CN109629691A - A kind of single layer intersects rope branch structure without inner ring - Google Patents

A kind of single layer intersects rope branch structure without inner ring Download PDF

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Publication number
CN109629691A
CN109629691A CN201811547222.XA CN201811547222A CN109629691A CN 109629691 A CN109629691 A CN 109629691A CN 201811547222 A CN201811547222 A CN 201811547222A CN 109629691 A CN109629691 A CN 109629691A
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CN
China
Prior art keywords
rope
single layer
inner ring
saddle
branch structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811547222.XA
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Chinese (zh)
Inventor
薛素铎
田学帅
刘越
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Beijing University of Technology
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Beijing University of Technology
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Filing date
Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN201811547222.XA priority Critical patent/CN109629691A/en
Priority to PCT/CN2018/123668 priority patent/WO2019218680A1/en
Publication of CN109629691A publication Critical patent/CN109629691A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/342Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00Roofs; Roof construction with regard to insulation
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00Roofs; Roof construction with regard to insulation
    • E04B7/14Suspended roofs

Abstract

A kind of single layer intersects rope branch structure without inner ring, belongs to space single layer rope branch construction applications.It includes that the outer ring being made of saddle-shape not in the same plane and the single layer Spatial Cable net system two parts being made of the drag-line of more arranged crosswises form.This structure outer ring is saddle type curve, and saddle-shape curved surface is interior by the downwardly convex formation track cable of a part of rope, for resisting the loads such as downward self weight, sleet;Another part rope raises upward to form steadying line, for resisting the loads such as upward wind suction.A kind of single layer, which intersects rope branch structure without inner ring, has many advantages, such as that reasonable structural arrangement (Suo Li is evenly distributed), anti-Progressive Collapse are significant, moulding is slim and graceful, aesthetics of structural design effect is good, and is easy to make and construct, with very strong engineering practice feasibility.

Description

A kind of single layer intersects rope branch structure without inner ring
Technical field
The present invention is that a kind of single layer without inner ring intersects rope branch structure, belongs to a kind of novel single-layer space structure system, mainly Applied to space structure field.Functional requirement for meeting the stadium of the middle opening of super-span has significant excellent Gesture.
Background technique
Suspended-cable structure is a kind of structure in space-load state, is chiefly used in Long Span Roof Structures.Suspended-cable structure It is widely used in bridge structure, is then suitable for long span building object for building construction, as (gymnasium, natatorium are big for sports building Sports ground etc.), industrial plant, culture life build (the exhibition hall acrobatics Room, market etc.) and exceptional structure etc..
In the public buildings such as stadiums, Cable Structure is a kind of form of Cable Structure.The arrangement form of Cable Truss Structure Mainly there are parallel arrangement, square crossing arrangement, spoke type arrangement etc..Wherein the shortcoming of spoke type cable truss has essentially consisted in Strop in center, once inner ring fails, structural system is entirely ineffective, even results in structure and integrally collapses.In addition rigid bracing In the presence of needing to consider the destabilization problems of strut, the intensity of material cannot be given full play to, economy is bad.
Summary of the invention:
The purpose of the invention is to make up the anti-Progressive Collapse difference of existing structure and structure compression leverage stability Problem proposes a kind of single layer suitable for stadium without inner ring and intersects rope branch structure type.
It includes the outer ring being made of saddle-shape not in the same plane and the drag-line group by several arranged crosswises At single layer Spatial Cable net system two parts composition, being formed, there is the middle opening of good space-load performance, periphery to arrange room The rope branch structure type in face.
On the one hand the effect of saddle-shape curved surface can undertake the downward vertical lotus such as self weight, snow load, roofing other load It carries;On the other hand the wind load suction upward to roofing can be undertaken.
The process that single layer is formed is: first determining side curve by saddle-shape formula, forms saddle-shape curved surface, then the curve of rope With the intersection section for being in fact exactly saddle-shape curved surface with the perpendicular for being tangential on virtual inner ring, and two endpoints of intersection section are in horse On saddle outer ring curve.Intersection section is all space curve, is not straight line.All nodes are to intersect two-by-two, there is no two with The case where upper space curve intersects at a point.
Work progress: the assembling splicing of this structure fringe truss is completed, and then on ground, face handle whole rope is completed, rope and rope Crossed node uses node free to rotate with the node of listed rope and rope, to keep power transmission between rope and rope brighter Really, positive pressure is only transmitted.When structure entirety span is little, designed using single rope and single rope;It is single when span is larger When the diameter that rope needs is very big, it is more conducive to construct than single using double joint, it is also safer for structure.Ground is completed it Afterwards, it is directly promoted to design height, successively stretching rope, final rope are fixed on the otic placode of fringe truss, can be completed and apply stage by stage Work.
This system avoids inner ring presence well, there is inner ring structural body compared with spoke type etc. has inner ring structural system When span increases, the power of inner ring is very big for system, exceeds existing production technique so as to cause annular diameters are excessive.Compared in having Ring, this structure Suo Li distribution is more uniform, makes full use of the strength of materials, has very considerable economy.
Consider from structural system global analysis, every single way cable can individually bear load independently of other ropes, therefore i.e. Make the disconnected rope of certain one or a few Suo Fasheng and exit work, structure residual part can still undertake load, and structure occurs whole continuous The probability that property is collapsed is smaller.This structure outer ring is saddle type curve, passes through the downwardly convex formation of a part of rope in saddle-shape curved surface Track cable, for resisting the loads such as downward self weight, sleet;Another part rope raises upward to form steadying line, for resist to On the loads such as wind suction.For the sport field structure of middle opening, periphery arrangement roofing, when roofing uses light material simultaneously When wind load is larger, even if total vertical load is upward.This pole in special circumstances, track cable becomes steadying line, steadying line Become track cable, structural system can normally undertake the great upward suction under wind action.
A kind of single layer intersects rope branch structure without inner ring, and the node of rope and rope uses node free to rotate, to make Power transmission definitely, only transmits positive pressure between rope and rope.When structure entirety span is little, using single rope and single rope Design.When span is larger, and the diameter that single rope needs is very big, it is more conducive to construct than single using double joint, for structure It is safer.
Constraint is provided by compression fringe truss to balance the horizontal force in drag-line.
Component in the structural system all uses tensional element, makes full use of the tensile property of Cable Structure, realizes Economy well.
A kind of single layer of the invention, which intersects rope branch structure without inner ring, has reasonable structural arrangement (Suo Li is evenly distributed), anti-company Continuous property is collapsed the advantages that significant, moulding is slim and graceful, aesthetics of structural design effect is good, and is easy to make and construct, and has very strong engineering Practical feasibility.
Detailed description of the invention
Fig. 1 is that a kind of single layer without inner ring intersects rope branch structure axonometric drawing
Fig. 2 is that a kind of single layer without inner ring intersects rope branch structure top view
Fig. 3 is that a kind of single layer without inner ring intersects rope branch structural front view
Fig. 4 is that a kind of single layer without inner ring intersects rope branch the structure left view
Fig. 5 is that a kind of single layer for showing empty inner ring without inner ring intersects rope branch structure chart
Fig. 6 is a kind of process schematic that single layer is formed without inner ring intersection rope branch structure
Fig. 7 is a kind of arrangement form citing (top view) of the single layer without inner ring intersection rope branch structure
Fig. 8 is a kind of Dan Suoyu mono- rope crossed node of the single layer without inner ring intersection rope branch structure
Fig. 9 is a kind of double Suo Yushuan rope crossed nodes of the single layer without inner ring intersection rope branch structure
In figure:
1, single cable (track cable)
2, single cable (steadying line)
3, saddle-shape fringe truss
4. bolt
5. bolt hole
6. upper cover plate
7. cover plate
8. rotation central axis
9. bolt
10. rotation central axis
11. upper cover plate
12. bolt hole
13. cover plate
Specific embodiment
A kind of single layer intersects rope branch structure without inner ring, belongs to space single layer rope branch construction applications.It includes saddle-shape side purlin Frame part and the monolayer cable net system part being made of the drag-line of more arranged crosswises, being formed has good space-load performance Middle opening, periphery arrangement roofing intersect Cable Truss Structure system without the full tensioning of inner ring;It is undertaken by the drag-line of arranged crosswise All roof loads provide constraint by compression saddle-shape fringe truss to balance the horizontal force in drag-line.The arranged crosswise Rope and the type of attachment of rope be hinged joint.
In work progress: construction outer ring, outer ring sectional making close up after being welded successfully first, install every single rope, point Stretch-draw forming is criticized, the scheduled form of design institute is reached.
Saddle-shape outer ring curve equation is as follows, is in fact exactly the intersection of saddle-shape curved surface and cylindrical surface, and origin is exactly The central point (the also central point of saddle-shape curved surface) of saddle-shape outer ring curve.In formula, p is a real number greater than 1, table Show saddle-shape outer ring curve in the bending degree in z-axis direction, the smaller expression curve of p is more bent, and p is bigger, and curve is more straight;R is round The radius of cylindrical radius, i.e. saddle-shape outer ring curve the orthographic projection curve (for an annulus) in xoy plane.
And the curve of rope, it is in fact exactly the intersection section of saddle-shape curved surface with the perpendicular for being tangential on virtual inner ring, and hand over Two endpoints of line segment are on saddle-shape outer ring curve.Its formula is as follows:
And its endpoint meets:
In formula, the definition of p, r with saddle-shape outer ring curve equation,It is tangent to virtual inner ring The formula of perpendicular, r0 are the radiuses of virtual inner ring orthographic projection curve (for an annulus) in xoy plane, and (x0, y0) is Point on the orthographic projection curve (for an annulus).
The cable body uses high vanadium rope (Galfan) coating drag-line.Its node diagnostic is: the crossed node of rope and rope Using the node of adjustable-angle: one is the design of node that single rope intersects with single rope;Another kind is double joint rope and double joint The design of node of rope intersection.The single layer Spatial Cable net formed by several drag-line arranged crosswises includes but are not limited to 7 institute of attached drawing The form of column rope network arrangements.

Claims (5)

1. a kind of single layer intersects rope branch structure without inner ring, it is characterised in that: outer ring is using saddle-shape not in the same plane The outer ring of composition and the single layer Spatial Cable net system part being made of the drag-line of more arranged crosswises, formed system without inner ring, in Between opening, periphery arrangement roofing rope branch structure type.
2. single layer according to claim 1 intersects rope branch structure without inner ring, it is characterised in that:
Side curve is first determined by saddle-shape formula, forms saddle-shape curved surface, it is exactly saddle-shape curved surface that then the curve of rope is used in fact With the intersection section for the perpendicular for being tangential on virtual inner ring, and two endpoints of intersection section are on saddle-shape outer ring curve, intersection Section is all space curve;The case where all nodes are to intersect two-by-two, are intersected at a point there is no two or more space curves.
3. single layer according to claim 1 intersects rope branch structure without inner ring, it is characterised in that: the crossed node of rope and rope is adopted With the node of adjustable-angle.
4. single layer according to claim 1 intersects rope branch structure without inner ring, it is characterised in that: the crossed node of rope and rope is adopted The design of node for design of node or double joint rope and double joint the rope intersection intersected with single rope with single rope.
5. single layer according to claim 1 intersects rope branch structure without inner ring, it is characterised in that: the assembling of this structure fringe truss is spelled Completion is connect, then on ground, face handle whole rope is completed, after ground is completed, directly it is promoted to design height, stretching rope, Final rope is fixed on the otic placode of fringe truss, completes construction.
CN201811547222.XA 2018-12-18 2018-12-18 A kind of single layer intersects rope branch structure without inner ring Pending CN109629691A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201811547222.XA CN109629691A (en) 2018-12-18 2018-12-18 A kind of single layer intersects rope branch structure without inner ring
PCT/CN2018/123668 WO2019218680A1 (en) 2018-12-18 2018-12-26 Single-layer inner ring-free intersecting cable support structure

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Application Number Priority Date Filing Date Title
CN201811547222.XA CN109629691A (en) 2018-12-18 2018-12-18 A kind of single layer intersects rope branch structure without inner ring

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Cited By (2)

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CN110748068A (en) * 2019-10-31 2020-02-04 上海谢亿民结构设计事务所有限公司 Steel wire rope net house building roof structure
CN111980265A (en) * 2020-07-13 2020-11-24 东南大学 Bird nest type single-layer space cable net roof structure based on Peng-column closed polygonal star

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Publication number Priority date Publication date Assignee Title
CN110748068A (en) * 2019-10-31 2020-02-04 上海谢亿民结构设计事务所有限公司 Steel wire rope net house building roof structure
CN111980265A (en) * 2020-07-13 2020-11-24 东南大学 Bird nest type single-layer space cable net roof structure based on Peng-column closed polygonal star
CN111980265B (en) * 2020-07-13 2021-09-28 东南大学 Bird nest type single-layer space cable net roof structure based on Peng-column closed polygonal star

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