the bottom of the two opposite sides of the saddle (1), and the outer support point (108) is located at the middle of the bottom surface of the saddle (1).
7. Tower top temporary counter-stay saddle device with quick unloading of prestressing according to claim 1, characterised in that inside the saddle inner end face (106) of the saddle (1) is provided a separation rib (1061), said separation rib (1061) being located between two of the counter-stay bolts (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220461719.5U CN216838984U (en) | 2022-03-04 | 2022-03-04 | Tower top temporary counter-pulling cable saddle device capable of quickly unloading prestress |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220461719.5U CN216838984U (en) | 2022-03-04 | 2022-03-04 | Tower top temporary counter-pulling cable saddle device capable of quickly unloading prestress |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216838984U true CN216838984U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220461719.5U Active CN216838984U (en) | 2022-03-04 | 2022-03-04 | Tower top temporary counter-pulling cable saddle device capable of quickly unloading prestress |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216838984U (en) |
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2022
- 2022-03-04 CN CN202220461719.5U patent/CN216838984U/en active Active
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