CN100422468C - Large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure - Google Patents

Large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure Download PDF

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Publication number
CN100422468C
CN100422468C CNB2006102006737A CN200610200673A CN100422468C CN 100422468 C CN100422468 C CN 100422468C CN B2006102006737 A CNB2006102006737 A CN B2006102006737A CN 200610200673 A CN200610200673 A CN 200610200673A CN 100422468 C CN100422468 C CN 100422468C
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China
Prior art keywords
prestressed
span
truss
roof structure
floor type
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Expired - Fee Related
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CNB2006102006737A
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Chinese (zh)
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CN1877037A (en
Inventor
马克俭
郑涛
张华刚
卢亚琴
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Guizhou University
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Guizhou University
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Priority to CNB2006102006737A priority Critical patent/CN100422468C/en
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Application granted granted Critical
Publication of CN100422468C publication Critical patent/CN100422468C/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention discloses a large-span large-column distance quasi-ribbed roof type prestressed steel grid roof structure. The present invention comprises a quadrangular pyramid planar grid (1) and a prestressed spatial pipe truss (2), wherein the prestressed spatial pipe truss (2) is arranged on a support column (3) of a roof; the quadrangular pyramid planar grid (1) is connected to the prestressed spatial pipe truss (2). The present invention mainly solves the super-large-span grid structure roofs with large spans (more than or equal to 80m and less than or equal to 150m) and large column distances (more than or equal to 32m and less than or equal to 60m); the present invention has the characteristics of small steel using level, low construction cost, etc.

Description

The large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure
Technical field:
The present invention relates to a kind of roof system, (huge pillar of 80m≤L≤150m) is apart from (the quasi-ribbed floor type prestressed steel grid roof structure of 32m≤a≤60m) for especially a kind of large span.
Background technology:
In the civil construction project construction, steel concrete rib type superstructure and prestressed concrete rib type superstructure are floor structural forms common in the engineering, but when the planar dimension and the post distance of building all increases by 5~8 times, and during indoor no post, if be insecure with steel concrete rib type superstructure and prestressed concrete rib type superstructure again.At present, (huge pillar of 80m≤L≤150m) is apart from (roof system of 32m≤a≤60m) generally adopt plate steel lattice structure, and must make three layers, but its steel using amount is bigger, reaches 100kg/m for this large span 2More than, construction costs is higher, is not best roof structure form.
Summary of the invention:
The objective of the invention is to: provide a kind of large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure that not only satisfies intensity, the rigidity requirement of structure but also have the characteristics that steel using amount is little, construction costs is low, to overcome the deficiencies in the prior art.
The present invention is achieved in that it comprises the quadrangular pyramid plate net support, on the support column of roof system prestressed space tube truss is housed, and the quadrangular pyramid plate net support is connected on the prestressed space tube truss.
Prestressed space tube truss is the prestressing with bond space tube truss, and it is equipped with load transfer device on the lower edge middle part of pipe truss, and two ends were fixed on the support node that winds up of pipe truss after prestressed cable was positioned at the pipe truss and passes load transfer device.
Load transfer device is made of steel case, the pull bar that is contained in the fixed pulley in the steel case and is fixed on steel case bottom.
Roof system of the present invention adopts prestressed space tube truss at the support column position, between prestressed space tube truss, adopt and just putting the quadrangular pyramid plate net support, form the quasi-ribbed floor type prestressed steel grid structure, satisfying the purpose that structural strength, rigidity and globality condition are issued to the saving steel using amount, reduce construction costs thereby reach.Wherein the mechanical model of quadrangular pyramid plate net support is " a plan sandwich slab ", and the mechanical model of prestressed space tube truss is " intending the sandwich beam ", the space lattice of this pattern is at identical load, under the identical span condition, compare with non-prestressed steel lattice, the every square meter of its steel using amount can reduce by 25~30%, has remarkable economic efficiency.
Description of drawings:
Accompanying drawing 1 is a plane structure schematic diagram of the present invention;
Accompanying drawing 2 is the plane structure schematic diagram of just putting the quadrangular pyramid plate net support of the present invention;
Accompanying drawing 3 is the structural representation of prestressing with bond space tube truss of the present invention;
Accompanying drawing 4 is the A-A sectional view of accompanying drawing 3 (being the web member layer plane and the cable wire plane of arrangement figure of prestressing with bond space tube truss of the present invention);
Accompanying drawing 5 is the structural representation of load transfer device of the present invention.
The specific embodiment:
Embodiments of the invention: as shown in Figure 1, it is by just putting quadrangular pyramid plate net support 1 and prestressed space tube truss 2 constitutes, prestressed space tube truss 2 is installed on the support column 3 of roof system, is just putting the oblique abdomen top that quadrangular pyramid plate net support 1 is connected prestressed space tube truss 2.Wherein prestressed space tube truss 2 adopts the prestressing with bond space tube truss, its structure is such: it is equipped with load transfer device 4 on the lower edge middle part of pipe truss, prestressed cable 5 is positioned at the pipe truss and passes two ends, load transfer device 4 back and is fixed on the support node that winds up of pipe truss, and wherein load transfer device 4 is made of steel case 6, the pull bar 8 that is contained in the interior fixed pulley 7 of steel case 6 and is fixed on steel case 6 bottoms.Prestressed space tube truss 2 in above-mentioned also can be according to span, and intercolumniation is selected " prestressed space tube truss structure in the lower chord tube " or " short-brace rod type expanding-chord truss structure " flexibly for use.
The present invention mainly solves large span (80m≤L≤150m), huge pillar is apart from (the super-span steel network roof system of 32m≤a≤60m), be beam with prestressed space tube truss 2 equivalences in above-mentioned, to just put 1 equivalence of quadrangular pyramid plate net support and be plate, promptly form to intend " rib type superstructure " formula prestressed steel grid roof, for the large-scale roof system of large span public building, industrial construction provides a kind of novel roof structure form.

Claims (3)

1. large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure, it comprises quadrangular pyramid plate net support (1), it is characterized in that: on the support column (3) of roof system prestressed space tube truss (2) is housed, quadrangular pyramid plate net support (1) is connected on the prestressed space tube truss (2).
2. large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure according to claim 1, it is characterized in that: prestressed space tube truss (2) is the prestressing with bond space tube truss, it is equipped with load transfer device (4) on the lower edge middle part of pipe truss, prestressed cable (5) is positioned at the pipe truss and passes two ends, load transfer device (4) back and is fixed on the support node that winds up of pipe truss.
3. large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure according to claim 2 is characterized in that: load transfer device (4) by steel case (6), be contained in the fixed pulley (7) in the steel case (6) and be fixed on pull bar (8) formation of steel case (6) bottom.
CNB2006102006737A 2006-07-07 2006-07-07 Large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure Expired - Fee Related CN100422468C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006102006737A CN100422468C (en) 2006-07-07 2006-07-07 Large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006102006737A CN100422468C (en) 2006-07-07 2006-07-07 Large-span large-column distance quasi-ribbed floor type prestressed steel grid roof structure

Publications (2)

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CN1877037A CN1877037A (en) 2006-12-13
CN100422468C true CN100422468C (en) 2008-10-01

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942883B (en) * 2009-07-09 2013-12-25 .贵州大学 Roof with rectangular plane, super-long span and prestressed space tube truss structure and manufacturing method
CN102235031B (en) * 2010-04-26 2012-10-03 湖南大学 Super-large span variable section double-layer and three-layer prestressed rib beam type net rack and making method
CN102235030B (en) * 2010-04-26 2012-12-05 湖南大学 Extra-large-span cross-section-variable pre-stressed normally placed evacuating quadrangular pyramid space grid and manufacturing method thereof
CN107795059A (en) * 2017-11-22 2018-03-13 中冶京诚工程技术有限公司 A kind of ribbing grid structure system
CN111877828A (en) * 2020-07-24 2020-11-03 中国航空国际建设投资有限公司 Aircraft hangar and roof structure thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86104967A (en) * 1985-08-10 1987-02-11 清水建设株式会社 Trussed girder and the roof trusses and the method that adopt this beam to build
CN1043182A (en) * 1986-03-13 1990-06-20 斯特拉奇工业有限公司 A kind of building structure of using truss construction
CN1393607A (en) * 2001-07-03 2003-01-29 浙江大学 Method for integrally lifting reticulated shell 'mechanism-structure' of column surface of jacking construction method
CN1789636A (en) * 2005-12-22 2006-06-21 高维成 Pulley type truss-string arc-scaffolding combined structural system
CN2923870Y (en) * 2006-07-07 2007-07-18 贵州大学 Large-span large-pillar-distance quasi-rib type building-cover type prestress steel-grid roofing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86104967A (en) * 1985-08-10 1987-02-11 清水建设株式会社 Trussed girder and the roof trusses and the method that adopt this beam to build
CN1043182A (en) * 1986-03-13 1990-06-20 斯特拉奇工业有限公司 A kind of building structure of using truss construction
CN1393607A (en) * 2001-07-03 2003-01-29 浙江大学 Method for integrally lifting reticulated shell 'mechanism-structure' of column surface of jacking construction method
CN1789636A (en) * 2005-12-22 2006-06-21 高维成 Pulley type truss-string arc-scaffolding combined structural system
CN2923870Y (en) * 2006-07-07 2007-07-18 贵州大学 Large-span large-pillar-distance quasi-rib type building-cover type prestress steel-grid roofing

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