CN101942864A - Composited tube node and production method - Google Patents
Composited tube node and production method Download PDFInfo
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- CN101942864A CN101942864A CN 201010278798 CN201010278798A CN101942864A CN 101942864 A CN101942864 A CN 101942864A CN 201010278798 CN201010278798 CN 201010278798 CN 201010278798 A CN201010278798 A CN 201010278798A CN 101942864 A CN101942864 A CN 101942864A
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- metal tube
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- elastic body
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Abstract
The invention discloses a composited tube node of a connection metal tube and a production method. A first metal tube and a second metal tube are connected to form various types of tube node structures; openings on the two ends of the first metal tube are connected with a first cover plate in a sealing mode; the opening of the non connecting end of the second metal tube is connected with a second cover plate in a sealing mode; macromoleclar polymer elastomer prepared by mixing liquid polyatomic alcohol, isocyanate and glass or ceramic microsphere the diameter of which is 10-180 mu m according to the volume ratio of 1:1:1 is filled into the first metal tube, the second metal tube and an integral sealed cavity formed by the first cover plate and the second cover plate via pouring holes; and a first closing plate and a second closing plate are respectively used for sealing the pouring holes and a vent hole. The invention lowers the stress peak of a tube node area, and improves the mechanical performance thereof. In the process of bearing external force, the metal tubes in the tube node area and the macromoleclar polymer are mutually stressed so as to greatly improve tube node ductility and fatigue resistance, improve structure bearing capacity, flexion resistance, energy-dissipating capacity and stability and effectively ensure structure safety.
Description
Technical field
The present invention relates to connect in a kind of bridge, building and the offshore engineering structure connector of each member, be specifically related to connect the pipe node of metal tube,
Background technology
In large-scale building, bridge and ocean engineering, often adopt space or trussed construction system, in these structural systems, in order to improve supporting capacity, various types of metal tubes are used as the member that carries vertical and horizontal loading, and these metal tubes connect into integral body after welding with pipe node.According to the quantity and the axis angle difference of metal tube, the connection of pipe node can be divided into patterns such as T, K, Y, X.Because pipe node is that the member and the coupled member of the two or more metal tubes of connection is to adopt welding as connected mode, will inevitably there be bigger residual stress at node region, causes rigidity, ductility, shock resistance and the fatigue strength of node all to descend.
At present, normal steel tube node or steel and two kinds of structures of concrete compound tube node of adopting, wherein, in a single day the steel tube node reaches its maximum load-carrying capacity or fatigue capacity, its ductility will descend significantly, cause the decline of structural-load-carrying capacity and structure energy dissipation capacity.Be to be connected between steel pipe and the concrete in steel and the concrete compound tube node by applying modes such as shearing resistance peg, the shearing resistance peg is again to link to each other with steel pipe by welding, this has just strengthened the node region residual stress, make the fatigue capacity of node further descend, and improve operating expenses and difficulty; Simultaneously,, cause concrete in this compound tube node can not reduce the tension peak stress of node region, can't effectively improve the stress of node region because concrete tension supporting capacity is very poor.
Summary of the invention
The objective of the invention is provides a kind of NEW TYPE OF COMPOSITE pipe node for overcoming the deficiencies in the prior art, with ductility, impact resistance and the fatigue strength that improves pipe node in present building, bridge and the offshore engineering structure.
Another object of the present invention provides the production method of above-mentioned clad pipe node, effectively reduces the performance of clad pipe node cost and raising clad pipe node.
The technical scheme that clad pipe node of the present invention adopts is: the fixedly connected first metal tube sidewall of an end of second metal tube, the both ends open place of first metal tube is sealedly connected with first cover plate, the front of motor opening part of second metal tube is sealedly connected with second cover plate, first and second metal tube and first and second cover plate form the closed cavity of an integral body, filled up the high molecular polymer elastic body in the described closed cavity, first metal tube is provided with fill orifice, second metal tube is provided with steam vent, and first and second closure plate is sealed respectively and connected fill orifice and steam vent.
The production method of clad pipe node of the present invention is according to the following steps: earlier first and second metal tube welding is formed the pipe node structure; First and second metal tube and first and second cover plate and the contacted surface of high molecular polymer elastic body are carried out blasting treatment, make its surface roughness reach the Sa2.5 level; The glass or the ceramic fine bead that with liquid polyol, isocyanates, diameter are 10-180 μ m then are that 1: 1: 1 mixing preparation becomes the high molecular polymer elastic body by volume; The high molecular polymer elastic body that mixing preparation is become injects in the whole closed cavity of first and second metal tube and the formation of first and second cover plate by fill orifice; Use first and second closure plate sealing fill orifice and steam vent at last respectively, treat to get final product after the high molecular polymer elastic body solidifies.
The present invention injects metal tube node cavity area with the high molecular polymer elastic body, because high molecular polymer elastic body and metal tube node have close resistance to compression and resistance to tension, and self can with the metal surface tight bond, there is adhesion stress with the metal surface, so can reduce the peak stress in pipe node zone, improve its stress performance.The present invention need not to apply other connector, in bearing the process of external force, the metal tube in pipe node zone and high molecular polymer are stressed jointly, can improve the ductility and the anti-fatigue performance of pipe node greatly, improve bearing capacity, anti-flexion capabilities, energy dissipation capacity and the stability of structure, and can effectively guarantee the safety of structure.
Description of drawings
Fig. 1 is the explosive view of T type structure of the present invention.
Fig. 2 is the assembling outline drawing of Fig. 1.
Fig. 3 is metal tube 1 and 2 syndeton sectional views among Fig. 2.
Fig. 4 is the assembling outline drawing of K type structure of the present invention.
Among the figure: 1. first metal tube; 2. second metal tube; 4. high molecular polymer elastic body; 5-1. first cover plate; 5-2. second cover plate; 6. fill orifice; 7. steam vent; 7-1. first steam vent; 7-2. second steam vent; 8-1. first closure plate; 8-2. second closure plate.
The specific embodiment
Referring to Fig. 1-3, be connected by welding or alternate manner with second metal tube 2 by first metal tube 1, with fixedly connected first metal tube of an end of second metal tube 21 sidewall, the inner chamber of first metal tube 1 and second metal tube 2 communicates, and forms the pipe node of T type structure.Sentencing the first cover plate 5-1 at the both ends open of first metal tube 1 is tightly connected, the front of motor opening part of second metal tube 2 is tightly connected with the second cover plate 5-2, like this, first, second metal tube 1,2 and first, second cover plate 5-1,5-2 form the closed cavity of an integral body, in this whole closed cavity, fill up high molecular polymer elastic body 4, high molecular polymer elastic body 4 is undertaken solidifying to form behind the closed cavity by cast, and high molecular polymer elastic body 4 dependence self adhesion stress links to each other with first, second metal tube 1,2.Have fill orifice 6 on first metal tube 1, have steam vent 7 on second metal tube 2, the number of fill orifice 6 and steam vent 7 is decided according to the length and the diameter of first, second metal tube 1,2.The first closure plate 8-1 is used for sealing connection fill orifice 6, the second closure plate 8-2 and is used for sealing connection steam vent 7.
The thickness of pipe of first, second metal tube 1,2 is 2～30mm, and the cross section of first, second metal tube 1,2 can be circle or regular polygon, can be made up of identical or different metal, has identical or different thickness, can adopt identical or different surfacing.
First, second metal tube 1,2 is sealed by first, second cover plate 5-1, the 5-2 of solid construction respectively, high molecular polymer elastic body 4 uncured in the time of can preventing to pour into a mould overflows, and first, second cover plate 5-1,5-2 selects for use and high molecular polymer elastic body 4 has the material of good adhesive property.
The clad pipe node of the present invention of production according to the following steps:
The first step: first metal tube 1 and second metal tube 2 are passed through the pipe node structure that welding forms required type;
Second step: with handling of first metal tube 1, second metal tube 2 and first, second cover plate 5-1,5-2 with high molecular polymer elastic body 4 contacted surfaces, preferential employing blasting treatment, if use the blasting treatment mode, then should adopt steel sand (Rockwell hardness＞62) or corundum as abrasive material, under 0.6-0.7MPa pressure, do blasting treatment and make its surface roughness reach the Sa2.5 level, possess good adhesive property to guarantee itself and high molecular polymer elastic body 4.
The 3rd step: carry out the allotment of high molecular polymer elastic body 4, the material of high molecular polymer elastic body 4 is the mixture of polyurethane and microballon, polyurethane was made up of the polyalcohol and the isocyanates of liquid state in 1: 1 by volume, microballon preferred glass microballon or ceramic fine bead, the diameter of microballon is 10-180 μ m, the volume ratio of liquid polyol, isocyanates and microballon is: polyalcohol: isocyanates: microballon is 1: 1: 1, with three's mixing preparation, forms the polyurethane granular elastic body.Because the bead diameter that adds is small, can not influence the adhesion stress between high molecular polymer elastic body 4 and the metal, but can effectively reduce the density of high molecular polymer elastic body 4, the density that makes high molecular polymer elastic body 4 is 0.6～07kg/cm
3, also can reduce the weight of pipe node and effectively reduce cost.
The 4th step: mixed high molecular polymer elastic body 4 is injected in the whole closed cavity of first, second metal tube 1,2 and first, second cover plate 5-1,5-2 formation by fill orifice 6.
The 5th step: use first, second closure plate 8-1,8-2 sealing fill orifice 6 and steam vent 7 respectively.
The 6th step: after treating that high molecular polymer elastic body 4 solidifies, promptly removable.
Behind the closed cavity of above-mentioned high molecular polymer elastic body 4 ascending pipe nodes, because high molecular polymer elastic body 4 has close resistance to compression and resistance to tension with metal, self can with the metal surface tight bond, the material of high molecular polymer elastic body 4 is a kind of high strength block polymerization elastomeric materials, need not to apply other connector.Following table 1 provides the performance of high molecular polymer elastic body 4 of the present invention minimum limit value:
Table 1
| The perfusion life-span | 360 seconds |
| Density | 1000kg/m 3(room temperature) |
| Elongation per unit length | 20% (room temperature) |
| Hardness | Shore D 65 (room temperature) |
| Intensity | 20Mpa |
2 embodiment below are provided, and the invention will be further described:
Be fixedly welded on the sidewall formation T type pipe node of first metal tube 1 as an end of Fig. 1-3, the second metal tube 2; The length of first metal tube 1 is that 1200mm, external diameter are that 200mm, wall thickness are 5mm; The length of second metal tube 2 is that 600mm, external diameter are 160mm, and pipe thickness is 3mm.First, second metal tube 1,2 all adopts the Q345 steel.The diameter of high molecular polymer elastic body 4 in first metal tube 1 is 190mm, and the diameter in second metal tube 2 is 154mm.Fill orifice 6 is arranged on first metal tube 1, and steam vent 7 is arranged on second metal tube 2.The first sealing plate 8-1 of sealing fill orifice 6 is the circular steel plate of thickness 5mm on first metal tube 1, and the second sealing plate 8-2 of closed grate hole 7 is the circular steel plate of thickness 3mm on second metal tube 2, and the diameter of fill orifice 6 and steam vent 7 is 10mm.
As Fig. 4, an end of one first metal tube 1 and two second metal tubes 2 is formed K type pipe node by welding.First metal tube, 1 length is that 200mm, pipe thickness are 5mm for 1200mm, external diameter; The length of two second metal tubes 2 is that 600mm, external diameter are 160mm, pipe thickness is 3mm.First, second metal tube 1,2 all adopts the Q345 steel.High molecular polymer elastic body 4 adopts polyurethane elastomer, and the diameter of high molecular polymer elastic body 4 in first metal tube 1 is 190mm, and the diameter of high molecular polymer elastic body 4 in second metal tube 2 is 154mm.Fill orifice 6 is arranged on first metal tube 1, and first, second two steam vent 7-1,7-2 are separately positioned on two second metal tubes 2.The first sealing plate 8-1 that is used to seal fill orifice 6 on first metal tube 1 is the circular steel plate of thickness 5mm, first, second sealing plate 8-2 that is used to seal first, second steam vent 7-1,7-2 on two second metal tubes 2 is the circular steel plate of thickness 3mm, and the diameter of fill orifice 6 and first, second steam vent 7-1,7-2 is 10mm.
One first metal tube 1, two second metal tubes 2, first, second cover plate 5-1,5-2 and high molecular polymer elastic body 4 contacted surfaces are handled, to guarantee the bonding requirement.On first metal tube 1, fill orifice 6 is set, first, second steam vent 7-1,7-2 are set respectively on two second metal tubes 2.Want rationally fill orifice 6 and first, second steam vent 7-1,7-2 position, to reduce Structural Influence.Then uncured high molecular polymer elastic body 4 is injected the whole closed cavity that first metal tube 1, two second metal tubes 2 and first, second cover plate 5-1,5-2 form by fill orifice 6.At last, use again with first, second sealing plate 8-1, the 8-2 of first, second metal tube 1,2 identical materials and seal fill orifice 6 and first, second steam vent 7-1,7-2 respectively.After treating that high molecular polymer elastic body 4 solidifies, promptly removable.
Claims (3)
1. clad pipe node, fixedly connected first metal tube of one end of second metal tube (2) (1) sidewall, the both ends open place of first metal tube (1) is sealedly connected with first cover plate (5-1), the front of motor opening part of second metal tube (2) is sealedly connected with second cover plate (5-2), first, two metal tubes (1,2) and first, two cover plate (5-1, form the closed cavity of an integral body 5-2), it is characterized in that: filled up high molecular polymer elastic body (4) in the described closed cavity, first metal tube (1) is provided with fill orifice (6), second metal tube (2) is provided with steam vent (7), first, two closure plate (8-1,8-2) sealing connects fill orifice (6) and steam vent (7) respectively.
2. a kind of clad pipe node according to claim 1 is characterized in that: the thickness of pipe of first and second metal tube (1,2) is 2～30mm, and cross section is circle or regular polygon.
3. the production method of a clad pipe node is characterized in that according to the following steps:
A, the welding of first metal tube (1) and second metal tube (2) is formed the pipe node structure;
B, blasting treatment is carried out on first and second metal tube (1,2) and first and second cover plate (5-1,5-2) and the contacted surface of high molecular polymer elastic body (4), made its surface roughness reach the Sa2.5 level;
C: with glass or the ceramic fine bead of liquid polyol, isocyanates, diameter 10-180 μ m is that 1: 1: 1 mixing preparation becomes high molecular polymer elastic body (4) by volume;
D: the high molecular polymer elastic body (4) that mixing preparation is become injects in the whole closed cavity of first and second metal tube (1,2) and first and second cover plate (5-1,5-2) formation by fill orifice (6);
E: use first and second closure plate (8-1,8-2) sealing fill orifice (6) and steam vent (7) respectively, treat to get final product after high molecular polymer elastic body (4) solidifies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102787988A CN101942864B (en) | 2010-09-10 | 2010-09-10 | Composited tube node and production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102787988A CN101942864B (en) | 2010-09-10 | 2010-09-10 | Composited tube node and production method |
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| Publication Number | Publication Date |
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| CN101942864A true CN101942864A (en) | 2011-01-12 |
| CN101942864B CN101942864B (en) | 2012-01-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058700A (en) * | 2013-01-31 | 2013-04-24 | 中国科学院宁波材料技术与工程研究所 | Insulating sealed metal air pipe as well as sealed connection method of metal pipes and ceramic pipe |
| CN104612324A (en) * | 2014-12-22 | 2015-05-13 | 浙江交通职业技术学院 | An energy-dissipating stiffening steel polymer sandwich pipe and a manufacturing process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761727Y (en) * | 2004-10-12 | 2006-03-01 | 昆明理工大学 | Original bamboo structure node used for Tai family bamboo building |
| CN1824450A (en) * | 2005-02-22 | 2006-08-30 | 大连新船重工有限责任公司 | Technological method of partly submerged type platform complex K type node welding |
| CN101200965A (en) * | 2007-12-18 | 2008-06-18 | 北京别一阁钢结构科技开发有限公司 | Stamping formed metal connection board and girders |
| CN101319519A (en) * | 2008-06-24 | 2008-12-10 | 浙江大学 | Cast steel node suitable for truss string structure double-cable stretching |
| CN101435227A (en) * | 2008-12-17 | 2009-05-20 | 清华大学 | Filling stainless steel tube component - stainless steel tube welding connection node |
| WO2009124354A1 (en) * | 2008-04-10 | 2009-10-15 | Lu Papi & Associates Pty Ltd | Coupling with locking arrangements for tubular connections |
-
2010
- 2010-09-10 CN CN2010102787988A patent/CN101942864B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2761727Y (en) * | 2004-10-12 | 2006-03-01 | 昆明理工大学 | Original bamboo structure node used for Tai family bamboo building |
| CN1824450A (en) * | 2005-02-22 | 2006-08-30 | 大连新船重工有限责任公司 | Technological method of partly submerged type platform complex K type node welding |
| CN101200965A (en) * | 2007-12-18 | 2008-06-18 | 北京别一阁钢结构科技开发有限公司 | Stamping formed metal connection board and girders |
| WO2009124354A1 (en) * | 2008-04-10 | 2009-10-15 | Lu Papi & Associates Pty Ltd | Coupling with locking arrangements for tubular connections |
| CN101319519A (en) * | 2008-06-24 | 2008-12-10 | 浙江大学 | Cast steel node suitable for truss string structure double-cable stretching |
| CN101435227A (en) * | 2008-12-17 | 2009-05-20 | 清华大学 | Filling stainless steel tube component - stainless steel tube welding connection node |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058700A (en) * | 2013-01-31 | 2013-04-24 | 中国科学院宁波材料技术与工程研究所 | Insulating sealed metal air pipe as well as sealed connection method of metal pipes and ceramic pipe |
| CN103058700B (en) * | 2013-01-31 | 2014-11-05 | 中国科学院宁波材料技术与工程研究所 | Insulating sealed metal air pipe as well as sealed connection method of metal pipes and ceramic pipe |
| CN104612324A (en) * | 2014-12-22 | 2015-05-13 | 浙江交通职业技术学院 | An energy-dissipating stiffening steel polymer sandwich pipe and a manufacturing process thereof |
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| Publication number | Publication date |
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| CN101942864B (en) | 2012-01-04 |
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Address after: 212028 Zhenjiang, Dantu Metro Industrial Park Rui East Road, No. 9 Patentee after: Jiangsu University of Science and Technology Address before: 212003 Zhenjiang City, Jiangsu province dream Creek Road, No. 2 Patentee before: Jiangsu University of Science and Technology |
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