CN209568450U - A kind of connection structure for foundation pit assembled inner bracing member and crown beam - Google Patents
A kind of connection structure for foundation pit assembled inner bracing member and crown beam Download PDFInfo
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- CN209568450U CN209568450U CN201920185350.8U CN201920185350U CN209568450U CN 209568450 U CN209568450 U CN 209568450U CN 201920185350 U CN201920185350 U CN 201920185350U CN 209568450 U CN209568450 U CN 209568450U
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- bracing member
- crown beam
- inner bracing
- foundation pit
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Abstract
The utility model discloses a kind of connection structures for foundation pit assembled inner bracing member and crown beam, including crown beam and inner bracing member；Crown beam is equipped with the post-cast strip being adapted with inner bracing member, and the main reinforcement of perforation post-cast strip is embedded in crown beam；Several dowels are stretched out on the end face of inner bracing member, and dowel is inserted into post-cast strip and is fixedly connected with main reinforcement, crown beam and inner bracing member is connected and fixed through casting concrete in post-cast strip.It effectively raises the globality that assembled inner bracing member is connect with crown beam, is connected firmly, construction is simple, can save the duration, can effectively guarantee construction quality, is adapted for promoting and applying.
Description
Technical field
The utility model belongs to precast concrete technical field, and in particular to one kind is used for foundation pit assembled inner support
The connection structure of component and crown beam.
Background technique
Inner support supporting construction is a kind of common support form of pattern foundation pit supporting structure, in the theory of low-carbon environment-friendly, green energy conservation
Under guidance, favor of the prefabricated construction by architectural engineering.
As ultra-deep, super foundation engineering increase, supporting member is connect with crown beam in foundation pit supporting project entirety
The requirement of property steps up.Formwork pours to form foundation pit supporting system foundation pit inner support on site with crown beam at present, and construction is existing
Field pours inner support, is limited by the limitation of field condition, the construction period is longer, and construction quality is difficult to ensure, seriously affects sometimes
The safety of foundation pit supporting system.
Therefore, it is necessary to a kind of new technology is longer to solve the construction period in the prior art, construction quality is difficult to ensure, shadow
The problem of ringing the safety of foundation pit supporting system.
Utility model content
Longer to solve the construction period in the prior art, construction quality is difficult to ensure, influences the safety of foundation pit supporting system
Property the problem of, the utility model provides a kind of connection structure for foundation pit assembled inner bracing member and crown beam, effectively
The globality for improving assembled inner bracing member and being connect with crown beam, be connected firmly, construction is simple can save the duration, can
Effectively to guarantee construction quality, it is adapted for promoting and applying.
The utility model uses following technical scheme:
A kind of connection structure for foundation pit assembled inner bracing member and crown beam, including crown beam and inner bracing member；
The crown beam is equipped with the post-cast strip being adapted with the inner bracing member, is embedded with described in perforation in the crown beam
The main reinforcement of post-cast strip；
Stretch out several dowels on the end face of the inner bracing member, the dowel be inserted into the post-cast strip and with
Main ribs are fixedly connected, and are connected and fixed the crown beam with inner bracing member through casting concrete in the post-cast strip.
It is further used as the improvement of technical solutions of the utility model, the seam of the post-cast strip is straight seam.
It is further used as the improvement of technical solutions of the utility model, the dowel includes HRB400 reinforcing bar, and the company
Connect protective layer of the muscle on the inner bracing member with a thickness of 50mm or more.
It is further used as the improvement of technical solutions of the utility model, main ribs include HRB400 reinforcing bar, and main ribs
Protective layer in the crown beam with a thickness of 60mm or more.
It is further used as the improvement of technical solutions of the utility model, main ribs are welded and fixed with the dowel, and institute
It states main reinforcement and is cased with several stirrups on one section of the post-cast strip, the stirrup is welded and fixed with main ribs.
It is further used as the improvement of technical solutions of the utility model, the spacing of two adjacent stirrups is 100mm.
It is further used as the improvement of technical solutions of the utility model, the concrete poured in the post-cast strip is early strong coagulation
Soil.
It is further used as the improvement of technical solutions of the utility model, the grade label of the early strength concrete is than the crown beam
And/or more than the high 2 grade labels of grade label of the concrete of inner bracing member.
It is further used as the improvement of technical solutions of the utility model, the crown beam is site concrete.
It is further used as the improvement of technical solutions of the utility model, the inner bracing member is prefabricated components.
Compared with prior art, the utility model has the following beneficial effects: the inner bracing member in the utility model is prefabricated
Component, pre-production is transported to construction site fortunately and is assembled before construction, there is the time for shortening site operation, saves work
Phase；Crown beam and inner bracing member carry out pouring fixed connection type by post-cast strip, effectively raise inner bracing member with
The globality of crown beam connection, is connected firmly, construction is simple can effectively guarantee construction quality, be adapted for promoting and applying.
Detailed description of the invention
The technology of the utility model is described in further detail with reference to the accompanying drawings and detailed description:
Fig. 1 is overall structure diagram；
Fig. 2 is whole top view；
Fig. 3 is whole front view；
Fig. 4 is whole side view.
Appended drawing reference:
1- crown beam；2- inner bracing member；The post-cast strip 11-；12- main reinforcement；13- stirrup；21- dowel.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that not conflicting
In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.What is used everywhere in attached drawing is identical
Appended drawing reference indicates the same or similar part.
It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature,
It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In addition, this
The descriptions such as upper and lower, left and right used in utility model are only the phase relative to each component part of the utility model in attached drawing
For mutual positional relationship.
Referring to figs. 1 to Fig. 4, a kind of structure being connect for foundation pit assembled inner bracing member with crown beam, including 1 He of crown beam
Inner bracing member 2.Wherein, the crown beam 1 is site concrete, and cast in situs forms on construction ground；The inner bracing member 2 is
Prefabricated components, are transported to the construction place of production again after Workshop Production molding and crown beam 1 is assembled.
Specifically, the crown beam 1 reserves the post-cast strip 11 being adapted with the inner bracing member 2 in pouring molding,
Post-cast strip 11 uses straight seam, is embedded with the main reinforcement 12 for penetrating through the post-cast strip 11 in the crown beam 1；
Several dowels 21 are stretched out on the end face of the inner bracing member 2, the dowel 21 is inserted into the post-cast strip
It is fixedly connected in 11 and with main ribs 12, through casting concrete by the crown beam 1 and inner bracing member 2 in the post-cast strip 11
It is connected and fixed.If main reinforcement 12 influences protruding into for dowel 21 in crown beam 1, dowel 21 can be bent, guarantee to be not less than
The anchorage length of 35d.
It should be noted that the concrete poured in the post-cast strip 11 is early strength concrete, to accelerate the speed of solidification
Degree；And the grade label of the early strength concrete is higher by 2 than the grade label of the crown beam 1 and/or the concrete of inner bracing member 2
More than a grade label, guarantee the bonding strength of crown beam 1 and inner bracing member 2 at post-cast strip 11.
Wherein, the dowel 21 uses HRB400 reinforcing bar, guarantees bonding strength, and the dowel 21 is in the interior branch
Support the protective layer on component 2 with a thickness of 50mm or more, protect reinforcing bar to be not rusted, be also convenient for 21 stress of dowel.
Main ribs 12 include HRB400 reinforcing bar, and protective layer of the main ribs 12 in the crown beam 1 with a thickness of
60mm or more.
Preferably, main ribs 12 are welded and fixed with the dowel 21, and main ribs 12 are in the post-cast strip 11
Several stirrups 13 are cased on one section, the stirrup 13 is welded and fixed with main ribs 12, the dense distribution in main reinforcement 12 of stirrup 13,
Encryption 13rd area of stirrup is formed, each 13 equidistantly distributed of stirrup, the spacing of the stirrup 13 of adjacent two is 100mm, with enhancing
The bonding strength of crown beam 1 and inner bracing member 2.
Inner bracing member 2 in the utility model is prefabricated components, and pre-production is transported to construction field fortunately before construction
Ground is assembled, and has the time for shortening site operation, saves the duration；Crown beam 1 and inner bracing member 2 are carried out by post-cast strip 11
Fixed connection type is poured, the globality that inner bracing member is connect with crown beam 1 is effectively raised, is connected firmly, construction letter
It is single, it can effectively guarantee construction quality, be adapted for promoting and applying.
It is described in the utility model to join for other contents of foundation pit assembled inner bracing member and the connection structure of crown beam
See the prior art, details are not described herein.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, therefore it is all without departing from the content of the technical scheme of the utility model, implement according to the technical essence of the utility model to above
Any modification, equivalent variations and modification, are still within the scope of the technical solutions of the present invention made by example.
Claims (10)
1. a kind of connection structure for foundation pit assembled inner bracing member and crown beam, including crown beam and inner bracing member, special
Sign is: the crown beam is equipped with the post-cast strip being adapted with the inner bracing member, is embedded with described in perforation in the crown beam
The main reinforcement of post-cast strip；
Stretch out several dowels on the end face of the inner bracing member, the dowel be inserted into the post-cast strip and with it is described
Main reinforcement is fixedly connected, and is connected and fixed the crown beam with inner bracing member through casting concrete in the post-cast strip.
2. the connection structure according to claim 1 for foundation pit assembled inner bracing member and crown beam, it is characterised in that:
The seam of the post-cast strip is straight seam.
3. the connection structure according to claim 1 for foundation pit assembled inner bracing member and crown beam, it is characterised in that:
The dowel includes HRB400 reinforcing bar, and protective layer of the dowel on the inner bracing member with a thickness of 50mm with
On.
4. the connection structure according to claim 1 for foundation pit assembled inner bracing member and crown beam, it is characterised in that:
Main ribs include HRB400 reinforcing bar, and protective layer of the main ribs in the crown beam with a thickness of 60mm or more.
5. the connection structure according to claim 1 for foundation pit assembled inner bracing member and crown beam, it is characterised in that:
Main ribs are welded and fixed with the dowel, and main ribs are cased with several stirrups on one section of the post-cast strip, described
Stirrup is welded and fixed with main ribs.
6. the connection structure according to claim 5 for foundation pit assembled inner bracing member and crown beam, it is characterised in that:
The spacing of two adjacent stirrups is 100mm.
7. the connection structure according to claim 1 for foundation pit assembled inner bracing member and crown beam, it is characterised in that:
The concrete poured in the post-cast strip is early strength concrete.
8. the connection structure according to claim 7 for foundation pit assembled inner bracing member and crown beam, it is characterised in that:
The grade label of the early strength concrete 2 grades higher than the grade label of the crown beam and/or the concrete of inner bracing member
It is more than label.
9. the connection structure according to any one of claim 1 to 8 for foundation pit assembled inner bracing member and crown beam,
It is characterized by: the crown beam is site concrete.
10. the connection knot according to any one of claim 1 to 8 for foundation pit assembled inner bracing member and crown beam
Structure, it is characterised in that: the inner bracing member is prefabricated components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920185350.8U CN209568450U (en) | 2019-02-01 | 2019-02-01 | A kind of connection structure for foundation pit assembled inner bracing member and crown beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920185350.8U CN209568450U (en) | 2019-02-01 | 2019-02-01 | A kind of connection structure for foundation pit assembled inner bracing member and crown beam |
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| Publication Number | Publication Date |
|---|---|
| CN209568450U true CN209568450U (en) | 2019-11-01 |
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ID=68335189
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920185350.8U Active CN209568450U (en) | 2019-02-01 | 2019-02-01 | A kind of connection structure for foundation pit assembled inner bracing member and crown beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115012423A (en) * | 2022-06-07 | 2022-09-06 | 广州地铁设计研究院股份有限公司 | Waist beam pouring construction method for foundation pit support and waist beam structure |
-
2019
- 2019-02-01 CN CN201920185350.8U patent/CN209568450U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115012423A (en) * | 2022-06-07 | 2022-09-06 | 广州地铁设计研究院股份有限公司 | Waist beam pouring construction method for foundation pit support and waist beam structure |
| CN115012423B (en) * | 2022-06-07 | 2023-10-10 | 广州地铁设计研究院股份有限公司 | Waist beam pouring construction method and waist beam structure for foundation pit support |
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