CN204938757U - Connecting structure of crane beam and bracket - Google Patents
Connecting structure of crane beam and bracket Download PDFInfo
- Publication number
- 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
- crane beam
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 75
- 239000010959 steel Substances 0.000 claims abstract description 75
- 230000006378 damage Effects 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
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- Joining Of Building Structures In Genera (AREA)
Abstract
The utility model discloses a connection structure of crane beam and bracket, including crane beam and the bracket of setting on the bent frame post, pre-buried steel sheet of bracket and the pre-buried steel sheet of crane beam have been arranged between bracket and the crane beam, have arranged a plurality of joint bars on the bracket, the joint bar passes anchor behind the pre-buried steel sheet of bracket and the pre-buried steel sheet of crane beam respectively and goes into the crane beam, the crane beam is cast-in-place continuous crane beam to pour and pour after the completion at the bracket, the lacing wire has been put to the pre-buried steel sheet of crane beam and the pre-buried steel sheet back equipartition of bracket, all be equipped with the diameter slightly on the pre-buried steel sheet of crane beam and the pre-buried steel sheet of bracket and be greater than the thru hole of joint bar. The utility model discloses a set up pre-buried steel sheet and joint bar simultaneously, both avoided the contact surface to take place the possibility of super-pressure destruction, can effectively resist horizontal load and the horizontal internal force of crane beam again. The bracket and the crane beam are ensured to be connected stably and reliably, and stable and safe operation of a factory building is facilitated.
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)
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CN201520621140.0U CN204938757U (en) | 2015-08-18 | 2015-08-18 | Connecting structure of crane beam and bracket |
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CN201520621140.0U CN204938757U (en) | 2015-08-18 | 2015-08-18 | Connecting structure of crane beam 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 thereof |
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 thereof |
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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