CN104100010A - Self-adapting concrete filled steel tube joint for emergency maintenance - Google Patents

Self-adapting concrete filled steel tube joint for emergency maintenance Download PDF

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Publication number
CN104100010A
CN104100010A CN201410388573.6A CN201410388573A CN104100010A CN 104100010 A CN104100010 A CN 104100010A CN 201410388573 A CN201410388573 A CN 201410388573A CN 104100010 A CN104100010 A CN 104100010A
Authority
CN
China
Prior art keywords
steel tube
concrete
tube joint
concrete filled
filled steel
Prior art date
Application number
CN201410388573.6A
Other languages
Chinese (zh)
Inventor
陈辉国
任俊儒
杜江
Original Assignee
陈辉国
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 陈辉国 filed Critical 陈辉国
Priority to CN201410388573.6A priority Critical patent/CN104100010A/en
Publication of CN104100010A publication Critical patent/CN104100010A/en

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Abstract

The invention discloses a self-adapting concrete filled steel tube joint for emergency maintenance. The self-adapting concrete filled steel tube joint for the emergency maintenance is composed of a connecting piece (3) and a chuck (4) in a welding mode. An upper steel tube and a lower steel tube are abutted to each other through a locating tooth slot (7) in the chuck (4), fast-setting fast-hardening concrete is poured in a steel tube joint, after the condensation of the concrete, the concrete filled steel tube joint is anchored quickly by means of the bonding force between the concrete and the connecting piece (3). The steel tube joint is used with the fast-setting fast-hardening concrete, and the concrete filled steel tube joint can be connected reliably in short time. The self-adapting concrete filled steel tube joint for the emergency maintenance has advantages that the joint has very high geometrical compatibility, the node mounting precision requirement is low, and the joint can be totally prefabricated in the factory according to different steel pipe sizes and intensity requirements or assembled on site to facilitate constructing; the connection between the steel tubes is ensured by the bonding force between the concrete and the connecting piece, the reliability is high, the steel tube joint appearance is rarely influenced, and the steel tube joint is suitable for the emergency maintenance.

Description

Self adaptation concrete filled steel tube jointing for a kind of repairing

Technical field

The present invention relates to engineering first-aid repair field, specifically a kind of novel steel tube concrete jointing.

Background technology

The engineering first-aid repair job requirements engineering time is short, and operating technology is simple, and structure Developed fiber strength is fast.Traditional concrete filled steel tube connects employing welding conventionally, and flange connects, and sleeve pipe connects.Welding can guarantee the tight connection of steel tube component, and Path of Force Transfer is clear and definite, simple structure, and effect is attractive in appearance,, but solder technology is had relatively high expectations, easily produce defect, be unfavorable for site operation; It is by steel tube component end fixed flange that flange connects, then by two flange by the method for attachment of bolton, although easy construction, too high to the requirement on machining accuracy of interface unit, cost has high input, and Nodes has tied up substantial radial space; It is that internal and external casing is coaxially overlapped that sleeve pipe connects, between internal and external casing, pour into expansive cement and set up shearing-resistant member, rely on bonding rubbing action and the method for attachment of combination, technology is simple and practical, but node processing is had relatively high expectations, sleeve pipe bond length is large, has greatly promoted steel quantity consumption, also tie up a large amount of axial spaces, be difficult to realize high-strength tensile and pouring simultaneously.

Above method need to be processed steel pipe in advance, and construction requirement is high, speed is slow, is difficult to adapt to the requirement that the engineering first-aid repair requirement construction period is short, Developed fiber strength is fast.

Summary of the invention

The present invention is directed to the actual needs of salvaging, make full use of jointing and concrete from anchorage effect, solve the problem that existing concrete filled steel tube method of attachment exists, provide a kind of and can guarantee concrete filled steel tube connected node intensity and fastness, can realize again repairing operation fast standard, self adaptation concrete filled steel tube jointing for safe and reliable repairing, this concrete filled steel tube jointing is welded by connector and chuck, steel pipe forms docking by the positioning tooth groove on chuck, in coupling inside, build fast solidifying fast setting concrete, by the adhesion stress forming with connector after concrete coagulation realize concrete filled steel tube joint fast from anchoring.

When described chuck is mainly used in constructing, locate upper and lower steel pipe and be fixedly connected with joint; Connector and concrete form after integral body, are mainly used in providing anchored force joint steel pipe concrete, and the rear interior bag layer of concrete of having constructed, steel pipe, jointing, external wrapping concrete layer pass through offered hole formation integral body.

Described connector can adopt plain bars, also can adopt band through hole steel disc uniform welding in chuck inner side.

The through hole of offering on described steel bushing connector barrel is circular port or square opening.

The arrangement of described through hole can be uniformly distributed layout by rectangular array, and layout also can be dislocatedly distributed.

Be different from other methods of attachment, concrete filled steel tube jointing provided by the present invention has the following advantages:

The one, jointing provided by the present invention has higher geometry harmony, node installation precision less demanding, does not have very high requirement to operator's technology, and jointing can be integral prefabricated in factory according to different steel pipe sizes and requirement of strength, also can Assembling, constructability.

The 2nd, there is adaptive feature.By the through hole on connector, after concreting, jointing, concrete and steel pipe form integral body, take full advantage of the anchored force self forming between concrete and jointing, good integrity, avoided traditional jointing to adopt the problem of the construction complexity that mechanical connection or welding cause, and to coupling position appearance effects little.

The 3rd, meet engineering first-aid repair requirement.Use jointing provided by the present invention can complete connection and the concreting of steel pipe simultaneously, do not need steel pipe to process.Be used in conjunction with fast solidifying quick setting and rapid hardening concrete, only need the extremely short set-up time just can reliably to connect by implementation structure, rapidly Developed fiber strength.

Accompanying drawing explanation

Fig. 1 is the concrete filled steel tube jointing structural representation of the embodiment of the present invention.

Fig. 2 is the concrete filled steel tube jointing section of structure in the present embodiment.

Fig. 3 is that of the present invention to take band through hole steel bushing be connector concrete filled steel tube jointing sectional drawing.

Fig. 4 is that of the present invention to take band through hole steel bushing be connector concrete filled steel tube jointing three-dimensional structure diagram.

Fig. 5 is the concrete filled steel tube jointing sectional drawing that reinforcing bar is connector of take of the present invention.

Fig. 6 is the concrete filled steel tube jointing sectional drawing that to take with through hole steel disc be connector of the present invention.

Fig. 7 is a kind of expansion distribution schematic diagram that the tube wall of sleeve is offered square through hole.

Fig. 8 is the another kind expansion distribution schematic diagram that the tube wall of sleeve is offered square through hole.

Fig. 9 is a kind of expansion distribution schematic diagram that the tube wall of sleeve is offered manhole.

Figure 10 is the another kind expansion distribution schematic diagram that the tube wall of sleeve is offered manhole.

In accompanying drawing, the upper steel pipe of 1-, steel pipe under 2-, 3-is with through hole steel bushing (connector), 4-chuck, 5-quick setting and rapid hardening concrete, 6-through hole, 7-teeth groove, 8-reinforcing bar (connector), 9-is with through hole steel disc (connector).

The specific embodiment

The present invention is mainly by making full use of the anchoring effect between jointing and steel duct concrete, by quick setting and rapid hardening concrete, provide at short notice higher adhesion strength, for concrete-filled steel tube construction provides a kind of quick and adaptive anchor connection method.

Concrete filled steel tube jointing shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 is to be welded into integral body by connector 3,4 two separating members of chuck.Chuck 4 is all rounded ring bodies of an interior outer rim, makes steel pipe 1 on it, and lower steel pipe 2 closely meshes and align the teeth groove 7 of location with it.Connector 3 external diameters are less than steel pipe, and outer wall is evenly offered through hole 6.Interior Bao Kuaining quick setting and rapid hardening layer of concrete 5, steel pipe 1(2), connector 3, external wrapping concrete layer 5 pass through offered hole 7 and form whole.

Described connector 3, can select reinforcing bar 8 and chuck 4 welding (as Fig. 5), also can select steel disc 9 and chuck 4 welding (as Fig. 6) with through hole.

Described connector 3(9) the rectangular array of through hole 6 of offering is uniformly distributed (as Fig. 7, Fig. 9) or is be dislocatedly distributed (as Fig. 8, Figure 10).Described connector 3(9) through hole of offering is square opening (as Fig. 7, Fig. 8) or manhole (as Fig. 9, Figure 10).

Described quick setting and rapid hardening concrete requires the initial setting time to be not more than 20min, and 2h intensity is not less than 20MPa.

Claims (3)

1. a NEW ADAPTIVE concrete filled steel tube jointing, it is welded by connector (3) and chuck (4), by the location teeth groove (7) on chuck (4), upper steel pipe (1) forms and docks with lower steel pipe (2), in coupling inside, build fast solidifying fast setting concrete, by the adhesion stress forming with connector (3) after concrete coagulation realize concrete filled steel tube joint fast from anchoring.
2. its connector according to claim 1 (3), can select plain bars (8), also can select the steel disc (9) with through hole.
3. band through hole steel disc according to claim 2 (9), its perforate mode can be for square opening, also can be circular port, and its via arrangement can be rectangular array and is evenly arranged, also can be and be dislocatedly distributed, its effect is the formation that guarantees bolting force between concrete and connector (3).
CN201410388573.6A 2014-08-08 2014-08-08 Self-adapting concrete filled steel tube joint for emergency maintenance CN104100010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410388573.6A CN104100010A (en) 2014-08-08 2014-08-08 Self-adapting concrete filled steel tube joint for emergency maintenance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410388573.6A CN104100010A (en) 2014-08-08 2014-08-08 Self-adapting concrete filled steel tube joint for emergency maintenance

Publications (1)

Publication Number Publication Date
CN104100010A true CN104100010A (en) 2014-10-15

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Family Applications (1)

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CN201410388573.6A CN104100010A (en) 2014-08-08 2014-08-08 Self-adapting concrete filled steel tube joint for emergency maintenance

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018152956A1 (en) * 2017-02-23 2018-08-30 青岛理工大学 Assembled-type round steel pipe casing fiber-reinforced concrete column connecting node and mounting method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201080609Y (en) * 2007-06-20 2008-07-02 林启东 Prestressed concrete pipe pile connecting component
US20080196341A1 (en) * 2007-02-15 2008-08-21 Korea University Industry and Academy Cooperation Foundation Modular Column System Using Internally Confined Hollow Column Unit and Method of Constructing the Same
CN202171076U (en) * 2011-07-21 2012-03-21 天津市宝丰钢管厂 Novel steel tube connecting way
CN102561528A (en) * 2012-03-05 2012-07-11 河北联合大学 Concrete-filled steel tube connector and construction method thereof
CN102966185A (en) * 2012-12-06 2013-03-13 河北联合大学 Novel concrete-filled steel tube connection joint and construction method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080196341A1 (en) * 2007-02-15 2008-08-21 Korea University Industry and Academy Cooperation Foundation Modular Column System Using Internally Confined Hollow Column Unit and Method of Constructing the Same
CN201080609Y (en) * 2007-06-20 2008-07-02 林启东 Prestressed concrete pipe pile connecting component
CN202171076U (en) * 2011-07-21 2012-03-21 天津市宝丰钢管厂 Novel steel tube connecting way
CN102561528A (en) * 2012-03-05 2012-07-11 河北联合大学 Concrete-filled steel tube connector and construction method thereof
CN102966185A (en) * 2012-12-06 2013-03-13 河北联合大学 Novel concrete-filled steel tube connection joint and construction method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018152956A1 (en) * 2017-02-23 2018-08-30 青岛理工大学 Assembled-type round steel pipe casing fiber-reinforced concrete column connecting node and mounting method
US10851537B2 (en) 2017-02-23 2020-12-01 Chunwei Zhang Assemblable structural column joint connection using fiber-reinforced concrete filled round double steel tubes and mounting method thereof

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Application publication date: 20141015