CN105952049A - Dual-strut cable dome structure - Google Patents

Dual-strut cable dome structure Download PDF

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Publication number
CN105952049A
CN105952049A CN201610306355.2A CN201610306355A CN105952049A CN 105952049 A CN105952049 A CN 105952049A CN 201610306355 A CN201610306355 A CN 201610306355A CN 105952049 A CN105952049 A CN 105952049A
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CN
China
Prior art keywords
strut
junction point
dome structure
cable dome
pull
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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
CN201610306355.2A
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Chinese (zh)
Inventor
张爱林
孙超
白羽
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Beijing University of Technology
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Beijing University of Technology
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Publication date
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Priority to CN201610306355.2A priority Critical patent/CN105952049A/en
Publication of CN105952049A publication Critical patent/CN105952049A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • 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
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B1/1903Connecting nodes specially adapted therefor
    • E04B1/1906Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
    • 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
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19Three-dimensional framework structures
    • E04B2001/1996Tensile-integrity structures, i.e. structures comprising compression struts connected through flexible tension members, e.g. cables

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

A dual-strut cable dome structure belongs to the civil engineering space structure technical field, and mainly comprises spine cables, stay cables, continuous struts, and loop cables; the struts are continuously connected end to end, i.e., the projection and the loop cables are superposed, and all rod pieces except the central strut are connected through a ball-joint; the tops of the struts and stay cable are respectively hinged to the spine cables; the stay cable connects tops and bottoms of adjacent loop struts; the loop cables connect the bottoms of continuous struts of the same loop, and are closed in a loop; pre-stress tension is carried out so as to build pre-stress in the spine cables, loop cables, stay cables and struts, thus forming a full tension structure. Compared with a conventional cable dome structure, the dual-strut cable dome structure is light in size, large in integral rigidity, and less in stab cable number; the dual-strut cable dome structure is good in force bearing performance, convenient in construction, and good in integral economic benefit; the dual-strut cable dome structure is suitable for large span building structure roof, and is the pre-stress space structure form with wide development prospect.

Description

A kind of pull-off pole cable dome structure
Technical field
The invention discloses a kind of novel full tension structure, particularly relate to pull-off pole cable dome structure, belong to the sky of civil engineering Between technical field of structures.
Background technology
In recent years, along with economic development, civilization and progress, social need proposes new challenge to Structural Engineering.Due to production, body Educate, the public area such as exhibition to large span, the seeking development of large space, engineers the most constantly breaks through, it is proposed that various New structure.New structure form prestressing technique combined with steel structure system and be derived, such as: beam string, Rope net, slant-pull structure, rope arch, prestressed girder, string prop up vault item, Cable dome etc., have adapted to these demands.Prestress steel is tied Structure can create the new system of reasonable stress, beautiful design, not only increases structural-load-carrying capacity, Reducing distortion, reaches simultaneously To saving steel, the economic effect of reduction cost.These advantages make prestressed steel structure have good stress performance and economy Benefit, is worth further investigation and engineer applied to be promoted, for the economic construction service of China.
In the version of numerous prestressed steel structures, cable dome structure is that a kind of structure efficiency deeply paid close attention to both at home and abroad is high Space structure, have that moulding is slim and graceful, power transmission is clear and definite, the feature of full tension force, self-balancing.Its design philosophy comes from building great master The concept that the stretch-draw that Fuller proposes is overall.Last century early eighties, U.S.'s Structural Engineering Geiger is on the overall basis of stretch-draw On, construct a kind of prestressed spatial structure system being mainly made up of, i.e. Geiger notochord, oblique cord, strop, depression bar etc. Type cable dome structure, and by Cable dome first Application in 1988 Seoul Olympic Games gymnasium and fencing hall.Due to the Olympic Games Huge demonstration effect and the plurality of advantages of Cable dome self so that it is closely tie with gymnasium building in road for development from now on Close, become a kind of important form of venue roof structure.Afterwards, Chinese scholars cable dome structure has been carried out some improvement, Innovation.
Summary of the invention
Technical problem: the present invention solve tradition cable dome structure exist integral rigidity less, flexible cable component is many and difficulty of constructing Spend big shortcoming, it is proposed that a kind of novel full tension structure system pull-off pole Cable dome.
A kind of pull-off pole cable dome structure, it is characterised in that main by notochord (1), oblique cord (2), strut (4), strop (3) Four kinds of components are constituted;Strut (4) continuously coupled layout on hoop, and the folding shape connection of in the vertical direction adjacent struts, on Folds junction point and lower folds junction point space crossings;Folds junction point and oblique cord (2) upper end, notochord (1) on every central shoring bar Connecting, under every central shoring bar, folds junction point is connected with oblique cord (2) lower end, strop (3), the projection of the continuous strut of every ring and ring Suo Chonghe, strop (3) hoop closes;Internal ring on any one folds junction point folds upper with adjacent outer shroud two respectively connect Point connects with notochord (1) respectively, and the upper folds junction point of above-mentioned outer shroud two is adjacent, and the most respectively with the upper folds of corresponding internal ring Junction point is closest;The upper folds junction point employing list that the lower folds junction point of any one of internal ring is all nearest with on adjacent outer shroud Root oblique cord (2) connects.
Above-mentioned pull-off pole cable dome structure center is vertical strut, company between other all components in addition to center vertical strut two ends Connect and be all attached by ball node (5).Using ball node to be articulated and connected further, it is the table at entity ball that ball node is hinged Having otic placode with holes, entity ball and otic placode on face is one.
Described center vertical strut absolute altitude is the highest, and continuous strut elevation of top hoop is identical, is radially successively decreased to outer shroud by internal ring.
The internal ring of the present invention is relative with outer shroud, and the pull-off pole cable dome structure of the present invention has multi-ring strut (4).
Pull-off pole cable dome structure, lower folds pin joint and the upper folds pin joint sum of every central shoring bar are equal;From center to outer Same radial direction, upper folds pin joint and lower folds pin joint space crossings.
Described strut uses seamless circular steel pipe.Described notochord, oblique cord, strop are prestressed cable.
Adjacent strut (4) end points up and down only connects an oblique cord (2), and the quantity of its oblique cord is significantly compared with tradition Cable dome Reduce.
Technical scheme: this new structure is notochord topological form in connection square, strut is being arranged continuously, i.e. projection overlaps with strop. In addition to central strut, all components are attached by ball node, and the upper end of strut and oblique cord is all connected with notochord, and oblique cord is even Connecing the top and bottom of adjacent ring strut, strop connects the lower end with the continuous strut of ring, and hoop closed arrangement.
Beneficial effect: compared with tradition cable dome structure, pull-off pole Cable dome has following advantage.
(1), compared with the hound strut configuration discontinuous with tension integral structure arranged continuously, there is more preferable stress Energy;And in work progress, using triangular mesh contact between the hoop component such as strut and strop, geometrical stability is more preferable, It is easy to component and location is installed.
(2) in addition to central strut, all rod members use ball node to be attached, it is possible to realize spacial multi-angle connection, otic placode The most crowded, have the advantages that power transmission is succinct, form is attractive in appearance.
(3) quantity of its oblique cord is the half of tradition connection square cable dome structure, applies whole system pre-by stretch-draw oblique cord During stress, it is only necessary to less scaffold and tensioning equipment, it is possible to significantly reduce stretching construction workload.
Pull-off pole Cable dome had both inherited the advantage of tradition cable dome structure, compensate for again the deficiency that tradition Cable dome exists, it is easy to Construction and installation and stretch-draw forming, overall economic efficiency is good.This version is highly suitable for the roof system of long span building, as The improvement project of cable dome structure, it is adaptable to sports building, Exhibition Architecture, is that a kind of tool prestressing force with broad prospects for development is big Span spatial structures form.
Accompanying drawing explanation
Fig. 1 is pull-off pole cable dome structure three-dimensional shaft mapping;
Fig. 2 is pull-off pole cable dome structure plane graph;
Fig. 3 is pull-off pole cable dome structure 1/n structural representation, and that wherein embodies is only position relationship, does not draw ball node It is hinged;
Fig. 4 is pull-off pole cable dome structure strut upper end joint structure schematic diagram.
In figure: 1 notochord, 2 oblique cords, 3 strops, 4 struts, 5 ball nodes are hinged.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described, but the present invention is not limited to following example.
Pull-off pole cable dome structure designs
(1) geometric topo-relationship of pull-off pole cable dome structure, and support restraint condition are first determined;
(2) carry out structure and look for shape and force finding;
(3) structure position shape, prestressing force and the material of component and specification are primarily determined that;
(4) structural ultimate bearing capacity analysis, serviceability limit state analysis and other necessary analysis are carried out;
(5) adjustment and parameters optimization, meets structure and uses requirement.
Embodiment 1
A kind of pull-off pole cable dome structure, is shown in Fig. 1-3, and in addition to central strut, all rod members are attached by ball node 5, support Bar 4 is arranged on hoop continuously, i.e. projection overlaps with strop 3.The upper end of strut 4 and oblique cord 2 is all articulated and connected with notochord 1, Oblique cord 2 connects the upper folds pin joint of adjacent ring strut 4 and lower folds pin joint, and strop 3 connects the continuous strut of same ring 4 times End, and hoop closed arrangement.Outmost turns notochord 1, oblique cord 2 are anchored with the ball node bearing of side ring beam.
Described strut 4 uses high strength seamless round steel pipe.Described central strut absolute altitude is the highest, continuous strut elevation of top Hoop is identical, radially successively decreases from inside to outside.Described notochord 1, oblique cord 2, strop 3 are prestressed cable.Side ring beam is for being subject to Flanging ring beam, available substructure capital collar tie beam, generally reinforced beam, rigidity is big, Compressive Performance good, construction party Just.During drag-line construction, first have to determine the length under its zero stress state, process rope head, anchorage, in practice of construction, draw The structural initial pre stress value of rope and design load are it is possible to there is bigger gap, so strut can be designed to adjustable in length continuously Component, oblique cord, strop use scalable rope, connect and easy to adjust.After the component assembling of structure, structure is still in nothing Stress state, when remaining fraction cable stretching puts in place, structure formation also has rigidity, can bear external loads effect.

Claims (6)

1. a pull-off pole cable dome structure, it is characterised in that mainly by notochord (1), oblique cord (2), strut (4), (3) four kinds of components of strop are constituted;Strut (4) continuously coupled layout on hoop, and in the vertical direction Adjacent struts folding shape connects, upper folds junction point and lower folds junction point space crossings;Folds on every central shoring bar Junction point is connected with oblique cord (2) upper end, notochord (1), folds junction point and oblique cord (2) under every central shoring bar Lower end, strop (3) connect, and the projection of the continuous strut of every ring overlaps with strop, and strop (3) hoop closes; Internal ring on any one folds junction point folds junction point upper with adjacent outer shroud two respectively respectively with notochord (1) Connecting, the upper folds junction point of above-mentioned outer shroud two is adjacent, and the most respectively with the upper folds junction point of corresponding internal ring Closest;The upper folds junction point that the lower folds junction point of any one of internal ring is all nearest with on adjacent outer shroud Single oblique cord (2) is used to connect.
2. according to a kind of pull-off pole cable dome structure of claim 1, it is characterised in that above-mentioned pull-off pole Cable dome Structure centre is vertical strut, and in addition to center vertical strut two ends, the connection between other all components is all passed through Ball node (5) is attached.
3. according to a kind of pull-off pole cable dome structure of claim 1, it is characterised in that pull-off pole cable dome structure, Lower folds junction point and the upper folds junction point sum of every central shoring bar are equal;From center to outer same radial direction side To, upper folds junction point and lower folds junction point space crossings.
4. according to a kind of pull-off pole cable dome structure of claim 1, it is characterised in that described center vertical support Bar absolute altitude is the highest, and continuous strut elevation of top hoop is identical, is radially successively decreased to outer shroud by internal ring.
5. according to a kind of pull-off pole cable dome structure of claim 1, it is characterised in that described strut uses nothing Seam round steel pipe.
6. according to a kind of pull-off pole cable dome structure of claim 1, it is characterised in that described notochord, oblique cord, Strop is prestressed cable.
CN201610306355.2A 2016-05-10 2016-05-10 Dual-strut cable dome structure Pending CN105952049A (en)

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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162347A (en) * 2018-10-12 2019-01-08 北京科技大学 A kind of method that modularization builds tension integral structure
CN109440994A (en) * 2018-12-26 2019-03-08 同济大学建筑设计研究院(集团)有限公司 A kind of annular rope support construction and suspen-shell structure
CN109826355A (en) * 2019-01-17 2019-05-31 上海海事大学 It is a kind of to rotate imitative S-shaped curved surface Cable dome
CN110805191A (en) * 2019-12-06 2020-02-18 北京建筑大学 Alternate composite cable dome structure and implementation method thereof
CN111088867A (en) * 2019-07-23 2020-05-01 北京工业大学 Large-span assembled prestressing force ridge pole ring stay cable dome structural system
CN111441476A (en) * 2020-04-20 2020-07-24 华南理工大学 Composite grid cable dome structure and construction method thereof
CN113216492A (en) * 2021-04-13 2021-08-06 浙江工业大学 Deployable saddle-shaped cable net structure based on sliding cable
CN113779678A (en) * 2021-09-14 2021-12-10 中南建筑设计院股份有限公司 Rib-ring-shaped cable dome structure parametric modeling method based on Grasshopper
CN114856068A (en) * 2022-04-11 2022-08-05 浙江大学 Cable dome structure adopting continuous ridge cables

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757650A (en) * 1986-09-30 1988-07-19 Berger Horst L Cable dome system with main cables oriented along chords
US5146719A (en) * 1990-02-16 1992-09-15 Masao Saito Space tension chord arch dome reinforced with tension members and method for building same
JPH06101274A (en) * 1992-09-17 1994-04-12 Kumagai Gumi Co Ltd Method of constructing roof of cable dome
CN101029521A (en) * 2007-03-23 2007-09-05 北京工业大学 V-shaped radial string branch mesh dome
CN101649661A (en) * 2009-09-03 2010-02-17 浙江大学 Layer-by-layer double-ring sunflower-shaped cable dome structure and construction molding method thereof
CN101864806A (en) * 2010-06-04 2010-10-20 北京工业大学 Stiffness-supported dome structure
CN105804247A (en) * 2016-04-01 2016-07-27 北京工业大学 Cable dome structure with ridge rods and annular support rods

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4757650A (en) * 1986-09-30 1988-07-19 Berger Horst L Cable dome system with main cables oriented along chords
US5146719A (en) * 1990-02-16 1992-09-15 Masao Saito Space tension chord arch dome reinforced with tension members and method for building same
JPH06101274A (en) * 1992-09-17 1994-04-12 Kumagai Gumi Co Ltd Method of constructing roof of cable dome
CN101029521A (en) * 2007-03-23 2007-09-05 北京工业大学 V-shaped radial string branch mesh dome
CN101649661A (en) * 2009-09-03 2010-02-17 浙江大学 Layer-by-layer double-ring sunflower-shaped cable dome structure and construction molding method thereof
CN101864806A (en) * 2010-06-04 2010-10-20 北京工业大学 Stiffness-supported dome structure
CN105804247A (en) * 2016-04-01 2016-07-27 北京工业大学 Cable dome structure with ridge rods and annular support rods

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162347B (en) * 2018-10-12 2023-09-26 北京科技大学 Method for modularly constructing tension integral structure
CN109162347A (en) * 2018-10-12 2019-01-08 北京科技大学 A kind of method that modularization builds tension integral structure
CN109440994A (en) * 2018-12-26 2019-03-08 同济大学建筑设计研究院(集团)有限公司 A kind of annular rope support construction and suspen-shell structure
CN109826355A (en) * 2019-01-17 2019-05-31 上海海事大学 It is a kind of to rotate imitative S-shaped curved surface Cable dome
CN109826355B (en) * 2019-01-17 2023-10-31 上海海事大学 Rotary S-shaped curved cable dome
CN111088867A (en) * 2019-07-23 2020-05-01 北京工业大学 Large-span assembled prestressing force ridge pole ring stay cable dome structural system
CN110805191A (en) * 2019-12-06 2020-02-18 北京建筑大学 Alternate composite cable dome structure and implementation method thereof
CN111441476A (en) * 2020-04-20 2020-07-24 华南理工大学 Composite grid cable dome structure and construction method thereof
CN113216492A (en) * 2021-04-13 2021-08-06 浙江工业大学 Deployable saddle-shaped cable net structure based on sliding cable
CN113779678A (en) * 2021-09-14 2021-12-10 中南建筑设计院股份有限公司 Rib-ring-shaped cable dome structure parametric modeling method based on Grasshopper
CN113779678B (en) * 2021-09-14 2023-12-12 中南建筑设计院股份有限公司 Grasshopper-based rib ring type cable dome structure parameterized modeling method
CN114856068B (en) * 2022-04-11 2023-02-03 浙江大学 Cable dome structure adopting continuous ridge cables
CN114856068A (en) * 2022-04-11 2022-08-05 浙江大学 Cable dome structure adopting continuous ridge cables

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