CN104763091B - The netted ceiling system of large span and its installation method - Google Patents
The netted ceiling system of large span and its installation method Download PDFInfo
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- CN104763091B CN104763091B CN201510117684.8A CN201510117684A CN104763091B CN 104763091 B CN104763091 B CN 104763091B CN 201510117684 A CN201510117684 A CN 201510117684A CN 104763091 B CN104763091 B CN 104763091B
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Abstract
The invention belongs to building decoration furred ceiling field, more particularly to a kind of netted ceiling system of large span and its installation method.The present invention is for the open-type lighting roof in existing public building, the exposure of its roof truss and support system have impact on the aesthetic of large space, increased decorative ceiling, the problem of power restriction is received by boom rest roof truss, disclose a kind of netted ceiling system of large span and its installation method, it includes cable net structure, netted furred ceiling and some card connectors, cable net structure is laid on structure ring beam, cable net structure is formed using some cable wires braiding of autofrettage, and netted furred ceiling is fixedly installed on cable net structure by card connector.In the form of cable net structure is by the force of gravity of netted furred ceiling to structure ring beam, instead of existing middle utilization furred ceiling and conversion layer by the form of the force of gravity of netted furred ceiling to roof truss structure, ensure that roof truss does not stress, and cable net structure can be hidden on netted furred ceiling, it is ensured that the construction quality and aesthetics of netted furred ceiling.
Description
Technical field
The invention belongs to building decoration furred ceiling field, more particularly to a kind of netted ceiling system of large span and its installation side
Method.
Background technology
Certain megastore roof uses double layer opening formula Roof structure, and both sides are fixed roof truss, and centre is to open
Formula roof truss.Middle openable roof truss cannot stress, and need in netted furred ceiling install large LED screen, difficulty of construction pole
Greatly.The long span of the netted furred ceiling of this engineering metal reaches 70m, short also to have nearly 30m across direction, while, it is necessary to being installed under roof truss
One LED display of diameter of up to 22.4m of circle.
The installation of existing large span furred ceiling, it will usually which, using the method for suspension rod fixation, its step is：(1) will with suspension rod
Netted furred ceiling is directly hung onto steel roof truss；(2) because opening section roof truss cannot stress, need to be set under roof truss one turn
Change a layer truss；(3) furred ceiling is fixed on conversion layer truss.
The drawbacks of this kind of suspension rod fixed solution is：
1st, the load of netted furred ceiling is all applied on roof truss, although structure stress is concise, but steel roof truss
The external loads that can be born are limited, and whole netted furred ceiling is hung onto roof truss, and centre is also provided with conversion layer, it is clear that beyond room
The peak load that frame can bear, need to carry out consolidation process to the roof truss of steel construction, therefore installation steps are quite cumbersome, and engineering is made
Industry amount is big, influences the duration.
2nd, suspension rod can influence the attractive in appearance of whole moulding among sight line, not reach initial appearance design requirement.
The difficult point of the space roof structure engineering of such large span is：
Long span with it is short across span be above 20m, other design creativity elements are also incorporated in Roof structure, for example：Plus
Enter large LED screen, the design of hollow printing opacity etc., high to attractive in appearance, modeling requirement, whole moulding build is huge.
Such engineering considers that special roof steel structure system can be used mostly for vision, different modeling, this engineering
Established estate sets up and is calculated as that roof truss can be opened, and this part cannot bear external force, and fixed roof truss part can only also bear the one of very little
Portion of external load, it is impossible to support the weight of whole metal truss furred ceiling, therefore, the support of rack furred ceiling turns into conceptual design
A great problem.In addition, it is contemplated that the hollow modeling requirement of such engineering, can intuitively see top roof truss structure, conceptual design
When also need to consider the visual effect of whole moulding.
The content of the invention
It is an object of the invention to provide a kind of netted ceiling system of large span and its installation method, will using cable net structure
Form in the force of gravity of netted furred ceiling to structure ring beam, instead of using furred ceiling and conversion layer in the prior art by netted furred ceiling
Force of gravity to roof truss structure form, it is ensured that roof truss does not stress, and the cable net structure can be hidden in described netted hang
On top, it is ensured that the construction quality and aesthetics of netted furred ceiling.
In order to solve the above technical problems, the present invention provides following technical scheme：
A kind of netted ceiling system of large span, including cable net structure, netted furred ceiling and some card connectors, the rope
Web frame is laid on structure ring beam, and the cable net structure is formed using some cable wires braiding of autofrettage, described netted
Furred ceiling is fixedly installed on the cable net structure by some card connectors.
Preferably, in the above-mentioned netted ceiling system of large span, the netted furred ceiling is by some mesh sheet unit splicing groups
Structure is reticulated, the mesh sheet unit includes mesh sheet skeleton and two pieces of curve rulers being arranged on the mesh sheet skeleton, described
Two pieces of curve ruler evaginations form hollow structure.
Preferably, in the above-mentioned netted ceiling system of large span, the mesh sheet skeleton includes upper curve steel bar, bottom
Curve steel bar, the vertical connecting rod of the vertical connecting rod in both ends and some middle parts, upper curve steel bar and the lower curve steel
Bar is correspondingly arranged up and down, and the two ends of upper curve steel bar and the lower curve steel bar are respectively by the vertical connecting rod in the end
Connection, the upper curve steel bar is vertical for the position setting middle part of splicing with the side of the lower curve steel bar
Connecting rod, the upper curve steel bar is docked by two symmetrically arranged convex outer curve steel bars and formed, and two pieces of curve rulers set
It is placed between the upper curve steel bar and the lower curve steel bar.
Preferably, in the above-mentioned netted ceiling system of large span, the upper curve steel bar uses channel-section steel, the bottom
Curve steel strip adoption steel plate.
Preferably, in the above-mentioned netted ceiling system of large span, the vertical connecting rod in both ends of the mesh sheet unit sets
There is the concavo-convex joinery and its construction for splicing, adjacent mesh sheet unit is in the vertical connecting rod of the vertical connecting rod in end or middle part docked
Place is connected by split bolt.
Preferably, in the above-mentioned netted ceiling system of large span, the curve ruler is using double-deck aluminium sheet, the Double-layer aluminum
Filling-foam agent in plate.
Preferably, in the above-mentioned netted ceiling system of large span, deploy to ensure effective monitoring and control of illegal activities trend and the institute of cable wire in the cable net structure
The moulding for stating netted furred ceiling moves towards corresponding.
Preferably, in the above-mentioned netted ceiling system of large span, the cable wire is connected to institute by adjustable length mechanism
State on structure ring beam, the adjustable length mechanism includes two U-shaped using flower basket type fastener structures, the flower basket type fastener structures
Shape fastener and three-back-shaped fastener, one end of the U-shaped fastener are respectively equipped with screw rod, the other end respectively with the cable wire and
The structure ring beam is fixedly connected, and the three-back-shaped fastener two ends are provided with the screwed hole matched with the screw rod.
Preferably, in the above-mentioned netted ceiling system of large span, the card connector is by the upper of adjacent net pieces unit
The docking site of portion's curve steel bar is fixedly connected with corresponding one or two cable wires for intersecting.
Preferably, in the above-mentioned netted ceiling system of large span, the card connector includes base plate, cable wire protection board
And some threaded components, the cable wire protection board is provided with the grooves of a groove or two intersections, cable wire protection
Plate can be formed for a cable wire or two cable wires for intersecting after being linked together by the threaded components with the base plate
The passage for passing through.
Preferably, in the above-mentioned netted ceiling system of large span, the structure ring beam has two, one of structure ring
Beam is located at the inside of another structure ring beam, and the cable net structure is laid in the region between two structure ring beams.
The invention also discloses a kind of installation method of the netted ceiling system of large span as described above, including following step
Suddenly：
The first step, the cable prestressing in cable net structure is installed on structure ring beam after applying by adjustable length mechanism；
Second step, using the position of cable wire in adjustable length institutional adjustment cable net structure；
3rd step, each mesh sheet unit is installed on the cable net structure by the card connector formed it is whole big across
Spend netted ceiling system.
From techniques disclosed above scheme, compared with prior art, beneficial effects of the present invention are as follows：
1st, furred ceiling substitutes original suspension rod and conversion coating using cable net structure in the present invention, and cable wire is carried out at prestressing force in advance
It is fixed to after reason on surrounding structure ring beam, forms a system for level entirety stress, then whole netted furred ceiling is passed through special
Card connector be fixedly installed on cable net structure, it is to avoid roof truss is stressed directly, by structure beam stress, force structure body
System is clear, is reinforced without conversion layer and steel roof truss, and installation steps are succinct.
2nd, by netted furred ceiling and the spatial variations of cable net structure, the netted ceiling system of large span is by traditional vertical hanging
Load, changes over new level pressure grommet load bearing beam, reduces steel using amount, meets decoration rack and the video display canopy of the heavens installs
Load requirement.
3rd, the trend of deploying to ensure effective monitoring and control of illegal activities of cable wire moves towards corresponding with the moulding of the netted furred ceiling in heretofore described cable net structure,
So that the cable net structure is hidden in the top of the netted furred ceiling, that is to say, that cable wire arrangement in cable net structure
Along the arranged direction of netted furred ceiling, intersect arrangement in order, be ideally hidden in grid structure top, cable net structure sight line can not
See, solving traditional scheme middle hanger cannot hide, the impaired problem of aesthetics.
4th, the mesh sheet unit (abbreviation mesh sheet) of the whole rack furred ceiling of the present invention uses hollow moulding, to mitigate its deadweight, leads to
The science bearing capacity calculation of mistake reduces the quantity of the vertical connecting rod in its middle part, the vertical connecting rod only in the middle part of lifting point position is set,
The moulding of mesh sheet top uses channel-section steel form, increases the firmness of the vertical connecting rod in end and the vertical connecting rod in middle part, single mesh sheet
Between internal cavities filled using foaming agent, increase its integral rigidity, solve the problems, such as that grid structure is yielding, each mesh sheet
Between using lenticular docking design, and fastened with split bolt.
5th, the present invention can be assembled into the netted furred ceiling of different shape using multiple mesh sheet units, will be located at the mesh sheet list at edge
Unit is cut into various required shapes, handsome in appearance with being widely used such that it is able to be applied to the netted furred ceiling of arbitrary shape
Advantage.
6th, present invention research and development use special fastener, to connecting strand net and rack system, to adapt to whole rack systems,
General position directly with special single cable clamp part fixing tightwire, connects through X-shaped fastener and is fixed, both in rope net crossover sites
Installation difficulty is simplified, installation quality is in turn ensure that.
Brief description of the drawings
Fig. 1 is the overall structure diagram (top view) of the netted ceiling system of large span of one embodiment of the invention；
Fig. 2 is the netted ceiling system of large span of one embodiment of the invention to install structural representation during netted furred ceiling
Figure；
Fig. 3 is the partial structural diagram of the netted ceiling system of large span of one embodiment of the invention；
Fig. 4 is the structural representation of mesh sheet unit in one embodiment of the invention；
Fig. 5 is the structural representation of the mesh sheet skeleton of mesh sheet unit in one embodiment of the invention；
Fig. 6 is the structural representation of the mesh sheet skeleton of existing mesh sheet unit；
Fig. 7 is the structural representation of rebate fourth of the twelve Earthly Branches structure in one embodiment of the invention；
Fig. 8 is that the vertical connecting rod in middle part of two mesh sheet units in one embodiment of the invention uses split bolt connection signal
Figure；
Fig. 9 is the structural representation of flower basket type fastener structures in one embodiment of the invention；
Figure 10 is the structural representation of single cable clamp part in one embodiment of the invention；
Figure 11 is the structural representation of X-shaped fastener in one embodiment of the invention；
Figure 12 is the winding degree curve map of cable wire 1 in cable net structure；
Figure 13 is cable wire end force analysis figure in one embodiment of the invention.
In figure：1- cable wires, 2- mesh sheet unit, 21- upper curves steel bar, 22- lower curves steel bar, 23- ends vertically connect
Extension bar, 231- convex portions, 232- recesses, 233- bolts hole, the vertical connecting rod in 24- middle parts, 25- curve rulers, 3- video display canopy of the heavens region,
4- structures ring beam, 5- split bolts, 61-U fonts fastener, 63- screw rods, the three-back-shaped fasteners of 62-, 7- cards connector, the mono- ropes of 7a-
Fastener, 7b-X shapes fastener, 71- base plates, 72- cable wires protection board, 721- grooves, 73- threaded components.
Specific embodiment
The netted ceiling system of large span proposed by the present invention is made further in detail below in conjunction with the drawings and specific embodiments
Explanation.According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that, accompanying drawing is adopted
Non- accurately ratio is used with the form for simplifying very much and, is only used to convenience, lucidly aided in illustrating the embodiment of the present invention
Purpose.
It is present embodiment discloses a kind of netted ceiling system of large span including cable net structure, netted with reference to Fig. 1 to Figure 13
Furred ceiling and some card connectors 7, the cable net structure are laid on the structure ring beam 4 of steel, and the cable net structure is used
The braiding of some cable wires 1 of autofrettage is formed, and the netted furred ceiling is fixedly installed on institute by some card connectors 7
State on cable net structure.Original suspension rod and conversion coating are substituted by using cable net structure, after cable wire 1 is carried out into autofrettage in advance
It is fixed on surrounding structure ring beam 4, forms a system for level entirety stress, then whole netted furred ceiling is passed through into special card
Piece connector 7 is fixedly installed on cable net structure, it is to avoid steel roof truss is stressed directly, by structure beam stress, force structure body
System is clear, is reinforced without conversion layer and steel roof truss, and installation steps are succinct.Also, the netted ceiling system of large span is hung down by traditional
Straight hanging load, changes over new level pressure grommet load bearing beam, reduces steel using amount, meets decoration rack and the video display canopy of the heavens
The load requirement of installation.
Preferably, in the above-mentioned netted ceiling system of large span, deploy to ensure effective monitoring and control of illegal activities trend and the institute of cable wire 1 in the cable net structure
The moulding for stating netted furred ceiling moves towards corresponding, so that the cable net structure is hidden in the top of the netted furred ceiling,
That is, cable wire 1 arranges the arranged direction along netted furred ceiling in cable net structure, intersect arrangement in order, be ideally hidden in
Grid structure top, cable net structure sight line is invisible, and solving traditional scheme middle hanger cannot hide, and aesthetics is impaired to ask
Topic.
Preferably, in the above-mentioned netted ceiling system of large span, the netted furred ceiling is by the assembled group of some mesh sheet units 2
Structure is reticulated, the mesh sheet unit 2 includes mesh sheet skeleton and two pieces of curve rulers 25 being arranged on the mesh sheet skeleton, institute
State two pieces of evaginations of curve ruler 25 and form hollow structure.Mesh sheet unit 2 uses hollow moulding, can not only conduct oneself with dignity to mitigate its, and
And with modeling effect.
Preferably, in the above-mentioned netted ceiling system of large span, the mesh sheet unit 2 positioned at edge can be cut into required shape
Shape, to be assembled into variously-shaped netted furred ceiling.Therefore, the netted furred ceiling of arbitrary shape can be constituted, with being widely used, moulding
Advantage attractive in appearance.
Preferably, emphasis is asked to refer to Fig. 5, the mesh sheet skeleton includes upper curve steel bar 21, lower curve steel bar 22, two
The vertical connecting rod 24 of the vertical connecting rod 23 in end and some middle parts, upper curve steel bar 21 is right about 22 with lower curve steel bar
Should set, upper curve steel bar 21 is connected by the vertical connecting rod 23 in the end respectively with the two ends of the lower curve steel bar 22
Connect, the upper curve steel bar 21 is perpendicular for the position setting middle part of splicing with the side of the lower curve steel bar 22
To connecting rod 24, the upper curve steel bar 21 is docked by two symmetrically arranged convex outer curve steel bars and formed, two pieces of songs
Line plate 25 is arranged between the upper curve steel bar 21 and the lower curve steel bar 22.The upper curve steel bar 21 and institute
The position that state is used to splice on the side of lower curve steel bar 22 sets the vertical connecting rod 24 in middle part, refers to only in lifting point
Position sets the vertical connecting rod 24 in middle part, in this way, it is vertical to effectively reduce middle part compared to existing mesh sheet unit (as shown in Figure 6)
The quantity of connecting rod 24, reduces steel usage amount, mitigates the quality of mesh sheet unit 2, so as to reduce the weight of whole netted furred ceiling.
Preferably, in the case where the vertical connecting rod 24 in middle part is reduced, in order to ensure the resistance to overturning of netted furred ceiling, make
For the upper curve steel bar 21 of stressed member uses channel-section steel, the firmness of the vertical connecting rod 24 in middle part can be increased, it is described
Lower curve steel bar 22 uses steel plate.
Preferably, emphasis is asked to refer to Fig. 7, the vertical connecting rod 23 in both ends of the mesh sheet unit 2 is provided with for splicing
Concavo-convex joinery and its construction, concavo-convex joinery and its construction includes 232 points of the convex portion 231 for matching and recess 232, the convex portion 231 and recess
It is not arranged in the vertical connecting rod 23 in the end of the mesh sheet unit both sides, adjacent mesh sheet unit 2 is vertical in the end of docking
Connected by split bolt 5 at the vertical connecting rod 24 of connecting rod 23 or middle part, the middle part that Fig. 8 show two mesh sheet units vertically connects
Extension bar uses split bolt connection diagram, is opened up in the vertical connecting rod 23 in end or the vertical connecting rod 24 in middle part for described
The bolt hole 233 that split bolt 5 is passed through.Namely using lenticular docking design between each mesh sheet, and fastened with split bolt 5
Tightly, this new mesh sheet connected mode, eliminates the overhead welding operating type that installation effectiveness is low, safety is not guaranteed, can
To improve the quality and speed during in-site installation, with easy to assembly, installation effectiveness advantage high.
Preferably, in the above-mentioned netted ceiling system of large span, the curve ruler 25 is using double-deck aluminium sheet, the bilayer
Filling-foam agent in aluminium sheet.Filled using foaming agent, the integral rigidity of mesh sheet unit 2 can be increased, solve netted furred ceiling easy
The problem of deformation.
Preferably, in the above-mentioned netted ceiling system of large span, emphasis is asked to refer to Fig. 9, the cable wire 1 can by length
Regulating mechanism is connected on the structure ring beam 4, and the adjustable length mechanism uses flower basket type fastener structures, the flower basket type fastener
Structure includes two U-shaped fasteners 61 and three-back-shaped fastener 62, and one end of the U-shaped fastener 61 is respectively equipped with screw rod 63,
The other end is fixedly connected with the cable wire 1 and the structure ring beam 4 respectively, the two ends of three-back-shaped fastener 62 be provided with it is described
The screwed hole that screw rod 63 matches.
Preferably, in the above-mentioned netted ceiling system of large span, the card connector 7 is by adjacent net pieces unit 2
The cable wire 1 that the docking site of upper curve steel bar 21 intersects with corresponding one or two is fixedly connected.
Preferably, refer to Figure 10 and Figure 11, if the card connector 7 include base plate 71, cable wire protection board 72 and
Dry threaded components 73, the cable wire protection board 72 is provided with the groove 721 of a groove 721 or two intersections, the cable wire 1
Protective case can be formed for a cable wire 1 or two friendships after being linked together by the threaded components 73 with the base plate 71
The passage that the cable wire 1 of fork is passed through.Specifically, the card connector 7 includes list cable clamp part 7a and X-shaped fastener 7b.Such as Figure 10
Shown, single cable clamp part 7a includes base plate 71, cable wire protection board 72 and some threaded components 73, the cable wire protection board 72
Be provided with a groove 721, the protective case of the cable wire 1 linked together by the threaded components 73 with the base plate 71 after energy
Enough form the passage passed through for a cable wire 1.As shown in figure 11, the X-shaped fastener 7b include base plate 71, cable wire protection board 72 with
And some threaded components 73, the cable wire protection board 72 is provided with two grooves 721 of intersection, the protective case of the cable wire 1 and institute
Stating after base plate 71 is linked together by the threaded components 73 can form the passage passed through for the cable wire 1 of two intersections.
Preferably, in the above-mentioned netted ceiling system of large span, the structure ring beam 4 has two, one of structure
Ring beam 4 is located at the inside of another structure ring beam 4, and the cable net structure is laid in the region between two structure ring beams 4
It is interior.For example, the interior zone of structure ring beam 4 small in the present embodiment can be used for setting large LED lamp or as the video display canopy of the heavens
Region 3 so that the structure style of netted furred ceiling is more diversified.
Please continue to refer to Fig. 1 to Figure 11, the invention also discloses a kind of netted ceiling system of large span as described above
Installation method, comprises the following steps：
The first step, structure ring beam 4 is installed on after the prestress application of cable wire 1 in cable net structure by adjustable length mechanism
On.The adjustable length mechanism use flower basket type fastener structures, the flower basket type fastener structures include two U-shaped fasteners 61 with
And three-back-shaped fastener 62, one end of the U-shaped fastener 61 is respectively equipped with screw rod 63, the other end respectively with the cable wire 1 and
The structure ring beam 4 is fixedly connected, and the two ends of three-back-shaped fastener 62 are provided with the screwed hole matched with the screw rod 63.
Second step, using the position of cable wire 1 in adjustable length institutional adjustment cable net structure.By three-back-shaped fastener 62 and two
Screw effect between the screw rod 63 of individual U-shaped fastener 61, can further or zoom out between two U-shaped fasteners 61 away from
From so as to realize the extension and contraction control to cable wire in cable net structure 1.
3rd step, each mesh sheet unit 2 is installed on the cable net structure by the card connector 7 and forms whole big
The netted ceiling system of span.To adapt to whole rack systems, list cable clamp part 7a is directly used by the net of cable wire 1 and two at most of position
Piece is fixed, and is fixed cable wire 1 and two mesh sheet by X-shaped fastener 7b in rope net crossover sites, has both simplified installation
Difficulty, in turn ensure that installation quality.
In the present embodiment, netted furred ceiling quality is as follows with cable net structure force analysis：
1) quality of mesh sheet unit
The monolithic mesh sheet of the present embodiment is that the outer alclad sheet of middle steel skeleton is made, and monolithic is highly 800mm.Wherein,
Aluminium sheet 1.5mm is thick, and steel skeleton is made by 5mm steel plates.
Aluminium sheet area：S=2 × (3.45+3.33)=13.56m2
Aluminium sheet quality：M=13.56 × 0.0015 × 2.7 × 103=54.9kg
Horizontal steel plate area：S1=0.404 × 2+0.129 × 2+0.125 × 2=1.32m2
Two ends vertical steel plate suqare：S2=0.162 × 2=0.324m2
Plate quality：M=(1.32+0.324) × 0.005 × 7.85 × 103+ 4.39 × 0.8 × 4=78.6kg
Foaming agent volume：V=0.404 × 0.8=0.323m3
Foaming agent quality：M=0.323 × 20=6.46kg
The single mesh tablet quality of the present embodiment：mAlways=54.9+78.6+6.46=140.0kg
And existing mesh sheet unit weight is calculated as follows：It is 3mm square steel tubes, two that the vertical connecting rod in middle part uses 50*50 thickness
It is 3mm rectangular steel pipes that the vertical connecting rod in end on side uses 100*50 thickness, and upper and lower part curve steel strip adoption thickness is 5mm steel
Plate.Wherein：
Tube quality：m1=4.39 × 0.8 × 14+6.71 × 0.8 × 2=59.9kg
Plate quality：m2=0.404 × 2 × 0.005 × 7.85 × 1000=31.7kg
Outer alclad sheet quality：m3=54.9kg
The quality of existing monolithic mesh sheet：M=59.9+31.7+54.9=146.5kg
As seen from the above, the quality of the monolithic mesh sheet of the present embodiment with the Mass lost of existing monolithic mesh sheet 6.5Kg.
2) rope net stress is calculated
Refer to Figure 12 and Figure 13, Figure 12 show the winding degree curve map of cable wire 1 in rope net, Figure 13 show the present invention one
Cable wire end force analysis figure in embodiment.It is assumed that load is distributed with uniform line load on cable wire 1, and without mutually between cable wire 1
Effect.
Uniformly line load is：Q=140.0 × 9.8 × 10-3/ (2.27 × 2)=0.302kN/m
Design load (takes safety coefficient 1.5)：Q '=1.5 × 0.288=0.453kN/m
A rope length most long is：L=41.3m
Cable wire is maximum in two ends axle power, and undertaking vertical force needed for it is：FIt is perpendicular=0.432 × 41.3/2=9.35kN
Under the effect of uniform line load, sag curve is parabolic type to cable wire, and control cable wire midway deflection is 1/250.Ask
The analytic equation for solving curve is：Wherein, x represents the forward direction of horizontal direction, and y represents vertical
The forward direction in direction.
Wherein, θ refers to the horizontal sextant angle of cable end.
FRope=FIt is perpendicular/ sin θ=9.35/0.016=584.4kN, wherein, FRopeRefer to steel cable stretching force, FIt is perpendicularIt refer to cable wire end institute
The vertical force received.
Cable wire tensile strength takes 1670MPa.
Cable wire sectional area：S=584.4 × 10-3/ 1670=3.50 × 10-4m2=350mm2
Rope diameter：
Note：Without interaction between whole calculation assumption cable wire, and take a cable wire most long and calculated.And actual mistake
Cheng Zhong, whole rope net has interaction as a system between cable wire.Therefore, this calculating process be it is too conservative,
Rough calculation simply is carried out to cable net structure, not as the foundation of actual design.
In sum, the invention has the advantages that：
Furred ceiling substitutes original suspension rod and conversion coating using cable net structure in the present invention, and cable wire is carried out into autofrettage in advance
After be fixed on surrounding structure ring beam, the system for forming level entirety stress, then by whole netted furred ceiling by special
Card connector is fixedly installed on cable net structure, it is to avoid roof truss is stressed directly, by structure beam stress, force structure system
Clearly, reinforced without conversion layer and steel roof truss, installation steps are succinct.
2nd, by netted furred ceiling and the spatial variations of cable net structure, the netted ceiling system of large span is by traditional vertical hanging
Load, changes over new level pressure grommet load bearing beam, reduces steel using amount, meets decoration rack and the video display canopy of the heavens installs
Load requirement.
3rd, the trend of deploying to ensure effective monitoring and control of illegal activities of cable wire moves towards corresponding with the moulding of the netted furred ceiling in heretofore described cable net structure,
So that the cable net structure is hidden in the top of the netted furred ceiling, that is to say, that cable wire arrangement in cable net structure
Along the arranged direction of netted furred ceiling, intersect arrangement in order, be ideally hidden in grid structure top, cable net structure sight line can not
See, solving traditional scheme middle hanger cannot hide, the impaired problem of aesthetics.
4th, the mesh sheet unit (abbreviation mesh sheet) of the whole rack furred ceiling of the present invention uses hollow moulding, to mitigate its deadweight, leads to
The science bearing capacity calculation of mistake reduces the quantity of the vertical connecting rod in its middle part, the vertical connecting rod only in the middle part of lifting point position is set,
The moulding of mesh sheet top uses channel-section steel form, increases the firmness of the vertical connecting rod in end and the vertical connecting rod in middle part, single mesh sheet
Between internal cavities filled using foaming agent, increase its integral rigidity, solve the problems, such as that grid structure is yielding, each mesh sheet
Between using lenticular docking design, and fastened with split bolt.
5th, the present invention can be assembled into the netted furred ceiling of different shape using multiple mesh sheet units, will be located at the mesh sheet list at edge
Unit is cut into various required shapes, handsome in appearance with being widely used such that it is able to be applied to the netted furred ceiling of arbitrary shape
Advantage.
6th, present invention research and development use special fastener, to connecting strand net and rack system, to adapt to whole rack systems,
General position directly with special single cable clamp part fixing tightwire, connects through X-shaped fastener and is fixed, both in rope net crossover sites
Installation difficulty is simplified, installation quality is in turn ensure that.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Scope.
Claims (11)
1. the netted ceiling system of a kind of large span, it is characterised in that including the connection of cable net structure, netted furred ceiling and some cards
Part, the cable net structure is laid on structure ring beam, and the cable net structure is formed using some cable wires braiding of autofrettage,
The netted furred ceiling is fixedly installed on the cable net structure by some card connectors, and the netted furred ceiling is by some
Mesh sheet unit splicing constitutes network structure, and the mesh sheet unit includes mesh sheet skeleton and be arranged on the mesh sheet skeleton two
Block curve ruler, two pieces of curve ruler evaginations form hollow structure.
2. the netted ceiling system of large span as claimed in claim 1, it is characterised in that the mesh sheet skeleton includes upper curve
Steel bar, lower curve steel bar, the vertical connecting rod of the vertical connecting rod in both ends and some middle parts, upper curve steel bar with it is described under
Portion's curve steel bar is correspondingly arranged up and down, and upper curve steel bar is perpendicular by the end respectively with the two ends of the lower curve steel bar
Connected to connecting rod, the upper curve steel bar is described for the position setting of splicing with the side of the lower curve steel bar
The vertical connecting rod in middle part, the upper curve steel bar is docked by two symmetrically arranged convex outer curve steel bars and formed, described two pieces
Curve ruler is arranged between the upper curve steel bar and the lower curve steel bar.
3. the netted ceiling system of large span as claimed in claim 2, it is characterised in that the upper curve steel bar uses groove
Steel, the lower curve steel bar uses steel plate.
4. the netted ceiling system of large span as claimed in claim 2, it is characterised in that the both ends of the mesh sheet unit are vertical
Connecting rod is provided with the concavo-convex joinery and its construction for splicing, and adjacent mesh sheet unit is perpendicular in the vertical connecting rod in end of docking or middle part
Connected by split bolt at connecting rod.
5. the netted ceiling system of large span as claimed in claim 1, it is characterised in that the curve ruler using double-deck aluminium sheet,
Filling-foam agent in the double-deck aluminium sheet.
6. the netted ceiling system of large span as claimed in claim 1, it is characterised in that cable wire deploys to ensure effective monitoring and control of illegal activities in the cable net structure
Trend moves towards corresponding with the moulding of the netted furred ceiling.
7. the netted ceiling system of large span as claimed in claim 1, it is characterised in that the cable wire passes through adjustable length mechanism
It is connected on the structure ring beam, the adjustable length mechanism uses flower basket type fastener structures, the flower basket type fastener structures bag
Include two U-shaped fasteners and three-back-shaped fastener, one end of the U-shaped fastener is respectively equipped with screw rod, the other end respectively with institute
State cable wire and the structure ring beam is fixedly connected, the three-back-shaped fastener two ends are provided with the screw thread matched with the screw rod
Hole.
8. the netted ceiling system of large span as described in any one in claim 1-7, it is characterised in that the card connection
The docking site of the upper curve steel bar of adjacent net pieces unit is fixed and connected by part with the cable wire that corresponding one or two are intersected
Connect.
9. the netted ceiling system of large span as claimed in claim 8, it is characterised in that the card connector include base plate,
Cable wire protection board and some threaded components, the cable wire protection board are provided with the groove of a groove or two intersections, institute
Stating can form for a cable wire or two after cable wire protection board is linked together with the base plate by the threaded components
The passage that the cable wire of intersection is passed through.
10. the netted ceiling system of large span as claimed in claim 1, it is characterised in that the structure ring beam has two, wherein
One structure ring beam is located at the inside of another structure ring beam, and the cable net structure is laid between two structure ring beams
In region.
The installation method of the netted ceiling system of large span in a kind of 11. 1-10 such as claim as described in any one, its feature
It is to comprise the following steps：
The first step, the cable prestressing in cable net structure is installed on structure ring beam after applying by adjustable length mechanism；
Second step, using the position of cable wire in adjustable length institutional adjustment cable net structure；
3rd step, each mesh sheet unit is installed on the cable net structure by the card connector and forms whole large span net
Shape ceiling system.
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| CN201510117684.8A CN104763091B (en) | 2015-03-18 | 2015-03-18 | The netted ceiling system of large span and its installation method |
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| CN104763091A CN104763091A (en) | 2015-07-08 |
| CN104763091B true CN104763091B (en) | 2017-07-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112411382B (en) * | 2020-10-27 | 2022-07-15 | 中国一冶集团有限公司 | Installation construction method of light hole safety protection device |
| CN112523414B (en) * | 2020-12-16 | 2022-11-04 | 广东省建筑设计研究院有限公司 | Bucket screen installation design method applied to large-span rigid roof cable dome structure |
| CN112523413B (en) * | 2020-12-16 | 2022-09-09 | 广东省建筑设计研究院有限公司 | Detachable reset design method applied to scoop screen in large-span cable dome structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3141366U (en) * | 2008-02-19 | 2008-05-01 | 芳樹 佐伯 | Net slider |
| CN101832028A (en) * | 2010-03-23 | 2010-09-15 | 中化二建集团有限公司 | Construction method of thin shell with thin-shell structure |
| CN203097055U (en) * | 2012-12-18 | 2013-07-31 | 南京柏森实业有限责任公司 | Strip grating |
| CN203440975U (en) * | 2013-07-15 | 2014-02-19 | 成都佳美嘉科技有限公司 | Integrated ceiling structure |
| CN103981994A (en) * | 2014-05-26 | 2014-08-13 | 苏州设计研究院股份有限公司 | Arch-shaped ceiling structure |
| CN204609098U (en) * | 2015-03-18 | 2015-09-02 | 上海市建筑装饰工程集团有限公司 | The netted ceiling system of large span |
-
2015
- 2015-03-18 CN CN201510117684.8A patent/CN104763091B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3141366U (en) * | 2008-02-19 | 2008-05-01 | 芳樹 佐伯 | Net slider |
| CN101832028A (en) * | 2010-03-23 | 2010-09-15 | 中化二建集团有限公司 | Construction method of thin shell with thin-shell structure |
| CN203097055U (en) * | 2012-12-18 | 2013-07-31 | 南京柏森实业有限责任公司 | Strip grating |
| CN203440975U (en) * | 2013-07-15 | 2014-02-19 | 成都佳美嘉科技有限公司 | Integrated ceiling structure |
| CN103981994A (en) * | 2014-05-26 | 2014-08-13 | 苏州设计研究院股份有限公司 | Arch-shaped ceiling structure |
| CN204609098U (en) * | 2015-03-18 | 2015-09-02 | 上海市建筑装饰工程集团有限公司 | The netted ceiling system of large span |
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