CN104264780A - Column and curved beam horizontal and flexible connection space structure system - Google Patents
Column and curved beam horizontal and flexible connection space structure system Download PDFInfo
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- CN104264780A CN104264780A CN201410456060.4A CN201410456060A CN104264780A CN 104264780 A CN104264780 A CN 104264780A CN 201410456060 A CN201410456060 A CN 201410456060A CN 104264780 A CN104264780 A CN 104264780A
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Abstract
The invention provides a column and curved beam horizontal and flexible connection space structure system. Columns and curved beams are horizontally and flexibly connected through horizontal and flexible connecting devices, each horizontal and flexible connecting device comprises a column connector, a curved beam connector a and a steel pull rod for connecting the column connector with the curved beam connector. A vertical suspending connecting device is further connected onto each curved beam and comprises a curved beam connector b and a movable steel suspending rod. The column and curved beam horizontal and flexible connection space structure system is a grid structure and suspended-cable structure combined space structure system. In a space truss structure system, the strength and ductility of a grid curved beam structure are improved, bending resistance bearing capacity of the curved beams is remarkably improved, and deflection deformation of the curved beams is reduced. In a suspended-cable structure, suspended steel structure curved beams are connected through flexible suspending rods. The column and curved beam horizontal and flexible connection space structure system has the flexible connection characteristic, accordingly is simple in overall appearance, even in stress, good in anti-seismic energy dissipation performance and easy to repair and maintain and meets the comfort degree requirement of a suspended steel structure.
Description
Technical field
The invention belongs to technical field of buildings, be specifically related to a kind of post and curved beam horizontal flexibility connection space structural system.
Background technology
In recent years, domestic and international space structures is flourish, and building type selecting is novel, form and of a great variety, and spatially structural system form and sorting technique, can be divided into the space structures such as thin shell structures, space truss structure, latticed shell structure, suspended-cable structure, membrane structure.But can be applied in the Atrium Structure system of large bay more rare in conjunction with the space structures of two or more in space structure system.
At present, in the Atrium Structure of large bay, adopt the comparatively extensive of space truss structure and suspended-cable structure.But the many employing welding of rigid joint of space truss structure, under geological process, commissure can produce stress and concentrate, and even weld seam can be caused to tear because weldquality does not pass a test, thus cause overall structure to lose efficacy.Site Welding needs large number quipments and personnel in addition, and has certain hidden danger to scene fire prevention.Suspended-cable structure is mostly a kind of flexible connecting structure mode, and the globality that institute's syndeton is formed is not strong, under geological process, can cause suspension cable rod member discontinuity, thus cause structure partial to lose efficacy, destroy.
In the Atrium Structure of large bay, the passage connecting hall bottom and other layer of platform uses two races or three to run or spiral stairs mostly, or elevator etc., need arrange vertical supporting post in the middle of hall, it takes up room greatly, unsightly, and connects complicated.The plate that in structure, load transfer mode is most or traditional, beam, cylinder system transfer mode, namely vertical load passes to beam by plate, and beam passes to basis by post after being transmitted to post again, takies a large amount of Zhongting area.Lack the new structural systen that a kind of construction speed is fast, force path is simple, energy dissipation capacity is strong.
For latticed curved beam part, traditional architecture many employings reinforced concrete structure or pure steel structure.But structure of reinforced concrete is complicated, its development in space structures of the disadvantages affect of long construction period, and if curved beam overhung construction, increase the difficulty of the aerial molding in job site, from great, poor seismic behavior; Pure steel structure many employings girder truss, box beam or H profile steel beam form, these forms are and are rigidly connected and need larger bearing built-in fitting, and under geological process, mostly are brittle fracture.Pure steel structure is comparatively large by influence of temperature change, take up room large, cost is high, do not have and better build aesthetic.
Summary of the invention
For above the deficiencies in the prior art, the invention provides that a kind of force path is simple, uniform force is stablized, excellent earthquake resistance, installation convenient and efficient, attractive in appearance firm, post and curved beam are carried out the space structure system that horizontal flexibility is connected.
The present invention is achieved by the following technical solutions:
Post and curved beam horizontal flexibility connection space structural system, comprise post, curved beam, described post is connected by horizontal flexibility linkage with curved beam, and described horizontal flexibility linkage comprises post connector, curved beam connector a, reinforcing pull rod for joint pin connector and curved beam connector;
Described curved beam is also connected with vertical suspending connecting device, and described vertical suspending connecting device comprises curved beam connector b and removable steel suspension rod.
Described curved beam forms spiral net lattice structure by multiple box section grid cell, and described grid cell is made up of chord member, curved beam outer chord member, curved beam X-shaped diagonal web member and the trapezoidal vertical web rod of curved beam in curved beam.
Described a set of horizontal flexibility linkage comprises a post connector be fixed on post sidewall, two curved beam connector a being connected to the outer chord member place of curved beam, and corresponding two reinforcing pull rods;
Described two reinforcing pull rods are bolted in post connector;
Described two reinforcing pull rods and two curved beam connector a are also bolted.
Angle between described two reinforcing pull rods is 15 ~ 90 °.
Described curved beam connector b is connected to the both sides of the trapezoidal vertical web rod of curved beam.
Described two curved beam connector a, are symmetrical arranged centered by the curved beam connector b being arranged at the outer chord member place of curved beam.
Described removable steel suspension rod comprises suspension rod and removable connector, and described curved beam connector b is connected with suspension rod by removable connector.
Described suspension rod adopts one continous way from top to bottom.
Described post is many, and the central angle that between two adjacent pillars, curved beam is corresponding is 30 ~ 60 °.
Described post is steel core concrete column or reinforced concrete post or clean steel post.
Beneficial effect of the present invention is:
Compared with prior art, Advantages found of the present invention exists:
1, the present invention adopts the space structure system that space truss structure and suspended-cable structure combine.In space truss structure system, improve the strength and ductility of grid Curved Beam Structure, significantly increase the anti-bending bearing capacity of curved beam and reduce curved beam deflection deformation.In suspended-cable structure, adopt flexible suspension rod to connect suspention steel work curved beam, it flexibly connects feature and makes overall appearance succinct, and uniform force, energy dissipation are good, and for ease of maintenaince, maintenance, meet the requirement of suspension steel work comfort level.
2, the present invention adopts grid spiral curved beam site assembly to connect, and decreases Site Welding work, ensure that site operation quality, improve industrialization of construction industry efficiency of assembling.Vertical and the level connection joint device form power transmission all with bolts be connected with grid spiral curved beam is reasonable, though repair after rarely occurred earthquake and replacing cost little, and overall structure energy dissipation capacity and ductility more superior.
3, embody rule of the present invention forms the trigonometric expression cross binding system that a horizontal flexibility connects, effectively constrain the lateral displacement of grid spiral curved beam, also limit the out-of-plane torsion of grid spiral curved beam simultaneously, prevent the side direction of grid spiral curved beam to topple to the full extent; Vertical linkage changes in the vertical load-carrying members of tradition and bears the force way of vertical load by only post.Achieve and apply pretightning force by external force to removable vertical suspension rod, removable steel suspension rod is the continuous suspension rod of integral type from top to bottom, makes vertical bearing system have certain stressed continuity, avoids the phenomenon occurring suspension rod discontinuity.
4, the coupled column that proposes of the present invention and suspention grid spiral curved beam horizontal flexibility connection space structural system, be a kind of assembling new structural systen.This structural system anti-seismic performance is good, and lateral deformation stiffness is large, and ductility is good, and permeability is good, beautiful design, and Concrete Art sense is particularly useful for the Atrium Structure of large bay, serves the effect of Appropriate application space resources.Can realize that speed of application is fast, site work amount is few, the reliable target of structure.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is grid helical curve girder construction schematic diagram;
Fig. 3 is that grid spiral curved beam is vertical, horizontal connection structure schematic diagram;
Fig. 4 is horizontal flexibility linkage structural representation;
Fig. 5 is vertical suspending connecting device structural representation.
Number in the figure: 1 is post, 2 is curved beam, and 3 is horizontal flexibility linkage, 4 is vertical suspending connecting device, and 5 is grid cell, and 6 is chord member in curved beam, 7 is the outer chord member of curved beam, and 8 is post connector, and 9 is curved beam connector a, 10 is reinforcing pull rod, and 11 is curved beam connector b, and 12 is removable steel suspension rod, 13 is curved beam X-shaped diagonal web member, 14 is the trapezoidal vertical web rod of curved beam, and 15 is suspension rod, and 16 is removable connector.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
The invention provides a kind of post and curved beam horizontal flexibility connection space structural system, as shown in Figure 1, structural system comprises post 1 and curved beam 2.Realize being connected by horizontal flexibility linkage 3 and vertical suspending connecting device 4 between post 1 with curved beam 2.As shown in Figure 2, curved beam 2 forms spiral net lattice structure by multiple box section grid cell 5.Specifically, grid cell 5 by chord member in curved beam 6, curved beam outer chord member 7, curved beam X-shaped diagonal web member 13 and the trapezoidal vertical web rod 14 of curved beam by being welded to form, improve bulk strength and the ductility of grid helical curve girder construction, significantly increase the anti-bending bearing capacity of curved beam, reduce curved beam deflection deformation.And the post in structural system adopts many settings, much more general use steel core concrete column or reinforced concrete post or clean steel post.Wherein steel core concrete column can comprise concrete-filled steel square tubular column or concrete-filled circular steel tube column, and clean steel post also can comprise square steel post or round steel post, and if use reinforced concrete post, then can in post built-in connection, for postorder welding use.So far, technical solution of the present invention is specially, and provides a kind of coupled column and suspention grid spiral curved beam horizontal flexibility connection space structural system.
As shown in Figure 3 and Figure 4, a set of horizontal flexibility linkage 3 comprises a post connector 8, two curved beam connector a9 and two reinforcing pull rods 10 and forms.Wherein, post connector 8 is fixed on the sidewall of post 1, if use steel core concrete column, then can adopt and be welded and fixed.Be bolted between post connector 8 and reinforcing pull rod 10.Two curved beam connector a9 are connected to outer chord member 7 place of curved beam, and itself and reinforcing pull rod 10 are also bolted.Visible, horizontal flexibility linkage 3 constitutes a trigonometric expression cross binding system, effectively constrain the lateral displacement of grid spiral curved beam, also limit the out-of-plane torsion of grid spiral curved beam simultaneously, prevent the lateral displacement of grid spiral curved beam to the full extent and topple by curved.Overall structure is under horizontal force action, and curved beam 2 passes through horizontal flexibility linkage 3 by Shear transfer to post 1, and the bolt had benefited between the two connects, and there will not be the unfavorable Joint failure as torn in weld seam.
As shown in Figure 3 and Figure 5, curved beam 2 is also connected with vertical suspending connecting device 4, comprise curved beam connector b11 and removable steel suspension rod 12, wherein removable steel suspension rod 12 is made up of suspension rod 15 and removable connector 16.Curved beam connector b11 is connected with suspension rod 15 by removable connector 16, is fixed by pin.And the link position of curved beam connector b11 and curved beam is fixed on the both sides of the trapezoidal vertical web rod 14 of curved beam.As the main vertical supporting member of grid spiral curved beam, removable steel suspension rod 12 can apply pretightning force by external force, and as the dome of building can be fixed in upper end, and the leveling course on ground can be imbedded in lower end.For avoiding the phenomenon occurring suspension rod discontinuity, suspension rod 15 adopts one continous way from top to bottom, make vertical bearing system have certain stressed continuity, significantly improve the redundancy of structure, use a suspension rod just two-grid spiral curved beam can be coupled together.
About horizontal flexibility linkage 3 and vertical suspending connecting device 4 with the use of, as shown in Figure 3, curved beam connector b11 is fixed on the both sides of the trapezoidal vertical web rod 14 of curved beam, and two curved beam connector a9, centered by curved beam connector b11, to be symmetrical arranged centered by the trapezoidal vertical web rod 14 of curved beam namely equally.For improving the effect of trigonometric expression cross binding system, the angle between two reinforcing pull rods 10 corresponding with two curved beam connector a9 is 15 ~ 90 °.
Equally, in order to improve coupled column and suspention grid spiral curved beam horizontal flexibility connection space structural system center pillar and the assembling degree of curved beam, advise that central angle scope control that between two adjacent pillars, curved beam is corresponding is at 30 ~ 60 °.
The mounting method of structure of the present invention is:
1, some removable steel suspension rods 12 (shown in Fig. 2, Fig. 5) are first installed;
2, formed assembled unit with box section grid cell 5, curved beam connector a9, curved beam connector b11, completed in prefabrication;
3, curved beam connector b11 is welded to the arranged on left and right sides of the trapezoidal vertical web rod 14 of curved beam;
4, grid spiral curved beam is lifted into and is reliably connected and fixed (shown in Fig. 3, Fig. 5) with vertical suspension rod 15 pin or bolt in the air;
5, post connector 8, curved beam connector a9 and reinforcing pull rod 10 are formed.Post connector 8 is welded on the sidewall of post 1, is bolted with reinforcing pull rod 10.Curved beam connector a9 and reinforcing pull rod 10 are bolted composition trigonometric expression cross binding system (shown in Fig. 3, Fig. 4);
6, other bench are installed successively, finally form coupled column and suspention grid spiral curved beam horizontal flexibility connection space structural system (shown in Fig. 1).
Structure of the present invention, in conjunction with mounting method, is formed prefabricated welding box section grid cell 5 with chord member in curved beam 6, the outer chord member 7 of curved beam, curved beam X-shaped diagonal web member 13, the weldering of curved beam trapezoidal vertical web rod 14; Formed assembled unit with box section grid cell 5, curved beam connector a9, curved beam connector b11, completed in prefabrication; Multiple box section grid cell site welding is connected into grid spiral curved beam; Steel core concrete column, grid spiral curved beam, horizontal flexibility linkage are implemented to be connected with bolt with vertical suspending connecting device at the scene.Effectively reduce Site Welding work, node security reliability.Even if under geological process, adopt high-strength bolt to be connected with curved beam connector a9, ensure coupling part reliability on the one hand, also can utilize junction bolt power consumption on the other hand, ensure that the safety of building.
Claims (10)
1. post and curved beam horizontal flexibility connection space structural system, comprise post, curved beam, it is characterized in that described post is connected by horizontal flexibility linkage with curved beam, described horizontal flexibility linkage comprises post connector, curved beam connector a, reinforcing pull rod for joint pin connector and curved beam connector;
Described curved beam is also connected with vertical suspending connecting device, and described vertical suspending connecting device comprises curved beam connector b and removable steel suspension rod.
2. post according to claim 1 and curved beam horizontal flexibility connection space structural system, it is characterized in that described curved beam forms spiral net lattice structure by multiple box section grid cell, described grid cell is made up of chord member, curved beam outer chord member, curved beam X-shaped diagonal web member and the trapezoidal vertical web rod of curved beam in curved beam.
3. post according to claim 2 and curved beam horizontal flexibility connection space structural system, it is characterized in that described a set of horizontal flexibility linkage comprises a post connector be fixed on post sidewall, two curved beam connector a being connected to the outer chord member place of curved beam, and corresponding two reinforcing pull rods;
Described two reinforcing pull rods are bolted in post connector;
Described two reinforcing pull rods and two curved beam connector a are also bolted.
4. post according to claim 3 and curved beam horizontal flexibility connection space structural system, is characterized in that the angle between described two reinforcing pull rods is 15 ~ 90 °.
5. post according to claim 2 and curved beam horizontal flexibility connection space structural system, is characterized in that described curved beam connector b is connected to the both sides of the trapezoidal vertical web rod of curved beam.
6. the post according to claim 3 or 5 and curved beam horizontal flexibility connection space structural system, is characterized in that described two curved beam connector a, is symmetrical arranged centered by the curved beam connector b being arranged at the outer chord member place of curved beam.
7. post according to claim 1 and curved beam horizontal flexibility connection space structural system, is characterized in that described removable steel suspension rod comprises suspension rod and removable connector, and described curved beam connector b is connected with suspension rod by removable connector.
8. post according to claim 7 and curved beam horizontal flexibility connection space structural system, is characterized in that described suspension rod adopts one continous way from top to bottom.
9. post according to claim 1 and curved beam horizontal flexibility connection space structural system, it is characterized in that described post is many, the central angle that between two adjacent pillars, curved beam is corresponding is 30 ~ 60 °.
10. post according to claim 1 and curved beam horizontal flexibility connection space structural system, is characterized in that described post is steel core concrete column or reinforced concrete post or clean steel post.
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Cited By (2)
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CN108277888A (en) * | 2018-04-10 | 2018-07-13 | 苏州宾姆金属科技有限公司 | A kind of novel flexible antidetonation connector |
CN114439168A (en) * | 2022-02-18 | 2022-05-06 | 中国十九冶集团有限公司 | Internal and external double-rotation runway steel stair and construction method thereof |
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