CN211037313U

CN211037313U - Connected node suitable for large-span spatial grid structure

Info

Publication number: CN211037313U
Application number: CN201921629853.6U
Authority: CN
Inventors: 叶金亮; 丁立群
Original assignee: Xiamen Biad Construction Design Co ltd
Current assignee: Xiamen Biad Construction Design Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-17
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a connected node suitable for large-span spatial grid structure, including the clean shot, the solid sphere, rack member and a plurality of baffle, the inside at the clean shot is established to the solid sphere, a plurality of baffles are established between solid sphere and clean shot, the both sides of baffle respectively with solid sphere and clean shot fixed connection, the rack member includes a plurality of chords, a plurality of web member and a plurality of fixing bolt, the one end and the clean shot fixed connection of chord member, the web member passes through fixing bolt to be fixed on the clean shot, set up the first screw hole that a plurality of runs through the clean shot wall completely on the clean shot, be equipped with the second screw hole on the corresponding position of every first screw hole on the solid sphere, the one end of web member has set firmly the shrouding, fixing bolt pass shrouding and first screw hole and with second. The utility model provides a large-span spatial grid structure bolt ball pin connection and welded connection compatible problem simultaneously, unite two into one welding ball and bolt ball for the size of ball joint satisfies the building requirement.

Description

Connected node suitable for large-span spatial grid structure

Technical Field

The utility model relates to a civil engineering large-span steel construction technical field, in particular to connected node suitable for large-span spatial grid structure.

Background

With the massive application of large-span public buildings, the grid structure system is also massively applied. The grid structure is a space structure formed by connecting a plurality of rod pieces in a certain grid form through nodes. The device has the advantages of small space stress, light weight, high rigidity, good earthquake resistance and the like; can be used as the roof of buildings such as gymnasiums, movie theaters, exhibition halls, waiting halls, stadium stand awnings, hangars, bidirectional large-column-distance workshops and the like. The defects are that the number of the rod pieces converged on the node is large, and the manufacturing and installation are more complicated than that of a plane structure.

Because the welding ball structure adopts the hollow ball and the welding pipe to be butt-welded on site, the welding ball structure is greatly influenced by air temperature and wind speed, the blanking and welding equipment is basically manually operated, so that the blanking, positioning and welding process errors are large, the precision is low, the quality defects of 'false penetration' and 'slag inclusion' easily occur in a welding seam, the included angle control among various rod pieces is not accurate, the balance force transmission is damaged, and the steel structure deflection is increased; from the difference of space effects, the welded ball is a hollow ball node, namely the ball has a large diameter ranging from phi 160 to phi 900, and the welded ball has a large pipe in a spatial level and is disproportionate in proportion, so that the welded ball is heavy, rigid and restrained.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a connection node suitable for large-span grid structure, which can use the connection node of welding ball and bolt ball simultaneously to solve the structural defect problem that the welding ball proposed in the background art is too big, the proportion is out of order and the human factor leads to, and can satisfy the different connection modes of many chords and web members.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a connected node suitable for large-span spatial grid structure, includes clean shot, solid sphere, rack member and a plurality of baffle, the solid sphere establish the inside at the clean shot. The plurality of partition plates are arranged between the solid balls and the hollow balls, and two sides of each partition plate are fixedly connected with the solid balls and the hollow balls respectively. The rack member include a plurality of chords, a plurality of web members and a plurality of fixing bolt, the one end of chord member with clean shot fixed connection, the web member pass through fixing bolt fixes on the clean shot. The hollow ball is provided with a plurality of first threaded holes which completely penetrate through the wall surface of the hollow ball, the solid ball is provided with a second threaded hole at the position corresponding to each first threaded hole, one end of the web member is fixedly provided with a sealing plate, and the fixing bolt penetrates through the sealing plate and the first threaded holes and is in threaded connection with the second threaded holes.

Further, the net rack rod piece further comprises a plurality of fastening bolts, the fastening bolts are sleeved on the fixing bolts, and the end faces of the two ends of the fastening bolts are respectively attached to the outer wall face of the hollow ball and the sealing plate. The tightening bolt is provided with a fastening screw hole which completely penetrates through the side wall of the tightening bolt, and the tightening bolt is fixed on the fixing bolt through the fastening screw.

Preferably, in order to achieve a tighter fit, the surface of the outer wall surface of the hollow sphere, which is attached to the fastening bolt, is a plane.

Furthermore, the wall thickness of the hollow ball is 6-40mm, and the diameter is 150-650 mm.

Further, the diameter of the solid sphere is 100-300 mm.

Further, the hollow balls, the chord members and the web members are made of Q235B or Q345B or Q345C, and the solid balls are made of 45# steel.

The utility model discloses following beneficial effect has: the utility model provides a connected node suitable for large-span spatial grid structure unites two into one welding ball and bolt ball for same ball node both can adopt welded connection, also can adopt bolted connection, has solved many web members welded connection precision can not guarantee, the welding seam is many and the stress is concentrated problem. Welding and bolted connection combine each other, can make the size of ball joint satisfy the building requirement as far as possible, and the bolted connection face adopts batch production preparation, only needs small-size instrument at the scene, and it is convenient to install, has practiced thrift a large amount of costs.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional view of a node.

Fig. 3 is an exploded view of the web portion.

Description of the main component symbols: 1. hollow spheres; 10. a first threaded hole; 2. a solid sphere; 20. a second threaded hole; 31. a chord member; 32. a web member; 320. closing the plate; 33. supporting the bolt tightly; 330. fastening a screw hole; 34. fixing the bolt; 4. a partition plate; 5. And (5) fastening the screw.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1-3, a connection node suitable for a large-span grid structure comprises a hollow sphere 1, a solid sphere 2, a grid rod and a plurality of partition plates 4, wherein the hollow sphere 1 is a welded sphere, the solid sphere 2 is a bolt sphere, and the solid sphere 2 is arranged inside the hollow sphere 1. And a plurality of partition plates 4 are arranged between the solid balls 2 and the hollow balls 1, and two sides of each partition plate 4 are respectively fusion-penetration welded with the solid balls 2 and the hollow balls 1. Wherein, the wall thickness of clean shot 1 is 10mm, and the diameter is 300mm, and the material is Q235B. The diameter of the solid ball 2 is 100mm, the material is 45# steel, and the material of the chord member 31 and the web member 32 is Q235B.

The net rack rod piece comprises a plurality of chord members 31, a plurality of web members 32, a plurality of tightening bolts 33 and a plurality of fixing bolts 34, one end of each chord member 31 is welded with the hollow ball 1, and the web members 32 are fixed on the hollow ball 1 through the fixing bolts 34 and the tightening bolts 33. A plurality of first threaded holes 10 which completely penetrate through the wall surface of the hollow ball 1 are formed in the hollow ball 1, and a second threaded hole 20 is formed in the solid ball 2 at the position corresponding to each first threaded hole 10. The sealing plate 320 is fixedly installed at one end of the web member 32, and the fixing bolt 34 passes through the sealing plate 320 and the first screw hole 10 and is screw-coupled to the second screw hole 20. The supporting bolt 33 is sleeved on the fixing bolt 34, end faces of two ends of the supporting bolt 33 are respectively attached to the outer wall surface of the hollow ball 1 and the seal plate 320, and the surface of the outer wall surface of the hollow ball 1 attached to the supporting bolt 33 is milled to be a plane. The fastening bolt 33 is provided with a fastening screw hole 330 which completely penetrates through the side wall of the fastening bolt 33, and the fastening bolt 33 is fixed to the fixing bolt 34 by the fastening screw 5.

The utility model discloses to weld ball and bolt ball unite two into one for same ball joint both can adopt welded connection, also can adopt bolted connection, solved many web bars welded connection precision can not guarantee, the welding seam is many and the stress is concentrated problem. Welding and bolted connection combine each other, can make the size of ball joint satisfy the building requirement as far as possible, and the bolted connection face adopts the batch production preparation, only needs small-size instrument at the scene, and it is convenient to install, has practiced thrift a large amount of costs, is suitable for using widely.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a connected node suitable for large-span spatial grid structure which characterized in that: including clean shot, solid ball, rack member and a plurality of baffle, the solid ball establish the inside at the clean shot, a plurality of baffles establish between solid ball and the clean shot, the both sides of baffle respectively with solid ball and clean shot fixed connection, the rack member include a plurality of chords, a plurality of web member and a plurality of fixing bolt, the one end of chord member with clean shot fixed connection, the web member pass through fixing bolt fixes on the clean shot, the clean shot on set up the first screw hole that a plurality of runs through the clean shot wall completely, the solid ball on be equipped with the second screw hole on the corresponding position of every first screw hole, the one end of web member has set firmly the shrouding, fixing bolt pass shrouding and first screw hole and with second screw hole threaded connection.

2. A connection node adapted for use in a large span grid structure according to claim 1, wherein: the rack rod piece still include a plurality of tight bolts, tight bolt cover establish on fixing bolt, the both ends terminal surface of tight bolt respectively with the outer wall and the shrouding of clean shot laminate mutually, set up the fastening screw hole that runs through tight bolt lateral wall completely on the tight bolt of propping up, tight bolt pass through fastening screw and fix on fixing bolt.

3. A connection node adapted for use in a large span grid structure according to claim 2, wherein: the outer wall surface of the hollow ball is a plane surface which is attached to the tightening bolt.

4. A connection node adapted for use in a large span grid structure according to claim 1, wherein: the wall thickness of the hollow ball is 6-40mm, and the diameter is 150-650 mm.

5. A connection node adapted for use in a large span grid structure according to claim 1, wherein: the diameter of the solid sphere is 100-300 mm.

6. A connection node adapted for use in a large span grid structure according to claim 1, wherein: the hollow balls, the chord members and the web members are made of Q235B or Q345B or Q345C, and the solid balls are made of 45# steel.