CN201214854Y

CN201214854Y - Crossing web member open frame girder

Info

Publication number: CN201214854Y
Application number: CNU2008203010147U
Authority: CN
Inventors: 肖建春; 曹新明; 刘金芳; 柏川; 胡滨; 梁弢
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2008-06-04
Filing date: 2008-06-04
Publication date: 2009-04-01
Anticipated expiration: 2018-06-04

Abstract

The utility model discloses an empty truss girder of a crossed web member, the structure of which includes a first quarter (1), a lower quarter (2) and a web member (3) which is vertically supported between the lower quarter (2) and the web member (3) in a certain distance. The web member (3) is of an X shape. The empty truss girder of a crossed web member changes the single vertical web member of the traditional empty truss girder into the X-shaped crossed web member and has better rigidity and economic performance.

Description

Intersection web member open frame girder

Technical field

The utility model relates to a kind of girder truss form of structure that is applied to civil engineering, especially a kind of intersection web member open frame girder.

Background technology

Steel concrete solid web girder deadweight in the civil works is bigger, generally is applied in the roof system and floor structure of medium and small span.When span is bigger, the belly of solid web girder suitably can be hollowed out for alleviating dead load, thereby form open frame girder or rigid-framed structure.Open frame girder is that Belgian Arthur Vierendeel proposed in 1896, and it adopts single perpendicular web member usually, is rigid joint between web member and the chord member.Because under vertical uniform load q, the moment distribution rule of open frame girder is near more near bearing, web member Moment at End big more (Moment at End of web member is contiguous chord member Moment at End sum), and the rigidity of single perpendicular web member is relatively poor, the rigidity that causes whole open frame girder is not very desirable, often need to arrange the web member of comparatively dense, cost is higher.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of intersection web member open frame girder.The good rigidly of this girder truss structure and can reduce the quantity of web member is saved cost.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows: intersection web member open frame girder.It comprises wind up, lower edge and keep at a certain distance away vertical support wind up, web member between the lower edge, described web member is an X-shaped.

In the above-mentioned intersection web member open frame girder, wind up, lower edge and web member be to adopt steel concrete to make, or adopt steel, stainless steel, aluminium alloys, timber, composite material etc. to make.

In the aforesaid intersection web member open frame girder, the bar cross section of web member is rectangle, square or circular, H shape, I-shaped, C shape, shape such as Z-shaped, L shaped.

In the aforesaid intersection web member open frame girder, the web member of X-shaped is to adopt the steel concrete integral cast-in-situ to be shaped, or becomes member, is shaped by assembled on site in factory process.

The utility model has proposed a kind of novel open frame girder form of structure based on the moment of flexure regularity of distribution of open frame girder.Compared with prior art, the utility model erects the intersection web member that web member changes X-shaped into the list of traditional open frame girder, because the web member middle part moment of flexure of intersection web member is less, not only can reduce web member quantity, reduces cost, and have better economy, and rigidity is better.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a perspective view of the present utility model;

The specific embodiment

Embodiment of the present utility model: shown in accompanying drawing 1,2.It comprises that Reinforced Concrete Materials makes winds up 1, lower edge 2 and web member 3.Web member 3 is an X-shaped, and keep at a certain distance away vertical support wind up 1 and lower edge 2 between.The bar cross section shape of web member 3 is rectangles, or square, circular, H shape, I-shaped, C shape, other shapes such as Z-shaped, L shaped, also can adopt latticed members.When construction, the web member 3 of X-shaped adopts on-the-spot integrated poured shaping, or becomes a plurality of reinforced concrete members in factory process, is shaped with the bolt assembling at the scene then.In this example wind up 1, lower edge 2 and web member 3 except adopting Reinforced Concrete Materials, can also adopt other materials such as steel, stainless steel, aluminium alloys, timber or composite material to make.

Claims

[claim 1] a kind of intersection web member open frame girder, it comprises wind up (1), lower edge (2) and the web member (3) of vertical support between wind up (1), lower edge (2) that keep at a certain distance away, it is characterized in that: described web member (3) is an X-shaped.
[claim 2] intersection web member according to claim 1 open frame girder is characterized in that: wind up (1), lower edge (2) and web member (3) employing steel concrete or steel, stainless steel, aluminium alloys, timber, composite material are made.
[claim 3] intersection web member according to claim 1 open frame girder is characterized in that: the bar cross section of web member (3) is rectangle, square, circular, H shape, I-shaped, C shape, Z-shaped or L shaped.
[claim 4] is characterized in that according to claim 1,2 or 3 described intersection web member open frame girders: web member (3) is integral cast-in-situ or the shaping of factory process assembled on site.