CN201103167Y

CN201103167Y - Giant steel frame support structure

Info

Publication number: CN201103167Y
Application number: CNU2007200452165U
Authority: CN
Inventors: 唐柏鉴; 阮含婷; 李亚明
Original assignee: Jiangsu University of Science and Technology
Current assignee: Jiangsu University of Science and Technology
Priority date: 2007-08-30
Filing date: 2007-08-30
Publication date: 2008-08-20
Anticipated expiration: 2017-08-30

Abstract

The utility model relates to a jumbo steel frame bracing structure which comprises a jumbo beam, a jumbo column, a V shaped prestressed cable and a reversed V shaped rigid support. The jumbo beam and the reversed V rigid support are rectangular space steel trusses and the jumbo column is surrounded by four plane trusses to form a latticed steel cylinder body. The technical point of the jumbo steel frame supporting structure is that the reversed V shaped rigid support and the V shaped prestressed cable are assembled to form a relatively closed rhombohedral supporting system. The V shaped prestressed cable not only can offset huge thrust of the reversed V shaped rigid support, but also transfer midspan load of the jumbo beam to the jumbo column in the form of pulling force to reduce shearing force, bending moment and deflection of the beam. The theory and numerical analysis show that compared with the jumbo steel frame structure, the jumbo steel frame supporting structure of the utility model can effectively improve the capability of resisting lateral force and greatly relieve stress concentration of nodes and is applicable to high-rise and super high-rise building structures.

Description

A kind of giant-scale steel frame supporting structure

Technical field

The utility model belongs to the building structure technology field, is a kind of giant-scale steel frame supporting structure that is combined by giant-scale steel frame and lateral bracing system specifically.

Background technology

The mammoth structure power transmission is clear and definite, and the wind resistance anti-seismic performance is good, and stability is high, the construction function request that is content with very little, and speed of application is fast, is a kind of high-level structure that good future is arranged.

Mammoth structure research at present is more and to have applied be giant frame structure and huge trussed construction.Giant frame structure deformation curve integral body is shearing-type, in order to satisfy high level, high-rise sidesway requirement, thereby has only the anti-side ability that improves structure by the sectional dimension that strengthens huge member, and technical-economic index is bad.Though huge trussed construction can significantly improve the anti-side rigidity of structure, the huge diagonal web member in the huge truss has aggravated near the stressed concentration phenomenon the mega-frame host node, and engineering construction is complicated more.Therefore aforementioned two kinds of structure scope of applications are subjected to the serious restriction of their structure self shortcomings.

Summary of the invention

Technical problem is in order to overcome the shortcoming of mammoth structures such as above-mentioned mega-frame, huge truss, reach the anti-side rigidity that both effectively increases structure self, slow down the stressed concentration phenomenon of node again, thereby improve the scope of application of mammoth structure greatly, the utility model proposes a kind of giant-scale steel frame supporting structure.

Technical scheme in order to achieve the above object, a kind of giant-scale steel frame supporting structure main member of the present utility model comprises huge beam, huge post, the prestressed cable of falling the Eight characters and Eight characters rigid support.Wherein, huge post is surrounded by four plate plane truss and forms the lattice steel cylinder, and this four plate planes truss can be selected different truss forms for use according to the anti-side rigidity requirement and the joint structure situation of huge post, can arrange elevator, fire-fighting stairway etc. in the middle of the cylindrical shell.Huge beam and Eight characters rigid support are the coffin steel truss.The member of described huge post, huge beam and Eight characters rigid support adopts welded H section steel or steel pipe.The material of the prestressed cable of falling the Eight characters then according to drag-line stressed and joint structure situation select for use.

Technical essential of the present utility model is that support system is combined by the prestressed cable of falling the Eight characters and Eight characters rigid support, is the rhombus stress system of last firm gentle down, relative closure.

Beneficial effect the utility model improves structure tension performance greatly.The prestressed cable of falling the Eight characters not only can be offset the huge thrust of Eight characters rigid support to huge post, load in the huge girder span can also be passed to huge post with the form of pulling force, thereby reduces shearing, moment of flexure and the amount of deflection of beam greatly.Theoretical show, just, the novel support system of gentle combination, both effectively improved the anti-side ability of mega-frame, the stressed concentration phenomenon of having slowed down huge trussed construction node again greatly with numerical analysis.

Below in conjunction with accompanying drawing and example technology contents of the present utility model is described further; but following example only is the utility model example wherein; the rights protection scope of not representing the utility model and being limited, rights protection scope of the present utility model is as the criterion with claims.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is huge post schematic three dimensional views;

Fig. 3 is huge post cross sectional representation.

Among the above-mentioned figure, 1. huge beam; 2. huge post; 3. the prestressed cable of falling the Eight characters; 4. Eight characters rigid support.

The specific embodiment

Embodiment

As shown in Figure 1, the utility model giant-scale steel frame supporting structure main member comprises huge beam 1, huge post 2, the prestressed cable of falling the Eight characters 3 and Eight characters rigid support 4.

Huge post 2 is surrounded by four plate plane truss and forms steel cylinder (as shown in Figures 2 and 3), can arrange elevator, fire-fighting stairway etc. in the middle of the cylindrical shell.The member of huge post 2 adopts rectangular steel pipe, and steel pipe directly passes through welding mutually with steel pipe.Huge beam 1 is the coffin steel truss with Eight characters rigid support 4, and its member adopts rectangular steel pipe, and steel pipe directly passes through welding mutually with steel pipe.Huge beam 1, huge post 2 and Eight characters rigid support 4 sectional dimensions are mated mutually, thereby the member that can guarantee them can directly relatedly weld.

The prestressed cable of falling the Eight characters 3 is the steel strand rope, adopts the hydraulic jack tensioned at one end on huge beam 1, so the stretch-draw type that the is connected to node of prestressed cable of falling the Eight characters 3 and huge beam 1, the anchoring type that the is connected to node of prestressed cable of falling the Eight characters 3 and huge post 2.

The prestressed cable of falling the Eight characters 3 is closed as far as possible with Eight characters rigid support 4, forms the stress system of sealing rhombus, thereby improves the stressed of huge beam 1 and huge post 2 greatly.

Claims

1, a kind of giant-scale steel frame supporting structure, it is characterized in that: this structure is made of huge beam (1), huge post (2), the prestressed cable of falling the Eight characters (3) and Eight characters rigid support (4), wherein, huge post (2) is surrounded by four plate plane truss and forms the lattice steel cylinder, and with huge beam (1), Eight characters rigid support (4) for being rigidly connected, described prestressed cable of falling the Eight characters (3) and Eight characters rigid support (4) soften into the sealing diamond shaped under firm and are connected between huge beam (1) and the huge post (2) for last.

2, a kind of giant-scale steel frame supporting structure according to claim 1 is characterized in that, described huge beam (1) is the coffin steel truss with Eight characters rigid support (4), and the section form of Steel Space Truss and size and huge post (2) are complementary.

3, a kind of giant-scale steel frame supporting structure according to claim 1 is characterized in that, the member of described huge beam (1), huge post (2) and Eight characters rigid support (4) adopts steel pipe or welded H section steel; Adopt steel pipe, its member is welded to connect for passing through mutually; If adopt welded H section steel, then be rigidly connected for high-strength bolt between the member.

4, a kind of giant-scale steel frame supporting structure according to claim 1, it is characterized in that, the described prestressed cable of falling the Eight characters (3) adopts tensioned at one end, the stretch-draw end is located at a side of huge beam (1), the stretch-draw type that the is connected to node of prestressed cable of falling the Eight characters (3) and huge beam (1) is with the anchoring type that the is connected to node of huge post (2).