CN213203758U - Corrugated web steel box - Google Patents
Corrugated web steel box Download PDFInfo
- Publication number
- CN213203758U CN213203758U CN202021836193.1U CN202021836193U CN213203758U CN 213203758 U CN213203758 U CN 213203758U CN 202021836193 U CN202021836193 U CN 202021836193U CN 213203758 U CN213203758 U CN 213203758U
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- composite beam
- concrete composite
- bottom plate
- steel
- web
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Abstract
The utility model discloses a wave form web steel case, including concrete composite beam steel bottom plate, the top both sides of concrete composite beam steel bottom plate are fixed with the wave form steel web, and the top of wave form steel web is fixed with the concrete roof, and the ground tackle is installed to the bottom of concrete composite beam steel bottom plate, and fixes bottom the concrete composite beam steel bottom plate, and one side of ground tackle is provided with the clamping piece, and the inside centre gripping of clamping piece has prestressing force CFRP board and extends to the outside. The utility model relates to a corrugated web steel box, the equipment has no prestressing force CFRP board reinforcing apparatus of bondn and installs simply, will not interrupt the traffic in the course of reinforcing the bridge; the density of the prestressed CFRP plate is small, the specific strength is high, so that the unbonded prestressed CFRP plate reinforcing device is light in weight, the reinforcing device is light, and the dead weight change of the bridge structure is small; the unbonded prestressed CFRP plate is adopted to reinforce the corrugated web steel box-concrete composite beam, so that the construction is simple and convenient, the damage to the beam body is small, and the economic benefit is good.
Description
Technical Field
The utility model relates to a concrete combination beam field, in particular to corrugated web steel box.
Background
In the operation process of the existing corrugated web steel box-concrete composite beam, under the action of circulating traffic, although the stress of the corrugated web steel box-concrete composite beam steel bottom plate is lower than the ultimate strength and even lower than the yield strength, cracks still occur on the corrugated web steel box-concrete composite beam steel bottom plate, the cracks slowly expand along with the passage of time, finally the corrugated web steel box-concrete composite beam steel bottom plate is subjected to fatigue failure, and the service life of the corrugated web steel box-concrete composite beam is greatly shortened.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a wave form web steel case.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a wave form web steel case, including concrete composite beam steel bottom plate, the top both sides of concrete composite beam steel bottom plate are fixed with the wave form steel web, the top of wave form steel web is fixed with the concrete roof, the ground tackle is installed to the bottom of concrete composite beam steel bottom plate, and fixes bottom the concrete composite beam steel bottom plate, one side of ground tackle is provided with the clamping piece, the inside centre gripping of clamping piece has prestressing force CFRP board and extends to the outside, the inside range of prestressing force CFRP board has prestressing force muscle to reserve the pore, and extends to the inside of ground tackle, the bottom both sides of concrete composite beam steel bottom plate all are provided with the support.
As an optimal technical scheme of the utility model, install high strength bolt on the ground tackle, and through high strength bolt with concrete composite beam steel bottom plate installation fixed.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model relates to a corrugated web steel box, which is characterized in that the unbonded prestressed CFRP plate reinforcing device is simple and convenient to install, and the traffic can not be interrupted in the process of reinforcing the bridge; the density of the prestressed CFRP plate is small, the specific strength is high, so that the unbonded prestressed CFRP plate reinforcing device is light in weight, the reinforcing device is light, and the dead weight change of the bridge structure is small; the unbonded prestressed CFRP plate is adopted to reinforce the corrugated web steel box-concrete composite beam, so that the construction is simple and convenient, the damage to the beam body is small, and the economic benefit is good.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic front structural view of the present invention;
fig. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic view of the anchor device of the present invention;
FIG. 5 is a front view of the anchor of the present invention;
FIG. 6 is a schematic side view of the anchor of the present invention;
FIG. 7 is a schematic view of the connection structure between the anchorage device and the prestressed CFRP plate according to the present invention;
in the figure: 1. a concrete top plate; 2. a corrugated steel web; 3. an anchorage device; 4. a prestressed CFRP panel; 5. a concrete composite beam steel bottom plate; 6. a support; 7. a high-strength bolt; 8. a clip; 9. the prestressed tendon is provided with a pore channel.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example 1
As shown in fig. 1-7, the utility model provides a wave form web steel case, including concrete composite beam steel bottom plate 5, concrete composite beam steel bottom plate 5's top both sides are fixed with wave form steel web 2, wave form steel web 2's top is fixed with concrete roof 1, ground tackle 3 is installed to concrete composite beam steel bottom plate 5's bottom, and it is fixed with concrete composite beam steel bottom plate 5 bottom, one side of ground tackle 3 is provided with clamping piece 8, clamping piece 8's inside centre gripping has prestressing force CFRP board 4 and extends to the outside, prestressing force CFRP board 4's inside is arranged and is had prestressing force muscle reservation pore 9, and extend to ground tackle 3's inside, concrete composite beam steel bottom plate 5's bottom both sides all are provided with support 6, install high strength bolt 7 on ground tackle 3, and fix with concrete composite beam steel bottom plate 5 installation through high strength bolt 7.
Specifically, the method for reinforcing the unbonded prestressed CFRP plate of the corrugated web steel box concrete composite beam comprises the following steps:
s1: and (3) construction of the anchorage device system for connecting the concrete composite beam steel bottom plate 5 and the unbonded prestressed CFRP plate 4: according to the design and corresponding specification requirements, firstly, a small hole is formed in a concrete composite beam steel bottom plate 5 of the corrugated web steel box, then an anchorage device 3 system is connected with the concrete composite beam steel bottom plate 5 of the corrugated web steel box through a high-strength bolt 7, and finally the anchorage device 3 system is initially screwed with the concrete composite beam steel bottom plate 5 of the corrugated web steel box;
s2: construction of the unbonded prestressed CFRP plate 4: firstly, placing an unbonded prestressed CFRP plate 4 into a clamping piece 8, and then tightly connecting an anchorage device 3 system with a concrete composite beam steel bottom plate 5 of a corrugated web steel box by screwing a high-strength bolt 7;
s3: construction of prestressed steel bars in the unbonded prestressed CFRP plate 4: firstly, a prestressed tendon is penetrated into a prestressed tendon reserved hole 9 of the unbonded prestressed CFRP plate 4, then the prestressed tendon is tensioned through a jack, and finally the prestressed tendon is anchored through an anchorage device 3 system.
The unbonded prestressed CFRP plate reinforcing device is simple and convenient to mount, and does not interrupt traffic in the process of reinforcing the bridge; the density of the prestressed CFRP plate is small, the specific strength is high, so that the unbonded prestressed CFRP plate reinforcing device is light in weight, the reinforcing device is light, and the dead weight change of the bridge structure is small; the unbonded prestressed CFRP plate is adopted to reinforce the corrugated web steel box-concrete composite beam, so that the construction is simple and convenient, the damage to the beam body is small, and the economic benefit is good.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides a wave form web steel case, includes concrete composite beam steel bottom plate (5), its characterized in that, the top both sides of concrete composite beam steel bottom plate (5) are fixed with wave form steel web (2), the top of wave form steel web (2) is fixed with concrete roof (1), ground tackle (3) are installed to the bottom of concrete composite beam steel bottom plate (5), and fixed with concrete composite beam steel bottom plate (5) bottom, one side of ground tackle (3) is provided with clamping piece (8), the inside centre gripping of clamping piece (8) has prestressing force CFRP board (4) and extends to the outside, the inside range of prestressing force CFRP board (4) has prestressing force muscle to reserve pore (9), and extends to the inside of ground tackle (3), the bottom both sides of concrete composite beam steel bottom plate (5) all are provided with support (6).
2. The corrugated web steel box according to claim 1, wherein the anchorage device (3) is provided with a high-strength bolt (7) and is fixedly arranged with the concrete composite beam steel bottom plate (5) through the high-strength bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021836193.1U CN213203758U (en) | 2020-08-27 | 2020-08-27 | Corrugated web steel box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021836193.1U CN213203758U (en) | 2020-08-27 | 2020-08-27 | Corrugated web steel box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213203758U true CN213203758U (en) | 2021-05-14 |
Family
ID=75843064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021836193.1U Active CN213203758U (en) | 2020-08-27 | 2020-08-27 | Corrugated web steel box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213203758U (en) |
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2020
- 2020-08-27 CN CN202021836193.1U patent/CN213203758U/en active Active
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