CN207176694U - A kind of supporting construction of encorbelmenting for foundation pit steel support - Google Patents
A kind of supporting construction of encorbelmenting for foundation pit steel support Download PDFInfo
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- CN207176694U CN207176694U CN201721026404.3U CN201721026404U CN207176694U CN 207176694 U CN207176694 U CN 207176694U CN 201721026404 U CN201721026404 U CN 201721026404U CN 207176694 U CN207176694 U CN 207176694U
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- coupling beam
- steel
- stand column
- bracing members
- encorbelmenting
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Abstract
The utility model discloses a kind of supporting construction of encorbelmenting for foundation pit steel support, it includes：It is vertically arranged in foundation ditch and perpendicular to the stand column pile for the bracing members being respectively set up in parallel；The steel coupling beam being fixedly mounted through the stand column pile and its middle part with stand column pile, its both ends stretches out in the stand column pile and forms cantilever design, and the steel coupling beam be arranged at below each bracing members and with each bracing members traversed by, to be supported to each bracing members；And more drag-lines, one end of each drag-line is fixedly connected with the position being located in stand column pile above steel coupling beam, the other end is each individually fixed in the diverse location on two cantilever ends of steel coupling beam, and the support of encorbelmenting to steel coupling beam is realized in a manner of this is with steel coupling beam formation oblique pull suspension cable.Steel coupling beam and the lattice column in stand column pile are connected by supporting construction of the present utility model of encorbelmenting using multiple zips, and encorbelmenting for long length can be realized in the case where not increasing stand column pile, reliable and stable support is formed to more bracing members.
Description
Technical field
The utility model belongs to base pit engineering technical field, and in particular to a kind of support knot of encorbelmenting for foundation pit steel support
Structure.
Background technology
In Metro station excavation engineering, bracing members are often designed and needed as a kind of conventional supporting member, its stability
The key factor of consideration.Generally, can be vertical by increasing in bracing members stability deficiency to ensure bracing members stability
The vertical supporting system of stanchion and steel coupling beam composition meets bracing members stability requirement, that is, sets stand column pile and lattice column, will
Firm coupling beam is erected on lattice column and with this cross-brace bracing members, keeps it stable.
Above-mentioned support scheme usually occurs that steel coupling beam is encorbelmented the situations of bracing members, i.e. lattice column two in design and construction
The steel coupling beam at end forms cantilever design, and bracing members are arranged on the cantilever of the steel coupling beam.By steel coupling beam inherently safe and stably
The requirement of property, steel coupling beam cantilever span be not easy it is long, typically no more than 2m, and the single bracing members that can only encorbelment.To overcome
Drawbacks described above, common solution method are in one end increase stand column pile of encorbelmenting, and reduce cantilever span, still, this increase column
On the one hand the scheme of stake adds engineering cost and construction period, on the other hand, excessive stand column pile is unfavorable for base in foundation ditch
The excavation operation in hole, and there is also problem for the assembly connection between excessive stand column pile or lattice column and steel coupling beam.Therefore, have
Necessity proposes a kind of supporting construction of encorbelmenting suitable for foundation pit steel support, the defects of to overcome existing supporting construction to bring.
Utility model content
For the disadvantages described above or Improvement requirement of prior art, the utility model provides a kind of for foundation pit steel support
Encorbelment supporting construction, it is improved and optimizated by structure, is connected steel coupling beam with the lattice column in stand column pile using multiple zips
It is fixed, the structure type of similar suspension bridge is formed, so as to realize encorbelmenting for long length in the case where not increasing stand column pile,
Reliable and stable support is formed to more bracing members, avoids tradition from encorbelmenting the stability hidden danger of support and excessive stand column pile brings
Foundation pit construction trouble and assembly connection problem.
To achieve the above object, according to one side of the present utility model, there is provided a kind of encorbelmenting for foundation pit steel support
Supporting construction, it is characterised in that including：
It is vertically arranged in foundation ditch and perpendicular to the stand column pile for the bracing members being respectively set up in parallel；
Steel coupling beam, it is fixedly mounted through the stand column pile and its middle part with stand column pile, and its both ends stretches out in the column
Stake simultaneously forms cantilever design, and the steel coupling beam be arranged at below each bracing members and with each bracing members traversed by, to each bracing members
It is supported；And
Drag-line, it is more, and one end of each drag-line is fixedly connected with the position being located in stand column pile above steel coupling beam, separately
One end is each individually fixed in the diverse location on two cantilever ends of steel coupling beam, real in a manner of this is with steel coupling beam formation oblique pull suspension cable
Now to the support of encorbelmenting of steel coupling beam.
As further improvement of the utility model, more than two steel branch are supported by each cantilever end of steel coupling beam
Support.
As further improvement of the utility model, it is respectively provided with each cantilever end of steel coupling beam between any two bracing members
There is drag-line.
As further improvement of the utility model, the drag-line is steel strand wires.
As further improvement of the utility model, the drag-line is connected by fixed angle steel with steel coupling beam.
As further improvement of the utility model, the drag-line is connected by fixed angle steel with stand column pile.
As further improvement of the utility model, the stand column pile upper end is provided with lattice column, the steel coupling beam and institute
State lattice column fixed installation.
As further improvement of the utility model, shown steel coupling beam is vertically arranged with each bracing members.
In general, by the contemplated above technical scheme of the utility model compared with prior art, have with following
Beneficial effect：
(1) supporting construction of the present utility model of encorbelmenting, it makes its cantilever by setting drag-line to the both ends cantilever of steel coupling beam
End passes through drag-line and stand column pile fixed strain, the principle of reference cable-stayed bridge stress, vertical lotus load being converted into stand column pile
Carry, the maximized bearing capacity for playing stand column pile, not only considerably increase the cantilever span of steel coupling beam, at the same can encorbelment it is more with
Bracing members；
(2) supporting construction of the present utility model of encorbelmenting, solve the problems, such as that steel coupling beam cantilever span is small, optimize stand column pile
Arrangement, the principle for using for reference cable-stayed bridge played the vertical bearing capacity of stand column pile to greatest extent, and reliable in quality, construction is just
Victory, safety economy, there are all engineerings of stand column pile support bracing members suitable for foundation ditch.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram of the supporting construction of encorbelmenting of the utility model one embodiment；
Fig. 2 is diagrammatic cross-section of the supporting construction along A-A directions of encorbelmenting in Fig. 1；
In all of the figs, same reference represents identical technical characteristic, is specially：1- stand column pile, 2- lattices
Post, 3- steel coupling beams, 4- bracing members, 5- drag-lines, 6- fix angle steel.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
As long as in addition, technical characteristic involved in each embodiment of the utility model disclosed below each other it
Between do not form conflict can be mutually combined.
Fig. 1 is the overlooking the structure diagram of the supporting construction of encorbelmenting of the utility model one embodiment；Fig. 2 is in Fig. 1
Diagrammatic cross-section of the supporting construction of encorbelmenting along A-A directions, wherein 1- stand column pile, 2- lattice columns, 3- steel coupling beams, 4- bracing members, 5-
Drag-line, 6- fix angle steel.
As illustrated in fig. 1 and 2, the supporting construction of encorbelmenting for foundation pit steel support of the utility model embodiment, it includes vertical
Stanchion 1, steel coupling beam 3 and drag-line 5.Wherein, stand column pile 1 is vertically arranged in foundation ditch, and perpendicular to being disposed in parallel in foundation ditch absolute altitude
Each bracing members 4 on face.
In a preferred embodiment, the top of stand column pile 1 sets lattice column 2, and it is similarly vertical direction arrangement, with this from base
Cheat it is protruding under on bracing members 4, for the pillar as steel coupling beam 3.
As illustrated in fig. 1 and 2, steel coupling beam 3 passes through lattice column 2, and middle part and the lattice column 2 of lattice column 2 are fixedly mounted, steel coupling beam
3 both ends stretch out in lattice column 2 and form cantilever design (or being cantilevered structure).The steel coupling beam 3 is in strip, positioned at each steel branch
The lower section of support 4, and its upper surface contacts with each bottom surface of bracing members 4 and intersected, and is preferably mutually perpendicular to, to enter to each bracing members 4
Row support.
As illustrated in fig. 1 and 2, more than two bracing members are supported by each cantilever end of steel coupling beam 3, i.e., each cantilever end
On have at least two bracing members being set up in parallel, such as two, three, four, or more.
For preferably stable support, the supporting construction in this programme also includes more drag-lines 5, and drag-line is preferably steel strand
Line, naturally it is also possible to be the various ropes or other elements for meeting corresponding tensile strength.One end of each drag-line 5 is consolidated with lattice column
Fixed, fixing point is located at the top of steel coupling beam 3, pulling force, drag-line quantity and the cantilever design that its specific height is born according to drag-line
Bracing members quantity supported etc. is calculated.
The other end of drag-line 5 is fixedly connected with the cantilever end of steel coupling beam 3, in this way by steel coupling beam 3 and drag-line 5 and column
The similar stayed bridge structure of the composition of stake 1, so as to effectively supporting steel coupling beam, the stress of transmission steel coupling beam 3, so as to effectively
Support more bracing members 4.
In a preferred embodiment, the quantity of drag-line 5 is even number root, at least two, or four, the six roots of sensation, eight
Root or more even number root, particular number determine according to factors such as the length of cantilever end, bracing members quantity.More preferably, both ends
The quantity of drag-line 5 is identical and is symmetrical arranged.
In preferred embodiment, the position between any two bracing members 4 on each cantilever end of steel coupling beam 3 is all connected with
There is drag-line 5.In a more preferred embodiment, the outside of the outermost bracing members 4 of each cantilever end is also connected with drag-line 5.
The supporting construction of encorbelmenting of this programme, by setting stayed structure, the cantilever span of steel coupling beam can be increased, use for reference oblique pull
The principle of bridge stress, vertical load load being converted into stand column pile, the maximized bearing capacity for playing stand column pile, not only
The cantilever span of steel coupling beam is considerably increased, while it is more with bracing members to encorbelment, solve that conventional solution method is a series of to ask
Topic.
In a preferred embodiment, drag-line 5 is connected with lattice column 2 and steel coupling beam 3 respectively by fixed angle steel 6, certainly
Fixation can also be attached using other connectors.
As it will be easily appreciated by one skilled in the art that preferred embodiment of the present utility model is the foregoing is only, not
To limit the utility model, any modification of all made within spirit of the present utility model and principle, equivalent substitution and change
Enter, should be included within the scope of protection of the utility model.
Claims (8)
- A kind of 1. supporting construction of encorbelmenting for foundation pit steel support, it is characterised in that including：It is vertically arranged in foundation ditch and perpendicular to the stand column pile for the bracing members being respectively set up in parallel；Steel coupling beam, it is fixedly mounted through the stand column pile and its middle part with stand column pile, and its both ends stretches out in the stand column pile simultaneously Form cantilever design, and the steel coupling beam be arranged at below each bracing members and with each bracing members traversed by, to be carried out to each bracing members Support；AndDrag-line, it is more, and one end of each drag-line is fixedly connected with the position being located in stand column pile above steel coupling beam, the other end Diverse location on two cantilever ends of steel coupling beam is each individually fixed in, is realized in a manner of this forms oblique pull suspension cable with steel coupling beam pair The support of encorbelmenting of steel coupling beam.
- 2. the supporting construction of encorbelmenting according to claim 1 for foundation pit steel support, wherein, each cantilever of steel coupling beam More than two bracing members are supported by end.
- 3. the supporting construction of encorbelmenting according to claim 1 or 2 for foundation pit steel support, wherein, each of steel coupling beam is hanged On arm end drag-line is provided between any two bracing members.
- 4. the supporting construction of encorbelmenting according to claim 1 or 2 for foundation pit steel support, wherein, the drag-line twists for steel Line.
- 5. the supporting construction of encorbelmenting according to claim 1 or 2 for foundation pit steel support, wherein, the drag-line passes through solid Determine angle steel to be connected with steel coupling beam.
- 6. the supporting construction of encorbelmenting according to claim 1 or 2 for foundation pit steel support, wherein, the drag-line passes through solid Determine angle steel to be connected with stand column pile.
- 7. the supporting construction of encorbelmenting according to claim 1 or 2 for foundation pit steel support, wherein, the stand column pile upper end Lattice column is provided with, the steel coupling beam is fixedly mounted with the lattice column.
- 8. the supporting construction of encorbelmenting according to claim 1 or 2 for foundation pit steel support, wherein, shown steel coupling beam with it is each Bracing members are vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721026404.3U CN207176694U (en) | 2017-08-16 | 2017-08-16 | A kind of supporting construction of encorbelmenting for foundation pit steel support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721026404.3U CN207176694U (en) | 2017-08-16 | 2017-08-16 | A kind of supporting construction of encorbelmenting for foundation pit steel support |
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| CN207176694U true CN207176694U (en) | 2018-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354946A (en) * | 2017-08-16 | 2017-11-17 | 中铁第四勘察设计院集团有限公司 | A kind of supporting construction of encorbelmenting for foundation pit steel support |
-
2017
- 2017-08-16 CN CN201721026404.3U patent/CN207176694U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354946A (en) * | 2017-08-16 | 2017-11-17 | 中铁第四勘察设计院集团有限公司 | A kind of supporting construction of encorbelmenting for foundation pit steel support |
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