CN204435388U - Deep foundation ditch stage construction support changing structure for use - Google Patents
Deep foundation ditch stage construction support changing structure for use Download PDFInfo
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- CN204435388U CN204435388U CN201420825391.6U CN201420825391U CN204435388U CN 204435388 U CN204435388 U CN 204435388U CN 201420825391 U CN201420825391 U CN 201420825391U CN 204435388 U CN204435388 U CN 204435388U
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- support
- replacement beam
- foundation ditch
- support replacement
- deep foundation
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Abstract
The utility model provides a kind of deep foundation ditch stage construction support changing structure for use, it comprises the support replacement beam between first phase structural beams and the second stage of support beam structure, under described support replacement beam, be erected with full hall scaffold and the support scaffolding that support replacement beam conducts oneself with dignity can be carried, and full hall scaffold and support scaffolding separate, in described deep foundation ditch stage construction support changing structure for use, be also provided with reinforcement structure, described reinforcement structure comprises the stirrup set up in the structure girder near support replacement beam-ends and the negative reinforcement be located in support replacement beam.It has easy construction, safe and reliable feature, by arranging independent bracing frame under support replacement beam, arranging simultaneously and strengthening structure accordingly, add the intensity of support changing structure for use, ensure that the safety of Second Construction, facilitate follow-up dismounting cleaning simultaneously, reduction of erection time, reduce job costs.
Description
Technical field
The utility model relates to foundation pit reinforced concrete horizontal support structure technical field, particularly relates to a kind of deep foundation ditch stage construction support changing structure for use.
Background technology
Along with the quickening of urban construction, the land resources of Inner city seems especially nervous, and in process of construction, the removal problem involved also gets more and more, in order to ensure that engineering is carried out in time and smoothly, mainly take now the way of stage construction, but during to stage construction, just there is higher requirement, in order to address this problem to the quality of connection of beneath concrete structure and structural safety when docking, support changing structure for use is provided with between first phase and the second stage of the project main body
Existing support changing structure for use be one, the second stage of basement junction adopts steel pipe support to live support replacement beam, second phase basement structure is not first connected with first phase structure, can provide safeguard for the construction of the second stage of basement, there is following defect in such structure: arranges heavy in section steel pipe under (1) zai9 support replacement beam, wherein 1 layer, the underground every root of 6m height steel pipe heavily about 1.6t, on-the-spot pillar crane coverage can not meet the lifting requirements in all regions completely; (2) support replacement beam is abolished and is needed to abolish one deck and intensity reaches requirement and just can abolish lower one deck after concreting is completed, and can only manually abolish, and the spended time cycle is long; (3) in scheme every layer need steel pipe many, can only single use, cost is higher, and the steel pipe removed can not utilize pillar crane to hang out, and needs to cut off and hand fit's carrying; (4) when dismounting the 2nd layer is with the 3rd layer of support replacement beam forms
needwait until that its corresponding base plate reaches design strength and can construct after removing bed die, whole support replacement removes needs 3 first quarter moons, takies long in time limit.
Utility model content
For above technical problem, the utility model provides a kind of easy construction, safe and reliable deep foundation ditch stage construction support changing structure for use, it by arranging independent bracing frame under support replacement beam, arrange simultaneously and strengthen structure accordingly, add the intensity of support changing structure for use, ensure that the safety of Second Construction, facilitate follow-up dismounting cleaning simultaneously, reduction of erection time, reduce job costs.
In order to solve existing technical problem, the utility model provides following technical scheme, support changing structure for use comprises the support replacement beam between first phase structural beams and the second stage of support beam structure, under described support replacement beam, be erected with full hall scaffold and the support scaffolding that support replacement beam conducts oneself with dignity can be carried, and full hall scaffold and support scaffolding separate, in described deep foundation ditch stage construction support changing structure for use, be also provided with reinforcement structure, described reinforcement structure comprises the stirrup set up in the structure girder near support replacement beam-ends and the negative reinforcement be located in support replacement beam.
Further, the support scaffolding be located at described under support replacement beam is fastener type steel pipe scaffold.
Further, described stirrup quantity is 9-12 roads, and diameter is 12mm, and the spacing between stirrup is 50mm.
Further, described negative reinforcement is duck muscle, and duck muscle quantity is 2-4 roads, and diameter is 20mm.
When constructing, after first phase basement bottom board concrete strength reaches designing requirement, start the above structure in room, beneath floor of constructing, support replacement beam and first phase underground structure are constructed simultaneously, the reinforcing bar of the intersection of stage construction underground structure beam slab adopts the reinforcing bar of reserved mode plate to go deep in support replacement beam, connects one, reinforcing bar between the second phase finally by welding, because the cross sectional dimensions of support replacement beam is larger, therefore under support replacement beam, be erected with the support scaffolding that can meet the deadweight of carrying support replacement beam while setting up full hall scaffold under support replacement beam, and two parts scaffold is relatively independent, when first phase basement beam slab bed die is removed, support scaffolding under support replacement beam and corresponding mould are not torn open, simultaneously in order to ensure the intensity of support changing structure for use, reinforcement structure is also provided with in support changing structure for use, namely to increase many group stirrups near one end of support replacement beam in first phase structural beam slab and increase in support replacement beam and organize reinforcing bar more, feasibility and the safety that structure ensure that engineering is strengthened by arranging.Support scaffolding under support replacement beam is through Force Calculation, and meet bearing capacity requirement, the weight of support replacement beam can be born alone, when the excavation of foundation pit degree of depth reaches more than 10m, namely after the second stage of foundation ditch horizontal support has certain axial force of the supports, the structural beam slab of first phase near support replacement beam is reinforced, remove the support scaffolding under support replacement beam, support at the second stage of foundation ditch and abolish the stage, reinforced concrete support is abolished together with support replacement beam, compared with prior art, cost of the present utility model is lower, the duration is shorter, follow-up cleaning is more convenient.
Owing to have employed above technical scheme, the utility model has easy construction, safe and reliable feature, it by arranging independent bracing frame under support replacement beam, arrange simultaneously and strengthen structure accordingly, add the intensity of support changing structure for use, ensure that the safety of Second Construction, facilitate follow-up dismounting cleaning simultaneously, reduction of erection time, reduce job costs.
Accompanying drawing explanation
The cut-away illustration of the deep foundation ditch stage construction support changing structure for use that Fig. 1 provides for the utility model embodiment.
In accompanying drawing, Reference numeral is as follows: 1. first phase structural beams; 2. the second stage of brace summer; 3. support replacement beam; 4. support scaffolding; 5. full hall scaffold; 6. stirrup; 7. duck muscle.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.
See Fig. 1, support changing structure for use described in the utility model comprises the support replacement beam 3 between first phase structural beams 1 and the second stage of brace summer 2 structure, it is characterized in that: under described support replacement beam 3, be erected with full hall scaffold 5 and the support scaffolding 4 that can carry support replacement beam 3 and conduct oneself with dignity, and full hall scaffold 5 is separate with support scaffolding 4, in described deep foundation ditch stage construction support changing structure for use, be also provided with reinforcement structure, described reinforcement structure comprises the stirrup 6 set up in the structure girder near support replacement beam-ends and the negative reinforcement be located in support replacement beam.
When constructing, after first phase basement bottom board concrete strength reaches designing requirement, start the above structure in room, beneath floor of constructing, support replacement beam 3 and first phase underground structure are constructed simultaneously, the reinforcing bar of the intersection of stage construction underground structure beam slab adopts the reinforcing bar of reserved mode plate to go deep in support replacement beam, connects one, reinforcing bar between the second phase finally by welding, because the cross sectional dimensions of support replacement beam 3 is larger, therefore while support replacement beam sets up full hall scaffold 53 times, under support replacement beam, be erected with the support scaffolding 4 that can meet carrying support replacement beam 3 and conduct oneself with dignity, and two parts scaffold is relatively independent, when first phase basement beam slab bed die is removed, support scaffolding 4 under support replacement beam 3 and corresponding mould are not torn open, simultaneously in order to ensure the intensity of support changing structure for use, reinforcement structure is also provided with in support changing structure for use, namely to increase many group stirrups 6 near one end of support replacement beam in first phase structural beam slab and increase in support replacement beam 3 and organize reinforcing bar more, feasibility and the safety that structure ensure that engineering is strengthened by arranging.Support scaffolding under support replacement beam is through Force Calculation, and meet bearing capacity requirement, the weight of support replacement beam can be born alone, when the excavation of foundation pit degree of depth reaches more than 10m, namely after the second stage of foundation ditch horizontal support has certain axial force of the supports, the structural beam slab of first phase near support replacement beam 3 is reinforced, remove the support scaffolding 4 under support replacement beam 3, support at the second stage of foundation ditch and abolish the stage, reinforced concrete support is abolished together with support replacement beam 3, compared with prior art, cost of the present utility model is lower, the duration is shorter, follow-up cleaning is more convenient.
The quantity of stirrup can be 10 roads, and diameter is 12mm, and the spacing between stirrup is 50mm; Duck muscle quantity can be 3 roads, and diameter is 20mm.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a deep foundation ditch stage construction support changing structure for use, described support changing structure for use comprises the support replacement beam (3) be positioned between first phase structural beams (1) and the second stage of brace summer (2) structure, it is characterized in that: under described support replacement beam (3), be erected with full hall scaffold (5) and the support scaffolding (4) that support replacement beam (3) conducts oneself with dignity can be carried, and full hall scaffold (5) is separate with support scaffolding (4), reinforcement structure is also provided with in described deep foundation ditch stage construction support changing structure for use, described reinforcement structure comprises the stirrup (6) set up in the structure girder near support replacement beam-ends and the negative reinforcement be located in support replacement beam.
2. deep foundation ditch stage construction support changing structure for use as claimed in claim 1, is characterized in that: described in the support scaffolding (4) be located under support replacement beam (3) be fastener type steel pipe scaffold.
3. deep foundation ditch stage construction support changing structure for use as claimed in claim 1, is characterized in that: described stirrup (6) quantity is 9-12 roads, and diameter is 12mm, and the spacing between stirrup (6) is 50mm.
4. deep foundation ditch stage construction support changing structure for use as claimed in claim 1, is characterized in that: described negative reinforcement is duck muscle (7), and duck muscle (7) quantity is 2-4 roads, and diameter is 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825391.6U CN204435388U (en) | 2014-12-24 | 2014-12-24 | Deep foundation ditch stage construction support changing structure for use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420825391.6U CN204435388U (en) | 2014-12-24 | 2014-12-24 | Deep foundation ditch stage construction support changing structure for use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204435388U true CN204435388U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420825391.6U Expired - Fee Related CN204435388U (en) | 2014-12-24 | 2014-12-24 | Deep foundation ditch stage construction support changing structure for use |
Country Status (1)
| Country | Link |
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| CN (1) | CN204435388U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951643A (en) * | 2018-09-06 | 2018-12-07 | 中国建筑第八工程局有限公司 | The big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span |
| CN110080527A (en) * | 2019-04-22 | 2019-08-02 | 上海建工一建集团有限公司 | The support replacement construction method of the ground-connecting-wall by stages of contrary sequence method Underground Steel room |
| CN111519634A (en) * | 2020-04-30 | 2020-08-11 | 中国一冶集团有限公司 | Temporary support replacing structure and support disassembling and replacing construction method |
| WO2021023246A1 (en) * | 2019-08-07 | 2021-02-11 | 上海建工二建集团有限公司 | Open foundation pit block construction system and method |
-
2014
- 2014-12-24 CN CN201420825391.6U patent/CN204435388U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108951643A (en) * | 2018-09-06 | 2018-12-07 | 中国建筑第八工程局有限公司 | The big region support replacement construction method of Super High deep basal pit basement Core Walls Structure large span |
| CN108951643B (en) * | 2018-09-06 | 2020-06-09 | 中国建筑第八工程局有限公司 | Super high-rise deep foundation pit basement core tube large-span large-area support changing construction method |
| CN110080527A (en) * | 2019-04-22 | 2019-08-02 | 上海建工一建集团有限公司 | The support replacement construction method of the ground-connecting-wall by stages of contrary sequence method Underground Steel room |
| WO2021023246A1 (en) * | 2019-08-07 | 2021-02-11 | 上海建工二建集团有限公司 | Open foundation pit block construction system and method |
| CN111519634A (en) * | 2020-04-30 | 2020-08-11 | 中国一冶集团有限公司 | Temporary support replacing structure and support disassembling and replacing construction method |
| CN111519634B (en) * | 2020-04-30 | 2022-05-10 | 中国一冶集团有限公司 | Support removing and replacing construction method of temporary support replacing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150701 Termination date: 20181224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |