CN203559359U - Steel girder for reinforcing rigid frame arch bridge beam - Google Patents
Steel girder for reinforcing rigid frame arch bridge beam Download PDFInfo
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- CN203559359U CN203559359U CN201320704136.1U CN201320704136U CN203559359U CN 203559359 U CN203559359 U CN 203559359U CN 201320704136 U CN201320704136 U CN 201320704136U CN 203559359 U CN203559359 U CN 203559359U
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- cross bar
- arch bridge
- steel girder
- plate
- rigid frame
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Abstract
The utility model discloses a steel girder for reinforcing a rigid frame arch bridge beam, and aims to provide a steel girder for reinforcing a ferroconcrete rigid frame arch bridge beam, and the steel girder is small in construction damage, simple in construction technology and good in economic efficiency. The steel girder comprises cross bars, wherein end plates are arranged at two ends of each cross bar; lightening holes are formed in the cross bars; bolts I for connecting bridge arch ribs are arranged on the end plates; connecting plates connected with the bridge beam are further arranged at the upper end parts of gusset plates; bolts II are arranged on the connecting plates; the cross bars and the end plates are connected through the gusset plates; and batten plates are arranged below the cross bars. The steel girder is particularly suitable for reinforcing the rigid frame arch bridge beam.
Description
Technical field
The utility model relates to a kind of bridge strengthening field, specifically, relates to a kind of rigid framed arch bridge straining beam and reinforces the girder steel of use.
Background technology
Reinforced concrete rigid frame arch bridge is since application in 1979, particularly nineteen eighty-three, after Ministry of Communications publishes < < reinforced concrete rigid frame arch modular in design figure > >, in the whole nation, extensively build, this bridge construction breaks the whole up into parts, collects zero for whole, advantage is that structural separation is light and handy, but it is poor that shortcoming is structural integrity, as there are diagonal crack in various degree, Vertical Cracks etc. in the transverse strut of rigid framed arch bridge, a little less than lateral ties relative thin, cause bridge lateral and integral rigidity deficiency.Now generally there is disease in various degree in the reinforced concrete rigid frame arch bridge that these particular historical are built period, serious threat traffic safety, and strengthening reconstruction is extremely urgent.
And the following shortcoming that the conventional reinforcement means of tradition exists for rigid framed arch bridge: 1. it is more that Enlargement of Section increases dead load, and be inconvenient to construct, and joint is difficult to fix; 2. joint encased steel plate method, too large to arch rib damage, and bridge itself is not had to reinforcement effect.Therefore the reinforcing of the inapplicable reinforced concrete rigid frame arch bridge of traditional technology crossbeam, is necessary to research and develop a kind of new ruggedized construction.
At present, we retrieve the open source literature that some bridge crossbeams are reinforced, for example:
1. Chinese master thesis < < rigid framed Arch Bridge Reinforcement method research > >, open day on June 26th, 2011, this paper discloses a kind of ruggedized construction of bridge straining beam, it has proposed a kind of new additional reinforcement method of steel shapes and has reinforced rigid framed arch bridge straining beam, by shaped steel connecting bridge arch rib, strengthen the bearing capacity of bridge.Its weak point is: weight is heavier, is not easy to carrying and installs, and construction technology is poor.
2. the research of the paper < < rigid framed arch bridge straining beam reinforcing technique in magazine < < bridge construction > > > >, open day is on December 28th, 2012, this paper discloses bridge straining beam Scheme of Strengthening, it arranges section steel beam in the bottom of former straining beam, beam-ends adopts M24 high-strength bolt to be connected with arch rib, and section steel beam end connects employing M20 chemical bolt and implants in former straining beam.Its weak point is: angle steel rigidity is little, and supporting effect is poor, and construction technology is poor.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model is to provide that a kind of breakage in installation is little, construction technology is simple, the girder steel of the reinforced steel concrete rigid framed arch bridge straining beam of good economy performance.
For achieving the above object, the present invention is achieved by the following scheme:
A kind of rigid framed arch bridge crossbeam reinforcing girder steel, comprises cross bar, and described cross bar is connected by gusset plate with end plate, and described cross bar is provided with lightening hole, and described end plate is provided with the bolt I of connecting bridge arch rib.
Be improved further: described gusset plate upper end is also provided with the junction plate being connected with bridge crossbeam, and junction plate is provided with bolt II.
Be improved further: the quantity of described cross bar is greater than at 1 o'clock, cross bar below is provided with batten plate.
Be improved further: described cross bar is rectangle steel or channel-section steel.
Be improved further: the quantity of described cross bar is 1～3.
Operating principle of the present utility model: first rule and determine installation site by scene, welded end plate and gusset plate, then by bolt I fixed charge method end plate, after having fixed, on gusset plate, weld cross bar, above gusset plate, be welded to connect plate, then junction plate and the crossbeam of original bridge are coupled together with bolt II, finally at steel-mixed contact surface reperfusion structure glue, utilize cross bar to strengthen the horizontal connection of each arch rib, completed strengthening construction, reached and extended the rigid arch bridge target in application life.
Compared with prior art, the utlity model has following beneficial effect:
1. breakage in installation is little.It is little to the damage of bridge that the utility model is compared other traditional reinforcement means, and especially, when the straining beam of bridge seriously ftractures, traditional construction method can increase the weight of damage or increase new load, weakened the effect of repairing.
2. construction technology is simple.The utility model is simple to operate, does not need large area bar planting, is first bolted end plate and gusset plate during construction, then welds in turn cross bar, batten plate, junction plate, just can realize the reinforcing of straining beam, constructs simple and convenient.
3. good economy performance.The utility model can, not affecting or affecting under the situation being open to traffic and construct less, not affect normal traffic yet, good in economic efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model rigid framed arch bridge crossbeam reinforcing steel beam structure schematic diagram.
Component title and sequence number in figure:
Cross bar 1, batten plate 2, end plate 3, bolt I4, junction plate 5, gusset plate 6, bolt II7, lightening hole 8.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, the utility model comprises cross bar 1, and cross bar 1 is connected by gusset plate 6 with end plate 3, and cross bar 1 is rectangle steel, and quantity is 1, and cross bar 1 is provided with lightening hole 8, and end plate 3 is provided with the bolt I4 of connecting bridge arch rib.
In the present embodiment, first by scene, rule and determined installation site, welded end plate 3 and gusset plate 6, then, by bolt I4 fixed charge method end plate 3, be welded to connect the two ends of cross bar 1 and gusset plate 6 after having fixed again, completed strengthening construction.
Embodiment 2:
Be with the difference of embodiment 1: gusset plate 6 upper ends are also provided with the junction plate 5 being connected with bridge crossbeam, and junction plate 5 is provided with bolt II7.
In the present embodiment, at gusset plate, 6 upper end sides are welded to connect plate 5, then junction plate 5 and the crossbeam of original bridge are coupled together with bolt II7, strengthen the bonding strength of arch rib and crossbeam.
Embodiment 3:
Be with the difference of embodiment 2: the quantity of cross bar 1 is greater than at 1 o'clock, cross bar 1 below is provided with batten plate 2.
In the present embodiment, the rigidity of total is better, and globality is better, and bearing capacity is larger.
Embodiment 4:
Be with the difference of embodiment 3: cross bar 1 is channel-section steel.
Embodiment 5:
Be with the difference of above-mentioned arbitrary embodiment: cross bar 1 quantity is 2.
In the present embodiment, the globality of total is better, and bearing capacity is larger.
Embodiment 6:
Be with the difference of embodiment 5: cross bar 1 quantity is 3.
In the present embodiment, the globality of total is better, and bearing capacity is larger.
Claims (5)
1. a rigid framed arch bridge crossbeam reinforcing girder steel, comprise cross bar (1), it is characterized in that: described cross bar (1) is connected by gusset plate (6) with end plate (3), and described cross bar (1) is provided with lightening hole (8), and described end plate (3) is provided with the bolt I(4 of connecting bridge arch rib).
2. rigid framed arch bridge crossbeam reinforcing girder steel according to claim 1, is characterized in that: described gusset plate (6) upper end is also provided with the junction plate (5) being connected with bridge crossbeam, and described junction plate (5) is provided with bolt II(7).
3. rigid framed arch bridge crossbeam reinforcing girder steel according to claim 1 and 2, is characterized in that: the quantity of described cross bar (1) is greater than at 1 o'clock, and cross bar (1) below is provided with batten plate (2).
4. rigid framed arch bridge crossbeam reinforcing girder steel according to claim 3, is characterized in that: described cross bar (1) is rectangle steel or channel-section steel.
5. rigid framed arch bridge crossbeam reinforcing girder steel according to claim 4, is characterized in that: the quantity of described cross bar (1) is 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704136.1U CN203559359U (en) | 2013-07-23 | 2013-11-08 | Steel girder for reinforcing rigid frame arch bridge beam |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320440203.3 | 2013-07-23 | ||
| CN201320440203 | 2013-07-23 | ||
| CN201320704136.1U CN203559359U (en) | 2013-07-23 | 2013-11-08 | Steel girder for reinforcing rigid frame arch bridge beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559359U true CN203559359U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704136.1U Expired - Fee Related CN203559359U (en) | 2013-07-23 | 2013-11-08 | Steel girder for reinforcing rigid frame arch bridge beam |
Country Status (1)
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| CN (1) | CN203559359U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452604A (en) * | 2014-12-03 | 2015-03-25 | 中铁大桥局武汉桥梁特种技术有限公司 | Method for reinforcing arch rib segment in arch bridge of steel structure |
| CN105908582A (en) * | 2016-03-02 | 2016-08-31 | 四川中德空铁科技有限公司 | Improved structure of foundation pile beam for air railway trains |
| CN109930745A (en) * | 2019-04-24 | 2019-06-25 | 中国建筑设计研究院有限公司 | A kind of thin-walled box beam with ribbing and the building comprising the box-girder |
-
2013
- 2013-11-08 CN CN201320704136.1U patent/CN203559359U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452604A (en) * | 2014-12-03 | 2015-03-25 | 中铁大桥局武汉桥梁特种技术有限公司 | Method for reinforcing arch rib segment in arch bridge of steel structure |
| CN105908582A (en) * | 2016-03-02 | 2016-08-31 | 四川中德空铁科技有限公司 | Improved structure of foundation pile beam for air railway trains |
| CN109930745A (en) * | 2019-04-24 | 2019-06-25 | 中国建筑设计研究院有限公司 | A kind of thin-walled box beam with ribbing and the building comprising the box-girder |
| CN109930745B (en) * | 2019-04-24 | 2024-04-12 | 中国建筑设计研究院有限公司 | Ribbed thin-wall box girder and building comprising same |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20211108 |