CN101942865B - Steel/high molecular material interlayer tubular joint - Google Patents
Steel/high molecular material interlayer tubular joint Download PDFInfo
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- CN101942865B CN101942865B CN201010278806A CN201010278806A CN101942865B CN 101942865 B CN101942865 B CN 101942865B CN 201010278806 A CN201010278806 A CN 201010278806A CN 201010278806 A CN201010278806 A CN 201010278806A CN 101942865 B CN101942865 B CN 101942865B
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Abstract
The invention discloses a steel/high molecular material interlayer tubular joint for jackets, truss column and other types of ocean platforms. One end of a second metal outer tube is connected with the side wall of a first metal outer tube; the inner cavities of the first and second metal outer tubes are respectively coaxially sheathed on a first inner tube and a second inner tube at intervals; the outer walls of the first and second inner tubes are respectively fixed with a first locating ring and a second locating rings which are clamped in the corresponding grooves in the inner walls of the first and second metal outer tubes; the openings at both ends of the first metal outer tube are respectively connected with a first cover plate in a sealing mode; the non-connecting port of the second metal outer tube is connected with a second cover plate in a sealing mode; an integral casting cavity is respectively formed between the first metal outer tube and first inner tube, between the second metal outer tube and second inner tube, and between the first and second cover plates; a core is cast in the cavity; and the core is made of polyurethane and formed by curing after mixing and reacting polyhydric alcohol and isocyanate in the volume ratio of 1:1. The invention can effectively reduce the stress peak in the tubular joint region, enhance the fatigue strength and have favorable material stability and durability.
Description
Technical field
The present invention relates to a kind of pipe node, be applied in ocean engineering and the civil engineering structure, be specially adapted to ocean platforms such as jacket, truss upright-column formula.
Background technology
At present, in the striding greatly of offshore platform structure or civil engineering, space structures, all form by pipe component with the pipe component connected node.Wherein, pipe node is offshore platform structure or the crucial position of space structures, also is simultaneously the weakest position, usually receives the effect of various loads.Particularly under marine environment; Pipe node and member junction stress high concentration are receiving under all kinds of dynamic load effects such as wind, wave and earthquake, and the destruction of fatigue, punching and other form is very easily taken place; Thereby reduce structure bearing capacity and rigidity, reduce application life.In case pipe node destroys, can cause total to lose efficacy, thereby influence stability of structure and safety.
Because in the ocean platform, steel pipe post will be arranged all kinds of pipelines and equipment, requires column must adopt hollow tube, therefore, pipe node adopts usually strengthens steel pipe node or the compound hollow tube node of steel/concrete.Wherein, the steel pipe node perhaps adopts high strength steel to improve the supporting capacity of node in the part through near steel pipe thickness strengthening node.But in marine environment; What pipe node mainly bore is dynamic loadings such as wind, wave and earthquake; The importance of its ductility, shock resistance and anti-fatigue performance is far longer than its supporting capacity, in order to improve these performances, adopts near steel pipe thickness of node or the local method that adopts high strength steel of strengthening usually; Several kinds of defectives below this method exists: 1, the raising of pipe node supporting capacity increases the rigidity of structure, and the ductility of structure reduces; 2, between pipe node and the steel pipe be the connected mode of welding, the influence that brings residual stress, and also along with the increasing of steel pipe thickness or intensity, the residual stress peak value will increase, and fatigue strength also can significantly descend.Performances such as the bearing capacity of the compound hollow tube node of steel/concrete, anti-flexing and antifatigue all have a very significant increase than the steel pipe node; Not enough below but the compound hollow tube node of steel/concrete exists: 1, the caking property between steel pipe and the concrete is not enough; Need to increase connectors such as peg; Obviously strengthen difficulty of construction and expense, and strengthen the welding residual stress in pipe node zone; 2, the compound hollow tube node of steel/concrete is through centrifuge spraying around tube wall, and inner layer pipe is not set, and causes layer of concrete to receive no tube wall constraint under the external force effect, and its supporting capacity descends; 3, the deadweight behind the gunning concrete strengthens in the steel pipe, and concrete tensile strength will be much smaller than its compressive strength, and when bearing dynamic loading, in case concrete cracking, its supporting capacity can obviously descend; 4, in the steel pipe layer of concrete is set after, only can effectively reduce the compression chord peak value of junction, and to receiving the tensile stress peak value invalid; 5, receiving under the marine environment effect (like chlorion etc.), endurance issues appears in concrete easily, thereby causes material property to lose efficacy.
Summary of the invention
The present invention is directed in the present offshore platform structure steel tube node and the compound hollow tube node of steel/concrete ductility is poor, shock resistance difference and the low deficiency of fatigue strength; A kind of steel/macromolecular material interlayer pipe node is provided; Possess good ductility, antifatigue and shock resistance, can improve bearing capacity, energy dissipation capacity and the stability of structure.
The technical scheme that the present invention adopts is: comprise first metal outer pipe and second metal outer pipe; One end of second metal outer pipe is fixedly connected the first metal outer pipe sidewall; First, second metal outer pipe inner chamber concentric gap respectively is with pipe in first, second; Be fixed with first, second locating ring that is stuck in first, second metal outer pipe inwall respective grooves on first, second outer wall of inner tube respectively, each evenly is provided with the through hole that distributes as net shape on first, second locating ring; The first metal outer pipe both ends open place, first cover plate that is tightly connected; The disconnected port of second metal outer pipe place second cover plate that is tightly connected; First metal outer pipe is provided with first capping of one or more fill orifices and this fill orifice that is tightly connected, and second metal outer pipe is provided with second capping of one or more steam vents and this steam vent that is tightly connected; Form integrated poured cavity between pipe, second metal outer pipe and the second interior pipe and first, second cover plate in said first metal outer pipe and first; In this cavity, be cast with core, core is polyurethane material and is that 1: 1 mixed reaction back is solidified and formed by volume by polyalcohol and isocyanates.
The invention has the beneficial effects as follows:
1, the present invention fills core in cavity; Core adopts high-intensity macromolecular material; This macromolecular material and steel have close resistance to compression and tension supporting capacity, good elongation per unit length and resistance to corrosion, can effectively reduce the peak stress in pipe node district, thereby improve its fatigue strength; Possess good stability of material, under complex environments such as ocean, have durability.
2, pipe node of the present invention adopts sandwich, can prevent that it from buckling failure, stable bearing capacity, fatigue resistance, energy dissipation capacity and the stability and the safety that improve structure effectively taking place.
3, locating ring of the present invention is arranged to engraved structure, and macromolecular material density is low, has alleviated construction weight and has made things convenient for various kinds of equipment and the layout of circuit.
Description of drawings
Fig. 1 is a structure explosive view of the present invention;
Fig. 2 is a three-dimensional structure diagram of the present invention;
Fig. 3 looks sectional view for master of the present invention;
Fig. 4 is the partial sectional view of Fig. 3 in the A-A position.
Among the figure: 1. first metal outer pipe; 2. second metal outer pipe; 3. pipe in first; 4. pipe in second; 5. core; 6-1. first locating ring; 6-2. second locating ring; 7-1. first cover plate; 7-2. second cover plate; 10. fill orifice; 11. steam vent; 12-1. first capping; 12-2. second capping.
The specific embodiment
Like Fig. 1-4; The present invention includes in first metal outer pipe 1, second metal outer pipe 2, first pipe 4 in the pipe 3 and second, wherein, an end of second metal outer pipe 2 is fixedly connected first metal outer pipe, 1 sidewall; First metal outer pipe, 1 concentric gap is enclosed within manages outside 3 in first; I.e. pipe 3 coaxial being placed in metal outer pipe 1 inner chamber in first, second metal outer pipe, 2 concentric gap are enclosed within second outside the pipe 4, i.e. pipe 4 coaxial being placed in second metal outer pipe, 2 inner chambers in second.In first, be fixedly connected first, second locating ring 6-1,6-2 respectively on pipe 4 outer walls in the pipe 3 and second; First, second locating ring 6-1,6-2 are stuck in the respective grooves of first metal outer pipe 1 and second metal outer pipe, 2 inwalls; With this position of pipe 4 in first metal outer pipe 1, second metal outer pipe, 2 inner chambers in pipe 3, second in fixing first; And, make first, second locating ring 6-1,6-2 be engraved structure at first, second locating ring 6-1, last each the even through hole that distributes as net shape that is provided with of 6-2.In first metal outer pipe 1, second metal outer pipe 2, first in the pipe 3 and second pipe 4 cross sections can be circle or regular polygon; The thickness of pipe of first metal outer pipe 1 and second metal outer pipe 2 is 2～30mm; The thickness of pipe of the pipe 3 and second interior pipe 4 is 0.5～30mm in first; First metal outer pipe 1 and second metal outer pipe 2 can be formed and/or had identical or different thickness by identical or different metal, and/or adopt identical or different surfacing.
Sentence the first cover plate 7-1 pipe 3 in first metal outer pipe 1 and first that is tightly connected at the both ends open of first metal outer pipe 1; Second metal outer pipe, 2 disconnected ports are sentenced second cover plate 7-2 pipe 4 the other end that is tightly connected in second metal outer pipe 2 and second in the pipe 4, the second and are stretched second metal outer pipe 2 in and be enclosuring structure.The first capping 12-1 that one or more fill orifices 10 is set on first metal outer pipe 1 and seals this fill orifice 10, the second capping 12-2 that one or more steam vents 11 is set on second metal outer pipe 2 and seals this steam vent 11.
The present invention is when implementing; Earlier first metal outer pipe 1 and second metal outer pipe 2 are formed each category node through welding or alternate manner; Can form T type structure by one first metal outer pipe 1 and one second metal outer pipe 2 fixing welding; Perhaps form K type structure, perhaps form structures such as X, Y type with other connected mode by one first metal outer pipe 1 and two second metal outer pipe 2 fixing welding.Then, again pipe 4 in the pipe 3, second in first metal outer pipe 1, second metal outer pipe 2, first is carried out surfacing, preferentially adopt 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, handle making its surface roughness reach the Sa2.5 level.In first metal outer pipe 1 and second metal outer pipe 2, respectively manage 4 in the pipe 3 and second in the coaxial placement first again, one or more fill orifice 10, steam vent 11 are set on first metal outer pipe 1, second metal outer pipe 2 then; Adopt first, second locating ring 6-1 of engraved structure, the position of 6-2 location first interior the pipe 3 and second interior pipe 4 again; Connect pipe 3, second metal outer pipe 2 and the second interior pipe 4 in first metal outer pipe 1 and first through first, second cover plate 7-1,7-2; Form whole cavity with this; At last core 5 is filled in this entire cavity through fill orifice 10, first, second capping of good seal 12-1,12-2 treat to get final product after core 5 solidifies.
First, second cover plate 7-1 of the present invention, uncured core 5 got in first, second in pipe 3,4 or overflows outside first, second metal outer pipe 1,2 when 7-2 can prevent to pour into a mould.First, second two locating ring 6-1,6-2 selects for use and core 5 has the material of bonds well performance, and is designed to engraved structure, and high molecular polymer flows in cavity when helping pouring into a mould.Pipe 3,4 can adopt the high molecular polymer material identical with core 5 in first, second, then need not its tube wall is carried out surfacing.Polyalcohol and isocyanates to forming core 5 should be tested, reach performance requirement after, polyalcohol and isocyanates are put into different containers respectively vacuumize processing, with sucking-off air wherein, simultaneously temperature is remained on 25 and spends.
1 embodiment of the present invention below is provided:
Embodiment
First metal outer pipe 1 and second metal outer pipe 2 are connected into T type pipe node structure, first metal outer pipe, 1 long 1200mm, external diameter 200mm, pipe thickness is 5mm; Second metal outer pipe, 2 long 600mm, external diameter 160mm, pipe thickness 3mm.Pipe 3 long 1200mm in first, external diameter 100mm, pipe thickness is 5mm; Pipe 4 long 550mm in second, external diameter 80mm, pipe thickness is 3mm.First, second metal outer pipe 1,2 and first, second interior pipe 3,4 all adopt the Q345 steel.Core 5 in first metal outer pipe 1 adopts polyurethane material, is shaped as ring-type, and thickness is 45mm; Core 5 in second metal outer pipe 2 also adopts polyurethane material, is shaped as ring-type, and thickness is 37mm.Fill orifice 10 is arranged on first metal outer pipe 1, and steam vent 11 is arranged on second metal outer pipe 2, and adopting diameter is the circular hole of 10mm, and fill orifice 10 is tried one's best away from the metal tube weld with steam vent 11 positions, to reduce Structural Influence.The first capping 12-1 of first metal outer pipe 1 adopts the plectane of thickness 5mm, and the second capping 12-2 of second metal outer pipe 2 adopts the plectane of thickness 3mm, and diameter is 10mm.
With manage in first, second metal outer pipe 1,2 and first, second 3,4 and core 5 contacted surfaces carry out the blasting treatment mode, require surface roughness to reach the Sa2.5 level; Coaxial respectively placement manages 3,4 in first, second in first, second metal outer pipe 1,2, and respectively through the fixing position of pipe 3,4 in first, second of first, second locating ring 6-1,6-2; Polyalcohol and isocyanates after even the mixing, are injected entire cavity through fill orifice 10 according to 1: 1 ratio, form core 5; First, second capping 12-1,12-2 are sealed fill orifice 10 and steam vent 11 respectively through welding manner, treat that core 5 is promptly removable after solidifying.
Claims (2)
1. steel/macromolecular material interlayer pipe node; Comprise first metal outer pipe (1) and second metal outer pipe (2); One end of second metal outer pipe (2) is fixedly connected first metal outer pipe (1) sidewall; It is characterized in that: said first, second metal outer pipe (1,2) inner chamber concentric gap respectively is with pipe (3,4) in first, second; Be fixed with first, second locating ring (6-1,6-2) that is stuck in first, second metal outer pipe (1,2) inwall respective grooves respectively on pipe (3,4) outer wall in first, second, evenly be provided with the through hole that distributes as net shape on first, second locating ring (6-1,6-2); First metal outer pipe (1) both ends open place, first cover plate (7-1) that is tightly connected; The disconnected port of second metal outer pipe (2) place second cover plate (7-2) that is tightly connected; First metal outer pipe (1) is provided with one or more fill orifices (10) and first capping (12-1) of this fill orifice (10) that is tightly connected, and second metal outer pipe (2) is provided with one or more steam vents (11) and second capping (12-2) of this steam vent (11) that is tightly connected; Form integrated poured cavity between pipe (4) and first, second cover plate (7-1,7-2) in pipe (3), second metal outer pipe (2) and second in said first metal outer pipe (1) and first; In this cavity, be cast with core (5), core (5) is mixed react after to solidify to form at 1: 1 for polyurethane material and by polyalcohol and isocyanates by volume; First, second metal outer pipe (1,2) adopts the Q345 steel, and pipe (3,4) adopts Q345 steel or employing and core (5) identical materials in first, second.
2. a kind of steel according to claim 1/macromolecular material interlayer pipe node; It is characterized in that: the cross section of first, second metal outer pipe (1,2) and first, second interior pipe (3,4) is circle or regular polygon; The tube thickness of first, second metal outer pipe (1,2) is 2～30mm, and tube thickness of pipe (3,4) is 0.5～30mm in first, second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010278806A CN101942865B (en) | 2010-09-10 | 2010-09-10 | Steel/high molecular material interlayer tubular joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010278806A CN101942865B (en) | 2010-09-10 | 2010-09-10 | Steel/high molecular material interlayer tubular joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101942865A CN101942865A (en) | 2011-01-12 |
| CN101942865B true CN101942865B (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010278806A Expired - Fee Related CN101942865B (en) | 2010-09-10 | 2010-09-10 | Steel/high molecular material interlayer tubular joint |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104612324B (en) * | 2014-12-22 | 2017-05-03 | 浙江交通职业技术学院 | An energy-dissipating stiffening steel polymer sandwich pipe and a manufacturing process thereof |
Citations (10)
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|---|---|---|---|---|
| CN1752368A (en) * | 2004-09-20 | 2006-03-29 | 朱勇 | Steel structure and fixing method thereof |
| CN2861333Y (en) * | 2005-12-22 | 2007-01-24 | 江南重工股份有限公司 | Compound joint in cantilevered space structure |
| CN2880950Y (en) * | 2006-01-25 | 2007-03-21 | 曹宝珠 | Steel pipe concrete truss node plate type node |
| CN101029503A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Beam and pile assembled node of precast and prestressed concrete structure |
| CN101059000A (en) * | 2007-03-22 | 2007-10-24 | 兰州理工大学 | Connecting structure for steel tube concrete beam and column node |
| CN101063319A (en) * | 2007-03-27 | 2007-10-31 | 广东省建筑设计研究院 | Node component used for connecting steel tube concrete column with building roof beam |
| CA2653168A1 (en) * | 2006-07-27 | 2008-01-31 | Yazaki Kako Corporation | Pipe joint |
| CN201228393Y (en) * | 2008-07-04 | 2009-04-29 | 沈阳建筑大学 | Semi-punched core node of hollow sandwich steel tube concrete column and steel girder |
| CN101435228A (en) * | 2008-12-19 | 2009-05-20 | 中国建筑设计研究院 | Composite K type node of steel tube component space |
| 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 CN201010278806A patent/CN101942865B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1752368A (en) * | 2004-09-20 | 2006-03-29 | 朱勇 | Steel structure and fixing method thereof |
| CN2861333Y (en) * | 2005-12-22 | 2007-01-24 | 江南重工股份有限公司 | Compound joint in cantilevered space structure |
| CN2880950Y (en) * | 2006-01-25 | 2007-03-21 | 曹宝珠 | Steel pipe concrete truss node plate type node |
| CA2653168A1 (en) * | 2006-07-27 | 2008-01-31 | Yazaki Kako Corporation | Pipe joint |
| CN101059000A (en) * | 2007-03-22 | 2007-10-24 | 兰州理工大学 | Connecting structure for steel tube concrete beam and column node |
| CN101063319A (en) * | 2007-03-27 | 2007-10-31 | 广东省建筑设计研究院 | Node component used for connecting steel tube concrete column with building roof beam |
| CN101029503A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Beam and pile assembled node of precast and prestressed concrete structure |
| WO2009124354A1 (en) * | 2008-04-10 | 2009-10-15 | Lu Papi & Associates Pty Ltd | Coupling with locking arrangements for tubular connections |
| CN201228393Y (en) * | 2008-07-04 | 2009-04-29 | 沈阳建筑大学 | Semi-punched core node of hollow sandwich steel tube concrete column and steel girder |
| CN101435228A (en) * | 2008-12-19 | 2009-05-20 | 中国建筑设计研究院 | Composite K type node of steel tube component space |
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| Publication number | Publication date |
|---|---|
| CN101942865A (en) | 2011-01-12 |
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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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Granted publication date: 20121024 Termination date: 20170910 |
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| CF01 | Termination of patent right due to non-payment of annual fee |