CN114352040B - Lifting device for ring cable net with branched inclined cables and construction method - Google Patents
Lifting device for ring cable net with branched inclined cables and construction method Download PDFInfo
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- CN114352040B CN114352040B CN202210266840.7A CN202210266840A CN114352040B CN 114352040 B CN114352040 B CN 114352040B CN 202210266840 A CN202210266840 A CN 202210266840A CN 114352040 B CN114352040 B CN 114352040B
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Abstract
The invention discloses a lifting device and a construction method for a ring cable net with a bifurcated oblique cable, which are used for lifting construction of a ring cable net structure with the bifurcated oblique cable, wherein the lifting device comprises a lifting group unit, the lifting group unit comprises a first lifting device and a second lifting device, and each lifting group unit comprises the first two lifting devices and the second two lifting devices; the first lifting device and the second lifting device are both arranged on the ring beam, the first lifting device is connected with the ring cable, and the second lifting device is connected with the ring cable through an inclined cable. The invention firstly lifts the ring cable and fixes the ring cable at high altitude, and then lifts the inclined cable to complete construction, thereby not only ensuring the forming precision of the cable net structure, but also avoiding the problem that the whole cable net is disturbed due to uneven stress when the inclined cable is directly lifted, and having the advantages of stable construction process and high safety.
Description
Technical Field
The invention relates to the technical field of construction of cable net structures in large span spaces, in particular to a lifting device and a construction method for a ring cable net with a bifurcated inclined cable.
Background
The cable structure is one of large-span prestressed steel structure systems, and is a full-tension system with extremely high structural efficiency. The cable structure has the characteristics of various shapes and unique design, but a plurality of creative structural designs have a plurality of problems in construction.
Especially for the ring cable and cable net structure with the bifurcate oblique cables, the oblique cables of the cable net structure are converged at the ring cable and cable clamp instead of the axis of the ring cable structure, so when the oblique cables are lifted along the axial direction of the oblique cables, the lifting force directly acts on the ring cable and cable clamp, the cable net in a flexible state is easily uncontrollably deformed, the forming precision of the cable net is difficult to ensure, meanwhile, the cable clamp is damaged due to the torsion of the cable clamp caused by the nonuniformity of the lifting force, and the construction difficulty is greatly improved. And the shape of the cable net is difficult to adjust because the cable net structure has almost no rigidity before the pretension is applied to the system. The present invention solves the above problems by providing a lifting device and a construction method for a looped cable net with a bifurcated stay cable.
Disclosure of Invention
The invention provides a lifting device and a construction method for a ring cable net with a branched oblique cable, which are used for safely lifting the ring cable net with the branched oblique cable.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a lifting device for a loop cable net with branched oblique cables is used for lifting construction of a loop cable net structure with branched oblique cables and comprises lifting group units, wherein each lifting group unit comprises a first lifting device and a second lifting device; the first lifting device and the second lifting device are both arranged on the ring beam, the first lifting device is connected with the ring cable, and the second lifting device is connected with the ring cable through an inclined cable;
the lifting group unit comprises two lifting fixed points and two ring cable clamps, and the lifting fixed points and the ring cable clamps are correspondingly arranged; the lifting fixing points are positioned on the ring beam, each lifting fixing point is connected with a first lifting device and two second lifting devices, and the two second lifting devices respectively belong to two lifting group units; the loop cable clips are arranged on the loop cables, each loop cable clip is connected with a first lifting device and two second lifting devices, and the two second lifting devices respectively belong to two lifting group units; the two lifting devices are arranged between the lifting fixed points of the lifting group units and the ring cable clips in a staggered mode.
Furthermore, the first lifting device comprises a first lifting end, a connecting piece, a first fixed end and a first fixed end, the first fixed end is arranged on the first lifting fixed point, the lifting end is arranged on the first fixed end, the first fixed end is connected with the first ring cable clamp, and the connecting piece is positioned between the lifting end and the first fixed end.
Further, hoisting device two includes fixing base two, top pushes away end and stiff end two, fixing base two is established on promoting the fixed point, stiff end two is connected on fixing base two, top pushes away the end and is connected with stiff end two, the halyard is connected with top pushes away the end.
Furthermore, the lifting end comprises a lifting jack and a rotating frame, the rotating frame is arranged on the first fixing seat, the lifting jack is connected to the rotating frame, and the connecting piece penetrates through the rotating frame to be connected with the lifting jack.
Further, the pushing end comprises a pushing jack and a bearing frame, the fixed end II comprises a connecting fork lug and a stranded wire, one end of the stranded wire penetrates through the bearing frame to be connected with the pushing jack, the other end of the stranded wire is connected with the connecting fork lug, and the connecting fork lug is connected with the fixed seat II.
Further, the first fixing seat comprises a base, an installation limiting plate and an angle limiting plate, the angle limiting plate is arranged in the base and used for limiting the rotating angle range of the rotating frame, and the installation limiting plate is arranged on the base and used for limiting the position of the rotating frame.
Furthermore, the inclined cable comprises cable clamps and a cable body, the cable clamps are arranged at two ends of the cable body, the cable clamp on the fixed end of the cable body is connected to the ring cable clamp, the lifting end of the cable body penetrates through the pushing end, and the cable clamp on the lifting end is located in the second lifting device.
Furthermore, an inclined cable mounting hole and a lifting mounting hole are formed in the second fixing seat, and the connecting fork lug is connected into the lifting mounting hole; the fixed ends II are arranged in pairs and connected to the same pushing end.
A construction method of a lifting device for a looped cable net with a bifurcated stay, comprising the steps of:
s1, determining the lifting parameters: determining various parameters of the first lifting device and the second lifting device according to the stress parameters of the cable net structure, and performing simulation calculation analysis;
s2, determining cable net construction parameters: according to the calculation result of S1, carrying out simulation calculation and simulation analysis on the construction process of the cable net structure, and determining the configuration of the cable net structure in the construction process;
s3, assembling the device: firstly, assembling a cable net structure, and then sequentially assembling a first lifting device and a second lifting device;
s4, lifting the lifting device: lifting the looped cable to a corresponding height by a first lifting device according to the calculation result of S2;
s5, lifting operation of the second lifting device: according to the calculation result of S2, the inclined cable is lifted to a corresponding height through the second lifting device, and the inclined cable is fixedly connected with the second fixing seat;
s6, detecting the skew cable parameters; according to the calculation result of S2, detecting whether the tension force value of the oblique cable meets the requirement through a second lifting device;
s7, dismantling the device; and after the tension force value of the inclined cable meets the requirement, the first lifting device and the second lifting device are removed to finish construction.
Further, in step S3, the specific construction steps are as follows:
s31, laying a circular cable, and installing a circular cable clamp at a marked position on the circular cable;
s32, laying an oblique cable, and connecting the fixed end of the oblique cable with a ring cable clamp;
s33, assembling the first lifting device, connecting the lifting end with the first fixing seat, and connecting the first fixing end with the looped cable clamp;
s34, assembling the second lifting device, connecting the second fixed end with the second fixed seat, and connecting the pushing end with the lifting end of the inclined cable to complete the assembly of the device.
The invention has the following beneficial effects:
the construction method has the advantages that the ring cable is lifted and fixed in the high altitude, and then the inclined cable is lifted to complete construction, so that the forming precision of the cable net structure is guaranteed, the problem that the whole cable net is disturbed due to uneven stress when the inclined cable is directly lifted is solved, and the construction method has the advantages of stable construction process and high safety.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection relationship between the lifting fixing points according to the present invention;
FIG. 3 is a schematic view of the connection relationship of the cable clamp of the present invention;
FIG. 4 is a schematic view of a lifting device according to the present invention;
FIG. 5 is a schematic structural view of a second lifting device of the present invention;
FIG. 6 is a schematic view of the present invention at the lifting fixing point;
FIG. 7 is a schematic diagram of the construction of the skew cable of the present invention;
fig. 8 is a schematic structural view of the looped cable clamp of the present invention.
Reference numerals: 1-lifting device I, 11-lifting end, 111-lifting jack, 112-rotating frame, 12-connecting piece, 13-fixing end I, 14-fixing seat I, 141-base, 142-installation limiting plate, 143-angle limiting plate, 2-lifting device II, 21-fixing seat II, 22-pushing end, 221-pushing jack, 222-bearing frame, 23-fixing end II, 231-connecting fork ear, 232-stranded wire, 3-looped cable, 4-oblique cable and 5-looped cable clamp.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in fig. 1, 2 and 3, a lifting device for a looped cable net with a bifurcated oblique cable, which is used for lifting construction of a looped cable net structure with a bifurcated oblique cable, comprises a lifting group unit, wherein the lifting group unit comprises a first lifting device 1 and a second lifting device 2, and each lifting group unit comprises two first lifting devices 1 and two second lifting devices 2; the lifting device I1 and the lifting device II 2 are both arranged on the ring beam, the lifting device I1 is connected with a ring cable 3, and the lifting device II 2 is connected with the ring cable 3 through an inclined cable 4.
The invention uses the first lifting device 1 to integrally lift the ring cable 3, and then uses the second lifting device 2 to lift the inclined cable 4 in place after the ring cable 3 is lifted in place, thereby realizing the lifting construction of the ring cable net structure with the branched inclined cable.
As shown in fig. 1, 2 and 3, each lifting group unit comprises two lifting fixing points, two looped cable clamps 5 and two lifting devices one 1 and two lifting devices two 2, wherein the lifting fixing points and the looped cable clamps 5 are arranged correspondingly and are positioned in the same radial direction of the cable net structure, and the looped cable clamps 5 are positioned at the inner sides of the lifting fixing points; the lifting fixed points are positioned on the ring beam, each lifting fixed point is connected with a first lifting device 1 and two second lifting devices 2, and the two second lifting devices 2 positioned on the same lifting fixed point respectively belong to two lifting group units; the loop cable clips 5 are arranged on the loop cables 3, each loop cable clip 5 is connected with a first lifting device 1 and two second lifting devices 2, and the two second lifting devices 2 on the same loop cable clip 5 respectively belong to two lifting group units; the lifting devices I1 are connected between correspondingly arranged lifting fixing points and the looped cable clips 5 and are distributed in a radial manner along the axle center of the cable net, and the two lifting devices II 2 in each lifting group unit are arranged between the lifting fixing points of the lifting group units and the looped cable clips 5 in a staggered manner.
The lifting devices I1 are distributed at intervals along the radial direction of the cable net axis in a spoke type, connecting points of the lifting devices I are distributed on the ring cables 3 of the cable net structure at intervals, the ring cables 3 of the cable net structure are lifted, acting force of the lifting devices I1 also acts on the ring cables 3 evenly, lifting of the ring cables 3 is achieved stably and accurately, and forming accuracy of the ring cables 3 in the lifting process is guaranteed. After the ring cable 3 is lifted to the right position through the first lifting device 1, the second lifting device 2 lifts the inclined cable 4, the inclined cable 4 is arranged between a lifting fixed point corresponding to the inclined cable and the ring cable clamp 5, and the two inclined cables 4 are arranged in a staggered mode; after the ring cable 3 is lifted in place, the inclined cable 4 is lifted independently, and when the inclined cable 4 is lifted, the stability of the state of the ring cable 3 is not influenced, and the cable net structure is not disturbed adversely.
As shown in fig. 2, 3, 4 and 6, further, the lifting device one 1 includes a lifting end 11, a connecting member 12, a fixing end one 13 and a fixing seat one 14, the fixing seat one 14 is disposed on the lifting fixing point as a mounting base, the lifting end 11 is disposed on the fixing seat one 14 as a lifting power to lift the looped cable 3, and is connected to the fixing end one 13 through the connecting member 12; the first fixing end 13 is connected with the looped cable clamp 5, and the connecting piece 12 is located between the lifting end 11 and the first fixing end 13.
As shown in fig. 4, further, the lifting end 11 includes a lifting jack 111 and a rotating frame 112, the rotating frame 112 is disposed on the first fixing base 14, the lifting jack 111 is connected to the rotating frame 112, and the connecting member 12 passes through the rotating frame 112 and is connected to the lifting jack 111.
As shown in fig. 6, the first fixing seat 14 further includes a base 141, a mounting limiting plate 142, and an angle limiting plate 143, wherein the angle limiting plate 143 is disposed in the base 141 and used for limiting the rotation angle range of the rotating frame 112, and the mounting limiting plate 142 is disposed on the base 141 and used for limiting the position of the rotating frame 112.
Preferably, a mounting groove is formed in the base 141, a mounting pin shaft is arranged on the rotating frame 112, the mounting pin shaft is located in the mounting groove and fixed through the mounting limiting plate 142, and the rotating frame 112 can rotate in the mounting groove in the base 141.
Preferably, the connecting member 12 is a plurality of steel strands, and the first fixing end 13 is a fork lug.
As shown in fig. 2, 5 and 6, further, the second lifting device 2 includes a second fixing seat 21, a second pushing end 22 and a second fixing end 23, the second fixing seat 21 is disposed on a lifting fixing point and serves as a mounting base for the second lifting device 2 and the inclined cable 4, the second fixing end 23 is connected to the second fixing seat 21, the second pushing end 22 is connected to the second fixing end 23, the inclined cable 4 is connected to the second pushing end 22, and the inclined cable 4 is connected to the second fixing seat 21 by the action of the second pushing end 22; the pushing end 22 is used as a lifting power to lift the inclined cable 4, the fixed end II 23 is used as a fixed connecting piece of the pushing end 22, and the pushing end 22 is connected to the fixed seat II 21.
As shown in fig. 5, further, the pushing end 22 includes a pushing jack 221 and a force-bearing frame 222, the second fixed end 23 includes a connecting fork lug 231 and a twisted wire 232, one end of the twisted wire 232 passes through the force-bearing frame 222 to be connected with the pushing jack 221, the other end of the twisted wire 232 is connected with the connecting fork lug 231, and the connecting fork lug 231 is connected with the second fixed base 21; the second fixed ends 23 are arranged in pairs, the two second fixed ends 23 arranged in pairs are connected to the same pushing end 22, and the pushing end 22 is connected to the second fixed seat 21.
As shown in fig. 2 and 6, a skew cable mounting hole and a lifting mounting hole are further formed in the second fixing base 21, the connecting fork lug 231 is connected in the lifting mounting hole, and the skew cable mounting hole is used for being connected with a cable clamp at a lifting end of a skew cable, so that the fixing of the skew cable 4 is realized.
As shown in fig. 7, further, the oblique cable 4 includes a cable clamp and a cable body, the cable clamp is disposed at two ends of the cable body, the cable clamp at the fixed end of the cable body is connected to the looped cable clamp 5, the lifting end of the cable body passes through the pushing end 22, the cable clamp at the lifting end is located in the lifting device two 2, and after the cable clamp at the lifting end is lifted to the right position by the lifting device two 2, the cable clamp at the lifting end is connected to the fixing seat two 21.
As shown in fig. 8, further, the looped cable clamp 5 includes a clamp body, a clamp cover plate, a first connecting portion and a second connecting portion; the cable clamp main body is provided with a ring cable pore channel, and the ring cable 3 is positioned in the ring cable pore channel and is fixed through a cable clamp cover plate; one connecting part is arranged and connected with the first fixing end 13; the two connecting parts are connected with the cable clamp on the fixed end of the inclined cable 4, and the two connecting parts are arranged in a V shape.
Preferably, the ring cable 3 is formed by a single or a plurality of steel cables which bear the ring cable force side by side.
A construction method of a lifting device for a looped cable net with a bifurcated stay, comprising the steps of:
s1, determining the lifting parameters: determining various parameters of the first lifting device 1 and the second lifting device 2 according to the stress parameters of the cable net structure, and performing simulation calculation analysis;
s2, determining cable net construction parameters: according to the calculation result of S1, carrying out simulation calculation and simulation analysis on the construction process of the cable net structure, and determining the configuration of each component in the cable net structure in the lifting construction process;
s3, assembling the device: firstly, assembling a cable net structure, and then sequentially assembling a first lifting device 1 and a second lifting device 2;
s4, lifting the lifting device: lifting the looped cable 3 to a corresponding height through the first lifting device 1 according to the calculation result of S2; because the cable net structure is an axisymmetric structure, the ring cable 3 is lifted by the symmetrically arranged lifting devices I1, so that the stability of the lifting process can be ensured;
s5, lifting operation of the second lifting device: according to the calculation result of S2, after the inclined cable 4 is lifted to the corresponding height by the second lifting device 2, the inclined cable 4 is fixedly connected with the second fixed seat 21; because the structure of the oblique cables 4 is a cross structure, the tension value of each oblique cable needs to be controlled in a balanced manner when the oblique cables 4 are lifted, and the annular cable clamp is ensured not to be damaged due to overlarge force difference of each oblique cable;
s6, detecting the skew cable parameters; according to the calculation result of S2, detecting whether the tension force value of the oblique cable 4 meets the requirement through the second lifting device 2; after stretching forming, the deviation between the actual value of the cable force of the inclined cable 4 in the cable net structure and the calculated value of the cable force of the stay cable in the simulation analysis structure in the step S2 is within +/-10%;
s7, dismantling the device; and after the tension value of the inclined cable 4 meets the requirement, the first lifting device 1 and the second lifting device 2 are removed to complete construction.
Further, in step S3, the specific construction steps are as follows:
s31, laying the looped cable 3, and installing the looped cable clamp 5 at the marked position on the looped cable 3;
s32, laying an oblique cable 4, and connecting the fixed end of the oblique cable with a ring cable clamp 5; in the construction process, the cable length of the oblique cable 4 needs to determine the accurate adjustment amount of the oblique cable according to the calculation result of S2, the processing error of the oblique cable and the processing and installation error of the peripheral ring beam of the roof;
s33, assembling the first lifting device 1, connecting the first lifting end 11 with the first fixing seat 14, and connecting the first fixing end 13 with the looped cable clamp 5;
s34, assembling the second lifting device 2, connecting the second fixed end 23 with the second fixed seat 21, and connecting the pushing end 22 with the lifting end of the inclined cable 4 to complete the device assembly.
Further, in step S1, the parameters of the first lifting device 1 and the second lifting device 2 are the maximum lifting force values thereof.
Furthermore, the lifting end of the oblique cable 4 is provided with a cable adjusting screw, and when the cable length of the oblique cable 4 is accurately adjusted in step S32, the scale is used to accurately control the cable length of the oblique cable, and the cable adjusting screw is adjusted to perform checking.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (10)
1. A lifting device for a loop cable net with a bifurcated oblique cable is used for lifting construction of a loop cable net structure with the bifurcated oblique cable and is characterized by comprising lifting group units, wherein each lifting group unit comprises a first lifting device (1) and a second lifting device (2), and each lifting group unit comprises two first lifting devices (1) and two second lifting devices (2); the lifting device I (1) and the lifting device II (2) are arranged on the ring beam, the lifting device I (1) is connected with the ring cable (3), and the lifting device II (2) is connected with the ring cable (3) through an inclined cable (4);
the lifting group unit comprises two lifting fixed points and two ring cable clamps (5), and the lifting fixed points and the ring cable clamps (5) are correspondingly arranged; the lifting fixing points are positioned on the ring beam, each lifting fixing point is connected with a first lifting device (1) and two second lifting devices (2), and the two second lifting devices (2) respectively belong to two lifting group units; the ring cable clips (5) are arranged on the ring cables (3), each ring cable clip (5) is connected with a first lifting device (1) and two second lifting devices (2), and the two second lifting devices (2) respectively belong to two lifting group units; the lifting devices I (1) are connected between correspondingly arranged lifting fixing points and the looped cable clips (5) and are distributed in a radial manner along the axle center of the cable net, and the two lifting devices II (2) are arranged between the lifting fixing points of the lifting group units and the looped cable clips (5) in a staggered manner.
2. A lifting device for a looped cable network with bifurcated strops as claimed in claim 1, wherein: lifting device (1) is including promoting end (11), connecting piece (12), stiff end (13) and fixing base (14), establish on promoting the fixed point fixing base (14), promote end (11) and establish on fixing base (14), stiff end (13) are connected with looped cable cord clip (5), connecting piece (12) are located and promote between end (11) and stiff end (13).
3. A hoist for a strop net with bifurcated strops as claimed in claim 1, wherein: hoisting device two (2) are including fixing base two (21), top thrust end (22) and stiff end two (23), establish on promoting the fixed point fixing base two (21), stiff end two (23) are connected on fixing base two (21), top thrust end (22) are connected with stiff end two (23), oblique cable (4) are connected with top thrust end (22).
4. A lifting device for a looped cable network with bifurcated strops as claimed in claim 2, wherein: the lifting end (11) comprises a lifting jack (111) and a rotating frame (112), the rotating frame (112) is arranged on the first fixing seat (14), the lifting jack (111) is connected to the rotating frame (112), and the connecting piece (12) penetrates through the rotating frame (112) to be connected with the lifting jack (111).
5. A lifting device for a looped cable network with bifurcated strops as claimed in claim 3, wherein: the pushing end (22) comprises a pushing jack (221) and a bearing frame (222), the fixed end II (23) comprises a connecting fork lug (231) and a stranded wire (232), one end of the stranded wire (232) penetrates through the bearing frame (222) to be connected with the pushing jack (221), the other end of the stranded wire (232) is connected with the connecting fork lug (231), and the connecting fork lug (231) is connected with the fixed seat II (21).
6. A lifting device for a looped cable network with bifurcated strops as claimed in claim 4, wherein: the first fixing seat (14) comprises a base (141), an installation limiting plate (142) and an angle limiting plate (143), the angle limiting plate (143) is arranged in the base (141) and used for limiting the rotating angle range of the rotating frame (112), and the installation limiting plate (142) is arranged on the base (141) and used for limiting the position of the rotating frame (112).
7. A lifting device for a looped cable network with bifurcated strops as claimed in claim 5, wherein: the inclined cable (4) comprises cable clamps and a cable body, the cable clamps are arranged at two ends of the cable body, the cable clamp on the fixed end of the cable body is connected to the ring cable clamp (5), the lifting end of the cable body penetrates through the pushing end (22), and the cable clamp on the lifting end is located in the second lifting device (2).
8. A lifting device for a looped cable network with bifurcated strops as claimed in claim 5, wherein: an inclined cable mounting hole and a lifting mounting hole are formed in the second fixing seat (21), and the connecting fork lug (231) is connected into the lifting mounting hole; the second fixed ends (23) are arranged in pairs and connected to the same pushing end (22).
9. A method of constructing a lifting device for a looped cable network with bifurcated oblique cables according to any one of claims 1 to 8, including the steps of:
s1, determining the lifting parameters: determining various parameters of the first lifting device (1) and the second lifting device (2) according to the stress parameters of the cable net structure, and performing simulation calculation analysis;
s2, determining cable net construction parameters: according to the calculation result of S1, carrying out simulation calculation and simulation analysis on the construction process of the cable net structure, and determining the configuration of the cable net structure in the construction process;
s3, assembling the device: firstly, assembling a cable net structure, and then sequentially assembling a first lifting device (1) and a second lifting device (2);
s4, lifting the lifting device: lifting the looped cable (3) to a corresponding height through the first lifting device (1) according to the calculation result of S2;
s5, lifting operation of the second lifting device: according to the calculation result of S2, the oblique cable (4) is lifted to a corresponding height through the second lifting device (2), and the oblique cable (4) is fixedly connected with the second fixing seat (21);
s6, detecting the skew cable parameters; according to the calculation result of S2, detecting whether the tension force value of the oblique cable (4) meets the requirement through a second lifting device (2);
s7, dismantling the device; and after the tension value of the inclined cable (4) meets the requirement, the first lifting device (1) and the second lifting device (2) are removed to finish construction.
10. A method of constructing a hoist for a looped cable net with bifurcated stay as claimed in claim 9, wherein: in step S3, the concrete construction steps are as follows:
s31, laying the circular cable (3), and installing a circular cable clamp (5) at a marked position on the circular cable (3);
s32, laying a stay cable (4), and connecting the fixed end of the stay cable with a ring cable clamp (5);
s33, assembling the first lifting device (1), connecting the lifting end (11) with the first fixing seat (14), and connecting the first fixing end (13) with the cable clip (5);
s34, assembling the second lifting device (2), connecting the second fixed end (23) with the second fixed seat (21), and connecting the pushing end (22) with the lifting end of the oblique cable (4) to complete the device assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210266840.7A CN114352040B (en) | 2022-03-18 | 2022-03-18 | Lifting device for ring cable net with branched inclined cables and construction method |
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| CN202210266840.7A CN114352040B (en) | 2022-03-18 | 2022-03-18 | Lifting device for ring cable net with branched inclined cables and construction method |
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| CN114352040B true CN114352040B (en) | 2022-05-27 |
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| CN114541775B (en) * | 2022-04-28 | 2022-07-19 | 北京市建筑工程研究院有限责任公司 | Multipoint control boundary cable lifting installation structure and method |
| CN117684779A (en) * | 2024-02-01 | 2024-03-12 | 北京工业大学 | Composite structure system with built-in reinforcement cable net of existing grid structure and installation and construction method |
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| CH508791A (en) * | 1968-06-28 | 1971-06-15 | Bacci Luigi | Procedure for raising a monolithic cell of a building structure at height, in particular for roofing and for the installation of the support pillars with the reciprocal connection, as well as a device for carrying out this procedure |
| CN103883125B (en) * | 2014-04-08 | 2015-11-18 | 北京市建筑工程研究院有限责任公司 | Super-span shape of a saddle flexible cable net Tension Forming construction method |
| CN110145064A (en) * | 2019-05-17 | 2019-08-20 | 东南大学 | One kind is rib-ring-shaped to open up scissors central shoring cable dome structure |
| CN112127480B (en) * | 2020-09-21 | 2021-10-26 | 北京城建六建设集团有限公司 | Lifting method of spoke type double-layer cable truss structure |
| CN112227805B (en) * | 2020-09-27 | 2022-04-19 | 中国航空规划设计研究总院有限公司 | Smoke tower integrated structure system of diagonal cable net and construction method thereof |
| CN112962850B (en) * | 2021-02-02 | 2021-12-03 | 北京市建筑工程研究院有限责任公司 | Construction method for integrally lifting upper layer and lower layer of spoke type double-layer cable net structure |
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