CN211395307U - Quick construction structure of whole bridge - Google Patents
Quick construction structure of whole bridge Download PDFInfo
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- CN211395307U CN211395307U CN201922108049.XU CN201922108049U CN211395307U CN 211395307 U CN211395307 U CN 211395307U CN 201922108049 U CN201922108049 U CN 201922108049U CN 211395307 U CN211395307 U CN 211395307U
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Abstract
The utility model provides a quick construction structure of whole bridge, including prefabricated abutment, prefabricated bridge girder and prefabricated attachment strap, prefabricated bridge girder puts in the upper portion of prefabricated abutment, prefabricated abutment upper portion has bellied accepting towards one side of sleeper beam, and the accepting of prefabricated abutment has the connecting reinforcement that the side direction extends, the lateral part of prefabricated bridge girder has for connecting reinforcement male jack, the accepting upper surface is arranged in to prefabricated attachment strap one end, and the other end is fixed in the sleeper beam upper surface, and prefabricated abutment bottom is fixed with the pile foundation, the utility model discloses simple structure, whole abutment and girder connection are as an organic whole, have strengthened the wholeness of structure, adopt a large amount of prefabricated component, transport to the construction site and assemble fast, reduce the influence reduce cost of bridge construction to current traffic to the at utmost.
Description
Technical Field
The utility model relates to a quick construction structure of whole bridge.
Background
In recent years, national economic development and national policies of China are constantly changing. With the rapid development of modern construction, the requirements of people on the quality of life are greatly improved. Although the integral bridge is not widely applied in China, the integral bridge is quite mature in this respect abroad, and one of the main challenges in the design of the integral bridge structure is that owners and residents not only require the safety and durability of the bridge structure, but also require rapid construction to reduce the interference to surrounding traffic, shorten the blocking time and reduce various noises generated in transportation vehicles and construction processes. This all contributes to the need for a fast, efficient construction method for the entire bridge.
Disclosure of Invention
The utility model discloses improve above-mentioned problem, promptly the to-be-solved technical problem of the utility model is that current bridge construction cycle is longer to the surrounding environment influence great.
The utility model discloses a concrete implementation scheme is: the utility model provides a quick construction structure of whole bridge, includes prefabricated abutment, prefabricated bridge girder and prefabricated attachment strap, prefabricated bridge girder erects on the upper portion of prefabricated abutment, prefabricated abutment upper portion has bellied accepting portion towards one side of sleeper beam, and the accepting portion of prefabricated abutment has the connecting reinforcement that the side direction extends, the lateral part of prefabricated bridge girder has for connecting reinforcement male jack, accepting portion upper surface is arranged in to prefabricated attachment strap one end, and the other end is fixed in the sleeper beam upper surface, and prefabricated abutment bottom is fixed with the pile foundation.
Furthermore, the upper surface of precast bridge girder has the bridge deck pavement layer, the one end that prefabricated attachment strap deviates from the sleeper beam is connected with precast bridge girder and bridge deck pavement layer.
Furthermore, a cast-in-place ultrahigh-performance concrete layer is arranged outside the joint of the bearing part and the main beam of the precast bridge.
Further, the connecting steel bars and the jacks have the same diameter.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses abutment and prefabricated bridge girder are that UHPC (ultra high performance concrete) prefabricate forms, transport to the job site and assemble fast, reduce the influence of bridge construction to current traffic and the huge expense that traffic control arouses to the at utmost; the integral bridge abutment and the main beam are connected into a whole, so that the structural integrity is enhanced, and the quick construction of the integral bridge is not complicated for the current construction technology;
2. the prefabricated bridge girder is made of UHPC concrete material, so that the rigidity is lower, the deformation of the prefabricated bridge girder can be absorbed under the action of temperature and vehicle load, and the energy consumption effect can be realized under the action of earthquake;
3. the prefabricated bridge main beam and the prefabricated bridge abutment are provided with the connecting steel bars which are connected with each other and are connected through the cast-in-place UHPC, and compared with common concrete, the prefabricated bridge main beam and the prefabricated bridge abutment are high in strength, good in impermeability and good in durability.
In a word, the rapid construction structure of the integral bridge provided by the invention has the advantages of high universality and convenience in construction, meanwhile, the construction progress can be accelerated, the workload of site construction is reduced, the integral construction quality of structural members and finished bridges is improved, meanwhile, damaged members are more conveniently replaced, the maintenance cost is reduced, and the rapid construction structure is economical and reasonable.
Drawings
FIG. 1 is an overall schematic view of the present invention
FIG. 2 is a schematic view of the prefabricated abutment structure of FIG. 1
FIG. 3 is a partial schematic view of a precast bridge girder
In the figure: 1. prefabricating a butt strap; 2. a bolster; 3, a bridge deck pavement layer; 4. reinforcing steel bars inside the abutment; 5. prefabricating a bridge abutment; 51. a receiving part; 6. pile foundations; 7. prefabricating a bridge girder; 8. and connecting the reinforcing steel bars.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, a rapid construction structure of an integral bridge includes a sleeper beam 2, a prefabricated bridge abutment 5, a prefabricated bridge main beam 7 and a prefabricated bridge strap 1, wherein the prefabricated bridge main beam is erected on the upper portion of the prefabricated bridge abutment 5, a convex receiving portion 51 is arranged on one side of the upper portion of the prefabricated bridge abutment facing the sleeper beam 2, a laterally extending connecting steel bar 8 is arranged on the side portion of the receiving portion 51, a jack for inserting the connecting steel bar 8 is arranged on the side portion of the prefabricated bridge main beam, in this embodiment, the diameter of the jack is the same as that of the connecting steel bar 8 of the prefabricated bridge abutment 5, and the prefabricated bridge main beam 7 is made of UHPC material.
One end of the prefabricated butt strap 1 is arranged on the upper surface of the bearing part, the other end of the prefabricated butt strap is fixed on the upper surface of the sleeper beam 2, and a pile foundation 6 is fixed at the bottom of the prefabricated bridge abutment. The joint of the bearing part 51 and the main beam of the prefabricated bridge is also provided with an ultra-high performance concrete layer cast by ultra-high performance concrete.
In this embodiment, the upper surface of precast bridge girder 7 has bridge deck pavement layer 3, the one end that prefabricated attachment strap 1 deviates from sleeper beam 2 is connected with precast bridge girder 7 and bridge deck pavement layer 3.
The construction is carried out according to the following steps:
(1) prefabricating the prefabricated bridge girder 7 and the prefabricated bridge abutment 5, wherein the prefabricated bridge girder 7 is an UHPC girder with jacks, steel bars are connected to the prefabricated bridge abutment 5, and the size of the jacks of the prefabricated bridge girder 7 is consistent with the diameter of the steel bars reserved on the bridge abutment;
(2) constructing a pile foundation 6, wherein the foundation form mainly aims at a flexible pile foundation or a small-diameter pile foundation, meets the design requirement and connects a main beam 7 of the prefabricated bridge with the pile foundation according to a conventional construction method;
(3) erecting a prefabricated bridge main beam 7 on a prefabricated bridge abutment, inserting a reserved steel bar 8 into a jack of the prefabricated bridge main beam 7 to realize the connection of the prefabricated bridge main beam 7 and the prefabricated bridge abutment, and casting the connection position in situ by UHPC;
(4) placing the prefabricated butt strap 1, and respectively connecting the two ends of the prefabricated butt strap 1 with the sleeper beam 2 and the prefabricated bridge main beam 7, wherein the upper part of the prefabricated bridge main beam 7 is provided with a bridge deck pavement layer 3.
The invention starts from the stages of design, construction and maintenance, fundamentally solves the problems of slow and time-consuming common construction of the whole bridge, namely, the construction speed of the whole bridge and the shock resistance of the whole bridge can be effectively improved after the rapid construction method and the structure of the whole bridge are adopted.
Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.
Also, above-mentioned the utility model discloses if disclose or related to mutually fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.
The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (4)
1. The utility model provides a quick construction structure of whole bridge, its characterized in that, includes prefabricated abutment, prefabricated bridge girder and prefabricated attachment strap, prefabricated bridge girder erects on the upper portion of prefabricated abutment, prefabricated abutment upper portion has bellied accepting towards one side of sleeper beam, and the accepting of prefabricated abutment has the connecting reinforcement that the side direction extends, the lateral part of prefabricated bridge girder has for connecting reinforcement male jack, accepting upper surface is arranged in to prefabricated attachment strap one end, and the other end is fixed in the sleeper beam upper surface, and prefabricated abutment bottom is fixed with the pile foundation.
2. The rapid construction structure of an integral bridge according to claim 1, wherein: the upper surface of precast bridge girder has the bridge deck pavement layer, the one end that prefabricated attachment strap deviates from the sleeper beam is connected with precast bridge girder and bridge deck pavement layer.
3. The rapid construction structure of an integral bridge according to claim 1, wherein: and a cast-in-situ ultrahigh-performance concrete layer is arranged outside the joint of the bearing part and the main beam of the prefabricated bridge.
4. The rapid construction structure of an integral bridge according to claim 1, wherein: the connecting steel bars and the jacks have the same diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922108049.XU CN211395307U (en) | 2019-11-29 | 2019-11-29 | Quick construction structure of whole bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922108049.XU CN211395307U (en) | 2019-11-29 | 2019-11-29 | Quick construction structure of whole bridge |
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| CN211395307U true CN211395307U (en) | 2020-09-01 |
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| CN201922108049.XU Active CN211395307U (en) | 2019-11-29 | 2019-11-29 | Quick construction structure of whole bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761163A (en) * | 2019-11-29 | 2020-02-07 | 福州大学 | Rapid construction structure of integral bridge and construction method thereof |
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2019
- 2019-11-29 CN CN201922108049.XU patent/CN211395307U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761163A (en) * | 2019-11-29 | 2020-02-07 | 福州大学 | Rapid construction structure of integral bridge and construction method thereof |
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