CN117569446A - Endless cable suspended dome structure and tensioning construction method - Google Patents

Endless cable suspended dome structure and tensioning construction method Download PDF

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Publication number
CN117569446A
CN117569446A CN202311658872.2A CN202311658872A CN117569446A CN 117569446 A CN117569446 A CN 117569446A CN 202311658872 A CN202311658872 A CN 202311658872A CN 117569446 A CN117569446 A CN 117569446A
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CN
China
Prior art keywords
cable
plate
fixed
rod
lug plate
Prior art date
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Pending
Application number
CN202311658872.2A
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Chinese (zh)
Inventor
蒋永扬
郭立湘
陈志伟
陶腾
李佳锋
夏春芳
高生
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Zhejiang Zhongnan Lvjian Technology Group Co ltd
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Zhejiang Zhongnan Lvjian Technology Group Co ltd
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Priority to CN202311658872.2A priority Critical patent/CN117569446A/en
Publication of CN117569446A publication Critical patent/CN117569446A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
    • E04B1/585—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form with separate connection devices
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/08—Vaulted roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/14—Suspended roofs
    • 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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E04B2001/1918—Connecting nodes specially adapted therefor with connecting nodes having flat radial connecting surfaces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1981—Three-dimensional framework structures characterised by the grid type of the outer planes of the framework
    • E04B2001/1987—Three-dimensional framework structures characterised by the grid type of the outer planes of the framework triangular grid
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/199—Details of roofs, floors or walls supported by the framework
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1996—Tensile-integrity structures, i.e. structures comprising compression struts connected through flexible tension members, e.g. cables
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B2001/5875—Connections for building structures in general of bar-shaped building elements using exterior clamping plates or shells

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention discloses a cable-free suspended dome structure and a tensioning construction method, wherein the cable-free suspended dome structure comprises a ring truss, a single-layer net shell, hub nodes and a inhaul cable, wherein the inhaul cable is connected between the single-layer net shell and the ring truss; a fixing node is arranged between the single-layer net shell and the ring truss, a first cable lug plate is fixed at the fixing node, a steel casting is arranged at the middle position of the single-layer net shell, a second cable lug plate is arranged at the bottom of the steel casting, and a inhaul cable is fixed between the first cable lug plate and the second cable lug plate. The bottom fixedly connected with bearing structure of hub node, bearing structure's bottom is fixed with the connection otic placode one, and connection otic placode one acts on the cable for the cable forms the break point. The loss of the tension prestress of the inhaul cable is avoided in the node and at the end part of the node, the effective transmission of the tension prestress is realized, and the rigidity and the bearing capacity of the whole structure reach the design values.

Description

Endless cable suspended dome structure and tensioning construction method
Technical Field
The invention belongs to the technical field of building steel structures, and particularly relates to a loop-free cable suspended dome structure and a tensioning construction method.
Background
With the continuous development of the steel structure of the buildings in China, the requirements of various space steel structure buildings on span, space and the like are also continuously improved. The suspended dome structure is widely applied to large building roof structures such as gymnasiums, exhibition centers and quick-skating stadiums due to the advantages of attractive appearance, material saving, light weight, high rigidity, simplified construction process and the like.
Aiming at the problems that the hoop prestress cable supporting system of the suspended dome structure is unfavorable for structural continuity collapse and the hoop tension force is large, the steel cable consumption, the tensioning construction and the node design difficulty are increased, the suspended dome combined structure of the hoop truss central area string of the novel system of the suspended dome structure without the hoop cable is introduced, the suspended dome combined structure comprises a single-layer net shell, a hub node and a inhaul cable, the single-layer net shell is fixedly connected with the hub node, the single-layer net shell is connected with a ring truss, the inhaul cable is connected between the middle position of the single-layer net shell and the ring truss, and the inhaul cable is used as a radial inhaul cable.
How to reasonably transfer the tension prestress of the inhaul cable between the middle position of the single-layer reticulated shell and the ring truss to enable the rigidity and the bearing capacity of the structure to reach the design values is a technical problem which needs to be solved by the person skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provide the endless cable suspended dome structure and the tensioning construction method, so that a smooth folding point is formed on an ear plate I of a supporting structure by a guy cable, the loss of guy cable tensioning prestress in a node and at the end of the node is avoided, the effective transmission of the tensioning prestress is realized, and the rigidity and the bearing capacity of the whole structure reach design values.
In order to solve the technical problems, the invention adopts the following technical scheme:
the endless cable suspended dome structure comprises a ring truss, a single-layer net shell, hub nodes and a cable, wherein the cable is connected between the single-layer net shell and the ring truss; the cable is characterized in that a fixing node is arranged between the single-layer net shell and the ring truss, a first cable lug plate is fixed at the fixing node, a steel casting is arranged at the middle position of the single-layer net shell, a second cable lug plate is arranged at the bottom of the steel casting, and a cable is fixed between the first cable lug plate and the second cable lug plate. The bottom fixedly connected with bearing structure of hub node, bearing structure's bottom is fixed with the connection otic placode one, and connection otic placode one acts on the cable for the cable forms the break point. The loss of the tension prestress of the inhaul cable is avoided in the node and at the end part of the node, the effective transmission of the tension prestress is realized, and the rigidity and the bearing capacity of the whole structure reach the design values.
Further, the ring truss comprises a first rod member, a second rod member and a third rod member, wherein the first rod member is fixed end to form a circular ring shape, the second rod member is fixed end to form a circular ring shape, the first rod member and the second rod member are distributed up and down, the single-layer net shell comprises a fourth rod member, the fourth rod member is fixed on a hub node, the first rod member is welded with a connecting plate, the fourth rod member at the outer side is welded on the connecting plate, and the third rod member is welded between the connecting plate and the second rod member.
Further, the fixed node comprises a first reinforcing rod and a second reinforcing rod, the first reinforcing rod and the first rod are fixedly welded, the diameter of the first reinforcing rod is larger than that of the first rod, the second reinforcing rod is welded between the first reinforcing rod and the second rod, the third rod is welded between the first reinforcing rod and the second rod, the diameter of the second reinforcing rod is larger than that of the third rod, and the first cable lug plate is welded between the first reinforcing rod, the second reinforcing rod and the fourth rod.
Further, the hub node adopts the cylinder shape, and the inside of hub node is equipped with the cavity, has the stiffening rib in the cavity welding, and stiffening rib sets up quantity to 5, and wherein a stiffening rib is as the intermediate lamella, and its diameter along the hub node sets up, and other stiffening ribs are as the curb plate, and its welding can reduce the steel consumption of hub node in the both sides of intermediate lamella, can guarantee the intensity of hub node simultaneously for the hub node satisfies the requirement that the individual layer net shell is connected.
Further, bearing structure includes backup pad, vaulting pole and lower backup pad, and the vaulting pole is fixed between last backup pad and lower backup pad, and hub node's bottom is fixed with connection otic placode two, connection otic placode two and last backup pad fixed connection, connection otic placode one and lower backup pad fixed connection have realized keeping the settlement distance between hub node and the cable for connection otic placode one acts on the cable, makes the cable form smooth break point.
Further, go up backup pad and include plate body one and plate body two, adopt two plate body one to weld on plate body two, form notch one between two plate body one, connect the otic placode two and fix in notch one, the inboard welding of plate body one has the flitch one, flitch one and connect otic placode two welded fastening for go up backup pad and press from both sides tight fixed to connect otic placode two, increase the joint strength of last backup pad and connecting otic placode two, guarantee the transmission of force between last backup pad and the connecting otic placode two. The lower support plate comprises a plate body III and a plate body IV, two plate bodies III are welded on the plate body IV, a notch II is formed between the two plate bodies III, the first connecting lug plate is fixed in the notch II, the second attaching plate is welded on the inner side of the plate body III, the second attaching plate is welded and fixed with the first connecting lug plate, the stay bar is welded between the second plate body and the plate body IV, the lower support plate clamps and fixes the first connecting lug plate, the connection strength of the lower support plate and the first connecting lug plate is increased, and the force transmission between the lower support plate and the first connecting lug plate is ensured.
Further, the limiting plates are welded on the second plate body and the fourth plate body, the limiting grooves are formed in the supporting rods, the limiting plates are clamped into the limiting grooves, meanwhile, the limiting plates and the supporting rods are welded and fixed, the contact area of the supporting rods and the second plate body can be increased, the contact area of the supporting rods and the fourth plate body is increased, the connection strength between the supporting rods and the second plate body is improved, and the connection strength between the supporting rods and the fourth plate body is improved.
The tensioning construction method of the endless cable suspended dome structure is characterized by comprising the following steps of:
step A, assembling and welding a single-layer net shell and a ring truss, mounting a first cable lug plate on a fixed node between the single-layer net shell and the ring truss, arranging a steel casting in the middle, mounting a second cable lug plate on the bottom of the steel casting, arranging a hub node on the single-layer net shell, and mounting a supporting structure on the bottom of the hub node, wherein a first connecting lug plate is arranged on the bottom of the supporting structure;
step B, tensioning construction of the inhaul cable in batches: the guy wires are divided into four batches: the first batch is SJ1 and SJ5; the second batch is SJ3 and SJ7; the third batch is SJ2 and SJ6; the fourth batch is SJ4 and SJ8; tensioning the first batch of cables, tensioning the second batch of cables, tensioning the third batch of cables, and tensioning the fourth batch of cables;
step C, stretching modes of each inhaul cable are the same, and the method specifically comprises the following steps:
(1) The inhaul cable is unfolded;
(2) A fixed pulley is arranged on the outer side of the single-layer net shell, a traction rope of a winch is wound on the fixed pulley, the traction rope is fixed on the outer side of a guy cable, and then the guy cable is pulled by the traction rope of the winch, and a cable head I at the outer side of the guy cable is fixedly connected with a cable lug plate I by using a high-altitude vehicle;
(3) Removing a fixed pulley on the outer side of the single-layer net shell, installing the fixed pulley at the middle position of the single-layer net shell, fixing a traction rope at the middle position of a traction rope, and supporting the middle position of the traction rope on a first connecting lug plate by using a high-altitude vehicle through traction of the traction rope of a winch to the traction rope;
(4) Dismantling a fixed pulley at the middle position of the single-layer net shell, installing the fixed pulley at the inner side of the single-layer net shell, fixing a traction rope at the inner side of a traction rope, drawing the traction rope by the traction rope of a winch, fixedly connecting a rope head II at the inner side of the traction rope with a rope lug plate through a tensioning device by utilizing a high-altitude vehicle, and dismantling the fixed pulley to complete single-rope tensioning construction.
In the step C, the cable is opened as follows:
1) Place discoid cable on the exhibition cable dish, this exhibition cable dish includes base and rack, and the base includes four steel sheets of alternately distributed, and the welding has the connection pad between the steel sheet, and the outside of four steel sheets is equipped with the opening, and the welding has the coil in the opening, and the rack includes the stand and places the member, places member horizontal welding on the stand, places the welding between member and the stand and has the stiffener of slope, and the cable is placed specifically: setting a base on a concrete foundation, lifting a disc-shaped inhaul cable by adopting a crane, placing the disc-shaped inhaul cable on a placing rod piece, enabling a stand column to pass through a central hole formed by the disc-shaped inhaul cable, supporting the inhaul cable on a reinforcing rod at the same time, lifting a placing frame with the inhaul cable by adopting the crane, and inserting the stand column of the placing frame into a connecting hole of a connecting disc;
2) Setting a display cable frame on a concrete basis, and setting a proper number of display cable frames according to the length of a inhaul cable, wherein the display cable frame comprises a fixed seat and a steel pipe, and the steel pipe is horizontally fixed on the fixed seat;
3) Installing a guide device on a concrete foundation, wherein the guide device comprises an installation seat and a rotating disc, the installation seat is fixed on the concrete foundation through an installation bolt, the rotating disc rotates on the installation seat through a rotating shaft, a locking nut is connected with the rotating shaft in a threaded mode, the rotating disc is provided with an installation hole, a guide sleeve penetrates through the installation hole and is provided with a guide hole, the guide sleeve is fixed on the rotating disc through a fixing plate, and the rotating disc is rotated on the installation seat by a set angle according to the positions of the guide device and a first cable lug plate, and then the locking nut on the rotating shaft is screwed;
4) The cable outside is unfolded from the cable unfolding disc, at the moment, the stand column rotates in the connecting hole of the connecting disc, the cable is supported on the supporting rod of the cable unfolding frame, the cable head at the outer side of the cable is penetrated through the guide hole of the guide sleeve, then the adjusting rod is clamped in the notch of the guide sleeve, the positioning block fixed at the end of the adjusting rod is arranged in the guide hole, the positioning block is provided with a rubber pad, a single adjusting rod is provided with two fixing nuts, then the positioning block is adjusted, the distance between the rubber pad and the cable is controlled to be 1-2mm, one fixing nut is locked at the inner side of the guide sleeve, the other fixing nut is locked at the outer side of the guide sleeve, the cable head at the outer side of the cable is limited on the positioning block, and the cable head two at the inner side of the cable is fixed on the placing rod through an iron wire.
When the first cable head and the first cable lug plate at the outer side of the cable are fixedly connected through bolts, the second cable head of the cable is supported on the positioning block, after the first cable head and the first cable lug plate are fixed, the fixing nut of the adjusting rod is unscrewed, the adjusting rod is moved out, and then the second cable head of the cable is taken out from the guide hole of the guide sleeve, so that the whole cable is separated from the guide device.
Further, the bottom of the first connection lug plate is provided with a clamping groove, and the middle position of the inhaul cable is clamped into the clamping groove, so that the middle position of the inhaul cable is supported on the first connection lug plate.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention adopts a non-endless cable suspended dome, and a single-layer net shell is connected with a ring truss. One end of the inhaul cable is connected with the ring truss through a first inhaul cable lug plate, and the other end of the inhaul cable is connected with the steel casting below the central area of the single-layer net shell through a second inhaul cable lug plate.
In the tensioning process of the inhaul cable, the first lug plate at the bottom of the supporting structure acts on the inhaul cable, the front end and the rear end of the inhaul cable form different included angles with the horizontal plane, so that the inhaul cable forms a smooth folding point on the first lug plate of the supporting structure, the loss of tensioning prestress of the inhaul cable caused by the inside of a node and the end of the node is avoided, the effective transmission of the tensioning prestress is realized, the rigidity and the bearing capacity of the integral structure reach the design values, the tensioning construction of the inhaul cable is facilitated, and the attractive and loop-free cable string dome structure of the integral model is obtained.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of a endless cable suspended dome structure in accordance with the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a schematic view of the structure of the fixed connection of the steel casting and the second cable lug plate in the invention;
FIG. 5 is a schematic view of the structure of the present invention in which the hub nodes are fixedly connected to the support structure;
FIG. 6 is a schematic view of a brace bar according to the present invention;
FIG. 7 is a schematic view of the structure of the upper support plate of the present invention;
FIG. 8 is a schematic view of the structure of the lower support plate of the present invention;
FIG. 9 is a schematic view of the structure of the interior of the hub node of the present invention;
FIG. 10 is a schematic view of the structure of a middle ear plate of the present invention acting on a cable;
FIG. 11 is a schematic view of a support structure according to the present invention;
FIG. 12 is a layout of a batch tension cable construction in accordance with the present invention;
FIG. 13 is a schematic view showing the structure of the cable according to the present invention;
FIG. 14 is a schematic view of the structure of the cable tray of the present invention;
FIG. 15 is a schematic view of a cable mount according to the present invention;
FIG. 16 is a schematic view of a rack according to the present invention;
FIG. 17 is a schematic view of a base structure according to the present invention;
FIG. 18 is a schematic view of a guide device according to the present invention;
FIG. 19 is a schematic view showing the structure of the present invention when the rotating disc is rotated on the mounting base by a predetermined angle;
FIG. 20 is a schematic view of the structure of the fixed connection of the guide sleeve and the rotating disc in the present invention;
FIG. 21 is a schematic view of a mounting base according to the present invention;
FIG. 22 is a schematic view of the positioning block according to the present invention;
FIG. 23 is a schematic view of the structure of the present invention in the use of a high-altitude vehicle to fixedly connect a cable head one and a cable lug plate one at the outer side of a cable;
FIG. 24 is a schematic view of the present invention in a configuration in which the intermediate position of the cable is supported on the first link lug by the overhead traveling crane;
FIG. 25 is a schematic view of the structure of the present invention when the cable head II and the cable lug plate II at the inner side of the cable are fixedly connected by using the overhead traveling crane;
fig. 26 is a field photograph of a cable deployment of the present invention.
In the figure, 1-single layer net shell; 2-hub nodes; 3-ring truss; 4-inhaul cables; 5-a support structure; 6-connecting the first lug plate; 7-a cavity; 81-an intermediate plate; 82-side plates; 9-stay bars; 10-an upper support plate; 11-a lower support plate; 12-a limit groove; 13-a second plate body; 14-first plate body; 15-notch one; 16-flitch one; 17-limiting plates; 18-plate body IV; 19-a third plate body; 20-notch II; 21-second flitch; 22-connecting the second ear plate; 23-bar one; 24-a second rod piece; 25-reinforcing rod II; 26-reinforcing rod one; 27-a rod member III; 28-first grommet plate; 29-a rod piece IV; 30-connecting plates; 31-casting steel; 32-a second cable lug plate; 33-a cable tray; 34-expanding a cable rack; 35-guiding means; 36-concrete foundation; 37-steel plate; 38-connecting discs; 39-coil; 40-placing a rod piece; 41-upright posts; 42-reinforcing bars; 43-fixing seat; 44-steel pipe; 45-connecting holes; 46-a winch; 47-hauling rope; 48-cable head I; 49-cable head II; 50-high altitude vehicle; 51-fixed pulleys; 52-mounting seats; 53-rotating a disc; 54-a fixed plate; 55-mounting holes; 56-guiding sleeve; 57-guiding holes; 58-positioning blocks; 59-adjusting lever; 60-fixing the nut; 61-rotating shaft; 62-locking nut; 63-notch; 64-rubber pad.
Detailed Description
As shown in fig. 1 to 26, the endless cable suspended dome structure of the present invention comprises a ring truss 3, a single-layer net shell 1, a hub node 2 and a cable 4, wherein the cable 4 is connected between the single-layer net shell 1 and the ring truss 3.
A fixed node is arranged between the single-layer net shell 1 and the ring truss 3, a first cable lug plate 28 is fixed at the fixed node, a steel casting 31 is arranged at the middle position of the single-layer net shell 1, a second cable lug plate 32 is arranged at the bottom of the steel casting 31, and a stay cable 4 is fixed between the first cable lug plate 28 and the second cable lug plate 32. The bottom fixedly connected with bearing structure 5 of hub node 2, the bottom of bearing structure 5 is fixed with and connects otic placode one 6, connects otic placode one 6 and acts on cable 4 for cable 4 forms the break point. The loss of the tension prestress of the inhaul cable 4 caused by the inside of the node and the end part of the node is avoided, the effective transmission of the tension prestress is realized, and the rigidity and the bearing capacity of the whole structure reach the design values.
The invention specifically designs the ring truss 3: the ring truss 3 comprises a first rod member 23, a second rod member 24 and a third rod member 27, wherein the first rod member 23 is fixed end to form a circular ring shape, the second rod member 24 is fixed end to form a circular ring shape, and the first rod member 23 and the second rod member 24 are distributed up and down. The single-layer net shell 1 comprises a rod piece IV 29, the rod piece IV 29 is fixed on the hub node 2, a connecting plate 30 is welded on the rod piece IV 23, the rod piece IV 29 positioned on the outer side is welded on the connecting plate 30, a rod piece III 27 is welded between the connecting plate 30 and the rod piece II 24, and the connecting plate 30 has the following functions: the third rod member 27, the first rod member 23 and the fourth rod member 29 can be acted together, so that the ring truss 3 can be provided with a plurality of mutually-related third rod members 27, and the strength of the ring truss 3 is improved.
The invention specifically designs the fixed node: the fixed node comprises a first reinforcing rod 26 and a second reinforcing rod 25, the first reinforcing rod 26 and the first rod member 23 are welded and fixed, and the diameter of the first reinforcing rod 26 is larger than that of the first rod member 23. The second reinforcing rod 25 is welded between the first reinforcing rod 26 and the second rod 24, the third rod 27 is welded between the first reinforcing rod 26 and the second rod 24, the second reinforcing rod 25 has a larger diameter than the third rod 27, and the first cable lug 28 is welded between the first reinforcing rod 26, the second reinforcing rod 25 and the fourth rod 29. The stress capability of the fixed node can be increased, and the tensioning construction of the inhaul cable 4 is satisfied.
The hub node 2 adopts the cylinder shape, and the inside of hub node 2 is equipped with cavity 7, has the stiffening rib in the welding in the cavity 7, and the stiffening rib sets up quantity and is 5, and wherein a stiffening rib is as intermediate plate 81, and its diameter along hub node 2 sets up, and other stiffening ribs are as curb plate 82, and its welding can reduce the steel consumption of hub node 2 in the both sides of intermediate plate 81 for the intensity of hub node 2 can be guaranteed simultaneously for hub node 2 satisfies the requirement that single-layer net shell 1 connects.
The supporting structure 5 comprises an upper supporting plate 10, a supporting rod 9 and a lower supporting plate 11, wherein the supporting rod 9 is fixed between the upper supporting plate 10 and the lower supporting plate 11, a second connecting lug plate 22 is fixed at the bottom of the hub joint 2, the second connecting lug plate 22 is fixedly connected with the upper supporting plate 10, a first connecting lug plate 6 is fixedly connected with the lower supporting plate 11, a set distance between the hub joint 2 and the inhaul cable 4 is kept, the first connecting lug plate 6 acts on the inhaul cable 4, and a smooth folding point is formed on the inhaul cable 4.
The upper supporting plate 10 comprises a first plate body 14 and a second plate body 13, the first plate body 14 is welded on the second plate body 13, a notch I15 is formed between the first plate bodies 14, the second connecting lug plate 22 is fixed in the notch I15, a first sticking plate 16 is welded on the inner side of the first plate body 14, and the first sticking plate 16 and the second connecting lug plate 22 are welded and fixed, so that the upper supporting plate 10 clamps and fixes the second connecting lug plate 22, the connection strength of the upper supporting plate 10 and the second connecting lug plate 22 is improved, and the force transmission between the upper supporting plate 10 and the second connecting lug plate 22 is ensured. The lower supporting plate 11 comprises a plate body III 19 and a plate body IV 18, two plate bodies III 19 are welded on the plate body IV 18, a notch II 20 is formed between the two plate bodies III 19, the first connecting lug plate 6 is fixed in the notch II 20, a second sticking plate 21 is welded on the inner side of the plate body III 19, the second sticking plate 21 is welded and fixed with the first connecting lug plate 6, and the supporting rod 9 is welded between the plate body II 13 and the plate body IV 18, so that the lower supporting plate 11 clamps and fixes the first connecting lug plate, the connecting strength of the lower supporting plate 11 and the first connecting lug plate 6 is increased, and the force transmission between the lower supporting plate 11 and the first connecting lug plate 6 is ensured.
Limiting plates 17 are welded on the second plate body 13 and the fourth plate body 18, limiting grooves 12 are formed in the supporting rods 9, the limiting plates 17 are clamped into the limiting grooves 12, meanwhile, the limiting plates 17 and the supporting rods 9 are welded and fixed, the contact area between the supporting rods 9 and the second plate body 13 can be increased, the contact area between the supporting rods 9 and the fourth plate body 18 is increased, the connection strength between the supporting rods 9 and the second plate body 13 is improved, and meanwhile, the connection strength between the supporting rods 9 and the fourth plate body 18 is improved.
The tensioning construction method of the endless cable suspended dome structure comprises the following steps:
step A, assembling and welding a single-layer net shell 1 and a ring truss 3, installing a first cable lug plate 28 on a fixed node between the single-layer net shell 1 and the ring truss 3, arranging a steel casting 31 in the middle, installing a second cable lug plate 32 at the bottom of the steel casting 31, arranging a hub node 2 on the single-layer net shell 1, installing a supporting structure 5 at the bottom of the hub node 2, and arranging a first connecting lug plate 6 at the bottom of the supporting structure 5.
Step B, tensioning construction of the inhaul cable 4 in batches: the cable 4 is divided into four batches: the first batch is SJ1 and SJ5; the second batch is SJ3 and SJ7; the third batch is SJ2 and SJ6; the fourth batch is SJ4 and SJ8; the first batch of the guy ropes 4 is stretched first, the second batch of guy ropes 4 is stretched, the third batch of guy ropes 4 is stretched, and the fourth batch of guy ropes 4 is stretched finally.
Step C, the stretching modes of each inhaul cable 4 are the same, and the method specifically comprises the following steps:
(1) The cable 4 is deployed.
(2) The fixed pulley 51 is arranged on the outer side of the single-layer net shell 1, the traction rope 47 of the winch 46 is wound on the fixed pulley 51, the traction rope 47 is fixed on the outer side of the guy rope 4, the guy rope 4 is pulled by the traction rope 47 of the winch 46, and the guy rope head 48 and the guy rope lug plate 28 on the outer side of the guy rope 4 are fixedly connected by the overhead travelling crane 50.
(3) The fixed pulley 51 on the outer side of the single-layer net shell 1 is removed, the fixed pulley 51 is installed at the middle position of the single-layer net shell 1, the traction rope 47 is fixed at the middle position of the traction rope 4, the traction rope 47 of the winch 46 is used for traction of the traction rope 4, and the middle position of the traction rope 4 is supported on the first connecting lug plate 6 by the overhead travelling crane 50. The bottom of the first connecting lug plate 6 is provided with a clamping groove, and the middle position of the inhaul cable 4 is clamped into the clamping groove, so that the middle position of the inhaul cable 4 is supported on the first connecting lug plate 6.
(4) The fixed pulley 51 at the middle position of the single-layer net shell 1 is removed, the fixed pulley 51 is installed at the inner side of the single-layer net shell 1, the traction rope 47 is fixed at the inner side of the traction rope 4, the traction rope 47 of the winch 46 is used for traction of the traction rope 4, the overhead crane 50 is used for fixedly connecting the rope head II 49 and the rope lug plate II 32 at the inner side of the traction rope 4 through a tensioning device, and the fixed pulley 51 is removed, so that tensioning construction of the single traction rope 4 is completed.
Considering that if the inhaul cable 4 is directly and manually unfolded, the inhaul cable 4 is rubbed with the ground to damage the steel cable, aiming at the technical problem, the invention specifically designs the unfolding of the inhaul cable 4:
in the step C, the cable 4 is unfolded as follows:
1) The disc-shaped guy rope 4 is placed on the guy rope spreading disc 33, the guy rope spreading disc 33 comprises a base and a placement frame, the base comprises four steel plates 37 which are distributed in a crossing mode, a connecting disc 38 is welded between the steel plates 37, openings are formed in the outer sides of the four steel plates 37, and a coil 39 is welded in the openings. The rack comprises a stand column 41 and a placing rod piece 40, wherein the placing rod piece 40 is horizontally welded on the stand column 41, and an inclined reinforcing rod 42 is welded between the placing rod piece 40 and the stand column 41 in consideration of the fact that the weight of a single guy rope 4 is about 3t, so that the strength of the rack is improved.
The stay rope 4 is placed specifically as follows: the base is set on the concrete foundation 36, and the disc-shaped stay 4 is lifted by a crane and placed on the placement rod 40, and the column 41 passes through a center hole formed by the disc-shaped stay 4 while the stay 4 is supported on the reinforcing rod 42. Then, the rack with the guy wires 4 is lifted by a crane, and then the upright posts 41 of the rack are inserted into the connecting holes 45 of the connecting disc 38, so that the guy wires 4 can be unfolded in a rotating manner.
2) The display cable frames 34 are arranged on the concrete foundation 36, and a proper number of display cable frames 34 are arranged according to the length of the inhaul cable 4, and one display cable frame 34 is arranged at intervals of 5-6 m. The expanding cable frame 34 comprises a fixing seat 43 and a steel pipe 44, the steel pipe 44 is horizontally fixed on the fixing seat 43, the steel pipe 44 can support the expanded cable 4, and the structure damage caused by the contact between the expanded cable 4 and the ground is avoided.
3) The guide device 35 is installed on the concrete foundation 36, the guide device 35 comprises an installation seat 52 and a rotating disc 53, the installation seat 52 is fixed on the concrete foundation 36 through an installation bolt, the rotating disc 53 rotates on the installation seat 52 through a rotating shaft 61, the rotating shaft 61 is in threaded connection with a locking nut 62, the rotating disc 53 is provided with an installation hole 55, a guide sleeve 56 penetrates through the installation hole 55, the guide sleeve 56 is provided with a guide hole 57, the guide sleeve 56 is fixed on the rotating disc 53 through a fixing plate 54, the rotating disc 53 rotates on the installation seat 52 by a set angle according to the positions of the guide device 35 and the first cable lug plate 28, and then the locking nut 62 on the rotating shaft 61 is screwed. The guy rope 4 is guided by the guide device 35, so that the guy rope head one 48 at the outer side of the guy rope 4 can move towards the guy rope lug one 28.
4) The outer side of the cable 4 is unfolded from the cable unfolding disc 33, at the moment, the upright 41 rotates in the connecting hole 45 of the connecting disc 38, the cable 4 is supported on the steel tube 44 of the cable unfolding bracket 34, and the cable head 48 at the outer side of the cable 4 passes through the guide hole 57 of the guide sleeve 56. Then, the adjusting rod 59 is clamped in the notch 63 of the guide sleeve 56, the positioning block 58 fixed at the end part of the adjusting rod 59 is arranged in the guide hole 57, the positioning block 58 is provided with a rubber pad 64, a single adjusting rod 59 is provided with two fixing nuts 60, then the distance between the rubber pad 64 and the cable body of the guy cable 4 is controlled to be 1-2mm, one fixing nut 60 is locked at the inner side of the guide sleeve 56, the other fixing nut 60 is locked at the outer side of the guide sleeve 56, the cable head I48 at the outer side of the guy cable 4 is limited on the positioning block 58, the cable head II 49 at the inner side of the guy cable 4 is fixedly arranged on the rod 40 through an iron wire, and the cable head II 49 is limited. When the whole inhaul cable 4 is unfolded, the first cable head 48 at the outer side of the inhaul cable 4 is limited on the guide device 35, the second cable head 49 at the inner side of the inhaul cable 4 is limited on the unfolding cable disc 33, the whole inhaul cable 4 can be fully unfolded, the phenomenon that the rope body of the inhaul cable 4 is knotted is avoided, and the inhaul cable 4 is not easy to break off, so that the inhaul cable 4 is protected.
When the cable head one 48 and the cable lug plate one 28 at the outer side of the cable 4 are fixedly connected through bolts, the cable head two 49 of the cable 4 is supported on the positioning block 58, and the whole cable 4 is limited on the guide device 35 at the moment, so that the cable 4 is prevented from being influenced by wind, and the inner side of the cable 4 collides with a steel structure to cause structural damage. After the cable head one 48 and the cable lug plate one 28 are fixed, the fixing nut 60 of the adjusting rod 59 is unscrewed, the adjusting rod 59 is moved out, and then the cable head two 49 of the cable 4 is taken out of the guide hole 57 of the guide sleeve 56, so that the whole cable 4 is separated from the guide device 35.
The problem of local scratch of the cable surface of the cable 4 is difficult to avoid when the cable 4 is constructed on the site, and according to the cable, after the cable 4 is fully unfolded, the surface of the cable is cleaned aiming at the part of the cable surface with local scratch, and then the epoxy zinc-rich primer with the thickness not less than 100 mu m is sprayed.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications and the like made on the basis of the present invention to solve the substantially same technical problems and achieve the substantially same technical effects are included in the scope of the present invention.

Claims (10)

1. The endless cable suspended dome structure comprises a ring truss, a single-layer net shell, hub nodes and a cable, wherein the cable is connected between the single-layer net shell and the ring truss; the cable is characterized in that a fixing node is arranged between the single-layer net shell and the ring truss, a first cable lug plate is fixed at the fixing node, a steel casting is arranged at the middle position of the single-layer net shell, a second cable lug plate is arranged at the bottom of the steel casting, and the cable is fixed between the first cable lug plate and the second cable lug plate;
the bottom fixedly connected with bearing structure of hub node, bearing structure's bottom is fixed with the connection otic placode one, the connection otic placode one is used in on the cable for the cable forms the break point.
2. The cable-less suspended dome structure of claim 1, wherein: the ring truss comprises a first rod member, a second rod member and a third rod member, wherein the first rod member is fixed end to form a circular ring shape, the second rod member is fixed end to form a circular ring shape, the first rod member and the second rod member are distributed up and down, the single-layer net shell comprises a fourth rod member, the fourth rod member is fixed on the hub node, the first rod member is welded with a connecting plate, the fourth rod member at the outer side is welded on the connecting plate, and the third rod member is welded between the connecting plate and the second rod member.
3. The cable-less suspended dome structure of claim 2, wherein: the fixed node comprises a reinforcing rod I and a reinforcing rod II, the reinforcing rod I and the rod piece I are welded and fixed, the diameter of the reinforcing rod I is larger than that of the rod piece I, the reinforcing rod II is welded between the reinforcing rod I and the rod piece II, the rod piece III is welded between the reinforcing rod I and the rod piece II, the diameter of the reinforcing rod II is larger than that of the rod piece III, and the cable lug plate I is welded between the reinforcing rod I, the reinforcing rod II and the rod piece IV.
4. The cable-less suspended dome structure of claim 1, wherein: the hub node adopts the cylinder shape, the inside of hub node is equipped with the cavity, the welding has the stiffening rib in the cavity, the stiffening rib sets up quantity and is 5, and wherein the stiffening rib is as the intermediate lamella, and it is followed the diameter setting of hub node, the balance of stiffening rib is as the curb plate, and it is welded in the both sides of intermediate lamella.
5. The cable-less suspended dome structure of claim 1, wherein: the support structure comprises an upper support plate, a stay bar and a lower support plate, wherein the stay bar is fixed between the upper support plate and the lower support plate, a second connection lug plate is fixed at the bottom of the hub node, the second connection lug plate is fixedly connected with the upper support plate, and the first connection lug plate is fixedly connected with the lower support plate.
6. The endless cable suspended dome structure of claim 5, wherein: the upper support plate comprises a first plate body and a second plate body, wherein the first plate body is welded on the second plate body, a notch I is formed between the first plate bodies, the second connecting lug plate is arranged in the notch I, a first sticking plate is welded on the inner side of the first plate body, the first sticking plate is welded and fixed with the second connecting lug plate, the lower support plate comprises a third plate body and a fourth plate body, the third plate body is welded on the fourth plate body, a notch II is formed between the third plate body, the first connecting lug plate is arranged in the notch II, a second sticking plate is welded on the inner side of the third plate body, the second sticking plate is welded and fixed with the first connecting lug plate, and the supporting rod is welded between the second plate body and the fourth plate body.
7. The cable-less suspended dome structure of claim 6, wherein: the second plate body and the fourth plate body are welded with limiting plates, the supporting rods are provided with limiting grooves, the limiting plates are clamped into the limiting grooves, and meanwhile the limiting plates are welded and fixed with the supporting rods.
8. The tension construction method based on the loop-free cable suspended dome structure as set forth in claim 1, which is characterized by comprising the following steps:
step A, assembling and welding a single-layer net shell and a ring truss, mounting a first cable lug plate on a fixed node between the single-layer net shell and the ring truss, arranging a steel casting in the middle, mounting a second cable lug plate on the bottom of the steel casting, arranging a hub node on the single-layer net shell, and mounting a supporting structure on the bottom of the hub node, wherein a first connecting lug plate is arranged on the bottom of the supporting structure;
step B, tensioning construction of the inhaul cable in batches: the inhaul cable is divided into four batches of inhaul cables,
the first batch is SJ1 and SJ5;
the second batch is SJ3 and SJ7;
the third batch is SJ2 and SJ6;
the fourth batch is SJ4 and SJ8;
tensioning the first batch of cables, tensioning the second batch of cables, tensioning the third batch of cables, and tensioning the fourth batch of cables;
step C, stretching modes of each inhaul cable are the same, and the method specifically comprises the following steps:
(1) The inhaul cable is unfolded;
(2) A fixed pulley is arranged on the outer side of the single-layer net shell, a traction rope of a winch is wound on the fixed pulley, the traction rope is fixed on the outer side of a guy cable, and then the guy cable is pulled by the traction rope of the winch, and a cable head I at the outer side of the guy cable is fixedly connected with a cable lug plate I by using a high-altitude vehicle;
(3) Removing a fixed pulley on the outer side of the single-layer net shell, installing the fixed pulley at the middle position of the single-layer net shell, fixing a traction rope at the middle position of a traction rope, and supporting the middle position of the traction rope on a first connecting lug plate by using a high-altitude vehicle through traction of the traction rope of a winch to the traction rope;
(4) Dismantling a fixed pulley at the middle position of the single-layer net shell, installing the fixed pulley at the inner side of the single-layer net shell, fixing a traction rope at the inner side of a traction rope, drawing the traction rope by the traction rope of a winch, fixedly connecting a rope head II at the inner side of the traction rope with a rope lug plate through a tensioning device by utilizing a high-altitude vehicle, and dismantling the fixed pulley to complete single-rope tensioning construction.
9. The tension construction method of the cable-less suspended dome structure according to claim 8, wherein: in the step C, the inhaul cable is unfolded and opened as follows:
1) Place discoid cable on the exhibition cable dish, this exhibition cable dish includes base and rack, the base includes four steel sheets of alternately distributing, the welding has the connection pad between the steel sheet, and the outside of four steel sheets is equipped with the opening, and the welding has the coil in the opening, the rack includes the stand and places the member, place member horizontal welding be in on the stand, place the member with the welding has the stiffener of slope between the stand, the cable is placed specifically and is: setting a base on a concrete foundation, lifting a disc-shaped inhaul cable by adopting a crane, placing the disc-shaped inhaul cable on a placing rod piece, enabling a stand column to pass through a central hole formed by the disc-shaped inhaul cable, supporting the inhaul cable on a reinforcing rod at the same time, lifting a placing frame with the inhaul cable by adopting the crane, and inserting the stand column of the placing frame into a connecting hole of a connecting disc;
2) Setting a display cable frame on a concrete basis, and setting a proper number of display cable frames according to the length of a inhaul cable, wherein the display cable frame comprises a fixed seat and a steel pipe, and the steel pipe is horizontally fixed on the fixed seat;
3) Installing a guide device on a concrete foundation, wherein the guide device comprises an installation seat and a rotating disc, the installation seat is fixed on the concrete foundation through an installation bolt, the rotating disc rotates on the installation seat through a rotating shaft, a locking nut is connected with the rotating shaft in a threaded mode, the rotating disc is provided with an installation hole, a guide sleeve penetrates through the installation hole, the guide sleeve is provided with a guide hole, the guide sleeve is fixed on the rotating disc through a fixing plate, the rotating disc rotates on the installation seat by a set angle according to the positions of the guide device and a first cable lug plate, and then the locking nut on the rotating shaft is screwed;
4) The outer side of a guy cable is unfolded from a guy cable disc, at the moment, an upright post rotates in a connecting hole of a connecting disc, the guy cable is supported on a steel pipe of a guy cable frame, a cable head at the outer side of the guy cable passes through a guide hole of a guide sleeve, an adjusting rod is clamped in a notch of the guide sleeve, a positioning block fixed at the end of the adjusting rod is arranged in the guide hole, a rubber pad is arranged on the positioning block, a single adjusting rod is provided with two fixing nuts, the positioning block is adjusted, the distance between the rubber pad and the guy cable is controlled to be 1-2mm, one fixing nut is locked at the inner side of the guide sleeve, the other fixing nut is locked at the outer side of the guide sleeve, the cable head at the outer side of the guy cable is limited on the positioning block, and a cable head two at the inner side of the guy cable is fixed on a placing rod through an iron wire;
when the first cable head and the first cable lug plate at the outer side of the cable are fixedly connected through bolts, the second cable head of the cable is supported on the positioning block, after the first cable head and the first cable lug plate are fixed, the fixing nut of the adjusting rod is unscrewed, the adjusting rod is moved out, and then the second cable head of the cable is taken out from the guide hole of the guide sleeve, so that the whole cable is separated from the guide device.
10. The tension construction method of the cable-less suspended dome structure according to claim 8, wherein: the bottom of the first connecting lug plate is provided with a clamping groove, and the middle position of the inhaul cable is clamped into the clamping groove, so that the middle position of the inhaul cable is supported on the first connecting lug plate.
CN202311658872.2A 2023-12-05 2023-12-05 Endless cable suspended dome structure and tensioning construction method Pending CN117569446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311658872.2A CN117569446A (en) 2023-12-05 2023-12-05 Endless cable suspended dome structure and tensioning construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311658872.2A CN117569446A (en) 2023-12-05 2023-12-05 Endless cable suspended dome structure and tensioning construction method

Publications (1)

Publication Number Publication Date
CN117569446A true CN117569446A (en) 2024-02-20

Family

ID=89889930

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311658872.2A Pending CN117569446A (en) 2023-12-05 2023-12-05 Endless cable suspended dome structure and tensioning construction method

Country Status (1)

Country Link
CN (1) CN117569446A (en)

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