CN201400938Y - Grouting sleeve joint node - Google Patents
Grouting sleeve joint node Download PDFInfo
- Publication number
- CN201400938Y CN201400938Y CN2009200699805U CN200920069980U CN201400938Y CN 201400938 Y CN201400938 Y CN 201400938Y CN 2009200699805 U CN2009200699805 U CN 2009200699805U CN 200920069980 U CN200920069980 U CN 200920069980U CN 201400938 Y CN201400938 Y CN 201400938Y
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- steel pipe
- stirrup
- grouting sleeve
- utility
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Abstract
The utility model discloses a grouting sleeve joint node, which is mainly made up of an inner steel pipe (1) and an outer steel pipe (2), wherein, the inner steel pipe (1) is in coincidence with the axis of the outer steel pipe (2), the inner steel pipe (1) is inserted into the outer steel pipe (2) in an overlapped manner, and expansive cement mortar is poured into the clearance of the overlappingposition of the inner steel pipe (1) and the outer steel pipe (2) to form an expansive cement ring (3). The utility model has the advantages of excellent force transmission efficiency, superior performance, good fatigue performance, convenient construction and the like.
Description
Technical field
The utility model belongs to a kind of steel work joint construction of fixed buildings, is specifically related to a kind of structure of the steel pipe sleeve pipe connected node that is in the milk.
Background technology
What generally adopt on the steel tubular structure node connects at present is that welding is connected with flange.Welding is the method by heating, pressurization or both and usefulness, makes two pipe fittings produce the connected mode of combination between atom.It is exactly that two pipe fittings is fixed on the flange earlier separately that flange connects, and adds flange gasket between two flange, with bolton type of attachment together.But in when welding, localized hyperthermia can cause that stress is concentrated and defective such as the deformation of member, and what the problems referred to above became when welding especially at the scene is more outstanding.Solder technology has higher requirements to operator's technology, and the existence of weld defect tends to influence node strength and fatigue behaviour.In addition, generally need suitable welding environment during welding operation, in the high-altitude and the underwater operation inconvenience.Though it is convenient to adopt flange to connect mounting or dismounting, be beneficial to maintenance, can prevent to become flexible by applying pretightning force, can not cause junction material composition phase transformation, but flange has increased steel quantity consumption, at place, bolted slit the generation of corrosion is arranged easily in addition, lost efficacy, and adopt flange to connect requirement on machining accuracy also than higher thereby cause to connect.
Along with the extensive use of steel tubular structure, the connection of grouting steel pipe is arisen at the historic moment in specific application as a kind of novel steel tube structure link technique.Grouting sleeve connects the type of attachment that promptly connects the different steel pipe of two calibers by the fillers such as annular gap filling concrete slurry between internal and external casing.During the grouting sleeve of using connects at present, the bonding of cement paste and steel is to transmit the sole mode of load, therefore both surperficial bonding strengths have determined the axial bearing capacity of node, and this connected node has that power transmission efficiency is lower, the shortcoming of supporting capacity finite sum anti-fatigue performance difference.
The utility model content
At above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model provides that a kind of power transmission efficiency is good, superior performance, fatigue behaviour is good and the grouting sleeve connected node of easy construction, can be widely used in the connection of steel tube component.
Adopt following technical scheme for solving the problems of the technologies described above the utility model:
A kind of grouting sleeve connected node, its main part is made up of interior steel pipe and outer steel pipe, steel pipe and described outer steel pipe dead in line in described, steel pipe inserts in the described outer steel pipe and overlaps in described, the gap location at steel pipe and described outer steel tube lapping place is inserted swelling water mud in described, forms the expansive cement ring.
A kind of optimisation technique scheme as this programme is: be provided with stirrup in above-mentioned expansive cement ring, be surrounded on the described interior outer wall of steel pipe.Stirrup can be wire lath sheet of spirality stirrup or annular etc.
A kind of optimisation technique scheme as this programme is: be mixed with sand in the described expansive cement.
The beneficial effects of the utility model are: compare with welding, the utility model has improved structure impact resistance and endergonic ability, has strengthened the fatigue behaviour of connected node, and the factor of stress concentration is reduced significantly.The fitting operation aspect reaches when installing on the ground under water, and the utility model need not special safeguard procedures, and is not high to operator's technical requirements, and site assembly is oversimplified, and only needs the extremely short set-up time.Connection is compared with flange, and the utility model has reduced steel quantity consumption, and higher geometry harmony is arranged, and machining accuracy is not had too many requirement, and the requirement of node alignment error is not high yet.Compare with the grouting sleeve connected node that uses at present, the utility model has used expansive cement mortar, and prestressing force is produced by the expansion mortar expansion, is directly passed to inner and outer pipes, have the advantage that bearing capacity is big, processing is easy, requirement on machining accuracy is lower, and it is not obvious to degenerate in the use.
The utility model grouting sleeve connected node has good axially loaded, and flexural property and anti-fatigue performance are good, and has easy construction, cheap advantage, is very good steel pipe node type of attachment.The utility model can replace welding, flange connects and the present grouting sleeve type of attachment of using, and is of many uses.
Description of drawings
Fig. 1 is the structural diagrams of the utility model embodiment one.
Fig. 2 is the structural diagrams of the utility model embodiment two.
Fig. 3 is the structural diagrams of the utility model embodiment three.
Fig. 4 is a spirality stirrup structural representation.
The specific embodiment
Engaging accompanying drawing below is described in detail embodiment of the present utility model.
Embodiment one
As shown in Figure 1, this embodiment is the connected node of two kinds of nested overlap joints of different-diameter steel pipe, and large diameter steel pipe is outer steel pipe, and minor-diameter steel-tube is interior steel pipe.Interior steel pipe 1 is connected with outer steel pipe 2 ends, interior steel pipe 1 and outer steel pipe 2 deads in line, swelling water mud is filled between the overlap joint gap of described interior steel pipe 1 and outer steel pipe 2, form swelling water mud ring 3, be provided with stirrup 4 in the swelling water mud ring 3, stirrup 4 is looped around on described interior steel pipe 1 outer wall, and stirrup 4 is spirality (as shown in Figure 4).Stirrup 4 also can be taked other forms of stirrups such as circular ring metal net sheet.
Because perfusion swelling water mud between the internal and external casing slit, expansive cement volume expansion after fixed, and internal and external casing is to the constraint generation prestressing force of expansive cement, thereby increase the frictional force between steel pipe and the cement paste, this connected node relies on frictional force and the adhesion stress between steel pipe and the cement paste to carry out a power transmission.
Mainly by the decision of the expansion rate of expansive cement, swelling water mud ring 3 is the mixture of cement, expansion agent to the bearing capacity of this connected node, so the choosing of expansion agent, and the match ratio of expansion agent and cement affects the stress performance of this kind connected node to a great extent.In order to reduce the contraction after cement paste liquefies, also can in swelling water mud, can sneak into sand.
Because expansive cement compressive strength is high, but be subjected to pulling force easily chipping, can place stirrup in the inner and outer pipes gap, because the existence of stirrup can limit carrying out of crack, stop the cracked of expansive cement, thereby improved the bearing capacity of this kind utility model node and the performance of bearing reciprocal load.
Embodiment two,
As shown in Figure 2, present embodiment is outer steel pipe socket connected node outside the steel pipe in two, outer steel pipe 2 is enclosed within the link of two interior steel pipes 1 and 1 ', interior steel pipe 1, interior steel pipe 1 ' and outer steel pipe 2 deads in line, swelling water mud is filled between the overlap joint gap of described interior two interior steel pipes and outer steel pipe 2, form swelling water mud ring 3, be furnished with stirrup 4 in the swelling water mud ring 3, stirrup 4 is the spirality stirrup.
Embodiment three
As shown in Figure 3, present embodiment is the junction nodes of inner lining of steel pipe two outer steel tube lappings in a section.Interior steel pipe 1 liner is steel pipe 2 and 2 ' junction overlap joint outside two, outer steel pipe 2, outer steel pipe 2 ' and interior steel pipe 1 dead in line, swelling water mud is filled between the overlap joint gap of described interior two outer steel pipes and interior steel pipe 1, form swelling water mud ring 3, is furnished with stirrup 4 in the described swelling water mud ring 3, stirrup 4 is the spirality stirrup, also can take other stirrup form.
Preparation technology of the present utility model is as follows: determine the concrete size of outer and inner tube and the diameter of stirrup according to the requirement of architectural composition and structural bearing capacity.The processing of stirrup is finished in member processing factory, at the construction and installation scene foamed plastics is snapped in the outer tube to interior pipe and stretches into the end position of outer tube part to limit the length of grout compartment.Inner and outer pipes is accurately located, guarantee that two tubular axis lines overlap.Swelling water mud mixes and stirs by proportioning, will mix and stir the swelling water mud that finishes then and pour into gap between the inner and outer pipes, and the grouting back makes its vibration by method such as knocking, and helps the air in the swelling water mud to discharge, and guarantees the compactness of expansive cement.Get final product with plastic foil sealing maintenance at linkage section then.
More than a kind of grouting sleeve connected node that the utility model embodiment is provided be described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; part in specific embodiments and applications all can change; in sum; this description should not be construed as restriction of the present utility model, and all any changes of being made according to the utility model design philosophy are all within protection domain of the present utility model.
Claims (5)
1, a kind of grouting sleeve connected node, its main part is made up of interior steel pipe (1) and outer steel pipe (2), steel pipe (1) and described outer steel pipe (2) dead in line in described, steel pipe (1) inserts overlap joint in the described outer steel pipe (2) in described, it is characterized in that: the gap location of steel pipe (1) and described outer steel pipe (2) overlap joint is provided with swelling water mud in described, forms expansive cement ring (3).
2, a kind of grouting sleeve connected node according to claim 1 is characterized in that: be provided with stirrup in the described expansive cement ring (3), described stirrup is looped around on described interior steel pipe (1) outer wall.
3, a kind of grouting sleeve connected node according to claim 2 is characterized in that: described stirrup is spirality stirrup (4).
4, a kind of grouting sleeve connected node according to claim 2 is characterized in that: described stirrup is the wire lath sheet of annular.
5, according to claim 1 or 2 or 3 or 4 described a kind of grouting sleeve connected nodes, it is characterized in that: be mixed with sand in the described expansive cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200699805U CN201400938Y (en) | 2009-04-07 | 2009-04-07 | Grouting sleeve joint node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200699805U CN201400938Y (en) | 2009-04-07 | 2009-04-07 | Grouting sleeve joint node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201400938Y true CN201400938Y (en) | 2010-02-10 |
Family
ID=41660737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200699805U Expired - Fee Related CN201400938Y (en) | 2009-04-07 | 2009-04-07 | Grouting sleeve joint node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201400938Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644325A (en) * | 2012-03-31 | 2012-08-22 | 中国海洋石油总公司 | Grouting connection node for deepwater floating type platform steel structures |
| CN102692064A (en) * | 2011-03-22 | 2012-09-26 | 上海零碳建筑科技有限公司 | A wind pressure and temperature pressure-driven air delivery and exhaust energy recovery system |
| CN106245765A (en) * | 2016-09-23 | 2016-12-21 | 沈阳建筑大学 | Slip casting joint steel pipe apparatus structure and method of attachment |
-
2009
- 2009-04-07 CN CN2009200699805U patent/CN201400938Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102692064A (en) * | 2011-03-22 | 2012-09-26 | 上海零碳建筑科技有限公司 | A wind pressure and temperature pressure-driven air delivery and exhaust energy recovery system |
| CN102692064B (en) * | 2011-03-22 | 2015-03-04 | 上海零碳建筑科技有限公司 | A wind pressure and temperature pressure-driven air delivery and exhaust energy recovery system |
| CN102644325A (en) * | 2012-03-31 | 2012-08-22 | 中国海洋石油总公司 | Grouting connection node for deepwater floating type platform steel structures |
| CN102644325B (en) * | 2012-03-31 | 2014-07-30 | 中国海洋石油总公司 | Grouting connection node for deepwater floating type platform steel structures |
| CN106245765A (en) * | 2016-09-23 | 2016-12-21 | 沈阳建筑大学 | Slip casting joint steel pipe apparatus structure and method of attachment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20120407 |