CN201746935U

CN201746935U - Super-span spherical reticulated mega-structure

Info

Publication number: CN201746935U
Application number: CN2010201995175U
Authority: CN
Inventors: 贺拥军; 周绪红
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-24
Filing date: 2010-05-24
Publication date: 2011-02-16
Anticipated expiration: 2020-05-24

Abstract

The utility model discloses a super-span spherical reticulated mega-structure for an intersected three-dimensional truss system, which comprises a main body structure and a secondary substructure arranged in the main body substructure. The super-span spherical reticulated mega-structure is characterized in that the main body structure adopts a spherical big grid structure formed in the manner of intersecting radial and circular spatial trusses; the big grid of the main body structure comprises a circular big grid at the top and a trapezoidal big grid at the periphery; the size of the grid is 10-30 m; and the substructure adopts a double-layer grid structure and is embedded in the big grid to form a structure that the big grid is sleeved outside the small grid. The super-span spherical reticulated mega-structure can effectively break through the limitation of large internal force of the rod piece, stability of the pressure lever and overall structural stability, and has the advantages of simplified structure and lower steel consumption and project cost.

Description

The huge network of a kind of sphere of super-span

Technical field

The utility model relates to the huge network of sphere of a kind of super-span in builing industry space structures field.

Background technology

The sphere net case structure is to use more a kind of structural system in the present large-span space structure, the double-deck form of general employing, but this double-layer latticed shell structure is along with some unavoidable problem can appear in the further increase of span,, rod member less as grid more in short-term, structure can easily cause whole unstability because of thick striding than too little; And grid big, when rod member is long, easily cause strut buckling because of internal force is excessive, and the steel using amount increase that causes therefrom etc.There is document analysis to show, it is also not obvious to the effect that improves the structural entity service behaviour to increase the number of plies, the more important thing is that it is infeasible adopting multilayer form to increase structural span with the restriction that breaks through internal force, rod member and node are sharply increased, and node too much makes the processing structure complicated more because of the rod member that connects.

Summary of the invention

The purpose of this utility model is to overcome deficiency of the prior art, and the crossed space truss that a kind of super-span is provided is the huge network of sphere.To realize effectively breaking through the big internal force of rod member and pressure bar stabilization and structural entity stable restriction, simplified construction further reduces steel using amount, reduces construction costs simultaneously.

The technical solution of the utility model is: comprise agent structure and the minor structure two-stage that is arranged in the agent structure, it is characterized in that, described agent structure is a kind of by radially intersecting the spherical macrolattice structure that constitutes with the hoop space truss, described agent structure macrolattice is divided into the circular macrolattice at top and the trapezoidal macrolattice of periphery, macrolattice is of a size of 10～30m, described minor structure is common double-deck flat plate framed structure, be embedded in the macrolattice, form the form of structure that a kind of macrolattice overlaps little grid, the load of total is born by relatively sparse and grand agent structure.

Described trapezoidal flat plate framed structure minor structure is embedded in the trapezoidal macrolattice of agent structure in four angle point supporting modes, the peripheral number of described top polygon flat plate framed structure minor structure is consistent with the hoop number of partitions of described agent structure, is embedded in the circular macrolattice in the mode of peripheral multi-point support.

Described space truss by two parallel upper chords, lower chord, go up web member between the lower chord and the cross bar between two upper chords is formed, the space truss section is a triangle.

Described lower chord, web member and the cross bar gone up is round steel pipe, and web member and cross bar all adopt tubular joint directly to be welded on the lower chord.

Described footpath, ring two connect by welded hollow spherical joints to space truss, and each zone of intersection comprises four wind up node and lower-chord panel points.

The form of structure that this macrolattice of the utility model overlaps little grid can overcome the problem of strut buckling effectively, the integral rigidity that can increase substantially structure with stability, avoid strut buckling.Be welded to connect by tubular joint between inner each rod member of space truss, can avoid adopting any connector.The load of total is born by relatively sparse and grand agent structure, each minor structure is only born the load in the corresponding macrolattice scope, thereby the minor structure internal rod can save steel using amount by minimal construction requirement configuration substantially, reduced construction costs.In addition, space truss and minor structure all can process at produce in factory and be the quantity basic element of character seldom, are transported to assembled on site then and form overall structure, will significantly reduce the on-site installation work amount, shorten the construction period.Applicable to the round building plane roof structure of 150～200m span.

Description of drawings

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

Fig. 2 is embedded in trapezoidal macrolattice schematic diagram for trapezoidal flat plate framed structure minor structure in four angle point supporting modes;

Fig. 3 is the A A sectional view of Fig. 2;

Fig. 4 is embedded in circular macrolattice schematic diagram for top polygon minor structure in peripheral multi-point support mode;

Fig. 5 is a triangular-section space truss beam schematic diagram;

Fig. 6 is the A-A sectional view of Fig. 5;

Fig. 7 is a space truss zone of intersection organigram.

The specific embodiment

In conjunction with the accompanying drawings:

Total is made of with minor structure II (III) two-stage that is arranged in the agent structure agent structure I, described agent structure is a kind ofly to intersect the spherical macrolattice structure that constitutes by space truss 1 radially and hoop space truss 2, described agent structure macrolattice is divided into the circular macrolattice 3 at top and the trapezoidal macrolattice 4 of periphery, macroreticular 10～the 30m that is of a size of, described minor structure is common double-deck flat plate framed structure, be embedded in the macrolattice 3 (4), form the form of structure that a kind of macrolattice overlaps little grid, the load of total is born by relatively sparse and grand agent structure, and minor structure is substantially only born the load in the corresponding macrolattice scope.

Described trapezoidal flat plate framed structure minor structure II is embedded in the trapezoidal macrolattice 4 of agent structure with four angle points, 5 support patterns, and top polygon flat plate framed structure minor structure III is embedded in the circular macrolattice 3 with peripheral multiple spot 6 support patterns.

The peripheral number of described top polygon flat plate framed structure minor structure III is consistent with the hoop number of partitions of described agent structure I.

Described footpath, ring two to space truss 1 with 2 by two parallel upper chord 7, lower chord 8, go up

web member

9 and 10 compositions of the cross bar between two upper chords between the lower chord; Described space truss section is a triangle; Described lower chord, web member and the cross bar gone up is round steel pipe, and web member and cross bar adopt tubular joint directly to be welded on the lower chord.

Described footpath, ring two are connected by welded hollow spherical joints with 2 to space truss 1, and each zone of intersection comprises four wind up node 11 and lower-chord panel points 12.

Claims

1. the crossed space truss of a super-span is the huge network of sphere, comprise agent structure and the minor structure two-stage that is arranged in the agent structure, it is characterized in that, described agent structure is a kind of by radially intersecting the spherical macrolattice structure that constitutes with the hoop space truss, described agent structure macrolattice is divided into the circular macrolattice at top and the trapezoidal macrolattice of periphery, its size of mesh opening is 10～30m, described minor structure is common double-deck flat plate framed structure, be embedded in the macrolattice, form the form of structure that a kind of macrolattice overlaps little grid.

2. super-span crossed space truss according to claim 1 is the huge network of sphere, it is characterized in that, described trapezoidal flat plate framed structure minor structure is embedded in the trapezoidal macrolattice of agent structure in four angle point supporting modes, the peripheral number of described top polygon flat plate framed structure minor structure is consistent with the hoop number of partitions of described agent structure, is embedded in the circular macrolattice in the mode of peripheral multi-point support.

3. super-span crossed space truss according to claim 1 is the huge network of sphere, it is characterized in that, described space truss by two parallel upper chords, lower chord, go up web member between the lower chord and the cross bar between two upper chords is formed, the space truss section is a triangle.

4. super-span crossed space truss according to claim 3 is the huge network of sphere, it is characterized in that, described lower chord, web member and the cross bar gone up is round steel pipe, and web member and cross bar all adopt tubular joint directly to be welded on the lower chord.

5. super-span crossed space truss according to claim 1 is the huge network of sphere, it is characterized in that, described footpath, ring two connect by welded hollow spherical joints to space truss, and each zone of intersection comprises four wind up node and lower-chord panel points.