CN209082509U - It is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit - Google Patents
It is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit Download PDFInfo
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- CN209082509U CN209082509U CN201821169002.3U CN201821169002U CN209082509U CN 209082509 U CN209082509 U CN 209082509U CN 201821169002 U CN201821169002 U CN 201821169002U CN 209082509 U CN209082509 U CN 209082509U
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- pier
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Abstract
It falls to support the load bearing support structure of bracing members for underground structure deep basal pit the utility model discloses a kind of, including the support pier below bracing members is arranged in, support pier is fixed on underframe longitudinal member, using reinforced concrete structure, it is connect with underframe longitudinal member by embedded bar, embedded bar is evenly arranged on the periphery of the support pier, and isolation structure is equipped between support pier and underframe longitudinal member, and embedded bar passes through isolation structure.The utility model supports bracing members by using the support pier that steel and concrete structure is arranged on underframe longitudinal member to support, and bearing capacity is big, and structure is safe and reliable.Simultaneously it is not necessary that pre-embedded steel slab and collet are arranged on main body side wall, bracing members fall arrest protection system is saved, reduces steel plate dosage, avoids the adverse effect to side wall, reduces the disease that side wall forms water connection infiltration by wall reinforcing bar.Keep the dismounting of support pier very convenient by using quarantine measures, underframe longitudinal member will not be damaged.
Description
Technical field
The utility model relates to a kind of foundation pit construction structures, especially a kind of to fall to support bracing members for underground structure deep basal pit
Load bearing support structure.
Background technique
With increasing for China's underground space engineering construction, it is getting faster by the Development of Underground Engineering of representative of subway, vehicle
Excavation of foundation pit depth of standing is deeper and deeper, and AT STATION in major project construction, it is essential that the bracing members of foundation pit, which fall to support,.In depth
In the work progress of foundation pit, the load bearing support structure of bracing members are as follows: the pre-embedded steel slab on main body side wall welds on pre-embedded steel slab
Collet.Above structure the problem is that: one) fall support after bracing members do not apply prestressing force, lean on the passive stress of malformation, steel branch
Support self weight is entirely delivered to collet, is easy to fall, and dangerous hidden danger is big, needs to increase anti-falling safe measure, and construction cost is high；
Two) bracing members and side wall are rigid connection, are damaged after building enclosure deformation to main body side wall big.Side wall Support Position pre-embedded steel slab
Place is easy infiltration, and water seepage treatment is difficult；Three) the long 25.4m of bracing members, single 10 tons of self weight, hoisting process easily collides,
It is high to lift required precision, lifting is difficult, supports long in time limit；Four) the load bearing support structure load-bearing formed by pre-embedded steel slab and collet
Enabling capabilities are poor, and reliability is not high；Five) after main structure binds, bracing members are removed, and operation is removed in station
Space is small, needs to set up after frame body is fixed and remove, and removes slowly, removal cost is high.
Summary of the invention
The utility model is to solve technical problem present in well-known technique and provide a kind of for underground structure deep basal pit
Support bracing members load bearing support structure, the structure load bearing support ability is strong, securely and reliably, construct and remove it is at low cost, will not
Adverse effect is caused to main structure.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique: one kind is for ground
Flowering structure deep basal pit falls to support the load bearing support structure of bracing members, including the support pier below bracing members, the support pier is arranged in
It is fixed on underframe longitudinal member, using reinforced concrete structure, is connect with underframe longitudinal member by embedded bar, the embedded bar is equal
Cloth is equipped with isolation structure on the periphery of the support pier between the support pier and underframe longitudinal member, and the embedded bar passes through described
Isolation structure.
It is equipped with separation sleeve in the bottom of the embedded bar, it is described that the upper surface for being set on the isolation structure is isolated
On.
The support pier is equipped with symmetrical two parts, and two section lowers of the support pier are by level to drawing
The support construction coincideing with bracing members shape is formed at reinforcing bar connection, lower part.
The structure further includes that the flexible buffer support plate at bracing members both ends is arranged in.
The isolation structure is formed using isolation board or barrier coat.
The isolation board is using made of aluminium-plastic panel.
The separation sleeve is using made of benzene plate.
The flexible buffer support plate is made into using rock wool.
The utility model has the advantages and positive effects of: by using the branch that steel and concrete structure is arranged on underframe longitudinal member
It supports pier and supports bracing members to supportMiddle part, bearing capacity is big, and structure is safe and reliable, is not only able to meet the load-bearing that bracing members support
It is required that and supportted lifting convenient for bracing members, safety is more preferable.Simultaneously without on main body side wall be arranged pre-embedded steel slab and
Collet saves bracing members fall arrest protection system, reduces steel plate dosage, avoid the adverse effect to side wall, reduce
Side wall forms the disease of water connection infiltration by wall reinforcing bar.Keep the dismounting of support pier very convenient by using quarantine measures, no
Underframe longitudinal member can be damaged.By using the structure in bracing members both ends setting flexible buffer support plate, make bracing members and side wall shape
At flexible connection, damage of the building enclosure deformation to main body side wall can be reduced.In conclusion the utility model is vertical using bottom plate
Beam and support pier support the bracing members after support replacement jointly, and safety is more secure, and construction is removed conveniently, and economy is more preferable, can
Save cost.
Detailed description of the invention
Fig. 1 is the plan view of the utility model；
Fig. 2 is the elevation of the utility model；
Fig. 3 is the A-A sectional view of Fig. 1.
In figure: 1, support pier；2, arrangement of reinforcement；3, isolation board；4, underframe longitudinal member；5, bracing members；6, horizontal to drawing reinforcing bar；7, every
From set；8, embedded bar；9, flexible buffer support plate.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing:
FIG. 1 to FIG. 3 is please referred to, it is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit, including set
The support pier 1 below bracing members 5 is set, the support pier 1 is fixed on underframe longitudinal member 4, using reinforced concrete structure, the bottom of with
Plate stringer 4 is connected by embedded bar 8, and the periphery of the support pier 1 is arranged in the embedded bar 8, at the support pier 1 and bottom
Isolation structure is equipped between plate stringer 4, the embedded bar 8 passes through the isolation structure.
In the present embodiment, more convenient in order to make to remove, it is equipped with separation sleeve 7 in the bottom of the embedded bar 8, it is described
Separation sleeve 7 is arranged on the upper surface of the isolation structure.When removing support pier 1, separation sleeve 7 and embedded bar need to be only cut off
8, the cutting to concrete is reduced, labor intensity is reduced, improves construction efficiency, it is at low cost to reduce dismounting.In the present embodiment, it is
It is easy for construction, remove convenient, the support pier 1 is equipped with symmetrical two parts, under two parts of the support pier 1
By horizontal to drawing reinforcing bar 6 to connect, the support construction coincideing with 5 shape of bracing members is formed at lower part in portion.In order to protect main structure,
The load bearing support structure is respectively provided with flexible buffer support plate 9 at the both ends of bracing members 5.In the present embodiment, the isolation structure
Recommend using the formation of isolation board 3.Theoretically above-mentioned isolation structure can also be formed using barrier coat.More specifically, it is described every
It is using made of aluminium-plastic panel from plate 3.The separation sleeve 7 is using made of benzene plate.The flexible buffer support plate 9 is to use
What rock wool was made into, material is cheap, is easy to get.
The construction method of above structure:
One) it when constructing main structure underframe longitudinal member 4, carries out the measurement and positioning of embedded bar 8 and completes pre-buried.
Two) the pre-buried installation for carrying out isolation board 3 after the completion.
Three) arrangement of reinforcement 2 and level that support pier is bound on embedded bar 8 are effectively connected them to reinforcing bar 6 is drawn,
Entirety is formed, guarantees that horizontal direction does not move.
Four) template processing is carried out according to the size of support pier 1.
Five) installation of separation sleeve 7 is carried out before casting concrete, the bottom of embedded bar 8 is isolated with concrete for guarantee.
Six) inspection that hole, appearance piece are carried out after the completion of formwork, has inspected after-pouring C45 concrete, when pouring
It vibrates, guarantees the quality of support pier 1, demoulding can be carried out by ensuring that corner angle are not damaged after pouring completion 24 hours.
After support pier 1 reaches intensity, the lifting installation of bracing members 5 can be carried out, is supportted.It is not necessarily in side wall construction
The pre-buried welding with collet of steel plate is carried out, without setting fall arrest safeguard measure.When main structure completion, and it is strong to reach design
After degree, the dismounting of bracing members 5 is carried out first, is then supported the dismounting of pier 1.When removing support pier 1, it is isolated first
The cleaning of set 7, so as to drawing 6, i.e., the exposing of embedded bar 8, then cuts off embedded bar 8 with horizontal using hand-held abrasive wheel cutting machine
Whole removal can be carried out, by the isolation of isolation board 3, the underframe longitudinal member 4 of main structure will not be damaged.To underframe longitudinal member 4
On embedded bar 8 use waterproof mortar finish.
In summary: above-mentioned load bearing support structure can ensure the stabilization of bracing members 5 in the horizontal and vertical directions
Property.And the lifting of bracing members 5 and dismounting can be made more convenient, cancel pre-embedded steel slab and collet configuration, reduces side wall and pass through
Wall reinforcing bar forms the disease of water connection infiltration.
Although being described above in conjunction with preferred embodiment of the attached drawing to the utility model, the utility model is not
It is confined to above-mentioned specific embodiment, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
In the case where range, many forms can also be made, these are belonged within the protection scope of the utility model.
Claims (8)
1. a kind of fall to support the load bearing support structure of bracing members for underground structure deep basal pit, which is characterized in that including being arranged in steel
The support pier of lower section is supported, the support pier is fixed on underframe longitudinal member, using reinforced concrete structure, passes through with underframe longitudinal member
Embedded bar connection, the embedded bar is evenly arranged on the periphery of the support pier, be equipped between the support pier and underframe longitudinal member every
From structure, the embedded bar passes through the isolation structure.
2. according to claim 1 fall to support the load bearing support structure of bracing members for underground structure deep basal pit, feature exists
In in the bottom of the embedded bar equipped with separation sleeve, the isolation is set on the upper surface of the isolation structure.
3. according to claim 2 fall to support the load bearing support structure of bracing members for underground structure deep basal pit, feature exists
In the support pier is equipped with symmetrical two parts, and two section lowers of the support pier are by horizontal to drawing reinforcing bar
The support construction coincideing with bracing members shape is formed at connection, lower part.
4. according to claim 1 fall to support the load bearing support structure of bracing members for underground structure deep basal pit, feature exists
In the structure further includes that the flexible buffer support plate at bracing members both ends is arranged in.
5. according to claim 1 fall to support the load bearing support structure of bracing members for underground structure deep basal pit, feature exists
In the isolation structure is formed using isolation board or barrier coat.
6. according to claim 5 fall to support the load bearing support structure of bracing members for underground structure deep basal pit, feature exists
In the isolation board is using made of aluminium-plastic panel.
7. according to claim 2 fall to support the load bearing support structure of bracing members for underground structure deep basal pit, feature exists
In the separation sleeve is using made of benzene plate.
8. according to claim 4 fall to support the load bearing support structure of bracing members for underground structure deep basal pit, feature exists
In the flexible buffer support plate is made into using rock wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169002.3U CN209082509U (en) | 2018-07-23 | 2018-07-23 | It is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821169002.3U CN209082509U (en) | 2018-07-23 | 2018-07-23 | It is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit |
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| Publication Number | Publication Date |
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| CN209082509U true CN209082509U (en) | 2019-07-09 |
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| CN201821169002.3U Active CN209082509U (en) | 2018-07-23 | 2018-07-23 | It is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842787A (en) * | 2018-07-23 | 2018-11-20 | 中国建筑第六工程局有限公司 | It is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit |
-
2018
- 2018-07-23 CN CN201821169002.3U patent/CN209082509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842787A (en) * | 2018-07-23 | 2018-11-20 | 中国建筑第六工程局有限公司 | It is a kind of to fall to support the load bearing support structure of bracing members for underground structure deep basal pit |
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