CN109629395B - Limiting V-shaped clamping plate for positioning concrete stay cable guide pipe and use method - Google Patents
Limiting V-shaped clamping plate for positioning concrete stay cable guide pipe and use method Download PDFInfo
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- CN109629395B CN109629395B CN201910106476.6A CN201910106476A CN109629395B CN 109629395 B CN109629395 B CN 109629395B CN 201910106476 A CN201910106476 A CN 201910106476A CN 109629395 B CN109629395 B CN 109629395B
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- limiting plate
- adjusting bolt
- shaped groove
- connecting rod
- cable guide
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 8
- 239000000945 filler Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Classifications
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
-
- 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
-
- 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
Abstract
The invention provides a limit V-shaped clamping plate for positioning a concrete stay cable guide pipe and a use method thereof, comprising a first limit plate, a second limit plate, a connecting rod and a nut, wherein the first limit plate and the second limit plate are oppositely arranged; the first limiting plate/the second limiting plate is provided with a first V-shaped groove, a second V-shaped groove, a first adjusting bolt and a second adjusting bolt, the first V-shaped groove and the second V-shaped groove are positioned between the through holes at two ends, and the first adjusting bolt and the second adjusting bolt adjust the fixation state of the embedded reinforcement framework and the cable guide tube. The limiting V-shaped clamping plate for positioning the concrete stay cable guide pipe can be quickly installed, and fine adjustment of the position of the cable guide pipe is realized.
Description
Technical Field
The invention relates to the field of cable-stayed bridge construction equipment, in particular to a limit V-shaped clamping plate for positioning a concrete stay cable guide pipe and a use method thereof.
Background
The cable-stayed bridge is the most main bridge type of a large-span bridge and mainly consists of a pressure-bearing tower, a tension cable and a bent girder body, wherein a stay cable is an important component for connecting the main tower and a main girder, and the stress condition of the stay cable can directly influence the line shape of the bridge when the bridge is closed, so that the service life of the cable-stayed bridge is further influenced. The cable guide pipes which are in one-to-one correspondence are pre-buried in the main tower and the main beam, so that the purpose of protecting and fixing the stay cable is to ensure that the stay cable anchoring point is at the correct position and accurately control the space alignment of the stay cable, and the installation and positioning of the cable guide pipes are key factors which directly influence the stress of the stay cable. In the construction of a cable-stayed bridge of a concrete girder, in order to prevent a cable conduit at the girder end from sliding displacement, the cable conduit needs to be fixed, and conventionally, a cable conduit positioning steel bar is directly welded on an embedded steel bar framework of the concrete girder. However, due to the influence of the follow-up local welding, external force collision and other factors, the cable guide pipe can be offset, even the friction phenomenon between the cable guide pipe and the stay cable occurs, the stress of the stay cable is greatly influenced, and the direct welding of the cable guide pipe positioning reinforcing steel bars makes the process of repositioning and adjusting the cable guide pipe excessively complex, so that the construction progress is influenced. Therefore, a cable guide pipe fixing device which is fast to install and adjustable is sought, and the cable guide pipe fixing device is a technical problem to be solved in the field of cable-stayed bridge construction equipment.
Disclosure of Invention
The invention aims to provide a limit V-shaped clamping plate for positioning a concrete stay cable guide pipe and a use method thereof, so as to solve the problem that the construction progress is influenced due to too complex positioning and adjusting process of the cable guide pipe in the prior art, and the technical scheme is as follows: the limiting V-shaped clamping plate comprises a first limiting plate, a second limiting plate, a connecting rod and a nut, wherein the first limiting plate and the second limiting plate are oppositely arranged, through holes are symmetrically formed in two ends, close to the first limiting plate and the second limiting plate, of the connecting rod, the connecting rod penetrates through the through holes, and the nut is used for fixing the connecting rod and adjusting the distance between the first limiting plate and the second limiting plate;
the first limiting plate/the second limiting plate is provided with a first V-shaped groove, a second V-shaped groove, a first adjusting bolt and a second adjusting bolt, the first V-shaped groove and the second V-shaped groove are positioned between the through holes at two ends, and the first adjusting bolt and the second adjusting bolt adjust the fixation state of the embedded reinforcement framework and the cable guide tube.
Preferably, the first limiting plate includes a first side surface and a second side surface, the first side surface and the second side surface are a pair of side surfaces of the first limiting plate, the second limiting plate includes a third side surface and a fourth side surface, the third side surface and the fourth side surface are a pair of side surfaces of the second limiting plate, and the second side surface is opposite to the third side surface; the first V-groove and the second V-groove are located on the second side/and the third side.
Preferably, the heads of the first adjusting bolt and the second adjusting bolt are located on the first side face and/or the fourth side face, one end, away from the head, of the first adjusting bolt enters the first V-shaped groove, one end, away from the head, of the second adjusting bolt enters the second V-shaped groove, and the first adjusting bolt, the second adjusting bolt, the first limiting plate and the second limiting plate are movably connected.
Preferably, the connecting rod is a bolt, one end of the connecting rod is located on the first side surface or the fourth side surface, and the nut is located at the other end of the connecting rod and fixes the connecting rod.
Preferably, the connecting rod is a screw rod, two ends of the connecting rod extend out of the first side surface and the fourth side surface respectively, and the nuts are positioned at two ends of the connecting rod and fix the connecting rod.
Preferably, the nut is one or more.
Preferably, the bottoms of the first V-shaped groove and the second V-shaped groove are parallel to the first side surface and the fourth side surface.
Preferably, the opening angle of the first V-shaped groove is larger than the opening angle of the second V-shaped groove.
Preferably, the hardness of the side surfaces of the first V-shaped groove and the second V-shaped groove is greater than the hardness of the embedded reinforcement cage and the rope guide pipe.
The application method of the limit V-shaped clamping plate positioned by the concrete stay cable guide pipe comprises the following steps:
s10, the first limiting plate and the second limiting plate are clamped at two sides of the cross of the embedded reinforcement framework and the cable guide pipe, the first V-shaped groove is clamped at the contact position of the embedded reinforcement framework and the cable guide pipe, and the second V-shaped groove is clamped on the embedded reinforcement framework;
s20, enabling the connecting rod to pass through holes of the first limiting plate and the second limiting plate and be fixed by the nut, and adjusting the distance between the first limiting plate and the second limiting plate;
s30, penetrating the first adjusting bolt and the second adjusting bolt into the first limiting plate and the second limiting plate, and screwing the first adjusting bolt and the second adjusting bolt until one ends, far away from the head, of the first adjusting bolt and the second adjusting bolt are propped against the embedded reinforcement cage and the cable guide pipe;
s40, synchronously adjusting the position of the nut and the tightness degree of the first adjusting bolt and the second adjusting bolt, and finely adjusting the position of the cable guide pipe;
s50, repeating the step S40 until the precision requirement is met, and welding and fixing the first adjusting bolt and the cable duct, and the second adjusting bolt and the cable duct.
The beneficial technical effects obtained by the invention are as follows:
1) The limiting V-shaped clamping plate for positioning the concrete stay cable guide pipe is of a split type combined structure, and the embedded reinforcement cage and the cable guide pipe can be preliminarily fixed through connection between the connecting rod and the nut, so that quick installation can be realized;
2) According to the invention, the position of the cable guide pipe can be finely adjusted under the condition that the installed first limiting plate and second limiting plate are not required to be removed by synchronously adjusting the positions of the nuts and the tightness degree of the first adjusting bolt and the second adjusting bolt, and the adjusting process is quick and effective, so that the construction period can be shortened.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic view of the spatial positions of a cable guide tube and an embedded reinforcement cage unit in the present invention;
FIG. 2 is a cross-sectional view of a spacing V-clamp for positioning a concrete stay cable duct in accordance with a first embodiment of the invention;
fig. 3 is a top view of a limiting V-shaped clamping plate fixed embedded reinforcement cage unit and a cable duct for positioning a concrete stay cable duct according to the first embodiment of the present invention;
FIG. 4 is a cross-sectional view of a spacing V-clamp for concrete stay cable duct positioning in accordance with a second embodiment of the present invention;
fig. 5 is a top view of a limiting V-shaped clamping plate fixed embedded reinforcement cage unit and a cable duct for positioning a concrete stay cable duct in a second embodiment of the invention.
Wherein: 1. a cable guide tube; 2. a first upper beam; 3. a first lower beam; 4. a second upper beam; 5. a second lower beam; 11. a first limiting plate; 12. a second limiting plate; 13. a connecting rod; 14 nuts; 15. a first adjusting bolt; 16. a second adjusting bolt; 17. a first V-groove; 18. a second V-groove; 111. a first side; 112. a second side; 121. a third side; 122. a fourth side; 21. a first limiting plate; 22. a second limiting plate; 23. a connecting rod; 24. a nut; 25. a first adjusting bolt; 26. a second adjusting bolt; 27. a first V-groove; 28. a second V-groove; 211. a first side; 212. a second side; 221. a third side; 222. fourth side surface
Detailed Description
The technical solution of the present invention will be described in detail below by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.
The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: the terms "/and" herein describe another associative object relationship, indicating that there may be two relationships, e.g., a/and B, may indicate that: the character "/" herein generally indicates that the associated object is an "or" relationship.
Example 1
As shown in fig. 1, the embedded reinforcement cage unit comprises a first upper beam 2, a first lower beam 3, a second upper beam 4 and a second lower beam 5, the cable duct 1 is in contact with the first upper beam 2 and the second lower beam 5, the contact point of the cable duct 1 and the first upper beam 2 is positioned at the upper middle of the first upper beam 2, and the contact point of the cable duct 1 and the second lower beam 5 is positioned at the lower middle of the second lower beam 5. It should be noted that, fig. 1 only shows one of the embedded reinforcement cage units, and the embedded reinforcement cage units may be formed by repeated spatial arrangement.
As shown in fig. 2 and fig. 3, a spacing V-shaped clamping plate for positioning a concrete stay cable guide pipe comprises a first limiting plate 11, a second limiting plate 12, a connecting rod 13 and a nut 14, wherein the first limiting plate 11 and the second limiting plate 12 are oppositely arranged, through holes are symmetrically formed in two ends, close to the first limiting plate 11 and the second limiting plate 12, the shape and the size of the through holes are the same, the number of the connecting rods 13 is two, the connecting rods 13 penetrate through the through holes, and the nut 14 fixes the connecting rods 13 and adjusts the distance between the first limiting plate 11 and the second limiting plate 12. The embedded reinforcement framework and the cable duct 1 can be preliminarily fixed through the connection between the connecting rod 13 and the nut 14, so that the quick installation of the limiting V-shaped clamping plate for positioning the concrete stay cable duct can be realized. The specific shapes of the through hole and the connecting rod 13 in this embodiment are not limited, and may be cylindrical, but not limited to cylindrical, so long as the matching requirement between the connecting rod 13 and the through hole can be satisfied. In addition, the thicknesses of the first limiting plate 11 and the second limiting plate 12 are preferably the same and are both larger than the inner dimension of the through hole.
In this embodiment, the first limiting plate 11 includes a first side 111 and a second side 112, the first side 111 and the second side 112 are a pair of sides of the first limiting plate 11, the second limiting plate 12 includes a third side 121 and a fourth side 122, the third side 121 and the fourth side 122 are a pair of sides of the second limiting plate 12, and the second side 112 is opposite to the third side 121; the second side surface 112 and the third side surface 121 are respectively provided with a first V-shaped groove 17 and a second V-shaped groove 18, the first V-shaped groove 17 and the second V-shaped groove 18 on the first limiting plate 11 and the second limiting plate 12 are respectively arranged, the two first V-shaped grooves 17 which are oppositely arranged are the same in size and dimension, the two second V-shaped grooves 18 which are oppositely arranged are the same in size and dimension, and the first V-shaped groove 17 and the second V-shaped groove 18 are respectively positioned between through holes at two ends of the first limiting plate 11 and the second limiting plate 12.
The first adjusting bolt 15 and the second adjusting bolt 16 respectively penetrate into the first limiting plate 11 and the second limiting plate 12 from the first side surface 111 and the fourth side surface 122, one end, away from the head, of the first adjusting bolt 15 enters the first V-shaped groove 17, and one end, away from the head, of the second adjusting bolt 16 enters the second V-shaped groove 18.
When the cable guide tube 1 is used, the cable guide tube 1 and the embedded reinforcement framework unit are fixed through two limiting V-shaped clamping plates positioned by the concrete stay cable guide tube, one of the limiting V-shaped clamping plates is clamped at the first upper beam 2 and the first lower beam 3, the first V-shaped groove 17 is clamped at the contact position of the cable guide tube 1 and the first upper beam 2, and the second V-shaped groove 18 is clamped at the middle position of the first lower beam 3; the other limit V-shaped clamping plate is clamped at the second upper beam 4 and the second lower beam 5, the first V-shaped groove 17 is clamped at the contact position of the cable guide tube 1 and the second lower beam 5, and the second V-shaped groove 18 is clamped at the middle position of the second upper beam 4.
The first adjusting bolt 15 and the second adjusting bolt 16 are movably connected with the first limiting plate 11 and the second limiting plate 12, preferably in threaded connection, and the first adjusting bolt 15 and the second adjusting bolt 16 can adjust the fixing state of the embedded reinforcement cage and the cable guide tube 1. The length of the first adjusting bolt 15 should be greater than the distance from the bottom of the first V-shaped groove 17 to the first side 111 and the distance from the bottom of the first V-shaped groove 17 to the fourth side 122; the length of the second adjusting bolt 16 should be greater than the distance from the bottom of the second V-shaped groove 18 to the first side 111 and also greater than the distance from the bottom of the second V-shaped groove 18 to the fourth side 122; the specific dimensions of the first adjusting bolt 15 and the second adjusting bolt 16 are not limited in the present invention.
In this embodiment, the connecting rod 13 may be a bolt or a screw, where when the connecting rod 13 is a bolt, one end of the head of the connecting rod 13 is located on the first side 111 or the fourth side 122, and the nut 14 is located at the other end of the connecting rod 13 and fixes the connecting rod 13; when the connecting rod 13 is a screw rod, two ends of the connecting rod 13 extend out of the first side 111 and the fourth side 122 respectively, and the nuts 14 are located at two ends of the connecting rod 13 and fix the connecting rod 13. The number of nuts 14 for fixing the connecting rod 13 shown in fig. 2 is not limited to 2, and may be greater than 2, or may be less than 2, and the size of the nuts 14 is not limited in the present invention, so long as they can be engaged with the connecting rod 13.
In this embodiment, the bottoms of the first V-shaped groove 17 and the second V-shaped groove 18 are parallel to the first side 111 and the fourth side 122, and the opening angle of the first V-shaped groove 17 is larger than the opening angle of the second V-shaped groove 18, so as to engage with different positions. In addition, in order to prevent the side surfaces of the first V-shaped groove 17 and the second V-shaped groove 18 from being deformed by fixing the pre-buried reinforcement cage and the cable guide 1, the side surfaces of the first V-shaped groove 17 and the second V-shaped groove 18 should have a hardness greater than that of the pre-buried reinforcement cage and the cable guide 1.
Preferably, a clamping groove (not shown) is respectively disposed between the first V-shaped groove 17 and the second V-shaped groove 18 on the second side surface 112 and the third side surface 121, the two clamping grooves are disposed opposite to each other, a spring (not shown) is disposed between the two clamping grooves, and two ends of the spring are respectively connected with the two clamping grooves. The working state of the spring is a tensile state, so that the first limiting plate 11 and the second limiting plate 12 have a tendency to approach each other. When the limiting V-shaped clamping plate positioned by the concrete stay cable guide pipe is affected by external factors to cause extremely slight vibration, the springs can serve as damping components to prevent the relative positions of the components of the limiting V-shaped clamping plate positioned by the concrete stay cable guide pipe from shifting in the long-term use process, and the service cycle of the limiting V-shaped clamping plate positioned by the concrete stay cable guide pipe is prolonged.
Preferably, after the assembly and fixation of the spacing V-shaped clamping plate positioned by the concrete stay cable conduit are completed, a filler (not shown) may be disposed at a gap between the first limiting plate 11 and the second limiting plate 12, and the type of the filler is not limited, so long as the filler has a damping effect, the service life of the spacing V-shaped clamping plate positioned by the concrete stay cable conduit may be prolonged by disposing the filler.
The application method of the limit V-shaped clamping plate positioned by the concrete stay cable guide pipe comprises the following steps:
s10, respectively clamping the two first limiting plates 11 and the two second limiting plates 12 on two sides of the embedded reinforcement framework unit and the cable duct 1 in a cross contact mode, wherein for one of the first limiting plates 11 and the second limiting plates 12, the first V-shaped groove 17 is clamped at a contact position of the first upper beam 2 and the cable duct 1, and the second V-shaped groove 18 is clamped at the middle of the first lower beam 3;
for the other one of the first limiting plate 11 and the second limiting plate 12, the first V-shaped groove 17 is engaged at a position where the second lower beam 5 contacts the cable duct 1, and the second V-shaped groove 18 is engaged at the middle of the second upper beam 4;
s20, penetrating the connecting rod 13 through the through holes of the first limiting plate 11 and the second limiting plate 12 and fixing the connecting rod by the nuts 14, adjusting the distance between the first limiting plate 11 and the second limiting plate 12, and preliminarily fixing the embedded reinforcement cage and the cable guide tube 1;
s30, penetrating the first adjusting bolt 15 and the second adjusting bolt 16 into the first limiting plate 11 and the second limiting plate 12, and screwing the first adjusting bolt 15 and the second adjusting bolt 16 until one ends, far away from the heads, of the first adjusting bolt 15 and the second adjusting bolt 16 are propped against the embedded reinforcement cage and the cable guide pipe 1;
s40, synchronously adjusting the position of the nut 14 and the tightness degree of the first adjusting bolt 15 and the second adjusting bolt 16, and realizing fine adjustment of the position of the cable guide tube 1 without dismantling the installed first limiting plate 11 and second limiting plate 12, wherein the adjusting process is quick and effective, thereby shortening the construction period;
s50, repeating the step S40 until the precision requirement is met, and welding and fixing the first adjusting bolt 15 and the cable duct 1, and the second adjusting bolt 16 and the cable duct 1.
Example 2
As shown in fig. 4 and 5, a spacing V-shaped clamping plate for positioning a concrete stay cable guide pipe comprises a first limiting plate 21, a second limiting plate 22, a connecting rod 23 and a nut 24, wherein the first limiting plate 21 and the second limiting plate 22 are oppositely arranged, through holes are symmetrically formed in two ends, close to the first limiting plate 21 and the second limiting plate 22, of the two ends of the first limiting plate 21 and the second limiting plate 22, the shape and the size of the through holes are identical, the number of the connecting rods 23 is two, the connecting rods 23 penetrate through the through holes, and the nut 24 fixes the connecting rods 23 and adjusts the distance between the first limiting plate 21 and the second limiting plate 22. The embedded reinforcement framework and the cable duct 1 can be preliminarily fixed through the connection between the connecting rod 23 and the nut 24, so that the quick installation of the limit V-shaped clamping plate for positioning the concrete stay cable duct can be realized. The specific shape of the through hole and the connecting rod 23 in this embodiment is not limited, and may be a cylinder, but not limited to a cylinder, as long as the matching requirement between the connecting rod 23 and the through hole can be satisfied. In addition, the thicknesses of the first and second stopper plates 21 and 22 are preferably the same and are both larger than the inner dimension of the through hole.
In this embodiment, the first limiting plate 21 includes a first side 211 and a second side 212, the first side 211 and the second side 212 are a pair of sides of the first limiting plate 21, the second limiting plate 22 includes a third side 221 and a fourth side 222, the third side 221 and the fourth side 222 are a pair of sides of the second limiting plate 22, and the second side 212 is opposite to the third side 221; the second side 212 is provided with a first V-shaped groove 27 and a second V-shaped groove 28, and the first V-shaped groove 27 and the second V-shaped groove 28 are located between the through holes at two ends of the first limiting plate 21.
The first adjusting bolt 25 and the second adjusting bolt 26 penetrate into the first limiting plate 21 from the first side 211, one end, away from the head, of the first adjusting bolt 25 enters the first V-shaped groove 27, and one end, away from the head, of the second adjusting bolt 26 enters the second V-shaped groove 28.
When the cable guide tube 1 is used, the cable guide tube 1 and the embedded reinforcement framework unit are fixed through two limiting V-shaped clamping plates positioned by the concrete stay cable guide tube, one of the limiting V-shaped clamping plates is clamped at the first upper beam 2 and the first lower beam 3, the first V-shaped groove 27 is clamped at the contact position of the cable guide tube 1 and the first upper beam 2, and the second V-shaped groove 28 is clamped at the middle position of the first lower beam 3; the other limit V-shaped clamping plate is clamped at the second upper beam 4 and the second lower beam 5, the first V-shaped groove 27 is clamped at the contact position of the cable guide tube 1 and the second lower beam 5, and the second V-shaped groove 28 is clamped at the middle position of the second upper beam 4.
The first adjusting bolt 25 and the second adjusting bolt 26 are movably connected with the first limiting plate 21, preferably in threaded connection, and the first adjusting bolt 25 and the second adjusting bolt 26 can adjust the fixing state of the embedded reinforcement cage and the cable guide tube 1. The length of the first adjusting bolt 25 should be greater than the distance from the bottom of the first V-shaped groove 27 to the first side 211; the length of the second adjusting bolt 26 is greater than the distance from the bottom of the second V-shaped groove 28 to the first side 211; the specific dimensions of the first adjusting bolt 25 and the second adjusting bolt 26 are not limited in the present invention.
In this embodiment, the connecting rod 23 may be a bolt or a screw, where when the connecting rod 23 is a bolt, one end of the head of the connecting rod 23 is located on the first side 211 or the fourth side 222, and the nut 24 is located at the other end of the connecting rod 23 and fixes the connecting rod 23; when the connecting rod 23 is a screw rod, two ends of the connecting rod 23 extend out of the first side 211 and the fourth side 222, respectively, and the nut 24 is located at two ends of the connecting rod 23 and fixes the connecting rod 23. The number of nuts 24 for fixing the connecting rod 23 shown in fig. 4 is not limited to 2, and may be greater than 2, or less than 2, and the size of the nuts 24 is not limited in the present invention, so long as they can be engaged with the connecting rod 23.
In this embodiment, the bottoms of the first V-shaped groove 27 and the second V-shaped groove 28 are parallel to the first side 211, and the opening angle of the first V-shaped groove 27 is larger than the opening angle of the second V-shaped groove 28, so as to engage with different positions. In addition, in order to prevent the side surfaces of the first V-shaped groove 27 and the second V-shaped groove 28 from being deformed by fixing the pre-buried reinforcement cage and the cable guide 1, the side surfaces of the first V-shaped groove 27 and the second V-shaped groove 28 should have a hardness greater than that of the pre-buried reinforcement cage and the cable guide 1.
Preferably, a clamping groove (not shown) is disposed between the first V-shaped groove 27 and the second V-shaped groove 28 on the second side surface 212, a clamping groove is also disposed on the third side surface 221, the two clamping grooves are disposed opposite to each other, a spring (not shown) is disposed between the two clamping grooves, and two ends of the spring are respectively connected with the two clamping grooves. The working state of the spring is a tensile state, so that the first limiting plate 21 and the second limiting plate 22 have a tendency to approach each other. When the limiting V-shaped clamping plate positioned by the concrete stay cable guide pipe is affected by external factors to cause extremely slight vibration, the springs can serve as damping components to prevent the relative positions of the components of the limiting V-shaped clamping plate positioned by the concrete stay cable guide pipe from shifting in the long-term use process, and the service cycle of the limiting V-shaped clamping plate positioned by the concrete stay cable guide pipe is prolonged.
Preferably, after the assembly and fixation of the spacing V-shaped clamping plate positioned by the concrete stay cable conduit are completed, a filler (not shown) may be disposed at a gap between the first limiting plate 21 and the second limiting plate 22, and the type of the filler is not limited, so long as the filler has a damping effect, the service life of the spacing V-shaped clamping plate positioned by the concrete stay cable conduit may be prolonged by disposing the filler.
The application method of the limit V-shaped clamping plate positioned by the concrete stay cable guide pipe comprises the following steps:
s10, respectively clamping the two first limiting plates 21 and the two second limiting plates 22 on two sides of the embedded reinforcement framework unit and the cable duct 1 in a cross contact mode, wherein for one of the first limiting plates 21 and the second limiting plates 22, the first V-shaped groove 27 is clamped at a contact position of the first upper beam 2 and the cable duct 1, and the second V-shaped groove 28 is clamped at the middle of the first lower beam 3;
for the other one of the first limiting plate 21 and the second limiting plate 22, the first V-shaped groove 27 is engaged with the second lower beam 5 at a position where the cable duct 1 contacts, and the second V-shaped groove 28 is engaged with the middle of the second upper beam 4;
s20, penetrating the connecting rod 23 through the through holes of the first limiting plate 21 and the second limiting plate 22 and fixing the connecting rod by the nuts 24, adjusting the distance between the first limiting plate 21 and the second limiting plate 22, and preliminarily fixing the embedded reinforcement cage and the cable guide tube 1;
s30, penetrating the first adjusting bolt 25 and the second adjusting bolt 26 into the first limiting plate 21, and screwing the first limiting plate into the first end, far away from the head, of the first adjusting bolt 25 and the second adjusting bolt 26 to prop against the embedded reinforcement cage and the cable guide pipe 1;
s40, synchronously adjusting the position of the nut 24 and the tightness fit degree of the first adjusting bolt 25 and the second adjusting bolt 26, and realizing fine adjustment of the position of the cable guide tube 1 without dismantling the installed first limiting plate 21 and second limiting plate 22, wherein the adjusting process is quick and effective, thereby shortening the construction period;
s50, repeating the step S40 until the precision requirement is met, and welding and fixing the first adjusting bolt 25 and the cable duct 1, and fixing the second adjusting bolt 26 and the cable duct 1.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The limiting V-shaped clamping plate for positioning the concrete stay cable guide pipe is characterized by comprising a first limiting plate, a second limiting plate, a connecting rod and a nut, wherein the first limiting plate and the second limiting plate are oppositely arranged, through holes are symmetrically formed in two ends, close to the first limiting plate and the second limiting plate, of the connecting rod, the connecting rod penetrates through the through holes, and the nut fixes the connecting rod and adjusts the distance between the first limiting plate and the second limiting plate;
the first limiting plate or/and the second limiting plate is/are provided with a first V-shaped groove, a second V-shaped groove, a first adjusting bolt and a second adjusting bolt, the first V-shaped groove and the second V-shaped groove are positioned between the through holes at the two ends, and the first adjusting bolt and the second adjusting bolt adjust the fixed state of the embedded reinforcement framework and the cable guide pipe;
the first limiting plate comprises a first side surface and a second side surface, the first side surface and the second side surface are a pair of side surfaces of the first limiting plate, the second limiting plate comprises a third side surface and a fourth side surface, the third side surface and the fourth side surface are a pair of side surfaces of the second limiting plate, and the second side surface is opposite to the third side surface; the first V-shaped groove and the second V-shaped groove are respectively arranged on the second side face and the third side face, and the first V-shaped groove and the second V-shaped groove on the first limiting plate and the second limiting plate are respectively arranged.
2. The spacing V-clamp for positioning a concrete stay cable duct according to claim 1, wherein the heads of the first and second adjusting bolts are located on the first side face and/or the fourth side face, the first adjusting bolt is far away from one end of the head and enters the first V-groove, the second adjusting bolt is far away from one end of the head and enters the second V-groove, and the first and second adjusting bolts are movably connected with the first and/or second limiting plates.
3. The concrete stay cable duct positioned limit V-clamp of claim 1, wherein the tie is a bolt, one end of the tie is located on the first side or the fourth side, and the nut is located at the other end of the tie and secures the tie.
4. The spacing V-clamp for positioning a concrete stay cable duct according to claim 1, wherein the connecting rod is a screw, two ends of the connecting rod extend out of the first side surface and the fourth side surface respectively, and the nuts are located at two ends of the connecting rod and fix the connecting rod.
5. The spacing V-clip for concrete stay cable duct positioning of claim 3 or 4, wherein said nut is one or more.
6. The spacing V-clip for concrete stay cable duct positioning of any one of claims 1-2, wherein the bottoms of the first V-groove and the second V-groove are parallel to the first side and the fourth side.
7. The concrete stay cable duct positioned limit V-clamp of any one of claims 1-2, wherein an opening angle of the first V-groove is greater than an opening angle of the second V-groove.
8. The spacing V-clamp for positioning a concrete stay cable duct according to any one of claims 1-2, wherein the first V-groove and the second V-groove have a side hardness greater than the hardness of the pre-buried reinforcement cage and the cable duct.
9. The method of using a spacing V-clamp for positioning a concrete stay cable duct according to claim 1, comprising the steps of:
s10, the first limiting plate and the second limiting plate are clamped at two sides of the cross of the embedded reinforcement framework and the cable guide pipe, the first V-shaped groove is clamped at the contact position of the embedded reinforcement framework and the cable guide pipe, and the second V-shaped groove is clamped on the embedded reinforcement framework;
s20, enabling the connecting rod to pass through holes of the first limiting plate and the second limiting plate and be fixed by the nut, and adjusting the distance between the first limiting plate and the second limiting plate;
s30, penetrating the first adjusting bolt and the second adjusting bolt into the first limiting plate and the second limiting plate, and screwing the first adjusting bolt and the second adjusting bolt until one ends, far away from the head, of the first adjusting bolt and the second adjusting bolt are propped against the embedded reinforcement cage and the cable guide pipe;
s40, synchronously adjusting the position of the nut and the tightness degree of the first adjusting bolt and the second adjusting bolt, and finely adjusting the position of the cable guide pipe;
s50, repeating the step S40 until the precision requirement is met, and welding and fixing the first adjusting bolt and the cable duct, and the second adjusting bolt and the cable duct.
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