CN105386524A - Bolt connecting hollow spherical joint of steel grid - Google Patents
Bolt connecting hollow spherical joint of steel grid Download PDFInfo
- Publication number
- CN105386524A CN105386524A CN201510875373.8A CN201510875373A CN105386524A CN 105386524 A CN105386524 A CN 105386524A CN 201510875373 A CN201510875373 A CN 201510875373A CN 105386524 A CN105386524 A CN 105386524A
- Authority
- CN
- China
- Prior art keywords
- bolt
- hollow
- rod
- cushion block
- rod end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
- E04B1/585—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form with separate connection devices
Abstract
The invention discloses a bolt connecting hollow spherical joint of a steel grid. The bolt connecting hollow spherical joint comprises a hollow sphere, cushion blocks, bolts, rod end connecting pieces and round tube rod pieces, wherein the hollow sphere is formed by welding two finished hollow semispheres; the cushion blocks are welded on the sphere according to the positions of the rod pieces, and are provided with bolt holes at parts, corresponding to the positions of the end plate bolts, of the rod end connecting pieces; one end of each rod end connecting piece and a block body of the corresponding cushion block are fastened together at the end face by bolts; the other end of each rod end connecting piece and the corresponding round tube rod piece are tightly connected by welding. All manufacture operations of the joint can be performed in a factory, so that site welding is avoided, and simplicity and convenience in construction are realized; meanwhile, the steel consumption is reduced, and the phenomena of false twisting and over twisting which frequently occur in a bolt spherical joint can be avoided. The bolt connecting hollow spherical joint provides a brand-new choice for design work in structural rigidity and torsion-resisting function, and has the characteristics that the cost is reduced, the design quality, construction quality and working efficiency are improved, and the advantages of the bolt connecting hollow spherical joint can be better exerted in the field of medium and large-span steel structural grid construction.
Description
Technical field
The invention discloses a kind of Elements of Space Grid Truss bolt and connect hollow ball node, belong to the space structures technical field of civil engineering.
Background technology
Steel grid structure have adapt to large, the dead load of span light, make full use of Materials with High Strength, save material, assemblingization degree is high, speed of application fast and the advantages such as environmental protection of constructing, be extremely widely used in large span spatial structure.Existing grid node kind is more, and the exposed good bolted spherical node of space truss structure multiselect apparent visual and welded hollow spherical joints, these two kinds of nodes are nodes that current domestic space structures is most widely used.But bolted spherical node tool member is comparatively complicated, cost costly, and very easily occurs that super stubborn phenomenon is twisted in bolt vacation.And welded hollow spherical joints Site Welding difficulty is comparatively large, some needs overhead welding, and danger coefficient is comparatively large, and difficulty of construction is large, and the duration is longer.And in Space Truss Design, because optional node kind is few, the rigidity Design for grid node compares waste, bolted spherical node bending stiffness and anti-twisting property more weak.Therefore, how the advantage of two kinds of nodes to be combined, effectively can reduce difficulty of construction again, being conducive to practical application is problem demanding prompt solution.
Summary of the invention
The object of the invention is the some shortcomings in order to solve existing two kinds of grid nodes in background technology, proposing a kind of Novel steel rack bolt and connecting hollow ball node structure.The present invention had both had the advantage of conventional node, overcame the deficiency of bolted spherical node and the processing of welded hollow spherical joints component and node construction simultaneously.
The technical solution used in the present invention is: a kind of Elements of Space Grid Truss bolt connects hollow ball node, comprises hollow steel ball, cushion block, bolt, rod end connector and pipe rod member;
Described hollow steel ball is welded by two finished product hemisphere, described cushion block is according to sphere size and rod member installation site, the sphere with hollow steel ball surface profiles is milled out in side, and by this side and hollow steel ball firm welding tight, the end face of cushion block opposite side and rod end connector is bolted, and the other end of described rod end connector and the end face of pipe rod member are by being welded to connect closely;
Described cushion block end face, rod end connector two end faces identical with the face size of pipe rod member, and their axis is point-blank.
As preferably, described bolt adopts 10.9s level high-strength bolt, and size model is determined by needs.
As preferably, the main part in described rod end connector is the connection web of the steel plate composition of the proper height of two twenty percent 120 degree, connects between steel plate by welding is reliable.
Conventional bolt medicine ball node is replaced with hollow ball node by the present invention, and hollow ball can utilize existing finished product welded spherical node steel ball used.Hollow steel ball is welded by two finished product hemisphere.Cushion block according to sphere size and rod member installation site, mill out in side with spherome surface coincide sphere, and by this side and spheroid firm welding tight.The end face of cushion block opposite side and rod end connector is bolted, and the other end of described rod end connector and the end face of pipe rod member are by being welded to connect closely.Wherein, pipe rod member and connector complete and weld in batch production prefabrication process, and make rod member-connector assembly, the bottom plate of rod end connector is provided with bolt hole as required; Cushion block also machine in the factory according to size and with spheroid firm welding in advance, make spheroid-cushion block composite member.Rod member during installation-connector assembly, by the screw of rod end connector bottom plate, is tightened together with spheroid-cushion block composite member by bolt.On spheroid-cushion block composite member upper surface, connect the bottom plate of short column, pipe rod member shares a center line.
Beneficial effect of the present invention: (1) all component can be prefabricated in the factory, and site construction technology is simple, convenient, on-the-spot welding, the theory of composite green construction.
(2) bolt tightening process is easy to observe, monitoring, to effectively prevent in bolt joint because the vacation that exists in the construction caused of sleeve is stubborn, super stubborn.In node amount is larger, large span space rack field more can manifest its advantage.
(3) this node is owing to adopting 120 degree of high-strength bolts distributed, and respectively greatly improves to bending resistance torsional strength compared to bolted spherical node.And owing to adopting hollow ball node, without the need to processing separately spheroid, practical simple, be that steel using amount is less at the larger-size node of employing, conservative control cost, has larger promotion potential.
Accompanying drawing explanation
Fig. 1 is schematic three dimensional views of the present invention;
Fig. 2 is generalized section of the present invention;
Fig. 3 is cushion block plane side three-dimensional structure schematic diagram in the present invention;
Fig. 4 is cushion block curved surface side three-dimensional structure schematic diagram in the present invention;
Fig. 5 is king-rod end connection three-dimensional structure schematic diagram of the present invention;
Fig. 6 is the rod end connector sectional drawing that midriff steel plate of the present invention becomes 120 degree of angles layouts.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated.
As shown in figures 1 to 6, a kind of Elements of Space Grid Truss bolt connects hollow ball node, comprises hollow steel ball 5, bolt 3, rod end connector 2, cushion block 4 and pipe rod member 1; Described hollow steel ball 5 is welded by two finished product hemisphere.Cushion block 4, according to hollow steel ball sphere size and rod member installation site, mills out the sphere with hollow steel ball 5 surface profiles in side, and by this side and hollow steel ball 5 firm welding tight.Cushion block 4 opposite side is connected by bolt 3 with the end face of rod end connector 2, and the other end of described rod end connector 2 and the end face of pipe rod member 1 are by being welded to connect closely; Described cushion block 4 end face, rod end connector 2 two end faces identical with the face size of pipe rod member 1, and their axis is point-blank.
Implement the basic step of the present invention's design and construction:
1) design of rod end connector
(1) sectional dimension of pipe rod member is first determined, to determine the size of rod end connector upper and lower end parts plate;
(2) based on rod end connector lower end plate size, take center line as axle, when size is less, adopt angle to be between any two the layout of the steel plate of 120 degree, and in conjunction with desirable strength determination steel plate thickness;
(3) in lower end plate gap, symmetry reasonably arranges bolt hole;
2) design of cushion block
(1) first determine the sectional dimension of pipe rod member, cushion block face size is identical with it
(2) side section contacted with hollow ball at cushion block mills out the curved surface fitted like a glove with spheroid curved surface
(3) corresponding with bolt hole position, rod end connector end plate place on cushion block place arranges bolt hole, and joins screw thread
3) installation of the compound node of Elements of Space Grid Truss
Use hollow ball node finished product, be prefabricated in the factory cushion block, and on this cushion block end face, rational position is set and with rod end connector bottom plate upper bolt hole bolt hole one to one, bolt can be passed through in rod end connector one end and cushion block, tighten together in end, cushion block welds closely with spheroid, makes cushion block-spheroid assembly.The rod end connector other end and pipe rod member, by being welded to connect closely.Wherein, pipe rod member and rod end connector complete and weld in batch production prefabrication process, make one rod member-joint pin assembly, and the bottom plate of connector as required, is provided with three screws, and they are roughly arranged in equilateral triangle between any two.Only by the screw of rod member-joint pin assembly by rod end connector bottom plate, need tighten together with cushion block-spheroid composite member with bolt during site operation.Wherein pipe rod member, rod end connector, cushion block and ball centre line need to keep overlapping.
Below by reference to the accompanying drawings embodiments of the present invention are described in detail, but the present invention is not limited to described embodiment.For those of ordinary skill in the art, in the scope of principle of the present invention and technological thought, multiple change, amendment, replacement and distortion are carried out to these embodiments and still falls within the scope of protection of the present invention.
Claims (3)
1. Elements of Space Grid Truss bolt connects a hollow ball node, it is characterized in that: comprise hollow steel ball, cushion block, bolt, rod end connector and pipe rod member;
Described hollow steel ball is welded by two finished product hemisphere, described cushion block mills out the sphere with hollow steel ball surface profiles in side, and by this side and hollow steel ball firm welding tight, the end face of cushion block opposite side and rod end connector is bolted, and the other end of described rod end connector and the end face of pipe rod member are by being welded to connect closely;
Described cushion block end face, rod end connector two end faces identical with the face size of pipe rod member, and their axis is point-blank.
2. a kind of Elements of Space Grid Truss bolt according to claim 1 connects hollow ball node, it is characterized in that: described bolt adopts 10.9s level high-strength bolt.
3. a kind of Elements of Space Grid Truss bolt according to claim 1 connects hollow ball node, it is characterized in that: the main part in described rod end connector is the connection web of the steel plate composition of two twenty percent 120 degree, by being welded to connect between steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875373.8A CN105386524A (en) | 2015-12-03 | 2015-12-03 | Bolt connecting hollow spherical joint of steel grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510875373.8A CN105386524A (en) | 2015-12-03 | 2015-12-03 | Bolt connecting hollow spherical joint of steel grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105386524A true CN105386524A (en) | 2016-03-09 |
Family
ID=55419254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510875373.8A Pending CN105386524A (en) | 2015-12-03 | 2015-12-03 | Bolt connecting hollow spherical joint of steel grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105386524A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986620A (en) * | 2016-07-01 | 2016-10-05 | 天津大学 | Aluminum alloy welding hollow sphere node |
| CN106013468A (en) * | 2016-07-01 | 2016-10-12 | 天津大学 | Adapter for aluminum alloy welded hollow sphere joint |
| CN106638945A (en) * | 2016-11-22 | 2017-05-10 | 浙江东南网架股份有限公司 | Six-rod-tetrahedral-module-unit assembled cover-plate-and-bolt-connected sphere joint and assembling method thereof |
| CN111877551A (en) * | 2020-06-17 | 2020-11-03 | 东南大学 | Bolt connecting structure and method between cast steel node and connecting member of cast steel node |
| CN111889974A (en) * | 2020-07-28 | 2020-11-06 | 上海建工（江苏）钢结构有限公司 | Manufacturing process of pressure ring of bowl-shaped roof steel structure |
| CN112323976A (en) * | 2020-10-30 | 2021-02-05 | 北京工业大学 | Novel large-span repairable assembly type node and assembly method |
| CN113090469A (en) * | 2021-04-26 | 2021-07-09 | 中冶西北工程技术有限公司 | Connector for lattice type wind power tower |
| CN114250863A (en) * | 2021-12-24 | 2022-03-29 | 常州工学院 | Welded hollow ball joint connected by steel inserting plates |
| CN114575457A (en) * | 2022-02-22 | 2022-06-03 | 王凤林 | Steel house assembling connecting part |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201832U (en) * | 1987-02-05 | 1987-11-04 | 合肥工业大学 | Hollow bolt ball node |
| DE20111294U1 (en) * | 2001-07-07 | 2002-01-17 | Schomberg Klaus | Connection, fastening and mounting parts for components |
| CN101591937A (en) * | 2009-06-12 | 2009-12-02 | 邓世瑶 | Improved grid node bolt sphere |
| CN201614666U (en) * | 2010-03-09 | 2010-10-27 | 浙江东南网架股份有限公司 | Three-way stressed bolt ball joint |
| CN202023258U (en) * | 2011-03-30 | 2011-11-02 | 中国民航大学 | Bolt-sphere connecting node of bamboo structure |
| CN204435566U (en) * | 2015-02-09 | 2015-07-01 | 开封安利达金属工程有限公司 | A kind of bolted spherical node Elements of Space Grid Truss syndeton |
| CN205224290U (en) * | 2015-12-03 | 2016-05-11 | 东南大学 | Steel mesh frame bolted connection clean shot node |
-
2015
- 2015-12-03 CN CN201510875373.8A patent/CN105386524A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87201832U (en) * | 1987-02-05 | 1987-11-04 | 合肥工业大学 | Hollow bolt ball node |
| DE20111294U1 (en) * | 2001-07-07 | 2002-01-17 | Schomberg Klaus | Connection, fastening and mounting parts for components |
| CN101591937A (en) * | 2009-06-12 | 2009-12-02 | 邓世瑶 | Improved grid node bolt sphere |
| CN201614666U (en) * | 2010-03-09 | 2010-10-27 | 浙江东南网架股份有限公司 | Three-way stressed bolt ball joint |
| CN202023258U (en) * | 2011-03-30 | 2011-11-02 | 中国民航大学 | Bolt-sphere connecting node of bamboo structure |
| CN204435566U (en) * | 2015-02-09 | 2015-07-01 | 开封安利达金属工程有限公司 | A kind of bolted spherical node Elements of Space Grid Truss syndeton |
| CN205224290U (en) * | 2015-12-03 | 2016-05-11 | 东南大学 | Steel mesh frame bolted connection clean shot node |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105986620A (en) * | 2016-07-01 | 2016-10-05 | 天津大学 | Aluminum alloy welding hollow sphere node |
| CN106013468A (en) * | 2016-07-01 | 2016-10-12 | 天津大学 | Adapter for aluminum alloy welded hollow sphere joint |
| CN106638945A (en) * | 2016-11-22 | 2017-05-10 | 浙江东南网架股份有限公司 | Six-rod-tetrahedral-module-unit assembled cover-plate-and-bolt-connected sphere joint and assembling method thereof |
| CN111877551A (en) * | 2020-06-17 | 2020-11-03 | 东南大学 | Bolt connecting structure and method between cast steel node and connecting member of cast steel node |
| CN111877551B (en) * | 2020-06-17 | 2021-03-23 | 东南大学 | Bolt connecting structure and method between cast steel node and connecting member of cast steel node |
| CN111889974A (en) * | 2020-07-28 | 2020-11-06 | 上海建工（江苏）钢结构有限公司 | Manufacturing process of pressure ring of bowl-shaped roof steel structure |
| CN112323976A (en) * | 2020-10-30 | 2021-02-05 | 北京工业大学 | Novel large-span repairable assembly type node and assembly method |
| CN113090469A (en) * | 2021-04-26 | 2021-07-09 | 中冶西北工程技术有限公司 | Connector for lattice type wind power tower |
| CN114250863A (en) * | 2021-12-24 | 2022-03-29 | 常州工学院 | Welded hollow ball joint connected by steel inserting plates |
| CN114575457A (en) * | 2022-02-22 | 2022-06-03 | 王凤林 | Steel house assembling connecting part |
| CN114575457B (en) * | 2022-02-22 | 2024-01-05 | 广东怀胜建设工程有限公司 | Connecting component is assembled in steel house |
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| PB01 | Publication | ||
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Application publication date: 20160309 |