CN204608695U - A kind of New-old concrete horizontal bedding syndeton - Google Patents
A kind of New-old concrete horizontal bedding syndeton Download PDFInfo
- Publication number
- CN204608695U CN204608695U CN201520203592.7U CN201520203592U CN204608695U CN 204608695 U CN204608695 U CN 204608695U CN 201520203592 U CN201520203592 U CN 201520203592U CN 204608695 U CN204608695 U CN 204608695U
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- concrete
- old concrete
- reserved
- old
- Prior art date
- 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.)
- Active
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a kind of New-old concrete horizontal bedding syndeton, comprise old concrete and as placed concrete, reinforcing bar A is reserved with in described old concrete, post-installing rebar B in described as placed concrete, as placed concrete is adopted by reinforcing bar A reserved in post-installing rebar B and old concrete and is welded to connect; Described reinforcing bar B implants in old concrete in the boring of distance reinforcing bar A opposite position 10 ~ 20cm place, is weldingly connected after the top fold of described reinforcing bar B with the reinforcing bar A be reserved in old concrete.The utility model can determine the stability of superstructure, simultaneously more simple, convenient when the aspect of process, is conducive to accelerating engineering construction progress; And connecting reinforcement can be implanted in the position boring apart from the corresponding inner side 10cm ~ 20cm of former reserved steel bar, does not destroy the horizontal steel bar in old concrete and original concrete cover; Can drop into large number quipments, bit penetrating rate is fast, and efficiency is high.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering technical field, particularly relates to a kind of New-old concrete horizontal bedding syndeton.
Background technology
In hydraulic structure, reserved steel bar in former concrete structure aspect usually, plays connection function to reinforcing bar during later stage top concrete construction.Because this building is flood discharge overcurrent building, construction by stages is needed to complete according to factors such as the function of itself and the impacts of duration; After the first stage has constructed, current need through completing part, and water flow is larger, top reserved part reinforcing bar is made to be in the effect of surge pressure frequently, so along with the prolongation of time, reserved steel bar intensity is reduced, structural plane is caused to be in weak link, stablizing of unfavorable structure.For the process of follow-up concrete structure aspect, prior art mainly carries out intensity detection to reserved steel bar, according to testing result, it is assessed, whether meet the requirement of strength of subsequent structural, if do not meet and need remove this part reinforcing bar, be welded to connect new reinforcing bar, this situation easily destroys original structure, unfavorable to structure.Whole detection simultaneously, replacement process time length, complex procedures, be unfavorable for quality and the progress of engineering.
Utility model content
For solving the problem, the utility model provides a kind of New-old concrete horizontal bedding syndeton.Thus determine the stability of superstructure, and more simple, convenient when the aspect of process, be conducive to accelerating engineering construction progress.
The utility model is achieved by following technical solution.
A kind of New-old concrete horizontal bedding syndeton, comprise old concrete and as placed concrete, be reserved with reinforcing bar A in described old concrete, post-installing rebar B in described as placed concrete, as placed concrete is adopted by reinforcing bar A reserved in post-installing rebar B and old concrete and is welded to connect.
Described reinforcing bar B implants in old concrete in the boring of distance reinforcing bar A opposite position 10 ~ 20cm place.
Be weldingly connected with the reinforcing bar A be reserved in old concrete after the top fold of described reinforcing bar B.
The beneficial effects of the utility model are:
Compared with prior art, the utility model enables later stage concrete structure meet the model of structural calculation, ensures that the combination of structural level meets the demands, determines the stability of superstructure, simultaneously more simple, convenient when the aspect of process, be conducive to accelerating engineering construction progress.Connecting reinforcement can be implanted in the position boring apart from the corresponding inner side 10cm ~ 20cm of former reserved steel bar simultaneously, does not destroy the horizontal steel bar in old concrete and original concrete cover; Can drop into large number quipments, bit penetrating rate is fast, and efficiency is high; After connecting reinforcement welds with reserved steel bar, structural integrity is good, has broad application prospects.
Accompanying drawing explanation
Fig. 1 is the syndeton schematic diagram of old concrete and as placed concrete;
Fig. 2 is old concrete deck structure schematic diagram in the utility model;
Fig. 3 is post-installing rebar structural representation in the utility model.
In figure: 1-old concrete, 2-bond between fresh and hardened concretes aspect, the outer as placed concrete of 3-reinforcing bar A, 4-, 5-reinforcing bar B.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1 to Figure 3, a kind of New-old concrete horizontal bedding syndeton described in the utility model, comprise old concrete 1 and as placed concrete 4, reinforcing bar A3 is reserved with in described old concrete 1, post-installing rebar B5 in described as placed concrete 4, as placed concrete 4 is adopted by reinforcing bar A3 reserved in post-installing rebar B5 and old concrete 1 and is welded to connect.In the technical program, said as placed concrete 4 is rear pouring concrete, and old concrete 1 is first pouring concrete, when implementing, by implanting reinforcing bar B5 in bond between fresh and hardened concretes aspect 2, is weldingly connected by reinforcing bar A3 reserved in reinforcing bar B5 and old concrete 1.Reinforcing bar A3 reserved in described old concrete 1 is as the structure reinforcing bars of follow-up concreting.
Described reinforcing bar B5 implants in old concrete 1 in the boring of distance reinforcing bar A3 opposite position 10 ~ 20cm place.And the rear anchorage length of reinforcing bar B5 in old concrete 1 implanted meets code requirement.
Be weldingly connected with the reinforcing bar A3 be reserved in old concrete 1 after the top fold of described reinforcing bar B5.
As shown in Figure 2, the utility model mainly carries out in accordance with the following steps when implementing:
The first step, 10 ~ 20cm distance range internal drilling of corresponding reserved steel bar A3 on old concrete 1, and hole depth meets code requirement;
Second step, is processed into the pattern of bending by reinforcing bar B5;
3rd step, the first step the reinforcing bar B5 after being implanted into bending that holes;
4th step, adopts the working of neo-implanted reinforcing bar B5 and reserved steel bar A3 and is welded to connect.
The utility model has applied in the construction of one-level power station, pillow dam 3# ~ 5# sluice gate pier.Due to 3# ~ 5# sluice gate pier be poured into 595 elevations after need to carry out overcurrent as diversion canal section, but the reinforcing bar of Gate Piers needs to be reserved on gate pier in advance.Through the large discharge overcurrent in two flood seasons, reinforcing bar reserved on gate pier produces fatigue damage by the impact of current, and part reinforcing bar does not reach designing requirement in the intensity close to New-old concrete aspect position.For meeting field engineering schedule requirement, adopt bar planting inside reserved steel bar in aspect, implant reinforcing bar to be welded to connect by bending and former reserved steel bar on top, complete the connection of lower rebar and upper reinforcement in this way, from practical application achievement, respond well, and improve efficiency, accelerate construction speed.
Claims (3)
1. a New-old concrete horizontal bedding syndeton, it is characterized in that: comprise old concrete (1) and as placed concrete (4), reinforcing bar A (3) is reserved with in described old concrete (1), the interior post-installing rebar B (5) of described as placed concrete (4), as placed concrete (4) is adopted by reinforcing bar A (3) reserved in post-installing rebar B (5) and old concrete (1) and is welded to connect.
2. a kind of New-old concrete horizontal bedding syndeton according to claim 1, is characterized in that: described reinforcing bar B (5) is implanted in old concrete (1) in the boring of distance reinforcing bar A (3) opposite position 10 ~ 20cm place.
3. a kind of New-old concrete horizontal bedding syndeton according to claim 1, is characterized in that: be weldingly connected with the reinforcing bar A (3) be reserved in old concrete (1) after the top fold of described reinforcing bar B (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203592.7U CN204608695U (en) | 2015-04-07 | 2015-04-07 | A kind of New-old concrete horizontal bedding syndeton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203592.7U CN204608695U (en) | 2015-04-07 | 2015-04-07 | A kind of New-old concrete horizontal bedding syndeton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204608695U true CN204608695U (en) | 2015-09-02 |
Family
ID=53961256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520203592.7U Active CN204608695U (en) | 2015-04-07 | 2015-04-07 | A kind of New-old concrete horizontal bedding syndeton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204608695U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012892A (en) * | 2017-04-14 | 2017-08-04 | 中建五局土木工程有限公司 | New-old concrete interface waterproof construction and processing method |
| CN109518985A (en) * | 2018-10-10 | 2019-03-26 | 广东省建筑设计研究院 | A kind of design and construction method improving the power transmission of new-old concrete interface |
-
2015
- 2015-04-07 CN CN201520203592.7U patent/CN204608695U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012892A (en) * | 2017-04-14 | 2017-08-04 | 中建五局土木工程有限公司 | New-old concrete interface waterproof construction and processing method |
| CN109518985A (en) * | 2018-10-10 | 2019-03-26 | 广东省建筑设计研究院 | A kind of design and construction method improving the power transmission of new-old concrete interface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101614125B (en) | Construction method of V-level surrounding rock tunnel | |
| CN205116185U (en) | A supporting construction for weak soil foundation ditch | |
| CN105780719A (en) | Heightened construction method for active service stone building bank protecting wall | |
| CN109826084A (en) | A kind of aqueduct method for repairing seepage | |
| CN103225285A (en) | Steel membrane concrete faced rockfill dam | |
| CN204608695U (en) | A kind of New-old concrete horizontal bedding syndeton | |
| CN106592580B (en) | A kind of the prefabricated pile device and its construction method of the fast permeable speed of self-pressurization | |
| CN215629929U (en) | Novel site operation structure of anti-floating anchor rod | |
| CN203307776U (en) | Concrete face rock fill dam toe board structure | |
| CN105927246A (en) | High-pressure tunnel lining concrete uplift failure repair method | |
| CN207260148U (en) | Service sleeve pile crown integrally abolishes device | |
| CN203768914U (en) | Foundation pit bracing diagonal support pile structure | |
| CN203782695U (en) | Reinforced tube pile concrete structure | |
| CN106337530B (en) | A kind of construction of frame beam seams stifled construction method | |
| CN103741651B (en) | A kind of concrete teeth groove stiling basin and construction method thereof | |
| CN203741792U (en) | Concrete tooth groove stilling basin | |
| CN108755721A (en) | A kind of novel cofferdam method for protecting support for crossing piping lane construction in water river | |
| CN204356915U (en) | The self waterproof structure that steel pipe column is crossing with concrete of basement exterior wall | |
| CN210827553U (en) | Consolidate retaining wall structure | |
| CN107964975A (en) | The PBL shear connectors connection structure and its construction method of steel pipe composite pile and cushion cap | |
| CN209585028U (en) | A kind of open caisson applies broken pile | |
| CN203891028U (en) | Supporting structure of reinforced steel sheet piles and core tube bracings in deep foundation pit | |
| CN208455615U (en) | A kind of prefabricated guide groove structure of concrete cut | |
| CN203729280U (en) | Water retaining structure of lower sluice gate for blocking lower water head flow-guiding hole | |
| CN104762924A (en) | Upper storage reservoir basin seepage preventing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |