CN201970395U - Large-scale groove style base for pre-stressing hollow slab preparation - Google Patents
Large-scale groove style base for pre-stressing hollow slab preparation Download PDFInfo
- Publication number
- CN201970395U CN201970395U CN201120024686XU CN201120024686U CN201970395U CN 201970395 U CN201970395 U CN 201970395U CN 201120024686X U CN201120024686X U CN 201120024686XU CN 201120024686 U CN201120024686 U CN 201120024686U CN 201970395 U CN201970395 U CN 201970395U
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- force
- worktable
- transmitting pole
- table top
- transfer
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Abstract
The utility model relates to a large-scale groove style base for pre-stressing hollow slab preparation, which comprises transverse connecting beams, a worktable, transfer columns, end posts and steel beams. The transfer columns are arranged on two sides of the worktable, the position of the worktable levels with the centers of the transfer columns. The transverse connecting beam is arranged at the lower parts of the worktable and the transfer columns and between the two transfer columns. The upside of both the worktable and the transfer column is composed of a groove shape. The end posts are arranged at two ends of the transfer column. The transverse connecting beams, the worktable, the transfer columns and the end posts are integrated. The steel beam is fixed between the end posts which are located at the two ends of the base. Anchorage devices are mounted on the steel beams at two ends and used for anchoring steel ends. After the adoption of the large-scale groove style base, the pre-stressing hollow slab preparation and the bridge main construction can be done at the same time, flow process can be done, and the operation period is shortened. The consumption of mould boards, steel bars and concrete can be reduced, namely, building materials can be reduced, and the amount of labour used can be reduced.
Description
Technical field
The utility model relates to civil engineering concrete prefabricated element manufacturing installation, is applicable to the large-sized prestress concrete component that the in-situ precast stretching force is bigger, particularly the prefabricated slot type pedestal of large-sized prestress cored slab.
Background technology
Pre-tensioning system is exactly first tension reinforcing steel bar on pedestal, casting concrete again, and in the cast-in-place prestressed science of bridge building of large span, one of main member form that prefabricated large-span prestressed cored slab is a prestressed reinforced concrete construction.Existing large span pretensioned prestressing cored slab construction, what its manufacture method adopted mainly is pier formula pedestal mode, the prefabricated components that this mode is less for span, stretching force is less still can adopt, but it is excessive for the anti-volume that topples the stretching bed pier to occur for large span, big stretching force member, and, even can't satisfy the stretch-draw requirement to the too high phenomenon of ground processing requirements.
The utility model content
The purpose of this utility model is, by improving present pier formula pedestal, designs a kind of large span, big stretching force prefabricated components of being applicable to and makes pedestal, and then effectively reduce the tensioning equipment cost, realizes that construction is simple, safety, fast, guarantees the prefabricated components quality.
For achieving the above object, the utility model is taked following technical scheme, the prefabricated slot type pedestal of large-sized prestress cored slab, it is by transverse strut, table top, force-transmitting pole, newel post and gooseneck are formed, it is characterized in that, the table top both sides are provided with force-transmitting pole, table position is in the middle part of force-transmitting pole height, be provided with transverse strut between the bottom of table top and force-transmitting pole and two force-transmitting poles, the top of table top and force-transmitting pole constitutes flute profile, and two ends of force-transmitting pole are provided with newel post, transverse strut, table top, force-transmitting pole and newel post are connected as a single entity, gooseneck fixedly is housed between the newel post at pedestal two ends, and the gooseneck at two ends is equipped with ground tackle and anchor bar end.
The beneficial effects of the utility model are, form stress frame by newel post, force-transmitting pole, table top and transverse strut, can make full use of concrete compression strength, effectively improve stretching force, reduce construction costs, guarantee the prefabricated components quality.It has enough intensity, rigidity and stability, satisfies the requirement that antidumping and antiskid move, and easy constructing operation and economic and practical.Utilize force-transmitting pole to bear bigger stretching force, guarantee prestress engineering construction quality and safety.Can produce prestressed component at the scene in enormous quantities, speed of application is fast.
Description of drawings
Fig. 1 is a vertical view of the present utility model.
Fig. 2 be among Fig. 1 A-A to generalized section.
Fig. 3 be among Fig. 1 B-B to generalized section.
Among the figure: 1-transverse strut, 2-table top, 3-force-transmitting pole, 4-newel post, 5-gooseneck, 6-reinforcing bar.
The specific embodiment
Now the utility model is described in further detail in conjunction with the accompanying drawings and embodiments, referring to Fig. 1 and Fig. 2, what illustrated is the prefabricated slot type pedestal of large-sized prestress cored slab with two bathtub constructions arranged side by side, it is by transverse strut 1, table top 2, force-transmitting pole 3, newel post 4 and gooseneck 5 are formed, table top 2 both sides are provided with force-transmitting pole 3, table top 2 positions are in the middle part of force-transmitting pole 3 height, be provided with transverse strut 1 between the bottom of table top 2 and force-transmitting pole 3 and two force-transmitting poles 3, table top 2 constitutes flute profile with the top of force-transmitting pole 3, two ends of force-transmitting pole 3 are provided with newel post 4, transverse strut 1, table top 2, force-transmitting pole 3 and newel post 4 are connected as a single entity, gooseneck 5 fixedly is equipped with in 4 of the newel posts at pedestal two ends, and the gooseneck 5 at two ends is equipped with ground tackle and anchor bar 6 ends.
Referring to Fig. 3, adopting the utility model to carry out pre-stress construction is earlier on pre-stress hollow plate channel type pedestal, presses the stretching control force tension reinforcing steel bar 6 of design code, and temporary fixed with ground tackle, casting concrete again, after treating that concrete reaches certain intensity, loosen reinforcing bar 6, allow the retraction force of reinforcing bar 6, by the cementation between reinforcing bar 6 and concrete, all pass to concrete through certain transmission length, make concrete obtain compressive pre-stress, to improve the crack resistance and the rigidity of concrete component.
The prefabricated slot type pedestal of large-sized prestress cored slab need carry out intensity and stability is calculated.The intensity of newel post 4 and force-transmitting pole 3 is pressed the reinforced concrete structure eccentric compression member and is calculated.Newel post's 4 antidumping moments are made up of newel post 4, gooseneck 5 dead-load moments and part stretch-draw moment.
In the enforcement of the prefabricated slot type pedestal of large-sized prestress cored slab, adopt strength grade of concrete C25, wide 1800MM, length 108M; Force-transmitting pole 3 square-section sizes are respectively 800 * 800 and 400 * 800, and sectional dimension is respectively 1400 * 800 and 700 * 800; Transverse strut 1 sectional dimension is respectively 1000 * 400.Gooseneck 5 adopts the thick anchor plate of 2 I-steel 2I40a and 50MM to form by designing and calculating, on the gooseneck 5 ground tackle is housed, by ground tackle anchor bar 6 ends.
Use the utility model in-situ precast large bridge prestressed cored slab, can carry out simultaneously with the bridge main body structure construction, the parallel pipelining process operation, cycle reduction of erection time, reduce template, reinforcing bar and concrete consumption, can save construction material, reduce the amount of labour used.
Claims (1)
1. the prefabricated slot type pedestal of large-sized prestress cored slab, it is by transverse strut [1], table top [2], force-transmitting pole [3], newel post [4] and gooseneck [5] are formed, it is characterized in that, table top [2] both sides are provided with force-transmitting pole [3], table top [2] position is in the middle part of force-transmitting pole [3] height, be provided with transverse strut [1] between the bottom of table top [2] and force-transmitting pole [3] and two force-transmitting poles [3], table top [2] constitutes flute profile with the top of force-transmitting pole [3], two ends of force-transmitting pole [3] are provided with newel post [4], transverse strut [1], table top [2], force-transmitting pole [3] and newel post [4] are connected as a single entity, gooseneck [5] fixedly is housed between the newel post at pedestal two ends [4], and the gooseneck at two ends [5] is equipped with ground tackle and anchor bar [6] end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120024686XU CN201970395U (en) | 2011-01-26 | 2011-01-26 | Large-scale groove style base for pre-stressing hollow slab preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120024686XU CN201970395U (en) | 2011-01-26 | 2011-01-26 | Large-scale groove style base for pre-stressing hollow slab preparation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201970395U true CN201970395U (en) | 2011-09-14 |
Family
ID=44575500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120024686XU Expired - Lifetime CN201970395U (en) | 2011-01-26 | 2011-01-26 | Large-scale groove style base for pre-stressing hollow slab preparation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201970395U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203801A (en) * | 2013-04-27 | 2013-07-17 | 杨众 | Flat plate type pre-stress tensioning pedestal |
| CN103213190A (en) * | 2013-04-27 | 2013-07-24 | 杨众 | Prestressed girder manufacturing bench formwork |
| CN109577212A (en) * | 2019-01-23 | 2019-04-05 | 中水电第十工程局（郑州）有限公司 | A kind of pretensioned prestressing Precasting Pedestal Construction method |
-
2011
- 2011-01-26 CN CN201120024686XU patent/CN201970395U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203801A (en) * | 2013-04-27 | 2013-07-17 | 杨众 | Flat plate type pre-stress tensioning pedestal |
| CN103213190A (en) * | 2013-04-27 | 2013-07-24 | 杨众 | Prestressed girder manufacturing bench formwork |
| CN103213190B (en) * | 2013-04-27 | 2016-04-06 | 杨众 | Prestressed girder manufactures platform mould |
| CN103203801B (en) * | 2013-04-27 | 2016-08-10 | 杨众 | Flat prestressed stretch-draw pedestal |
| CN109577212A (en) * | 2019-01-23 | 2019-04-05 | 中水电第十工程局（郑州）有限公司 | A kind of pretensioned prestressing Precasting Pedestal Construction method |
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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: 20110914 |