CN201176594Y - Reinforced concrete support ring beam for deep-foundation pit - Google Patents
Reinforced concrete support ring beam for deep-foundation pit Download PDFInfo
- Publication number
- CN201176594Y CN201176594Y CNU2008200836884U CN200820083688U CN201176594Y CN 201176594 Y CN201176594 Y CN 201176594Y CN U2008200836884 U CNU2008200836884 U CN U2008200836884U CN 200820083688 U CN200820083688 U CN 200820083688U CN 201176594 Y CN201176594 Y CN 201176594Y
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- linear beam
- foundation pit
- fender post
- deep foundation
- reinforced concrete
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Abstract
The utility model relates to a deep foundation pit reinforced concrete support ring beam with low cost and convenient construction, which is provided with a straight beam (1) which is interlinked on a deep foundation pit guard post (7), the outer side of the straight beam is provided with support projections (5) which are interphase and are integrated with the straight beam, and the outer side of the straight beam is provided with a supported beam (2) which is vertical to the straight beam and is integrated with the straight beam between adjacent support projections, and reeve pipes are buried in the support projections. A steel strand (3) is stretched between the adjacent support projections, and the steel strand is pressed on the outer end surface of the supported beam, both end portions of the steel strand are threaded through the reeve pipes in the support projections, and is stretched with preload stress and is anchored on one sides of the support projections. The deep foundation pit reinforced concrete support ring beam is suitable for being used as deep foundation pit support structures.
Description
Technical field
The utility model relates to the supporting and protection structure part of building underground construction deep foundation ditch.
Background technology
The supporting of underground building deep foundation ditch needs embedding fender post around foundation ditch, again supporting ring beam ring is connected in fender post.The supporting of this deep foundation ditch be in the construction work than the complex engineering technology, to the deep foundation ditch that supports in having, its ring beam encloses purlin according to the unusual employing cast-in-situ steel reinforced concrete rectangular beam or the shaped steel of its supporting form.Shaped steel encloses purlin because of its rigidity of section is little, and the spacing that requires steel to support is close and influence is cut the earth, and increases cost, now seldom adopts.Though and the reinforced concrete rectangular beam has the advantage that construction is flexible, applicability is strong, beam section height when the ring beam span is big, steel using amount is big, cost is high.If when the multilayer ring beam supports, also can influence the basement external wall construction.The external prestressing ring beam proposes for these problems that solve the rectangle ring beam just.The application of external prestressing technology in deep foundation pit support yet there are no report.
Summary of the invention
The utility model will solve that present deep foundation ditch cast-in-situ steel reinforced concrete straight-flanked ring beam section is big, reinforcing bar and concrete amount is big, cost is high, span is subjected to certain limitation, influence problem such as basement external wall construction, proposes deep foundation pit reinforced concrete supporting ring beam of the present utility model for this reason.
For addressing the above problem, its special character of the technical solution adopted in the utility model is to be provided with the linear beam that ring is connected in deep foundation pit fender post, the described linear beam outside is provided with alternate and supporting lug described linear beam one, the described linear beam outside is provided with the strutbeam perpendicular to described linear beam with described linear beam one between adjacent described supporting lug, wear in the described supporting lug and be embedded with the pipe of reeving, stretch-draw has steel strand between the described adjacent supporting lug, described steel strand are pressured in described strutbeam outer face, described steel strand both ends pass reeve pipe and the stretch-draw prestressing force in the described supporting lug, and steel strand are anchored in supporting lug one side.
Should be connected with bracket on the described strutbeam between strutbeam and described fender post, to guarantee the stable of strutbeam.
The linear beam that ring described in the utility model is connected in deep foundation pit fender post can be: linear beam places the fender post upper end to put in order with the fender post dowel and waters; Perhaps linear beam places the fender post outside; Perhaps described fender post is I-shaped fender post, and linear beam places the I-shaped fender post outside and linear beam partly to be embedded between the web of I-shaped fender post.
Strutbeam between the adjacent supporting lug described in the utility model can one or more.
The utility model adopts the external prestressing new technology, loosens described steel strand before ring beam is removed, and steel strand reclaim and can reuse.
This reality have novel described in linear beam, supporting lug and strutbeam be the reinforced concrete structure of integral cast-in-situ.
The utility model is owing to adopt the compound beam of external prestressing, event is compared with cast-in-situ steel reinforced concrete ring beam commonly used has remarkable advantage, comprise: 1. cost reduces significantly: the invar twisted wire is recyclable so save steel more than 80%, concrete is more than 40%, total cost reduces more than 60%, and the big more cost advantage of span is remarkable more; 2. the ring beam distortion reduces: adopt prestressing technique can make linear beam produce reversal deformation, and compound beam rigidity can effectively reduce soil deformation greatly; 3. convenient construction: avoided the influence of ring beam to underground chamber outer wall construction, support interval strengthens and has made things convenient for excavation and construction, avoids or has reduced the influence of ring beam demolition blasting to surrounding environment.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model one embodiment plan structure schematic diagram;
Fig. 3 is the another embodiment plan structure of a utility model schematic diagram;
Fig. 4 is Fig. 2 A-A sectional view;
Fig. 5 is Fig. 3 B-B sectional view.
The specific embodiment
Embodiment one
Deep foundation pit reinforced concrete supporting ring beam, referring to Fig. 1, Fig. 2 and Fig. 4, be provided with the linear beam 1 that ring is connected in deep foundation pit fender post 7, this linear beam 1 places fender post 7 upper ends and fender post 7 dowels to put in order and waters, the linear beam outside is provided with the supporting lug 5 alternate and support bar shored 6 described linear beam one, the linear beam outside is provided with two strutbeams 2 perpendicular to described linear beam with described linear beam one between adjacent supporting lug, the strutbeam downside is connected with bracket 4 between strutbeam 2 and described fender post 7, wear in the supporting lug 5 and be embedded with the pipe of reeving, stretch-draw has steel strand 3 between the adjacent supporting lug, steel strand 3 are pressured in described strutbeam outer face, steel strand 3 both ends pass in the described supporting lug reeving the pipe and stretch-draw prestressing force be anchored in supporting lug 5 one sides.
Embodiment two
This routine deep foundation pit reinforced concrete supporting ring beam, what be different from example is that linear beam 1 places fender post 7 outsides (direction one side in the hole) and is positioned at the vertical place of fender post, be provided with a strutbeam 2 between the adjacent supporting lug perpendicular to linear beam with the linear beam one, bracket 4 is connected in the strutbeam upside, and linear beam partly places between the fender post web, referring to Fig. 3 and Fig. 5, other structure is identical with last example.
Claims (3)
1, deep foundation pit reinforced concrete supporting ring beam, it is characterized in that being provided with the linear beam (1) that ring is connected in deep foundation pit fender post (7), the described linear beam outside is provided with alternate and supporting lug described linear beam one (5), the described linear beam outside is provided with the strutbeam perpendicular to described linear beam (2) with described linear beam one between adjacent described supporting lug, wear in the described supporting lug and be embedded with the pipe of reeving, stretch-draw has steel strand (3) between the described adjacent supporting lug, described steel strand are pressured in described strutbeam outer face, described steel strand both ends pass in the described supporting lug reeving the pipe and stretch-draw prestressing force be anchored in supporting lug one side.
2, deep foundation pit reinforced concrete supporting ring beam as claimed in claim 1 is characterized in that being connected with on the described strutbeam bracket (4) and is positioned between strutbeam (2) and the described fender post (7).
3, deep foundation pit reinforced concrete supporting ring beam as claimed in claim 1 or 2 is characterized in that described ring is connected in the linear beam of deep foundation pit fender post (7) (1) and is meant: linear beam (1) places fender post (7) upper end to put in order with fender post (7) dowel and waters; Perhaps linear beam (1) places fender post (7) outside; Perhaps described fender post is I-shaped fender post, and linear beam (1) places the I-shaped fender post outside and linear beam partly to be embedded between the web of I-shaped fender post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200836884U CN201176594Y (en) | 2008-03-04 | 2008-03-04 | Reinforced concrete support ring beam for deep-foundation pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200836884U CN201176594Y (en) | 2008-03-04 | 2008-03-04 | Reinforced concrete support ring beam for deep-foundation pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201176594Y true CN201176594Y (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200836884U Expired - Fee Related CN201176594Y (en) | 2008-03-04 | 2008-03-04 | Reinforced concrete support ring beam for deep-foundation pit |
Country Status (1)
| Country | Link |
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| CN (1) | CN201176594Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824825A (en) * | 2010-05-28 | 2010-09-08 | 天津三建建筑工程有限公司 | Deep foundation pit open cutting construction method |
| CN102839675A (en) * | 2012-09-25 | 2012-12-26 | 上海新强劲工程技术有限公司 | Long-span pre-stress fish belly sill for foundation pit support and mounting method thereof |
| CN103850259A (en) * | 2014-03-27 | 2014-06-11 | 宁波冶金勘察设计研究股份有限公司 | Horizontal inner support at capping beam elevation of foundation pit supporting and protecting system and construction method thereof |
| CN105274997A (en) * | 2015-10-22 | 2016-01-27 | 浙江欣捷建设有限公司 | Rib type brackets and method for constructing top way steel pipe support and top plate through brackets |
| CN105421465A (en) * | 2015-11-16 | 2016-03-23 | 东通岩土科技（杭州）有限公司 | Anchoring assembly of building foundation pit crescent beam supporting system |
| CN106013170A (en) * | 2016-05-20 | 2016-10-12 | 东通岩土科技（杭州）有限公司 | Prestress steel member crescent beam ejecting device |
| CN106320348A (en) * | 2016-08-30 | 2017-01-11 | 中建三局第建设工程有限责任公司 | Opposite-pulling anchor cable supporting structure for adjacent deep foundation pits and construction method of opposite-pulling anchor cable supporting structure |
| CN108060674A (en) * | 2016-11-09 | 2018-05-22 | 杭州南联土木工程科技有限公司 | Prefabricated assembled reinforcing bar concrete support system |
-
2008
- 2008-03-04 CN CNU2008200836884U patent/CN201176594Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101824825A (en) * | 2010-05-28 | 2010-09-08 | 天津三建建筑工程有限公司 | Deep foundation pit open cutting construction method |
| CN102839675B (en) * | 2012-09-25 | 2014-12-24 | 上海新强劲工程技术有限公司 | Method of long-span pre-stress fish belly sill for foundation pit support |
| CN102839675A (en) * | 2012-09-25 | 2012-12-26 | 上海新强劲工程技术有限公司 | Long-span pre-stress fish belly sill for foundation pit support and mounting method thereof |
| CN103850259B (en) * | 2014-03-27 | 2016-04-27 | 宁波冶金勘察设计研究股份有限公司 | The horizontal inner support at the capping beam absolute altitude place of foundation pit supporting system and construction method thereof |
| CN103850259A (en) * | 2014-03-27 | 2014-06-11 | 宁波冶金勘察设计研究股份有限公司 | Horizontal inner support at capping beam elevation of foundation pit supporting and protecting system and construction method thereof |
| CN105274997A (en) * | 2015-10-22 | 2016-01-27 | 浙江欣捷建设有限公司 | Rib type brackets and method for constructing top way steel pipe support and top plate through brackets |
| CN105274997B (en) * | 2015-10-22 | 2017-05-31 | 浙江欣捷建设有限公司 | Muscle formula bracket and the method for pushing up road steel pipe support and top board using bracket construction |
| CN105421465A (en) * | 2015-11-16 | 2016-03-23 | 东通岩土科技（杭州）有限公司 | Anchoring assembly of building foundation pit crescent beam supporting system |
| CN106013170A (en) * | 2016-05-20 | 2016-10-12 | 东通岩土科技（杭州）有限公司 | Prestress steel member crescent beam ejecting device |
| CN106013170B (en) * | 2016-05-20 | 2018-03-09 | 东通岩土科技（杭州）有限公司 | Prestress steel component crescent moon beam holding device |
| CN106320348A (en) * | 2016-08-30 | 2017-01-11 | 中建三局第建设工程有限责任公司 | Opposite-pulling anchor cable supporting structure for adjacent deep foundation pits and construction method of opposite-pulling anchor cable supporting structure |
| CN108060674A (en) * | 2016-11-09 | 2018-05-22 | 杭州南联土木工程科技有限公司 | Prefabricated assembled reinforcing bar concrete support system |
| CN108060674B (en) * | 2016-11-09 | 2021-04-27 | 杭州南联土木工程科技有限公司 | Prefabricated assembled steel bone concrete support system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090107 Termination date: 20130304 |