CN209011153U - Resistance to plucking round steel pipe pilework is augmented on existing structure sole plate - Google Patents
Resistance to plucking round steel pipe pilework is augmented on existing structure sole plate Download PDFInfo
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- CN209011153U CN209011153U CN201821254428.9U CN201821254428U CN209011153U CN 209011153 U CN209011153 U CN 209011153U CN 201821254428 U CN201821254428 U CN 201821254428U CN 209011153 U CN209011153 U CN 209011153U
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- existing structure
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- structure sole
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Abstract
The utility model belongs to building engineering field, specifically, it is related to augmenting resistance to plucking round steel pipe pilework on a kind of existing structure sole plate, it includes: existing structure sole plate that resistance to plucking round steel pipe pilework is augmented on existing structure sole plate, piling hole is opened on existing structure sole plate, by piling hole, circular steel tubular pole is pressed into the foundation soil under existing structure sole plate, passes through piling hole after the completion of piling and carries out envelope pile driving construction.The utility model can make full use of existing structure to have the characteristics of certain bearing capacity, without carrying out provisional construction safety strutting means, not only reduce construction cost, also improve construction efficiency；It is few to existing structure damage, and the normal function without interrupting existing building uses；It is obvious to promote effect for structure basis bottom plate anti-floating bearing capacity after transformation, and is able to satisfy using safe, durability and anti-earthquake ductility requirement, applied widely.
Description
Technical field
The utility model belongs to building engineering field, and in particular, to augments resistance to plucking on a kind of existing structure sole plate
Round steel pipe pilework.
Background technique
With the rapid development of urban construction, the basement structure of overlarge area is used widely, to engineering design,
Construction brings many new technical problems, and wherein the anti-floating problem of basement seems especially prominent.The estimation of level of ground water is not
Foot, directly will lead to a degree of destruction of basement structure, thus just needs to take a series of reinforcement and strengthening measure.
Circular steel tubular pole feature: section is small, and extrusion soil product is small, and pile sinking penetration capability is strong, and bearing capacity is high, easily splices.Circle
Shape steel-pipe pile and conventional piles base phase ratio have many advantages, such as lightweight, antidetonation, high intensity, low energy consumption, materials are convenient.
However, in existing resisting buoyancy of foundation reinforcement technique, mend drilled pile, increase ballast etc., generally existing anti-floating
The problems such as anti-seismic performance reduces after effect is poor, construction is big by environmental influence, construction cost is high and reinforcing.
Utility model content
To overcome defect of the existing technology, the utility model, which provides one kind and augments on existing structure sole plate, to be resisted
Pull out the structure of circular steel tubular pole.
To achieve the above object, the utility model uses following technical scheme:
Resistance to plucking round steel pipe pilework is augmented on existing structure sole plate, comprising: existing structure sole plate, existing knot
Piling hole is set on structure sole plate, by piling hole, circular steel tubular pole is pressed into the foundation soil under existing structure sole plate
It is interior, pass through piling hole after the completion of piling and carries out envelope pile driving construction.
Preferably, welding stake top in round steel pipe stake top portion connects reinforcing bar, to guarantee circular steel tubular pole and existing structure basis
Effective force between bottom plate.
Preferably, the existing structure sole plate after aperture and rear pouring concrete pier carry out at New-old concrete interface
Dabbing and set slurry, remove loose, the damaged and surface carbonation layer in original concrete, and implant interface distributing bar, to guarantee
Effective connection of New-old concrete.
Preferably, brick fetal membrane is arranged in rear pouring concrete pier and the foundation soil contact site of existing structure sole plate bottom,
And poured using microdilatancy early strength concrete, with the pouring quality of pouring concrete pier after guarantee.
Preferably, bottom base plate reinforcing bar is welded on the existing structure sole plate bottom muscle after truncation, after truncation both
Have and weld reinforcing bar at the top of bottom plate in structure basis bottom plate pressing lever, to guarantee that the bearing capacity of existing structure sole plate does not drop
It is low.
The implementation of resistance to plucking round steel pipe pilework is augmented on above-mentioned existing structure sole plate, comprising the following steps:
S1, setting-out is measured according to design stake position, piling hole is outputed on existing structure sole plate, piling hole is truncated
Interior existing structure sole plate bottom muscle and existing structure sole plate pressing lever, then according to the size of the rear pouring concrete pier of design
It is required that emptying existing structure sole plate bottom stake holes periphery soil；
S2, refer to fixed pile progress test pile, and finally determine final pressing pile force and the stake of pressing pile construction according to test pile result
Long control technology index；
S3, reaction frame is installed in piling position, is slowly pressed into first pitch circle shape steel-pipe pile, then welds the second section stake, slowly
Indentation so repeats merogenesis and welds and be slowly pressed into soil layer, until terminating piling after meeting design requirement；
Pressure pile reaction frame is being installed when piling aperture and staking out it may first have to keep the vertical of pile driving frame, gradient is not
It obtains more than 1%；
When piling jack and pile cutoff central axes should be maintained on same vertical line, the degree of eccentricity must not exceed 1%, in piling
Process must check at any time pile body it is whether vertical, while should continuously construct as far as possible when piling；
When being connected between round steel pipe pile section, directly welded on tube wall；
Reaction frame should be changed when final pressure immediately, uses jack pressurization with stable settlement；
S4, envelope stake
Brick fetal membrane is built according to design requirement；The old and new of existing structure sole plate and rear pouring concrete pier after aperture
Dabbing and set slurry are carried out at concrete interface, remove loose, the damaged and surface carbonation layer in original concrete, and plant boundary
Surface construction reinforcing bar, to guarantee effective connection of New-old concrete；Connected according to design requirement in round steel pipe stake top portion welding stake top
Connect reinforcing bar；Reinforcing bar at the top of bottom base plate reinforcing bar and bottom plate is welded according to design requirement；Using the early strong coagulation of microdilatancy
Soil pours filling in fact, and maintenance removes loading device after reaching intensity；
When brick fetal membrane is built, absolute altitude, position, size should closely conform to design requirement, support fixed reliable, brick fetal membrane piece
Tightly；Microdilatancy early strength concrete pours filling in fact, vibrates, and conserves.
Compared with prior art, the utility model has the following beneficial effects:
1) circular steel tubular pole section is small, and extrusion soil product is small, and pile sinking penetration capability is strong, and bearing capacity is high, easily splices, circular steel
Tubular pole and conventional piles base phase ratio have many advantages, such as lightweight, anti-earthquake ductility are good, high-intensitive, low energy consumption, materials are convenient；
2) without carrying out component dismounting to existing structure, existing structure is damaged less, and without interrupting existing building
Normal function uses, and the function without interrupting existing building uses, and can largely improve the anti-floating of structure after transformation
Bearing capacity also has the advantages that construction is convenient, construction quality is high low with construction cost；
3) existing structure is made full use of to have the characteristics of certain bearing capacity, without carrying out provisional construction safety support
Measure not only reduces construction cost, also improves construction efficiency；
4) pass through New-old concrete boundary surface treatment, and set interface distributing bar, ensure that the effective of New-old concrete
Connection.
Detailed description of the invention
Fig. 1 is the structural plan schematic diagram that resistance to plucking circular steel tubular pole is augmented on existing structure sole plate；
Fig. 2 is the structural profile illustration that resistance to plucking circular steel tubular pole is augmented on existing structure sole plate；
Fig. 3 is stake top connection plane detail drawing；
In figure: 1, existing structure sole plate, 2, piling hole, 3, circular steel tubular pole, 4, Interface Construction reinforcing bar, 5, bottom plate bottom
Portion's reinforcing bar, 6, bottom plate top reinforcing bar, 7, existing structure sole plate bottom muscle, 8, existing structure sole plate pressing lever,
9, stake top connects reinforcing bar, 10, rear pouring concrete pier, 11, brick fetal membrane, 12, New-old concrete interface.
Specific embodiment
As shown in Figure 1 to Figure 3, resistance to plucking round steel pipe pilework is augmented on existing structure sole plate, comprising: existing structure
Piling hole 2 is arranged on existing structure sole plate 1 for sole plate 1, and existing structure sole plate 1 is located at existing in piling hole 2
Structure basis bottom rib of bottom floor 7, existing structure sole plate pressing lever 8 are truncated, and circular steel tubular pole 3 is pressed into existing by piling hole 2
In foundation soil under structure basis bottom plate 1, it is 50mm, circular steel that the top surface of circular steel tubular pole 3, which enters existing structure sole plate 1,
3 top of tubular pole is arranged stake top and connects reinforcing bar 9, and stake top connection reinforcing bar 9, which meets anchorage length into existing structure sole plate 1, to be wanted
It asks, brick fetal membrane 11 is arranged in 2 lower part of piling hole, pouring concrete pier 10 is formed after passing through 2 casting concrete of piling hole in brick fetal membrane 11,
The existing structure sole plate bottom muscle 7 that is truncated in piling hole 2, existing structure sole plate pressing lever 8 pass through bottom base plate respectively
6 connection reinforcement of reinforcing bar at the top of reinforcing bar 5, bottom plate, existing structure sole plate 1 and rear pouring concrete pier 10 are mixed in the old and new
Implant interface distributing bar 4 at solidifying soil interface 12.
The implementation of resistance to plucking round steel pipe pilework is augmented on above-mentioned existing structure sole plate, comprising the following steps:
S1, setting-out is measured according to design stake position, piling hole 2 is outputed on existing structure sole plate 1, piling is truncated
Existing structure sole plate bottom muscle 7 and existing structure sole plate pressing lever 8 in hole 2, then according to the rear pouring concrete pier of design
10 size requires to empty 1 bottom stake holes periphery of existing structure sole plate soil；
S2, refer to fixed pile progress test pile, and finally determine final pressing pile force and the stake of pressing pile construction according to test pile result
Long control technology index；
S3, reaction frame is installed in piling position, is slowly pressed into first pitch circle shape steel-pipe pile 3, then welds the second section stake, slowly
Indentation so repeats merogenesis and welds and be slowly pressed into soil layer, until terminating piling after meeting design requirement；
Pressure pile reaction frame is being installed when 2 mouthfuls of piling hole and staking out it may first have to keep the vertical of pile driving frame, gradient is not
It obtains more than 1%；
When piling jack and pile cutoff central axes should be maintained on same vertical line, the degree of eccentricity must not exceed 1%, in piling
Process must check at any time pile body it is whether vertical, while should continuously construct as far as possible when piling；
When 3 internode of circular steel tubular pole connects, directly welded on tube wall；
Reaction frame should be changed when final pressure immediately, uses jack pressurization with stable settlement；
S4, envelope stake
Brick fetal membrane 11 is built according to design requirement, existing structure sole plate 1 and rear pouring concrete pier 10 after aperture
New-old concrete interface 12 at carry out dabbing and set slurry, remove loose, the damaged and surface carbonation layer in original concrete,
And implant interface distributing bar 4, to guarantee effective connection of New-old concrete；According to design requirement at 3 top of circular steel tubular pole
It welds stake top and connects reinforcing bar 9；Reinforcing bar 6 at the top of bottom base plate reinforcing bar 5 and bottom plate is welded according to design requirement；Using micro-
Expansion early strength concrete pours filling in fact, and maintenance removes loading device after reaching intensity；
When brick fetal membrane is built, absolute altitude, position, size should closely conform to design requirement, support fixed reliable, brick fetal membrane piece
Tightly；
When pouring rear pouring concrete pier 10, continuous placing microdilatancy early strength concrete one-pass molding is answered, such as necessary interval,
Time of having a rest shortens as far as possible, and finishes upper layer concreting before lower-layer concrete initial set；When vibrating, vibrating head should be avoided and touch
Hit brick fetal membrane；Concreting is finished should start sprinkling maintenance when final set, specifically can be according to feelings such as slump, temperature
Condition is comprehensive to be determined.
Anti-floating strengthening reconstruction is carried out to existing structure sole plate using this method, it is convenient to draw materials, and low energy consumption, can be sufficiently sharp
Have the characteristics of certain bearing capacity with existing structure, without carrying out provisional construction safety strutting means, not only reduces
Construction cost also improves construction efficiency；It is few to existing structure damage, and the normal function without interrupting existing building makes
With；It is obvious to promote effect for structure basis bottom plate anti-floating bearing capacity after transformation, and is able to satisfy and is prolonged using safe, durability and antidetonation
Property require, it is applied widely.
Certainly, above content is only the preferred embodiment of the utility model, be should not be construed as limiting practical new to this
The scope of embodiments of type.The utility model is also not limited to the example above, and those skilled in the art are in this reality
With all the changes and improvements etc. made in novel essential scope, the patent covering scope of the utility model should all be belonged to
It is interior.
Claims (1)
1. augmenting resistance to plucking round steel pipe pilework on a kind of existing structure sole plate, comprising: existing structure sole plate, circle
Steel-pipe pile, piling hole is provided on existing structure sole plate, and circular steel tubular pole is pressed into existing structure sole plate by piling hole
Under foundation soil in, round steel pipe stake top portion welds stake top and connects eight reinforcing bars, existing structure sole plate and rear pouring concrete
Pier has Interface Construction reinforcing bar in the plantation of New-old concrete interface, welds bottom plate on the existing structure sole plate bottom muscle after truncation
Bottom reinforcing bar, reinforcing bar, rear pouring concrete pier at the top of welding bottom plate in the existing structure sole plate pressing lever after truncation
Brick fetal membrane is set with the foundation soil contact site of existing structure sole plate bottom, and is poured by microdilatancy early strength concrete
Seal stake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254428.9U CN209011153U (en) | 2018-08-06 | 2018-08-06 | Resistance to plucking round steel pipe pilework is augmented on existing structure sole plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821254428.9U CN209011153U (en) | 2018-08-06 | 2018-08-06 | Resistance to plucking round steel pipe pilework is augmented on existing structure sole plate |
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| Publication Number | Publication Date |
|---|---|
| CN209011153U true CN209011153U (en) | 2019-06-21 |
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ID=66830659
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821254428.9U Active CN209011153U (en) | 2018-08-06 | 2018-08-06 | Resistance to plucking round steel pipe pilework is augmented on existing structure sole plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945709A (en) * | 2020-07-29 | 2020-11-17 | 上海颐景建筑设计有限公司 | Static pressure steel pipe pile connecting structure and basement bottom plate post-pile-filling method |
-
2018
- 2018-08-06 CN CN201821254428.9U patent/CN209011153U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945709A (en) * | 2020-07-29 | 2020-11-17 | 上海颐景建筑设计有限公司 | Static pressure steel pipe pile connecting structure and basement bottom plate post-pile-filling method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20230129 Address after: 409-419, Floor 4, Martial Arts Museum Building, No. 168 Yugu Road, Xihu District, Hangzhou, Zhejiang, 310007 (singular) Patentee after: Jiedi Design Group Co.,Ltd. Address before: 266000 19th Floor, G1 Building, 288 Ningxia Road, Shinan District, Qingdao City, Shandong Province Patentee before: QINGDAO GAD BUILDING DESIGN Co.,Ltd. |