CN114215184A - Rear locking device for steel cable clamp and construction method thereof - Google Patents
Rear locking device for steel cable clamp and construction method thereof Download PDFInfo
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- CN114215184A CN114215184A CN202111639404.1A CN202111639404A CN114215184A CN 114215184 A CN114215184 A CN 114215184A CN 202111639404 A CN202111639404 A CN 202111639404A CN 114215184 A CN114215184 A CN 114215184A
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- clamping piece
- cable
- cable clamp
- steel
- steel cable
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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
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
- E04G21/14—Conveying or assembling building elements
Abstract
The invention discloses a post-locking device of a steel cable clamp and a construction method thereof. During construction, the steel cable tensioning is waited for firstly, and when the steel cable tensioning is finished and enters a stable state after the relative displacement of the steel cable tensioning and the cable clamp is finished, the upper clamping piece and the lower clamping piece on one side of the cable clamp are used for clamping the steel cable, meanwhile, the upper clamping piece and the lower clamping piece are connected through the locking structure and are initially screwed, then the clamping pieces and the steel cable tensioning and cable clamp are tightly pushed, the locking structure is screwed, the other side is clamped according to the same steps, and the steel cable tensioning and cable clamp is locked. The locking device is simple in structure and low in construction difficulty, and can lock the cable clamp and the stay cable after the steel stay cable is tensioned and the stay cable and the cable clamp are displaced relatively, so that the local stress increase caused by the relative displacement of the stay cable and the cable clamp in the tensioning process is avoided, and the structural safety is ensured.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a rear locking device of a steel cable clamp and a construction method thereof.
Background
The cable structure has been widely used in construction engineering due to its advantages of light dead weight, short construction period, high building appearance plasticity, etc. At present, most cable structures are composed of steel members with high rigidity and high-strength cables, wherein the high-strength cables are connected by adopting cable clamps and the steel members.
The high-strength inhaul cable clamp consists of an outer clamping plate and an inner cable groove. During installation, the cable groove bolt is firstly screwed and fixed on the inhaul cable, then the external clamping plate bolt is screwed to fix the cable groove, and finally the external clamping plate and the steel member are welded and fixed. Due to the special structure of the cable clamp, a construction method of 'locking before and tensioning after' is mostly adopted in the traditional construction, namely, the position of the cable clamp is estimated through calculation, measurement and other means, the cable clamp is marked on a inhaul cable, then the cable clamp is arranged in a specified position to be screwed and locked, the cable clamp and a steel member are welded and fixed, and finally the structure is tensioned. However, in many projects, the cable clamp and the cable can generate relative displacement during the tensioning process of the cable. If the traditional construction method of 'locking before tensioning' is adopted, the local stress at the joint of the cable clamp and the steel member is increased, and the structure safety is influenced.
In view of the above situation, the application provides a post-locking device for a steel cable clamp and a construction method, which solve the problem of relative displacement between the steel cable clamp and a steel cable in the steel cable tensioning construction process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a post-locking device for a steel cable clamp and a construction method thereof, wherein the post-locking device is simple in structure and low in construction difficulty, and can lock the cable clamp and a cable after the steel cable is tensioned and the cable clamp are displaced relatively, so that the local stress increase caused by the relative displacement of the cable and the cable clamp in the tensioning process is avoided, and the structural safety is ensured.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a locking device behind steel cable clip, includes clamping piece and lower clamping piece, go up the clamping piece with the clamping piece is the board that a cross-section is "omega" type down, go up the clamping piece with be provided with locking structure down between the clamping piece.
The upper clamping piece and the lower clamping piece are made of steel plates with omega-shaped sections, and the steel plates can be integrally cast by steel castings. During construction, the steel cable is firstly waited for being tensioned and finished, and when the steel cable enters a stable state after being displaced relative to the cable clamp, the upper clamping piece and the lower clamping piece on one side of the cable clamp the steel cable, meanwhile, the upper clamping piece and the lower clamping piece are connected through the locking structure and are initially screwed, then the clamping pieces and the steel cable clamp are tightly jacked, the locking structure is screwed, finally, the upper clamping piece and the lower clamping piece on the other side of the steel cable clamp are installed through the same method, and the steel cable clamp is locked.
Furthermore, the locking structure adopts big hexagon bolts, go up the clamping piece with be provided with on the clamping piece down a plurality of be used for with big hexagon bolt complex bolt hole. The upper clamping piece and the lower clamping piece are connected by adopting the high-strength large hexagon bolt, so that the structure is stable and the strength is high.
Further, the inner side surfaces of the upper clamping piece and the lower clamping piece are processed into frosted surfaces so as to increase the friction coefficient between the inner side surfaces and the steel stay cable.
Further, go up the clamping piece with the lateral surface of lower clamping piece and collet contact sets up to the planishing face, is convenient for push up tightly with the collet contact. The contact surface with the locking clip should be planed and pressed tightly to prevent local stress concentration.
Furthermore, the omega-shaped plate is designed according to the diameter of the steel cable so as to ensure that the distance between the upper clamping piece and the lower clamping piece is greater than the sum of the deformation of the upper clamping piece and the lower clamping piece when the locking structure is screwed down after the upper clamping piece and the lower clamping piece are fixed.
The post-locking construction method adopting the locking device comprises the following steps:
(1) the cable groove of the cable clamp is arranged at the estimated position of the steel cable, then the bolt of the cable groove is initially screwed to ensure that the cable groove and the steel cable can realize relative sliding under the action of external force, and then the external clamp plate of the cable clamp is arranged and the bolt of the external clamp plate is screwed to fix;
(2) loading the steel cable into a specified position, welding and fixing the cable clamp and the steel member, and then tensioning the steel cable;
(3) after the steel cable is tensioned, the structure is kept still and observed for a period of time until the relative displacement of the steel cable and the cable clamp is completed, and the steel cable enters a stable state;
(4) clamping an upper clamping piece and a lower clamping piece of the locking device on a steel inhaul cable on one side of a cable clamp, fixing by using a large hexagon bolt, and then primarily screwing the large hexagon bolt;
(5) the upper clamping piece and the lower clamping piece on one side of the cable clamp are tightly propped against the cable clamp, and then the large hexagon bolt is screwed;
(6) clamping an upper clamping piece and a lower clamping piece of the locking device on the steel inhaul cable on the other side of the cable clamp, fixing by using a large hexagon bolt, and then primarily screwing the large hexagon bolt;
(7) the upper clamping piece and the lower clamping piece on the other side of the cable clamp are tightly propped against the cable clamp, and then the large hexagon bolt is screwed, so that the steel cable clamp is locked.
Furthermore, after the upper clamping piece and the lower clamping piece are initially screwed, the upper clamping piece, the lower clamping piece and the cable clamp are strictly pressed tightly, and then the final screwing of the bolt is completed, so that the locking effect is ensured.
In conclusion, the invention has the following beneficial effects:
(1) the construction method for locking the cable clamp after the cable clamp provided by the invention can realize that the cable clamp is firstly tensioned and then locked in the tensioning construction of the cable structure, and effectively solves the problem of local stress increase caused by relative displacement of a steel cable and the cable clamp in the tensioning construction of the cable structure;
(2) the steel cable clamp locking device provided by the invention is simple to operate and high in installation efficiency;
(3) the installation method provided by the invention is convenient to operate, low in construction difficulty and high in installation efficiency, and can effectively guarantee the construction progress.
Drawings
FIG. 1 is a schematic view of the components of the locking device of the present invention;
FIG. 2 is a schematic view of a locking clip structure used in the present invention;
FIG. 3 is a front view of FIG. 2;
fig. 4 is a schematic view of the installation and use state of the present invention.
Description of the labeling: 1. an upper clamping piece; 2. a lower clamping piece; 3. a large hexagon bolt; 4. locking and clamping; 5. bolt holes; 6. just pulling the lock; 7. a cable clamp outer clip; 8. a cable groove; 9. a stiffening plate; 10. and (4) a groove.
Detailed Description
The following description will be made with reference to fig. 1 to 4 for a concrete embodiment of a post-locking device for a steel cable clamp and a construction method thereof according to the present invention.
The utility model provides a dead device of locking behind steel cable clip, includes following device: the clamping device comprises an upper clamping piece 1, a lower clamping piece 2, a large hexagon bolt 3 and a cable clamp 4. The upper clamping piece 1 and the lower clamping piece 2 are omega-shaped steel plates, the inner diameter of a semicircular groove 10 in the middle of the upper clamping piece and the lower clamping piece is the same as the radius of the steel cable 6, and the inner wall of the groove 10 is completely attached to the surface of the steel cable 6 when the upper clamping piece and the lower clamping piece clamp the steel cable 6. The depth of the groove 10 is slightly smaller than the radius of the steel cable so as to ensure that a certain gap still exists between the upper clamping piece 1 and the lower clamping piece 2 after the bolt is screwed down.
The inner walls of the grooves 10 of the upper clamping piece 1 and the lower clamping piece 2 need to be polished to be frosted so as to increase the friction coefficient of the contact surface of the grooves 10 and the steel cable.
A plurality of bolt holes 5 are formed in the two sides of the groove 10 of the upper clamping piece 1 and the lower clamping piece 2, and the number of the bolt holes is determined according to the number of bolts required by calculation.
The specification of the large hexagon bolt 3 is determined according to the stress of the node and the friction coefficient between the contact surface of the groove 10 and the steel cable 6.
The post-locking construction method adopting the locking device mainly comprises the following operation steps:
(1) installing a cable groove 8 of the steel cable clamp to the estimated position of the steel cable 6, primarily screwing a bolt of the cable groove to ensure that the cable groove 8 and the steel cable 6 can relatively slide under the action of external force, then installing an external clamping piece 7 of the steel cable clamp, and screwing the bolt of the external clamping piece;
(2) installing the steel inhaul cable 4 to a specified position, and then welding and fixing the external clamp plate 7 and the stiffening plate 9 of the cable clamp and the steel member;
(3) stretching the steel cable 6, standing and observing for a period of time after the stretching is finished until the direct relative displacement between the steel cable 6 and the cable clamp 4 is finished, and achieving a stable state;
(4) clamping a steel cable 6 by an upper clamping piece 1 and a lower clamping piece 2 at one side of a cable clamp 4, fixing by a large hexagon bolt 3, and then primarily screwing the bolt 3;
(5) the clamping pieces 1 and 2 on one side of the cable clamp 4 are tightly propped against the cable clamp 4, and then the large hexagon bolt 3 is screwed down to complete the unilateral locking of the cable clamp;
(6) clamping a steel inhaul cable 6 on the other side of the cable clamp 4 by using an upper clamping piece 1 and a lower clamping piece 2, fixing by using a large hexagon bolt 3, and then primarily screwing the bolt 3;
(7) the upper clamping piece 1 and the lower clamping piece 2 on the other side of the cable clamp 4 are tightly propped against the cable clamp 4, and then the large hexagon bolt 3 is screwed, so that the steel cable clamp 4 is locked.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The utility model provides a device is died to locking behind steel cable clip which characterized in that: the clamping device comprises an upper clamping piece and a lower clamping piece, wherein the upper clamping piece and the lower clamping piece are both plates with omega-shaped sections, and a locking structure is arranged between the upper clamping piece and the lower clamping piece.
2. The steel cable clamp after-locking device of claim 1, wherein: the locking structure adopts big hexagon bolts, go up the clamping piece with be provided with on the clamping piece down a plurality of be used for with big hexagon bolt complex bolt hole.
3. The steel cable clamp after-locking device of claim 1, wherein: the inner side surfaces of the upper clamping piece and the lower clamping piece are processed into frosted surfaces so as to increase the friction coefficient of the inner side surfaces.
4. The steel cable clamp after-locking device of claim 1, wherein: go up the clamping piece with the lateral surface that lower clamping piece and collet contacted sets up to the planishing face, is convenient for and collet contact top tightly.
5. The steel cable clamp after-locking device of claim 1, wherein: the omega-shaped plate is designed according to the diameter of the steel cable so as to ensure that the distance between the upper clamping piece and the lower clamping piece is greater than the sum of the deformation of the upper clamping piece and the lower clamping piece when the locking structure is screwed down after the upper clamping piece and the lower clamping piece are fixed.
6. The construction method of the after-locking using the locking device of any one of claims 1 to 5, characterized in that: comprises the following steps of (a) carrying out,
(1) the cable groove of the cable clamp is arranged at the estimated position of the steel cable, then the bolt of the cable groove is initially screwed to ensure that the cable groove and the steel cable can realize relative sliding under the action of external force, and then the external clamp plate of the cable clamp is arranged and the bolt of the external clamp plate is screwed to fix;
(2) loading the steel cable into a specified position, welding and fixing the cable clamp and the steel member, and then tensioning the steel cable;
(3) after the steel cable is tensioned, the structure is kept still and observed for a period of time until the relative displacement of the steel cable and the cable clamp is completed, and the steel cable enters a stable state;
(4) clamping an upper clamping piece and a lower clamping piece of the locking device on a steel inhaul cable on one side of a cable clamp, fixing by using a large hexagon bolt, and then primarily screwing the large hexagon bolt;
(5) the upper clamping piece and the lower clamping piece on one side of the cable clamp are tightly propped against the cable clamp, and then the large hexagon bolt is screwed;
(6) clamping an upper clamping piece and a lower clamping piece of the locking device on the steel inhaul cable on the other side of the cable clamp, fixing by using a large hexagon bolt, and then primarily screwing the large hexagon bolt;
(7) the upper clamping piece and the lower clamping piece on the other side of the cable clamp are tightly propped against the cable clamp, and then the large hexagon bolt is screwed, so that the steel cable clamp is locked.
7. The post-lock construction method according to claim 6, wherein: after the upper clamping piece and the lower clamping piece are initially screwed, the upper clamping piece, the lower clamping piece and the cable clamp are strictly jacked, and then the final screwing of the bolt is completed, so that the locking effect is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639404.1A CN114215184B (en) | 2021-12-29 | 2021-12-29 | Construction method for post-locking device by adopting steel inhaul cable clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111639404.1A CN114215184B (en) | 2021-12-29 | 2021-12-29 | Construction method for post-locking device by adopting steel inhaul cable clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114215184A true CN114215184A (en) | 2022-03-22 |
| CN114215184B CN114215184B (en) | 2023-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111639404.1A Active CN114215184B (en) | 2021-12-29 | 2021-12-29 | Construction method for post-locking device by adopting steel inhaul cable clamp |
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| Country | Link |
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| CN (1) | CN114215184B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315035A (en) * | 2006-05-25 | 2007-12-06 | Se Corp | Installation method of stay cable |
| 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 |
| CN110295672A (en) * | 2019-07-09 | 2019-10-01 | 哈尔滨工业大学 | The cord clip node and construction method at the fine-tuning rope hole inclination angle based on buffer spring |
| CN111894302A (en) * | 2020-08-17 | 2020-11-06 | 哈尔滨工业大学 | Cable dismantling device and method |
| CN112376916A (en) * | 2020-11-23 | 2021-02-19 | 浙江精工钢结构集团有限公司 | Prestressed steel cable tensioning and tightening device and construction method |
-
2021
- 2021-12-29 CN CN202111639404.1A patent/CN114215184B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007315035A (en) * | 2006-05-25 | 2007-12-06 | Se Corp | Installation method of stay cable |
| 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 |
| CN110295672A (en) * | 2019-07-09 | 2019-10-01 | 哈尔滨工业大学 | The cord clip node and construction method at the fine-tuning rope hole inclination angle based on buffer spring |
| CN111894302A (en) * | 2020-08-17 | 2020-11-06 | 哈尔滨工业大学 | Cable dismantling device and method |
| CN112376916A (en) * | 2020-11-23 | 2021-02-19 | 浙江精工钢结构集团有限公司 | Prestressed steel cable tensioning and tightening device and construction method |
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| Publication number | Publication date |
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| CN114215184B (en) | 2023-06-16 |
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