CN205421352U - Adopt reverse construction method post -cast strip reinforced structure of dowel steel - Google Patents
Adopt reverse construction method post -cast strip reinforced structure of dowel steel Download PDFInfo
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- CN205421352U CN205421352U CN201620057100.2U CN201620057100U CN205421352U CN 205421352 U CN205421352 U CN 205421352U CN 201620057100 U CN201620057100 U CN 201620057100U CN 205421352 U CN205421352 U CN 205421352U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 62
- 239000010959 steel Substances 0.000 title claims abstract description 62
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 210000003205 muscle Anatomy 0.000 claims abstract description 56
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 21
- 239000011241 protective layer Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to an adopt reverse construction method post -cast strip reinforced structure of dowel steel belongs to provisional secret support engineering field. The utility model discloses it is advocated muscle, lower part distribution muscle and is formed to be advocated muscle, upper portion distribution muscle, lower part by dowel steel, upper portion, is advocated muscle, upper portion distribution muscle, lower part and is advocated muscle, lower part distribution muscle and constituted the reinforcing bar that post -cast strip position department was reserved to the beam slab in upper portion, lower part distribution muscle arranges on the muscle is advocated in the lower part, is advocated the muscle and arrange on upper portion distribution muscle in top, and the distance of upper portion distribution muscle to lower part distribution muscle goes up the advocated diameter of muscle, upper portion distribution muscle of lower protection layer thickness and upper portion, interval arrangement dowel steel on reserving the lower part distribution muscle of locating the post -cast strip position for beam slab board thickness subtracts. The utility model discloses the submerged problem in post -cast strip can not only effectively be solved in the setting of dowel steel, can satisfy the requirement of whole horizontal support system integrality and rigidity moreover.
Description
Technical field
This utility model relates to a kind of contrary sequence method post-cast strip ruggedized construction using dowel steel, belongs to and temporarily descends bracing engineering field.
Background technology
Along with going deep into of China's each big city underground space development, emerging the provisional bracing engineering of substantial amounts of deep basal pit, cantilevered Double-row-piles Structure is widely used as the efficient support system of one.But, general cantilever formula double-row pile often there will be the phenomenons such as the loss of inter-pile soil body, intensity reduction so that the synergism between stake, soil is weakened, thus causes general cantilever formula Double-row-piles Structure stress performance to be greatly lowered.Comparatively speaking, first, double compacted bearing disk pile is because of the squeezing action of squeezed facility, and the soil body of branch periphery is by densification, and its physico-mechanical properties increases；Secondly, front and back the branch on campshed is connected or is close, and will form the passage transmitting load the most reliably under the effect of soil pressure so that being more uniformly stressed rationally of front and rear row pile body；Finally, due to be provided with branch and force bearing disk, the resistance to compression of pile body and breakout capacity improve, therefore its resistance to capsizing is also enhanced.Therefore, on the premise of soil layer property is suitable for, replaces common double-row pile foundation pit support structure with double extruding-enlarging branch tray pile pit supporting construction and be very important.
Summary of the invention
This utility model provides a kind of contrary sequence method post-cast strip ruggedized construction using dowel steel, effectively solves the problem that post-cast strip sinks.
The technical solution of the utility model is: a kind of contrary sequence method post-cast strip ruggedized construction using dowel steel, is made up of dowel steel 1, top advocated muscle 4, bottom distributing reinforcement 5 of muscle 2, top distributing reinforcement 3, bottom of being advocated；
Described top is constituted beam slab 6 by muscle 2 of advocating, top distributing reinforcement 3, bottom reserve the reinforcing bar of position, post-cast strip 7 by muscle 4 of advocating, bottom distributing reinforcement 5; bottom distributing reinforcement 5 is arranged in bottom and is advocated on muscle 4; upper part muscle 2 of being advocated is arranged on top distributing reinforcement 3; the distance of distributing reinforcement 3 to bottom, top distributing reinforcement 5 is that beam slab 6 thickness of slab deducts upper and lower protective layer thickness and top by advocating muscle 2, the diameter of top distributing reinforcement 3, and on the bottom distributing reinforcement 5 of position, reserved post-cast strip 7, dowel steel 1 is arranged at interval.
The form of described dowel steel 1 can use H profile steel, I-steel, steel pipe.
The left and right anchorage length of described dowel steel 1 is respectively 500mm ~ 1000mm, chooses according to the design width of post-cast strip 7.
The arrangement interval of described dowel steel 1 is 500mm ~ 1000mm, chooses according to the load that design width and the beam slab 6 of post-cast strip 7 are transmitted.
This utility model uses step as follows:
(1) the excavation top layer soil body；
(2) template of underground structure top layer beam slab 6 is set up；
(3) reinforcing bar of colligation underground structure top layer beam slab 6, the most first reserves protective layer and sets up bottom and advocated muscle 4, layout bottom distributing reinforcement 5 thereon；Then set up top distributing reinforcement 3, arrange to be advocated muscle 2 in top thereon；
(4) dowel steel 1 is set at a certain distance on the bottom distributing reinforcement 5 of position, reserved post-cast strip 7；
(5) top layer beam slab 6 concrete is poured；
(6) after top layer beam slab 6 concrete reaches design strength, form removal also excavates next layer soil body；
(7) repeat above step, carry out the construction of underground structure every layer beam slab 6；
(8) after underground structure remainder has been constructed, process post-cast strip 7 by construction joint requirement, after clearing up, correcting reinforcing bar, retain dowel steel 1, pour the concrete of 7 at post-cast strip, complete the construction of underground structure.
The beneficial effects of the utility model are: the setting of dowel steel can not only effectively solve the problem that post-cast strip sinks, and can meet whole horizontal struts system integrity and the requirement of rigidity.
Accompanying drawing explanation
Fig. 1 is the contrary sequence method post-cast strip ruggedized construction beam reinforced steel bar colligation floor map that this utility model uses dowel steel；
Fig. 2 is the contrary sequence method post-cast strip ruggedized construction H profile steel dowel steel A-A sectional schematic diagram that this utility model uses dowel steel；
Fig. 3 is the contrary sequence method post-cast strip ruggedized construction beam slab concreting floor map that this utility model uses dowel steel；
Fig. 4 is that this utility model uses the ruggedized construction post-cast strip, contrary sequence method post-cast strip of dowel steel to pour floor map；
Fig. 5 is the contrary sequence method post-cast strip ruggedized construction I-steel dowel steel A-A sectional schematic diagram that this utility model uses dowel steel；
Fig. 6 is the contrary sequence method post-cast strip ruggedized construction steel pipe dowel steel A-A sectional schematic diagram that this utility model uses dowel steel；
Each label in figure: 1-dowel steel, 2-is advocated on top muscle, 3-top distributing reinforcement, and 4-is advocated bottom muscle, 5-bottom distributing reinforcement, 6-beam slab, 7-post-cast strip,lThe left anchorage length of-dowel steel.
Detailed description of the invention
Embodiment 1: as shown in figures 1 to 6, a kind of contrary sequence method post-cast strip ruggedized construction using dowel steel, it is made up of dowel steel 1, top advocated muscle 4, bottom distributing reinforcement 5 of muscle 2, top distributing reinforcement 3, bottom of being advocated；
Described top is constituted beam slab 6 by muscle 2 of advocating, top distributing reinforcement 3, bottom reserve the reinforcing bar of position, post-cast strip 7 by muscle 4 of advocating, bottom distributing reinforcement 5; bottom distributing reinforcement 5 is arranged in bottom and is advocated on muscle 4; upper part muscle 2 of being advocated is arranged on top distributing reinforcement 3; the distance of distributing reinforcement 3 to bottom, top distributing reinforcement 5 is that beam slab 6 thickness of slab deducts upper and lower protective layer thickness and top by advocating muscle 2, the diameter of top distributing reinforcement 3, and on the bottom distributing reinforcement 5 of position, reserved post-cast strip 7, dowel steel 1 is arranged at interval.
Wherein it is desired to the contrary sequence method post-cast strip width 800mm, the thickness of slab 300mm of beam slab 6 that reinforce, dowel steel 1 uses the H profile steel of 100 × 100 × 6 × 8, and the every limit of anchorage length is respectively 800mm, and spacing is 1000mm, and section is as shown in Figure 2.
Embodiment 2: a kind of contrary sequence method post-cast strip ruggedized construction using dowel steel, is made up of dowel steel 1, top advocated muscle 4, bottom distributing reinforcement 5 of muscle 2, top distributing reinforcement 3, bottom of being advocated；
Described top is constituted beam slab 6 by muscle 2 of advocating, top distributing reinforcement 3, bottom reserve the reinforcing bar of position, post-cast strip 7 by muscle 4 of advocating, bottom distributing reinforcement 5; bottom distributing reinforcement 5 is arranged in bottom and is advocated on muscle 4; upper part muscle 2 of being advocated is arranged on top distributing reinforcement 3; the distance of distributing reinforcement 3 to bottom, top distributing reinforcement 5 is that beam slab 6 thickness of slab deducts upper and lower protective layer thickness and top by advocating muscle 2, the diameter of top distributing reinforcement 3, and on the bottom distributing reinforcement 5 of position, reserved post-cast strip 7, dowel steel 1 is arranged at interval.
Wherein it is desired to the contrary sequence method post-cast strip width 800mm, the thickness of slab 300mm of beam slab 6 that reinforce, dowel steel 1 uses the i shaped steel of I10, and the every limit of anchorage length is respectively 850mm, and spacing is 900mm, and section is as shown in Figure 5.
Embodiment 3: a kind of contrary sequence method post-cast strip ruggedized construction using dowel steel, is made up of dowel steel 1, top advocated muscle 4, bottom distributing reinforcement 5 of muscle 2, top distributing reinforcement 3, bottom of being advocated；
Described top is constituted beam slab 6 by muscle 2 of advocating, top distributing reinforcement 3, bottom reserve the reinforcing bar of position, post-cast strip 7 by muscle 4 of advocating, bottom distributing reinforcement 5; bottom distributing reinforcement 5 is arranged in bottom and is advocated on muscle 4; upper part muscle 2 of being advocated is arranged on top distributing reinforcement 3; the distance of distributing reinforcement 3 to bottom, top distributing reinforcement 5 is that beam slab 6 thickness of slab deducts upper and lower protective layer thickness and top by advocating muscle 2, the diameter of top distributing reinforcement 3, and on the bottom distributing reinforcement 5 of position, reserved post-cast strip 7, dowel steel 1 is arranged at interval.
The contrary sequence method post-cast strip width 800mm needed reinforcement, the thickness of slab 300mm of beam slab 6, dowel steel 1 uses the steel pipe of 102 × 5, and the every limit of anchorage length is respectively 1000mm, and spacing is 700mm, and section is as shown in Figure 6.
Above in conjunction with accompanying drawing, detailed description of the invention of the present utility model is explained in detail, but this utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art are possessed, it is also possible on the premise of without departing from this utility model objective, various changes can be made.
Claims (4)
1. the contrary sequence method post-cast strip ruggedized construction using dowel steel, it is characterised in that: it is made up of dowel steel (1), top advocated muscle (4), bottom distributing reinforcement (5) of muscle (2), top distributing reinforcement (3), bottom of being advocated；
Advocated muscle (2) in described top, top distributing reinforcement (3), advocated muscle (4) in bottom, bottom distributing reinforcement (5) constitutes the reinforcing bar of reserved post-cast strip (7) position of beam slab (6), bottom distributing reinforcement (5) is arranged in bottom and is advocated on muscle (4), upper part muscle (2) of being advocated is arranged on top distributing reinforcement (3), top distributing reinforcement (3) to the distance of bottom distributing reinforcement (5) is that beam slab (6) thickness of slab deducts upper and lower protective layer thickness and is advocated muscle (2) in top, the diameter of top distributing reinforcement (3), dowel steel (1) is arranged at the upper interval of bottom distributing reinforcement (5) in reserved post-cast strip (7) position.
The contrary sequence method post-cast strip ruggedized construction of employing dowel steel the most according to claim 1, it is characterised in that: the form of described dowel steel (1) can use H profile steel, I-steel, steel pipe.
The contrary sequence method post-cast strip ruggedized construction of employing dowel steel the most according to claim 1 and 2, it is characterised in that: the left and right anchorage length of described dowel steel (1) is respectively 500mm ~ 1000mm, chooses according to the design width of post-cast strip (7).
The contrary sequence method post-cast strip ruggedized construction of employing dowel steel the most according to claim 1 and 2, it is characterized in that: the arrangement interval of described dowel steel (1) is 500mm ~ 1000mm, choose according to the load that design width and the beam slab (6) of post-cast strip (7) are transmitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620057100.2U CN205421352U (en) | 2016-01-21 | 2016-01-21 | Adopt reverse construction method post -cast strip reinforced structure of dowel steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620057100.2U CN205421352U (en) | 2016-01-21 | 2016-01-21 | Adopt reverse construction method post -cast strip reinforced structure of dowel steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205421352U true CN205421352U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620057100.2U Expired - Fee Related CN205421352U (en) | 2016-01-21 | 2016-01-21 | Adopt reverse construction method post -cast strip reinforced structure of dowel steel |
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| CN (1) | CN205421352U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149695A (en) * | 2018-02-08 | 2018-06-12 | 合肥市市政设计研究总院有限公司 | For the short support construction of steel and construction method of station accessory structure foundation pit Force transmission parts |
| CN111173036A (en) * | 2019-10-17 | 2020-05-19 | 浙江省建筑设计研究院 | Deformation control method and device for horizontal beam plate supporting structure of reverse foundation pit |
-
2016
- 2016-01-21 CN CN201620057100.2U patent/CN205421352U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149695A (en) * | 2018-02-08 | 2018-06-12 | 合肥市市政设计研究总院有限公司 | For the short support construction of steel and construction method of station accessory structure foundation pit Force transmission parts |
| CN111173036A (en) * | 2019-10-17 | 2020-05-19 | 浙江省建筑设计研究院 | Deformation control method and device for horizontal beam plate supporting structure of reverse foundation pit |
| CN111173036B (en) * | 2019-10-17 | 2021-05-28 | 浙江省建筑设计研究院 | Deformation control method and device for horizontal beam plate supporting structure of reverse foundation pit |
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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: 20160803 Termination date: 20180121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |