CN221297622U - Hyperbolic hoop - Google Patents
Hyperbolic hoopInfo
- Publication number
- CN221297622U CN221297622U CN202323368548.5U CN202323368548U CN221297622U CN 221297622 U CN221297622 U CN 221297622U CN 202323368548 U CN202323368548 U CN 202323368548U CN 221297622 U CN221297622 U CN 221297622U
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- China
- Prior art keywords
- hoop
- plate
- plates
- vertical direction
- hoop body
- Prior art date
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- 238000005452 bending Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Abstract
The utility model relates to the field of engineering structures, in particular to a hyperbolic hoop which comprises a hoop body plate, wherein two ends of the two hoop body plates are respectively connected and form a circular space for clamping a pier stud in the middle; the bottom of the hoop body plate is provided with an inward concave arc edge, so that the length of the two ends of the hoop body plate in the vertical direction is longer than that of the middle part in the vertical direction; the two ends of the body hooping plate are provided with stress parts. The hoop body plate has the advantages that the bottom edge of the hoop body plate is provided with the concave arc edge, so that the length of the two ends of the hoop body plate in the vertical direction is increased, the length of the two ends of the hoop body plate in the vertical direction is larger than that of the middle position in the vertical direction, the bending strength of the hoop is improved, the shape of the hoop body plate is more in line with the actual stress condition, the hoop body plate is prevented from being damaged by bending or being damaged by exceeding the bolt tension, and the safety of the hoop in the process of bearing a large load in the use process is improved.
Description
Technical Field
The utility model relates to the field of engineering structures, in particular to a hyperbolic hoop.
Background
The anchor ear is widely applied to bridge engineering, building and electric power engineering construction, and a steel plate with a certain thickness is used for hooping the pier column, and the anchor ear is used as a construction support through friction force between the steel plate and the pier column. The anchor ear has the characteristics of light structure, simple processing and manufacturing and low cost, and is suitable for soft soil foundation areas around pier columns, and the conditions of poor foundation bearing capacity and incapability of adopting a bracket method or high pier engineering.
As shown in fig. 1, the hoop plate is a curved beam with uniform cross section in the prior art, that is, the hoop plate has uniform height, the structure is simple, the manufacturing is convenient, but practical use and engineering experiments show that the atypical tension member of the hoop plate is more similar to a tension curved beam structure with two ends fixedly supported, therefore, as shown in fig. 2, the hoop can be regarded as a support structure of the two ends fixedly supported beams, and the vertical friction force between the hoop body and the pier column surface is regarded as external load.
Theoretical analysis and experiments show that the hoop plate is a tension bending member and is not a conventionally considered circumferential tension member. The existing anchor ear is not designed aiming at actual stress conditions, when bearing larger load, the anchor ear easily causes plate yield, bolts overstretching, difficult disassembly and even plate damage, bolt breakage and anchor ear falling.
Disclosure of utility model
In view of the above drawbacks of the prior art, an object of the present application is to provide a hyperbolic hoop to solve at least one of the above problems.
The aim of the utility model is achieved by the following technical scheme: the double-curved anchor ear comprises anchor ears, wherein each anchor ear comprises two anchor ear body plates, and two ends of each anchor ear body plate are respectively connected and form a circular space for holding an pier stud; the bottom of the body hooping plate is provided with an inward concave arc edge, so that the length of the two ends of the body hooping plate in the vertical direction is longer than that of the middle part in the vertical direction; and stress parts are arranged at two ends of the body hooping plate. Through setting the hoop body plate to the height that highly is greater than the centre at both ends, make the hoop body plate more accord with actual atress condition to the staple bolt bears bigger load.
In some embodiments, flange plates are arranged at two ends of the body hooping plate, and the two body hooping plates are connected with each other through the flange plates. And connecting the two body hooping plates by using the flange plate.
In some embodiments, the length of the flange plate in the vertical direction is consistent with the length of the two ends of the body hooping plate in the vertical direction. The length of the flange plate is consistent with that of the hoop body plate, and the connection strength is improved.
In some embodiments, the force-receiving member includes horizontal ring plates disposed at both ends of the collar plate and connected with the flange plate. The horizontal ring plate is used for providing a supporting point for the load.
In some embodiments, a plurality of vertical arrays of horizontal ring plates are disposed on the collar plate. And a plurality of horizontal annular plates are arranged, and the horizontal annular plates are used as stiffening ribs, so that the strength of the anchor ear is improved.
In some embodiments, bolts are arranged on the flange plates, and the bolts are used for connecting the flange plates corresponding to two ends of the body hooping plates. The bolts connect the two hoop body plates by connecting the flange plates on the two hoop body plates.
In some embodiments, the plurality of bolts are located in gaps of a plurality of horizontal ring plates connected with the flange plate and are arranged in a row in a vertical direction.
In some embodiments, two rows of bolts are provided on each pair of interconnected flange plates. Two rows of bolts are arranged, so that the connection strength of the anchor ear is improved.
The utility model has the following advantages:
Through setting the base of hoop body board to the arc limit of indent, when having increased hoop body board both ends in the ascending length of vertical direction, saved the steel quantity to make the structure of hoop body board more accord with the actual atress condition of staple bolt, avoid the plate to yield impaired when bearing great load, avoid bolt overstretching fracture simultaneously.
Drawings
Figure 1 is a force diagram of a prior art anchor;
FIG. 2 is an equivalent force diagram of a prior art anchor ear;
FIG. 3 is a schematic diagram of bending moment of a prior art anchor ear;
fig. 4 is a front view of the doubly curved anchor ear of the present utility model;
fig. 5 is a side view of the doubly curved anchor of the present utility model;
FIG. 6 is a top view of the doubly curved anchor of the present utility model;
in the figure: 1. a body hooping plate; 11. arc edges; 2. a flange plate; 3. a horizontal annular plate; 4. and (5) a bolt.
Detailed Description
For the purpose of making the technical solution and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.
As shown in fig. 4-6, the utility model provides a hyperbolic hoop, which comprises a hoop, wherein the hoop comprises two hoop body plates 1, two ends of the two hoop body plates 1 are respectively connected and a circular space for clamping a pier stud is formed between the two hoop body plates 1; the bottom of the body hooping plate 1 is provided with an inward concave arc edge 11, so that the length of the two ends of the body hooping plate 1 in the vertical direction is longer than that of the middle position in the vertical direction; the body hooping plate 1 is provided with stress parts at two ends, and the stress parts are used for supporting load.
Specifically, in this embodiment, two circular arc-shaped hoop body plates 1 are vertically arranged and two ends are connected with each other, a vertical circular space for holding the pier stud is formed between the two hoop body plates 1, the bottom of the hoop body plate 1 is provided with an inward concave arc edge 11, the length of the two ends of the hoop body plate 1 in the vertical direction is greater than the length of the middle position in the vertical direction, the inward concave arc edge 11 enables the hoop body plate 1 to form a variable cross-section structure, and the height of the cross section of the middle position of the hoop body plate 1 is smaller than the height of the cross section of the two end positions.
Because the pier column is applied to the vertical friction force of the hoop body plate 1 and is unevenly distributed, the friction force is increased from the middle part of the hoop body plate 1 to two ends, the bending moment born by the hoop body plate 1 is also increased from the middle part of the hoop body plate 1 to two ends, the bottom edge of the hoop body plate 1 is set to be an inward concave arc edge, the height of the cross section of each position of the hoop body plate 1 corresponds to the bending moment generated by the friction force of the pier column born by the position, so that the material is saved, the hoop body plate 1 has higher strength, the hoop body plate 1 is not easy to yield and damage, and can bear larger load.
Preferably, flange plates 2 are arranged at two ends of the body hooping plate 1, and the two body hooping plates 1 are connected with each other through the flange plates 2. The flange plate 2 is arranged to facilitate the connection of the two body hooping plates 1.
Preferably, the length of the flange plate 2 in the vertical direction is identical to the length of the two ends of the body-hooping plate 1 in the vertical direction. The length of the flange plate 2 in the vertical direction is set to be consistent with the length of the end part of the hoop body plate 1 in the vertical direction, so that the area of the flange plate 2 is increased as much as possible, and the connection between the hoop body plates 1 is firmer.
Preferably, the stress component comprises a horizontal annular plate 3, and the horizontal annular plate 3 is arranged at two ends of the body hooping plate 1 and is connected with the flange plate 2. In this embodiment, the horizontal annular plate 3 is horizontally arranged to provide a supporting point for the load, the horizontal annular plate 3 is triangular, one side of the horizontal annular plate 3 is welded with the body hooping plate 1, and the other side is welded with the flange plate 2, so that the bearing capacity of the horizontal annular plate 3 is enhanced.
Preferably, a plurality of horizontal annular plates 3 are arranged in a vertical array on the body hoop plate 1. In this embodiment, set up a plurality of horizontal annular plates 3, a plurality of horizontal annular plates 3 connect between flange board 2 and hoop body board 1, form the stiffening rib, make flange board 2 be difficult for yielding under the heavy load, promoted the staple bolt stability under the heavy load.
Preferably, bolts 4 are provided on the flange plates 2, and the bolts 4 are used for connecting the flange plates 2 corresponding to the two ends of the body-hooping plate 1. In this embodiment, the corresponding flange plates 2 on the two body hooping plates 1 are connected by bolts 4.
Preferably, the bolts 4 are respectively located in the gaps of the horizontal ring plates 3 connected to the flange plate 2 and arranged in a row in the vertical direction. In this embodiment, bolts 4 are provided in the gaps between each of the horizontal ring plates 3 on the flange plates 2, so that the connection between the flange plates 2 is more stable.
Preferably, two columns of bolts 4 are provided on each pair of interconnected flange plates 2. In this embodiment, specifically, two bolts 4 are disposed in the gap between each horizontal ring plate 3 on the flange plate 2, so that the bolts 4 on the flange plate 2 are arranged in two rows, and the stability of connection between the flange plates 2 is further improved. In other embodiments, each pair of interconnected flange plates may be provided with a single row of bolts or multiple rows of bolts.
The design principle of the utility model is as follows:
The force diagram of the existing anchor ear is shown in fig. 1, the friction force applied by the pier stud to the anchor ear is unevenly distributed, the friction force is approximately distributed according to the characteristic distribution of small middle and large two ends, the friction force approximates to a tension bending beam structure with fixed supports at two ends, the equivalent force diagram of the existing anchor ear is shown in fig. 2, the bending moment diagram of the existing anchor ear is shown in fig. 3, two ends of the anchor ear are subjected to large positive bending moment, and the midspan position is subjected to small negative bending moment.
According to the intensity checking formula of the body hooping plate 1:
Wherein: t is the design value of the axial tension of the body hooping plate under the bolt 4; a is the sectional area of the body hooping plate; m is a bending moment design value generated by the friction counter force of the pier stud on the body hooping plate; w is the bending modulus of the section of the body plate; b is the thickness of the body hooping plate; h is the height of the hoop body plate (length of the hoop body plate 1 in the vertical direction); f is the design value of the strength of the hoop plate material.
It can be understood that the height h of the hoop body plate is in a quadratic relation with the section bending modulus W, and because the friction force applied to the hoop body plate by the pier stud is larger when the friction force is closer to the end of the hoop body plate, the end of the hoop body plate is subjected to the largest bending moment, therefore, the length of the two ends of the hoop body plate 1 in the vertical direction is longer, the bottom of the hoop body plate 1 forms a concave arc edge 11, the actual stress condition is more met, and the hoop is not easy to cause the situation that the yield of the hoop body plate 1 is damaged while bearing a large load.
According to the bolt group stress checking calculation formula:
Wherein: t is the design value of the axial force of the body hooping plate; n is the total number of single-sided bolts; m is a bending moment design value of the end part of the body hooping plate; m is the number of single-sided bolt columns; d max is the distance between the outermost bolt and the bolt group centroid axis; d i is the distance between the ith row of bolts and the centroid of the bolt group; The tensile strength of the bolt is designed.
It can be understood that increasing d i has remarkable effect on the whole tensile bending of the bolt group, and increasing the height h of the end part of the body plate can increase d i, so that the bottom edge of the body plate 1 is set to be concave arc, the lengths of the two ends of the body plate 1 in the vertical direction are longer, d i is increased, and the tensile bending strength of the bolt group can be improved. When the anchor ear bears a large load, the bolt 4 is prevented from deforming and breaking.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present utility model fall within the protection scope of the present utility model.
Claims (8)
1. A hyperbolic hoop, comprising:
The anchor ear comprises two anchor ear body plates (1), and two ends of the anchor ear body plates (1) are respectively connected and form a circular space for holding the pier stud; the bottom of the body hooping plate (1) is provided with an inward concave arc edge (11) so that the length of the two ends of the body hooping plate (1) in the vertical direction is larger than that of the middle position in the vertical direction; the two ends of the body hooping plate (1) are provided with stress parts.
2. The hyperbolic hoop according to claim 1, wherein flange plates (2) are arranged at two ends of the hoop body plate (1), and the two hoop body plates (1) are connected with each other through the flange plates (2).
3. A doubly curved hoop according to claim 2, characterised in that the length of the flange plate (2) in the vertical direction corresponds to the length of the ends of the body plate (1) in the vertical direction.
4. A doubly curved hoop according to claim 2, characterised in that the force-receiving means comprises horizontal ring plates (3), the horizontal ring plates (3) being arranged at both ends of the body plates (1) and being connected to the flange plates (2).
5. A doubly curved hoop as claimed in claim 4 characterised in that a plurality of horizontal ring plates (3) are arranged in a vertical array on the hoop body plate (1).
6. The hyperbolic hoop according to claim 5, wherein bolts (4) are arranged on the flange plates (2), and the bolts (4) are used for connecting the flange plates (2) corresponding to two ends of the hoop body plates (1).
7. A double-curved hoop according to claim 6, characterised in that several of the bolts (4) are located in the gaps of several horizontal ring plates (3) connected to the flange plate (2) and arranged in a row in the vertical direction, respectively.
8. A double-curved anchor ear according to claim 7, characterized in that two rows of bolts (4) are provided on each pair of interconnected flange plates (2).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221297622U true CN221297622U (en) | 2024-07-09 |
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