CN107761572B - Stay cable hanging system and installation method thereof - Google Patents
Stay cable hanging system and installation method thereof Download PDFInfo
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- CN107761572B CN107761572B CN201711190572.0A CN201711190572A CN107761572B CN 107761572 B CN107761572 B CN 107761572B CN 201711190572 A CN201711190572 A CN 201711190572A CN 107761572 B CN107761572 B CN 107761572B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 114
- 239000010959 steel Substances 0.000 claims description 114
- 238000003466 welding Methods 0.000 claims description 30
- 239000000725 suspension Substances 0.000 claims description 27
- 239000002356 single layer Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 23
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a stay cable hanging system, comprising: the lifting device comprises a working platform arranged at the top of the cable tower and a traction pulley block arranged on the working platform; the slewing device comprises a slewing bearing arranged between the top of the cable tower and the lifting device, and a first supporting component and a second supporting component which are arranged above and below the slewing bearing. The construction difficulty of the stay cable hanging rope is reduced through a simple system structure. In addition, the invention also provides an installation method of the stay cable hanging system.
Description
[ field of technology ]
The invention relates to the technical field of civil engineering, in particular to a stay cable hanging system and a method for installing the system.
[ background Art ]
With the continuous development of road and bridge technology, cable-stayed bridges are widely used as one of the main options of large-span bridges. Among the three main components of the cable-stayed bridge (the pylon, the girder and the stay cable), there are various construction forms, and various cable-stayed bridges can be formed by the combination of different forms. Among them, the special-shaped cable-stayed bridge is different from the general cable-stayed bridge in the three aspects of construction and the clear characteristics of the special-shaped cable-stayed bridge in coordination with the surrounding environment. The special-shaped cable-stayed bridge is classified according to the modeling of the bridge tower and the diversity of the position of the bridge tower relative to the main girder, and can be divided into: there are a diagonal cable-stayed bridge, a bent-tower cable-stayed bridge, a diagonal-tower non-back-cable-stayed bridge, a suspended arch-type cable-stayed bridge, a suspended cable-stayed combination bridge, a bridge tower antisymmetric cable-stayed bridge, and the like.
In the prior art, the construction method of the suspension cable generally adopts the cooperation installation construction of a tower crane and a beam surface automobile crane, the tower crane is generally arranged in the direction of a main tower transverse bridge, the suspension cable is lifted by the tower crane through the tapping of the automobile crane and the cable releasing of the beam surface winch, and the installation of the suspension cable at the tower end is completed under the combined action of the inner guide chain and the outer guide chain of the tower and the tower crane. However, for the condition that the suspension cable is suspended after the tower crane is dismantled, an economic, safe and practical suspension cable replacement device and method are needed to be found.
[ invention ]
The primary aim of the invention is to provide a suspension cable hanging system, which reduces the difficulty of suspension cable hanging through a simple suspension cable hanging system structure.
A secondary object of the present invention is to provide a method of installing a stay cable system.
In a first aspect, the present invention provides a stay cable suspension system comprising:
the lifting device comprises a working platform arranged at the top of the cable tower and a traction pulley block arranged on the working platform;
the slewing device comprises a slewing bearing arranged between the top of the cable tower and the lifting device, and a first supporting component and a second supporting component which are arranged above and below the slewing bearing.
The slewing bearing comprises an upper disc and a lower disc which are meshed with each other; the first support assembly comprises a first thick steel plate which is bolted with the upper disc of the slewing bearing; the second support assembly includes a second thick steel plate bolted to the slewing bearing lower plate.
Further, the first support assembly further comprises a first section steel unit welded with the upper surface of the first thick steel plate; the second support assembly further includes a second section steel unit welded integrally with the lower surface of the second thick steel plate.
Specifically, the first section steel unit comprises a first I-steel and a top I-steel which are welded into a whole in a mutually perpendicular mode; the second section steel unit comprises second I-steel and bottom I-steel which are welded perpendicularly.
The bottom I-steel is manufactured according to the inclination angle of the top of the cable tower so as to level the inclination angle after being welded with the top of the cable tower.
Preferably, a stiffening plate is arranged immediately outside the I-steel.
The working platform is an inverted trapezoid prism table frame structure formed by splicing the tops of the cable towers and comprises a plurality of short chords, diagonal rods and upright rods; the short chord member, the diagonal rod and the vertical rod are connected through a gusset plate.
Further, supporting angle steel is arranged on two end faces of the traction pulley group installed on the working platform.
Preferably, the working platform is eccentrically mounted on the upper part of the slewing device.
Further, the lifting device is welded and fixed with the slewing device through a supporting shoe.
Specifically, the traction pulley block comprises a winch arranged at one end of the working platform and at least two fixed pulleys arranged at the other end of the working platform.
In a second aspect, the present invention provides a method of installing a suspension cable system, comprising the steps of installing a suspension cable system according to the first aspect:
(1) Forming leveling steel by adopting single-layer I-steel according to the inclination angle of the top of the cable tower, and welding and fixing the leveling steel with the top of the cable tower;
(2) Lifting a revolving device welded integrally below the tower to the top of the cable tower, and welding and fixing the revolving device and the leveling steel;
(3) The working platform is welded and fixed with the slewing device after assembled at the top of the cable tower, and a traction pulley group is configured;
(4) And (5) adapting to the current hanging rope position, and laying a traction rope on the lifting device.
Wherein the welding of the slewing device comprises the following steps:
adopting a single-layer I-steel as a substrate, and welding a second thick steel plate on the upper part;
bolting a slewing bearing directly above the second thick steel plate;
bolting a first thick steel plate directly above the slewing bearing;
and welding the double-layer I-steel which is mutually perpendicular to the upper surface of the first thick steel plate by adopting the double-layer I-steel as a base top.
Compared with the prior art, the invention has the following advantages:
the stay cable hanging system provided by the invention comprises a slewing device and a lifting device. The rotating device is adopted to realize that the lug plate inhaul cable adapting to the cable tower part is in different directions to rotate the lifting device in the cable hanging process; the 360-degree rotation of the working platform is realized by matching the slewing bearing with the traction pulley block. Meanwhile, the construction of the stay cable hanging rope is simple and convenient, the function is complete, the safety is high, and the construction effect is good because the construction of the working platform is simple and the stress is clear. The system provided by the invention mainly reduces the construction difficulty through a simple structure, and further adopts the bottom I-steel in the rotary device to level the inclination of the tower top, so that the problem that the construction of the overhead cable is difficult due to the inclination of the inclined tower top is solved, and the system is suitable for the construction of wider and special roads and bridges such as special-shaped cable-stayed bridges and the like.
[ description of the drawings ]
FIG. 1 is a schematic diagram of one embodiment of a stay cable system of the present invention;
FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;
FIG. 3 is a schematic diagram of a slewing device in a stay cable system according to the present invention;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is a cross-sectional view taken along the direction B-B in FIG. 3;
FIG. 6 is a schematic view of a portion of a slewing device in a stay cable system in accordance with the present invention;
FIG. 7 is a schematic diagram of a lifting device in a stay cable system according to the present invention;
FIG. 8 is a schematic view of another construction of a lifting device in a stay cable system according to the present invention;
FIG. 9 is a cross-sectional view taken along the direction A-A in FIGS. 7 and 8;
FIG. 10 is a cross-sectional view taken along the direction B-B in FIGS. 7 and 8;
FIG. 11 is a cross-sectional view taken along the direction C-C in FIGS. 7 and 8;
[ detailed description ] of the invention
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In the embodiment of the invention, a suspension cable suspension system is provided, and as shown in fig. 1 and 2, the suspension cable suspension system is suitable for the construction of suspension cable suspension cables, and further, is mainly suitable for the construction of suspension cable suspension cables of special-shaped cable-stayed bridges. In this embodiment, in order to reduce the construction degree of difficulty of suspension cable hanging rope, provide a simple, high system of security, it includes:
a slewing device 1 and a lifting device 2.
Specifically, the slewing device 1 comprises a slewing bearing 10 mounted between the cable tower top 01 and the lifting device 2, and a first supporting component 11 and a second supporting component 12 which are arranged above and below the slewing bearing 10.
The slewing bearing 10 can be classified into a single-row cross roller type single-row four-point contact ball type, a double-row reducing ball type, and a three-row roller type according to the raceway structure type, and in this embodiment, the single-row cross roller type single-row four-point contact ball type slewing bearing 10 is preferably used. Referring to fig. 1-6, the slewing bearing 10 includes an upper plate 101 and a lower plate 102 that are engaged with each other; the diameter of the upper disc 101 is smaller than that of the lower disc 102, and the two discs are used for adaptively adjusting the engagement mode based on the completion of the force transmission process, which can specifically include the engagement mode. The first support assembly 11 of the slewing bearing 1 comprises a first thick steel plate 111 which is bolted with the upper disc 101 of the slewing bearing 10, and the second support assembly 12 comprises a second thick steel plate 112 which is bolted with the lower disc 102 of the slewing bearing 10. Wherein, the soft belts of the upper disc 101 and the lower disc 102 of the slewing bearing 10 are arranged in a staggered way by 180 degrees; specifically, the diameter of the upper disc 101 of the slewing bearing 10 is smaller than that of the lower disc 102, and accordingly, the area of the first thick steel plate 111 is smaller than that of the second thick steel plate 112; the first thick steel plate 111 is used to completely cover the upper plate of the slewing bearing 10, and the second thick steel plate 112 is used to completely receive the lower plate of the slewing bearing 10 (as shown in fig. 4 and 5). The first thick steel plate 111 and the second thick steel plate 112 are fixedly connected with the slewing bearing 10 by adopting high-strength bolts 103. Further, if there is a gap between the first thick steel plate 111 and the upper disc 101 of the slewing bearing 10 and between the second thick steel plate 112 and the lower disc 102 of the slewing bearing 10, a gasket may be used to make a flat so as to prevent the bolt 103 from deforming after tightening, which affects the performance of the slewing bearing 10. Further, in the present embodiment, the first thick steel plate 111 and the second thick steel plate 112 are 30mm thick steel plates.
Further, the first support assembly 11 further includes a first section steel unit 121 integrally welded to the upper surface of the first thick steel plate 111, and the second support assembly 12 further includes a second section steel unit 122 integrally welded to the lower surface of the second thick steel plate 112. Specifically, the fusion welding between the first thick steel plate 111 and the first section steel unit 121, and the fusion welding between the second thick steel plate 112 and the second section steel unit 122 are integrally performed in a full-welded welding manner, and further, a stiffening plate 13 is additionally arranged at the connecting position to increase the stability between the two.
Wherein the first section steel unit 121 includes a first i-steel 1211 and a top i-steel 1212; the first I-steel 1211 is perpendicular to the top I-steel 1212 and is integrally welded. Further, in order to ensure the construction quality, the first i-steel 1211 and the top i-steel 1212 are welded together by full-welded welding. Further, to enhance the stability between the components, a stiffening plate 13 is disposed outside the first i-steel 1211, preferably, the stiffening plate 13 is made of a steel plate with a thickness of 350×400×10mm, and the thickness of the welding seam at each connecting portion is greater than 10mm. (as shown in FIG. 3 and 5)
Wherein the second section steel unit 122 includes a second i-steel 1221 and a bottom i-steel 1222; the second i-beam 1221 is perpendicular to the bottom i-beam 1222 and is integrally welded. Further, in order to ensure the construction quality, the second i-steel 1221 and the bottom i-steel 1222 are welded together by full-welded welding. Further, in order to enhance the stability between the components, a stiffening plate 13 is disposed on the outer side of the second i-steel 1221, preferably, the stiffening plate 13 is made of a steel plate with a thickness of 350×400×10mm, and the thickness of the welding seam at each connecting portion is greater than 10mm. In this embodiment (as shown in fig. 3 and 4), the bottom i-steel 1222 is a connecting component between the slewing device 1 and the top 01 of the cable tower, the bottom i-steel 1222 and the top 01 of the cable tower are welded together by welding seam full-welding connection, and the bottom i-steel 1222 is welded with the top cover plate of the tower top 01 and the ear plate 011 of the tower wall. Further, in this embodiment, the bottom i-steel 1222 is manufactured according to the inclination angle of the cable tower top 01, and is welded with the cable tower top 01 to level the inclination angle of the cable tower top 01. Because the welding between the bottom i-beam 1222 and the inclined tower top 01 belongs to welding on the inclination, stiffening plates 012 are added at the lower end and the top of the inclined tower top 01 to better weld with the bottom i-beam 1222 in order to further stabilize the bottom i-beam 1222 and the tower top 01 (as shown in fig. 6).
Specifically, the lifting device 2 comprises a working platform 21 mounted on the top 01 of the rope tower and a traction sheave block mounted on the working platform 21. (as shown in FIGS. 7, 8, 9, 10, 11)
Wherein, the working platform 21 is an inverted trapezoid prismatic table frame structure formed by splicing universal rods at the top 01 of the cable tower, and is preferably a scaffold structure; wherein the universal bar forms a plurality of short chords 211, diagonal bars 212 and upright bars 213 of the working platform 21, and the short chords 211, diagonal bars 212 and upright bars 213 are connected by node plates 214. As can be seen in fig. 7, 8, 9 and 10, when the trusses of the working platform 21 are spliced (as shown in fig. 9 and 10), the sectional component size of the diagonal rods 212 is smaller than the sectional component size of the diagonal rods 212 used for vertically splicing the trusses of the working platform 21 (as shown in fig. 11), and accordingly, the weight of the single piece of the diagonal rods 212 used for vertically splicing is smaller than that of the diagonal rods 212 used for vertically splicing. The adoption of the rods with different weights or types for assembling different parts of the working platform 21 is beneficial to further balancing the force distribution of the working platform 21 and enhancing the stability of the working platform 21. Further, the working platform 21 is provided with supporting angle steel 215 at two end faces of the traction sheave block to flatten the end face of the working platform 21 so as to enhance the stability of the traction sheave block. The traction sheave assembly includes a hoist 22, and fixed pulleys 231, 232. Preferably, the working platform 21 is eccentrically installed at the upper portion of the swing device 1, and in particular, the working platform 21 is eccentrically connected to the swing device 1, that is, when the swing device 1 is located at the central axis, the working platform 21 is asymmetrically installed on the swing device 1, so that the hoist 22 installed at the side of the working platform 21 which is shorter than the protruding portion of the swing device 1 and the fixed pulleys 231, 232 installed at the side of the working platform 21 which is longer than the protruding portion of the swing device 1 have stable and balanced force output when being matched to form traction force. Specifically, the fixed pulleys 231 and 232 include at least two fixed pulleys as shown in fig. 7 and 8. Wherein, when the hoist 22 is used in connection with the fixed pulley 232, it is used for lifting the stay cable (as shown in fig. 7); when the hoist 22 is connected to the fixed pulley 231, the fixed pulley 231 is used as a chain block to adjust the direction of the working platform 21, so that the whole lifting device 2 can rotate 360 ° relative to the tower top 01 (as shown in fig. 8). The number of the fixed pulleys is not limited to the protection scope of the embodiment of the invention, two fixed pulleys are selected as a preferred mode in the embodiment, and in some embodiments, the fixed pulleys can be used for completing the functions of lifting the stay cable and serving as a chain block, and can also be completed in a plurality of ways.
Wherein, the lifting device 2 is welded with the lifting device 2 through a supporting shoe 3 between the bottom of the working platform 21 and the top of the I-steel 1212 at the top of the turning device 1. The supporting shoe 3 is an inverted T-shaped structural component assembled by adopting I-steel, the bottom end of the supporting shoe is welded with the top I-steel 1212, and the top end of the supporting shoe is welded with the node plate 214 of the working platform 21. As can be seen from fig. 7 and 8, the truss at the lower end of the working platform 21 is kept with two node plates 214, one node plate 24 is biased toward the installation direction of the hoist 22, and the other node plate is located at the middle part of the truss at the lower end of the working platform 21. The gusset 214 will be used to connect with the support shoe 3. As can be seen from fig. 7 and 8, the lifting device 2 is integrally formed with the slewing device 1 in an asymmetrical configuration.
Preferably, as can be seen from fig. 7-10, when assembling the working platform 21, the node board 214 includes multiple types, which are specifically selected according to the rod members that need to be connected at different positions.
The embodiment of the invention also provides a method for installing the stay cable hanging system, which comprises the following steps of installing the stay cable hanging system in the embodiment:
(1) Forming leveling steel by adopting single-layer I-steel according to the inclination angle of the top of the cable tower, and welding and fixing the leveling steel with the top of the cable tower;
(2) Lifting a revolving device welded integrally below the tower to the top of the cable tower, and welding and fixing the revolving device and the leveling steel;
specifically, the welding of the slewing device comprises the following steps:
adopting a single-layer I-steel as a substrate, and welding a second thick steel plate on the upper part;
bolting a slewing bearing directly above the second thick steel plate;
bolting a first thick steel plate directly above the slewing bearing;
and welding the double-layer I-steel which is mutually perpendicular to the upper surface of the first thick steel plate by taking the double-layer I-steel as a base top above the substrate.
The bolting adopts high-strength bolts and quenched and tempered plain washers to carry out symmetrical continuous bolts in the direction of 180 degrees of the slewing bearing. The bolts which are symmetrically and continuously arranged in the direction of 180 degrees are adopted to ensure that the bolts on the circumference have the same pretightening force. Specifically, when bolts that are symmetrically continuous in the 180 ° direction are used, a manner is adopted in which the previous bolt position and the immediately next bolt position are perpendicular to each other.
As can be seen from the steps (1) and (2), in the embodiment of the invention, the bottom i-steel in the turning device is used as a single-layer i-steel, the top of the cable tower is welded, and the rest part of the turning device is lifted to the top of the cable tower for welding after the welding integration is completed at the bottom of the cable tower. The construction step mainly considers the condition at the top of the inclined cable tower, when the cable tower top is of an inclined structure, single-layer I-steel is preferably adopted as leveling steel to be welded with the top of the lock tower, so that after the cable tower top is leveled, the turning device is welded with the cable tower top part, and the overall stability of the system is ensured.
In this embodiment, the components in step (1) and (2) should be welded firmly when connected, so as to prevent the components from being pulled out when pulling force occurs, and further, all the components are connected by full-welded welding, and the thickness of the welding seam is greater than 10mm. Furthermore, in order to ensure construction quality, stiffening plates are additionally arranged at the connecting positions of all the parts so as to increase stability.
(3) The working platform is welded and fixed with the slewing device after assembled at the top of the cable tower, and a traction pulley group is configured;
specifically, the working platform adopts a universal rod piece to adapt to the assembly requirement of the working platform to correspondingly form a plurality of short chords, diagonal rods and vertical rods; the short chord member, the diagonal rod and the vertical rod are connected through a gusset plate. The formed working platform is of an inverted trapezoid prismatic table structure. The configuration of the traction sheave block includes the steps of: leveling two end faces of the working platform by adopting supporting angle steel; one end of the working platform is provided with a winch; at least two fixed pulleys are arranged at the other end of the working platform.
In particular, the working platform is connected to the slewing device by means of a support shoe, which completes the force conversion between slewing device and working platform.
(4) And (5) adapting to the current hanging rope position, and laying a traction rope on the lifting device.
Specifically, in the installed lifting device, the winch is located on the side, short of the whole protruding portion of the working platform, of the turning device, and the fixed pulley is located on the side, long of the whole protruding portion of the working platform, of the turning device, so that the whole stability of the lifting device is guaranteed. Wherein, when the winch is connected with the fixed pulley for use, the winch is used for lifting a stay cable (shown in figure 7); when the winch is connected with the fixed pulley for use, the fixed pulley is used as a chain block to adjust the direction of the working platform, so that the whole lifting device can rotate 360 degrees relative to the top of the cable tower (as shown in fig. 8).
The traction ropes are arranged on different fixed pulleys through the winch according to the current direction of whether the lifting device needs to be adjusted or not.
In the embodiment of the invention, a construction mode of installing a small tower crane on the top of a tower to finish suspension cable hanging in the prior art is replaced by adopting a slewing device comprising a slewing bearing and a lifting device comprising a working platform and a traction pulley group. In the embodiment provided by the invention, the structure is simple, the cost of required parts is low, the assembly is easy, and the 360-degree rotation of the suspension cable system relative to the tower top can be completed through the cooperation between the slewing bearing, the working platform and the traction pulley group, so that the problem that the lifting direction of the suspension cable is rotated due to the fact that the lug plate cables of the tower part are in different directions is solved more easily. The construction difficulty and the construction cost are reduced, and the construction quality and efficiency are improved.
Although a few exemplary embodiments of the present invention have been shown above, it will be appreciated by those skilled in the art that changes may be made in these exemplary embodiments without departing from the principles or spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (7)
1. A stay cable hanging system, comprising:
the lifting device comprises a working platform arranged at the top of the cable tower and a traction pulley block arranged on the working platform;
the slewing device comprises a slewing bearing arranged between the top of the cable tower and the lifting device, and a first supporting component and a second supporting component which are arranged above and below the slewing bearing; the slewing bearing comprises an upper disc and a lower disc which are meshed with each other; the first support assembly comprises a first thick steel plate which is bolted with the upper disc of the slewing bearing; the second support assembly comprises a second thick steel plate which is bolted with the slewing bearing lower disc;
the working platform is eccentrically arranged on the upper part of the slewing device, and the traction pulley block comprises a winch arranged at one end of the working platform, which is shorter than the protruding part of the slewing device, and at least two fixed pulleys arranged at one end of the working platform, which is longer than the protruding part of the slewing device; when the winch is connected with a fixed pulley far away from the slewing device for use, the winch is used for lifting the stay cable; when the winch is connected with the fixed pulley close to the slewing device for use, the fixed pulley is used as a chain block for adjusting the direction of the working platform, so that the whole lifting device can rotate 360 degrees relative to the tower top;
the first support assembly further comprises a first section steel unit welded with the upper surface of the first thick steel plate; the second support assembly further comprises a second section steel unit welded with the lower surface of the second thick steel plate into a whole;
the first section steel unit comprises a first I-steel and a top I-steel which are welded into a whole in a mutually vertical mode; the second section steel unit comprises second I-steel and bottom I-steel which are welded vertically;
and the bottom I-steel is manufactured according to the inclination angle of the top of the cable tower so as to level the inclination angle after being welded with the top of the cable tower.
2. The stay cable system of claim 1 wherein a stiffening plate is provided immediately outboard of the i-steel.
3. The stay cable hanging system according to claim 1, wherein the working platform is an inverted trapezoidal prismatic table frame structure formed by splicing the top of the cable tower, and comprises a plurality of short chords, inclined rods and upright rods; the short chord member, the diagonal rod and the vertical rod are connected through a gusset plate.
4. A stay cable hanging system according to claim 1 or 3, wherein the two end faces of the traction sheave mounted on the working platform are provided with supporting angle steel.
5. The stay cable hanging system of claim 1 wherein the lifting device is welded to the swivel device by a support shoe.
6. A method of installing a suspension cable suspension system according to claim 1, comprising the steps of:
(1) Forming leveling steel by adopting single-layer I-steel according to the inclination angle of the top of the cable tower, and welding and fixing the leveling steel with the top of the cable tower;
(2) Lifting a revolving device welded integrally below the tower to the top of the cable tower, and welding and fixing the revolving device and the leveling steel;
(3) The working platform is welded and fixed with the slewing device after assembled at the top of the cable tower, and a traction pulley group is configured;
(4) And (5) adapting to the current hanging rope position, and laying a traction rope on the lifting device.
7. The method of installing a suspension cable suspension system according to claim 6, wherein the welding of the swivel device comprises the steps of:
adopting a single-layer I-steel as a substrate, and welding a second thick steel plate on the upper part;
bolting a slewing bearing directly above the second thick steel plate;
bolting a first thick steel plate directly above the slewing bearing;
and welding the double-layer I-steel which is mutually perpendicular to the upper surface of the first thick steel plate by taking the double-layer I-steel as a base top above the substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711190572.0A CN107761572B (en) | 2017-11-24 | 2017-11-24 | Stay cable hanging system and installation method thereof |
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| CN201711190572.0A CN107761572B (en) | 2017-11-24 | 2017-11-24 | Stay cable hanging system and installation method thereof |
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| CN107761572A CN107761572A (en) | 2018-03-06 |
| CN107761572B true CN107761572B (en) | 2024-02-23 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0152562A2 (en) * | 1984-02-21 | 1985-08-28 | Liebherr-Werk Bischofshofen GmbH | Crane with telescopic tower |
| CN201598570U (en) * | 2009-12-08 | 2010-10-06 | 中铁大桥(郑州)缆索有限公司 | Cable-stayed bridge cableway erecting equipment |
| CN102444086A (en) * | 2011-10-14 | 2012-05-09 | 中铁大桥局股份有限公司 | Cable hanging system for inclined stay cable of bridge and cable hanging method for inclined stay cable of bridge |
| CN102556864A (en) * | 2011-12-31 | 2012-07-11 | 浙江德英建设机械制造有限公司 | Pre-warning device for safety inspection to tower body of tower crane |
| CN203269403U (en) * | 2013-05-23 | 2013-11-06 | 郑州科润机电工程有限公司 | Low-level slewing portal luffing-jib crane |
| CN204039920U (en) * | 2013-11-19 | 2014-12-24 | 中建三局建设工程股份有限公司 | A kind of tower crane lifting reeving device |
| CN205205685U (en) * | 2015-12-14 | 2016-05-04 | 中交一公局第三工程有限公司 | Span wire pier is function portal device at most |
-
2017
- 2017-11-24 CN CN201711190572.0A patent/CN107761572B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0152562A2 (en) * | 1984-02-21 | 1985-08-28 | Liebherr-Werk Bischofshofen GmbH | Crane with telescopic tower |
| CN201598570U (en) * | 2009-12-08 | 2010-10-06 | 中铁大桥(郑州)缆索有限公司 | Cable-stayed bridge cableway erecting equipment |
| CN102444086A (en) * | 2011-10-14 | 2012-05-09 | 中铁大桥局股份有限公司 | Cable hanging system for inclined stay cable of bridge and cable hanging method for inclined stay cable of bridge |
| CN102556864A (en) * | 2011-12-31 | 2012-07-11 | 浙江德英建设机械制造有限公司 | Pre-warning device for safety inspection to tower body of tower crane |
| CN203269403U (en) * | 2013-05-23 | 2013-11-06 | 郑州科润机电工程有限公司 | Low-level slewing portal luffing-jib crane |
| CN204039920U (en) * | 2013-11-19 | 2014-12-24 | 中建三局建设工程股份有限公司 | A kind of tower crane lifting reeving device |
| CN205205685U (en) * | 2015-12-14 | 2016-05-04 | 中交一公局第三工程有限公司 | Span wire pier is function portal device at most |
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| Publication number | Publication date |
|---|---|
| CN107761572A (en) | 2018-03-06 |
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