CN105714830A - Connecting plate for abnormal-shape double-row piles - Google Patents
Connecting plate for abnormal-shape double-row piles Download PDFInfo
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- CN105714830A CN105714830A CN201610075038.4A CN201610075038A CN105714830A CN 105714830 A CN105714830 A CN 105714830A CN 201610075038 A CN201610075038 A CN 201610075038A CN 105714830 A CN105714830 A CN 105714830A
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- connecting plate
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- shaped steel
- heel row
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a connecting plate for abnormal-shape double-row piles. The connecting plate comprises a front row pile crown beam, a back row wall crown beam, a connecting plate body and structural steel arranged in a back row wall; the back row wall crown beam is internally provided with a plurality of first longitudinal bars, ring bars, large stirrups and small stirrups, the structural steel is sleeved with the ring bars, the large stirrups are bound on parts, located outside the scope of the width of wing edges of the structural steel, of the first longitudinal bars, and the small stirrups are bound on parts, located inside the scope of the width of the wing edges of the structural steel, of the first longitudinal bars; and the connecting plate body is internally provided with a plurality of second longitudinal bars, small U-shaped main bars and large U-shaped main bars, the ring bars are sleeved with the closed ends of the small U-shaped main bars in a pulling manner, and the closed ends of the large U-shaped main bars are arranged in the back row wall crown beam. According to the connecting plate for the abnormal-shape double-row piles, the problem that the main bars of the connecting plate body cannot penetrate the back row wall crown beam due to the fact that the structural steel penetrates the connecting plate body can be solved; and meanwhile, the problem that the anti-shearing bearing force and the anti-bending bearing force of the crossing position of the connecting plate body and the back row wall crown beam are seriously weakened after the structural steel penetrates the connecting plate body can be solved.
Description
Technical field
The invention belongs to pattern foundation pit supporting structure and side slope protection field, particularly relate to a kind of connecting plate for special-shaped double-row pile.
Background technology
Along with the fast development of Process of Urbanization Construction and carrying forward vigorously of cities and towns My Perspective On The Co-building, the underground installation construction such as underground parking, underground commerce square, underground railway is required for carrying out pattern foundation pit supporting structure.Urban architecture foundation ditch often tightly leads Urban Buried Pipeline Network facility (such as foggara, gas pipeline, communication cable etc.) and existing building, and level of ground water is higher.Due to the restriction of neighboring buildings environment, often cannot adopt surmount the soil nailing of property line, anchor pole carries out pattern foundation pit supporting structure, and cantilever pile is limited due to stiffness by itself, the supporting degree of depth is shallower, when using in conjunction with inner support, substantial amounts of inner support not only affects operation in earthwork construction and hole, is also difficult to remove.And owing to level of ground water is higher, in addition it is also necessary to water-stop curtain wall of individually constructing, accordingly, there exist long in time limit, the shortcoming that cost is high.
And traditional double-row pile keeps at a certain distance away due to forward and backward campshed, and be attached by rigid frame mode, form the cantilevered portal frame structure with stronger rigidity, popularization and application gradually in the urban architecture foundation ditch of complex building environment, when needs carry out foundation ditch sealing, often between forward and backward campshed or on rear side of rear campshed, construction water-stop curtain wall carries out foundation ditch sealing.Although traditional double campshed solves the support technology problem of city foundation ditch under complex building environment, and solve foundation ditch sealing problem in conjunction with water-stop curtain wall, but on there is two significant drawbacks: the rear campshed stress of (1) double-row pile is generally less than front campshed many, and rear campshed still adopts deposited reinforced concrete pile to be greatly increased construction costs；(2) Double-row Piles Support foundation ditch adopts needs individually construction during waterproof of man wall sealing, and normally only considers its effect of intercepting water, and is left out its gear soil effect, not only wastes material, increases cost, also extend the duration.
And adopt special-shaped double-row pile, namely front-seat employing bored concrete pile forms front campshed, heel row adopts Soil-cement Wall interpolation shaped steel to form heel row wall, front campshed and heel row wall adopt rigit-frame beam or connecting plate to be attached the Novel double bank pilework formed, not only optimize acting on when native of heel row wall, also also serve as water-stop curtain wall, it is achieved gear soil unites two into one with water stopping function, both construction costs had been saved, again the reduction of erection time.
Owing to the special-shaped front campshed of double-row pile and the connected mode of heel row wall directly affect its supporting effect, therefore, the connected mode of front campshed and heel row wall becomes the important component part of special-shaped Retaining Structure with Double-row Piles.
Summary of the invention
In order to reinforcing bar passes through a difficult problem what heel row inserted shaped steel place within the walls in the problem that is rigidly connected of campshed and heel row wall and connecting plate before solving special-shaped double-row pile, the invention provides a kind of connecting plate for special-shaped double-row pile.Adopt this connecting plate, both can avoid causing that the main muscle of connecting plate cannot pass through a heel row wall hat beam difficult problem owing to shaped steel runs through connecting plate, and can solve after shaped steel runs through connecting plate, to cause the problem that the shear-carrying capacity of connecting plate and heel row wall Guan Liang intersection and anti-bending bearing capacity seriously undermine simultaneously.
In order to solve above-mentioned technical problem, adopted the technical scheme that:
A kind of connecting plate for special-shaped double-row pile, including front-seat dowel crown beam, heel row wall Guan Liang, for connecting the connecting plate of front campshed and heel row wall and being built in heel row and be positioned at the shaped steel of described heel row wall Guan Liang and described connecting plate junction within the walls, the multiple first vertical muscle it is provided with in described heel row wall hat beam, ring muscle, big stirrup and little stirrup, described first vertical muscle is preced with in beam along the length direction colligation heel row wall in described shaped steel both sides respectively of described heel row wall Guan Liang, described ring muscle is set in outside described shaped steel, described big stirrup colligation is positioned in the extraneous part of flange width of described shaped steel at the described first vertical muscle, described little stirrup colligation is positioned in the part of flange width scope of described shaped steel at the described first vertical muscle, described little stirrup is pulled on described ring muscle near the side of described shaped steel set；The multiple second vertical muscle, little U-shaped main muscle and the main muscle of large U type it is provided with in described connecting plate, described little U-shaped main muscle is arranged within the scope of the flange width of described shaped steel, the main muscle of described large U type is arranged on outside the flange width scope of described shaped steel, the opening of described little U-shaped main muscle is anchored in described front-seat dowel crown beam, the closed end set of described little U-shaped main muscle is pulled on described ring muscle, the opening of the main muscle of described large U type is anchored in described front-seat dowel crown beam, and the closed end of the main muscle of described large U type is arranged in described heel row wall hat beam.
Described first vertical muscle is distributed in the both sides of described shaped steel, the the described first vertical muscle being positioned at described shaped steel the same side is respectively arranged with multiple, this multiple described first vertical muscle is divided into multiple row and arranges along the width of described heel row wall Guan Liang, and described in each column, the first vertical muscle is divided into multilamellar to be preced with the setting of depth of beam direction along described heel row wall.
The height of described little stirrup is the maximum crust distance described in same column between the first vertical muscle, and the width of described little stirrup is the maximum crust distance described in homonymy between the first vertical muscle.
Each ring muscle described is arranged along the short transverse of described shaped steel.
The 3rd vertical muscle it is banded with in described front-seat dowel crown beam.
Due to the application of above-mentioned technology, successfully solve two hang-ups:
(1) a connecting plate shear-carrying capacity difficult problem is solved: owing to shaped steel penetrates the coupling part of connecting plate and heel row wall Guan Liang, the connecting plate of the shaped steel both sides shear resistance at this place is significantly weakened, the both sides of the shaped steel by being preced with in beam at heel row wall arrange little stirrup, solve the connecting plate shear-carrying capacity problem at this place, big stirrup is set by being preced with inside beam at heel row wall, enhances the connecting plate shearing resistance bearing strength at this place.
(2) a connecting plate anti-bending bearing capacity difficult problem is solved: owing to shaped steel penetrates the coupling part of connecting plate and heel row wall Guan Liang, main muscle in connecting plate is inevitably disconnected at shaped steel place, largely reducing the connecting plate anti-bending bearing capacity at this place, by arranging little U-shaped main muscle and little stirrup, and adopt ring muscle to carry out set to draw, ensure that the seriality of stress, solve a connecting plate anti-bending bearing capacity difficult problem at this place, the large U type through connecting plate of main muscle is set simultaneously, also enhances the bending bearing capacity of connecting plate.
Accompanying drawing explanation
Fig. 1 is the floor map of a kind of connecting plate for special-shaped double-row pile of the present invention；
Fig. 2 is the cross-sectional view part of shaped steel (heel row be equipped with within the walls) of a kind of connecting plate for special-shaped double-row pile of the present invention；
Fig. 3 is the cross-sectional view (heel row is within the walls without the part of shaped steel) of a kind of connecting plate for special-shaped double-row pile of the present invention.
In figure:
The front-seat vertical muscle 11 of dowel crown beam 1 the 3rd
The vertical muscle 21 and 21 ' of heel row wall hat beam 2 first
The big stirrup 23 of ring muscle 22
Campshed 3 before little stirrup 24
Heel row wall 4 connecting plate 5
The second vertical little U-shaped main muscle 52 of muscle 51
Large U type main muscle 53 shaped steel 6
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this case is described in further detail.
A kind of connecting plate for special-shaped double-row pile, such as Fig. 1-Fig. 3, it is preced with beam 2 and for connecting the connecting plate 5 of front campshed 3 and heel row wall 4 including front-seat dowel crown beam 1, heel row wall, front-seat dowel crown beam 1 is arranged at the tip position of front campshed 3, heel row wall hat beam 2 is arranged at the tip position of heel row wall 4, it is connected to connecting plate 5, front campshed 3 and heel row wall 4 between front-seat dowel crown beam 1 and heel row wall hat beam 2 and forms double-row pile by connecting plate 5.
Being banded with the 3rd vertical muscle 11 in front-seat dowel crown beam 1, heel row wall 4 is built-in with shaped steel 6, and the height of shaped steel 6 exceeds the overhead height 30-50cm of heel row wall hat beam 2, and shaped steel 6 penetrates the coupling part of connecting plate 5 and heel row wall hat beam 2.
Many first vertical muscle 21 and 21 ' it are provided with in heel row wall hat beam 2, ring muscle 22, big stirrup 23 and little stirrup 24, the radical of the first vertical muscle 21 and 21 ' is calculated by requirement of engineering and obtains, in the present embodiment, first vertical muscle 21 and 21 ' is each colligation of shaped steel 6 lateral symmetry 7, 14 altogether, the width that the first vertical muscle 21 and 21 ' being positioned at shaped steel 6 the same side is preced with beam 2 along heel row wall is divided into two row settings, the height being preced with beam 2 along heel row wall away from the string of shaped steel 6 arranges four layer of first vertical muscle 21, the height being preced with beam 2 along heel row wall near the string of shaped steel 6 arranges three layers first and indulges muscle 21 ', the each row in shaped steel 6 both sides first indulge the ground floor of muscle, the second layer and last layer are separately positioned in same level.
Ring muscle 22 is set in outside each shaped steel 6 along the short transverse of shaped steel 6 by default spacing, in the present embodiment, ring muscle 22 has four, and the ring muscle 22 of the top and the spacing of the ring muscle 22 of bottom are not more than the first vertical muscle of the superiors and the distance of the undermost first vertical muscle.
Big stirrup 23 is arranged between adjacent shaped steel 6, the extraneous part of flange width of the corresponding shaped steel 6 of muscle 21 and 21 ' is indulged for colligation first, in the present embodiment, the centre of adjacent shaped steel 6 is provided with a big stirrup 23, little stirrup 24 is arranged on the both sides within the scope of the flange width of shaped steel 6, the part within the scope of the flange width of the corresponding shaped steel 6 of muscle 21 and 21 ' is indulged for colligation first, in the present embodiment, the both sides, the edge of a wing of each shaped steel 6 are respectively arranged with two little stirrups 24, little stirrup 24 near shaped steel 6 side overlap nearby and be pulled on ring muscle 22, the height of little stirrup 24 is that the be locked in a tie for first Zong Jinjian the superiors and orlop first indulges the crust distance of muscle, the width of little stirrup 24 is that homonymy first indulges the muscle leftmost side and the crust distance of muscle is indulged in the rightmost side first.
Many second vertical muscle 51 it are equipped with in connecting plate 5, little U-shaped main muscle 52 and the main muscle 53 of large U type, in the part of the second vertical muscle 51 connecting plate 5 between front-seat dowel crown beam 1 and heel row wall hat beam 2, point upper and lower two-layer is arranged, little U-shaped main muscle is disposed in the connecting plate 5 within the scope of corresponding shaped steel 6 flange width, the main muscle of large U type is disposed in the corresponding extraneous connecting plate 5 of shaped steel 6 flange width, in the present embodiment, the position of the connecting plate 5 between corresponding adjacent shaped steel 6 is provided with 2 main muscle 53 of large U type, the position of the connecting plate 5 within the scope of corresponding shaped steel 6 flange width is provided with 2 little U-shaped main muscle 52, the opening of little U-shaped main muscle 52 is anchored in front-seat dowel crown beam 1, the closed end of little U-shaped main muscle 52 overlaps nearby and is pulled on ring muscle 22, the opening of the main muscle 53 of large U type is anchored in front-seat dowel crown beam 1, the closed end of the main muscle 53 of large U type is arranged in heel row wall hat beam 2, and together with the first vertical muscle 21 and 21 ' colligation.
Cannot pass through, at shaped steel 6 place of heel row wall, the problem causing that connecting plate shear-carrying capacity and anti-bending bearing capacity are substantially reduced in order to solve the main muscle of connecting plate 5 in special-shaped double-row pile, take following measures:
(1), in the hat of the heel row wall within the scope of shaped steel 6 flange width beam 2, the first vertical muscle 21 and 21 ' of little stirrup 24 colligation shaped steel 6 both sides respectively is set；In heel row wall hat beam 2 between adjacent shaped steel 6, big stirrup 23 colligation first is set and indulges muscle 21 and 21 '.
(2) connecting plate 5 within the scope of shaped steel 6 flange width is arranged little U-shaped main muscle 52, the opening of little U-shaped main muscle 52 anchors in front-seat dowel crown beam 1, the little U-shaped closed end of main muscle 52 and the edge of a wing of shaped steel 6 keep about 5-10cm distance, and adopt ring muscle 22 that the little stirrup 24 of little U-shaped main muscle 52 and homonymy and the little stirrup 24 of opposite side are carried out set and drawn；Arranging the main muscle 53 of large U type in connecting plate 5 between adjacent shaped steel 6, the opening of the main muscle 53 of large U type is anchored in front-seat dowel crown beam 1, and the closed end of the main muscle 53 of large U type is arranged in heel row wall hat beam 2, and together with the first vertical muscle 21 and 21 ' colligation.
Concrete construction method is: be first inserted in ring muscle 22 by little U-shaped main muscle 52 and little stirrup 24, again ring muscle 22 is enclosed within outside shaped steel 6, and the position of little U-shaped main muscle 52 and little stirrup 24 is arranged by above-mentioned, the main muscle of large U type 53 and big stirrup 23 is arranged between shaped steel 6, penetrate the first vertical vertical muscle of muscle 21 and 21 ', second 51 and the 3rd vertical muscle 11 again, carry out colligation, last one-piece casting concrete after adjusting each stirrup and main muscle position, namely complete the construction of the connecting plate of this abnormal shape double-row pile.
After adopting said structure, (1) a connecting plate shear-carrying capacity difficult problem is solved: owing to shaped steel penetrates the coupling part of connecting plate and heel row wall Guan Liang, the connecting plate of the shaped steel both sides shear resistance at this place is significantly weakened, the both sides of the shaped steel by being preced with in beam at heel row wall arrange little stirrup, solve the connecting plate shear-carrying capacity problem at this place, big stirrup is set by being preced with inside beam at heel row wall, enhances the connecting plate shearing resistance bearing strength at this place.
(2) a connecting plate anti-bending bearing capacity difficult problem is solved: owing to shaped steel penetrates the coupling part of connecting plate and heel row wall Guan Liang, main muscle in connecting plate is inevitably disconnected at shaped steel place, largely reducing the connecting plate anti-bending bearing capacity at this place, by arranging little U-shaped main muscle and little stirrup, and adopt ring muscle to carry out set to draw, ensure that the seriality of stress, solve a connecting plate anti-bending bearing capacity difficult problem at this place, the large U type through connecting plate of main muscle is set simultaneously, also enhances the bending bearing capacity of connecting plate.
A kind of the scheme above embodiment of the present invention provided is discussed in detail, and for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications.In sum, this specification content should not be construed as limitation of the present invention, and all any changes made according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (5)
1. the connecting plate for special-shaped double-row pile, including front-seat dowel crown beam, heel row wall Guan Liang, for connecting the connecting plate of front campshed and heel row wall and being built in heel row and be positioned at the shaped steel of described heel row wall Guan Liang and described connecting plate junction within the walls, it is characterized in that: in described heel row wall hat beam, be provided with the multiple first vertical muscle, ring muscle, big stirrup and little stirrup, described first vertical muscle is preced with in beam along the length direction colligation heel row wall in described shaped steel both sides respectively of described heel row wall Guan Liang, described ring muscle is set in outside described shaped steel, described big stirrup colligation is positioned in the extraneous part of flange width of described shaped steel at the described first vertical muscle, described little stirrup colligation is positioned in the part of flange width scope of described shaped steel at the described first vertical muscle, described little stirrup is pulled on described ring muscle near the side of described shaped steel set；The multiple second vertical muscle, little U-shaped main muscle and the main muscle of large U type it is provided with in described connecting plate, described little U-shaped main muscle is arranged within the scope of the flange width of described shaped steel, the main muscle of described large U type is arranged on outside the flange width scope of described shaped steel, the opening of described little U-shaped main muscle is anchored in described front-seat dowel crown beam, the closed end set of described little U-shaped main muscle is pulled on described ring muscle, the opening of the main muscle of described large U type is anchored in described front-seat dowel crown beam, and the closed end of the main muscle of described large U type is arranged in described heel row wall hat beam.
2. a kind of connecting plate for special-shaped double-row pile according to claim 1, it is characterized in that: the described first vertical muscle is distributed in the both sides of described shaped steel, the the described first vertical muscle being positioned at described shaped steel the same side is respectively arranged with multiple, this multiple described first vertical muscle is divided into multiple row and arranges along the width of described heel row wall Guan Liang, and described in each column, the first vertical muscle is divided into multilamellar to be preced with the setting of depth of beam direction along described heel row wall.
3. a kind of connecting plate for special-shaped double-row pile according to claim 2, it is characterized in that: the height of described little stirrup is the maximum crust distance described in same column between the first vertical muscle, the width of described little stirrup is the maximum crust distance described in homonymy between the first vertical muscle.
4. a kind of connecting plate for special-shaped double-row pile according to claim 1, it is characterised in that: each ring muscle described is arranged along the short transverse of described shaped steel.
5. a kind of connecting plate for special-shaped double-row pile according to claim 1, it is characterised in that: it is banded with the 3rd vertical muscle in described front-seat dowel crown beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075038.4A CN105714830B (en) | 2016-02-03 | 2016-02-03 | It is a kind of to be used for the connecting plate of special-shaped double-row pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075038.4A CN105714830B (en) | 2016-02-03 | 2016-02-03 | It is a kind of to be used for the connecting plate of special-shaped double-row pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105714830A true CN105714830A (en) | 2016-06-29 |
| CN105714830B CN105714830B (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610075038.4A Expired - Fee Related CN105714830B (en) | 2016-02-03 | 2016-02-03 | It is a kind of to be used for the connecting plate of special-shaped double-row pile |
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| CN (1) | CN105714830B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847191A (en) * | 2019-11-25 | 2020-02-28 | 华侨大学 | Plate type connecting structure for double-row supporting of front wall and rear pile and construction method of plate type connecting structure |
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|---|---|---|---|---|
| JPH04185816A (en) * | 1990-11-20 | 1992-07-02 | Nitto Kogyo Kk | Construction of beam in underground wall |
| CN2861284Y (en) * | 2005-12-29 | 2007-01-24 | 上海市第二建筑有限公司 | Structure frame beam and gang-piles round protection connection node in inverse engineering |
| CN103306289A (en) * | 2013-06-28 | 2013-09-18 | 中国三冶集团有限公司第一建筑工程公司 | Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof |
| CN103321231A (en) * | 2013-06-10 | 2013-09-25 | 叶长青 | Construction method of foundation pit support |
| CN103758134A (en) * | 2014-01-24 | 2014-04-30 | 中国建筑股份有限公司 | Combined double-row pile supporting system and construction method thereof |
| CN203905018U (en) * | 2014-05-26 | 2014-10-29 | 中国建筑股份有限公司 | Supporting and protecting system with combined double-row piles in combination with oblique anchors |
| CN205421275U (en) * | 2016-02-03 | 2016-08-03 | 华侨大学 | A connecting plate for heterotypic double row pile |
-
2016
- 2016-02-03 CN CN201610075038.4A patent/CN105714830B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04185816A (en) * | 1990-11-20 | 1992-07-02 | Nitto Kogyo Kk | Construction of beam in underground wall |
| CN2861284Y (en) * | 2005-12-29 | 2007-01-24 | 上海市第二建筑有限公司 | Structure frame beam and gang-piles round protection connection node in inverse engineering |
| CN103321231A (en) * | 2013-06-10 | 2013-09-25 | 叶长青 | Construction method of foundation pit support |
| CN103306289A (en) * | 2013-06-28 | 2013-09-18 | 中国三冶集团有限公司第一建筑工程公司 | Foundation pit piled anchor dado concrete anchor cable top beam structure and construction method thereof |
| CN103758134A (en) * | 2014-01-24 | 2014-04-30 | 中国建筑股份有限公司 | Combined double-row pile supporting system and construction method thereof |
| CN203905018U (en) * | 2014-05-26 | 2014-10-29 | 中国建筑股份有限公司 | Supporting and protecting system with combined double-row piles in combination with oblique anchors |
| CN205421275U (en) * | 2016-02-03 | 2016-08-03 | 华侨大学 | A connecting plate for heterotypic double row pile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847191A (en) * | 2019-11-25 | 2020-02-28 | 华侨大学 | Plate type connecting structure for double-row supporting of front wall and rear pile and construction method of plate type connecting structure |
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| CN105714830B (en) | 2017-09-26 |
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