CN205000328U - Cast -in -place support aquatic steel reinforced concrete composite pile of cable -stay bridge concrete ballast tank roof beam - Google Patents
Cast -in -place support aquatic steel reinforced concrete composite pile of cable -stay bridge concrete ballast tank roof beam Download PDFInfo
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- CN205000328U CN205000328U CN201520540388.4U CN201520540388U CN205000328U CN 205000328 U CN205000328 U CN 205000328U CN 201520540388 U CN201520540388 U CN 201520540388U CN 205000328 U CN205000328 U CN 205000328U
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Abstract
The utility model discloses a cast -in -place support aquatic steel reinforced concrete composite pile of cable -stay bridge concrete ballast tank roof beam, including steel pipe pile cutoff and concrete pile section, the steel pipe pile cutoff includes that the steel protects a section of thick bamboo, and it is uncovered that the steel protects the bottom of a section of thick bamboo, and the concrete pile section is protected the inside steel concrete transitional coupling portion of bobbin base end and is stretched out the steel and protect the drilling portion of pouring into of bobbin base end including lieing in the steel, and top that the steel protected the inherent steel concrete transitional coupling portion of a section of thick bamboo forms vacant lumen, and concrete pile period number is in the bottom of steel pipe pile cutoff and through steel concrete transitional coupling portion and steel pipe pile cutoff fixed connection. The utility model discloses the major structure protects a section of thick bamboo for the top steel, lower some concrete pile's integrated configuration, both full play the advantage of steel -pipe pile basis with drilling bored concrete pile basis, avoided the shortcoming of steel -pipe pile basis with drilling bored concrete pile basis again. Successfully solved ballast tank roof beam aquatic support foundation construction expense height, demolishd the difficulty, crossed the high problem of big vast safe risk.
Description
Technical field
The utility model is used for technical field of bridge construction, particularly relates to steel reinforced concrete compound pile in a kind of cable stayed bridge concrete ballast tank beam cast-in-place support water.
Background technology
Along with the Large scale construction of highway in China, railway through street net, build one after another across river, river, sea-bridge beam in a large number, cable stayed bridge is then one of modal bridge type of Longspan Bridge, meanwhile long-span cablestayed bridges is designed to the span strengthening self, girder generally adopts steel girder form, and end bay side needs to arrange concrete ballast tank beam usually carries out counterweight.As the ballast structure of bridge, ballast tank beam itself must have enough rigidity, intensity and weight, there is crackle in ballast tank beam area great Yi, therefore in work progress, definitely larger sedimentation can not be there is, thus cause cast-in-place support basis arrange require high, especially large span stayed-cable bridge ballast tank beam waterborne is positioned at, its bracket basis is often arranged in bank water, the mud in general riverbed is thicker, geological conditions is also poor, therefore very important to the research on ballast tank beam cast-in-place support basis.
In prior art, in water, cast-in-place support basis generally can adopt steel pipe pile, pile for prestressed pipe and drilled pile form.The shortcoming of prior art:
1, steel pipe pile foundation.During foundation in water employing steel pipe pile, steel pipe pile should design by friction pile, the side of the riverbed sludge layer coefficient that rubs is less, in order to ensure design bearing capacity, whole steel pipe pile length needs to design longer, cause the tonnage of steel pipe pile self larger, to adopt giant caterpillar loop wheel machine to hang large-tonnage vibrating hammer on bank with regard to needs during inserted to play to stand in auxiliary pier cushion cap end face and carry out remote inserted to play or adopt large-scale floating crane to hang large-tonnage vibrating hammer inserted to play or directly by pile driving barge inserted to play in water in water, but the giant caterpillar loop wheel machine of steel pipe pile inserted to play or crane barge and large-tonnage vibrating hammer or pile driving barge admission fee with and lease expenses more expensive, and foundation in water quantity is also few, and for single steel pipe pile, steel use amount is large, its purchase commodity and labour cost are also larger, not too economical, but its flood fighting outlet capacity is strong, cross big vast security risk little.During dismounting, steel pipe pile foundation needs to adopt giant caterpillar loop wheel machine suspension large-tonnage vibrating hammer to stand in auxiliary pier cushion cap end face on bank to carry out remote pile pulling or adopts crane barge in water to hang the pile pulling in water of large-tonnage vibrating hammer, giant caterpillar loop wheel machine or crane barge and large-tonnage vibrating hammer admission fee with and lease expenses more expensive, also not too economy.
2, prestressed pipe pile foundation.During foundation in water employing pile for prestressed pipe, in pile for prestressed pipe water, inserted to play generally need adopt large-scale pile driving barge to march into the arena inserted to play, and the foundation in water of cast-in-place support herein few, pile driving barge admission fee with and lease expenses more expensive, therefore pile driving barge inserted to play of marching into the arena is uneconomical.After pile for prestressed pipe inserted to play completes, pile for prestressed pipe end face is needed to cut flat, end face is set and connects a batch anchor bar, build the rectangular cushion cap of lateral connection, rectangular cushion cap end face establishes large steel plate built-in fitting to connect high steel pipe column, and rectangular bearing platform construction is time-consuming, spend cost also higher, and pile for prestressed pipe in water time, its flood fighting outlet capacity is strong, and security risk is high.Prestressed pipe pile foundation has no idea to remove in water.
3, Bored Pile Foundation.During foundation in water employing drilled pile, need to set up water drilling platform and hole, steel use amount is large.In addition, drilled pile itself is heavier, and add the load and the weight of self that need to bear and transmit on top, drilled pile needs longer stake long, and steel pipe pile of comparing, pile for prestressed pipe, operating expenses is higher.Drilled pile end face needs to dig pile crown, then build the rectangular cushion cap of lateral connection, rectangular cushion cap end face establishes large steel plate built-in fitting to connect high steel pipe column, and rectangular bearing platform construction is time-consuming, spend cost also higher.But its flood fighting outlet capacity is very strong, it is minimum to cross big vast security risk.Bored Pile Foundation part in water also cannot be removed.
Utility model content
For solving the problem, the utility model provides steel reinforced concrete compound pile in cable stayed bridge concrete ballast tank beam cast-in-place support water, successfully solve the foundation construction of ballast tank beam water medium-height trestle costly, remove difficult, cross the high problem of big vast security risk.
The utility model solves the technical scheme that its technical problem adopts: steel reinforced concrete compound pile in cable stayed bridge concrete ballast tank beam cast-in-place support water, comprise steel pipe pile cutoff and concrete pile cutoff, described steel pipe pile cutoff comprises steel pile casting, the bottom of steel pile casting is uncovered, concrete pile cutoff comprises the steel concrete transition connection portion being positioned at steel pile casting bottom inner portion and the drill-pouring portion of stretching out steel pile casting bottom, the top of the inherent steel concrete transition connection portion of steel pile casting forms vacant tube chamber, concrete pile section is positioned at the bottom of steel pipe pile cutoff and is fixedly connected with steel pipe pile cutoff by steel concrete transition connection portion.
Be further used as the improvement of technical solutions of the utility model, described concrete pile cutoff is by pour-shaping under concrete water.
Be further used as the improvement of technical solutions of the utility model, described concrete pile intersegmental part is provided with reinforcing cage.
Be further used as the improvement of technical solutions of the utility model, described steel pipe pile cutoff is also comprised being switched political loyalty by steel pile casting top and is contained in the stand steel pipe on steel pile casting top.
Be further used as the improvement of technical solutions of the utility model, it is circular steel pipe that described steel pile casting and stand steel pipe are cross section, and the caliber of described stand steel pipe is less than or equal to the caliber of steel pile casting.
The beneficial effects of the utility model: the utility model agent structure is upper part steel pile casting, the combining structure of lower part concrete pile, both give full play to the advantage of steel pipe pile foundation and bored pile foundation, turn avoid the shortcoming of steel pipe pile foundation and bored pile foundation.Specific as follows:
(1) first, during the utility model molding construction, more shallow steel pile casting inserted to play only needs little crawler crane to hang small vibration hammer inserted to play, unlike steel pipe pile foundation and prestressed pipe pile foundation construction, need large-scale pile driving barge, crane barge or giant caterpillar loop wheel machine and large-scale vibrating hammer to march into the arena, save operating expenses, construction is simple;
(2) secondly, under the condition of satisfied carrying, concrete pile cutoff bending resistance is much larger than steel pipe pile foundation and prestressed pipe pile foundation, especially flood is crossed in addition when requiring so, geology thicker at mud is poor, the rigidity of the concrete pile cutoff of steel reinforced concrete compound pile bottom is large, opposing flood ability is strong, and stent safety can improve greatly;
(3) last, the more overall drilled pile of steel reinforced concrete compound pile deadweight is light, and its design total length is less than overall drilled pile, provides cost savings; Upper part steel pile casting can cut off recovery, does not need large-scale pile pulling plant equipment to march into the arena, and save cost, pile for prestressed pipe and Bored Pile Foundation are then not recyclable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model structural representation.
Detailed description of the invention
With reference to Fig. 1, that show the concrete structure of the preferred embodiment of the utility model.The design feature of each element of the utility model will be described in detail below, if and when being described to direction (upper and lower, left and right, before and after), be with the structure shown in Fig. 1 for reference describes, but actual user of the present utility model is to being not limited thereto.
The utility model provides steel reinforced concrete compound pile in a kind of cable stayed bridge concrete ballast tank beam cast-in-place support water, comprise steel pipe pile cutoff and concrete pile cutoff 2, described steel pipe pile cutoff is comprised steel pile casting 11 and to be switched political loyalty 12 stand steel pipe 13 being contained in steel pile casting 11 top by steel pile casting top, it is circular steel pipe that described steel pile casting 11 and stand steel pipe 13 are cross section, and the caliber of described stand steel pipe 13 is less than or equal to the caliber of steel pile casting 11.The bottom of steel pile casting 11 is uncovered, concrete pile cutoff 2 comprises the steel concrete transition connection portion 21 being positioned at steel pile casting 11 bottom inner portion and the drill-pouring portion 22 of stretching out steel pile casting 11 bottom, the top of steel pile casting 11 inherent steel concrete transition connection portion 21 forms vacant tube chamber, and concrete pile cutoff 2 is positioned at the bottom of steel pipe pile cutoff and is fixedly connected with steel pipe pile cutoff by steel concrete transition connection portion 21.Described concrete pile cutoff 2 is by concrete casting underwater grouting type, and described concrete pile cutoff 2 inside is provided with reinforcing cage.
During construction with small-sized caterpillar belt loop wheel machine hang the more shallow steel pile casting of small vibration hammer inserted to play 11 can (degree of depth only ensure drilled pile construction not spillage and bear simple and easy punching load), many steel pile casting 11 are linked to be entirety by connection system and spread steel facing as simple and easy punching platform, little crawler crane is adopted to transfer reinforcing cage, concrete perfusion enters certain altitude in steel pile casting 11, and (the drilled pile filling concrete length entered in steel pile casting should ensure that between casing inner concrete and casing inwall, frictional force is greater than the load transmitted on top, to ensure relative sliding not to occur when bearing load between the two, but filling concrete end face should ensure lower than face, riverbed) form steel concrete transition connection portion 21, directly upper bracket is installed at steel pile casting 11 end face.The construction of steel reinforced concrete combined piles foundation form is simple and convenient, both the high cost that pile driving barge or crane barge or giant caterpillar loop wheel machine and large vibrating hammer are marched into the arena had been avoided, steel pile casting 11 construct time double as the foundation pile of drilling platform with saving steel, save cost, directly at steel pile casting 11 end face, spreading steel pipe column of switching political loyalty can be installed again and eliminate rectangular bearing platform construction as support, also can ensure that support anti-flood capacity reduces the security risk of support greatly.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (5)
1. steel reinforced concrete compound pile in cable stayed bridge concrete ballast tank beam cast-in-place support water, it is characterized in that: comprise steel pipe pile cutoff and concrete pile cutoff, described steel pipe pile cutoff comprises steel pile casting, the bottom of steel pile casting is uncovered, concrete pile cutoff comprises the steel concrete transition connection portion being positioned at steel pile casting bottom inner portion and the drill-pouring portion of stretching out steel pile casting bottom, the top of the inherent steel concrete transition connection portion of steel pile casting forms vacant tube chamber, and concrete pile section is positioned at the bottom of steel pipe pile cutoff and is fixedly connected with steel pipe pile cutoff by steel concrete transition connection portion.
2. steel reinforced concrete compound pile in cable stayed bridge concrete ballast tank beam cast-in-place support water according to claim 1, is characterized in that: described concrete pile cutoff is by pour-shaping under concrete water.
3. steel reinforced concrete compound pile in cable stayed bridge concrete ballast tank beam cast-in-place support water according to claim 2, is characterized in that: described concrete pile intersegmental part is provided with reinforcing cage.
4. steel reinforced concrete compound pile in the cable stayed bridge concrete ballast tank beam cast-in-place support water according to claim 1,2 or 3, is characterized in that: described steel pipe pile cutoff is also comprised being switched political loyalty by steel pile casting top and is contained in the stand steel pipe on steel pile casting top.
5. steel reinforced concrete compound pile in cable stayed bridge concrete ballast tank beam cast-in-place support water according to claim 4, is characterized in that: it is circular steel pipe that described steel pile casting and stand steel pipe are cross section, and the caliber of described stand steel pipe is less than or equal to the caliber of steel pile casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540388.4U CN205000328U (en) | 2015-07-23 | 2015-07-23 | Cast -in -place support aquatic steel reinforced concrete composite pile of cable -stay bridge concrete ballast tank roof beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540388.4U CN205000328U (en) | 2015-07-23 | 2015-07-23 | Cast -in -place support aquatic steel reinforced concrete composite pile of cable -stay bridge concrete ballast tank roof beam |
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| Publication Number | Publication Date |
|---|---|
| CN205000328U true CN205000328U (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520540388.4U Expired - Fee Related CN205000328U (en) | 2015-07-23 | 2015-07-23 | Cast -in -place support aquatic steel reinforced concrete composite pile of cable -stay bridge concrete ballast tank roof beam |
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| CN (1) | CN205000328U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316290A (en) * | 2018-03-30 | 2018-07-24 | 中铁第四勘察设计院集团有限公司 | One pile for one column structure without cushion cap and its construction method |
| CN113737627A (en) * | 2021-09-29 | 2021-12-03 | 中铁广州工程局集团有限公司 | Construction method of small-radius curve high-low box special-shaped section steel box girder |
-
2015
- 2015-07-23 CN CN201520540388.4U patent/CN205000328U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316290A (en) * | 2018-03-30 | 2018-07-24 | 中铁第四勘察设计院集团有限公司 | One pile for one column structure without cushion cap and its construction method |
| CN108316290B (en) * | 2018-03-30 | 2024-01-23 | 中铁第四勘察设计院集团有限公司 | One-column one-pile structure without bearing platform and construction method thereof |
| CN113737627A (en) * | 2021-09-29 | 2021-12-03 | 中铁广州工程局集团有限公司 | Construction method of small-radius curve high-low box special-shaped section steel box girder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20200723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |