CN201720937U - Steel upright cross beam-free steel-mixed beam pedestal - Google Patents
Steel upright cross beam-free steel-mixed beam pedestal Download PDFInfo
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- CN201720937U CN201720937U CN2010202498004U CN201020249800U CN201720937U CN 201720937 U CN201720937 U CN 201720937U CN 2010202498004 U CN2010202498004 U CN 2010202498004U CN 201020249800 U CN201020249800 U CN 201020249800U CN 201720937 U CN201720937 U CN 201720937U
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- pedestal
- longeron
- concrete
- concrete foundation
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Abstract
The utility model discloses a steel upright cross beam-free steel-mixed beam pedestal adopting a concrete foundation. The steel upright cross beam-free steel-mixed beam pedestal is characterized in that three steel-structure longitudinal beams are arranged on a middle pedestal of the concrete foundation along the length direction of a prefabricated tank beam in parallel; a fixing structure for setting the steel-structure longitudinal beams on the middle pedestal of the concrete foundation is characterized in that a steel plate-embedded assembly is arranged in the middle pedestal, steel tube uprights are connected to the steel plate-embedded assembly by bolts, and the steel-structure longitudinal beams are fixedly supported on the steel tube uprights by bolt connection. By adopting a steel-mixed structure, the steel upright cross beam-free steel-mixed beam pedestal reduces the usage amount of templates and greatly simplifies fabricating programs in a spliced structure form, thereby having rapid and convenient construction and shortening the construction period; and as the steel-structure longitudinal beams can be repeatedly used, the waste is avoided.
Description
Technical field
The utility model relates to a kind of beam making bench, more specifically say so a kind ofly be applied in the railroad bridge engineering, for finishing the indispensable tooling device of prefabricated case beam, for prefabricated case beam provides the place.
Background technology
In China, classification of rail has increased " Line for Passenger Transportation " grade again except that I, II, III level at present, and speed per hour 200 is to 350km/h, is referred to as Line for Passenger Transportation based on the speed rail of passenger traffic.Line for Passenger Transportation is support with high speed and rapid technology, and train running speed has been realized historical leap.The Line for Passenger Transportation freight volume is big, usefulness is high, and economic results in society are remarkable.
I, II, III level railway, especially Line for Passenger Transportation circuit major part is made up of bridge, the case beam is the main part of bridge, the case beam is divided into cast-in-situ box girder and prefabricated case beam, wherein the production of prefabricated case beam need be carried out centralized production by special beam making field, and beam making bench is the indispensable tooling device of beam making field.
At present, being applied in the beam making bench of railway box in beam prefabricated is the whole concrete structure, is made up of basis, end, end longeron, basis, middle part and waist longeron.In the construction, at first carry out foundation excavation and processing, tie up basis, end and middle part reinforcement foundation again, and the pre-buried muscle of longeron, formwork erection construction end and basis, middle part are tied up longeron poker muscle and pre-buried steel member again, and formwork erection carries out the longeron concrete construction again.There is following problem in this version in practice of construction:
1, at this whole concrete structure, work progress comprises: formwork erection, concrete construction, concrete curing, form removal etc., manufacturing process take a lot of work, time-consuming, and the cycle is long, and colligation welding quantity is big.
2, the whole concrete structure not only can not reuse, and the later stage reclaims in place time dismounting man-hour is big, expense is high.
3, to adopt a large amount of templates in the construction, reinforcing bar and concrete, the cost height, the consumption of mould material is big, and armored concrete expends many.
4, adopt the concrete longeron, when steam curing case beam underplate concrete, steam only can carry out cold and hot exchange from the pedestal end in the concrete longeron spatial dimension, and the steam between each bar concrete longeron can not exchange, so just make in the concrete longeron space and all there are temperature contrast in outside steam and the steam between each concrete longeron space, to compare the surplus position of case Liangqi not prompt enough in the health of case beam underplate concrete thus, and base plate strength rises slack-off thereupon.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, provide a kind of steel column not have crossbeam steel reinforced concrete beam making bench, giving up with simplification work progress, the raw-material consumption of minimizing.
The utility model technical solution problem adopts following technical scheme:
The utility model steel column does not have crossbeam steel reinforced concrete beam making bench, adopts concrete foundation, its design feature to be, at the length direction of pedestal upper edge, the middle part of described concrete foundation prefabricated case beam the steel construction longeron is set; Described steel construction longeron is three roads that be arranged in parallel; Described steel construction longeron is set at the fixed structure on the pedestal of the middle part of concrete foundation is: in the pedestal of described middle part the pre-embedded steel slab sub-assembly is set, bolt connects steel pipe post on described pre-embedded steel slab sub-assembly, and described steel construction longeron is connected and fixed with bolt and is supported on the described steel pipe post.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model adopts steel and concrete structure, has significantly reduced the use amount of template, and the version of its assembly unit has been simplified production process greatly, and quick construction is convenient, effectively the reduction of erection time; Its steel construction longeron can be reused, and has avoided waste; The type of attachment easy accessibility of its bolt.
2, the utility model can be eliminated the construction error of pedestal well by adjusting steel pipe post.
3, the spacing that the utility model can be by changing steel pipe post and the width of end template are effectively realized general between case beam that bottom width differs greatly, as single line case beam and double line box girder.
4, the utility model replaces the concrete longeron with the steel construction longeron, can effectively arrange jet chimney in the steel construction longeron, makes the beam physical efficiency reach good maintenance effect rapidly easily.
5, the utility model is supported on the steel construction longeron on each column that is provided with at interval, when steam curing, under the steel construction longeron between each column steam can enter jointly from pedestal sidepiece and end and accelerate the cold and hot exchange of steam, and can there be the temperature difference in steam yet between each steel construction longeron, can make the health of case beam underplate concrete identical like this, accelerate the rising of case beam concrete strength with all the other positions.
6, the utility model steel and concrete structure of finishing assembling can satisfy logical bridge (2008) the 2221A series of 250 kilometers post-stressed simple beams of passenger dedicated railway line of speed per hour, logical bridge (2008) 2224A series, logical bridge (2009) 2229 series; And tens kinds of beam types of series such as logical bridge (2006) 2322 series of 350 kilometers post-stressed simple beams of passenger dedicated railway line of speed per hour, logical bridge (2008) 2322A series.
Description of drawings
Fig. 1 is the utility model vertical structure schematic diagram;
Fig. 2 is the utility model cross-sectional configuration schematic diagram;
Fig. 3 is the utility model planar structure schematic diagram.
Number in the figure: 1 middle part pedestal, 2 steel construction longerons, 3 bed dies, 4 pre-embedded steel slab sub-assemblies, 5 steel pipe posts, 6 end longerons.
The specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, present embodiment is that the length direction at the middle part of concrete foundation pedestal 1 upper edge prefabricated case beam is provided with steel construction longeron 2; Three roads of steel construction longeron 2 for be arrangeding in parallel; The fixed structure of steel construction longeron 2 on the middle part of concrete foundation pedestal 1 is set is: the pre-embedded steel slab sub-assembly is set in middle part pedestal 1, bolt connects steel pipe post 5 on pre-embedded steel slab sub-assembly 4, and steel construction longeron 2 is connected and fixed with bolt and is supported on the steel pipe post 5.
In the present embodiment, steel pipe post 5 has eight covers under steel construction longeron 2, and along evenly being provided with on the length direction of prefabricated case beam, steel pipe post 5 is φ 351mm * 10mm by structure shown in Figure 1.
Shown in Figure 1, end longeron 6 in this enforcement is the concrete longeron, and bed die 3 is logical bridge (2008) 2221A-VII case beam bottom boards, after in case joist steel template workshop the case beam bottom board being processed in concrete the enforcement, haul the job site, directly on steel construction longeron 2, install.
Work progress:
1, finishes the construction on the basis, middle part 1 of concrete foundation in the beam making bench at first in the usual way, and pre-embedded steel slab sub-assembly 4 is set in basis, middle part 1, pre-embedded steel slab sub-assembly 4 is t12mm * 500mm * 500mm steel plate, when construction, wrapped up the bolt silk mouth of steel plate sub-assembly 4, and the flatness of the steel plate on the requirement assurance pre-embedded steel slab sub-assembly 4, four jiaos of discrepancy in elevation must not be greater than 2mm.
2, steel pipe post 5 is connected on the steel plate sub-assembly 4 by the bolt installation, to guarantee the perpendicularity of steel pipe post 5 during connection, by adding apical side height that the 500mm that mat thickness do not wait * 500mm steel plate adjusts steel pipe post 5 at grade, to eliminate the height error of installing before the steel construction longeron 4.
3, on the end plate of steel pipe post 5, with the bolted steel structure longeron 2 of M32mm.
4, bed die 3 and supporting screw jack are installed on the steel construction longeron, the steel reinforced concrete beam making bench is moulding.
In the present embodiment, between each adjacent road steel construction longeron 2 the steel construction crossbeam is set no longer.This form at the less case beam of specification under the prerequisite of proof strength and soundness one step simplified structure more the time, simplify and make, reduce cost.
Claims (1)
1. a steel column does not have crossbeam steel reinforced concrete beam making bench, adopts concrete foundation, it is characterized in that, at the length direction of the middle part of described concrete foundation pedestal (1) upper edge prefabricated case beam steel construction longeron (2) is set; Three roads of described steel construction longeron (2) for be arrangeding in parallel; Described steel construction longeron (2) is set at the fixed structure on the middle part of the concrete foundation pedestal (1) is: pre-embedded steel slab sub-assembly (4) is set in described middle part pedestal (1), go up bolt at described pre-embedded steel slab sub-assembly (4) and connect steel pipe post (5), described steel construction longeron (2) is connected and fixed with bolt and is supported on the described steel pipe post (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202498004U CN201720937U (en) | 2010-07-07 | 2010-07-07 | Steel upright cross beam-free steel-mixed beam pedestal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202498004U CN201720937U (en) | 2010-07-07 | 2010-07-07 | Steel upright cross beam-free steel-mixed beam pedestal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201720937U true CN201720937U (en) | 2011-01-26 |
Family
ID=43489225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202498004U Expired - Fee Related CN201720937U (en) | 2010-07-07 | 2010-07-07 | Steel upright cross beam-free steel-mixed beam pedestal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201720937U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395119A (en) * | 2013-07-29 | 2013-11-20 | 中铁四局集团第三建设有限公司 | Combined moving pedestal for road hollow-slab beams |
-
2010
- 2010-07-07 CN CN2010202498004U patent/CN201720937U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395119A (en) * | 2013-07-29 | 2013-11-20 | 中铁四局集团第三建设有限公司 | Combined moving pedestal for road hollow-slab beams |
| CN103395119B (en) * | 2013-07-29 | 2015-10-07 | 中铁四局集团第三建设有限公司 | A kind of highway hollow slab girder combined movable pedestal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110126 Termination date: 20170707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |