CN203701297U - KT-shaped space buckling-resisting tubular joint of rectangular steel tube structure - Google Patents
KT-shaped space buckling-resisting tubular joint of rectangular steel tube structure Download PDFInfo
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- CN203701297U CN203701297U CN201420059575.6U CN201420059575U CN203701297U CN 203701297 U CN203701297 U CN 203701297U CN 201420059575 U CN201420059575 U CN 201420059575U CN 203701297 U CN203701297 U CN 203701297U
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- shape
- arm
- supervisor
- hush panel
- bushing pipe
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Abstract
The utility model discloses a KT-shaped space buckling-resisting tubular joint of a rectangular steel tube structure. The KT-shaped space buckling-resisting tubular joint of the rectangular steel tube structure comprises a main pipe, a K-shaped first branch pipe, a K-shaped second branch pipe and a T-shaped branch pipe. A reinforcing steel hoop is arranged on the wall of the main pipe. One end of the K-shaped first branch pipe and one end of the K-shaped second branch pipe are arranged on the first side face of the reinforcing steel hoop, so that a K-shaped branch pipe of a K-shaped structure is formed. One end of the T-shaped branch pipe is perpendicularly arranged on the second side face perpendicular to the first side face of the reinforcing steel hoop. One end, with a first seal plate, of a first liner tube and one end, with a second seal plate, of a second liner tube are inserted into the main pipe. The middle of the first seal plate and the middle of the second seal plate are provided with a grouting hole and an exhaust hole respectively. The reinforcing steel hoop is arranged on the wall of the main pipe to improve the bearing capacity of the joint, the main pipe is locally filled with concrete via the grouting hole and the exhaust hole, stiffness mutation and stress concentration of the mouth of the main pipe are relieved through the liner tubes, and local buckling at the joint of the main pipe is effectively restrained.
Description
Technical field
The utility model relates to a kind of tubular joint, especially relates to a kind of anti-buckling tubular joint in KT shape space of concrete filled rectangular steel tube members.
Background technology
Recent two decades comes, and steel tubular structure is in China's fast development, because its quality is light, and easy construction, the symmetry in pipe fitting cross section is conducive to the stability Design of single rod member, is therefore widely used in the buildings such as sports palace, terminal, exhibition hall, office building; Meanwhile, be accompanied by the development of computer numerical control process technology, tubular joint is simple, easy to process, attractive in appearance and save the advantage such as steel and become one of joint form comparatively conventional in steel tubular structure with its connection; Pure welded K-joint of steel tubular when arm internal force larger, or Nodes arm collects when more, node stress is concentrated serious, force-bearing situation complexity, easily there is cripling at supervisor's tube wall, be out of shape greatlyr, easily cause node prior to component damage, can not give full play to the load-carrying properties that steel pipe is good, thereby reduce the supporting capacity of steel tubular structure entirety; For this reason, Chinese scholars has also proposed some solutions.
KT shape welded K-joint of steel tubular is one of conventional node type in steel truss structure, be more common in the junction node of space truss web member (arm), chord member (supervisor) and tie-rod (arm), existing KT shape welded K-joint of steel tubular, for improving ultimate bearing capacity of joints, avoid destruction of a node prior to member, conventionally adopt following reinforcement mode:
(1) in supervisor, stiffening rib is set.Although the method can play booster action to pipe node to a certain extent, and the stress that can alleviate node area is concentrated, a kind of effective ground Scheme of Strengthening of can yet be regarded as in theory analysis, still considers the needs of Practical Project, and such method is in actual work progress, complex process, operation inconvenience, especially, to establishing stiffening rib in fished pipe, need slot at tube wall, technological requirement is high, and processing cost is large.
(2) use collar extension plate to reinforce.The method, along primary branch intersection, arranges ring flat-plate at supervisor's weld heat-affected zone and reinforces, and to strengthen intensity and the rigidity of supervisor in welding position, can either improve the static strength of node, can increase again node in prerupture deformability.This reinforcing mode, destruction by unguyed node around weld seam is transferred to the destruction of collar extension panel area beyond weld heat-affected zone, change the failure mode of node, but this mode can make again structure undergo mutation in the rigidity of collar extension panel edges, generation stress is concentrated, and is unfavorable for the stable of structure.
(3) plate connects.The essence of the method is, in node junction, gusset plate is set, and on steel tube section, slots, and junction plate is inserted in pre-slotting and welded; Node processed complex, construction welding capacity is large, and shear lag and cripling phenomenon very easily occur for plate and steel tube section.
(4) in supervisor, entirety is filled with concrete.The method is to placing of concrete in supervisor, can provide good Compressive Bearing Capacity, and provide lateral restraint to tube wall after concrete coagulation, and limiter tube Nodes supervisor's bending deformation, improves node supporting capacity greatly to a great extent.But the reinforcement means of this monolithic concrete has increased the deadweight of structure to a great extent, structure design load increases, and extends construction period, and the unnecessary waste that made material production.
Traditional reinforcement means has improved the bearing capacity of KT shape welded K-joint of steel tubular to a certain extent, but also more or less exist some corresponding problems; For this reason, for concrete filled rectangular steel tube members conventional in engineering, by researching and analysing, improve reinforcement means, propose a kind of anti-buckling tubular joint in KT shape space of novel rectangular steel tubular structure.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of anti-buckling tubular joint in KT shape space of concrete filled rectangular steel tube members is provided, it is simple in structure, reasonable in design, it is convenient to realize, use simple operation, strengthen tension and the anti-bending bearing capacity of node by reinforcing steel hoop, not only can make supervisor extend by bushing pipe, also can increase the supporting capacity at supervisor mouth of pipe place, by to supervisor's selective placement concrete, not only increase the supporting capacity of node, and can avoid supervisor because of entirety grouting deadweight increase, job stability is high, long service life, practical, result of use is good, be convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of anti-buckling tubular joint in KT shape space of concrete filled rectangular steel tube members, it is characterized in that: comprise supervisor, K shape the first arm, K shape the second arm and T shape arm, reinforcing steel hoop is set on described supervisor's tube wall, and described reinforcing steel hoop is surrounded by the strengthening steel slab being fixedly installed on described supervisor's tube wall; One end of described K shape the first arm and K shape the second arm is all arranged on the first side of described reinforcing steel hoop, described K shape the first arm, K shape the second arm and supervisor form the K shape arm of K shape structure, described K shape the first arm, K shape the second arm and described supervisor's axis is in same plane, acute angle between acute angle between described K shape the first arm and described supervisor and described K shape the second arm and described supervisor is 30 degree～60 degree, and the distance between described K shape the first branch pipe wall and K shape the second branch pipe wall is at least 10mm; One end of described T shape arm is vertically set on the second side of described reinforcing steel hoop, and described the second side and described the first side are perpendicular; The axis of described K shape the first arm, K shape the second arm and T shape arm is all crossing with described supervisor's axis and intersect at same point; It is inner that described supervisor is inserted respectively in one end of the first bushing pipe and the second bushing pipe, the external surface of described the first bushing pipe and the second bushing pipe all with described supervisor's inner surface close contact, described the first bushing pipe is positioned at described supervisor one end the first hush panel is set, the centre position place of described the first hush panel has grout hole, described the second bushing pipe is positioned at described supervisor one end the second hush panel is set, the centre position place of described the second hush panel has steam vent, passes through described grout hole placing of concrete in described supervisor; Described the first hush panel and the second hush panel lay respectively at described K shape arm along charge shaft to the tube wall outside arranging, distance between distance between described the first hush panel and described K shape branch pipe wall and the second hush panel and described K shape branch pipe wall equates, described concrete pouring length equates with the distance between described the first hush panel and the second hush panel.
The anti-buckling tubular joint in KT shape space of above-mentioned a kind of concrete filled rectangular steel tube members, is characterized in that: the aperture of described grout hole is 40mm, the aperture of described steam vent is 20mm.
The anti-buckling tubular joint in KT shape space of above-mentioned a kind of concrete filled rectangular steel tube members, is characterized in that: described concrete is the micro-swollen pea gravel concreten of C30 intensity.
The anti-buckling tubular joint in KT shape space of above-mentioned a kind of concrete filled rectangular steel tube members, is characterized in that: the distance between described the first hush panel and described K shape branch pipe wall is 200mm～500mm.
The anti-buckling tubular joint in KT shape space of above-mentioned a kind of concrete filled rectangular steel tube members, is characterized in that: described supervisor, K shape the first arm, K shape the second arm, T shape arm, the first bushing pipe and the second bushing pipe are rectangular steel pipe.
The anti-buckling tubular joint in KT shape space of above-mentioned a kind of concrete filled rectangular steel tube members, it is characterized in that: four described strengthening steel slabs are connected and surrounded described reinforcing steel hoop by butt weld, described reinforcing steel hoop is connected by fillet weld with described supervisor, described K shape the first arm, K shape the second arm and T shape arm are connected by fillet weld with described reinforcing steel hoop, and described supervisor is all connected by spotweld with the first bushing pipe and the second bushing pipe.
The utility model compared with prior art has the following advantages:
1, the utility model Structural Tectonics good looking appearance, reasonable in design, constructs convenient and realize conveniently.
2, the utility model is strengthened node tension and the anti-bending bearing capacity between supervisor and arm by reinforcing steel hoop, and consolidation effect obviously and easy construction.
3, the utility model is in the milk in the part of Nodes to supervisor by micro-swollen concrete, not only can avoid supervisor to conduct oneself with dignity and increase, avoid arranging the form node such as stiffening rib or plate connection because of entirety grouting, and by concrete microdilatancy effect, supervisor is clogged full in the region between two hush panel, for Nodes supervisor inwall provides lateral restraint, effectively limit the cripling of supervisor at Nodes, increase the supporting capacity of node, reduced construction costs and shortened the duration.
4, the utility model not only can make supervisor extend by bushing pipe, and can make to be responsible for inner grout compartment and supervisor mouth of pipe place between grout compartment, do not form transition region, increase the bearing capacity at supervisor mouth of pipe place, greatly alleviated supervisor's rigidity sudden change problem and problem of stress concentration.
5, the utility model, by the grout hole in hush panel and steam vent, makes to be responsible for inner grouting convenient, and construction quality is high.
6, directly, clearly, practical, result of use is good, is convenient to promote the use of in the utility model power transmission.
In sum, the utility model outward appearance grace, power transmission is direct and clear and definite, use and reinforce steel hoop increase ultimate bearing capacity of joints by the Nodes between arm and supervisor, by the grout hole in hush panel and steam vent, supervisor node location place is carried out to part grouting, and alleviate rigidity sudden change problem and the problem of stress concentration of supervisor at mouth of pipe place by bushing pipe, effectively limit the cripling of supervisor at Nodes, strengthen supervisor's bearing capacity, low and duration of construction costs shortens, structure long service life, practical, result of use is good, be convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is stereogram of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is the A-A sectional drawing of Fig. 2.
Description of reference numerals:
1-supervisor; 2-1-K shape the first arm; 2-2-K shape the second arm;
2-3-T shape arm; 3-1-the first bushing pipe; 3-2-the second bushing pipe;
4-reinforcing steel hoop; 5-grout hole; 6-steam vent;
7-concrete; 8-1-the first hush panel; 8-2-the second hush panel.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, the utility model comprises supervisor 1, K shape the first arm 2-1, K shape the second arm 2-2 and T shape arm 2-3, on described supervisor's 1 tube wall, arrange and reinforce steel hoop 4, described reinforcing steel hoop 4 is surrounded by the strengthening steel slab being fixed on by butt weld on described supervisor's 1 tube wall, one end of described K shape the first arm 2-1 and K shape the second arm 2-2 is all arranged on the first side of described reinforcing steel hoop 4 by fillet weld, described K shape the first arm 2-1, K shape the second arm 2-2 and the K shape arm of being responsible for 1 formation K shape structure, described K shape the first arm 2-1, K shape the second arm 2-2 and described supervisor's 1 axis is in same plane, acute angle between acute angle and described K shape the second arm 2-2 and described supervisor 1 between described K shape the first arm 2-1 and described supervisor 1 is 30 degree～60 degree, distance between described K shape the first arm 2-1 tube wall and K shape the second arm 2-2 tube wall is 10mm, one end of described T shape arm 2-3 is vertically set on by fillet weld on the second side of described reinforcing steel hoop 4, and described the second side and described the first side are perpendicular, described K shape the first arm 2-1, K shape the second arm 2-2 and the axis of T shape arm 2-3 and described supervisor 1 axis intersect at same point, described supervisor 1 inside is inserted respectively in one end of the first bushing pipe 3-1 and the second bushing pipe 3-2, the external surface of described the first bushing pipe 3-1 and the second bushing pipe 3-2 all with described supervisor's 1 inner surface close contact, described supervisor's 1 port is connected with the first bushing pipe 3-1 and the second bushing pipe 3-2 respectively by spotweld, the first bushing pipe 3-1 and the second bushing pipe 3-2 have not only extended supervisor's 1 length, make to be responsible for 1 and be convenient to continued access, and make to be responsible for 1 inner grout compartment and the mouth of pipe does not form transition region between grout compartment, increase the bearing capacity of being responsible for 1 mouth of pipe place, rigidity sudden change problem and the problem of stress concentration of being responsible for 1 are alleviated, described the first bushing pipe 3-1 is positioned at described supervisor 1 one end the first hush panel 8-1 is set, described the second bushing pipe 3-2 is positioned at described supervisor 1 one end the second hush panel 8-2 is set, described the first hush panel 8-1 and the second hush panel 8-2 lay respectively at the tube wall outside that described K shape arm axially arranges along supervisor 1, distance between distance between described the first hush panel 8-1 and described K shape branch pipe wall and the second hush panel 8-2 and described K shape branch pipe wall equates, and this distance is 200mm～500mm, the centre position place of described the first hush panel 8-1 has the grout hole 5 that aperture is 40mm, the centre position place of described the second hush panel 8-2 has the steam vent 6 that aperture is 20mm, give supervisor 1 the micro-swollen pea gravel concreten 7 that inner pouring intensity is C30 by described grout hole 5, the pouring length of described concrete seven equates with the distance between described the first hush panel 8-1 and the second hush panel 8-2, microdilatancy effect by concrete seven is clogged full in the region between described the first hush panel 8-1 and the second hush panel 8-2 by supervisor 1, be responsible for 1 inwall for Nodes lateral restraint is provided, effectively limit and be responsible for 1 cripling at Nodes, increase that to be responsible for 1 bearing capacity and construction costs lower.
As shown in Figure 1, Figure 2 and Figure 3, in the present embodiment, described supervisor 1, K shape the first arm 2-1, K shape the second arm 2-2, T shape arm 2-3, the first bushing pipe 3-1 and the second bushing pipe 3-2 are rectangular steel pipe.
Process of the present utility model is: the reinforcing steel hoop 4 that welding surrounds by strengthening steel slab on supervisor 1 tube wall, on the first side that reinforces steel hoop 4, weld K shape the first arm 2-1 and K shape the second arm 2-2 according to the angle of requirement of engineering, form K shape steel tubular structure, and weld T shape arm 2-3 on the second side perpendicular with reinforcing steel hoop 4 first sides, and make the axis of K shape the first arm 2-1, K shape the second arm 2-2 and T shape arm 2-3 and supervisor 1 axis intersect at same point; According to the concrete needs of engineering, calculate the optimum position that the first bushing pipe 3-1 and the second bushing pipe 3-2 insert in supervisor 1, and the first bushing pipe 3-1 and second bushing pipe 3-2 one end are inserted respectively in supervisor 1, make the first bushing pipe 3-1 and the second bushing pipe 3-2 in this optimum position, and fix the first bushing pipe 3-1 and the second bushing pipe 3-2 by spotweld; Grout hole 5 from the first hush panel 8-1 is given supervisor 1 inner placing of concrete 7, strengthens supervisor's 1 anti-buckling ability at Nodes.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. the anti-buckling tubular joint in KT shape space of a concrete filled rectangular steel tube members, it is characterized in that: comprise supervisor (1), K shape the first arm (2-1), K shape the second arm (2-2) and T shape arm (2-3), on described supervisor's (1) tube wall, arrange and reinforce steel hoop (4), described reinforcing steel hoop (4) is surrounded by the strengthening steel slab being fixedly installed on described supervisor (1) tube wall, one end of described K shape the first arm (2-1) and K shape the second arm (2-2) is all arranged on the first side of described reinforcing steel hoop (4), described K shape the first arm (2-1), K shape the second arm (2-2) and the K shape arm of being responsible for (1) formation K shape structure, described K shape the first arm (2-1), K shape the second arm (2-2) and described supervisor's (1) axis is in same plane, acute angle between acute angle between described K shape the first arm (2-1) and described supervisor (1) and described K shape the second arm (2-2) and described supervisor (1) is 30 degree～60 degree, distance between described K shape the first arm (2-1) tube wall and K shape the second arm (2-2) tube wall is at least 10mm, one end of described T shape arm (2-3) is vertically set on the second side of described reinforcing steel hoop (4), and described the second side and described the first side are perpendicular, the axis of described K shape the first arm (2-1), K shape the second arm (2-2) and T shape arm (2-3) is all crossing with described supervisor's (1) axis and intersect at same point, described supervisor (1) inside is inserted respectively in one end of the first bushing pipe (3-1) and the second bushing pipe (3-2), the external surface of described the first bushing pipe (3-1) and the second bushing pipe (3-2) all with described supervisor's (1) inner surface close contact, described the first bushing pipe (3-1) is positioned at described supervisor (1) one end the first hush panel (8-1) is set, the centre position place of described the first hush panel (8-1) has grout hole (5), described the second bushing pipe (3-2) is positioned at described supervisor (1) one end the second hush panel (8-2) is set, the centre position place of described the second hush panel (8-2) has steam vent (6), in described supervisor (1), pass through described grout hole (5) placing of concrete (7), described the first hush panel (8-1) and the second hush panel (8-2) lay respectively at the tube wall outside that described K shape arm axially arranges along supervisor (1), distance between distance between described the first hush panel (8-1) and described K shape branch pipe wall and the second hush panel (8-2) and described K shape branch pipe wall equates, the pouring length of described concrete (7) equates with the distance between described the first hush panel (8-1) and the second hush panel (8-2).
2. according to the anti-buckling tubular joint in KT shape space of a kind of concrete filled rectangular steel tube members claimed in claim 1, it is characterized in that: the aperture of described grout hole (5) is 40mm, the aperture of described steam vent (6) is 20mm.
3. according to the anti-buckling tubular joint in KT shape space of a kind of concrete filled rectangular steel tube members claimed in claim 1, it is characterized in that: the micro-swollen pea gravel concreten that described concrete (7) is C30 intensity.
4. according to the anti-buckling tubular joint in KT shape space of a kind of concrete filled rectangular steel tube members claimed in claim 1, it is characterized in that: the distance between described the first hush panel (8-1) and described K shape branch pipe wall is 200mm～500mm.
5. according to the anti-buckling tubular joint in KT shape space of a kind of concrete filled rectangular steel tube members claimed in claim 1, it is characterized in that: described supervisor (1), K shape the first arm (2-1), K shape the second arm (2-2), T shape arm (2-3), the first bushing pipe (3-1) and the second bushing pipe (3-2) are rectangular steel pipe.
6. according to the anti-buckling tubular joint in KT shape space of a kind of concrete filled rectangular steel tube members claimed in claim 1, it is characterized in that: four described strengthening steel slabs are connected and surrounded described reinforcing steel hoop (4) by butt weld, described reinforcing steel hoop (4) is connected by fillet weld with described supervisor (1), described K shape the first arm (2-1), K shape the second arm (2-2) and T shape arm (2-3) are connected by fillet weld with described reinforcing steel hoop (4), and described supervisor (1) is all connected by spotweld with the first bushing pipe (3-1) and the second bushing pipe (3-2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420059575.6U CN203701297U (en) | 2014-02-08 | 2014-02-08 | KT-shaped space buckling-resisting tubular joint of rectangular steel tube structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420059575.6U CN203701297U (en) | 2014-02-08 | 2014-02-08 | KT-shaped space buckling-resisting tubular joint of rectangular steel tube structure |
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| CN203701297U true CN203701297U (en) | 2014-07-09 |
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| CN201420059575.6U Expired - Fee Related CN203701297U (en) | 2014-02-08 | 2014-02-08 | KT-shaped space buckling-resisting tubular joint of rectangular steel tube structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863383A (en) * | 2015-05-29 | 2015-08-26 | 祝磊 | Circular steel tube joint concrete filling strengthening method |
| CN105756190A (en) * | 2016-04-22 | 2016-07-13 | 江苏建筑职业技术学院 | Fabricated circular steel tube truss tubular joint and machining and manufacturing method thereof |
| CN105888286A (en) * | 2016-05-12 | 2016-08-24 | 中国矿业大学 | Method for reinforcing steel pipe joints by upward movement of groove-shaped collar plate |
| CN107119804A (en) * | 2017-04-05 | 2017-09-01 | 长安大学 | The PBL that node tensile and compressive property can be improved simultaneously puts more energy into shape steel tube concrete joint |
| CN107386763A (en) * | 2017-07-11 | 2017-11-24 | 中国电力科学研究院 | Concrete filled steel tube power transmission tower tubular joint containing compressor wire and preparation method thereof |
| CN112610019A (en) * | 2020-12-25 | 2021-04-06 | 福州大学 | Local grouting reinforcement T-shaped node of base plate |
-
2014
- 2014-02-08 CN CN201420059575.6U patent/CN203701297U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863383A (en) * | 2015-05-29 | 2015-08-26 | 祝磊 | Circular steel tube joint concrete filling strengthening method |
| CN105756190A (en) * | 2016-04-22 | 2016-07-13 | 江苏建筑职业技术学院 | Fabricated circular steel tube truss tubular joint and machining and manufacturing method thereof |
| CN105888286A (en) * | 2016-05-12 | 2016-08-24 | 中国矿业大学 | Method for reinforcing steel pipe joints by upward movement of groove-shaped collar plate |
| CN105888286B (en) * | 2016-05-12 | 2018-07-27 | 中国矿业大学 | A kind of method that groove profile collar extension plate moves up reinforcement Steel Tube Joint |
| CN107119804A (en) * | 2017-04-05 | 2017-09-01 | 长安大学 | The PBL that node tensile and compressive property can be improved simultaneously puts more energy into shape steel tube concrete joint |
| CN107119804B (en) * | 2017-04-05 | 2019-08-16 | 长安大学 | The PBL that node tensile and compressive property can be improved simultaneously puts more energy into shape steel tube concrete joint |
| CN107386763A (en) * | 2017-07-11 | 2017-11-24 | 中国电力科学研究院 | Concrete filled steel tube power transmission tower tubular joint containing compressor wire and preparation method thereof |
| CN112610019A (en) * | 2020-12-25 | 2021-04-06 | 福州大学 | Local grouting reinforcement T-shaped node of base plate |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160208 |
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| CF01 | Termination of patent right due to non-payment of annual fee |