CN206256392U - Cradle construction reverse drawing prepressing device in a kind of water - Google Patents
Cradle construction reverse drawing prepressing device in a kind of water Download PDFInfo
- Publication number
- CN206256392U CN206256392U CN201621322384.XU CN201621322384U CN206256392U CN 206256392 U CN206256392 U CN 206256392U CN 201621322384 U CN201621322384 U CN 201621322384U CN 206256392 U CN206256392 U CN 206256392U
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- steel
- stress distribution
- hanging basket
- fixture
- jack
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Abstract
The utility model discloses cradle construction reverse drawing prepressing device in a kind of water, Hanging Basket bed die is fixed in the beam body of pier shaft upper end, pier shaft lower end is fixed on operation platform, operation platform lower section is provided with steel-pipe pile, Hanging Basket bed die top is provided with stress distribution device and steel-pipe pile and is provided with fixing device of casting anchor, jack is provided with the stress distribution device, jack is connected with steel strand wires, the fixing device of casting anchor include being horizontally set on steel-pipe pile in I-shaped or H-shaped fixture and the anchoring distribution beam that is longitudinally disposed at below fixture, the steel strand wires other end wears jack, stress distribution device, operation platform, fixture, it is connected with anchoring distribution beam.It is the utility model simple structure, easy construction, safe, improve operating efficiency, shorten squeeze time, reduce financial cost etc., solve tradition carries out piling prepressing on Hanging Basket, it is dangerous it is big, the problems such as the ballast time is long, construction cost is high.
Description
Technical field
The utility model is related to a kind of cantilever cradle construction reverse drawing prepressing device, and in particular to cradle construction is anti-in a kind of water
Draw prepressing device.
Background technology
With the fast development of China's economic, road and bridge construction also achieve quickly development, large-span prestressed
Concrete continuous girder bridge is across the relatively common bridge type such as zanjon, rivers, Hu Hai, and in large-span continuous girder bridges construction generally
Using Hanging Basket cantilever-construction, the construction method be since bridge pier symmetrically, constantly cantilevered out spreading a kind of construction method, hang
Arm construction method is generally divided into cast-in-place cantilever method and erection by protrusion, and cast-in-place cantilever method is in the symmetrical poured-in-place paragraph by paragraph in bridge pier both sides
Concrete, after concrete reaches some strength, tensioned prestressing bar, mobile equipment, template continue a kind of method constructed；It is outstanding
Arm assembly rule is, by prefabricated subsection block part, sections to be symmetrically installed successively from bridge pier both sides, and tensioned prestressing bar makes cantilever continuous
Spreading, until a kind of construction method closed up.And the factor such as landform that acceptor's bridge location is put influences, the construction of Hanging Basket cantilever pouring is mesh
The more commonly used form of construction work, after cradle assembly is finished, should carry out precompressed experiment in preceding large-span continuous girder bridges construction, so as to
The inelastic deformation of Hanging Basket is eliminated as much as, so that the safety and stability to Hanging Basket confirms.During pre-compression test, loading
No. 0 block load of the worst beam section of Hanging Basket stress carries out equivalent loading in construction, determines the amount of deflection produced under load actions at different levels
Rod member internal force is controlled with the lower Hanging Basket of peak load effect, the amount of deflection produced according to Hanging Basket under load actions at different levels draws the lotus of Hanging Basket
Load-sag curve, for the Linear Control of cantilever construction provides reliable foundation.
Traditional pre-compression test is preloading, commonly uses sandbag or water bag etc., and sandbag is dressed up into equiponderant specification,
Prefabricating load typically takes No. 0 the 110% of the weight of block and carries out precompressed, and the method Job readiness time is long, loading difficulty is big, preloading
Height is high, experiment Meteorological is high, the cycle is long, and in process of the test, once pinpoint the problems, exist needs unloading but can not and
When the drawbacks of unload.
Utility model content
The utility model purpose is to provide cradle construction reverse drawing prepressing device in a kind of water.
Based on above-mentioned purpose, the utility model takes following technical scheme：
A kind of cradle construction reverse drawing prepressing device in water, Hanging Basket bed die is fixed in the beam body of pier shaft upper end, pier shaft lower end
It is fixed on operation platform, operation platform lower section is provided with steel-pipe pile, Hanging Basket bed die top is provided with stress distribution device and steel pipe
Fixing device of casting anchor is provided with stake, jack is provided with the stress distribution device, jack is connected with steel strand wires, described
Fixing device of casting anchor include being horizontally set on steel-pipe pile in I-shaped or H-shaped fixture and being longitudinally disposed under fixture
The anchoring distribution beam of side, the steel strand wires other end wears jack, stress distribution device, operation platform, fixture, is distributed with anchoring
Beam is connected.
The stress distribution device includes placing side by side several stress distribution longerons for being arranged on Hanging Basket bed die and positioned at stress
Stress distribution crossbeam above distribution longeron, jack is fixed on stress distribution crossbeam, is evenly distributed on beneficial to reverse drawing stress
On Hanging Basket bed die.
The steel strand wires are in 90 ° with operation platform angle.
The fixture is I-steel, and fixture notch is fixed on steel-pipe pile down.
Compared with prior art, the utility model has the advantages that：
1st, the utility model is realized to the pre- of Hanging Basket bed die by the steel-pipe pile and Hanging Basket bed die below itself operation platform
Pressure experiment, it is ensured that whole Hanging Basket bed die and steel-pipe pile uniform force, it is simple structure, easy construction, safe, improve work
Efficiency, shortens squeeze time, reduces financial cost etc., and solve tradition carries out piling prepressing on Hanging Basket, it is dangerous it is big,
The problems such as ballast time is long, construction cost is high.
2nd, fixing device of casting anchor is loaded in by anchoring distribution beam load-bearing beneficial to reverse drawing stress and steel-pipe pile is presented on fixture
On, form whole operation platform stress.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the partial schematic diagram of A in Fig. 1；
Wherein：1st, beam body；2nd, hanging basket main truss；3rd, jack；4th, stress distribution crossbeam；5th, stress distribution longeron；6th, hang
Basket bed die；7th, steel strand wires；8th, fixture；9th, distribution beam is anchored；10th, steel-pipe pile；11st, operation platform.
Specific embodiment
Cradle construction reverse drawing prepressing device in a kind of water, as shown in Figure 1,2 and 3, the sidepiece of Hanging Basket bed die 6 one is fixed on pier shaft
On the bottom of beam body 1 of upper end, the top of beam body 1 is fixed in the other side of Hanging Basket bed die 6 by hanging basket main truss 2, and pier shaft lower end is consolidated
Due on operation platform 11, the lower section of operation platform 11 is provided with steel-pipe pile 10, the top of Hanging Basket bed die 6 be provided with stress distribution device and
Be provided with fixing device of casting anchor on steel-pipe pile 10, the stress distribution device include placing side by side be arranged at it is several on Hanging Basket bed die 6
Stress distribution longeron 5 and the stress distribution crossbeam 4 positioned at the top of stress distribution longeron 5, stress distribution longeron 5 are horizontal with stress distribution
Beam 4 is mutually perpendicular to, and jack 3 is fixed on stress distribution crossbeam 4, and jack 3 is provided with the stress distribution device, very heavy
Top 3 is connected with steel strand wires 7, and the fixing device of casting anchor includes being horizontally set at consolidating in I-shaped or H-shaped on steel-pipe pile 10
Determine part 8 and be longitudinally disposed at the anchoring distribution beam 9 of the lower section of fixture 8, the fixture 8 is I-steel, and the notch of fixture 8 is down
Steel-pipe pile 10 is fixed on, the other end of steel strand wires 7 wears jack 3, stress distribution device, operation platform 11, fixture 8, with anchor
Gu distribution beam 9 is connected, the steel strand wires 7 are in 90 ° with the angle of operation platform 11.
When the utility model carries out reverse drawing precompressed to Hanging Basket bed die 6, Hanging Basket is first installed, then reverse drawing prepressing device is installed,
Equipment proceeds by tensioning loading after installing, loading is carried out according to hierarchical loading, from 0% -10% -30% -70% -100% -
110%, the change of support cantilever end amount of deflection is recorded step by step.During loading test, loading is by the worst beam section lotus of Hanging Basket stress in construction
It is loaded into going equivalent loading, determines under load actions at different levels, the lower Hanging Basket bed die 65 of amount of deflection and peak load effect of Hanging Basket bed die 6 is each
The internal force of control piece.According to the amount of deflection that Hanging Basket under load actions at different levels is produced, the load versus deflection of Hanging Basket is drawn, be cantilever
The Linear Control of construction provides reliable foundation.Load shedding is equally taken during unloading.
The utility model realizes the pre-compression test to Hanging Basket bed die 6, structure by itself operation platform 11 and Hanging Basket bed die 6
Simply, easy construction, safe, improves operating efficiency, shortens squeeze time, reduces financial cost etc., solves
Tradition carries out piling prepressing on Hanging Basket, it is dangerous it is big, the problems such as the ballast time is long, construction cost is high.
Claims (4)
1. a kind of cradle construction reverse drawing prepressing device in water, Hanging Basket bed die is fixed in the beam body of pier shaft upper end, and pier shaft lower end is consolidated
Due on operation platform, operation platform lower section is provided with steel-pipe pile, it is characterised in that Hanging Basket bed die top is provided with stress distribution dress
Put and fixing device of casting anchor is provided with steel-pipe pile, jack is provided with the stress distribution device, jack is connected with steel
Twisted wire, the fixing device of casting anchor include being horizontally set on steel-pipe pile in I-shaped or H-shaped fixture and longitudinally disposed
Anchoring distribution beam below fixture, the steel strand wires other end wears jack, stress distribution device, operation platform, fixture,
It is connected with anchoring distribution beam.
2. cradle construction reverse drawing prepressing device in water as claimed in claim 1, it is characterised in that the stress distribution device bag
Include to place side by side and be arranged at the several stress distribution longerons on Hanging Basket bed die and the stress distribution crossbeam above stress distribution longeron,
Jack is fixed on stress distribution crossbeam.
3. cradle construction reverse drawing prepressing device in water as claimed in claim 2, it is characterised in that the steel strand wires are flat with construction
Platform angle is in 90 °.
4. cradle construction reverse drawing prepressing device in water as claimed in claim 3, it is characterised in that the fixture is I-shaped
Steel, fixture notch is fixed on steel-pipe pile down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322384.XU CN206256392U (en) | 2016-12-05 | 2016-12-05 | Cradle construction reverse drawing prepressing device in a kind of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322384.XU CN206256392U (en) | 2016-12-05 | 2016-12-05 | Cradle construction reverse drawing prepressing device in a kind of water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206256392U true CN206256392U (en) | 2017-06-16 |
Family
ID=59026783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621322384.XU Active CN206256392U (en) | 2016-12-05 | 2016-12-05 | Cradle construction reverse drawing prepressing device in a kind of water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206256392U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056556A (en) * | 2017-12-29 | 2018-12-21 | 中铁二局第工程有限公司 | A kind of Hanging Basket trussing entirety prepressing structure and preloading method |
-
2016
- 2016-12-05 CN CN201621322384.XU patent/CN206256392U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109056556A (en) * | 2017-12-29 | 2018-12-21 | 中铁二局第工程有限公司 | A kind of Hanging Basket trussing entirety prepressing structure and preloading method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |