CN109555147A - A kind of existing Bridge Group pile foundation reinforcement reconstruction structure and its remodeling method - Google Patents
A kind of existing Bridge Group pile foundation reinforcement reconstruction structure and its remodeling method Download PDFInfo
- Publication number
- CN109555147A CN109555147A CN201811174272.8A CN201811174272A CN109555147A CN 109555147 A CN109555147 A CN 109555147A CN 201811174272 A CN201811174272 A CN 201811174272A CN 109555147 A CN109555147 A CN 109555147A
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- China
- Prior art keywords
- cushion cap
- pile foundation
- cast
- original
- existing
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/48—Foundations inserted underneath existing buildings or constructions
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Abstract
The present invention relates to a kind of existing Bridge Group pile foundation reinforcement reconstruction structures, including existing pile foundation, original cushion cap, it is characterized in that setting supplement pile foundation on the outside of existing cushion cap, cast-in-place cushion cap is arranged in supplement pile foundation and original cushion cap, cast-in-place cushion cap is formed to the package of original cushion cap, cast-in-place cushion cap protrudes on the downside of original cushion cap at supplement pile foundation, forms supporting role to original cushion cap.The invention makes full use of existing structure, effectively improves multi-column pier foundation bearing capacity, saves cost, is good for the environment；It supplements pile foundation and uses cast-in-situ bored pile, flexibly, cast-in-place cushion cap can adjust shape and size according to piling position, and strengthening reconstruction structure exploitativeness is strong for stake diameter, the long selection of stake.
Description
Technical field
The present invention relates to a kind of existing Bridge Group pile foundation reinforcement reconstruction structure and its remodeling methods, are particularly suitable for existing
Multi-column pier foundation supplements the strengthening reconstruction of original cushion cap after pile foundation in bridge reconstruction.
Background technique
During existing bridge reconstruction, route transformation, grade improve etc. due to influence, lead to existing Bridge Group
Pile Bearing Capacity is insufficient, and existing pile foundation and cushion cap technology status are even intact, and existing multi-column pier foundation Demolition Construction is difficult, and
It is uneconomical, not environmentally.To meet existing bridge upgrade requirement, while original multi-column pier foundation is made full use of, saving construction cost, advantageous ring
It protects, a kind of existing Bridge Group pile foundation reinforcement reconstruction structure is suggested.
Summary of the invention
The purpose of the present invention is to provide a kind of existing Bridge Group pile foundation reinforcement reconstruction structures, change suitable for existing bridge
The situation of Bridge Group Pile Bearing Capacity deficiency, can make full use of existing structure caused by building, and effectively improve multi-column pier foundation carrying
Power.
To achieve the goals above, technical scheme is as follows: a kind of existing Bridge Group pile foundation reinforcement transformation knot
Structure, including existing pile foundation, original cushion cap, it is characterised in that supplement pile foundation is set on the outside of existing cushion cap, in supplement pile foundation and original
Have and arrange cast-in-place cushion cap on cushion cap, form cast-in-place cushion cap to the package of original cushion cap, supplement cast-in-place cushion cap at pile foundation protrude into it is original
On the downside of cushion cap, supporting role is formed to original cushion cap.
Further, planting rebar at original cushion cap and cast-in-place cushion cap faying face, lay in cast-in-place cushion cap support stirrup and
Steel tie, it is ensured that pouring rear the old and new's cushion cap can effectively connect.
Further, the rough surface for being not less than 6mm at male and fomale(M&F) is dug at original cushion cap and cast-in-place cushion cap faying face, to increase
Cast-in-place cushion cap is connect with the concrete of original cushion cap.
Further, the supplement pile foundation is cast-in-situ bored pile.
Another object of the present invention is to provide a kind of existing Bridge Group pile foundation reinforcement remodeling methods, are suitable for existing bridge
The situation of Bridge Group Pile Bearing Capacity deficiency, can make full use of existing structure, effectively improve multi-column pier foundation caused by beam is reconstructed
Bearing capacity.
To achieve the goals above, technical scheme is as follows: a kind of existing Bridge Group pile foundation reinforcement transformation side
Method, it is characterised in that the described method includes:
Supplement pile foundation is set on the outside of existing cushion cap；
By existing cushion cap lateral surface dabbing, the rough surface that male and fomale(M&F) is not less than 6mm, while the kind at existing cushion cap lateral surface are formed
Plant reinforcing bar；
Cast-in-place cushion cap is arranged in supplement pile foundation and original cushion cap, is formed cast-in-place cushion cap to the package of original cushion cap, is supplemented pile foundation
Locate cast-in-place cushion cap to protrude on the downside of original cushion cap, supporting role is formed to original cushion cap.
Further, support stirrup and steel tie are laid in the cast-in-place cushion cap.
Further, the supplement pile foundation is cast-in-situ bored pile.
Technical solution of the present invention can achieve the following beneficial effects:
1. the multi-column pier foundation of existing bridge is made full use of to be transformed, avoids the difficulty of original multi-column pier foundation dismounting, reduces
Discarded influence of the structure to environment.
2. the multi-column pier foundation of existing bridge is made full use of to be transformed, the effect of original structure has been played, has been reduced newly-built
The cost of engineering, good economy performance.
3. supplementing pile foundation uses cast-in-situ bored pile, stake position, stake diameter, stake it is long can flexible choice as needed, and construction site
Limit it is small, on existing structure influence it is small, technical solution exploitativeness is strong.
4. the shape and size of cast-in-place cushion cap can be according to flexible cloth of actual conditions such as stake position, the requirement for bearing capacity for supplementing pile foundation
It sets, it is easy for construction.
Detailed description of the invention
Fig. 1 is existing Bridge Group pile foundation reinforcement reconstruction structure floor plan of the present invention.
Fig. 2 is existing Bridge Group pile foundation reinforcement reconstruction structure facade layout drawing of the present invention.
Fig. 3 is existing Bridge Group pile foundation reinforcement reconstruction structure section reinforcement drawing of the present invention.
It include: 1- existing pile foundation in figure, 2- supplements pile foundation, the original cushion cap of 3-, and 4- supplements cushion cap, the original column of 5-, 6- kind
Plant reinforcing bar, 7- support stirrup, 8- steel tie.
Specific embodiment
Below according to Figure of description and specific embodiments of the present invention, the present invention will be further elaborated.
Existing Bridge Group pile foundation reinforcement reconstruction structure mainly includes existing pile foundation, supplement pile foundation, original cushion cap, cast-in-place
The parts such as cushion cap, connection reinforcing bar.
The stake diameter and quantity that require supplementation with pile foundation are determined firstly, calculating according to design, the piling drilling on the outside of existing cushion cap
Bored concrete pile forms supplement pile foundation.
Cast-in-place cushion cap is arranged in the top of original cushion cap and supplement pile foundation later, so that the cast-in-place cushion cap connection supplement stake
Base, while original cushion cap side and top are also connected with cast-in-place cushion cap, realize that cast-in-place cushion cap to " package " of original cushion cap, is such as schemed
Shown in 1 ~ 2.Cast-in-place cushion cap protrudes into certain distance on the downside of original cushion cap at supplement pile foundation, forms supporting role to original cushion cap, such as
Shown in Fig. 2.
Supplement pile foundation is set on the outside of existing cushion cap, which is formed effectively by cast-in-place cushion cap and existing multi-column pier foundation
Connection, to improve the bearing capacity of multi-column pier foundation.
Dabbing is not less than the rough surface of 6mm at male and fomale(M&F) at original cushion cap and cast-in-place cushion cap faying face, to increase cast-in-place hold
Platform is connect with the concrete of original cushion cap.Planting rebar at original cushion cap and cast-in-place cushion cap faying face, interior lay of cast-in-place cushion cap are held
Stirrup is held in the palm, sets steel tie between the cast-in-place cushion cap of original cushion cap two sides and the cast-in-place cushion cap above original cushion cap, it is ensured that pour
Afterwards the old and new's cushion cap can effectively connect, common stress, as shown in Figure 3.
Supplement that the stake position of cast-in-situ bored pile, stake diameter, stake is long to be adjusted as needed, shape, the size of cast-in-place cushion cap
It can be adjusted according to actual conditions such as stake position, the requirement for bearing capacity for supplementing pile foundation, legend pattern is only for reference.
Although the contents of the present invention are discussed in detail through the foregoing embodiment, but it should be appreciated that the description above
It is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention a variety of
Modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (7)
1. a kind of existing Bridge Group pile foundation reinforcement reconstruction structure, including existing pile foundation, original cushion cap, it is characterised in that existing
Supplement pile foundation is set on the outside of cushion cap, cast-in-place cushion cap is arranged in supplement pile foundation and original cushion cap, forms cast-in-place cushion cap and held to original
The package of platform supplements cast-in-place cushion cap at pile foundation and protrudes on the downside of original cushion cap, forms supporting role to original cushion cap.
2. a kind of existing Bridge Group pile foundation reinforcement reconstruction structure as described in claim 1, which is characterized in that original cushion cap with
Planting rebar at cast-in-place cushion cap faying face, cast-in-place cushion cap is interior to lay support stirrup and steel tie, it is ensured that pours rear the old and new's cushion cap
It can effectively connect.
3. a kind of existing Bridge Group pile foundation reinforcement reconstruction structure as described in claim 1, which is characterized in that original cushion cap with
The rough surface for being not less than 6mm at male and fomale(M&F) is dug at cast-in-place cushion cap faying face, to increase the concrete of cast-in-place cushion cap Yu original cushion cap
Connection.
4. a kind of existing Bridge Group pile foundation reinforcement reconstruction structure as described in claim 1, which is characterized in that the supplement stake
Base is cast-in-situ bored pile.
5. a kind of existing Bridge Group pile foundation reinforcement remodeling method, it is characterised in that the described method includes:
Supplement pile foundation is set on the outside of existing cushion cap；
By existing cushion cap lateral surface dabbing, the rough surface that male and fomale(M&F) is not less than 6mm, while the kind at existing cushion cap lateral surface are formed
Plant reinforcing bar；
Cast-in-place cushion cap is arranged in supplement pile foundation and original cushion cap, is formed cast-in-place cushion cap to the package of original cushion cap, is supplemented pile foundation
Locate cast-in-place cushion cap to protrude on the downside of original cushion cap, supporting role is formed to original cushion cap.
6. a kind of existing Bridge Group pile foundation reinforcement remodeling method as claimed in claim 5, which is characterized in that described cast-in-place to hold
Support stirrup and steel tie are laid in platform.
7. a kind of existing Bridge Group pile foundation reinforcement remodeling method as claimed in claim 5, which is characterized in that the supplement stake
Base is cast-in-situ bored pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174272.8A CN109555147A (en) | 2018-10-09 | 2018-10-09 | A kind of existing Bridge Group pile foundation reinforcement reconstruction structure and its remodeling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811174272.8A CN109555147A (en) | 2018-10-09 | 2018-10-09 | A kind of existing Bridge Group pile foundation reinforcement reconstruction structure and its remodeling method |
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| Publication Number | Publication Date |
|---|---|
| CN109555147A true CN109555147A (en) | 2019-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811174272.8A Pending CN109555147A (en) | 2018-10-09 | 2018-10-09 | A kind of existing Bridge Group pile foundation reinforcement reconstruction structure and its remodeling method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055906A (en) * | 2019-04-22 | 2019-07-26 | 同济大学 | The Reinforcement of existing bridge when high-speed rail bridge is worn under shield |
| CN110552364A (en) * | 2019-08-19 | 2019-12-10 | 中建铁投轨道交通建设有限公司 | inverted wedge-shaped expansion construction method for building pile foundation bearing platform |
| CN110820819A (en) * | 2019-10-31 | 2020-02-21 | 山西省交通建设工程质量检测中心（有限公司） | Method for adding pile on existing bridge pile foundation |
| CN114892697A (en) * | 2022-05-24 | 2022-08-12 | 中建二局第三建筑工程有限公司 | Foundation reinforcing structure and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530486U (en) * | 2011-12-27 | 2012-11-14 | 北京中建建筑设计院有限公司 | Pile foundation reinforcing apparatus for current building |
| KR20160087964A (en) * | 2015-01-14 | 2016-07-25 | (주)골든엔지니어링 | Construction method for addition pile |
| CN107165058A (en) * | 2017-05-08 | 2017-09-15 | 中铁上海设计院集团有限公司 | One kind is used for existing operation Bridge pier reinforcement means |
| CN108457204A (en) * | 2018-02-10 | 2018-08-28 | 北京工业大学 | One kind carrying out bracing means for old Bridge Foundation Lack of support |
-
2018
- 2018-10-09 CN CN201811174272.8A patent/CN109555147A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202530486U (en) * | 2011-12-27 | 2012-11-14 | 北京中建建筑设计院有限公司 | Pile foundation reinforcing apparatus for current building |
| KR20160087964A (en) * | 2015-01-14 | 2016-07-25 | (주)골든엔지니어링 | Construction method for addition pile |
| CN107165058A (en) * | 2017-05-08 | 2017-09-15 | 中铁上海设计院集团有限公司 | One kind is used for existing operation Bridge pier reinforcement means |
| CN108457204A (en) * | 2018-02-10 | 2018-08-28 | 北京工业大学 | One kind carrying out bracing means for old Bridge Foundation Lack of support |
Non-Patent Citations (1)
| Title |
|---|
| 谢开仲等: "《桥梁加固与改造》", 31 May 2017, 电子科技大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055906A (en) * | 2019-04-22 | 2019-07-26 | 同济大学 | The Reinforcement of existing bridge when high-speed rail bridge is worn under shield |
| CN110552364A (en) * | 2019-08-19 | 2019-12-10 | 中建铁投轨道交通建设有限公司 | inverted wedge-shaped expansion construction method for building pile foundation bearing platform |
| CN110820819A (en) * | 2019-10-31 | 2020-02-21 | 山西省交通建设工程质量检测中心（有限公司） | Method for adding pile on existing bridge pile foundation |
| CN114892697A (en) * | 2022-05-24 | 2022-08-12 | 中建二局第三建筑工程有限公司 | Foundation reinforcing structure and construction method thereof |
| CN114892697B (en) * | 2022-05-24 | 2023-02-03 | 中建二局第三建筑工程有限公司 | Foundation reinforcing structure and construction method thereof |
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Application publication date: 20190402 |