CN203795436U - Combined internal support structure - Google Patents
Combined internal support structure Download PDFInfo
- Publication number
- CN203795436U CN203795436U CN201420187824.XU CN201420187824U CN203795436U CN 203795436 U CN203795436 U CN 203795436U CN 201420187824 U CN201420187824 U CN 201420187824U CN 203795436 U CN203795436 U CN 203795436U
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- CN
- China
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- precast concrete
- concrete members
- support structure
- internal support
- cylinder
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- Expired - Fee Related
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Abstract
A combined internal support structure comprises a plurality of precast concrete members and a plurality of steel sleeves, wherein each precast concrete member is integrally formed by a major-diameter cylinder located in the middle, and two minor-diameter cylinders connected with the two ends of the major-diameter cylinder; the precast concrete members are internally provided with reinforcements; the precast concrete members are sequentially arranged end to end; and the steel sleeves are mounted on the external surfaces of the connected minor-diameter cylinders on the two adjacent precast concrete members or the minor-diameter cylinders connected with the edge of a deep foundation pit in a sleeving manner. The combined internal support structure is formed by sequentially connecting the precast concrete members end to end via the steel sleeves, wherein the precast concrete members are main body parts of the structure and bear load to be borne by a deep foundation pit support, the steel sleeves are used for butting the adjacent precast concrete members, and compared with the traditional internal support structure, the combined internal support structure has the advantages of reasonable structural design, convenience in construction, easiness in dismounting, free length adjustment, short construction period, recycling, low cost, good safety and reliability, and the like.
Description
Technical field
The utility model belongs to deep foundation ditch inner supporting structure and building technology field, particularly relates to a kind of combination inner supporting structure of constructability.
Background technology
Deep foundation pit support inner supporting structure generally adopts two kinds of form of structure both at home and abroad at present: one is concrete inner supporting structure, and another kind is steel structure support structure.But they all exist shortcoming separately, wherein the shortcoming of concrete inner supporting structure is that, from great, material can not be reused, and installation and removal need to be compared with farm labourer's phase.In addition, in the time adopting blasting method to remove support, there will be the problems such as noise, vibration and fragment fly out.In addition, due to concrete support from wiretie, install template, vibrate to the whole process need long period of maintenance, therefore can not accomplish with digging with support, so very unfavorable to controlling deformation of wall; The shortcoming of steel work inner supporting structure is that rigidity is poor, installation node is many, when joint structure is unreasonable or construction wrong and while not meeting designing requirement, often easily cause because of column joints deformation and steel structure support distortion, and then cause foundation ditch to occur excessive horizontal movement, sometimes even because destruction of a node causes the disconnected overall result of a bit destroying.
Summary of the invention
In order to address the above problem, the combination inner supporting structure that the purpose of this utility model is to provide a kind of easy construction, can reuses, cost is low.
In order to achieve the above object, the combination inner supporting structure that the utility model provides comprises multiple precast units and multiple steel bushing; Wherein precast unit forms by being positioned at the large footpath cylinder of middle part and being connected to Qie Yu great footpath, cylindrical two ends, large footpath two coaxial path cylinder one of cylinder, and the inside of precast unit is furnished with the reinforcing bar of longitudinal setting, multiple precast unit head and the tail set gradually; Steel bushing is sleeved on the path cylinder being connected on two contiguous prefabricated concrete components or on the path cylinder external surface being connected with deep foundation ditch edge.
Described steel bushing and the joint of precast unit are filled with pea gravel concreten mortar.
The combination inner supporting structure that the utility model provides is to utilize steel bushing that prefabricated concrete component is end to end and make successively, the main part that wherein precast unit is structure, bear the required load bearing of deep foundation pit support, steel bushing is for the docking between contiguous prefabricated concrete component, compare with traditional inner supporting structure there is reasonable in design, easy construction, readily removable except advantages such as, length regulate arbitrarily, the duration is short, can reuse, cost is low and safe and reliable.
Brief description of the drawings
The combination inner supporting structure structural representation that Fig. 1 provides for the utility model.
Fig. 2 be in Fig. 1 I-I to sectional view.
Fig. 3 be in Fig. 1 II-II to sectional view.
Precast unit structural representation in the combination inner supporting structure that Fig. 4 provides for the utility model.
Steel bushing structural representation in the combination inner supporting structure that Fig. 5 provides for the utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is provided can constructability, the combination inner supporting structure of assembling is elaborated.
As Figure 1-Figure 5, the combination inner supporting structure that the utility model provides comprises multiple precast units 1 and multiple steel bushing 2; Wherein precast unit 1 is made up of with two coaxial path cylinder 4 one of Qie Yu great footpath, two ends cylinder 3 that are connected to large footpath cylinder 3 the large footpath cylinder 3 that is positioned at middle part, and the inside of precast unit 1 is furnished with the reinforcing bar 5 of longitudinal setting, multiple precast unit 1 head and the tail set gradually; Steel bushing 2 is sleeved on the path cylinder 4 being connected on two contiguous prefabricated concrete components 1 or on path cylinder 4 external surfaces that are connected with deep foundation ditch edge.
Described steel bushing 2 is filled with pea gravel concreten mortar with the joint of precast unit 1, to ensure joint quality, thus the globality of increase structure.
The combination inner supporting structure method of preparation and use now the utility model being provided is described below:
Precast unit 1 is made up of large footpath cylinder 3 and path cylinder 4, can first make the cage of reinforcement of large footpath cylinder 3, then adopt precast concrete pipe gallery with cylindrical reinforcement frame and therein the method for concreting be prefabricated into large footpath cylinder 3, and reserve bar splice at the two ends of large footpath cylinder 3, before prefabricated path cylinder 4, should first its cage of reinforcement and the bar splice on large footpath cylinder 3 be welded, and then utilize precast concrete pipe gallery with cylindrical reinforcement frame and therein the method for concreting be prefabricated into path cylinder 4, make concrete component 1 until concrete setting and while reaching predetermined strength.When assembled, should first on steel bushing 2 inwalls, smear sliding agent, then a path cylinder 4 corresponding on two precast units 1 is inserted and can complete splicing from the two ends of steel bushing 2 respectively, in order to ensure the quality of butt-welded side seam, can fill the identical pea gravel concreten mortar of concrete grade that precast unit 1 uses at steel bushing 2 and the joint of precast unit 1.
With time can determine according to the width of deep foundation ditch and the quantity of precast unit 1 in each combination inner supporting structure to change splicing length, can play effective support action.In addition, be to prevent that on it, variable cross-section place stress is concentrated and ftractures in the object of the internal configurations reinforcing bar 5 of precast unit 1, and then increase the rigidity of whole combination inner supporting structure, can more effectively control deformation of wall.
Claims (2)
1. a combination inner supporting structure, is characterized in that: it comprises multiple precast units (1) and multiple steel bushing (2); Wherein precast unit (1) forms by being positioned at the large footpath cylinder (3) of middle part and being connected to coaxial two path cylinders (4) one of Qie Yu great footpath, the two ends cylinder (3) of large footpath cylinder (3), and the inside of precast unit (1) is furnished with the reinforcing bar (5) of longitudinal setting, multiple precast units (1) head and the tail set gradually; Steel bushing (2) is sleeved on the path cylinder (4) being connected on two contiguous prefabricated concrete components (1) or on path cylinder (4) external surface being connected with deep foundation ditch edge.
2. combination inner supporting structure according to claim 1, is characterized in that: described steel bushing (2) is filled with pea gravel concreten mortar with the joint of precast unit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187824.XU CN203795436U (en) | 2014-04-17 | 2014-04-17 | Combined internal support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187824.XU CN203795436U (en) | 2014-04-17 | 2014-04-17 | Combined internal support structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203795436U true CN203795436U (en) | 2014-08-27 |
Family
ID=51377665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420187824.XU Expired - Fee Related CN203795436U (en) | 2014-04-17 | 2014-04-17 | Combined internal support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203795436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869140A (en) * | 2016-01-13 | 2017-06-20 | 中国建筑第八工程局有限公司 | A kind of relay for the compensation of large deep foundation pit bracing members system axle power |
-
2014
- 2014-04-17 CN CN201420187824.XU patent/CN203795436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869140A (en) * | 2016-01-13 | 2017-06-20 | 中国建筑第八工程局有限公司 | A kind of relay for the compensation of large deep foundation pit bracing members system axle power |
| CN106869140B (en) * | 2016-01-13 | 2019-03-08 | 中国建筑第八工程局有限公司 | A kind of relay for the compensation of large deep foundation pit bracing members system axle power |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200417 |