CN204938757U - The connection structure of a kind of crane girder and bracket - Google Patents
The connection structure of a kind of crane girder and bracket Download PDFInfo
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- CN204938757U CN204938757U CN201520621140.0U CN201520621140U CN204938757U CN 204938757 U CN204938757 U CN 204938757U CN 201520621140 U CN201520621140 U CN 201520621140U CN 204938757 U CN204938757 U CN 204938757U
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- bracket
- crane girder
- embedded steel
- steel slab
- connection structure
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Abstract
The utility model discloses the connection structure of a kind of crane girder and bracket, comprise crane girder and be arranged on the bracket on bent columns, bracket pre-embedded steel slab and crane girder pre-embedded steel slab is furnished with between described bracket and crane girder, bracket is furnished with some joint bars, described joint bar anchors in crane girder after being each passed through bracket pre-embedded steel slab and crane girder pre-embedded steel slab, described crane girder is cast-in-place continuous crane girder, and build after bracket has been built, described crane girder pre-embedded steel slab and the bracket pre-embedded steel slab back side are all furnished with lacing wire, described crane girder pre-embedded steel slab and bracket pre-embedded steel slab are equipped with the open-work of diameter slightly larger than joint bar.The utility model, by arranging pre-embedded steel slab and joint bar simultaneously, has both avoided the possibility that contact surface generation superpressure is destroyed, has been highly resistant to again horizontal loading and crane girder Transverse Internal Force.Ensure that the stable connection of bracket and crane girder is reliable, be conducive to factory building stability and safety and run.
Description
Technical field
The utility model relates to the connection structure of a kind of crane girder and bracket, is mainly applicable to hydropower station factory building, belongs to hydroelectric project technical field.
Background technology
In hydropower factory building, crane girder directly bears the load that crane in bridge type transmits, then load is passed to bent columns by bracket, bracket and crane girder connecting portion will bear larger local pressure, therefore, the operation of connection to factory building stability and safety handling crane girder and bracket well is most important.
For solving the problem, the mode that cast-in-place crane girder is connected with bracket mainly contains the following two kinds:
(1) reserved joint bar on bracket, after water continuous crane girder, be connected by joint bar between crane girder with bracket; This connection mode takes joint bar to connect bracket and crane girder, reliable and stable, opposing horizontal force and Transverse Internal Force effect better, but bracket and crane girder area of contact less, easily there is local failure in cement concrete under the effect of crane in bridge type load.
(2) at bracket top pre-embedded steel slab, after when watering continuous crane girder bottom it same pre-embedded steel slab, by Plate Welding bottom bracket pre-embedded steel slab and crane girder after cement concrete form removal; This connection mode is bottom crane girder and bracket top is all furnished with steel plate, and contact surface local pressure resistance is strong, but is connected because both adopt weld all around to stitch, and the effect of opposing horizontal force and Transverse Internal Force effect is poor.
Utility model content
The purpose of this utility model is, for the deficiency existing for existing continuous crane girder and bracket connection mode, to provide the connection structure of a kind of crane girder and bracket.This connection structure can well resist bracket Nodes horizontal force and Transverse Internal Force, can be supplied to again the enough compressive strength of contact surface and destroy to prevent local compression, reach the effect that prior art can not be taken into account.
The utility model is achieved by following technical solution.
The connection structure of a kind of crane girder and bracket, comprise crane girder and be arranged on the bracket on bent columns, bracket pre-embedded steel slab and crane girder pre-embedded steel slab is furnished with between described bracket and crane girder, bracket is furnished with some joint bars, and described joint bar anchors in crane girder after being each passed through bracket pre-embedded steel slab and crane girder pre-embedded steel slab.
Described crane girder is cast-in-place continuous crane girder, and builds after bracket has been built.
Described crane girder pre-embedded steel slab width 100mm larger than bracket width, height is identical with crane girder web thickness.
Described crane girder pre-embedded steel slab and the bracket pre-embedded steel slab back side are all furnished with lacing wire.
Described crane girder pre-embedded steel slab and bracket pre-embedded steel slab are equipped with the open-work of diameter slightly larger than joint bar.
Described bracket pre-embedded steel slab width is identical with bracket width, the large 100mm of aspect ratio crane girder web thickness.
Described lacing wire all adopts weld all around to be connected with crane girder pre-embedded steel slab and bracket pre-embedded steel slab.
1 anchorage length in bracket and crane girder is respectively stretched at described joint bar two ends.
Described joint bar diameter is 25mm.
The beneficial effects of the utility model are:
Compared with prior art, the utility model, by arranging pre-embedded steel slab and joint bar simultaneously, has both avoided the possibility that contact surface generation superpressure is destroyed, has been highly resistant to again horizontal loading and crane girder Transverse Internal Force.Ensure that the stable connection of bracket and crane girder is reliable, be conducive to factory building stability and safety and run.
Accompanying drawing explanation
Fig. 1 is cross-sectional configuration schematic diagram of the present utility model;
Fig. 2 is the A-A direction view of Fig. 1;
Fig. 3 is the planar structure schematic diagram of crane girder pre-embedded steel slab in the utility model;
Fig. 4 is the planar structure schematic diagram of bracket pre-embedded steel slab in the utility model.
In figure: 1-bracket, 2-bent columns, 3-crane girder, 4-crane girder pre-embedded steel slab, 5-bracket pre-embedded steel slab, 6-joint bar, 7-lacing wire, 8-open-work, 9-weld seam.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figures 1 to 4, the connection structure of a kind of crane girder described in the utility model and bracket, comprise crane girder 3 and be arranged on the bracket 1 on bent columns 2, bracket pre-embedded steel slab 5 and crane girder pre-embedded steel slab 4 is furnished with between described bracket 1 and crane girder 3, bracket 1 is furnished with some joint bars 6, and described joint bar 6 anchors in crane girder 3 after being each passed through bracket pre-embedded steel slab 5 and crane girder pre-embedded steel slab 4.In actual applications, described joint bar 6 is divided into two arrangements to put.The technical program is compared with relevant art, and when crane girder of the prior art and bracket adopt merely joint bar to be connected, under the effect of crane in bridge type load, crane girder and bracket footprint pressure are comparatively large, superpressure easily occurs and destroys; When adopting Plate Welding to connect, again can not actv. opposing horizontal loading and crane girder Transverse Internal Force.Adopt the connection structure described in the technical program, owing to existing while pre-embedded steel slab and joint bar, both avoided the possibility that contact surface generation superpressure is destroyed, and be highly resistant to again horizontal loading and crane girder Transverse Internal Force.
Described crane girder 3 is cast-in-place continuous crane girder, and builds after bracket 1 has been built.
Described crane girder pre-embedded steel slab 4 width 100mm larger than bracket 1 width.Like this, pre-embedded steel slab bottom crane girder can be made to form faulting of slab ends at Width and bracket top pre-embedded steel slab, be convenient to implement fillet weld at pre-embedded steel slab Width two ends, bracket top and connect two pre-embedded steel slabs, height is identical with crane girder 3 web thickness.Wherein pre-embedded steel slab thickness is 20mm.
Described crane girder pre-embedded steel slab 4 back side is furnished with lacing wire 7, and lacing wire 7 adopts weld all around to be connected with crane girder pre-embedded steel slab 4, and crane girder pre-embedded steel slab 4 is provided with the open-work 8 of diameter slightly larger than joint bar 6, for passing joint bar 6.
Described bracket pre-embedded steel slab 5 width is identical with bracket 1 width, the large 100mm of aspect ratio crane girder 3 web thickness.Like this, pre-embedded steel slab bottom crane girder can be made to form faulting of slab ends in short transverse and bracket top pre-embedded steel slab, be convenient to implement fillet weld at pre-embedded steel slab short transverse two ends, bracket top and connect two pre-embedded steel slabs, wherein crane girder 3 web thickness is 20mm.
Described bracket pre-embedded steel slab 5 back side is furnished with lacing wire 7, and lacing wire adopts weld all around to be connected with 7 bracket pre-embedded steel slabs 5, and bracket pre-embedded steel slab 5 is provided with the open-work 8 of diameter slightly larger than joint bar 6, for passing joint bar 6.
1 anchorage length in bracket 1 and crane girder 3 is respectively stretched at described joint bar 6 two ends.Wherein, 1 anchorage length equals 50d, and d is bar diameter.
Described joint bar 6 diameter is 25mm.
The utility model, when constructing, mainly carries out in accordance with the following steps:
A, build bracket concrete: the bracket pre-embedded steel slab 5 and joint bar 6 that are welded with lacing wire 7 are fixed on bracket 1 assigned address, and water bracket 1 cement concrete.Before fixing bracket pre-embedded steel slab 5, the good reinforcing bar of colligation has been existed side by side mould;
B, build crane girder cement concrete: reach design strength and after form removal until bracket in step a 1 cement concrete, colligation crane girder 3 reinforcing bar fixed crane beam pre-embedded steel slab 4 to relevant position, by joint bar 6 reserved on bracket 1 through open-work 8 corresponding on crane girder pre-embedded steel slab 4, then formwork erection build crane girder 3 cement concrete;
C, welding crane girder pre-embedded steel slab and bracket pre-embedded steel slab: reach design strength until crane girder in step b 3 cement concrete and after form removal, crane girder pre-embedded steel slab 4 welded with bracket pre-embedded steel slab 5.
Joint bar 6 in described step a is imbedded when bracket 1 is built in bracket 1 cement concrete with bracket pre-embedded steel slab 5 simultaneously.
Joint bar 6 upper end anchoring when building crane girder 3 in described step b enters in the cement concrete of crane girder 3.
In described step c, crane girder pre-embedded steel slab 4 welds after the form removal of crane girder 3 cement concrete with bracket pre-embedded steel slab 5, and welding adopts weld all around, and weld seam 9 is arranged at crane girder web both sides and bracket 1 Width both sides.
The utility model success is applied in Laos's south bank Hydropower Project house bent frame post and crane girder structure, and structure bears the test of unit heaviest piece lifting load.For improving the pressure of crane girder and bent columns bracket contact surface, the load-carrying capacity in enhanced level direction serves good effect, has the prospect of popularization.
Claims (9)
1. the connection structure of a crane girder and bracket, it is characterized in that: comprise crane girder (3) and be arranged on the bracket (1) on bent columns (2), bracket pre-embedded steel slab (5) and crane girder pre-embedded steel slab (4) is furnished with between described bracket (1) and crane girder (3), bracket (1) is furnished with some joint bars (6), and described joint bar (6) anchors in crane girder (3) after being each passed through bracket pre-embedded steel slab (5) and crane girder pre-embedded steel slab (4).
2. the connection structure of a kind of crane girder according to claim 1 and bracket, is characterized in that: described crane girder (3) is cast-in-place continuous crane girder, and builds after bracket (1) has been built.
3. the connection structure of a kind of crane girder according to claim 1 and bracket, it is characterized in that: described crane girder pre-embedded steel slab (4) width 100mm larger than bracket (1) width, height is identical with crane girder (3) web thickness.
4. the connection structure of a kind of crane girder according to claim 1 and bracket, is characterized in that: described crane girder pre-embedded steel slab (4) and bracket pre-embedded steel slab (5) back side are all furnished with lacing wire (7).
5. the connection structure of a kind of crane girder according to claim 1 and bracket, is characterized in that: described crane girder pre-embedded steel slab (4) and bracket pre-embedded steel slab (5) are equipped with the open-work (8) of diameter slightly larger than joint bar (6).
6. the connection structure of a kind of crane girder according to claim 1 and bracket, it is characterized in that: described bracket pre-embedded steel slab (5) width is identical with bracket (1) width, the large 100mm of aspect ratio crane girder (3) web thickness.
7. the connection structure of a kind of crane girder according to claim 4 and bracket, is characterized in that: described lacing wire (7) all adopts weld all around to be connected with crane girder pre-embedded steel slab (4) and bracket pre-embedded steel slab (5).
8. the connection structure of a kind of crane girder according to claim 1 and bracket, is characterized in that: 1 anchorage length in bracket (1) and crane girder (3) is respectively stretched at described joint bar (6) two ends.
9. the connection structure of a kind of crane girder according to claim 1 and bracket, is characterized in that: described joint bar (6) diameter is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520621140.0U CN204938757U (en) | 2015-08-18 | 2015-08-18 | The connection structure of a kind of crane girder and bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520621140.0U CN204938757U (en) | 2015-08-18 | 2015-08-18 | The connection structure of a kind of crane girder and bracket |
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| CN204938757U true CN204938757U (en) | 2016-01-06 |
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| CN201520621140.0U Active CN204938757U (en) | 2015-08-18 | 2015-08-18 | The connection structure of a kind of crane girder and bracket |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113636A (en) * | 2015-08-18 | 2015-12-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Connecting structure of crane beam and bracket and construction method of connecting structure |
| CN108726368A (en) * | 2018-06-04 | 2018-11-02 | 河南罡源电子科技有限公司 | A kind of crane fixing device and its construction method |
-
2015
- 2015-08-18 CN CN201520621140.0U patent/CN204938757U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113636A (en) * | 2015-08-18 | 2015-12-02 | 中国电建集团贵阳勘测设计研究院有限公司 | Connecting structure of crane beam and bracket and construction method of connecting structure |
| CN108726368A (en) * | 2018-06-04 | 2018-11-02 | 河南罡源电子科技有限公司 | A kind of crane fixing device and its construction method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |