CN204059362U - A kind of braced structures adopting resistance to compression PHC pile tube to do column - Google Patents
A kind of braced structures adopting resistance to compression PHC pile tube to do column Download PDFInfo
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- CN204059362U CN204059362U CN201420393417.4U CN201420393417U CN204059362U CN 204059362 U CN204059362 U CN 204059362U CN 201420393417 U CN201420393417 U CN 201420393417U CN 204059362 U CN204059362 U CN 204059362U
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- braced structures
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- seal plate
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Abstract
The utility model relates to a kind of braced structures adopting resistance to compression PHC pile tube to do column.Its objective is and provide a kind of resistance to compression PHC pile tube that adopts as the braced structures of column, after can effectively solving PHC tube pile construction, soil body excess pore water pressure cannot dissipate the difficult problem of the bored pile column pore-forming difficulty caused in time.A kind of braced structures adopting resistance to compression PHC pile tube to do column, comprise and be located at support in foundation ditch and column, described column is partly pressed in soil, described column adopts resistance to compression PHC pile tube, described support comprises the second support that superposed first supports and is positioned at bottom, described column top extend out to described first and supports top, bottom surface, and be provided with water-stopping structure in described column outside, described water-stopping structure is positioned at the below of floor level.
Description
Technical field
The utility model relates to base pit engineering technical field, specifically, relates to a kind of braced structures adopting resistance to compression PHC pile tube to do column.
Background technology
Base pit engineering is the earthwork for excavating engineering underground structure place, ensure foundation ditch and safety of surrounding environment and the general name of the engineering measure such as supporting, support, precipitation, reinforcing, shoveling and backfill taked.Wherein, foundation pit supporting construction by enclosure wall, water seal curtain, enclose the general name of the structural system that purlin, support and column etc. form.
Column resistance to compression adopts lattice-type steel column or H profile steel post, and stand column pile resistance to compression adopts castinplace pile, and H profile steel can be adopted when load is little to double as column and stand column pile.Stand column pile becomes hole perpendicularity should not be greater than 1/150, verticality of stand column should not be greater than 1/200, sediment thickness should not be greater than 100mm, column and stand column pile deviations should not be greater than 20mm, when adopting castinplace pile as stand column pile, the length that column anchors in stake should not be less than 2m, and stand column pile diameter should not be less than 650mm, and column construction quality requires higher.
Utility model content
The purpose of this utility model is to provide the braced structures of a kind of employing resistance to compression PHC pile tube (i.e. PHC piles) as column, after can effectively solving PHC tube pile construction, soil body excess pore water pressure cannot dissipate the difficult problem of the bored pile column pore-forming difficulty caused in time.
The purpose of this utility model is achieved in that
A kind of braced structures adopting resistance to compression PHC pile tube to do column, comprise and be located at support in foundation ditch and column, described column is partly pressed in soil, described column adopts resistance to compression PHC pile tube, described support at least comprises the second support that superposed first supports and is positioned at bottom, described column top extend out to described first and supports top, bottom surface, and be provided with water-stopping structure in described column outside, described water-stopping structure is positioned at the below of floor level.
Described water-stopping structure is double-deck water-stopping structure.
Wherein, described double-deck water-stopping structure comprises one circular seal plate, and the top of described circular seal plate is provided with square seal plate together, and the apical margin absolute altitude of described square seal plate is positioned at below plate top surface.Certainly, the seal plate of other shape also can be adopted according to construction needs or easy construction.
Wherein, tamped between described circular seal plate and described column by cementitious materials, tamped between described square seal plate and described column by cementitious materials, described cementitious materials can be epoxy resin or other similar material.
Further, the root edge place of described square seal plate be bottom slab concreting complete after carry out cutting stake index line when column cuts.
Further, after described column cuts stake, be filled with microdilatancy pea gravel concreten between the root edge of described square seal plate and apical margin, the upper edge of described seal plate is welded by cover plate full weld, is filled with microdilatancy pea gravel concreten between described cover plate and plate top surface.
Wherein, the end plate bevel for welding height of described resistance to compression PHC pile tube is: H0 >=4.4mm, width a >=12mm; The allowable variation that the stake top mark of described resistance to compression PHC pile tube is high is ± 50mm.
Preferably, described column top is positioned at 100mm place on described first support bottom surface.
Longitudinal reinforcement welding in described support and collar tie beam, joint is located at from fulcrum L/3 place, single-sided welding length 10d, and welding point staggers mutually, and in same section, longitudinal reinforcement joint is not more than 50%.
The utility model is owing to have employed technique scheme, there is compared with conventional art following beneficial effect: a kind of braced structures adopting resistance to compression PHC pile tube to do column of the utility model is owing to adopting resistance to compression PHC pile tube as column, not only eliminate castinplace pile column, and ensure that the quality of column, efficiently solve due to after column construction, soil body excess pore water pressure cannot dissipate the difficult problem of the bored pile column pore-forming difficulty caused in time; Adopt resistance to compression PHC pile tube to do the braced structures effect of column significantly, promote the sustainable development of underground space development.
Accompanying drawing explanation
By following embodiment of the present utility model and description taken together with the accompanying drawings, other advantage of the present utility model and feature are shown, this embodiment provides by way of example, but is not limited to this, wherein:
Fig. 1 is that a kind of resistance to compression PHC pile tube that adopts of the utility model makees syndeton schematic diagram between a preferred embodiment central post of the braced structures of column and water-stopping structure;
Fig. 2 is the longitudinal sectional view of structure shown in Fig. 1;
Fig. 3 is the sectional view in I-I direction in Fig. 2;
Fig. 4 is the sectional view in II-II direction in Fig. 2;
Fig. 5 be the utility model a kind of adopt resistance to compression PHC pile tube to do the braced structures of column a preferred embodiment central post and support between syndeton schematic diagram;
Fig. 6 is the sectional view in A-A direction in Fig. 5;
Fig. 7 is the sectional view in B-B direction in Fig. 5.
Detailed description of the invention
As shown in Figure 1, shown in Figure 5, a kind of braced structures adopting resistance to compression PHC pile tube to do column, comprise and be located at support in foundation ditch and column, column adopts resistance to compression PHC pile tube 1, supports and at least comprises twice, in the present embodiment, support the second comprising superposed first support 21 and be positioned at bottom and support 22, the top of resistance to compression PHC pile tube 1 extend out to first and supports 21 top, bottom surface 100mm, and be provided with water-stopping structure 3 in the outside of resistance to compression PHC pile tube 1, water-stopping structure 3 is positioned at the below of floor level.
Wherein, the end plate bevel for welding height of resistance to compression PHC pile tube 1 is: the allowable variation that the stake top mark of H0 >=4.4mm, width a >=12mm, resistance to compression PHC pile tube is high is ± 50mm.
Wherein, support and longitudinal reinforcement welding in collar tie beam, joint is located at from fulcrum L/3 place, single-sided welding length 10d, and welding point staggers mutually, and in same section, longitudinal reinforcement joint is not more than 50%.
Shown in composition graphs 1-4, water-stopping structure 3 is for comprising one circular seal plate 32, and the top of circular seal plate 32 is provided with square seal plate 31 together, and the apical margin absolute altitude of square seal plate 31 is positioned at 300mm under plate top surface.Certainly, the seal plate of other shape also can be adopted according to construction needs or easy construction.In the present embodiment, the gap between the pile body of circular seal plate 32 and square seal plate 31 and resistance to compression PHC pile tube 1 is tamped by epoxy resin 310.Wherein, the root edge place of square seal plate 31 be bottom slab concreting complete after carry out cutting stake index line when column cuts.After column cuts stake, be filled with microdilatancy pea gravel concreten between the root edge of square seal plate 31 and apical margin, the upper edge of seal plate is welded by cover plate full weld, is filled with microdilatancy pea gravel concreten between cover plate and plate top surface.
Simultaneously composition graphs 5-7, is actually used in Specific construction step in foundation pit construction process so that the concrete structure of the present embodiment braced structures to be described below by way of the present embodiment:
(1) be pressed into as column in soil using the resistance to compression PHC pile tube 1 of certain length, a stake top mark high position for resistance to compression PHC pile tube 1 supports 100mm on 21 bottom surfaces in first.
(2) after excavating the top layer earthwork to the stake top mark height of resistance to compression PHC pile tube 1, the stake core of resistance to compression PHC pile tube 1 is cleaned up, place afterwards and fill out core reinforcing bar 4, then build wadding weft variation 5, fill out 3m place under the resistance to compression PHC pipe pile joint of first, core degree of depth bottom surface to Foundation Pit bottom.
(3) be close to the outer wall of resistance to compression PHC pile tube 1, be pressed into four angle steel 6, the resistance to compression of angle steel 6 length is 2m, and elevation of top is positioned at first and supports 50mm under 21 end faces, then angle steel 6 full weld adopting channel-section steel 7 to be pressed into connects, and exceeds angle steel 6 certain length.
(4) colligation and concreting that first supports 21 is carried out again.
(5) continue to be excavated to after second supports 22 bottom surfaces, angle steel 6 spreading be pressed into is supported 22 to second, and its elevation of bottom is that second supports 50mm on 22 bottom surfaces, adopts material such as band iron 8 grade simultaneously, is connected by four angle steel 6 full welds at a certain distance.
(6) adopt material such as channel-section steel 7 grade to be connected by angle steel 6 full weld be pressed into, and exceed angle steel 6 certain length.
(7) excavation of foundation pit on earth after, the circular seal plate 32 of construction base plate, square seal plate 31 of then constructing, epoxy resin 310 is filled in the gap between seal plate and resistance to compression PHC pile tube 1, the top mark of square seal plate 31 high-order under base plate 9 end face 300mm.
(8) base plate is built for 9 two times, reserved position base plate 9 top layer reinforcing bar, need on resistance to compression PHC pile tube 1 surrounding seal plate end face pouring concrete after indwelling, vertical layered line-spacing resistance to compression PHC pile tube 1 pile lining should not be less than 500mm.
(9) after supporting removal, resistance to compression PHC pile tube 1 is cut to and puts down with square seal plate root edge, to be levellingly connected with square seal plate full weld with steel plate afterwards.
(10) connect reserved position base plate top layer reinforcing bar, concreting, construction terminates.
Claims (10)
1. the braced structures adopting resistance to compression PHC pile tube to do column, comprise and be located at support in foundation ditch and column, described column is partly pressed in soil, it is characterized in that: described column adopts resistance to compression PHC pile tube, described support at least comprises the second support that superposed first supports and is positioned at bottom, described column top extend out to described first and supports top, bottom surface, and be provided with water-stopping structure in described column outside, described water-stopping structure is positioned at the below of floor level.
2. braced structures as claimed in claim 1, is characterized in that: described water-stopping structure is double-deck water-stopping structure.
3. braced structures as claimed in claim 2, is characterized in that: described double-deck water-stopping structure comprises one circular seal plate, and the top of described circular seal plate is provided with square seal plate together, and the apical margin absolute altitude of described square seal plate is positioned at below plate top surface.
4. braced structures as claimed in claim 3, be is characterized in that: tamped by cementitious materials between described circular seal plate and described column, is tamped between described square seal plate and described column by cementitious materials.
5. braced structures as claimed in claim 3, is characterized in that: the root edge place of described square seal plate be bottom slab concreting complete after carry out cutting stake index line when column cuts.
6. braced structures as claimed in claim 5, it is characterized in that: after described column cuts stake, microdilatancy pea gravel concreten is filled with between the root edge of described square seal plate and apical margin, the upper edge of described seal plate is welded by cover plate full weld, is filled with microdilatancy pea gravel concreten between described cover plate and plate top surface.
7. braced structures as claimed in claim 1, is characterized in that: the end plate bevel for welding height of described resistance to compression PHC pile tube is: H0 >=4.4mm, width a >=12mm.
8. braced structures as claimed in claim 1, is characterized in that: the allowable variation that the stake top mark of described resistance to compression PHC pile tube is high is ± 50mm.
9. braced structures as claimed in claim 1, is characterized in that: described column top is positioned at described first and supports 100mm place on bottom surface.
10. braced structures as claimed in claim 1, is characterized in that: longitudinal reinforcement welding in described support and collar tie beam, joint is located at from fulcrum L/3 place, single-sided welding length 10d, and welding point staggers mutually, and in same section, longitudinal reinforcement joint is not more than 50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393417.4U CN204059362U (en) | 2014-07-16 | 2014-07-16 | A kind of braced structures adopting resistance to compression PHC pile tube to do column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420393417.4U CN204059362U (en) | 2014-07-16 | 2014-07-16 | A kind of braced structures adopting resistance to compression PHC pile tube to do column |
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| CN204059362U true CN204059362U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420393417.4U Expired - Fee Related CN204059362U (en) | 2014-07-16 | 2014-07-16 | A kind of braced structures adopting resistance to compression PHC pile tube to do column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104119A (en) * | 2017-09-22 | 2018-06-01 | 上海市政工程设计研究总院（集团）有限公司 | A kind of PHC pile piles make the construction method of support system lattice column |
-
2014
- 2014-07-16 CN CN201420393417.4U patent/CN204059362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104119A (en) * | 2017-09-22 | 2018-06-01 | 上海市政工程设计研究总院（集团）有限公司 | A kind of PHC pile piles make the construction method of support system lattice column |
| CN108104119B (en) * | 2017-09-22 | 2024-02-09 | 上海市政工程设计研究总院（集团）有限公司 | Construction method for lattice column with PHC pipe pile as supporting system |
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| Date | Code | Title | Description |
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| 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: 20141231 Termination date: 20190716 |
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| CF01 | Termination of patent right due to non-payment of annual fee |