CN208088095U - Beams of concrete midspan closing structure - Google Patents
Beams of concrete midspan closing structure Download PDFInfo
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- CN208088095U CN208088095U CN201820275011.4U CN201820275011U CN208088095U CN 208088095 U CN208088095 U CN 208088095U CN 201820275011 U CN201820275011 U CN 201820275011U CN 208088095 U CN208088095 U CN 208088095U
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Abstract
The utility model discloses a kind of beams of concrete midspan closing structures comprising：First embedded section, the second embedded section and the lifting segment between first embedded section and the second embedded section, and the lifting segment is entered by way of lifting in the region between first embedded section and the second embedded section.Its simple structure convenient for construction, and can effectively reduce the influence to traffic of opening the navigation or air flight under bridge and security risk.
Description
Technical field
The utility model is related to science of bridge building field more particularly to a kind of beams of concrete midspan closing structures.
Background technology
Existing concrete continuous bridge girder construction multispan get over the barriers such as river, road setting, for do not influence river under bridge,
Road navigation traffic, the mode for mostly using cantilever pouring are constructed, i.e., Hanging Basket are arranged at the fulcrum of both sides, successively paragraph by paragraph to branch
The symmetrical movable hanging basket in point both sides pours beam body, to further increase the safety for traffic of opening the navigation or air flight under bridge, also goes to river sometimes using along bridge
Stream or road pour beam body, then turn mode in place and construct.
No matter which kind of mode, finally all there is Middle span closing this construction procedure, mostly use at present and Hanging Basket is moved to conjunction
Imperial section, then in pouring across concrete to complete midspan closing, then Hanging Basket is stepped back to the mode of dismounting and carries out Middle span closing.But due to
Cradle structure is complicated, and part is numerous, needs movable hanging basket equipment twice in addition, thus still can cause one to the navigation traffic under bridge
Fixing is rung and security risk.And when bridge structure width is larger, corresponding Hanging Basket equipment is also more complicated, simultaneously as
Cradle structure is integrally fixed on the completed bridge subsection of closure section both sides, and the safety to the bridge subsection of both sides is also
A kind of test.
Utility model content
The utility model is directed to the drawbacks described above of the prior art, provides a kind of beams of concrete midspan closing structure, constructs
Simply, it is convenient for construction, and can effectively reduces the influence to traffic of opening the navigation or air flight under bridge and security risk.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of beams of concrete midspan closing structure is provided comprising：First embedded section, the second embedded section and positioned at described
Lifting segment between first embedded section and the second embedded section, and the lifting segment enters described first by way of lifting
In region between embedded section and the second embedded section.
Preferably, the side of first embedded section towards second embedded section is extended with the first protruding portion；Described
The side of two embedded sections towards first embedded section is extended with the second protruding portion；First protruding portion and the second protruding portion
It is oppositely arranged, and is provided commonly for carrying the lifting segment.
Preferably, the width of first protruding portion and/or the second protruding portion is 30-60cm.
Preferably, in the direction of the width, the lifting segment side is equipped with the first securing plate；And/or the lifting segment is another
Side is equipped with the second securing plate.
Preferably, several first ribbed stiffeners are provided in first embedded section；And/or it is set in second embedded section
It is equipped with several second ribbed stiffeners；And/or several third ribbed stiffeners are provided in the lifting segment.
Preferably, several first WELDING STUDSs are provided in first embedded section；And/or it is set in second embedded section
It is equipped with several second WELDING STUDSs；And/or several third WELDING STUDSs are provided in the lifting segment.
Preferably, first embedded section is embedded in the first concrete structure；And/or second embedded section is pre-buried
In the second concrete structure.
Preferably, the lifting segment is divided into several subelements in the direction of the width.
The advantageous effect of technical solutions of the utility model is：
Concrete-bridge midspan closing structure in the utility model can from using the large scale equipments such as Hanging Basket in construction,
And reduce lifting weight by way of lateral piecemeal, and convenient for construction, and after lifting segment closing, the construction of entire follow-up closure section
It is all located in enclosed construction, substantially traffic etc. of opening the navigation or air flight under bridge is not had an impact, thus can be eliminated safe hidden trouble, is had wide
Application space.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the elevation of beams of concrete midspan closing structure in the embodiments of the present invention one；
Fig. 2 is the cross-section diagram of beams of concrete midspan closing structure in the embodiments of the present invention one；
Fig. 3 is the vertical view of beams of concrete midspan closing structure in the embodiments of the present invention one；
Fig. 4 is the scheme of installation of lifting segment in the embodiments of the present invention one.
Specific implementation mode
In order to make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with attached drawing and reality
Example is applied, the present invention will be further described in detail.It should be understood that tool described herein
Body embodiment is only used for explaining the utility model, is not used to limit the utility model.
Embodiment one：
Fig. 1-3 shows the beams of concrete midspan closing structure of the utility model comprising：First embedded section 1, second is pre-
Section 1 ' and the lifting segment 2 between first embedded section, 1 and second embedded section 1 ' are buried, and the lifting segment 2 passes through
The mode of lifting enters in the region between first embedded section, 1 and second embedded section 1 ', to form the concrete
Beam midspan closing structure.In the present embodiment, first embedded section 1 can be embedded in advance in the first girder beam body 10；And/or
Second embedded section 1 ' can be embedded in advance in the second girder beam body 10 ', and first embedded section 1, the second embedded section 1 '
And one or several in lifting segment 2 uses resistant material, such as weathering steel to be made, and the steel construction later stage is thus avoided to need frequency
The problem of numerous progress application maintenance；In addition, due to bridge lateral wider width, for ease of practice of construction and mitigate lifting weight
Amount, the lifting segment 2 are divided into several subelements in the direction of the width, when lifting, can by subelement along Fig. 4 arrow institute
Finger direction is lifted between first embedded section, 1 and second embedded section 1 ', is then carried out again to several described subelements
Welding.
Further, the first girder beam body 10 is on the first inside 110 of the second girder beam body 10 ', court
Extend the first protruding portion 111 to second embedded section 1 '；The second girder beam body 10 ' is close to the first girder beam body
Extend the second protruding portion 111 ' on 10 the second inside 110 ', towards first embedded section 1；And first protruding portion
111 and second protruding portion 111 ' be laid flat platform as taking, the two is oppositely arranged, and is provided commonly for carrying the entirety of the lifting segment 2
Weight, it is preferred that the width d of first protruding portion, 111 and/or second protruding portion 111 ' is 30-60cm (preferably 50cm)；
After the lifting segment 2 is between first embedded section 1 and second embedded section 1 ', with the first protruding portion 111 and
Two protruding portions 111 ' form the agent structure of closure section together.
Further, the rigidity to reinforce steel plate structure and the bond strength between concrete, first embedded section 1
Inside it is provided with several first ribbed stiffeners 11；And/or it is provided with several second ribbed stiffeners 11 ' in second embedded section 1 '；With/
Or, being provided with several third ribbed stiffeners 21 in the lifting segment 2；Preferably, first ribbed stiffener, 11 and/or second ribbed stiffener
11 ' and/or third ribbed stiffener 21 extend on width direction W, and in the length directionl uniform intervals be arranged；
Meanwhile in first embedded section 1, be provided with several first WELDING STUDSs 12；And/or second embedded section 1 '
Inside it is provided with several second WELDING STUDSs 12；And/or it is provided with several third WELDING STUDSs 22 in the lifting segment 2；Further
, first internal layer, 110 width direction W is equipped with the first securing plate 23 being connect with 21 side of third ribbed stiffener；With/
Or, second internal layer, 110 ' width direction W is equipped with the second securing plate being connect with 21 other side of third ribbed stiffener
23 ', 2 entirety of lifting segment is further reinforced by first securing plate 23, the second securing plate 23 ', it is preferred that described
First securing plate 23 and/or the second securing plate 23 ' extend along its length, and are steel plate structure.
Further, since wider width, in order to reinforce the 110, second inside 110 ' of the first inside in span centre casting concrete
Structural safety performance, be provided with several first hangs muscles 13 in first embedded section 1；And/or in second embedded section 1 '
It is provided with several second hangs muscles 13 ', it is preferred that first hangs muscle, 13 and/or second hangs muscle 13 ' is uniform on width direction W
Interval setting, and extend in short transverse H；Thus can the first embedded section 1, the second embedded section 1 ' by add hangs muscle come pair
Structure is integrally reinforced；Preferably, first hangs muscle, 13 and/or second hangs muscle 13 ' is made of fining twisted steel, can be into
Row pre-tightens.
Embodiment two：
Present embodiments provide a kind of construction method of above-mentioned beams of concrete midspan closing structure comprising following steps：
S1, construction form first embedded section, the second embedded section and lifting segment；And the first ribbed stiffener, first are cut
Power tack welding is connected in the first embedded section, the second ribbed stiffener, the second WELDING STUDS is welded in the second embedded section, and third is added
Strength rib, third WELDING STUDS are welded in lifting segment；The first hangs muscle of corresponding installation and the second hangs muscle simultaneously, and tensioning is carried out, reinforce
The general safety of first embedded section, the second pre-buried segment structure；
It is S2, first embedded section and the second embedded section is pre-buried in place, further first is formed on the first inside
Protruding portion, and form the second protruding portion on the second inside；
S3, lifting segment is divided into several subelements, and subelement is lifted into first embedded section and one by one
It between two embedded sections, and is shelved on the first protruding portion and the second protruding portion, and makes lifting segment and the first ribbed stiffener, second
Ribbed stiffener and the alignment of third ribbed stiffener；Thus the lifting segment integral hoisting is pre-buried to first embedded section and second
Between section；
On S4, width direction, the first securing plate is welded in third ribbed stiffener side, other side welding second is reinforced
Thus plate locks the lifting segment；And it is welded further the gap between each subelement of lifting segment, enclosed shape is integral；
And S5, progress reinforcing bar binding and concreting inside the lifting segment, complete beams of concrete midspan closing
The construction of structure.
It should be noted that the technical characteristic in above-described embodiment one, two can carry out arbitrary combination, the technology being composed
Scheme belongs to the scope of protection of the utility model.
In conclusion the concrete-bridge midspan closing structure in the utility model can be from using Hanging Basket etc. in construction
Large scale equipment, and reduce lifting weight by way of lateral piecemeal, it is entire subsequently to close convenient for construction, and after lifting segment closing
The construction of imperial section is all located in enclosed construction, is not had an impact to traffic etc. of opening the navigation or air flight under bridge substantially, it is hidden thus can to eliminate safety
Suffer from, there is wide application space.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of beams of concrete midspan closing structure, which is characterized in that including：First embedded section, the second embedded section and it is located at
Lifting segment between first embedded section and the second embedded section, and the lifting segment entered by way of lifting it is described
In region between first embedded section and the second embedded section.
2. beams of concrete midspan closing structure as described in claim 1, which is characterized in that first embedded section is described in
The side of second embedded section is extended with the first protruding portion；The side of second embedded section towards first embedded section is extended with
Second protruding portion；First protruding portion and the second protruding portion are oppositely arranged, and are provided commonly for carrying the lifting segment.
3. beams of concrete midspan closing structure as claimed in claim 2, which is characterized in that first protruding portion and/or
The width of two protruding portions is 30-60cm.
4. beams of concrete midspan closing structure as described in claim 1, which is characterized in that in the direction of the width, the lifting
Section side is equipped with the first securing plate；And/or the lifting segment other side is equipped with the second securing plate.
5. beams of concrete midspan closing structure as described in claim 1, which is characterized in that be provided in first embedded section
Several first ribbed stiffeners；And/or several second ribbed stiffeners are provided in second embedded section；And/or in the lifting segment
It is provided with several third ribbed stiffeners.
6. beams of concrete midspan closing structure as described in claim 1, which is characterized in that be provided in first embedded section
Several first WELDING STUDSs；And/or several second WELDING STUDSs are provided in second embedded section；And/or in the lifting segment
It is provided with several third WELDING STUDSs.
7. beams of concrete midspan closing structure as described in claim 1, which is characterized in that first embedded section is embedded in
In one concrete structure；And/or second embedded section is embedded in the second concrete structure.
8. beams of concrete midspan closing structure as described in claim 1, which is characterized in that the lifting segment is in the direction of the width
It is divided into several subelements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275011.4U CN208088095U (en) | 2018-02-26 | 2018-02-26 | Beams of concrete midspan closing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275011.4U CN208088095U (en) | 2018-02-26 | 2018-02-26 | Beams of concrete midspan closing structure |
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| Publication Number | Publication Date |
|---|---|
| CN208088095U true CN208088095U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820275011.4U Active CN208088095U (en) | 2018-02-26 | 2018-02-26 | Beams of concrete midspan closing structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193585A (en) * | 2018-02-26 | 2018-06-22 | 中铁工程设计咨询集团有限公司 | Beams of concrete midspan closing structure and its construction method |
| CN111155435A (en) * | 2020-01-08 | 2020-05-15 | 中铁大桥局第七工程有限公司 | Mid-span closure construction method for steel box girder bridge |
-
2018
- 2018-02-26 CN CN201820275011.4U patent/CN208088095U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108193585A (en) * | 2018-02-26 | 2018-06-22 | 中铁工程设计咨询集团有限公司 | Beams of concrete midspan closing structure and its construction method |
| CN111155435A (en) * | 2020-01-08 | 2020-05-15 | 中铁大桥局第七工程有限公司 | Mid-span closure construction method for steel box girder bridge |
| CN111155435B (en) * | 2020-01-08 | 2021-05-14 | 中铁大桥局第七工程有限公司 | Mid-span closure construction method for steel box girder bridge |
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