CN113882506B - Assembly type truss beam steel beam barrel structure system connected through full bolts - Google Patents
Assembly type truss beam steel beam barrel structure system connected through full bolts Download PDFInfo
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- CN113882506B CN113882506B CN202111235030.7A CN202111235030A CN113882506B CN 113882506 B CN113882506 B CN 113882506B CN 202111235030 A CN202111235030 A CN 202111235030A CN 113882506 B CN113882506 B CN 113882506B
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
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- 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
- E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
- E04B2001/1918—Connecting nodes specially adapted therefor with connecting nodes having flat radial connecting surfaces
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1924—Struts specially adapted therefor
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1957—Details of connections between nodes and struts
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1957—Details of connections between nodes and struts
- E04B2001/196—Screw connections with axis parallel to the main axis of the strut
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- 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
- E04B2001/5875—Connections for building structures in general of bar-shaped building elements using exterior clamping plates or shells
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- Architecture (AREA)
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- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses an assembly type truss girder steel beam tube structure system adopting all-bolt connection, which comprises a truss girder unit, an upright post unit and a node unit; the truss girder unit comprises an upper chord member, a lower chord member and a web member; the upper chord and the lower chord are connected together through web members, and corresponding mounting holes are formed in the two ends of the upper chord and the lower chord; the node unit comprises a middle node column and a middle node plate; the middle node plates are fixed at the upper end and the lower end of the middle node column; the upright column unit comprises connecting columns and side node columns which are alternately arranged; truss girder units are connected between the side node columns or between the side node columns and the middle node columns to form a truss layer; the side node column is provided with side node plates at the upper end and the lower end, the connecting plates are arranged at the upper end and the lower end, and the connecting plates are matched with the side node plates.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to an assembled truss girder steel beam barrel structure system adopting full-bolt connection.
Background
At present, the assembled steel structure is mainly connected by bolt welding, but the welding naturally has some defects, such as: the environment is not green enough, and the damage to constructors is large; the welding seam is easy to corrode, and the quality is not easy to control; which is disadvantageous for further improvement of the assembly rate, and the like. Therefore, where possible, fabricated steel structures are more recommended to be joined using bolts, which is one of them; secondly, the steel material has excellent material performance and belongs to a ductile material, so compared with a steel-concrete structure, the steel material has a smaller beam-column section and better mechanical property, can enable the space utilization rate of a building to be higher, and has the problems of difficult transportation and difficult construction of a large-span steel structure.
Meanwhile, when the existing assembled steel structure bolt assembling steel structure is used, the overall structure is complex, the bolts need to be assembled at high altitude too much, the bolts need to be installed one by one, the workload is high, the operation difficulty is high, the site construction is difficult, troubles are brought to constructors, and therefore the assembled truss girder steel beam tube structure system adopting full bolt connection is necessary to research.
Disclosure of Invention
Aiming at the defects and problems of the existing equipment, the invention provides an assembly type truss girder steel beam barrel structure system adopting full bolt connection, which effectively solves the problems of difficult transportation, great construction difficulty and large work load at high altitude of the existing steel truss in the existing equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows: an assembly type truss girder steel beam barrel structure system adopting full bolt connection comprises a truss girder unit, a stand column unit and a node unit; the truss girder unit comprises an upper chord member, a lower chord member and a web member; the upper chord and the lower chord are connected together through web members, and corresponding mounting holes are formed in the two ends of the upper chord and the lower chord; the node unit comprises a middle node column and a middle node plate; the middle gusset plates are fixed at the upper end and the lower end of the middle gusset column; an assembly hole matched with the mounting hole is formed in the middle gusset plate, so that the end parts of the upper chord and the lower chord can be fixed on the middle gusset plate through bolts; the upright column unit comprises connecting columns and side node columns which are alternately arranged; a truss girder unit is connected between the side node columns or the middle node columns to form a truss layer; the upper end and the lower end of the side node column are provided with side node plates, the upper end and the lower end of the connecting column are provided with connecting plates, the connecting plates are matched with the side node plates, connecting holes matched with the mounting holes are formed in the connecting plates and the side node plates, and the connecting plates, the side node plates and the end portions of the upper chord member or the lower chord member are fixedly connected together through the same bolt.
Furthermore, the connecting column comprises an upper connecting column and a lower connecting column which can be connected together in a butt joint mode, wherein a connecting plate is arranged at the upper end of the upper connecting column, a butt joint plate is arranged at the lower end of the upper connecting column, a connecting plate is arranged at the lower end of the lower connecting column, a butt joint plate is arranged at the upper end of the lower connecting column, the two butt joint plates are matched and provided with corresponding through holes.
Further, a bolt fixing frame is arranged on the upper connecting column and comprises an upper fixing sleeve, a jackscrew and a connecting bolt; the upper fixing sleeve is sleeved on the upper connecting column in a matching manner, and a jackscrew penetrating through the side wall of the upper fixing sleeve is arranged on the side surface of the upper fixing sleeve; the lower end part of the upper fixed sleeve is uniformly provided with lug plates, and the connecting bolts are fixed on the lug plates and are in one-to-one correspondence with the through holes on the butt joint plates.
Further, a nut fixing frame is arranged on the lower connecting column and comprises a lower fixing sleeve, a jackscrew, a sleeve and a nut; the lower fixing sleeve is sleeved on the lower connecting column, a jackscrew penetrating through the side wall of the lower fixing sleeve is arranged on the side face of the lower fixing sleeve, lug plates are uniformly distributed on the upper end portion of the lower fixing sleeve, sleeves corresponding to the through holes in a one-to-one mode are movably sleeved on the lug plates, nuts are arranged on the end portions of the sleeves, and the outer diameter of the nuts is larger than that of the through holes.
Further, the truss girder unit comprises L-shaped chords and L-shaped web members; the two chords are spliced and fixed together through bolts, and the middle part of the upper chord and the lower chord are provided with webs; the web members are correspondingly fixed on two sides of the web plate through bolts.
Furthermore, the mounting holes are provided with two groups and symmetrically arranged on two sides of the web plate.
Furthermore, corresponding connecting holes and fixing holes are formed in the connecting plates and the edge gusset plates, the fixing holes are used for fixedly assembling the connecting plates and the edge gusset plates together, and the connecting holes are used for assembling the upper chord and the lower chord.
Furthermore, limit node post and well node post are the square column structure, and when last chord member and lower chord member after the assembly, both tip side tops touch on the plane of square column.
The invention has the beneficial effects that: the invention provides an assembled truss structure assembled by full bolts, aiming at the defects in the existing structure, and the assembled truss structure comprises truss girder units, upright post units and node units, wherein the truss girder units are used as basic connecting units, L-shaped angle steel is used as a basic forming unit, an upper chord member and a lower chord member are formed in a mode of splicing two by two, the upper chord member and the lower chord member are both of T-shaped structures, the middle parts of the upper chord member and the lower chord member are provided with web plate structures, mounting areas are provided for the L-shaped web members, and the web members are mounted on the web plates through bolts.
The node unit is used as an intermediate structure for connecting all truss girders and is provided with a middle node plate and a middle node column, the middle node plate extends outwards from the middle node column and forms an installation area, installation holes are formed in two sides of a web plate of an upper chord and a lower chord, the distance between the upper chord and the lower chord is the same as that between the two middle node plates, and the upper chord and the lower chord are installed on the middle node plates through bolts through the installation holes, so that a truss layer structure with a continuous structure is formed.
The upright column units are distributed in the peripheral area, are spaced at equal intervals in pairs, and comprise connecting columns and side node columns, the height of each side node column is the same as that of the middle node column, and the side node plates and the middle node plates of the upright column units are mutually corresponding and connected together through truss girders; the lower part of the side node column is provided with a connecting column.
In the specific implementation, the connecting columns comprise an upper connecting column and a lower connecting column which can be mutually butted, so that the upper connecting column, the lower connecting column, the side node columns and the truss layer structure form a basic unit for integral assembly, and the workload of high-altitude operation is greatly reduced.
Therefore, the invention can be assembled by all bolts, is convenient for factory customization and modular construction, is easy to assemble on site, has a structure which is convenient to disassemble, recover and assemble, can be repeatedly used, is formed by connecting all the bolts, has no welding operation, can effectively reduce the harm of dust, toxic gas, high-frequency magnetic field and the like generated by the welding operation, and ensures that the whole operation process is more environment-friendly; meanwhile, the problem that welding seams are easy to rust is avoided, the construction quality is more controllable, the construction period is short, full-bolt connection is adopted, construction and assembly are rapid and convenient, the assembly rate of the assembly type steel structure building is improved, a new choice is provided for some engineering projects needing to be rapidly completed and some emergency engineering projects, and the application range is wide.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a lattice layer unit.
Fig. 3 is an exploded view of fig. 2.
Fig. 4 is a schematic structural view of a truss girder unit.
Fig. 5 is an exploded view of fig. 4.
Fig. 6 is a schematic perspective view of the present invention.
Fig. 7 is a top view of fig. 6.
Fig. 8 is a front view of fig. 6.
Fig. 9 is a schematic structural view of a bolt fixing frame and a nut fixing frame.
Fig. 10 is a combined state diagram of a bolt fixing frame and a nut fixing frame.
Fig. 11 is a middle state view of the bolt fixing frame and the nut fixing frame.
The reference numbers in the figures are: 1 is the limit node post, 11 is the limit node board, 2 is the spliced pole, 21 is the upper connection post, 22 is the lower connection post, 23 is the connecting plate, 24 is the butt joint board, 3 is the well node post, 31 is the well node board, 4 is the truss girder unit, 41 is the web, 42 is the web, 43 is the upper chord, 44 is the lower chord, 5 is the bolt mount, 51 is the upper fixed cover, 52 is the jackscrew, 53 is connecting bolt, 6 is the nut mount, 61 is the lower fixed cover, 62 is the sleeve, 63 is the lower nut, 64 is spacer sleeve or upper nut.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example 1: this embodiment aims at providing an adopt full bolted connection's assembled truss girder steel bundle section of thick bamboo structure system, and mainly used assembled truss structure is to adopting the bolt welding to connect in the existing equipment more, and the detachable degree of whole assembly is low, and some parts damage unable change, and whole assembly cost of transportation is high, the construction difficulty, and based on this, this embodiment provides an adopt full bolted connection's assembled truss girder steel bundle section of thick bamboo structure system.
As shown in fig. 1, an assembled truss girder steel beam tube structure system adopting full bolt connection comprises a truss girder unit 4, a column unit and a node unit; the truss girder units 4 are used as connection structures, are distributed among the node units, and connect each node unit with the upright column unit, and the upright column units are distributed on the periphery and are positioned at the same elevation.
In particular implementation, the truss girder unit 4 includes L-shaped chords and L-shaped web members; the two chords are spliced and fixed together through bolts, and an upper chord 43 and a lower chord 44 with a web plate 42 in the middle are arranged; the web members 41 are correspondingly fixed on two sides of the web plate 42 through bolts, and the web members 41 are distributed between two parallel chord members in an end-to-end staggered manner; truss girder unit 4 is as essential linkage unit, it uses the angle steel of L shape as basic constitutional unit, form upper chord 43 and lower chord 44 through two liang of modes of splicing, upper chord 43 and lower chord 44 are T shape structure, and its middle part has the web 42 structure, and for the web member of L shape provides the installation region, install the web member on the web through the bolt, thereby formed the full bolt truss girder of no welding, truss girder gathers in the concatenation process, can realize extensive mechanical properties requirement through adjusting member size, the position of bolt hole, quantity.
In specific implementation, the truss girder unit 4 includes an upper chord 43, a lower chord 44, and a web member 41; upper chord 43 and lower chord 44 parallel arrangement, it links together through web member 41 between the two, is provided with the mounting hole that corresponds at the both ends of upper chord 44 and lower chord 43, and the mounting hole is provided with two sets ofly to the symmetry sets up the both sides at web 42, has the space between upper chord, the lower chord, can integrate pipeline such as installation building wind-water electricity, and this embodiment truss roof beam naturally belongs to an integrated truss for building load-bearing structure and equipment pipeline system coordinate more uniformly.
The node unit comprises a middle node column 3 and a middle node plate 31; the middle node plates 31 are fixed at the upper end and the lower end of the middle node column 3; and the middle gusset plate 31 is provided with an assembly hole adapted to the mounting hole, so that the end parts of the upper chord 43 and the lower chord 44 can be fixed on the middle gusset plate 31 by bolts; each truss girder unit connection has been reduced holistic length to the node unit in this embodiment, is convenient for transport and installation, can set up triangle node or cross node column structure as required when concrete implementation.
The node unit is used as an intermediate structure for connecting each truss girder and is provided with a middle node plate 31 and a middle node column 3, the middle node plate 31 extends outwards from the middle node column 3 and forms a mounting area, mounting holes are formed in two sides of a web plate of an upper chord and a lower chord, the distance between the upper chord and the lower chord is the same as that between the two middle node plates, and the upper chord and the lower chord are mounted on the middle node plates through bolts through the mounting holes, so that a truss layer structure with a continuous structure is formed.
The upright column unit comprises connecting columns 2 and side node columns 1 which are alternately arranged; a truss girder unit is connected between the side node columns 1 or the middle node columns 3 to form a truss layer; edge node column 1's upper and lower both ends are provided with edge node plate 11, and the upper and lower both ends of spliced pole 2 are provided with connecting plate 23, connecting plate 23 with edge node plate 11 adaptation to be provided with on connecting plate 23 and edge node plate 11 with the connecting hole of mounting hole adaptation makes connecting plate, edge node plate and the tip of upper chord or lower chord pass through same bolt fixed connection together.
The connecting bolt can adopt a friction type high-strength bolt in the embodiment, the structural safety margin is higher, when the contact surface slides, the structure can still provide bearing capacity by means of direct extrusion between the bolt rod and the steel plate hole wall, so that the structure has certain energy consumption storage, the anti-seismic structure is facilitated, each contact surface of the spliced truss steel can be processed by adopting a sand blasting or shot blasting process, and the friction surface at the node position is ensured to provide enough friction force.
In the production and manufacturing process of the embodiment, the standard component is used as a basic unit, each modular rod piece, the link node and the connecting column are prefabricated in a factory, and the size, the type and the position of the bolt and the bolt hole on each component can be adjusted according to actual requirements. When the gap between the bolt and the bolt hole is larger, the gasket is installed in the bolt installation, and the effective friction force between the contact surfaces is ensured; bolt installation is carried out after transportation to scene, accomplish assembling of overall structure, compare with traditional steel construction building, the prefabricated production of an adoption all-bolt connection's assembled truss beam steel beam tube structure system that this embodiment provided, it is convenient to transport, the construction is simple, the quality is easily controlled, can dismantle the recovery, therefore, the clothes hanger is strong in practicability, wide applicability, the factory customization of being convenient for, the modularization construction, and easily field assembly, and can be according to concrete design construction requirement, to the size of each component of structure system, the distribution etc. of node are adjusted, the structure is nimble practical.
In conclusion, the assembled truss girder steel beam tube structure system connected by the full bolts is a novel assembled steel structure system which can be customized and produced in a modularized mode, is convenient to transport and construct, improves the assembling efficiency of the assembled steel structure building, has the advantages of being environment-friendly, safe, reliable, recyclable and the like, and provides a new direction for the development of the assembled steel structure building structure system.
Example 2: this example is substantially the same as example 1, except that: the present embodiment further illustrates the structure of the connecting column 2.
The connecting column 2 in this embodiment comprises an upper connecting column 21 and a lower connecting column 22 which can be connected together in a butt joint manner, wherein the upper end of the upper connecting column 21 is provided with a connecting plate 23, the lower end of the upper connecting column is provided with a butt joint plate 24, the lower end of the lower connecting column 22 is provided with a connecting plate, the upper end of the lower connecting column is provided with the butt joint plate 24, the two butt joint plates are matched and provided with corresponding through holes.
In the embodiment, the connecting columns are of a split structure, the upper connecting column 21 and the lower connecting column 22 are respectively connected with the side node columns 1 during specific construction, and the truss girder units are assembled and connected with the middle node columns, so that a truss layer unit can be formed among all the components, and the truss layer unit is used as a unit to gradually lift the height to form the steel bundle cylinder.
In the concrete assembling construction of the embodiment, firstly, the L-shaped chords are respectively assembled into the upper chord and the lower chord in a butt joint mode, the L-shaped web members are assembled on the upper chord and the lower chord to form the truss girder unit, the two ends of the upper chord and the lower chord are correspondingly assembled on the middle node column, the end parts of the peripheral chords are in butt joint with the edge node plates and the connecting plates, and after the holes on the three plates correspond to each other, the three plates are fixedly connected through the same bolt, so that the truss layer unit with a stable structure can be formed.
Example 3: this example is substantially the same as example 1, except that: in the embodiment, in the face of the problems that the number of connecting bolts between the upper connecting column and the lower connecting column is too much, and many connecting bolts are in an overhead working state, the construction is difficult, and the workload is large, the bolt fixing frame and the nut fixing frame are arranged to solve the problem that the bolt construction is difficult in the overhead working process.
In a specific structure, the bolt fixing frame 5 is arranged on the upper connecting column, and the bolt fixing frame 5 comprises an upper fixing sleeve 51, a jackscrew 52 and a connecting bolt 53; the upper fixing sleeve 51 is sleeved on the upper connecting column 21 in a matching way, the side surface of the upper fixing sleeve is provided with a jackscrew 52 penetrating through the side wall of the upper fixing sleeve, the position of the upper fixing sleeve 21 can be fixed through the jackscrew 52, and the position of the upper fixing sleeve 51 can be adjusted if necessary; ear plates are uniformly distributed at the lower end part of the upper fixing sleeve 51, and the connecting bolts 53 are fixed on the ear plates and are in one-to-one correspondence with the through holes on the butt joint plates.
Aiming at the problem of bolt connection between an upper connecting column and a lower connecting column, the connecting bolts are fixedly assembled together in the embodiment and are sleeved on the connecting columns in a matching mode, the connecting columns are of a square column structure, an upper fixing sleeve 51 can only slide along the connecting columns in a directional mode, connecting bolts 53 are enabled to correspond to through holes in a butt plate 24 all the time, full-bolt butt joint can be achieved easily, constructors do not need to carry the connecting bolts, all the connecting bolts 53 are temporarily fixed on the connecting columns through the upper fixing sleeve 51 and are fixed in positions through jackscrews 52, after the butt plate is completely corresponding, jackscrews are released, all the connecting bolts 53 can be sleeved in the through holes in a disposable mode, the traditional mode that the connecting bolts are installed one by one is compared, the difficulty of high-altitude operation of the connecting bolts is greatly reduced, and the construction efficiency is improved.
Meanwhile, the lower connecting column 22 is provided with a nut fixing frame 6, and the nut fixing frame 6 comprises a lower fixing sleeve 61, a jackscrew, a sleeve 62 and a nut; the lower fixing sleeve 61 is sleeved on the lower connecting column 22, a jackscrew penetrating through the side wall of the lower fixing sleeve is arranged on the side face of the lower fixing sleeve, lug plates are uniformly distributed on the upper end portion of the lower fixing sleeve 61, sleeves 62 corresponding to the through holes in a one-to-one mode are movably sleeved on the lug plates, nuts are arranged on the end portions of the sleeves 62, the outer diameter of each nut is larger than that of each through hole, a blocking sleeve or an upper nut 64 can be arranged on the upper portion of each sleeve in the implementation process, and a lower nut 63 is arranged on the lower portion of each sleeve.
After the connecting bolt 53 is assembled, the nuts need to be connected to the connecting bolt one by one, the traditional construction process includes that workers carry the nuts and assemble the nuts one by one, a constructor needs to carry a large number of nuts for assembly, the existing assembly mode is a single nut, the connection strength is low, the embodiment can adopt a mode that the upper portion of the sleeve is the retaining sleeve and the lower portion of the sleeve is the lower nut 63, the connecting bolt can enter the retaining sleeve and the sleeve and is in threaded connection with the nuts on the lower portion, the sleeves can lift along the fixed sleeves, the nuts can be screwed one by one, manual nut carrying is not needed, the high-altitude construction difficulty is reduced, the lower nut 63 on the lower portion in the embodiment mainly provides a screwing position for an electric tool in a main mode, and the lower portion of the connecting bolt is located in the sleeve.
In the prior art, if two nuts are applied, the construction amount is too large for the prior art, based on this, the present embodiment is to provide the nut fixing frame 6 integrally assembled on the lower connecting column, provide the lower fixing frame reliably lifting up and down on the nut fixing frame 6, and provide the sleeve 62 capable of freely lifting up and down on the basis of the lower fixing frame, and provide the nuts at both ends of the sleeve 62, firstly move the nuts integrally to the bottom of the connecting bolts through the lower fixing frame, firstly screw one of the nuts (preferably screw the nut at the bottom by an electric tool, and provide a stop on the upper part of the nut at the bottom to position the tool bit), because the sleeve structure is a hollow structure, the connecting bolts can enter therein, and freely lift up the height, the nuts can be screwed on the connecting bolts one by one in a certain range under the condition that the lower fixing frame is temporarily fixed, and then the height is gradually lifted up, screwing the lower nut on the connecting bolt; double nut synchronous connection is on connecting bolt in this embodiment, and joint strength is big, has locking function of moving, and truss structure is more firm.
Example 4: this example is substantially the same as example 1, except that: the present embodiment further describes the structure of the connecting plate 23 and the edge gusset plate 11.
In this embodiment, the connecting plate 23 and the edge gusset plate 11 are provided with corresponding connecting holes and fixing holes, the fixing holes are used for fixedly assembling the connecting plate and the edge gusset plate together, and the connecting holes are used for assembling the upper chord and the lower chord; the side node columns and the middle node column are of square column structures, and when the upper chord and the lower chord are assembled, the side faces of the end parts of the upper chord and the lower chord are abutted to the plane of the square column.
In the embodiment, the connecting plate can be fixed together with the edge node plate in advance through the fixing holes, the connecting holes correspond to each other, the operation is simpler, and the assembly is convenient.
Claims (5)
1. The utility model provides an adopt full bolted connection's assembled truss girder steel beam tube structure system which characterized in that: the truss girder unit, the upright post unit and the node unit are included; the truss girder unit comprises an upper chord member, a lower chord member and a web member; the upper chord and the lower chord are connected together through web members, and corresponding mounting holes are formed in the two ends of the upper chord and the lower chord; the node unit comprises a middle node column and a middle node plate; the middle gusset plates are fixed at the upper end and the lower end of the middle gusset column; the middle gusset plate is provided with an assembly hole matched with the mounting hole, so that the end parts of the upper chord and the lower chord can be fixed on the middle gusset plate through bolts; the upright column unit comprises connecting columns and side node columns which are alternately arranged; truss girder units are connected between the side node columns or between the side node columns and the middle node columns to form a truss layer; the upper end and the lower end of the side node column are provided with side node plates, the upper end and the lower end of the connecting column are provided with connecting plates, the connecting plates are matched with the side node plates, and connecting holes matched with the mounting holes are formed in the connecting plates and the side node plates, so that the connecting plates, the side node plates and the end parts of the upper chord or the lower chord are fixedly connected together through the same bolt;
the connecting columns comprise an upper connecting column and a lower connecting column which can be connected together in a butt joint mode, wherein the upper end of the upper connecting column is provided with a connecting plate, the lower end of the upper connecting column is provided with a butt joint plate, the lower end of the lower connecting column is provided with a connecting plate, the upper end of the lower connecting column is provided with a butt joint plate, the two butt joint plates are matched and provided with corresponding through holes;
the upper connecting column is provided with a bolt fixing frame which comprises an upper fixing sleeve, a jackscrew and a connecting bolt; the upper fixing sleeve is sleeved on the upper connecting column in a matching manner, and a jackscrew penetrating through the side wall of the upper fixing sleeve is arranged on the side surface of the upper fixing sleeve; the lower end part of the upper fixing sleeve is uniformly provided with lug plates, and the connecting bolts are fixed on the lug plates and correspond to the through holes on the butt joint plate one by one;
the lower connecting column is provided with a nut fixing frame which comprises a lower fixing sleeve, a jackscrew, a sleeve and a nut; the lower fixing sleeve is sleeved on the lower connecting column, a jackscrew penetrating through the side wall of the lower fixing sleeve is arranged on the side face of the lower fixing sleeve, lug plates are uniformly distributed on the upper end portion of the lower fixing sleeve, sleeves corresponding to the through holes one by one are movably sleeved on the lug plates, nuts are arranged on the end portions of the sleeves, and the outer diameters of the nuts are larger than those of the through holes.
2. The fabricated truss beam steel beam tube structure system adopting full bolt connection as claimed in claim 1, wherein: the truss girder unit comprises an L-shaped chord member and an L-shaped web member; the two chords are spliced and fixed together through bolts, and the middle part of the upper chord and the lower chord are provided with webs; the web members are correspondingly fixed on two sides of the web plate through bolts.
3. The fabricated truss beam steel beam tube structure system adopting full bolt connection as claimed in claim 2, wherein: the mounting holes are arranged in two groups and are symmetrically arranged on two sides of the web plate.
4. The fabricated truss beam steel beam tube structure system adopting full bolt connection as claimed in claim 1, wherein: the connecting plate and the side gusset plate are provided with corresponding connecting holes and fixing holes, the fixing holes are used for fixedly assembling the connecting plate and the side gusset plate together, and the connecting holes are used for assembling the upper chord and the lower chord.
5. The fabricated truss beam steel beam tube structure system adopting full bolt connection as claimed in claim 1, wherein: and the side node columns and the middle node column are of square column structures, and when the upper chord and the lower chord are assembled, the side faces of the end parts of the upper chord and the lower chord are abutted to the plane of the square column.
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| CN114411950A (en) * | 2022-02-17 | 2022-04-29 | 文浩丞 | Steel structure supporting truss with anti-torsion function |
| CN116378305B (en) * | 2023-06-06 | 2023-08-11 | 淄博金京建材有限公司 | Shock-resistant steel structure truss |
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