CN201786040U - Temporary supporting structure suitable for reinforced concrete plate beam - Google Patents
Temporary supporting structure suitable for reinforced concrete plate beam Download PDFInfo
- Publication number
- CN201786040U CN201786040U CN2010205498612U CN201020549861U CN201786040U CN 201786040 U CN201786040 U CN 201786040U CN 2010205498612 U CN2010205498612 U CN 2010205498612U CN 201020549861 U CN201020549861 U CN 201020549861U CN 201786040 U CN201786040 U CN 201786040U
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- column
- reinforced concrete
- journal stirrup
- row
- girder
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Abstract
The utility model relates to a temporary supporting structure suitable for reinforced concrete plate beam, which is expected to make a supported reinforced concrete structure stable and non-deformable, so as to ensure the functions of the supported objects. Furthermore, the supporting structure is convenient for construction. The technical solution proposed in the utility model is that a pair of lugs is fixed on the left and right side of external columns, two H-steel girders right next to the internal columns are vertically arranged between the lugs and a side wall, a pair of lugs is fixed above the girders and on the left and right side of the internal columns, and a fixedly welded screw jack is arranged between and supported by lugs on the internal columns and the girders. The supporting structure can be used to temporarily support plate-beam column structures which are reserved but required partial dismounting in hydraulic and water power technologically upgrading projects.
Description
Technical field
The utility model relates to a kind of temporary support structure that is applicable to plate girder of reinforced concrete, and being used in the water conservancy and hydropower technological transformation project process plate-girder rod structure of partly removing for needs and remaining provides effectively interim and support.
Background technology
In water conservancy and hydropower technological transformation process, often need original reinforced concrete structure is carried out the dismounting work of part, in the process of a part of structure of this dismounting, broken the balance of original structure, make structure become redundant structure by original statically determinate structrue, therefore for this section before new structure forms in construction period, guarantee to keep the stable of structure and do not produce big deformation, influence function of use in the future, it is very necessary designing a kind of highly effective temporary support structure.
Summary of the invention
The technical problems to be solved in the utility model is: at the problems referred to above, a kind of temporary support structure that is applicable to plate girder of reinforced concrete is provided, it can be guaranteed the stable of supported reinforced concrete structure and can not produce deformation, and then guarantee the function of use of supported body, and the construction of this braced structures is also easier.
The technical scheme that the utility model adopted is: a kind of temporary support structure that is applicable to plate girder of reinforced concrete, have inside and outside two row's concrete columns, the inboard and the abutment wall of row's column are connected as a single entity wherein, inside and outside two row's columns support concrete slab by the upright concrete beam of their top shelf, it is characterized in that: be fixed with a pair of journal stirrup on the described left and right sides face that effluxes column, and arrange the i iron girder steel of column in the upright twice of level frame are close between this is to journal stirrup and abutment wall; Simultaneously above the described girder steel, also be fixed with a pair of journal stirrup on the left and right side of interior row's column, and in this between journal stirrup on row's column and the girder steel support the dead screw jack of weldering is arranged.
Described journal stirrup is welded by channel-section steel and two block plates, and its cross section is at right angles trapezoidal; Every pair of journal stirrup is fixed on this column the pre-stressed bolt that is through in the column by one group.
Be connected with tie-beam between the described twice girder steel.
Between the described twice girder steel, near the position frame of interior row's column is upright crossbeam is arranged one, and from bottom to top arrange steel column and jack above the crossbeam successively at this, described concrete beam is supported by billet in the top of this jack.
Between described girder steel and the abutment wall by the earth anchor bolt.
The beneficial effects of the utility model are: the journal stirrup that is provided with on column has adopted prestressing technique, substantially do not destroy original reinforced concrete structure, can remove journal stirrup after the use, the prestressing force that needs can come out by the vertical force inverse that journal stirrup will bear, and structural reliability is strong.Adopted screw jack pair superstructure to support, can apply pre-support force, to prevent that braced structures from returning power or to lose support effect or cause the superstructure distortion because of the substructure amount of deflection.
Description of drawings
Fig. 1 is the plan view that needs the slab and girder that supports in the present embodiment.
Fig. 2 is the structural representation of present embodiment.
Fig. 3 is that the A-A of Fig. 2 is to sectional view.
Fig. 4 is that the F-F of Fig. 3 is to sectional view.
Fig. 5 is that the B-B of Fig. 2 is to sectional view.
Fig. 6 is that the E-E of Fig. 5 is to sectional view.
Fig. 7 is that the C-C of Fig. 2 is to sectional view.
Fig. 8 is that the D-D of Fig. 7 is to sectional view.
The specific embodiment
Certain powerhouse of hydropower station needs the most of plate-girder of generator floor is removed in the technological transformation process, only kept as shown in Figure 1 structure: row's column 2 in it comprises, efflux the upstream abutment wall 15 of column 5 and two row's column upstream sides, should be supported with concrete slab 12 by the upright concrete beam 11 of their top shelf by inside and outside two row's columns, and the inboard of interior row's column 2 and another stifled abutment wall 10 are connected as a single entity.But because design and construction need, now must temporarily remove the foundation structure of interior row's column 2 bottoms, so, interior row's column 2 is maked somebody a mere figurehead, for guaranteeing the steadiness of top concrete slab girder construction, need in two years of construction period, support effectively temporarily.
At the problems referred to above, present embodiment has adopted a kind of temporary support structure as shown in Figure 2: effluxing a pair of journal stirrup 1 of fixed installation on the left and right sides face of column 5, and between this is to journal stirrup and abutment wall 10 the upright twice level of frame i iron girder steel 4---girder steel 4 one ends are supported on the journal stirrup 1, the other end is fixed on the abutment wall 10 by earth anchor bolt 14, and twice girder steel 4 is close to the left and right side of interior row's column 2.And above the described girder steel, also be fixed with a pair of journal stirrup 1 on the left and right side of interior row's column 2, and in this row on the column journal stirrup 1 and girder steel 4 between be supported with screw jack 3, jack 3 withstands and apply certain prestressing force with journal stirrup 1, and is for preventing jack Hui Li, that its weldering is dead.In addition, in order to prevent twice girder steel 4, between two girder steels 4, also be connected with tie-beam 9 near the position that effluxes column 5 to lateral sliding.
The above-mentioned concrete structure that effluxes column 5 upper journals 1 is as shown in Figure 3: it is welded by two block plate 1-2 of channel-section steel 1-1 and this channel-section steel top and sidepiece, and its cross section is at right angles trapezoidal.The concrete structure of row's column 2 upper journals 1 as shown in Figure 5 in above-mentioned: it is welded by two block plate 1-2 of channel-section steel 1-1 and this channel-section steel bottom and sidepiece, and its cross section is at right angles trapezoidal.As Fig. 4, shown in Figure 6, every pair of journal stirrup 1 is fixed on this column the pre-stressed bolt 13 that is through in the column (effluxing column or interior row's column) by one group.During enforcement, need pre-stressed bolt 13 is applied enough prestressing force, make the certain compressive pre-stress of generation between journal stirrup and the column, under the frictional resistance effect between journal stirrup and the column concrete, journal stirrup has just possessed certain ability of bearing Vertical Load.Reference numeral 16 among Fig. 5 is post excavation face.
In addition,,, between twice girder steel 4, set up one crossbeam 6 again in order to increase the effect of support as Fig. 7, shown in Figure 8, the top steel column 7 and the jack 3 from bottom to top arranged successively of this crossbeam 6, concrete beam 11 is supported by billet 8 in the top of this jack.
Claims (5)
1. temporary support structure that is applicable to plate girder of reinforced concrete, have inside and outside two row's concrete columns, the inboard and the abutment wall (10) of row's column (2) are connected as a single entity wherein, inside and outside two row's columns support concrete slab (12) by the upright concrete beam (11) of their top shelf, it is characterized in that: be fixed with a pair of journal stirrup (1) on the described left and right sides face that effluxes column (5), and arrange the i iron girder steel (4) of column (2) in the upright twice of level frame are close between this is to journal stirrup and abutment wall (10); Simultaneously on the left and right side of the top of described girder steel (4), interior row's column (2), also be fixed with a pair of journal stirrup (1), and in this between journal stirrup on row's column and the girder steel (4) support have and weld dead screw jack (3).
2. the temporary support structure that is applicable to plate girder of reinforced concrete according to claim 1 is characterized in that: described journal stirrup (1) is welded by channel-section steel (1-1) and two block plates (1-2), and its cross section is at right angles trapezoidal; Every pair of journal stirrup (1) is fixed on this column (2,5) the pre-stressed bolt (13) that is through in the column (2,5) by one group.
3. the temporary support structure that is applicable to plate girder of reinforced concrete according to claim 1 and 2 is characterized in that: be connected with tie-beam (9) between the described twice girder steel (4).
4. the temporary support structure that is applicable to plate girder of reinforced concrete according to claim 1 and 2, it is characterized in that: between the described twice girder steel (4), one crossbeam (6) arranged near the position frame of interior row's column (2) is upright, and from bottom to top arrange steel column (7) and jack (3) above the crossbeam successively at this, described concrete beam (11) is supported by billet (8) in the top of this jack.
5. the temporary support structure that is applicable to plate girder of reinforced concrete according to claim 1 and 2 is characterized in that: fixing by earth anchor bolt (14) between described girder steel (4) and the abutment wall (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205498612U CN201786040U (en) | 2010-09-28 | 2010-09-28 | Temporary supporting structure suitable for reinforced concrete plate beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205498612U CN201786040U (en) | 2010-09-28 | 2010-09-28 | Temporary supporting structure suitable for reinforced concrete plate beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786040U true CN201786040U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205498612U Expired - Lifetime CN201786040U (en) | 2010-09-28 | 2010-09-28 | Temporary supporting structure suitable for reinforced concrete plate beam |
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| Country | Link |
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| CN (1) | CN201786040U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993754A (en) * | 2014-04-22 | 2014-08-20 | 江苏永泰建造工程有限公司 | Pre-stress reinforcing device of basement roof temporary overloads and implementation method of pre-stress reinforcing device |
| CN108678423A (en) * | 2018-08-06 | 2018-10-19 | 建研科技股份有限公司 | Vertical conversion bearing structure is demolishd in reverse direction of reinforced concrete structure |
| CN110130670B (en) * | 2019-04-10 | 2021-04-06 | 太原理工大学 | Reinforced concrete upper and lower bracket type temporary support system and construction method thereof |
-
2010
- 2010-09-28 CN CN2010205498612U patent/CN201786040U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103993754A (en) * | 2014-04-22 | 2014-08-20 | 江苏永泰建造工程有限公司 | Pre-stress reinforcing device of basement roof temporary overloads and implementation method of pre-stress reinforcing device |
| CN108678423A (en) * | 2018-08-06 | 2018-10-19 | 建研科技股份有限公司 | Vertical conversion bearing structure is demolishd in reverse direction of reinforced concrete structure |
| CN108678423B (en) * | 2018-08-06 | 2023-12-08 | 中建研科技股份有限公司 | Vertical conversion supporting structure is demolishd in reverse direction to reinforced concrete structure |
| CN110130670B (en) * | 2019-04-10 | 2021-04-06 | 太原理工大学 | Reinforced concrete upper and lower bracket type temporary support system and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |