CN105839845A - Space truss girder - Google Patents
Space truss girder Download PDFInfo
- Publication number
- CN105839845A CN105839845A CN201610199021.XA CN201610199021A CN105839845A CN 105839845 A CN105839845 A CN 105839845A CN 201610199021 A CN201610199021 A CN 201610199021A CN 105839845 A CN105839845 A CN 105839845A
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- CN
- China
- Prior art keywords
- diagonal rib
- diagonal
- several
- upper wing
- ribs
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
Abstract
The invention provides a space truss girder, comprising an upper wing rod and a lower wing plate, wherein the upper wing rod is parallel to the lower wing plate; a plurality of first diagonal ribs, a plurality of second diagonal ribs, a plurality of third diagonal ribs and a plurality of fourth ribs are arranged between and connected with the upper wing rod and the lower wing plate; the lengths of all the diagonal ribs are equal; the plurality of first diagonal ribs and the plurality of second diagonal ribs are located at one side of the width direction of the upper wing rod; the plurality of third diagonal ribs and the plurality of fourth ribs are located at the other side of the width direction of the upper wing rod; first included angles alpha 1 are arranged between the first diagonal ribs and the second diagonal ribs; third included angles alpha 3 are arranged between the third diagonal ribs and the fourth diagonal ribs; and the first included angles alpha 1 and third included angles alpha 3 are acute angles. The torsional capacity, shear capacity and flexural capacity of the space truss girder provided by the invention are 40-60%, 20-30% and 40-60% higher compared with the prior art; in usage of space truss girder, additional arrangement of ribs with torsional capacity or bracing frames, or any other structures are not needed; and the space truss girder is simple in engineering design and construction and greatly reduces cost.
Description
Technical field
The present invention relates to architectural engineering component, be a kind of space truss beam.
Background technology
In architectural engineering in widely used steel construction, H profile steel is the principal mode of spandrel girder, requires to increase floor height, perforate on web, increase ribbed stiffener with welding, arrange bracing frame etc. generally according to using.Prolonged application finds, the deficiency of this H profile steel spandrel girder is: the anti-flexion capabilities of web of H profile steel is relatively low, limited by height and thickness ratio, when needing bigger shear-carrying capacity, anti-bending bearing capacity or requirement to have higher stability, web thickness must be increased, but, the result increasing web thickness is that steel using amount strengthens, weight is significantly increased, particularly local bearing capacity is unable to reach identical requirement, needing other parts to coordinate in engineer applied, on web, perforate easily reduces the bearing capacity of web for the method for drawing-in wire, and increases construction cost；When anchoring with concrete, the placement location of reinforcing bar needs strict design, designs and constructs the most high.
Summary of the invention
It is an object of the present invention to provide a kind of group space truss beam, it can solve the problem that the deficiencies in the prior art.
The present invention is for achieving the above object, it is achieved through the following technical solutions: a kind of space truss beam, including upper wing bar and lower wing plate, upper wing bar is parallel with lower wing plate, several first diagonal rib, several second diagonal rib, several 3rd diagonal rib and several 4th diagonal rib is connected between upper wing bar and lower wing plate, each diagonal rib length is equal, several first diagonal ribs and several second tiltedly help the side being positioned at wing bar width, several 3rd tiltedly helps and is positioned at the opposite side of upper wing bar width with several 4th diagonal ribs, arranges the first angle α between the first diagonal rib and the second diagonal rib1, the 3rd tiltedly helps and arranges the 3rd angle α with the 4th diagonal rib3First angle α1With the 3rd angle α3Being acute angle, several first diagonal ribs, several second diagonal rib, several 3rd diagonal rib and several 4th diagonal rib are parallel to each other in respective plane, and the width that the first diagonal rib and the second diagonal rib are connected with upper wing bar is L1, L1Width be the width summation of the first diagonal rib and the second diagonal rib, the width that the 3rd diagonal rib and the 4th diagonal rib are connected with upper wing bar is L3, L3Width be the 3rd diagonal rib and the width summation of the 4th diagonal rib.First angle α1With the 3rd angle α3It is 30 °-75 °.The middle part of upper wing bar arranges cavity, fills mortar or concrete in cavity.The cross section of upper wing bar is c-type.The cross section of upper wing bar is concave groove type.Upper wing bar cross section be square type.
The invention has the advantages that: it has fabulous stability in the large, the most fabulous local stability, each section of bearing capacity making girder truss is the most identical, when engineer applied, it is not necessary to increase other parts, girder truss can directly be used alone, reduce construction costs, and improve construction quality.Girder truss of the present invention is under web thickness same as the prior art, bearing capacity height 20%-40%, owing to the thickness of diagonal rib is less, and fills the material such as mortar or concrete in upper wing bar and lower wing bar, steel using amount 20%-28% can be reduced while increasing the bearing capacity of girder truss.Girder truss Torsion bearing capacity 40%-60% higher than prior art of the present invention, shear-carrying capacity height 20%-30%, anti-bending bearing capacity height 40%-60%, in use middle need not arrange the rib increasing Torsion bearing capacity, also without arranging any structures such as bracing frame, making engineering design and construction simple, cost is greatly reduced.
Accompanying drawing explanation
Accompanying drawing 1 is present configuration schematic diagram；Accompanying drawing 2 is the plan structure schematic diagram of accompanying drawing 1；Accompanying drawing 3 is the right TV structure schematic diagram of accompanying drawing 1；Accompanying drawing 4 is that in accompanying drawing 1, one of A-A section structure for amplifying embodiment fills mortar schematic diagram；Accompanying drawing 5 is that in accompanying drawing 1, one of face, A-A portion structure for amplifying embodiment is not filled by mortar schematic diagram；Accompanying drawing 6 is the two of A-A section structure for amplifying embodiment to be not filled by mortar schematic diagram in accompanying drawing 1；Accompanying drawing 7 is two filling mortar schematic diagrams of face, A-A portion structure for amplifying embodiment in accompanying drawing 1；Accompanying drawing 8 is the three of face, A-A portion structure for amplifying embodiment to be not filled by mortar schematic diagram in accompanying drawing 1；Accompanying drawing 9 is three filling mortar schematic diagrams of face, A-A portion structure for amplifying embodiment in accompanying drawing 1；Accompanying drawing 10 is the backsight structural representation of Fig. 1.
Detailed description of the invention
The present invention will be further described for comparison accompanying drawing.
A kind of space truss beam of the present invention, including upper wing bar 1 and lower wing plate 3, upper wing bar 1 is parallel with lower wing plate 3, several first diagonal rib 2, several second diagonal rib 4, several 3rd diagonal rib 5 and several 4th diagonal rib 6 is connected between upper wing bar 1 and lower wing plate 3, each diagonal rib length is equal, several first diagonal ribs 2 and several second tiltedly help 4 sides being positioned at wing bar 1 width, several 3rd tiltedly help 5 and several 4th diagonal rib 6 be positioned at the opposite side of wing bar 1 width, between the first diagonal rib 2 and the second diagonal rib 4, the first angle α is set1, the 3rd tiltedly help 5 and the 4th diagonal rib 6 the 3rd angle α is set3First angle α1With the 3rd angle α3Being acute angle, several first diagonal ribs 2, several second diagonal rib 4, several 3rd diagonal rib 5 and several 4th diagonal rib 6 are parallel to each other in respective plane, and the width that the first diagonal rib 2 and the second diagonal rib 4 are connected with upper wing bar 1 is L1, L1Width be the first diagonal rib 2 and width summation of the second diagonal rib 4, the width that the 3rd diagonal rib 5 and the 4th diagonal rib 6 are connected with upper wing bar 1 is L3, L3Width be the 3rd diagonal rib 5 and the width summation of the 4th diagonal rib 6.Said structure of the present invention can solve the problem that prior art is not enough.
First diagonal rib the 2, second diagonal rib the 4, the 3rd diagonal rib 5 of the present invention and the 4th diagonal rib 6 are flat steel plate.When tiltedly helping employing steel plate to make, the stability in the large of girder truss can be increased further, and there is the readily accessible standardized advantage of manufacturing process.
First angle α of the present invention1With the 3rd angle α3It is 30 °-75 °.This preferred angle can make girder truss in the case of reaching stability in the large requirement, the local stability of girder truss is more preferable, described local stability refers to that at least one the first tiltedly help 2 and second tiltedly to help 4 to combine, and according to requirements cuts off the situation of use to meet engine request frequent appearance in construction.
Being respectively provided with cavity in the middle part of upper wing bar 1 of the present invention, fill mortar or concrete in cavity, this is the scheme that upper wing bar 1 of the present invention is preferential, and it can alleviate own wt, and can increase its intensity, also can reduce manufacturing cost.
The cross section of upper wing bar 1 of the present invention is square type, it is also possible to be that the cross section of upper wing bar 1 is c-type, or, the cross section of upper wing bar 1 is concave groove type.Above-mentioned variously-shaped equal can meet the present invention and use requirement, to reach to be easy to preferably be connected with each diagonal rib, and have and be prone to processing, reach the requirement that bearing capacity is high.
Claims (7)
1. a space truss beam, it is characterized in that: include wing bar (1) and lower wing plate (3), upper wing bar (1) is parallel with lower wing plate (3), several first diagonal rib (2) is connected between upper wing bar (1) and lower wing plate (3), several second diagonal ribs (4), several 3rd diagonal ribs (5) and several 4th diagonal rib (6), each diagonal rib length is equal, several first diagonal ribs (2) and several second tiltedly help the side that (4) are positioned at wing bar (1) width, several 3rd tiltedly helps (5) and several 4th diagonal rib (6) to be positioned at the opposite side of wing bar (1) width, between the first diagonal rib (2) and the second diagonal rib (4), the first angle α is set1, the 3rd tiltedly helps (5) and the 4th diagonal rib (6) to arrange the 3rd angle α3First angle α1With the 3rd angle α3It is acute angle, several first diagonal ribs (2), several second diagonal rib (4), several 3rd diagonal rib (5) and several 4th diagonal rib (6) are parallel to each other in respective plane, and the width that the first diagonal rib (2) and the second diagonal rib (4) are connected with upper wing bar (1) is L1, L1Width be the width summation of the first diagonal rib (2) and the second diagonal rib (4), the width that the 3rd diagonal rib (5) and the 4th diagonal rib (6) are connected with upper wing bar (1) is L3, L3Width be the 3rd diagonal rib (5) and the width summation of the 4th diagonal rib (6).
A kind of space truss beam the most according to claim 1, it is characterised in that: the first diagonal rib (2) the second diagonal rib (4), the 3rd diagonal rib (5) and the 4th diagonal rib (6) are flat steel plate.
A kind of space truss beam the most according to claim 1, it is characterised in that: the first angle α1With the 3rd angle α3It is 30 °-75 °.
A kind of space truss beam the most according to claim 1, it is characterised in that: the middle part of upper wing bar (1) arranges cavity, fills mortar or concrete in cavity.
A kind of space truss beam the most according to claim 1, it is characterised in that: the cross section of upper wing bar (1) is c-type.
A kind of space truss beam the most according to claim 1, it is characterised in that: the cross section of upper wing bar (1) is concave groove type.
A kind of space truss beam the most according to claim 1, it is characterised in that: upper wing bar (1) cross section be square type.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015208526458 | 2015-10-30 | ||
| CN201520852645 | 2015-10-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105839845A true CN105839845A (en) | 2016-08-10 |
| CN105839845B CN105839845B (en) | 2018-02-09 |
Family
ID=56596394
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620265493.6U Active CN205558033U (en) | 2015-10-30 | 2016-04-01 | Space truss roof beam |
| CN201610199021.XA Active CN105839845B (en) | 2015-10-30 | 2016-04-01 | A kind of space truss beam |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620265493.6U Active CN205558033U (en) | 2015-10-30 | 2016-04-01 | Space truss roof beam |
Country Status (1)
| Country | Link |
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| CN (2) | CN205558033U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205558033U (en) * | 2015-10-30 | 2016-09-07 | 张波 | Space truss roof beam |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0978764A (en) * | 1995-09-18 | 1997-03-25 | Fujita Corp | Built-up reinforcement truss and manufacture thereof |
| US20030014935A1 (en) * | 2001-07-18 | 2003-01-23 | Bodnar Ernest R. | Sheet metal stud and composite construction panel and method |
| CN101230659A (en) * | 2007-01-28 | 2008-07-30 | 邱则有 | Force-bearing type underplate component |
| CN201671229U (en) * | 2010-05-11 | 2010-12-15 | 汤意 | Shear connector |
| CN103276849A (en) * | 2013-06-09 | 2013-09-04 | 中冶建筑研究总院有限公司 | Castellated beam, concrete flitch beam and design method |
| CN103437501A (en) * | 2013-09-16 | 2013-12-11 | 南京工业大学 | C-type steel-concrete combined corrugated web composite beam with H-shaped cross section |
| CN205558033U (en) * | 2015-10-30 | 2016-09-07 | 张波 | Space truss roof beam |
-
2016
- 2016-04-01 CN CN201620265493.6U patent/CN205558033U/en active Active
- 2016-04-01 CN CN201610199021.XA patent/CN105839845B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0978764A (en) * | 1995-09-18 | 1997-03-25 | Fujita Corp | Built-up reinforcement truss and manufacture thereof |
| US20030014935A1 (en) * | 2001-07-18 | 2003-01-23 | Bodnar Ernest R. | Sheet metal stud and composite construction panel and method |
| CN101230659A (en) * | 2007-01-28 | 2008-07-30 | 邱则有 | Force-bearing type underplate component |
| CN201671229U (en) * | 2010-05-11 | 2010-12-15 | 汤意 | Shear connector |
| CN103276849A (en) * | 2013-06-09 | 2013-09-04 | 中冶建筑研究总院有限公司 | Castellated beam, concrete flitch beam and design method |
| CN103437501A (en) * | 2013-09-16 | 2013-12-11 | 南京工业大学 | C-type steel-concrete combined corrugated web composite beam with H-shaped cross section |
| CN205558033U (en) * | 2015-10-30 | 2016-09-07 | 张波 | Space truss roof beam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205558033U (en) | 2016-09-07 |
| CN105839845B (en) | 2018-02-09 |
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