CN205444990U - Large -span is prefabricated platform canopy frame entirely - Google Patents
Large -span is prefabricated platform canopy frame entirely Download PDFInfo
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- CN205444990U CN205444990U CN201521137109.6U CN201521137109U CN205444990U CN 205444990 U CN205444990 U CN 205444990U CN 201521137109 U CN201521137109 U CN 201521137109U CN 205444990 U CN205444990 U CN 205444990U
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- arch beam
- box type
- steel
- girder
- arch
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Abstract
The utility model discloses a large -span is prefabricated platform canopy frame entirely, including the box girder, along box girder length direction interval arrangement and rather than a plurality of arch crossbeams of fixed connection, with box girder parallel arrangement's steel purlin to and be used for holding in the palm steel purlin fixed connection in the purlin of arch crossbeam. The utility model has the advantages of the bearing capacity is big, the girder is stable and antitorque commentaries on classics ability dynamic height, and convenient and fast more makes and construct to and be convenient for control construction quality.
Description
Technical field
This utility model includes the building of special purpose or similar structures, especially a kind of platform awning frame.
Background technology
Along with the increase of human cost and Party A unit in charge of construction's construction speed is required the most harsh, in order to reduce manpower, the input of time and the restriction of climate condition, fabricated construction just arises at the historic moment.
Existing steel construction is because it is by the yoke of the aspect such as rigidity and stability so that the span of structure is restricted.For common steel construction, such as the span of structure to be increased, the sectional area of beam need to be increased increasing rigidity and reduce amount of deflection, but dead load will be increased and cost causes vicious cycle.Additionally, one important constraints when traditional I-shaped Liangqi stability is structure design, its bearing capacity can not give full play to.
Utility model content
Utility model purpose: provide a kind of complete prefabricated platform awning frame of large span, to solve the problems referred to above that prior art exists.
Technical scheme: a kind of complete prefabricated platform awning frame of large span, including box type girder, arrange along box type girder length direction interval and the some arch beams that are connected fixing with its (box type girder), the steel purlin bar be arrangeding in parallel with described box type girder, and for steel purlin bar being fixedly connected on the purlin torr of arch beam.
Further, the cross section of described arch beam is I shape, and from one end of arch beam to the other end, the height of web is first gradually reduced, after become larger.The junction of described box type girder and arch beam is provided with between connecting plate, connecting plate and box type girder and arch beam and is bolted.Described purlin torr is angle steel, is bolted between purlin torr and arch beam and steel purlin bar.The cross section of described steel purlin bar is c-type or Z-type.Or, described steel purlin bar is thin-wall channel.
Beneficial effect: this utility model has that bearing capacity is big, girder stability and anti-torsion ability high, make and construct more convenient, and being easy to the advantage controlling construction quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of this novel embodiment.
Fig. 2 is the partial enlarged drawing of embodiment described in Fig. 1.
Fig. 3 is the structural representation of arch beam.
Fig. 4 is box type girder and the partial enlarged drawing of arch beam junction.
Fig. 5 is arch beam and the partial enlarged drawing of purlin junction.
Detailed description of the invention
As it is shown in figure 1, in this embodiment, awning frame has arch beam 2, box type girder 1, steel purlin bar 3, and purlin torr 4 and connecting plate 5.It should be noted that the quantity of arch beam is relevant to the spacing of the length of awning frame and arch beam.In this embodiment, arch beam is 6, but when implementing, the quantity of arch beam, the length of awning frame all can design according to actual needs.
With reference to Fig. 1, in this embodiment, arch beam is evenly arranged along the direction of detailed box type girder length, and i.e. in terms of the direction of box type girder length, each predetermined distance arranges an arch beam.Along the direction of arch beam length, box type girder is fixed on the two ends of arched girder, and steel purlin bar is positioned at the middle part of arch beam.It is connected by connecting plate is fixing between arch beam with box type girder.Steel purlin bar be arranged in parallel with box type girder, i.e. the direction along awning frame length is laid, and this is designed as decision design, it is also possible to be slightly tilted.Steel purlin bar is connected by purlin torr and arch beam are fixing.
As in figure 2 it is shown, arch beam two ends respectively have a level connection joint portion, box type girder is fixedly connected on herein.Piece purlin is along the middle of arch beam, and another two purlin torr are uniformly distributed in its both sides.It should be noted that this figure is perspective view, from this figure, visible box type girder and the connected mode of arch beam, i.e. by plane steel plate or L-type connecting plate, be connected fixing with the web of box steel plate for arch beam.
Forwarding Fig. 3 to, knowable to this figure, the cross section of arch beam 2 is I shape, and from one end of arch beam to the other end, the height of web is first gradually reduced, after become larger.I.e. the web of arch beam is at least while being arcuation.In this embodiment, the height of arch beam web is gradually decrease to L2 from L1, is gradually increased to the most again L3, wherein L3=L1 ＞ L2.L1 ≠ L3 can be there is in other embodiments.
Finally describing Fig. 4 and Fig. 5, as can be known from Fig. 4, the junction of box type girder and arch beam is provided with between connecting plate 5, connecting plate and box type girder and arch beam to be fixed by bolt 6.Specifically, connecting plate has two kinds, and one is plane steel plate, and one is L-type angle steel, connects box type girder and the flange plate of arch beam by plane steel plate, by L-type Bolted angle connection box steel plate and the web of arch beam.It is evenly arranged with bolt hole on connecting plate, arch beam and box type girder, connects by frictional high-strength bolts is fixing.
As can be known from Fig. 5, purlin torr is angle steel, is bolted between purlin torr and arch beam and steel purlin bar.In this embodiment, the cross section of steel purlin bar is c-type, and in other embodiments, steel purlin bar can be Z-type channel-section steel or thin-wall channel, by Bolted angle connection arch beam and the web of steel purlin bar.It should be noted that the perspective view that this figure is partial enlargement.Therefore part-structure does not show, overall structure is referred to Fig. 1 or Fig. 2.
In a word, this utility model, by using box type girder, adds stability and the anti-torsion ability of girder.Arch beam then makes the stress of crossbeam the most reasonable, increases structure and undertakes the ability of load, and reduces the amount of deflection of structure.
In the above-described embodiments, the bolt that is connected by between component is fixed, and such benefit is easy for controlling construction quality, being easy to detection and later maintenance.And existing welding manner difficult quality controls, execution conditions are the strictest simultaneously, and the such as requirement to weather is higher, and speed of application slowly, detects the most relatively complicated.
In the above-described embodiments, box type girder 1 model is taken according to design and on-the-spot needs.Beam-ends moment of flexure is passed to box type girder 1 by arch beam 2 so that box type girder is by bigger moment of torsion, and the girder of box-type section has bigger anti-torsion performance relative to other the section form such as such as I-beam, and then improves the stability of girder.Arch beam 2 uses I-steel section form, and web is along beam longitudinal direction And of Varying Depth.Steel purlin bar 3 uses C-type steel, thin-wall channel or Z-shaped purlin.
Purlin torr 4 uses angle steel form.Place connecting plate between box type girder 1 and arch beam 2, and by frictional high-strength bolts, the web of arch beam 2 with box type girder 1 is connected, it is ensured that the Shear force within the beam end of arch beam 2 can effectively pass to box type girder.Arch beam 2 is connected with by purlin torr 4 with steel purlin bar 3, and the every two ends of purlin should set two or more bolt, it is ensured that the out-of-plane stability of plane framework.
Construction of the present utility model mainly divides the following four stage: steel construction factory process production phase, component conveying stage, on-site consolidation stage, and steel construction in-site installation stage.
The prefabrication of shaped steel: box type girder 1 manufacturing process: web, flange plate cutting stock → welding → dividing plate, liner plate cutting stock → dividing plate assembly welding → dividing plate processing → U-shaped assembling → box assembles → welding → flaw detection → rust cleaning application → numbering → packed and transported.It is connected with by connecting plate between component.Add and should avoid man-hour arched girder that broken line occurs, and arched girder deformation in cutting stock and welding process should be controlled.Specifically can refer to " structural steelwork job specfication " GB50755-2012.
Arch beam 2 manufacturing process: setting-out → making model → cutting steel plate → cold-pressing quality steel flange plate → group is to H profile steel → welding → rectification → preassembling (inspection) → rust cleaning application → numbering → packed and transported.Specifically also can refer to " structural steelwork job specfication " GB50755-2012.The processing and fabricating of factory must take effective measures to guarantee the machining accuracy of component, to guarantee required precision when steel construction building site is installed.
Construction and installation process is as follows:
Before lifting, the antidumping that should check crane is stable, and selects rational Hoisting Program.Assuming that when lifting shearing is all undertaken by web at box type girder 1 and arch beam 2, moment of flexure is undertaken by steel flange plate.Owing to the overall dimensions of box type girder 1 is relatively big, therefore every Pin longitudinal direction case box beam is carried out on platform overall sleeping assembled to ensure quality.Box type girder 1 hoisting process is: longitudinal case box girder assembling moulding bed makes → longitudinal case box girder assembling location → laterally girder assembling → interface weld seam welding → UT inspection → postwelding correction → supervising engineer's inspection → application → check qualified.After box type girder 1 is lifted into predetermined installation site, make to be connected with by box type girder 1 and post.Lifting arch beam 2 the most successively, arch beam 2 is connected by connecting plate high intensity shearing bolt with box type girder 1.After arch beam 2 rigging out, lifting steel purlin bar 3, steel purlin bar 3 is spliced with bolt by purlin torr 4 with arch beam 2.
From above-described embodiment it can be seen that advantage of the present utility model includes: the full assembled of structure, component all can be prefabricated in the factory, it is not necessary to field operation, and construction speed is fast, and climate conditionality is little, saves labour force and can improve construction quality.The beam force of arch is the most reasonable, and the girder stability of box-type section and anti-torsion ability are high.Using the connecting method of full bolt between component and component, have higher power transmission reliability and connection integrity, control and the later maintenance of construction quality are the most more convenient.Structure is made to be completely embedded additionally, with bolts, endurance, bear dynamic load reliable.
Arch beam can make awning form the gradient, it is achieved functional in organized water drainage, removes the trouble looking for slope or inorganization draining to bring from.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can be carried out multiple equivalents, these equivalents belong to protection domain of the present utility model.
Claims (7)
1. the complete prefabricated platform awning frame of large span, it is characterized in that, including box type girder, arrange along box type girder length direction interval and be secured to the some arch beams connected, the steel purlin bar be arrangeding in parallel with described box type girder, and for steel purlin bar being fixedly connected on the purlin torr of arch beam.
2. the complete prefabricated platform awning frame of large span as claimed in claim 1, it is characterised in that the cross section of described arch beam is I shape, and from one end of arch beam to the other end, the height of web is first gradually reduced, after become larger.
3. the complete prefabricated platform awning frame of large span as claimed in claim 1, it is characterised in that the junction of described box type girder and arch beam is provided with between connecting plate, connecting plate and box type girder and arch beam and is bolted.
4. the complete prefabricated platform awning frame of large span as claimed in claim 2, it is characterised in that the junction of described box type girder and arch beam is provided with between connecting plate, connecting plate and box type girder and arch beam and is bolted.
5. the complete prefabricated platform awning frame of large span as described in any one of Claims 1-4, it is characterised in that described purlin torr is angle steel, is bolted between purlin torr and arch beam and steel purlin bar.
6. the complete prefabricated platform awning frame of large span as claimed in claim 5, it is characterised in that the cross section of described steel purlin bar is c-type or Z-type.
7. the complete prefabricated platform awning frame of large span as claimed in claim 5, it is characterised in that described steel purlin bar is thin-wall channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137109.6U CN205444990U (en) | 2015-12-31 | 2015-12-31 | Large -span is prefabricated platform canopy frame entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521137109.6U CN205444990U (en) | 2015-12-31 | 2015-12-31 | Large -span is prefabricated platform canopy frame entirely |
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| Publication Number | Publication Date |
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| CN205444990U true CN205444990U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521137109.6U Expired - Fee Related CN205444990U (en) | 2015-12-31 | 2015-12-31 | Large -span is prefabricated platform canopy frame entirely |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760666A (en) * | 2016-12-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of assembled rain-proof awning |
| CN112942703A (en) * | 2021-02-04 | 2021-06-11 | 广东世纪达建设集团有限公司 | Construction method of Zhongting steel structure canopy |
-
2015
- 2015-12-31 CN CN201521137109.6U patent/CN205444990U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106760666A (en) * | 2016-12-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of assembled rain-proof awning |
| CN112942703A (en) * | 2021-02-04 | 2021-06-11 | 广东世纪达建设集团有限公司 | Construction method of Zhongting steel structure canopy |
| CN112942703B (en) * | 2021-02-04 | 2022-04-22 | 广东世纪达建设集团有限公司 | Construction method of Zhongting steel structure canopy |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20211231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |