CN110725547B - Compact steel strand inhaul cable and manufacturing method thereof - Google Patents
Compact steel strand inhaul cable and manufacturing method thereof Download PDFInfo
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- CN110725547B CN110725547B CN201910988502.2A CN201910988502A CN110725547B CN 110725547 B CN110725547 B CN 110725547B CN 201910988502 A CN201910988502 A CN 201910988502A CN 110725547 B CN110725547 B CN 110725547B
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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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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The application provides a compact steel strand inhaul cable and a manufacturing method thereof, comprising the following steps: the cable body that comprises prestressing tendons to and wear the anchor end and the sealed end of cover on the cable body, anchor end and sealed end fixed connection, the prestressing tendons of the cable body and the tip rigid coupling of anchor end, its characterized in that, the anchor end includes: the device comprises an end cover, an annular anchor plate, a spacer sleeve and an anchor cup; the compact steel strand inhaul cable and the manufacturing method thereof provided by the application have the advantages that the appearance of the inhaul cable anchor cup is very compact, the inner cavity of the inhaul cable anchor cup is made into the common size of enveloping circles with the prestressed tendons of the inhaul cable, the contact area of the inner cavity is increased by arranging the wedge-shaped structure capable of dividing the pressure in multiple stages in the inner cavity of the anchor cup, the prestressed tendons are anchored by pouring the cold casting bond coating material in the anchor cup after the bond coating material is solidified at high temperature, and the technical problem that the existing extrusion type inhaul cable needs to manufacture anchor heads by extrusion equipment is solved.
Description
Technical Field
The application belongs to the technical field of steel strands, and particularly relates to a compact steel strand inhaul cable and a manufacturing method thereof.
Background
The existing compact steel strand inhaul cable and the manufacturing method thereof are that the inhaul cable anchor head is the most compact, namely the whole bundle extrusion inhaul cable, corresponding prestress rib holes are processed in the anchor spindle sleeve, the prestress rib holes on the anchor spindle sleeve are basically arranged the same as the prestress ribs on the cable body, and the prestress ribs have no divergence angle, so that the size of the anchor spindle sleeve can be compact. And (3) after the prestressed tendons pass through the corresponding holes, extruding the anchor ingot sleeve by large-scale extrusion equipment to form, and realizing the anchoring of the prestressed tendons by cold extrusion deformation. And turning teeth outside the anchor ingot sleeve after extrusion is finished, and finally carrying out surface corrosion prevention on the anchor ingot sleeve. The difficulty is high when the surface of the finished cable is preserved due to the fact that the finished cable is manufactured, and the mode is limited by extrusion equipment, and the specification of the cable can only achieve 37 holes (steel strands) at maximum.
The application patent application of publication No. CN106320609A discloses a steel strand inhaul cable and a manufacturing method thereof, comprising a cable body formed by a plurality of steel strands, and an anchoring end and a tensioning end which are connected with the end parts of the cable body, and is characterized in that the anchoring end and the tensioning end respectively comprise a taper sleeve sleeved at the central steel wire end part of each steel strand, an anchoring sleeve sleeved at the end part of the cable body and a sealing cylinder connected with the anchoring sleeve, the inside of the anchoring sleeve is filled with epoxy chill casting material, the sealing cylinder is filled with anti-corrosion material, and the end parts of the anchoring sleeves are sealed with end covers.
It can be seen that, in the steel strand inhaul cable and the manufacturing method in the prior art, a taper sleeve is placed at the end part of the central steel wire of each steel strand, so that the end part of the steel strand is expanded, the method only can expand the section part of the steel strand, and because the length of the steel strand in the anchoring section is longer, the expansion mode is limited, and gaps possibly exist between the steel strand cable bodies far away from the end part, so that the cold casting gripping material cannot fully grip the steel strand of the tendon in the grouting process, and uneven stress of the tendon is caused. In addition, in the process of cable making and grouting, the cable body is not completely vertical when being lifted for a long time, so that the cable body prestressed tendons are not aligned with the anchor cup, and the risk that part of prestressed tendons are not wrapped by cold casting wrapping materials, so that the cable prestressed tendons slip from the anchor cup is finally caused.
Disclosure of Invention
The application aims to provide a compact steel strand inhaul cable and a manufacturing method thereof, and aims to solve the problems that in the prior art, a cable force prestress rib is unevenly stressed and a cable body prestress rib is not aligned with an anchor cup.
In order to achieve the technical purpose and the technical effect, the application is realized by the following technical scheme:
the application provides a compact steel strand inhaul cable, which comprises: the cable body that comprises prestressing tendons to and wear the anchor end and the sealed end of cover on the cable body, anchor end and sealed end fixed connection, the prestressing tendons of the cable body and the tip rigid coupling of anchor end, the anchor end includes: the device comprises an end cover, an annular anchor plate, a spacer bush and an anchor cup, wherein one end of the anchor cup is opened, the other end of the anchor cup is provided with the end cover fixedly connected with the prestressed tendon, the annular anchor plate is sleeved on the prestressed tendon and wedged into the inner surface of the anchor cup, and the spacer bush is arranged on the outer surface of the prestressed tendon.
Preferably, the sealing end comprises: the cable comprises a restraining ring, a sealing cylinder, a sealing ring, a compression ring and a heat shrinkage bush, wherein the two ends of the sealing cylinder are open, the restraining ring is arranged at the joint of the sealing cylinder and an anchoring end, the heat shrinkage bush is sleeved on a cable body and fixedly connected with the outer surface of the sealing cylinder, the compression ring is arranged at the joint of the sealing cylinder and the heat shrinkage bush, and the sealing ring is sleeved on the cable body and fixedly connected with the inner surface of the sealing cylinder.
Preferably, the prestress rib is a steel strand and/or a steel wire.
Preferably, the isolating sleeve is in a hollow cylinder with a slope on the outer surface or a hollow cube or a hollow cylinder with a saw-tooth-shaped outer surface.
Preferably, the shape of the opening in the anchor cup is more than 1 wedge-shaped.
The application also provides a manufacturing method of the compact steel strand inhaul cable, which comprises the following steps:
step 1: manufacturing the prestressed tendons into cable bodies, stripping PE layers on outer rings of the cable bodies according to the anchoring length, and cleaning the prestressed tendons exposed after the PE layers of the cable bodies are stripped;
step 2: manufacturing an anchoring end, installing an annular anchor plate, and sleeving the annular anchor plate on the prestress rib of the outermost ring of the cable body in a penetrating manner; installing a spacer sleeve, sleeving the spacer sleeve on the prestressed tendons at the middle part of the cable body in a stepped spiral manner, wherein the spacer sleeves on each prestressed tendon are not contacted with each other;
step 3: pouring and solidifying, namely placing an annular anchor plate and a prestressed tendon into an anchor cup, fixedly connecting an end cover with the anchor cup, installing the annular anchor plate on the end cover, rotationally fastening a grouting tool pressing plate and the outer surface of the anchor cup, pressing the end cover by adopting an inner hexagonal screw, installing an outer hexagonal bolt to enable the anchor cup to be vertically placed, then filling the inner cavity of the anchor cup with cold casting bond-wrapping material, and vibrating by adopting a vibrator to enable the cold casting bond-wrapping material to be more compact;
step 4: installing a restraint ring after pouring, placing an anchoring end into a high-temperature curing furnace for constant-temperature curing, and curing the cold casting bond-wrapping material to form wedge bond-wrapping force, so that the anchoring effect is achieved, and rotating and twisting out an end cover and a grouting tool pressing plate after curing is finished;
step 5: the first pre-tensioning makes the prestress rib in the cable body stressed uniformly, eliminates the gap between the prestress ribs and stabilizes the elastic mode of the cable body;
step 6: the anchor head is vertically placed, the sealing cylinder at the sealing end and the anchor cup at the anchoring end are screwed up through screw thread matching, the inner cavity of the sealing cylinder is filled with sealing filling materials, then the sealing ring and the compression ring are installed on the sealing cylinder, and the sealing cylinder is vertically placed until the sealing filling materials are solidified;
step 7: and (3) carrying out secondary pretension, loading according to 40% of the nominal force of the cable body, holding the load for 10-30 minutes, eliminating the gap between the prestressed tendon in the cable body in the sealing end and the cold casting bond-coating material, turning the cover plate in place, and installing a heat-shrinkable sleeve on the cable body and the transition section of the sealing end.
Preferably, the prestress rib is a steel strand and/or a steel wire.
Preferably, when the prestressed tendon is a steel strand, pier head treatment is carried out on a steel strand center steel wire, and temporary anchoring is carried out on the annular anchor plate and the prestressed tendon; when the prestressed tendons are steel wires, randomly selecting steel wires uniformly distributed in the steel wires passing through the annular anchor plate to perform pier head treatment, so that temporary anchoring of the prestressed tendons and the annular anchor plate is realized; when the prestressed tendons are the composite of the steel strands and the steel wires, only the steel wires in the prestressed tendons passing through the annular anchor plate are subjected to pier head treatment, so that the temporary anchoring of the composite prestressed tendons and the annular anchor plate is realized.
The application has the advantages that:
the compact steel strand inhaul cable and the manufacturing method thereof provided by the application have the advantages that the shape of the inhaul cable anchor cup is very compact, the inner cavity of the inhaul cable anchor cup is made into the common size of enveloping circles with the prestressed tendons of the inhaul cable, the inner cavity of the anchor cup is provided with the wedge-shaped structure capable of realizing multistage partial pressure, the contact area of the inner cavity is increased, and the anchoring of the prestressed tendons is realized after the cold casting bond material is solidified at high temperature by pouring the cold casting bond material into the anchor cup. The mode solves the technical problem that the existing extrusion type inhaul cable needs to manufacture an anchor head through extrusion equipment.
Drawings
FIG. 1 is a schematic diagram of a compact steel strand inhaul cable according to the present application;
FIG. 2 is a schematic side view of an anchoring end according to the present application;
FIG. 3 is a schematic side view of a sealed end according to the present application;
FIG. 4a is a schematic side view of a cable according to an embodiment of the present application;
FIG. 4b is a cross-sectional view of a cable according to one embodiment of the present application;
FIG. 5a is a schematic side view of a cable according to yet another embodiment of the present application;
FIG. 5b is a cross-sectional view of a cable according to yet another embodiment of the present application;
FIG. 6a is a schematic side view of a cable according to yet another embodiment of the present application;
FIG. 6b is a cross-sectional view of a cable according to yet another embodiment of the present application;
FIG. 7 is a schematic side view of an anchor cup according to the present application;
FIG. 8 is a schematic view of the structure of the ring anchor plate according to the present application;
FIG. 9a is a schematic view of a spacer sleeve according to one embodiment of the present application;
FIG. 9b is a schematic view of a spacer sleeve according to yet another embodiment of the present application;
FIG. 9c is a schematic view of a spacer sleeve according to yet another embodiment of the present application;
FIG. 10 is a schematic view of the installation of anchor cups in the casting solidification step of the present application;
FIG. 11 is a schematic view of an end cap according to the present application;
fig. 12 is a schematic structural view of a grouting tool pressing plate according to the present application.
In the figure, 100 is a cable body, 102 is a prestressed rib, 103a is a steel strand, 103b is a steel wire, 200 is an anchoring end, 201 is an end cover, 202 is an annular anchor plate, 203 is a spacer sleeve, 204 is an anchor cup, 205 is a cold casting gripping material, 206 is a wedge-shaped, 207 is a grouting tool pressing plate, 208 is an inner hexagon screw, 209 is an outer hexagon screw, 300 is a sealing end, 301 is a constraint ring, 302 is a sealing cylinder, 303 is a sealing filling material, 304 is a sealing ring, 305 is a compression ring, and 306 is a heat-shrinkable sleeve.
Detailed Description
For the purpose of making the technical solutions and advantages of the present application more apparent, the present application will be further described in detail by way of specific embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The application provides a compact steel strand inhaul cable, as shown in figure 1, comprising: the cable body 100 formed by the prestressed tendons 102, and an anchoring end 200 and a sealing end 300 sleeved on the cable body 100, wherein the anchoring end 200 and the sealing end 300 are fixedly connected, as shown in fig. 2, the prestressed tendons 102 of the cable body 100 are fixedly connected with the end part of the anchoring end 200, and the anchoring end 200 comprises: the end cover 201, the annular anchor plate 202, the isolation sleeve 203 and the anchor cup 204, one end of the anchor cup 204 is opened, the end cover 201 fixedly connected with the prestressed tendon 102 is arranged at the other end of the anchor cup 204, the annular anchor plate 202 is sleeved on the prestressed tendon 102 in a penetrating mode and is wedged into the inner surface of the anchor cup 204, the isolation sleeve 203 is arranged on the outer surface of the prestressed tendon 102, and the anchor cup 204 can be filled with cold casting holding wrapping materials 205.
In one embodiment, as shown in fig. 3, the sealing end 300 includes: the cable body 100 and the prestress rib 102 are conveniently penetrated by the restraint ring 301, the sealing cylinder 302, the sealing ring 304, the compression ring 305 and the heat shrinkage sleeve 306, wherein the two ends of the sealing cylinder 302 are open; the restraining ring 301 is arranged at the joint of the sealing cylinder 302 and the anchoring end 200, so that the fastening effect of the sealing cylinder 302 and the anchoring end 200 can be improved; the heat-shrinkable sleeve 306 is sleeved on the cable body 100 and fixedly connected with the outer surface of the sealing cylinder 302 to realize the sealing of the transition part between the cable body 100 and the sealing cylinder 302; the compression ring 305 is disposed at the connection between the sealing cylinder 302 and the heat shrinkage sleeve 306, and the sealing ring 304 is sleeved on the cable body 100 and fixedly connected with the inner surface of the sealing cylinder 302, so that the cable body 100 is more stable inside the sealing cylinder 302, and the sealing effect of the cable body 100 at the connection between the sealing cylinder 302 and the anchoring end 200 can be effectively ensured through the structural arrangement of the sealing end 300.
In one embodiment, as shown in fig. 4a and 4b, the tendon 102 may be a steel strand 103a for practical engineering needs; in yet another embodiment, as shown in fig. 5a and 5b, the tendon 102 may be a steel wire 103b; in yet another embodiment, as shown in fig. 6a and 6b, the tendon 102 may be a composite of a steel strand 103a and a steel wire 103b; the three structural arrangements are suitable for different engineering requirements, when the prestressed tendons 102 are the steel strands 103a, pier head treatment is carried out on the central steel wires of the steel strands 103a, so that temporary anchoring of the annular anchor plate 202 and the prestressed tendons 102 is realized; when the prestress rib 102 is the steel wire 103b, randomly selecting steel wires 103b uniformly distributed in the steel wires 103b passing through the annular anchor plate 202 to perform pier head treatment, so as to realize temporary anchoring of the prestress rib 102 and the annular anchor plate 202; when the tendon 102 is a composite of the steel strands 103a and the steel wires 103b, only the steel wires 103b in the tendon 102 passing through the annular anchor plate 202 are subjected to pier head treatment, so that temporary anchoring of the composite tendon 102 and the annular anchor plate 202 is realized, and the anchoring requirements of different projects can be met.
In one embodiment, as shown in fig. 9a, 9b, and 9c, the structure of the spacer 203 is a hollow cylinder with a slope on the outer surface, or a hollow square, or a hollow cylinder with a saw-tooth shape on the outer surface, when the spacer 203 is a hollow cylinder with a slope on the outer surface, the outer surface area of the spacer 203 is increased, so that the contact surface between the chill-casting bonding material 205 and the spacer 203 is larger, and the stress of the penetrated prestressed tendons 102 is more uniform; when the isolating sleeve 203 is a hollow cube, the two ends of the isolating sleeve 203 can be better ensured to be uniformly stressed in the cold casting bond-coating material 205, and the stability of the prestressed ribs 102 is ensured; when the outer surface of the isolation sleeve 203 is a zigzag hollow cylinder, the contact degree between the outer surface of the isolation sleeve 203 and the chill casting bond coating material 205 can be better ensured, so that the isolation sleeve 203 cannot slide in the chill casting bond coating material 205, and the stability of the prestressed tendons 102 is ensured.
In one embodiment, as shown in fig. 7, the shape of the opening in the anchor cup 204 is more than 1 wedge 206, after the chill gripping material 205 is filled, the wedge 206 can achieve a partial pressure effect, the multiple wedges 206 can be combined to achieve a multi-stage partial pressure effect, the multi-stage partial pressure wedge 206 increases the contact area between the inner cavity of the anchor cup 204 and the chill gripping material 205, and the full filling of the chill gripping material 205 can effectively transfer the force on the tendon 102 to the anchor cup 204.
The application also provides a manufacturing method of the compact steel strand inhaul cable, which comprises the following steps:
step 1: manufacturing the prestressed tendons 102 into a cable body 100, stripping the PE layer on the outer ring of the cable body 100 according to the anchoring length, and cleaning the prestressed tendons 102 exposed after the PE layer of the cable body 100 is stripped;
step 2: manufacturing an anchoring end 200, installing an annular anchor plate 202, and sleeving the annular anchor plate 202 on the prestress rib 102 of the outermost ring of the cable body 100; installing a spacer 203, putting the spacer 203 on the prestressed tendons 102 at the middle position of the cable body 100 in a penetrating way, wherein the spacer 203 is spirally arranged on the prestressed tendons 102 in a step shape, and the spacers 203 on each prestressed tendon 102 are not contacted with each other;
step 3: 10-12, placing an annular anchor plate 202 and a prestressed tendon 102 into an anchor cup 204, fixedly connecting an end cover 201 with the anchor cup 204, installing the annular anchor plate 202 on the end cover 201, rotationally fastening a grouting fixture pressing plate 207 with the outer surface of the anchor cup 204, compacting the end cover 201 by adopting an inner hexagonal screw 208, installing an outer hexagonal bolt 209, vertically placing the anchor cup 204, then filling the inner cavity of the anchor cup 204 with a cold casting bond material 205, and vibrating by adopting a vibrator to enable the cold casting bond material 205 to be more compact;
step 4: installing a restraint ring 301 after pouring, placing the anchoring end 200 into a high-temperature curing furnace for constant-temperature curing, and curing the cold casting bond material 205 to form wedge bond force so as to achieve the anchoring effect, and rotating and twisting out the end cover 201 and the grouting tool pressing plate 207 after curing;
step 5: the first pre-tensioning makes the stress of the pre-stressing tendons 102 in the cable body 100 uniform, eliminates gaps among the pre-stressing tendons 102, and stabilizes the elastic mode of the cable body 100;
step 6: placing the anchor head vertically, screwing the sealing cylinder 302 of the sealing end 300 and the anchor cup 204 of the anchoring end 200 through screw thread fit, filling the inner cavity of the sealing cylinder 302 with a sealing filling material 303, installing a sealing ring 304 and a compression ring 305 on the sealing cylinder 302, and standing vertically until the sealing filling material 303 is solidified;
step 7: the second pretension is carried out, the cable body 100 is loaded according to 40 percent of the nominal force and is kept for 10 to 30 minutes, the gap between the prestressed ribs 102 in the cable body 100 and the cold casting gripping material 205 in the sealing end 300 is eliminated, the end cover 201 is screwed in place, and the heat-shrinkable sleeve 306 is arranged at the transition sections of the cable body 100 and the sealing end 300, so that the compact steel strand inhaul cable can be obtained.
In one embodiment, as shown in fig. 4a and 4b, the tendon 102 may be a steel strand 103a for practical engineering needs; in yet another embodiment, as shown in fig. 5a and 5b, the tendon 102 may be a steel wire 103b; in yet another embodiment, as shown in fig. 6a and 6b, the tendon 102 may be a composite of a steel strand 103a and a steel wire 103 b.
In one embodiment, when the tendon 102 is a steel strand 103a, pier head treatment is performed on a central steel wire of the steel strand 103a, so that temporary anchoring between the annular anchor plate 202 and the tendon 102 is realized; when the prestress rib 102 is the steel wire 103b, randomly selecting steel wires 103b uniformly distributed in the steel wires 103b passing through the annular anchor plate 202 to perform pier head treatment, so as to realize temporary anchoring of the prestress rib 102 and the annular anchor plate 202; when the tendon 102 is a composite of the steel strands 103a and the steel wires 103b, only the steel wires 103b in the tendon 102 passing through the annular anchor plate 202 are subjected to pier head treatment, so that temporary anchoring of the composite tendon 102 and the annular anchor plate 202 is realized.
Reference in the specification to "some embodiments," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in some embodiments," "in one embodiment," or "in an embodiment" in various places throughout this specification are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic described in connection with or illustrated in one embodiment may be combined, in whole or in part, with features, structures, or characteristics of one or more other embodiments without limitation, provided that the combination is not non-logical or inoperable. Additionally, the various elements of the drawings are for illustrative purposes only and are not drawn to scale.
Having thus described several aspects of at least one embodiment of this application, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be within the spirit and scope of the application.
Claims (6)
1. A compact steel strand cable comprising: the cable body that comprises prestressing tendons to and wear the anchor end and the sealed end of cover on the cable body, anchor end and sealed end fixed connection, the prestressing tendons of the cable body and the tip rigid coupling of anchor end, its characterized in that, the anchor end includes: the device comprises an end cover, an annular anchor plate, a spacer bush and an anchor cup, wherein one end of the anchor cup is opened, the other end of the anchor cup is provided with the end cover fixedly connected with the prestressed tendon, the annular anchor plate is sleeved on the prestressed tendon in a penetrating manner and is wedged into the inner surface of the anchor cup, and the spacer bush is arranged on the outer surface of the prestressed tendon; the isolating sleeve is in a structure of a hollow cylinder with a slope on the outer surface or a hollow cube or a hollow cylinder with a saw-tooth outer surface; the shape of the opening in the anchor cup is more than 1 wedge-shaped, and the anchor cup is also filled with cold casting bond wrapping materials.
2. The compact steel strand cable of claim 1, wherein the sealed end comprises: the cable comprises a restraining ring, a sealing cylinder, a sealing ring, a compression ring and a heat shrinkage bush, wherein the two ends of the sealing cylinder are open, the restraining ring is arranged at the joint of the sealing cylinder and an anchoring end, the heat shrinkage bush is sleeved on a cable body and fixedly connected with the outer surface of the sealing cylinder, the compression ring is arranged at the joint of the sealing cylinder and the heat shrinkage bush, and the sealing ring is sleeved on the cable body and fixedly connected with the inner surface of the sealing cylinder.
3. The compact steel strand cable of claim 1 or 2, wherein: the prestress rib is a steel strand and/or a steel wire.
4. A method of making the compact steel strand inhaul cable of claim 1, comprising the steps of:
step 1: manufacturing the prestressed tendons into cable bodies, stripping PE layers on outer rings of the cable bodies according to the anchoring length, and cleaning the prestressed tendons exposed after the PE layers of the cable bodies are stripped;
step 2: manufacturing an anchoring end, installing an annular anchor plate, and sleeving the annular anchor plate on the prestress rib of the outermost ring of the cable body in a penetrating manner; installing a spacer sleeve, sleeving the spacer sleeve on the prestressed tendons at the middle part of the cable body in a stepped spiral manner, wherein the spacer sleeves on each prestressed tendon are not contacted with each other;
step 3: pouring and solidifying, namely placing an annular anchor plate and a prestressed tendon into an anchor cup, fixedly connecting an end cover with the anchor cup, installing the annular anchor plate on the end cover, rotationally fastening a grouting tool pressing plate and the outer surface of the anchor cup, pressing the end cover by adopting an inner hexagonal screw, installing an outer hexagonal bolt to enable the anchor cup to be vertically placed, then filling the inner cavity of the anchor cup with cold casting bond-wrapping material, and vibrating by adopting a vibrator to enable the cold casting bond-wrapping material to be more compact;
step 4: installing a restraint ring after pouring, placing an anchoring end into a high-temperature curing furnace for constant-temperature curing, and curing cold casting bond-wrapping materials to form wedge bond-wrapping force, so that the anchoring effect is achieved, and rotating and twisting out a grouting cover plate and a grouting tool pressing plate after curing;
step 5: the first pre-tensioning makes the prestress rib in the cable body stressed uniformly, eliminates the gap between the prestress ribs and stabilizes the elastic mode of the cable body;
step 6: the anchor head is vertically placed, the sealing cylinder at the sealing end and the anchor cup at the anchoring end are screwed up through screw thread matching, the inner cavity of the sealing cylinder is filled with sealing filling materials, then the sealing ring and the compression ring are installed on the sealing cylinder, and the sealing cylinder is vertically placed until the sealing filling materials are solidified;
step 7: and (3) carrying out secondary pretension, loading according to 40% of the nominal force of the cable body, holding the load for 10-30 minutes, eliminating the gap between the prestressed tendon in the cable body in the sealing end and the cold casting bond-coating material, turning the cover plate in place, and installing a heat-shrinkable sleeve on the cable body and the transition section of the sealing end.
5. The method for manufacturing the compact steel strand inhaul cable according to claim 4, wherein: the prestress rib is a steel strand and/or a steel wire.
6. The method for manufacturing the compact steel strand inhaul cable according to claim 5, wherein: when the prestressed tendons are steel strands, pier head treatment is carried out on the central steel wires of the steel strands, and temporary anchoring is carried out on the annular anchor plates and the prestressed tendons; when the prestressed tendons are steel wires, randomly selecting steel wires uniformly distributed in the steel wires passing through the annular anchor plate to perform pier head treatment, so that temporary anchoring of the prestressed tendons and the annular anchor plate is realized; when the prestressed tendons are the composite of the steel strands and the steel wires, only the steel wires in the prestressed tendons passing through the annular anchor plate are subjected to pier head treatment, so that the temporary anchor of the composite prestressed tendons and the annular anchor plate is realized.
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| CN201910988502.2A CN110725547B (en) | 2019-10-17 | 2019-10-17 | Compact steel strand inhaul cable and manufacturing method thereof |
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| CN201910988502.2A CN110725547B (en) | 2019-10-17 | 2019-10-17 | Compact steel strand inhaul cable and manufacturing method thereof |
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| CN110725547B true CN110725547B (en) | 2023-08-11 |
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| CN111442735B (en) * | 2020-04-03 | 2022-05-31 | 广西大学 | Method for manufacturing polymer rubber-insulated-wire fiber grating strain sensor and intelligent cable |
| CN112458898A (en) * | 2020-11-02 | 2021-03-09 | 江苏法尔胜缆索有限公司 | Corrosion-resistant fatigue-resistant chilled casting anchorage device for ultra-high-strength and ultra-long stay cable |
| CN112593660A (en) * | 2020-12-11 | 2021-04-02 | 柳州欧维姆机械股份有限公司 | Extrusion anchorage sleeve inhaul cable and manufacturing method thereof |
Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998041709A1 (en) * | 1997-03-17 | 1998-09-24 | Suspa Spannbeton Gmbh | Anchoring device for a tension member, especially for use in prestressed concrete constructions |
| JP2002206235A (en) * | 2001-01-12 | 2002-07-26 | Kowa Sangyo Kk | Threaded anchorage device for anchor, capable of being mounted in free position |
| CN101078286A (en) * | 2007-07-04 | 2007-11-28 | 湖南大学 | Composite anchorage used for anchoring multiple fiber reinforcement plastic bar or dragline |
| JP2008231700A (en) * | 2007-03-16 | 2008-10-02 | Anderson Technology Kk | Flat anchorage device for post-tensioned type prestressed concrete floor slab, post-tensioned type prestressed concrete floor slab using the anchorage device, and construction method for the post-tensioned type prestressed concrete floor slab |
| CN101638892A (en) * | 2008-08-02 | 2010-02-03 | 柳州欧维姆机械股份有限公司 | Pressure-yielding anchorage device and reclaimable anchor cable |
| CN201991141U (en) * | 2011-01-27 | 2011-09-28 | 柳州欧维姆机械股份有限公司 | Prestressed steel wire socket type anchorage device |
| CN102493661A (en) * | 2011-12-30 | 2012-06-13 | 湖南大学 | Bonding anchoring method and anchoring tool for carbon fiber composite stranded wire |
| CN102535336A (en) * | 2012-03-16 | 2012-07-04 | 柳州欧维姆机械股份有限公司 | Composite prestressed bar finished guy cable and manufacturing method thereof |
| CN102587279A (en) * | 2012-03-16 | 2012-07-18 | 柳州欧维姆机械股份有限公司 | Steel strand finished stay cable and manufacturing method thereof |
| CN102587278A (en) * | 2012-03-09 | 2012-07-18 | 柳州豪姆机械有限公司 | Chill-cast steel-stranded anchor cable |
| CN202543802U (en) * | 2012-03-16 | 2012-11-21 | 柳州欧维姆机械股份有限公司 | Composite-prestressed-tendon finished inhaul cable |
| CN202543803U (en) * | 2012-03-16 | 2012-11-21 | 柳州欧维姆机械股份有限公司 | Finished cable consisting of steel strands |
| CN102926507A (en) * | 2012-11-14 | 2013-02-13 | 柳州豪姆机械有限公司 | Integral squeezing steel strand anchorage stay rope and manufacturing method thereof |
| CN202787074U (en) * | 2012-07-13 | 2013-03-13 | 江阴法尔胜住电新材料有限公司 | Steel strand wire extrusion anchor backstay cable |
| CN103074851A (en) * | 2012-12-21 | 2013-05-01 | 柳州欧维姆机械股份有限公司 | Composite strand tapered anchoring steel strand finished product cable and manufacture method thereof |
| CN204112597U (en) * | 2014-08-25 | 2015-01-21 | 柳州欧维姆机械股份有限公司 | A kind of prestressed structure ground tackle with self-locking device |
| CN104746429A (en) * | 2015-04-17 | 2015-07-01 | 柳州欧维姆机械股份有限公司 | Pull rope for landscape bridge and manufacturing method of pull rope |
| CN104818803A (en) * | 2015-04-16 | 2015-08-05 | 卢国林 | Wedge pressure anchorage device based on powder concrete application |
| CN106320609A (en) * | 2016-08-17 | 2017-01-11 | 杭州浙锚预应力有限公司 | Steel strand stayed cable and manufacturing method thereof |
| CN205954480U (en) * | 2016-08-17 | 2017-02-15 | 杭州浙锚预应力有限公司 | Packing type epoxy steel strand wires extrusion anchor cable |
| CN207686144U (en) * | 2017-12-22 | 2018-08-03 | 柳州桂桥缆索有限公司 | A kind of high stress steel strand integral bundle extruding drag-line |
| CN207828785U (en) * | 2017-12-12 | 2018-09-07 | 柳州桂桥缆索有限公司 | A kind of high stress steel strand wires extruding drag-line |
| CN109356320A (en) * | 2018-11-27 | 2019-02-19 | 东南大学 | A kind of composite connector and preparation method for prefabricated sandwich heat preservation wallboard |
| KR20190018263A (en) * | 2017-08-14 | 2019-02-22 | 주식회사 한국피씨에스 | Composite multi-cap for finishing fixtures and method for constructing prestressed concrete structures using the same |
| CN208717746U (en) * | 2017-12-26 | 2019-04-09 | 浙锚科技股份有限公司 | Carbon fiber oblique pull cable system |
| CN109844226A (en) * | 2016-08-19 | 2019-06-04 | Vsl国际股份公司 | Cable anchor with sealing element, the pre-stress system including the anchor and for installing and the method for the elongated member of tension band sheath |
| CN110258329A (en) * | 2019-06-13 | 2019-09-20 | 中铁大桥科学研究院有限公司 | A kind of FRP inhaul cable anchor and its installation method |
| CN211850918U (en) * | 2019-10-17 | 2020-11-03 | 柳州欧维姆机械股份有限公司 | Compact steel strand inhaul cable |
-
2019
- 2019-10-17 CN CN201910988502.2A patent/CN110725547B/en active Active
Patent Citations (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998041709A1 (en) * | 1997-03-17 | 1998-09-24 | Suspa Spannbeton Gmbh | Anchoring device for a tension member, especially for use in prestressed concrete constructions |
| JP2002206235A (en) * | 2001-01-12 | 2002-07-26 | Kowa Sangyo Kk | Threaded anchorage device for anchor, capable of being mounted in free position |
| JP2008231700A (en) * | 2007-03-16 | 2008-10-02 | Anderson Technology Kk | Flat anchorage device for post-tensioned type prestressed concrete floor slab, post-tensioned type prestressed concrete floor slab using the anchorage device, and construction method for the post-tensioned type prestressed concrete floor slab |
| CN101078286A (en) * | 2007-07-04 | 2007-11-28 | 湖南大学 | Composite anchorage used for anchoring multiple fiber reinforcement plastic bar or dragline |
| CN101638892A (en) * | 2008-08-02 | 2010-02-03 | 柳州欧维姆机械股份有限公司 | Pressure-yielding anchorage device and reclaimable anchor cable |
| CN201991141U (en) * | 2011-01-27 | 2011-09-28 | 柳州欧维姆机械股份有限公司 | Prestressed steel wire socket type anchorage device |
| CN102493661A (en) * | 2011-12-30 | 2012-06-13 | 湖南大学 | Bonding anchoring method and anchoring tool for carbon fiber composite stranded wire |
| CN102587278A (en) * | 2012-03-09 | 2012-07-18 | 柳州豪姆机械有限公司 | Chill-cast steel-stranded anchor cable |
| CN102535336A (en) * | 2012-03-16 | 2012-07-04 | 柳州欧维姆机械股份有限公司 | Composite prestressed bar finished guy cable and manufacturing method thereof |
| CN102587279A (en) * | 2012-03-16 | 2012-07-18 | 柳州欧维姆机械股份有限公司 | Steel strand finished stay cable and manufacturing method thereof |
| CN202543802U (en) * | 2012-03-16 | 2012-11-21 | 柳州欧维姆机械股份有限公司 | Composite-prestressed-tendon finished inhaul cable |
| CN202543803U (en) * | 2012-03-16 | 2012-11-21 | 柳州欧维姆机械股份有限公司 | Finished cable consisting of steel strands |
| CN202787074U (en) * | 2012-07-13 | 2013-03-13 | 江阴法尔胜住电新材料有限公司 | Steel strand wire extrusion anchor backstay cable |
| CN102926507A (en) * | 2012-11-14 | 2013-02-13 | 柳州豪姆机械有限公司 | Integral squeezing steel strand anchorage stay rope and manufacturing method thereof |
| CN103074851A (en) * | 2012-12-21 | 2013-05-01 | 柳州欧维姆机械股份有限公司 | Composite strand tapered anchoring steel strand finished product cable and manufacture method thereof |
| CN204112597U (en) * | 2014-08-25 | 2015-01-21 | 柳州欧维姆机械股份有限公司 | A kind of prestressed structure ground tackle with self-locking device |
| CN104818803A (en) * | 2015-04-16 | 2015-08-05 | 卢国林 | Wedge pressure anchorage device based on powder concrete application |
| CN104746429A (en) * | 2015-04-17 | 2015-07-01 | 柳州欧维姆机械股份有限公司 | Pull rope for landscape bridge and manufacturing method of pull rope |
| CN106320609A (en) * | 2016-08-17 | 2017-01-11 | 杭州浙锚预应力有限公司 | Steel strand stayed cable and manufacturing method thereof |
| CN205954480U (en) * | 2016-08-17 | 2017-02-15 | 杭州浙锚预应力有限公司 | Packing type epoxy steel strand wires extrusion anchor cable |
| CN109844226A (en) * | 2016-08-19 | 2019-06-04 | Vsl国际股份公司 | Cable anchor with sealing element, the pre-stress system including the anchor and for installing and the method for the elongated member of tension band sheath |
| KR20190018263A (en) * | 2017-08-14 | 2019-02-22 | 주식회사 한국피씨에스 | Composite multi-cap for finishing fixtures and method for constructing prestressed concrete structures using the same |
| CN207828785U (en) * | 2017-12-12 | 2018-09-07 | 柳州桂桥缆索有限公司 | A kind of high stress steel strand wires extruding drag-line |
| CN207686144U (en) * | 2017-12-22 | 2018-08-03 | 柳州桂桥缆索有限公司 | A kind of high stress steel strand integral bundle extruding drag-line |
| CN208717746U (en) * | 2017-12-26 | 2019-04-09 | 浙锚科技股份有限公司 | Carbon fiber oblique pull cable system |
| CN109356320A (en) * | 2018-11-27 | 2019-02-19 | 东南大学 | A kind of composite connector and preparation method for prefabricated sandwich heat preservation wallboard |
| CN110258329A (en) * | 2019-06-13 | 2019-09-20 | 中铁大桥科学研究院有限公司 | A kind of FRP inhaul cable anchor and its installation method |
| CN211850918U (en) * | 2019-10-17 | 2020-11-03 | 柳州欧维姆机械股份有限公司 | Compact steel strand inhaul cable |
Non-Patent Citations (1)
| Title |
|---|
| 桥梁拉索热铸锚结构设计探讨;苏强;黄芳玮;严军;张日亮;;预应力技术(04);全文 * |
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