CN101775914B

CN101775914B - Bearing structure of three-dimensional garage with energy-consumption truss lateral-resistance form vertical-lifting type high-rise steel structure

Info

Publication number: CN101775914B
Application number: CN2010101080537A
Authority: CN
Inventors: 周绪红; 贺拥军; 许红胜; 杨承超
Original assignee: Hunan University
Current assignee: Hunan University
Priority date: 2010-02-10
Filing date: 2010-02-10
Publication date: 2011-03-23
Anticipated expiration: 2030-02-10
Also published as: CN101775914A

Abstract

The invention discloses a load-bearing structure of an energy-dissipating truss anti-side vertical lifting type high-rise steel structure three-dimensional garage. The anti-side components on the facades on both sides of the structure that bear the in-plane horizontal force are composed of energy-dissipating trusses arranged in interlayers. The energy-dissipating truss is composed of upper and lower chords, two vertical webs, and two oblique webs, all webs are symmetrically arranged, the height of the truss is the same as the height of the structural layer, and the truss is flush with the structural layer; the upper and lower The lower chords are all continuous chords, both ends of which are rigidly connected to the corner columns; the two vertical webs are perpendicular to the upper and lower chords, and the two ends are respectively hinged to the upper and lower chords, and the distance between the two vertical webs is 1/8 ~1/4 times the height of the truss; one end of the diagonal web is hinged at the connection node between the upper chord and the corner column, and the other end is hinged obliquely downward at the connection node between the vertical web and the lower chord; thus, the upper and lower chords of the energy dissipation truss A shear energy dissipation section with a length of 1/8 to 1/4 times the height of the truss is formed in the middle. The invention enables the structure to have better anti-seismic performance and sufficient anti-side rigidity; meanwhile, the interlayer arrangement of the truss makes it convenient to hoist and install the mechanical equipment in the garage from the side.

Description

A kind of energy-consumption truss lateral-resistance formula vertical lift type high-rise steel structure multi-storied garage load-carrying members

Technical field

The present invention relates to a kind of urban parking area, specifically a kind ofly be used for the vertical lift type high-rise steel structure multi-storied garage load-carrying members that the city dolly is parked.

Background technology

Along with the fast development of China's rapid economic development and auto industry, the popularity rate of family expenses car improves rapidly in the city.Because the parking lot construction in city does not catch up with the growth of car quantity far away, make that the contradiction of vehicle parking is becoming increasingly acute in the city.Floor space is little because the high-rise steel structure parking systems has, appearance car rate height, easy construction, and characteristics such as storing and taking out car required time weak point, bicycle parking safety become the preferred option that China big and medium-sized cities solve parking problem.The vertical lift type storied 3-D garage parking that is used to park car that has built up at present, form by the winding shaft of centre and the parking space of both sides, its load-carrying members generally adopt each layer of four sides to be abound with the frame system of center support, perhaps adopt unsupported pure frame structure.The former anti-side rigidity is big, but anti-seismic performance is relatively poor, and the rod member numbers of poles is many, the on-site installation work amount is big, and in addition, each layer of four sides is abound with to support and is unfavorable for that plant equipment lifting is from the side installed in the garage, will prolong the construction period, be unfavorable in the city that prosperity is crowded, installing and build.Unsupported pure frame type garage support framework has bigger ductility, the anti-seismic performance energy, but anti-side rigidity is little, lateral displacement is big, second-order effects is remarkable, easily cause the destruction of non-structural element, excessive lateral deformation easily causes lifting, transverse-moving mechanism to lose stable working environment and operation troubles occurs.Anti-side of coordination structure and anti-seismic performance solve storied 3-D Garage lifting, crossing system stable operation environment problem, become the problem that solution is needed in the fast development of high steel work parking systems badly.

Summary of the invention

The objective of the invention is to according to the deficiencies in the prior art, a kind of novel load-bearing skeleton structural system that is suitable for vertical lift type high-rise steel structure multi-storied garage is proposed, this structural system can coordinate well the anti-side rigidity of high-rise steel structure multi-storied garage and anti-seismic performance, simultaneously can Convenient garage in plant equipment from the side hang in installation.

Technical scheme of the present invention is: the corner post that comprises four jiaos of load-bearing skeletons, the center pillar of front and back facade, vertically frame is set a roof beam in place, X-shaped before and after being arranged between the facade center pillar supports, the intermediate lateral Vierendeel girder, the anti-side member of structure two side elevations, the winding shaft in the middle of constituting and the parking space of both sides, structure laterally is about 6 meters, vertically be about 7.8 meters, floor height is 2.0～2.4 meters, it is characterized in that, the energy-consumption truss that the anti-side member of described structure two side elevations is arranged by interlayer constitutes, described energy-consumption truss is by last, lower chord and two perpendicular web members and two diagonal web members constitute the equal symmetric arrangement of all web members; Described upper and lower chord member is continuous chord member, described two perpendicular web members are arranged in energy-consumption truss middle part and vertical with upper and lower chord member, its two ends are hinged with upper and lower chord member respectively, two perpendicular web member spacings are 1/8～1/4 times of depth of truss, described diagonal web member one end is hinged on the connected node place of upper chord and corner post, and the other end is oblique hinged at perpendicular web member and lower chord connected node place downwards; Thereby form an empty stomach section between the two perpendicular web members of energy-consumption truss middle part, the upper and lower chord member of energy-consumption truss constitutes the shear energy dissipation section in intersegmental on an empty stomach part.

Described energy-consumption truss height is identical with the structure floor height, and truss is concordant with deck.

Described upper and lower chord member two ends and described corner post rigidly connect.

Vertical lift type high-rise steel structure multi-storied garage load-carrying members of the present invention, because the existence of its lateral resisting truss middle part shear energy dissipation section, under Horizontal Seismic Load, the shear energy dissipation section can at first be sheared plastic strain, earthquake energy, alleviate or avoid the destruction of other structural element, increased the energy dissipation ability of structure, the existence of truss also provides enough anti-side rigidity for structure.In addition, the truss interlayer arranges, be convenient to plant equipment in the garage from the side hang in installation, easy construction; The span of truss and height dimension have determined that the angle between interior diagonal web member of truss and the chord member is also more moderate.

Description of drawings

Fig. 1 looks schematic diagram for structure three of the present invention;

Fig. 2 is the front elevation drawing of Fig. 1;

Fig. 3 is the lateral view of Fig. 1;

Fig. 4 constitutes schematic diagram for energy-consumption truss;

Fig. 5 is the 3D solid design sketch at three layers at structure of the present invention middle part;

Fig. 6 is a structural plan of the present invention arrangement diagram.

The specific embodiment

The present invention is further illustrated below in conjunction with drawings and Examples:

Embodiment:

The three-dimensional car load-carrying members of present embodiment vertical lift type high-rise steel structure lateral length S is that 6 meters, longitudinal length L are 7.8 meters, floor height h is 2.2 meters, by the center pillar 2 of corner post 1, front and back facade, vertically (x to) frame beam 3, be arranged in before and after X-shaped between the facade center pillar support 4, the energy-consumption truss 6 of intermediate lateral (y to) Vierendeel girder 5 and two sides forms, constitutes the parking space II of middle winding shaft I and both sides.The energy-consumption truss 6 that structure two side elevation interlayer cloths are put constitutes the anti-side member of horizontal force in the structure bearing plane.

The energy-consumption truss 6 of present embodiment is made of upper chord 7, lower chord 8 and two diagonal web members 9 and two perpendicular web members 10, the equal symmetric arrangement of all web members, and depth of truss is identical with the structure floor height, and truss is concordant with deck; Described pricncipal rafter 7, lower chord 8 are continuous chord member, and two ends and corner post 1 rigidly connect; Described two perpendicular web members 10 are arranged in energy-consumption truss middle part, and perpendicular to upper and lower chord member, two ends are hinged with upper and lower chord member respectively, and two perpendicular web member spacings are 1/8～1/4 times of depth of truss h; Described diagonal web member 9 one ends are hinged on the connected node place of described upper chord 7 and corner post 1, and the other end is oblique hinged with lower chord 8 connected node places at perpendicular web member 10 downwards; Thereby form an empty stomach section 11 10 of two perpendicular web members in described energy-consumption truss 6 middle parts, the length a of this empty stomach section 11 is approximately 1/8～1/4 of energy-consumption truss height h, make pricncipal rafter 7 and lower chord 8 form shear energy dissipation section 12 in the intersegmental part of truss empty stomach, plastic strain at first takes place to shear under Horizontal Seismic Load, earthquake energy reaches the purpose that alleviates or avoid other structural element to destroy.

Claims

1. A load-bearing structure of an energy-dissipating truss anti-side vertical lifting type high-rise steel structure three-dimensional garage, including corner columns at the four corners of the load-bearing skeleton, center columns on the front and rear facades, longitudinal side frame beams, arranged between the center columns on the front facade and The X-shaped support between the middle columns of the rear facade, the transverse frame beam in the middle, and the anti-side members of the facades on both sides of the structure constitute the lifting shaft in the middle and the parking spaces on both sides. The horizontal length of the structure is 6 meters, and the vertical length is 7.8 meters. The storey height is 2.0-2.4 meters, and it is characterized in that the anti-side members of the facades on both sides of the structure are composed of energy-dissipating trusses arranged in interlayers, and the energy-dissipating trusses are composed of upper and lower chords, two vertical webs and It is composed of two oblique webs, and all webs are arranged symmetrically; the upper and lower chords are continuous chords, and the two vertical webs are arranged in the middle of the energy dissipation truss and perpendicular to the upper and lower chords. They are respectively hinged to the upper and lower chords, and the distance between the two vertical webs is 1/8 to 1/4 times the height of the truss. The joints between the vertical webs and the lower chords are hinged; thus, a fasting section is formed between the two vertical webs in the middle of the energy dissipation truss, and the part of the upper and lower chords of the energy dissipation truss between the fasting sections constitutes a shear energy dissipation section.

2. The energy-dissipating truss anti-side vertical lifting type high-rise steel structure three-dimensional garage load-bearing structure according to claim 1, characterized in that, the height of the energy-dissipating truss is the same as the structural floor height, and the truss is flush with the structural floor.

3. The load-bearing structure of the energy-dissipating truss anti-side vertical lifting type high-rise steel structure three-dimensional garage according to claim 1, characterized in that, the two ends of the upper and lower chords of the energy-dissipating truss are rigidly connected to the corner columns. the