CN201933611U

CN201933611U - Wall face supporting large cantilever steel network frame

Info

Publication number: CN201933611U
Application number: CN201120008543XU
Authority: CN
Inventors: 袁昕
Original assignee: SHENZHEN FANGJIA ARCHITECTURE DESIGN CO Ltd
Current assignee: SHENZHEN FANGJIA ARCHITECTURE DESIGN CO Ltd
Priority date: 2011-01-12
Filing date: 2011-01-12
Publication date: 2011-08-17
Anticipated expiration: 2021-01-12

Abstract

The utility model discloses a wall face supporting large cantilever steel network frame, which comprises an upper chord layer steel network frame and a lower chord layer steel network frame, wherein the steel network frame is supported by a vertical surface consisting of a short edge and a half of an adjacent long edge; a wall face is taken as a supporting seat; a bidirectional orthogonal truss type steel pipe bolt ball node network frame is adopted; the top of the network frame is provided with 2-8 rising air exhaust clerestory pressure relief skylights; and the outer side wall face of the network frame is provided with a loose aluminum square tube grid louver wall. The wall face supporting large cantilever steel network frame has the advantages that: the using amount of steel is small, and the conventional single-form wall face supporting large cantilever steel network frame is changed.

Description

Metope supports the steel mesh frame of encorbelmenting greatly

[technical field]

The utility model relates to the structural element of the covering large area space of encorbelmenting, and for example roof system, awning etc. refer to that especially a kind of metope supports the steel mesh frame of encorbelmenting greatly.

[background technology]

Big cantilevered structure is used for roof system, the superstructure of large public building, access awning and so on more.So-called " encorbelmenting greatly ", length encorbelmenting greater than 12M refers generally to encorbelment.The big cantilevered structure of prior art mostly is " continuously " formula to be chosen, and promptly chooses structure and crosses the bearing of encorbelmenting with constant beam, plate cross section, extends continuously to the bearing rear of encorbelmenting, and is utilized its bigger cross section to bear the huge internal force at bearing place.But it need take corresponding architectural space and steel using amount is big, form is single.

[summary of the invention]

The purpose of this utility model is to provide a kind of steel using amount less, and the metope that changes existing single form supports the steel mesh frame of encorbelmenting greatly.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of metope supports the steel mesh frame of encorbelmenting greatly, includes two aspect steel meshes of lower edge pestle frame, it is characterized in that; The steel mesh frame is made bearing with the vertical plane supporting on minor face and adjacent half long limit with metope, adopts two-way quadrature truss-like, the steel pipe grid structure with bolt-sphere joints; 2-8 ascending manner air draft dormer pressure release skylight is set at the rack top; The outside metope of rack is dredged aluminium square tube grid louver wall between being.

" continuously " formula compared with prior art is chosen, and metope is done to support the steel using amount that can save its back segment, and ascending manner air draft dormer can reduce blast effectively, improves the wind loading rating of rack.

The beneficial effects of the utility model are: steel using amount is less, novel structure.

[description of drawings]

The utility model will be further described below in conjunction with accompanying drawing.

Fig. 1 is that metope of the present utility model supports the steel grid structure schematic diagram of encorbelmenting greatly;

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is the left view of Fig. 1.

Fig. 4 is built-in fitting one schematic diagram of the utility model embodiment;

Fig. 5 is the right view of Fig. 4.

Fig. 6 is built-in fitting two schematic diagrames of the utility model embodiment;

Fig. 7 is the right view of Fig. 6.

Among the figure: 1 for last lower edge bearing, 2 for the end of encorbelmenting, 3 for pressure release skylight, 4 be horizontal support member for upper chord, 5 is lower chord, 6.

[specific embodiment]

Referring to accompanying drawing, a kind of metope of the utility model supports the steel mesh frame of encorbelmenting greatly, includes two aspect steel meshes of lower edge pestle frame, it is characterized in that; The steel mesh frame is made bearing with the vertical plane supporting on minor face and adjacent half long limit with metope, adopts two-way quadrature truss-like, the steel pipe grid structure with bolt-sphere joints; 6 ascending manner air draft dormer pressure release skylights are set at the rack top; The outside metope of rack is dredged aluminium square tube grid louver wall between being.

In embodiment of the present utility model, with 1.5 limits, the rack of encorbelmenting greatly of vertical plane supporting, rise is the 10th a layer of first floor height (4.00M), the rack form has been selected two-way quadrature truss-like, steel pipe grid structure with bolt-sphere joints for use.Consider the positive blast and the negative blast that may occur in its upright projection area.In order to reduce the wind-force that actual capabilities are born as far as possible, evenly be provided with 6 ascending manner air draft dormers in appropriate location, rack top, its side is an ornamental thin aluminium square tube grid louver wall.These measures can reduce blast effectively, improve the wind loading rating of rack.For the upper and lower string bearing of rack, its bearing Jie Jian Rod, the support node component, weld seam all improves degree of safety 20%, (being about to internal force * 1.2 calculates); And give the component of embedded part for bearing, and weld seam, the Force transmission partses in the concrete structure etc. then improve degree of safety a grade (promptly 1.2 * 1.2=1.44) again.Guarantee emphasis with this, it is heavy to give top priority to what is the most important; Meanwhile, also leave the reserve safety measure: rack is applied posttension give stress and be anchored on the agent structure.Wind shook when this reserve measure can reduce the work amount of deflection of rack and strong wind again, improved supporting capacity and overall safety degree again.Employed embedded part, done the consideration and the effort of the following aspects:

A, form with 20～30 steel plates weldings.

B, can resist the huge end reactions of variform such as drawing that structure produces by external force, pressure, shearing, bending.

C, all weld seams, component and stressed all through calculating, and improved degree of safety.

D, leave standby stress cloth muscle duct and the anchored end position of giving.

E, the concrete structure partial in concrete resistance to plucking awl Stress Transfer scope are strengthened: enlarging section; Strengthen arrangement of reinforcement; Arrange and disperse Force transmission parts.See Fig. 4-Fig. 7 for details.

Claims

1. a metope supports the steel mesh frame of encorbelmenting greatly, includes two aspect steel meshes of lower edge pestle frame, it is characterized in that; The steel mesh frame is made bearing with the vertical plane supporting on minor face and adjacent half long limit with metope, adopts two-way quadrature truss-like, the steel pipe grid structure with bolt-sphere joints; 2-8 ascending manner air draft dormer pressure release skylight is set at the rack top; The outside metope of rack is dredged aluminium square tube grid louver wall between being.