CN221143281U - Tensioning device for steel structure - Google Patents
Tensioning device for steel structure Download PDFInfo
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- CN221143281U CN221143281U CN202323166013.XU CN202323166013U CN221143281U CN 221143281 U CN221143281 U CN 221143281U CN 202323166013 U CN202323166013 U CN 202323166013U CN 221143281 U CN221143281 U CN 221143281U
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- plate
- lock catch
- steel
- ear
- tensioning
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 53
- 239000010959 steel Substances 0.000 title claims abstract description 53
- 238000005192 partition Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model belongs to the technical field of steel structures, and particularly discloses a tensioning device for a steel structure, which comprises a node connecting body A, a tensioning lock catch body B and a pull rod member C; the node connector A comprises an ear plate, an ear plate attaching plate, a component attaching plate and a pin shaft; two sides of each ear plate are provided with an ear plate sticking board, two component sticking boards are arranged between the two ear plate sticking boards, and the ear plates, the ear plate sticking boards and the component sticking boards are all arranged on the pin shaft; the pull rod member C comprises two steel plate strips with the same width and the same thickness; one end of the steel plate belt is provided with a bolt hole and is arranged between the two component flitch plates, and the other end of the steel plate belt is welded on the tensioning lock catch body B; the tensioning lock catch body B comprises two lock catch bases and a high-strength large hexagon head bolt group, and a gap is reserved between the two lock catch bases. The utility model can improve the integral rigidity of the structure, occupies less resources, has high structural strength and prolongs the integral service life of the structure.
Description
Technical Field
The utility model belongs to the technical field of steel structures, and particularly relates to a tensioning device for a steel structure, which is simple to operate and convenient to construct and install.
Background
The steel structure is mainly composed of steel materials, is one of main building structure types, and mainly comprises steel beams, steel columns, steel trusses and other components made of steel sections, steel plates and the like, and all the components or parts are connected by welding seams, bolts or rivets. Because the self weight is lighter, and the construction is simple and convenient, the method is widely applied to the fields of large-scale factory buildings, venues, bridges, super high-rise and the like.
The steel has high strength, so that the steel structural member is widely applied to the building industry, and particularly is frequently used in large-span or ultrahigh buildings. The overall stability and longitudinal stiffness between the columns plays the most important role in safety. At present, for the factory building, because of the wide limit value of the displacement of the column top, the most widely adopted is that the cross is provided with a round steel with a tensioning device (such as a basket bolt) for supporting, and at the moment, the cross section is smaller, the components are lighter, and the materials are saved. Of course, the adoption of round steel supports has the following disadvantages: 1) Tensioning devices tend to relax, so that generally roughening the end threads after tensioning (or using a double nut, recommended use) can reduce the slack of the round bar to some extent; 2) The application range is limited, the steel is often used at a position with smaller stress, the steel is often used for bearing larger load and higher anti-seismic performance requirements in the fields of large-scale workshops, venues, bridges, super high-rise buildings and the like with complex stress, the round steel with the tensioning device, which is widely used in the prior art, is used for supporting, the use requirements are not met, and the strength is difficult to meet the safety requirements.
Disclosure of utility model
Aiming at the defects and shortcomings of the prior art, the utility model provides the novel tensioning device for the steel structure, which has the advantages of simple structure, reasonable design and convenience in use, and can improve the integral rigidity of the structure, occupy less resources, have high structural strength and prolong the integral service life of the structure.
The utility model discloses a tensioning device for a steel structure, which can be used between columns, remarkably improves the firmness of the two columns and has better stability; the method can also be used for ultrahigh building structures, positions with larger stress of large-scale factory buildings, positions with larger stress of large-span bridges and the like.
Specifically, the tensioning device comprises a node connecting body A, a pull rod component C and a tensioning lock catch body B;
The node connector A comprises an ear plate, an ear plate attaching plate, a component attaching plate and a pin shaft; two sides of each ear plate are provided with an ear plate sticking board, two component sticking boards are arranged between the two ear plate sticking boards, and the ear plates, the ear plate sticking boards and the component sticking boards are all arranged on the pin shaft;
The pull rod member C comprises two steel plate strips with the same width and the same thickness; one end of the steel plate belt is provided with a bolt hole and is arranged between the two component flitch plates, and the other end of the steel plate belt is welded on the tensioning lock catch body B;
The tensioning lock catch body B comprises a high-strength large hexagon head bolt group and lock catch bases, the two lock catch bases are connected through the high-strength large hexagon head bolt to form the tensioning lock catch body B together, a certain gap is reserved between the two lock catch bases, and specific pretightening force can be conveniently applied.
The lock catch base comprises a bottom plate, a transverse side plate, a vertical side plate and an inner partition plate; the transverse side plates, the vertical side plates and the bottom plate are welded to form a hexahedral structure, and the inner partition plate is welded in the hexahedron; the bottom plate is provided with bolt mounting holes and steel plate mounting holes.
The tensioning device for the steel structure provides higher tensioning strength and is convenient to construct and install.
The components of the utility model can be processed into standard components in a factory workshop, and then are assembled on a construction site, so that the utility model has flexible installation and convenient adjustment, short site construction time and at least can save the site construction time by more than 60 percent.
The utility model overcomes the defects in the prior art under the condition of ensuring the qualified installation quality.
1) The longitudinal stability and the longitudinal rigidity of the structural framework can be effectively ensured;
2) Determining the calculated length of the column out of the plane of the column structure;
3) Bearing the longitudinal horizontal load, temperature stress and earthquake action of the end part of the house structure, transmitting the load to the beam column and then to the foundation. The structure has the advantages that the independent plane structure bodies can be well connected into a whole space, necessary rigidity and stability are guaranteed, the space effect of the structure is fully exerted, and the geometric stability of the structure, the lateral stability in the pressed rod piece and the safety of the structure during installation are guaranteed.
Drawings
FIG. 1 is a schematic view of a tensioner for steel structures of the present utility model;
fig. 2 is a schematic structural diagram of the node connector a;
FIG. 3 is a schematic structural view of the tensioning latch B;
FIG. 4 is a schematic view of the latch base;
fig. 5 is a schematic structural view of the pull rod member C.
In the figure: 1-node connector A, 2-tensioning lock catch body B and 3-pull rod component C;
11-ear plates, 12-ear plate flitch, 13-component flitch and 14-pin shaft;
21-a lock catch base, 22-a high-strength large hexagon head bolt;
211-transverse side plates, 212-vertical side plates, 213-bottom plates and 214-inner partition plates;
31-steel plate belt.
Detailed Description
The utility model is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1, the tensioning device for the steel structure is divided into three parts, namely a node connector A1, a tensioning lock catch body B2 and a pull rod member C3. The node connector A is connected with the pull rod member C through a pin shaft to form a hinged connection type structurally. The pin shaft connection can be realized according to the field condition, and an interference connection mode can be adopted, so that the connection has high bearing capacity and good shock resistance and is more reliable and firm.
The pull rod component C is connected with the lock catch base in a welding mode, and welding is performed in a factory, so that welding quality can be guaranteed.
The two lock catch bases are connected together through the high-strength large hexagon head bolt to form a tensioning lock catch body B, and a certain gap is reserved between the two lock catch bases, so that specific pretightening force can be conveniently applied.
The tensioning device solving and calculating can be realized by utilizing a solid model established by three-dimensional solid modeling software SolidWorks or AutoCAD, introducing finite element analysis software ANSYS or ABAQUS to divide grids, establishing a three-dimensional finite element model capable of considering the influences of contact nonlinearity, material nonlinearity and the like, and then loading and solving and calculating. The device was analyzed for force performance under a typical load effect combination.
As shown in fig. 2, the node connector a includes three ear plates 11, six ear plate attaching plates 12, four component attaching plates 13 and a pin 14; an ear plate sticking board is arranged on two sides of each ear plate, two component sticking boards are arranged between the two ear plate sticking boards, and the ear plates, the ear plate sticking boards and the component sticking boards are all arranged on the pin shaft. The installation mode is more in line with the requirement of hinging force transmission, and the additional internal force of the rotation constraint of the beam end can be reduced.
The utility model adopts the connection design which has the following advantages: 1) The tensile strength at the net section of the lug plate hole, the cleavage strength at the end section of the lug plate and the shearing strength of the lug plate are greatly improved; 2) The bearing strength and the shearing strength of the pin shaft are improved, the anti-seismic performance is good, and the reliability is high.
The pin shaft and the lug plate are preferably made of Q345, Q390 and Q420 steel, and 45 # steel, 35CrMo or 40Cr steel can be used if necessary. The strength of each grade of steel should take into account the effect of thickness. In order to ensure the force transmission requirement, the surfaces of the pin shaft and the peripheral surface of the lug hole are machined, and the quality requirement of the pin shaft and the peripheral surface of the lug hole meet the specification of the corresponding machining standard of mechanical parts.
The connection strength calculation, the construction and the fatigue strength calculation of the pin shaft and the lug plate meet the specification of corresponding specification standards.
One lug plate and two lug plate attaching plates in the node connecting body A can be integrally processed in a factory, different sizes are adopted according to different projects, the required number can be processed into standard components in a factory workshop, and the time is greatly shortened.
As shown in fig. 3, the tensioning latch body B includes two latch bases 21 and six high strength large hexagon head bolts 22. The high-strength large hexagon head bolts with performance grades of 8.8 and 10.9 are selected, designed torque values can be applied through special fastening tools such as an electric torque wrench or a manual torque wrench, and the torque values applied by the high-strength large hexagon head bolts in the same batch correspond to fastening axial forces with specific magnitudes.
The two lock catch bases are connected together through the high-strength large hexagon head bolt to form the tensioning lock catch body B, a certain gap is reserved between the two lock catch bases, a better pre-tightening effect is achieved, and specific pre-tightening force is conveniently applied.
The tensioning lock catch body B assembly can be manufactured according to actual demands, can apply specific pretightening force according to functional demands, is flexibly applied to different projects, and is high in operability.
As shown in fig. 4, the latch base includes two lateral side plates 211, two vertical side plates 212, two bottom plates 213, and four inner partition plates 214; the transverse side plates, the vertical side plates and the bottom plate are welded to form a hexahedral structure, and the inner partition plate is welded inside the hexahedron. The bottom plate is provided with bolt mounting holes and steel plate mounting holes. The transverse side plate, the vertical side plate, the bottom plate and the inner partition plate are processed in a factory and are connected together through mutual welding to form a part body with certain rigidity, small deformation and high strength. The materials of the plates are generally common in the market, preferably Q345, Q390 and Q420 steel are adopted, and the plates are processed and manufactured without site limit values.
The splice plate material should be the same with the parent metal, and high strength bolted connection pair performance grade and specification should be the same in the same class splice node.
As shown in fig. 5, the pull rod member C includes two steel plate bands 31 made of steel plates. The steel plate strip is made of carbon structural steel or low-alloy high-strength structural steel plates which are common in the market, and is convenient to obtain materials and simple in processing technology.
The pin shaft is inserted into the eyelet at the end part of the pull rod member C, the pull rod member C is connected with the node connecting body A into a whole through the pin shaft, the other end part of the pull rod member C is connected with the lock catch base into a whole through welding seam connection, and the pull rod member C is reliable in force transmission, simple in structure and convenient to use.
The utility model discloses a tensioning device for a steel structure, which is provided with a certain adjustment amount, and aims to meet the structural errors existing in the existing steel structure building and realize pretension and tensioning of the steel structure, so that the bearing among structural accessories is uniform, the bearing hidden trouble of uneven internal structure stress is eliminated, and the whole structure is stable, durable and durable under the working condition. According to different specifications of the device, the adjustment quantity range is generally +/-20 to +/-112 mm.
The force transmission path of the utility model is as follows: external force, lug plate attaching plate, pin shaft, steel plate belt, component attaching plate, lock catch base, high-strength large hexagon head bolt set, lock catch base, steel plate belt, component attaching plate, pin shaft, lug plate attaching plate and external force.
The pre-tension of the device is generated by applying a specific torque value to the high-strength large hexagon head bolts through a special spanner, and the specific torque value of the high-strength large hexagon head bolts with the same specification in the same batch corresponds to a specific fastening axial force. The installation and the tensioning are convenient, the structural size is easy to control, and the structural form is attractive.
Claims (2)
1. A tensioner for steel construction, characterized in that: comprises a node connecting body A (1), a tensioning lock catch body B (2) and a pull rod member C (3);
The node connector A comprises an ear plate (11), an ear plate attaching plate (12), a component attaching plate (13) and a pin shaft (14); two sides of each ear plate are provided with an ear plate sticking board, two component sticking boards are arranged between the two ear plate sticking boards, and the ear plates, the ear plate sticking boards and the component sticking boards are all arranged on the pin shaft;
The pull rod member C comprises two steel plate strips (31) with the same width and the same thickness; one end of the steel plate belt is provided with a bolt hole and is arranged between the two component flitch plates, and the other end of the steel plate belt is welded on the tensioning lock catch body B;
The tensioning lock catch body B comprises a lock catch base (21) and a high-strength large hexagon bolt group, wherein the two lock catch bases are connected through the high-strength large hexagon bolt to form the tensioning lock catch body B together, and a gap is reserved between the two lock catch bases.
2. The tensioning device for a steel structure according to claim 1, wherein: the lock catch base comprises a transverse side plate (211), a vertical side plate (212), a bottom plate (213) and an inner partition plate (214); the transverse side plates, the vertical side plates and the bottom plate are welded to form a hexahedral structure, and the inner partition plate is welded in the hexahedron; the bottom plate is provided with bolt mounting holes and steel plate mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323166013.XU CN221143281U (en) | 2023-11-23 | 2023-11-23 | Tensioning device for steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323166013.XU CN221143281U (en) | 2023-11-23 | 2023-11-23 | Tensioning device for steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221143281U true CN221143281U (en) | 2024-06-14 |
Family
ID=91389410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323166013.XU Active CN221143281U (en) | 2023-11-23 | 2023-11-23 | Tensioning device for steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221143281U (en) |
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2023
- 2023-11-23 CN CN202323166013.XU patent/CN221143281U/en active Active
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| GR01 | Patent grant |