CN203613462U - Prefabricated bracket system - Google Patents
Prefabricated bracket system Download PDFInfo
- Publication number
- CN203613462U CN203613462U CN201320742960.6U CN201320742960U CN203613462U CN 203613462 U CN203613462 U CN 203613462U CN 201320742960 U CN201320742960 U CN 201320742960U CN 203613462 U CN203613462 U CN 203613462U
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- China
- Prior art keywords
- rod
- upper flat
- prefabricated
- front inclined
- construction
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- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000003754 machining Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 5
- 238000009417 prefabrication Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of bridge bracket construction equipment and particularly relates to a prefabricated bracket system. The problems that according to a high bridge pier continuous rigid frame, a pier body is high, the number zero section is high in construction difficulty, and safety risks are high are solved. The prefabricated bracket system comprises an upper flat rod, a front inclined rod and a supporting rod, wherein the upper flat rod, the front inclined rod and the supporting rod are formed by encircled steel channels in a prefabricated machining mode. One end of the upper flat rod is connected with one end of the inclined supporting rod, and the other end of the upper flat rod is connected with one end of the front inclined rod. The other end of the inclined supporting rod is connected with the middle of the front inclined rod, and the other end of the front inclined rod and the end of one side, corresponding to the end of the front inclined rod, of the upper flat rod are connected with a lower twisting base and an upper twisting base respectively through finish rolled twisted steel, and the upper twisting base and the lower twisting base are connected with the pier body through finish rolled nuts. The prefabricated bracket system has the advantages that the quality of welded joints is guaranteed, and safety ricks of construction are reduced; the problems that at the high bridge pier continuous rigid frame, the pier body is high, the number zero section is high in construction difficulty, and the safety risks are high are solved; manufacturing material is simple and easy to find out, manufacturing is convenient, and operation is safe and easy to perform.
Description
Technical field
The utility model belongs to the technical field of bridge supporting frame construction equipment, is specifically related to a kind of prefabricated rack system.
Background technology
The history of building high pier large span continuous rigid frame bridge is abroad relatively earlier domestic, nineteen eighty-two, the Houston canal bridge of the U.S. is across being 114+228.6+114m, and main span is two chambers box-type sections, Rigid Pier, this is that span is large, a time high pier continuous rigid frame bridge early.The Australian gateway bridge building up in 1985, is 145+260+145m across footpath, adopts two thin-wall piers, and single box single chamber girder is C50 high-strength concrete, and this bridge held the world's record for 12 years, was a landmark building.The high pier continuous rigid frame bridge of China is to start to build in 1988, and built up in nineteen ninety the Guangzhou Luoxi Bridge that China's First is 180m across footpath.Enter the nineties, China has built several the large continuous rigid frame bridges across footpath in succession, as the Huangshi Yangtze Bridge (162.5+3 × 245+163.5) m that nineteen ninety-five builds up, and Humen Bridge Auxiliary Channel bridge (150+270+150) m building up for 1997.In recent years, along with the enforcement of strategy to develop western regions, it is more and more that high-grade highway occurred in gully area, western zanjon danger.Bridge pier height is more and more higher.Be at present Longtan River Bridge at the high pier of the continuous rigid frame bridge of building, maximum pier height has reached 179m.Pier shaft height is more and more higher, increases gradually for the difficulty of No. 0 section construction.In order to reduce the difficulty of construction, we create prefabricated bracket construction technology at development.
Summary of the invention
The utility model is in order to solve at high pier continuous rigid frame, and the problem such as pier shaft is high, No. 0 section difficulty of construction is large, security risk is large, provides a kind of prefabricated rack system.
The utility model adopts following technical scheme to realize:
A kind of prefabricated rack system, comprise with filling the span of a man's arms the prefabricated upper flat bar processing of channel-section steel, front brace and support bar, upper flat bar one end is connected with one end of bearing diagonal, the upper flat bar other end is connected with one end of front brace, the other end of bearing diagonal is connected with the middle part of front brace, the other end of front brace and being connected with lower twisted seat, upper twisted seat respectively by finish rolling deformed bar with the upper flat boom end of the corresponding side of this end of front brace, upper and lower twisted seat is connected with pier shaft by fine-rolling screw nut.
1), prefabrication bracket the beneficial effects of the utility model:, can guarantee the quality of weld seam.2), prefabrication bracket, can reduce construction safety risk; Thereby solve at high pier continuous rigid frame the problem such as pier shaft is high, No. 0 section difficulty of construction is large, security risk is large; Prefabricated carrier machine making material is simple and easy to look in addition, and easy to make, handling safety is simple.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation,
Fig. 2 is upper and lower twisted seat structural representation,
Fig. 3 is the lateral view of Fig. 2,
In figure: the upper flat bar of 1-, brace before 2-, 3-bearing diagonal, the upper twisted seat of 4-, twisted seat under 5-, 6-fining twisted steel, joist before 7-, joist after 8-, 9-distribution beam.
The specific embodiment
By reference to the accompanying drawings the specific embodiment of the present utility model is described further.
As shown in Figure 1, prefabricated rack system, comprise with filling the span of a man's arms prefabricated upper flat bar 1, front brace 2 and the support bar 3 processing of channel-section steel, upper flat bar 1 one end is connected with one end of bearing diagonal 3, upper flat bar 1 other end is connected with one end of front brace 2, the other end of bearing diagonal 3 is connected with the middle part of front brace 2, the other end of front brace 2 and being connected with lower twisted seat 5, upper twisted seat 4 respectively by finish rolling deformed bar 6 with the upper flat boom end of the corresponding side of this end of front brace, twisted seat is connected with pier shaft by fine-rolling screw nut up and down.
No. 0 section difficulty of construction of high pier is larger, and security risk is very large, adopts the construction method of conventional full framing, cannot meet construction and safety requirements at all.Adopt by the embodiment of utility model, concrete steps are as follows:
1, prefabrication part,
1), upper flat bar 1 makes, and adopts that [channel-section steel of 28b, the length of every channel-section steel is defined as 4m according to the jib-length of No. 0 section.After material preparation, by two channel-section steels with length, adopt the mode of full seam welding to fill the span of a man's arms.The position being connected with upper twisted seat, the steel plate of employing 2cm is made into semicircle and is welded in the channel-section steel one end of filling the span of a man's arms, and carries out the connecting hole of φ 32.
2), front brace 2 makes, and adopts that [channel-section steel of 28b, the length of every channel-section steel is defined as 4.75m according to the jib-length of No. 0 section.After material preparation, by two channel-section steels with length, the mode of the full seam welding of employing is filled the span of a man's arms, and with lower twisted seat connecting portion, adopts the steel plate of 2cm to be made into one end of semicircle welding and front brace 2.After completing, its other end is welded on the design attitude of upper flat bar 1, weld seam is full.
3), support bar 3 makes, and adopts that [channel-section steel of 28b, the length of every channel-section steel is defined as 2.22m according to the jib-length of No. 0 section.After material preparation, by two channel-section steels with length, adopt the mode of full seam welding to fill the span of a man's arms.After completing, its one end is welded in to upper flat bar, the other end is welded on front brace, and weld seam is full.
4) upper twisted seat 4 and lower twisted seat 5 are made, and adopt the steel plate of 30cm × 40cm × 2cm, and the ears of an ox or cow vertical welding, on steel plate, and is made to seven connecting holes at steel plate and the ears of an ox or cow relevant position.Upper twisted seat 4 and lower twisted seat 5 are as shown in Figure 2,3.
2, the pre-buried part of pier shaft
In the time that pier construction arrives certain altitude, at the pre-buried finish rolling deformed bar 6 in design relevant position.
3, connect upper and lower twisted seat
When pier shaft concrete reaches after some strength, by fine-rolling screw nut, upper and lower twisted seat and the pre-buried finish rolling deformed bar 6 of pier shaft are linked together, must guarantee that upper and lower twisted seat and pier shaft concrete surface are closely connected.When not closely connected, adopt the steel plate of respective thickness to level up.
4, hoisting prefabricated bracket
Adopt the mode of tower crane lifting by bracket good prefabrication and upper and lower twisted seat, link together by high-strength bolt.
5, check the intensity of prefabricated bracket
After prefabricated bracket lifting finishes, joist 7, rear joist 8 before place the relevant position of bracket, and lay i iron 9 on joist top, front and back as distribution beam.Adopt the construction method of static loading prepressing bracket, the intensity of bracket is tested, come into operation after qualified.
Claims (1)
1. a prefabricated rack system, it is characterized in that it comprises with filling the span of a man's arms the prefabricated upper flat bar (1) processing of channel-section steel, front brace (2) and support bar (3), upper flat bar (1) one end is connected with one end of bearing diagonal (3), upper flat bar (1) other end is connected with one end of front brace (2), the other end of bearing diagonal (3) is connected with the middle part of front brace (2), the other end of front brace (2) and with the upper flat boom end of the corresponding side of this end of front brace by finish rolling deformed bar (6) respectively with lower twisted seat (5), upper twisted seat (4) is connected, upper and lower twisted seat is connected with pier shaft by fine-rolling screw nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742960.6U CN203613462U (en) | 2013-11-22 | 2013-11-22 | Prefabricated bracket system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742960.6U CN203613462U (en) | 2013-11-22 | 2013-11-22 | Prefabricated bracket system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613462U true CN203613462U (en) | 2014-05-28 |
Family
ID=50766118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320742960.6U Expired - Lifetime CN203613462U (en) | 2013-11-22 | 2013-11-22 | Prefabricated bracket system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203613462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480866A (en) * | 2014-11-17 | 2015-04-01 | 中铁十四局集团有限公司 | 0# block bottom plate bracket of suspended poured box girder |
| CN105839539A (en) * | 2016-04-29 | 2016-08-10 | 贵州桥梁建设集团有限责任公司 | Rigid frame bridge zero section support and construction method thereof |
-
2013
- 2013-11-22 CN CN201320742960.6U patent/CN203613462U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104480866A (en) * | 2014-11-17 | 2015-04-01 | 中铁十四局集团有限公司 | 0# block bottom plate bracket of suspended poured box girder |
| CN105839539A (en) * | 2016-04-29 | 2016-08-10 | 贵州桥梁建设集团有限责任公司 | Rigid frame bridge zero section support and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |
|
| CX01 | Expiry of patent term |