CN203383221U - Foundation pit support structure formed by armoured concrete and steel structure - Google Patents
Foundation pit support structure formed by armoured concrete and steel structure Download PDFInfo
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- CN203383221U CN203383221U CN201320454220.2U CN201320454220U CN203383221U CN 203383221 U CN203383221 U CN 203383221U CN 201320454220 U CN201320454220 U CN 201320454220U CN 203383221 U CN203383221 U CN 203383221U
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- foundation ditch
- foundation pit
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Abstract
The utility model provides a foundation pit support structure formed by armoured concrete and a steel structure. The foundation pit support structure is formed by a vertical enclosing wall and a plurality of layers of horizontal inner support structures. The foundation pit support structure integrates the advantages of a steel support and an armoured concrete support; compared with the support by only using the armoured concrete, the steel support has the advantages of capability of being recycled and reused, convenience for mounting and the like, and better controls the deformation of the foundation pit. The armoured concrete support is high in rigid, good in compressive performance, has large bearing force, is flexible in shape, and the two inner support structures are combined to use, so that the project period is shortened, the project cost is lowered, and the construction is safe and quick.
Description
Technical field
The utility model relates to technical field of civil engineering, particularly a kind of mixed base pit supporting construction with reinforced concrete support and steel support.
Background technology
It is large that reinforced concrete support has rigidity, is out of shape littlely, and the withstand voltage characteristics such as good, be widely used in pattern foundation pit supporting structure inner support engineering; Simultaneously reinforced concrete inner support also exists speed of application slow, and cost is high, and difficulty is removed in construction, the shortcoming such as can't reuse after dismounting.
It is fast that the steel support has speed of application, convenient and quick construction, and it is convenient to remove, and the characteristics such as recoverable, be widely used in the pattern foundation pit supporting structure inner support.But for the foundation ditch of plane irregularity, need to adopt the non-standard component construction, be difficult to reuse after causing removing, and under specific circumstances, need to carry construction machinery in support, so need a kind of combined type inner support of design to meet engineering demand.
The utility model content
Technical problem to be solved in the utility model is, overcomes the problem existed in existing pattern foundation pit supporting structure, and a kind of mixed base pit supporting construction with reinforced concrete support and steel support is provided.
In order to address the above problem, the technical solution of the utility model is such:
The foundation ditch braced structures that a kind of steel concrete mixes with steel work, pattern foundation pit supporting structure by vertical enclosure wall and multiple-layer horizontal to inner supporting structure form, it is characterized in that, on vertical cross-section, at least one deck is provided with reinforced concrete support in supporting, and steel supports or part supports for steel for the second layer and following being supported for; Described steel support comprise can be along its axis to foundation ditch the outside apply and prestressed support and prestressing force enclosed to purlin; Described prestressing force encloses purlin and support is linked to be to integral body, prestressing force enclose purlin and to the support stressed axis at grade; Described to below support, being provided with crossbeam, crossbeam is connected with stand column pile.
Described first floor also is provided with steel and supports in supporting.
It is the steel work fish belly sill that described prestressing force encloses purlin, comprises lower-cord beam, web member and the flexible muscle of the prestressing force that winds up; The web member lower end is fixed on lower-cord beam, and upper end contacts with the flexible muscle slidingtype of the prestressing force that winds up, and the two ends of the flexible muscle of prestressing force are separately fixed on the two ends of lower-cord beam, form a fish belly shape structure.
The foundation ditch braced structures that another kind of steel concrete mixes with steel work, pattern foundation pit supporting structure is comprised of the inner supporting structure of vertical enclosure wall and multiple-layer horizontal, on vertical cross-section, first floor is provided with reinforced concrete support in supporting, and steel supports or part supports for steel for the second layer and following being supported for; Described steel support comprise can be along its axis to foundation ditch the outside apply prestressedly to support, angle brace, and prestressing force encloses purlin; Described prestressing force encloses purlin and angle brace, support is linked to be to integral body, and prestressing force encloses purlin and angle brace, to the stressed axis of support at grade; Described to below support, being provided with crossbeam, crossbeam is connected with stand column pile.
Beneficial effect, the utility model is integrated, and steel supports and the advantage of reinforced concrete support, with independent reinforced concrete support, compare, the steel of lower floor supports the advantage such as have recyclable, recycling, easy for installation and construction period is short, controls better the distortion of foundation ditch.Upper strata adopts reinforced concrete support, and rigidity is high, and compressive property is good, has large bearing capacity, can be for parking construction machinery, and two kinds of inner supporting structures are combined with, and have reached the assurance construction safety, the purposes such as reduction of erection time, reduction construction costs.
The accompanying drawing explanation
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
The plane supporting structure schematic diagram that Fig. 1 is a kind of mixed base pit supporting construction with reinforced concrete support and steel support described in the utility model.
Fig. 2 is a kind of mixed base pit supporting construction generalized section with reinforced concrete support and steel support described in the utility model.
Fig. 3 is that prestressing force described in the utility model encloses the purlin structural representation.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of mixed base pit supporting construction supported with reinforced concrete support and steel, in the plane, be provided with on the inner support of same layer that reinforced concrete support 1, steel support 2, prestressing force encloses purlin 3.Foundation ditch is irregularly shaped in the present embodiment, and reinforced concrete support 1 is arranged on the irregularly shaped position of foundation ditch, and steel supports 2 for support or angle brace are arranged in foundation ditch, and steel supports 2 and encloses purlin 3 use that combines with prestressing force.
Referring to Fig. 2, on vertical cross-section, top first floor supporting and protection structure is that reinforced concrete support 1 or part are reinforced concrete support, and what first floor supporting and protection structure was following is steel support or reinforced concrete support or its combination.Adopt reinforced concrete support 1, rigidity is high, and compressive property is good, has large bearing capacity, and shape is flexible, can double as trestle, parks construction machinery.Steel supports 2 and has the advantages such as recyclable, recycling, easy for installation and construction period be short, controls better the distortion of foundation ditch.Two kinds of supporting forms combine, and performance advantage performance separately, make up defect separately, makes supporting and protection structure safety and stability more.
Referring to Fig. 1, described steel support 2 comprise can be along its axis to foundation ditch the outside apply prestressed to supportting 21, angle brace 22(can not arrange angle brace in some cases), and prestressing force encloses purlin 3; Described prestressing force encloses purlin 3 and angle brace 22, to supportting 21, reinforced concrete support 1 is linked to be integral body, reinforced concrete support 1, prestressing force encloses purlin 3 and angle brace 22, to supportting 21 stressed axis at grade.
To support 21 or angle brace 22 by the shaped steel more than two, formed side by side, on the shaped steel length direction, bolt connects, and is provided with horizontal and oblique fixed head on shaped steel width side by side, fixed head is bolted on shaped steel.Described to support 21 or angle brace 22 belows be provided with crossbeam, crossbeam is connected with stand column pile.
Referring to Fig. 3, prestressing force encloses purlin 3, is the fish belly sill structure, comprises lower-cord beam 31, web member 32, steel strand 33.Web member 32 arranges on lower-cord beam 31, and the two ends of steel strand 33 connect lower-cord beam 31 two ends, and the middle part of steel strand 33 is supported and is the fish belly shape by web member 32.Shaped steel and steel strand are assembled into to the purlin that encloses of a fish belly shape structure, steel strand are applied to prestressing force, to reach increase, this encloses the purlin span, increases and encloses purlin rigidity, controls the purpose of the horizontal distortion of foundation ditch.
Steel strand 33 are many, and steel strand 33 are comprised of many high-strength low loose reinforcing bars.The smooth contact between steel strand 33 and web member 32, many steel strand 33 hierarchal arrangement.Steel strand 33 both ends are provided with Special ground tackle.
The advantages such as the utility model is integrated, and steel supports and the advantage of reinforced concrete support, compares with independent reinforced concrete support, and that the steel support has is recyclable, recycling, easy for installation and construction period are short, control the distortion of foundation ditch better.Reinforced concrete support, rigidity is high, and compressive property is good, has large bearing capacity, and shape is flexible, can double as trestle, parks construction machinery, and two kinds of inner supporting structures are combined with, and have reached the assurance construction safety, the purposes such as reduction of erection time, reduction construction costs.
Above demonstration and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not subject to the restriction of above-mentioned example; that in above-mentioned example and manual, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. the foundation ditch braced structures that steel concrete mixes with steel work, pattern foundation pit supporting structure by vertical enclosure wall and multiple-layer horizontal to inner supporting structure form, it is characterized in that, on vertical cross-section, first floor is provided with reinforced concrete support in supporting, and steel supports or part supports for steel for the second layer and following being supported for; Described steel support comprise can be along its axis to foundation ditch the outside apply and prestressed support and prestressing force enclosed to purlin; Described prestressing force encloses purlin and support is linked to be to integral body, prestressing force enclose purlin and to the support stressed axis at grade; Described to below support, being provided with crossbeam, crossbeam is connected with stand column pile.
2. the foundation ditch braced structures that a kind of steel concrete according to claim 1 mixes with steel work, is characterized in that, described first floor also is provided with steel and supports in supporting.
3. the foundation ditch braced structures that a kind of steel concrete according to claim 1 mixes with steel work is characterized in that it is the steel work fish belly sill that described prestressing force encloses purlin, comprises lower-cord beam, web member and the flexible muscle of the prestressing force that winds up; The web member lower end is fixed on lower-cord beam, and upper end contacts with the flexible muscle slidingtype of the prestressing force that winds up, and the two ends of the flexible muscle of prestressing force are separately fixed on the two ends of lower-cord beam, form a fish belly shape structure.
4. the foundation ditch braced structures that steel concrete mixes with steel work, pattern foundation pit supporting structure by vertical enclosure wall and multiple-layer horizontal to inner supporting structure form, it is characterized in that, on vertical cross-section, first floor is provided with reinforced concrete support in supporting, and steel supports or part supports for steel for the second layer and following being supported for; Described steel support comprise can be along its axis to foundation ditch the outside apply prestressedly to support, angle brace, and prestressing force encloses purlin; Described prestressing force encloses purlin and angle brace, support is linked to be to integral body, and prestressing force encloses purlin and angle brace, to the stressed axis of support at grade; Described to below support, being provided with crossbeam, crossbeam is connected with stand column pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454220.2U CN203383221U (en) | 2013-07-29 | 2013-07-29 | Foundation pit support structure formed by armoured concrete and steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320454220.2U CN203383221U (en) | 2013-07-29 | 2013-07-29 | Foundation pit support structure formed by armoured concrete and steel structure |
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| Publication Number | Publication Date |
|---|---|
| CN203383221U true CN203383221U (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320454220.2U Expired - Lifetime CN203383221U (en) | 2013-07-29 | 2013-07-29 | Foundation pit support structure formed by armoured concrete and steel structure |
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| CN (1) | CN203383221U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220697A (en) * | 2015-11-06 | 2016-01-06 | 无锡市大筑岩土技术有限公司 | Shaped steel and prestressed reinforced concrete combining structure support and construction method |
| CN106968257A (en) * | 2017-03-09 | 2017-07-21 | 中国建筑第八工程局有限公司 | The concrete assembled shaped steel mixing support system of super-sized foundation pit and its construction method |
| CN107059879A (en) * | 2017-03-09 | 2017-08-18 | 中国建筑第八工程局有限公司 | Bracing members and steel enclose the adaptability connecting node and its construction method of purlin in foundation ditch |
| CN108222010A (en) * | 2018-03-20 | 2018-06-29 | 南京市测绘勘察研究院股份有限公司 | A kind of recyclable steel concrete combined type foundation pit trestle work structure of assembled and construction method |
| CN109403342A (en) * | 2018-10-31 | 2019-03-01 | 中建局集团建设发展有限公司 | A kind of foundation pit mixing support construction and its construction method |
| CN118187099A (en) * | 2024-05-17 | 2024-06-14 | 中交第一航务工程局有限公司 | Steel-concrete combined inner supporting structure for foundation pit |
-
2013
- 2013-07-29 CN CN201320454220.2U patent/CN203383221U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220697A (en) * | 2015-11-06 | 2016-01-06 | 无锡市大筑岩土技术有限公司 | Shaped steel and prestressed reinforced concrete combining structure support and construction method |
| CN106968257A (en) * | 2017-03-09 | 2017-07-21 | 中国建筑第八工程局有限公司 | The concrete assembled shaped steel mixing support system of super-sized foundation pit and its construction method |
| CN107059879A (en) * | 2017-03-09 | 2017-08-18 | 中国建筑第八工程局有限公司 | Bracing members and steel enclose the adaptability connecting node and its construction method of purlin in foundation ditch |
| CN107059879B (en) * | 2017-03-09 | 2023-10-13 | 中国建筑第八工程局有限公司 | Adaptive connection node of steel support and steel purlin in foundation pit and construction method thereof |
| CN108222010A (en) * | 2018-03-20 | 2018-06-29 | 南京市测绘勘察研究院股份有限公司 | A kind of recyclable steel concrete combined type foundation pit trestle work structure of assembled and construction method |
| CN109403342A (en) * | 2018-10-31 | 2019-03-01 | 中建局集团建设发展有限公司 | A kind of foundation pit mixing support construction and its construction method |
| CN118187099A (en) * | 2024-05-17 | 2024-06-14 | 中交第一航务工程局有限公司 | Steel-concrete combined inner supporting structure for foundation pit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |