CN110284599B - Cable clamp node for finely adjusting inclination angle of cable hole based on buffer rubber pad and construction method - Google Patents
Cable clamp node for finely adjusting inclination angle of cable hole based on buffer rubber pad and construction method Download PDFInfo
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- CN110284599B CN110284599B CN201910615195.3A CN201910615195A CN110284599B CN 110284599 B CN110284599 B CN 110284599B CN 201910615195 A CN201910615195 A CN 201910615195A CN 110284599 B CN110284599 B CN 110284599B
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- cable clamp
- cable
- string
- clamp
- buffer rubber
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a cable clamp node for finely adjusting the inclination angle of a cable hole based on buffer rubber pads and a construction method, the node comprises a string-stretching truss brace rod, an upper cable clamp, a string-stretching tensioned cable, a lower cable clamp, two buffer rubber pads, two metal sheets and a plurality of cable clamp tie bolts, the string-stretching truss brace rod is fixed on the upper cable clamp, the upper cable clamp and the lower cable clamp have the same structure and both comprise cable clamp bodies, a semicircular through groove is formed in the middle of the cable clamp body, the upper cable clamp and the lower cable clamp are oppositely arranged and connected through a cable clamp drawknot bolt, a cavity for a string to pass through by a pulling cable is enclosed between the upper cable clamp and the lower cable clamp, a metal sheet and a buffer rubber pad are arranged between the tension string and the upper and lower cable clamps, the cross sections of all the buffer rubber pads and the metal sheet are semicircular, and all the metal sheets are tightly attached to the outer surface of the tension string and the tension string under the action of the buffer rubber pads. The invention reduces the node prying force caused by the fact that the tension string is limited to rotate in the cable clamp.
Description
Technical Field
The invention belongs to the field of constructional engineering, and particularly relates to a cable clamp node for finely adjusting a cable hole inclination angle based on a buffer rubber pad and a construction method.
Background
The steel structure spatial structure has the advantages of rich and various forms, attractive building appearance, vivid and active shape and excellent artistic expressive force. The optimal structure can be selected to resist external load according to the structure stress characteristics, the structure stress is reasonable, the self weight is light, the steel consumption is small, the requirement of sustainable development is met, and the method is widely applied to the field of building engineering. The string truss structure is an important structural form of a space structure, and resists external load through the combined action of the rigid stressed upper string and the flexible tensioned lower string, so that the stress state of the member is effectively improved, and the mechanical property of the material is fully utilized. The string stretching truss is usually connected with the upper string truss through the vertical stay bar by adopting an arc-shaped stay cable, the lower cable clamp of the stay bar is in an arc shape suitable for the prestressed stay cable, and generally needs to be hinged or processed into a certain inclination angle through a cable clamp hole machine, but when the rigidity of the stay cable is changed under the action of the prestress, the arc line shape of a cable body can be properly changed, prying force is often generated on the cable clamp with higher rigidity, so that the mounting bolt is damaged in a tensile mode, therefore, the cable clamp at the connection position of the stay bar of the string stretching truss and the stay cable can allow the stay cable to rotate relatively between the upper cable clamp and the lower cable clamp in a certain amount, prying force caused by the change of the arc of the stay cable is released, and the failure of the connection node of the stay cable and the cable clamp caused by the inconsistency of the angle determined by.
Disclosure of Invention
In view of the above, the invention aims to provide a cable clamp node for finely adjusting the inclination angle of a cable hole based on a buffer rubber pad and a construction method, which improve the connection node of a vertical stay bar and a prestressed cable of the existing string truss structure and reduce the node prying force caused by limiting the rotation of the cable in the cable clamp on a string.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a cable clamp node for finely adjusting the inclination angle of a cable hole based on buffer rubber pads comprises a string truss brace rod, an upper cable clamp, a string tensioned cable, a lower cable clamp, two buffer rubber pads, two metal sheets and a plurality of cable clamp tie bolts, wherein the string truss brace rod is fixed on the upper cable clamp, the upper cable clamp and the lower cable clamp are of the same structure and respectively comprise cable clamp bodies, a semicircular through groove is formed in the middle of each cable clamp body, the upper cable clamp and the lower cable clamp are oppositely arranged and connected through the cable clamp tie bolts, a cavity for the string tensioned cable to pass through is defined between the upper cable clamp and the lower cable clamp, a metal sheet and a buffer rubber pad are respectively arranged between the string tensioned cable, the upper cable clamp and the lower cable clamp, the cross sections of all the buffer rubber pads and the metal sheets are semicircular, each metal sheet is completely attached and fixedly connected with one buffer rubber pad, and the two buffer rubber pads are respectively arranged on the upper cable, the lower cable clamp and the upper cable clamp and the lower, In the semicircular through groove of the lower cable clamp, all the metal sheets are tightly attached to the outer surface of the tensioned cable under the action of the buffer rubber pad.
Furthermore, the outer surface of each cushion rubber pad is completely attached to the corresponding semicircular through groove, and the outer surface of each metal sheet is completely attached to the inner surface of the corresponding cushion rubber pad.
Furthermore, the rubber cushion pad is connected with the upper cable clamp and the lower cable clamp and is connected with the metal sheet in a gluing way.
Furthermore, the surface of the contact surface of the metal sheet and the tensioned cable is subjected to rough treatment.
Furthermore, evenly be equipped with a plurality of bolt holes on the cable clip body.
A construction method of a cable clamp node for finely adjusting the inclination angle of a cable hole based on a buffer rubber pad comprises the following steps:
firstly, a string stretching truss brace rod, a cable clamp tie bolt, an upper cable clamp, a string stretching and pulling cable, a lower cable clamp, two buffer rubber pads and two metal sheets are processed in a factory;
step two, the cushion rubber pads and the metal sheets are bonded in a one-to-one correspondence mode, one of the metal sheets bonded with the cushion rubber pads is bonded with the upper cable clamp, the other metal sheet bonded with the cushion rubber pads is bonded with the lower cable clamp, and the upper cable clamp and the truss string support rod are connected;
tensioning the tensioned cable, and ensuring that the tensioned cable is tightly attached to the metal sheet in the upper cable clamp in the tensioning process;
and step four, aligning the upper cable clamp and the lower cable clamp, penetrating a bolt rod of a cable clamp tie bolt into a reserved bolt hole in the upper cable clamp and the lower cable clamp, screwing a nut, and fixing the upper cable clamp and the lower cable clamp.
The main node form of the node of the stay bar and the lower chord tension cable clamp of the string structure is as follows: the stay bar is fixed with the upper cable clamp, cable clamp cable holes are machined to form a certain inclination angle, the string is clamped between the upper cable clamp and the lower cable clamp by the stay cable, the upper cable clamp and the lower cable clamp are tightened by the bolt, and the connection of the stay bar and the string is realized. However, in the actual service process of the structure, the linear change of the arc line of the tension cable under the action of the external load can lead to the incongruity with the processing angle determined in the cable clamp, limit the relative rotation of the tension cable in the cable clamp, and generate prying force on the cable clamp, thus causing the node failure. Compared with the prior art, the cable clamp node capable of finely adjusting the inclination angle of the cable hole based on the buffer spring and the construction method have the following advantages:
the invention relates to a cable clamp node for finely adjusting the inclination angle of a cable hole based on a buffer rubber pad and a construction method thereof,
1. the adopted node components can be prefabricated in a factory, the parts are easy to process, and the main components can be recycled;
2. according to the invention, the buffer rubber pad is used, and the thickness of the buffer rubber pad is 4-5cm, so that the effect of prying the tension string on the cable clamp node can be effectively relieved;
3. the invention adopts the buffer rubber pad to provide resistance, reduces the relative rotation between the stay bar and the steel cable, improves the node rigidity and improves the node performance.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an exploded view of a node;
FIG. 2 is a schematic structural view of the lower cable clamp;
FIG. 3 is a schematic structural view of a cushion rubber pad;
FIG. 4 is a schematic structural view of a metal sheet;
FIG. 5 is a schematic view of a second step in the construction method of the cable clamp node;
FIG. 6 is a schematic view of a third step in the construction method of the cable clamp node;
fig. 7 is a schematic diagram of a fourth step in the construction method of the cable clamp node.
Description of reference numerals:
1-truss string brace rod, 2-cable clamp tie bolt, 3-upper cable clamp, 4-truss string, 5-lower cable clamp, 51-lower cable clamp body, 52-lower semicircular through groove, 6-buffer rubber pad and 7-metal sheet.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-4, a cable clamp node for fine adjustment of cable hole inclination angle based on buffer rubber pads comprises a tension chord truss brace rod 1, an upper cable clamp 3, a tension chord tensioned cable 4, a lower cable clamp 5, two buffer rubber pads 6, two metal sheets 7 and a plurality of cable clamp tie bolts 2, wherein the tension chord truss brace rod 1 is fixed on the upper cable clamp 3, the upper cable clamp 3 and the lower cable clamp 5 have the same structure and respectively comprise a cable clamp body, a semicircular through groove is formed in the middle of the cable clamp body, the upper cable clamp 3 and the lower cable clamp 5 are oppositely arranged and connected through the cable clamp tie bolts 2, a cavity for the tension chord tensioned cable 4 to pass through is defined between the upper cable clamp 3 and the lower cable clamp 5, a metal sheet 7 and a buffer rubber pad 6 are respectively arranged between the tension chord tensioned cable 4 and the upper and lower cable clamps, the cross sections of all the buffer rubber pads 6 and the metal sheets 7 are semicircular, the thickness of the cushion rubber pad is 4-5cm, each metal sheet 7 is completely attached and fixedly connected with one cushion rubber pad 6, the two cushion rubber pads 6 are respectively arranged in the semicircular through grooves of the upper cable clamp and the lower cable clamp, and all the metal sheets 7 are tightly attached to the outer surface of the tensioned cable 4 under the action of the cushion rubber pads 6.
Because the upper cable clamp 3 and the lower cable clamp 5 have the same structure, the following cable clamp 5 is taken as an example and is specifically described as follows: the lower cable clamp 5 comprises a lower cable clamp body 51, a lower semicircular through groove 52 is formed in the middle of the lower cable clamp body 51, and a plurality of bolt holes are uniformly formed in the lower cable clamp body 51.
The outer surface of each cushion rubber pad 6 is completely attached to the corresponding semicircular through groove, and the outer surface of each metal sheet 7 is completely attached to the inner surface of the corresponding cushion rubber pad 6.
The rubber cushion pad 6 is connected with the upper cable clamp and the lower cable clamp by glue joint, and the rubber cushion pad 6 is connected with the metal sheet 7 by glue joint.
The contact surface of the metal sheet 7 and the tension cable 4 is roughened, so that the metal sheet 7 can be conveniently held on the tension cable 4.
As shown in fig. 5-7, a construction method of a cable clamp node based on fine adjustment of the inclination angle of a cable hole of a cushion rubber pad is characterized in that: the method comprises the following steps:
firstly, processing a string stretching truss brace rod 1, a cable clamp tie bolt 2, an upper cable clamp 3, a string stretching and pulling cable 4, a lower cable clamp 5, two cushion rubber pads 6 and two metal sheets 7 in a factory;
step two, correspondingly gluing the buffer rubber pads 6 and the metal sheets 7 one by one, gluing one of the metal sheets 7 which is glued with the buffer rubber pads with the upper cable clamp 3, gluing the other metal sheet 7 which is glued with the buffer rubber pads with the lower cable clamp 5, and connecting the upper cable clamp 3 with the truss string support rod 1;
tensioning the tensioned cable 4, and ensuring that the tensioned cable 4 is tightly attached to the metal sheet 7 in the upper cable clamp 3 in the tensioning process;
and step four, aligning the upper cable clamp 3 with the lower cable clamp 5, penetrating a bolt rod of the cable clamp tie bolt 2 into a bolt hole reserved in the upper cable clamp and the lower cable clamp, screwing a nut, and fixing the upper cable clamp and the lower cable clamp.
Before the cable clamp drawknot bolt 2 is fixed, whether a tension string is tightly attached to the metal sheet 7 by the stay cable 4 or not needs to be strictly checked, the gluing quality needs to be checked, the nut is screwed down to fix the upper cable clamp and the lower cable clamp after the gluing quality is confirmed, and the node corrosion prevention protection is carried out.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a cable clamp node at fine setting cable hole angle of inclination based on rubber buffer pad which characterized in that: comprises a string truss brace rod (1), an upper cable clamp (3), a string tensioned cable (4), a lower cable clamp (5), two buffer rubber pads (6), two metal sheets (7) and a plurality of cable clamp tie bolts (2), wherein the string truss brace rod (1) is fixed on the upper cable clamp (3), the upper cable clamp (3) and the lower cable clamp (5) have the same structure and respectively comprise cable clamp bodies, a semicircular through groove is formed in the middle of each cable clamp body, the upper cable clamp (3) and the lower cable clamp (5) are oppositely arranged and are connected through the cable clamp tie bolts (2), a cavity for the string tensioned cable (4) to pass through is defined between the upper cable clamp (3) and the lower cable clamp (5), the metal sheets (7) and the buffer rubber pads (6) are respectively arranged between the string tensioned cable (4) and the upper cable clamp and the lower cable clamp, and the cross sections of all the buffer rubber pads (6) and the metal sheets (7) are semicircular, each metal sheet (7) is completely attached and fixedly connected with one buffer rubber pad (6), the two buffer rubber pads (6) are respectively arranged in the semicircular through grooves of the upper cable clamp and the lower cable clamp, and all the metal sheets (7) are tightly attached to the outer surface of the tensioned cable (4) under the action of the buffer rubber pads (6).
2. The cushion rubber pad-based cable clamp node for fine tuning of cable hole inclination angle of claim 1, wherein: the outer surface of each cushion rubber pad (6) is completely attached to the corresponding semicircular through groove, and the outer surface of each metal sheet (7) is completely attached to the inner surface of the corresponding cushion rubber pad (6).
3. The cushion rubber pad-based cable clamp node for fine tuning of cable hole inclination angle of claim 1, wherein: the rubber cushion pad (6) is connected with the upper cable clamp and the lower cable clamp by glue joint, and the rubber cushion pad (6) is connected with the metal sheet (7) by glue joint.
4. The cushion rubber pad-based cable clamp node for fine tuning of cable hole inclination angle of claim 2, wherein: the surface of the contact surface of the metal sheet (7) and the tensioned cable (4) is roughened.
5. The cushion rubber pad-based cable clamp node for fine tuning of cable hole inclination angle of claim 2, wherein: a plurality of bolt holes are uniformly arranged on the cable clamp body.
6. The construction method of the cable clamp joint based on the cushion rubber pad for finely adjusting the inclination angle of the cable hole as claimed in claim 1, is characterized in that: the method comprises the following steps:
firstly, a string stretching truss brace rod (1), a cable clamp tie bolt (2), an upper cable clamp (3), a string stretching tensioned cable (4), a lower cable clamp (5), two buffer rubber pads (6) and two metal sheets (7) are processed in a factory;
step two, the cushion rubber pads (6) and the metal sheets (7) are bonded in a one-to-one correspondence mode, one metal sheet (7) which is bonded with the cushion rubber pads is bonded with the upper cable clamp (3), the other metal sheet (7) which is bonded with the cushion rubber pads is bonded with the lower cable clamp (5), and the upper cable clamp (3) and the truss string support rod (1) are connected;
tensioning the tensioned cable (4), and ensuring that the tensioned cable (4) is tightly attached to the metal sheet (7) in the upper cable clamp (3) in the tensioning process;
and step four, aligning the upper cable clamp (3) with the lower cable clamp (5), penetrating a bolt rod of a cable clamp tie bolt (2) into a reserved bolt hole in the upper cable clamp and the lower cable clamp, screwing a nut, and fixing the upper cable clamp and the lower cable clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615195.3A CN110284599B (en) | 2019-07-09 | 2019-07-09 | Cable clamp node for finely adjusting inclination angle of cable hole based on buffer rubber pad and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615195.3A CN110284599B (en) | 2019-07-09 | 2019-07-09 | Cable clamp node for finely adjusting inclination angle of cable hole based on buffer rubber pad and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN110284599A CN110284599A (en) | 2019-09-27 |
| CN110284599B true CN110284599B (en) | 2021-02-19 |
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| CN201910615195.3A Expired - Fee Related CN110284599B (en) | 2019-07-09 | 2019-07-09 | Cable clamp node for finely adjusting inclination angle of cable hole based on buffer rubber pad and construction method |
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| CN113668707A (en) * | 2021-08-05 | 2021-11-19 | 烟台大学 | Saddle surface single-layer cross cable net structure connecting node |
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| JP2881281B2 (en) * | 1994-03-09 | 1999-04-12 | 東京製綱株式会社 | Clamp structure for fastening the middle part of the cable |
| WO2004057112A1 (en) * | 2002-12-19 | 2004-07-08 | Yincheng Hou | Dehumidification protecting system for main cables on suspension bridges |
| CN201460033U (en) * | 2009-07-16 | 2010-05-12 | 上海宝冶建设有限公司 | Relative sliding structure for mounting pull cable and cable clamp |
| CN201614549U (en) * | 2010-03-17 | 2010-10-27 | 华南理工大学 | Composite cable clamp |
| CN202298923U (en) * | 2011-09-23 | 2012-07-04 | 上海利都五金制品有限公司 | Equidistant clip |
| CN103711204A (en) * | 2013-12-08 | 2014-04-09 | 北京工业大学 | Welding-free cable support joint device in prestressed steel structure field |
| CN106400981A (en) * | 2016-09-30 | 2017-02-15 | 上海建筑设计研究院有限公司 | Cable clamp |
| CN207227955U (en) * | 2017-09-04 | 2018-04-13 | 中交武汉港湾工程设计研究院有限公司 | A kind of knotted rope vibration absorber |
| CN108755411A (en) * | 2018-06-21 | 2018-11-06 | 柳州欧维姆机械股份有限公司 | A kind of bridge cable anti-collision structure |
| CN108561505A (en) * | 2018-06-22 | 2018-09-21 | 杨维国 | A kind of three valve type cord clip apparatus and its application method considering cable body durability |
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2019
- 2019-07-09 CN CN201910615195.3A patent/CN110284599B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200943183Y (en) * | 2006-08-01 | 2007-09-05 | 方志 | Clamping piece type anchorage for fibre reinforced plastic backstay |
| CN102888896A (en) * | 2012-10-26 | 2013-01-23 | 浙江精工钢结构有限公司 | High-vanadium round wire tendon rope clamp as well as manufacturing process and design method thereof |
| CN107905090A (en) * | 2017-12-14 | 2018-04-13 | 浙江万瑞建设有限公司 | A kind of municipal administration bridge earthquake resistance structure and construction method |
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| CN110284599A (en) | 2019-09-27 |
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