CN109826202A - A kind of prefabricated concrete structure for pattern foundation pit supporting structure - Google Patents
A kind of prefabricated concrete structure for pattern foundation pit supporting structure Download PDFInfo
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- CN109826202A CN109826202A CN201910135938.7A CN201910135938A CN109826202A CN 109826202 A CN109826202 A CN 109826202A CN 201910135938 A CN201910135938 A CN 201910135938A CN 109826202 A CN109826202 A CN 109826202A
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- steel plate
- reinforced concrete
- foundation pit
- nut
- pit supporting
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- 239000004567 concrete Substances 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 63
- 239000010959 steel Substances 0.000 claims abstract description 63
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 35
- 238000010276 construction Methods 0.000 claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 6
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 208000009146 rhinoscleroma Diseases 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The present invention provides a kind of prefabricated concrete structures for pattern foundation pit supporting structure, including standard reinforced concrete beam unit, horizontal connection steel plate, concrete switching beam, L-type junction steel plate, rockery type connect billet, pre-embedded steel slab, pre-embedded bolt, screw rod, bolt, nut.Wherein five faces at standard reinforced concrete beam unit both ends are pre-embedded steel slab, steel plate is reliably connected with arrangement of reinforcement in beam, beam body uses high-strength concrete, respectively there is one group of horizontally and vertically through aperture at the both ends of beam, and the basic unit of this supporting construction is connected and composed by screw rod, nut and horizontal steel plate.The support form that can be combined into various pattern foundation pit supporting structures is connect with each model reinforced concrete beam unit by using the steel member of different structure type form, is adapted to the needs of various pattern foundation pit supporting structures.
Description
Technical field
The present invention relates to field of engineering technology, particularly, be related to it is a kind of for pattern foundation pit supporting structure in terms of device.
Background technique
Support pattern at present in pattern foundation pit supporting structure is various, there is anchor cable, stake, inner support etc..With Construction Technology
Requirement of the surrounding enviroment to foundation pit construction is higher and higher in raising and urban construction, and inner support becomes in foundation pit peripheral space
One of the important feature form of city foundation pit construction under limited circumstances.
Current widely used inner support primary structure form reinforced concrete inner support, assembling type steel structure inner support,
Concrete filled steel tube inner support.It is often composed using multiple structural forms in Practical Project, for simple component, steel pipe
The simple compression strength of concrete is high, but since it welds, pour, the limitation of shape etc., use scope is limited.
Reinforced concrete inner support system is current most popular frame mode, there is one-time-concreting, construction letter
The advantages that list, good reliability, rigidity are big, overall deformation is small, but supporting role could be formed after its scleroma, and concrete shrinkage becomes
Shape is big, it is most important that can not generally reuse, tear support heavy workload open.
Assembling type steel structure inner support is also more and more applied at present in the design of its support of interior foundation pit, setting
Flexibly, construction and installation are convenient, are installed and have formed supporting role, and jack Prestressing can be used, tear support side open
Just can be with use repeatly, but its component composition is comparatively more, and stability depends on installation quality, precision,
The main reason for reliability and eccentric degree of node are all its stress destructions.
The present invention can make up disadvantages mentioned above to a certain extent, all be prefabricated component since the utility model is most of, most of
It is connected using bolt, nut, quality is easy to control, and speed of application is fast, and structure is simple, convenient disassembly.
Summary of the invention
It is an object of that present invention to provide a kind of structures for pattern foundation pit supporting structure inner support, to solve in ordinary reinforced concrete
The drying shrinkage of support construction, it is long in time limit, tear the difficult problem of support open.
To achieve the above object, the present invention provides a kind of prefabricated concrete structures, including standard reinforced beam
Unit, horizontal connection steel plate, concrete switching beam, L-type junction steel plate, rockery type connect billet, pre-embedded steel slab, pre-embedded bolt,
Screw rod, bolt, nut.Wherein five faces at standard reinforced concrete beam unit both ends are pre-embedded steel slab, arrangement of reinforcement in steel plate and beam
Be reliably connected, beam body uses high-strength concrete, and respectively there is one group of horizontally and vertically through aperture at the both ends of beam, by screw rod,
Nut and horizontal steel plate connect and compose the basic unit of this supporting construction.By using the steel member of different structure type form and each
Model reinforced concrete beam unit connects the support form that can be combined into various pattern foundation pit supporting structures, is adapted to various pattern foundation pit supporting structures
Needs.
Five faces at standard reinforced concrete beam unit both ends are pre-embedded steel slab, and main reinforcement uses in pre-embedded steel slab and beam
It is welded to connect and fixes, the steel plate in five faces need not form enclosed construction completely, and certain gap provides easy for construction between can reserving.
The standard reinforced concrete beam unit, the suitable 0.3~1.0m of side length, the suitable 3~6m of length.It is beam both ends horizontal, vertical
Two rows of suitable 1cm~3cm of perforated holes opening diameter, this two rows run through the suitable 3cm~12cm of spacing.Hole location should be avoided leading
Muscle, preferably distance 2cm or more are advisable.
Being connected by screw rod for standard reinforced concrete beam unit both ends hole and steel plate, is preferably fixed using double nut, excellent
Choosing increases nut gasket under nut.
The invention has the following advantages:
The present invention passes through standard reinforced concrete beam unit, 2 double-length standard reinforced concrete beam units and armored concrete
The combination of switching beam and all kinds of Steel section members can build and appoint shape internal support structure system, after building, standard girder construction and structure
Part is readily removable to be removed and reuses.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the general structure schematic diagram of the preferred embodiment of the present invention；
Fig. 2 be the preferred embodiment of the present invention with stand column pile structure connection diagram；
Fig. 3 is the schematic diagram of several Standard Beams of the preferred embodiment of the present invention；
Fig. 4 is that state diagrammatic cross-section is applied in combination in single-beam combination of the present invention and four beams
Wherein, 1, High-strength Reinforced Concrete Beam body, 2, to piercing hole, 3, pre-embedded steel slab, 4, shallow bore hole, 5, standard reinforced concrete
Native beam element, 6, screw rod, 7, bolt, 8, nut, 9, horizontal connection steel plate, 10, small steel column, 11, mountain font billet, 12, L-type
Number connection steel part, 13, triangular reinforced steel rib, 14, pre-embedded steel slab, 15, pattern foundation pit supporting structure crown beam, 16, pre-embedded bolt, 17, screw thread
Steel, 18, stand column pile, 19, steel rib of putting more energy into, 20, construction drill, 21,2 double-length rebar standards concrete beam units, 22, reinforcing bar it is mixed
Solidifying soil switching beam
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of prefabricated concrete structure, wherein standard reinforced concrete beam unit 5 by
Pre-embedded steel slab 3 with High-strength Reinforced Concrete Beam body 1, beam, on steel plate to piercing hole 2 and for assembling when 4 groups of shallow bore hole of device to hole
At.Screw rod 6 is used to connect horizontal connection steel plate 9 across piercing hole 2.Small steel column 10 is filled in shallow bore hole 4 for tuning up the assembly of beam.
Mountain font billet 11 is for adjusting installation gap and increasing prestressing force.L-type number connects steel part 12 and is used for standard reinforced concrete
Native beam element 5 is connect with pre-embedded steel slab 14.Triangular reinforced steel rib 13 is welded on L model and connects on rigid part 12, makes L-type company
Rigid part 12 is connect to be unlikely to deform.Pre-embedded bolt 16 is used for the connection of pre-embedded steel slab 14 and pattern foundation pit supporting structure crown beam.Screw-thread steel 17 is used for steel
Plate is embedded in the construction drill 20 of stand column pile 18.It puts more energy into and is welded and fixed between steel rib 19 and stand column pile 18, be used to support standard
Reinforced concrete beam unit 5.2 double-length rebar standards concrete beam units 21 can be used in the combination of some large span components,
Armored concrete switching beam 22 can be used as the switching node between each Standard Beam.
Specific embodiment is as follows:
When implementation, stand column pile 18 is buried, is constructed since stand column pile 18 from foundation pit center to foundation pit surrounding, such as Fig. 2.
When standard reinforced concrete beam unit 5 when 18 equivalent width of stand column pile with that can use, directly using screw rod 6,
Bolt 7, nut 8 connect standard reinforced concrete beam unit 5 and stand column pile 18 by horizontal connection steel plate 9.
When standard reinforced concrete beam unit 5 is inconsistent with stand column pile 18, can the first placing concrete into stand column pile 18,
After concrete coagulation, construction drill 20 is opened, high-strength anchoring adhesive is perfused, is implanted with the pre-embedded steel slab 14 of screw-thread steel 17.To intensity
After satisfaction, it is connect with standard reinforced concrete beam unit 5 by screw rod 6, bolt 7, nut 8 using L-type number connection steel part 12.
After the completion of connecting between column 18, start the connection between two standard reinforced concrete beam units 5, also
There are the connection with pattern foundation pit supporting structure crown beam 15, such as Fig. 1.
Connection between standard reinforced concrete beam unit 5 and standard reinforced concrete beam unit 5 is first passed through small steel column
In 10 insertion shallow bore holes 4, two beams are closed up into alignment, four sides horizontal connection steel plate 9 is passed through by screw rod 6, nut 8 to perforation
Hole 2 connects, and section is as shown in left in Figure 4.
Finally, standard reinforced concrete beam unit 5 and pattern foundation pit supporting structure crown beam 15 equally pass through pre-embedded steel slab 14, in shallow bore hole 4
The small steel column 10 of middle insertion can open insertion mountain font billet 11 and apply pre- answer according to the size in construction gap by very heavy
Power, the screw rod 6 of steel part 12 of L-type number connection later, bolt 7, nut 8 connect standard reinforced concrete beam unit 5 and pattern foundation pit supporting structure
Pre-embedded steel slab 14 in crown beam 15.
There is each standard element that may be used in construction: standard reinforced concrete beam unit 5,2 double-length rebar standards reinforcing bars
Concrete beam unit 21, armored concrete switching beam 22,4 standard reinforced concrete beam units, 5 component units, 42 times
Combination composed by long rebar standards concrete beam unit 21, as shown in Figure 3.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of prefabricated concrete structure for pattern foundation pit supporting structure, including standard reinforced concrete beam unit, horizontal connection steel
Plate, concrete switching beam, L-type junction steel plate, rockery type connect billet, pre-embedded steel slab, pre-embedded bolt, screw rod, bolt, nut；
Wherein five faces at standard reinforced concrete beam unit both ends are pre-embedded steel slab, and steel plate is reliably connected with arrangement of reinforcement in beam, beam body
Using high-strength concrete, respectively there is one group of horizontally and vertically through aperture at the both ends of beam, are connected by screw rod, nut and horizontal steel plate
The basic unit for constituting this supporting construction is connect, by using the steel member and each model reinforced beam of different structure type form
Unit connects the support form that can be combined into various pattern foundation pit supporting structures, is adapted to the needs of various pattern foundation pit supporting structures；
Five faces at standard reinforced concrete beam unit both ends are pre-embedded steel slab, and main reinforcement is using welding in pre-embedded steel slab and beam
It is connected and fixed, the steel plate in five faces need not form enclosed construction completely, and certain gap provides easy for construction between can reserving；
The standard reinforced concrete beam unit, the suitable 0.3~1.0m of side length, the suitable 3~6m of length, beam both ends horizontal, vertical two rows
Suitable 1cm~the 3cm of perforated holes opening diameter, this two rows run through the suitable 3cm~12cm of spacing, and hole location should avoid main reinforcement, preferably
Distance 2cm or more is advisable；
Being connected by screw rod for standard reinforced concrete beam unit both ends hole and steel plate, is preferably fixed using double nut, excellent
Choosing increases nut gasket under nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135938.7A CN109826202A (en) | 2019-02-25 | 2019-02-25 | A kind of prefabricated concrete structure for pattern foundation pit supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135938.7A CN109826202A (en) | 2019-02-25 | 2019-02-25 | A kind of prefabricated concrete structure for pattern foundation pit supporting structure |
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| Publication Number | Publication Date |
|---|---|
| CN109826202A true CN109826202A (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910135938.7A Withdrawn CN109826202A (en) | 2019-02-25 | 2019-02-25 | A kind of prefabricated concrete structure for pattern foundation pit supporting structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456034A (en) * | 2020-05-15 | 2020-07-28 | 中建四局第六建设有限公司 | Construction technology of cast-in-place reinforced concrete foundation pit inner support structure |
| CN111764401A (en) * | 2020-07-10 | 2020-10-13 | 王冰璇 | Full-assembly combined plate support |
| CN114718087A (en) * | 2022-05-09 | 2022-07-08 | 深圳市综合交通与市政工程设计研究总院有限公司 | Construction method for post-connection assembly of foundation pit concrete inner support |
-
2019
- 2019-02-25 CN CN201910135938.7A patent/CN109826202A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456034A (en) * | 2020-05-15 | 2020-07-28 | 中建四局第六建设有限公司 | Construction technology of cast-in-place reinforced concrete foundation pit inner support structure |
| CN111764401A (en) * | 2020-07-10 | 2020-10-13 | 王冰璇 | Full-assembly combined plate support |
| CN111764401B (en) * | 2020-07-10 | 2023-09-26 | 王冰璇 | Full-assembled combined board support |
| CN114718087A (en) * | 2022-05-09 | 2022-07-08 | 深圳市综合交通与市政工程设计研究总院有限公司 | Construction method for post-connection assembly of foundation pit concrete inner support |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190531 |
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| WW01 | Invention patent application withdrawn after publication |