CN208563119U - A kind of prepressing device of cast-in-place beam bracket - Google Patents
A kind of prepressing device of cast-in-place beam bracket Download PDFInfo
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- CN208563119U CN208563119U CN201820832286.3U CN201820832286U CN208563119U CN 208563119 U CN208563119 U CN 208563119U CN 201820832286 U CN201820832286 U CN 201820832286U CN 208563119 U CN208563119 U CN 208563119U
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Abstract
This application provides a kind of prepressing devices of cast-in-place beam bracket, the device includes steel strand wires, anchorage, jack, precompressed distribution beam, load-bearing girder, pre-buried anchorage, precompressed distribution beam is arranged on cast-in-place beam bottom mother plate, jack is arranged between precompressed distribution beam and load-bearing girder, the upper end of steel strand wires is anchored at the top of load-bearing girder by anchorage, the lower end of steel strand wires is anchored in concrete bearing platform by pre-buried anchorage, and each device is combined together to form an entirety.Start jack, so that jack gives load-bearing girder one active force, because load-bearing girder can not be moved upwards by steel strand wires fixation, it is set to give jack one opposition, jack passes through precompressed distribution beam again and the power is loaded on cast-in-place beam bracket, to complete the precompressed to cast-in-place beam bracket.
Description
Technical field
This application involves prepressing device field more particularly to a kind of prepressing devices of cast-in-place beam bracket.
Background technique
In the construction process, the falsework cast-in-place for co-host reinforced concrete works needs before using to it
It carries out precompressed and verifies intensity, rigidity, stability and the elastic deformation for obtaining bracket of bracket for eliminating inelastic deformation
Amount.
Existing pre-pressing bracket mode is sandbag piling prepressing, first installs temporary support, bed die, side form before bed die installation
Start pre-pressing bracket after installation, sandbag is weighed by bag, if special messenger weighs, special messenger's record, load weighted sandbag is with one bag one of tower crane
Bag is transported on bracket, needs to send special messenger to observe the situation of change of bracket, at any time using waterproof measure in sandbag after transporting well
Record needs hierarchical loading, and surface subsidence, the elasticity of bracket and inelastic deformation specific value are calculated after settlement stability unloading and is
How much, and measure the springback capacity of a measuring point comprehensively after unloading, according to the corresponding elasticity of each point, inelastic deformation numerical value and design
Beam body amount of deflection adjusts the elevation of template, is adjusted, is reinforced by cradle top micromatic setting.
It is sufficiently bulky with sandbag preloading since the severe of sand is much smaller than the severe of armored concrete, be difficult completely by
It is laid according to Cast-in-situ Beam cross-sectional distribution situation, and laying is in disorder, the Cast-in-situ Beam lotus of specification or design requirement is not achieved in general precompressed
1.2 times carried, or even are all extremely difficult to 1 times, on the water or when the mountain area segment Gao Dun cantilever casting beam 0# beam section is constructed, sandbag
Transport and lifting more suffering.
Utility model content
This application provides a kind of prepressing devices of cast-in-place beam bracket, including steel strand wires, anchorage, jack, precompressed distribution
Beam, load-bearing girder, pre-buried anchorage, the precompressed distribution beam are arranged on cast-in-place beam bottom mother plate, and the jack is arranged described
Between precompressed distribution beam and the load-bearing girder, the upper end of the steel strand wires is anchored at the load-bearing girder by the anchorage
The lower end at top, the steel strand wires is anchored in concrete bearing platform by pre-buried anchorage.
Optionally, the peak load that the anchorage is born is at least 2 times of concrete load.
Optionally, gasket is provided between the anchorage and the load-bearing girder.
Optionally, gasket is provided between the jack and the load-bearing girder.
Optionally, the card slot for being clamped the jack is provided in the precompressed distribution beam.
Optionally, the precompressed distribution beam is Two bors d's oeuveres I-steel or Two bors d's oeuveres C-type steel.
Optionally, the load-bearing girder is Two bors d's oeuveres I-steel or Two bors d's oeuveres C-type steel.
Optionally, the I-steel selects 25 type I-steel.
The technical scheme provided by the application includes following advantageous effects:
This application provides a kind of prepressing devices of cast-in-place beam bracket, including steel strand wires, anchorage, jack, precompressed distribution
Beam, load-bearing girder, pre-buried anchorage, the precompressed distribution beam are arranged on cast-in-place beam bottom mother plate, and jack setting is distributed in precompressed
Between beam and load-bearing girder, the upper end of steel strand wires is anchored at the top of load-bearing girder by anchorage, and the lower end of steel strand wires passes through pre-
Anchorage is buried to be anchored in concrete bearing platform, each device is combined together to form an entirety, when in use, start jack,
Since what the top and bottom of jack was all accepted has steel plate, and fixed with steel strand wires, so when acting on jack,
The internal screw of jack is pushed down by load-bearing girder, two-way interaction, so that load-bearing girder gives jack one reversed work
Firmly, so that the opposition of jack is applied in precompressed distribution beam, precompressed distribution beam gives Cast-in-situ Beam bottom plate power again
Effect, so that it may achieve the effect that precompressed, each component gravity of the device is small, is convenient for carrying and transports, can be according to the need of precompressed
It selects required quantity, precompressed distribution beam and load-bearing girder hardness and load bearing stength big, can give pre- needed for Cast-in-situ Beam
Effect is pressed, easy to disassemble after use and storage is time saving and energy saving.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the prepressing device of cast-in-place beam bracket provided by the embodiments of the present application.
Fig. 2 is the prepressing device top enlarged structure schematic diagram of cast-in-place beam bracket provided by the embodiments of the present application.
Fig. 3 is the structural schematic diagram of the prepressing device of the cast-in-place beam bracket of another kind provided by the embodiments of the present application.
Description of symbols:
1, steel strand wires；2, anchorage；3, jack；4, card slot；5, precompressed distribution beam；6, gasket；7, load-bearing girder；8, pre-buried
Anchorage；9, concrete bearing platform.
Specific embodiment
This application provides a kind of prepressing device of cast-in-place beam bracket, which includes: steel strand wires 1, anchorage 2, jack
3, precompressed distribution beam 5, load-bearing girder 7, pre-buried anchorage 8.
Steel strand wires 1 are used to for whole device being fixed on cast-in-place beam bracket, and the upper end of steel strand wires 1 is fixed with anchorage 2, and steel twists
Longitudinally through whole device, the lower end of steel strand wires 1 is anchored in concrete bearing platform 9 line 1 by pre-buried anchorage 8, and when installation is in
Tension, convenient for jack 3 act on when, steel strand wires 1 be kept fixed it is constant so that steel strand wires 1 will not generate deformation, shadow
Ring the use of whole device.
Optionally, steel strand wires 1 include prestress wire 1, galvanized strand wires 1 and stainless steel strand wires 1, and the application selects pre-
Prestress steel strand 1 is as the part for being used to fix whole device in the application, after both ends are fixed with anchorage 2, makees in jack 3
Used time generates the effect of power to it, because it is with stretching force, so will not be pulled off, and pulling force after by crunch
Be it is limited, deformation is also in the range of stretching, so that jack 3 is applied to again to a certain degree afterwards can generate load-bearing girder 7
Reaction force, will not be because of unlimited tension, so that 3 active force of jack is married again less than on load-bearing girder 7, so that being not achieved
The purpose of the cast-in-place beam bracket of precompressed.
Anchorage 2 is for connecting steel strand wires 1 and being fixed up with whole device, and anchorage 2 is connect with load-bearing girder 7, the two
Between be provided with gasket 6, active force is excessive between anchorage 2 and load-bearing girder 7 in order to prevent, causes to damage to the two.Anchorage 2 will
1 upper end of steel strand wires anchoring across the intermediate position of load-bearing girder 7 is got up, so that whole device is in a fixed position, is prevented
Only in use, because the effect of jack 3 is so that load-bearing girder 7 and precompressed distribution beam 5 are subjected to displacement after stress, no
Conducive to the precompressed to cast-in-place beam bracket.
Optionally, anchorage 2 includes round anchorage, flat anchorage and bonds formula anchorage, and the application selects round anchorage conduct
Steel strand wires 1 can be firmly fixed to middle position from anchor performance with good by the fixation device of the device, be stablized
The center of whole device avoids when in use, after starting jack 3, when carrying out precompressed to steel strand wires 1, slips steel strand wires 1
The phenomenon that generate, the stability of the device can be made more preferable.
Jack 3 be used in the present apparatus in effect be give load-bearing girder 7 provide an active force, promote load-bearing girder 7 to
3 reaction force of jack is given, so that the pressure of jack 3 acts in precompressed distribution beam 5, because the setting of precompressed distribution beam 5 exists
On cast-in-place beam bracket, the active force of precompressed distribution beam 5 will be loaded on cast-in-place beam bracket, be realized to the pre- of cast-in-place beam bracket
Pressure.
Optionally, jack 3 includes centre-hole jack 3, separating jack 3, Horizontal jack 3, claw jack
3, synchronous jack 3, integral type jack 3, motor-driven jack 3 and slim jack 3, the application select centre-hole jack 3
The part of initial active force is provided as the present apparatus, centre-hole jack 3 is mainly used for group anchor integral tension, utilizes Double-hydraulic
The double acting of cylinder tensioned prestressing bar and press anchorage 2, the jack 3 is easy to operate, reliable performance, and maximum saving steel strand wires
1, steel strand wires 1 pass through the middle position of jack 3, load-bearing girder 7 and precompressed distribution beam 5 are connected, collective effect, with existing
The effect that beam bracket generates power is poured, completes precompressed to cast-in-place beam bracket, 1 beam end iron wire of steel strand wires is first added bundle by when installation
Jack 3 can be lifted and is set on steel strand wires 1 by bundle, and by 3 drive end bearing bracket of jack bearing muzzle in the outside of limit plate,
At this moment jack 3 can same shaft assignment.
Precompressed distribution beam 5 is used for the effect of supporting part component, avoids whole device excessive to cast-in-place beam bracket active force, makes
Serious at Cast-in-situ Beam bracket deformation, the effect that precompressed is not only not achieved has an effect on the normal use of cast-in-place beam bracket, then this setting
Precompressed distribution beam 5, when for observing to 3 loading effect power of jack, load-bearing girder 7 marries again the reaction force of jack 3
When in precompressed distribution beam 5, sedimentation deformation is observed according to the deformation quantity of precompressed distribution beam 5, so that the sedimentation of cradle top is observed,
If cradle top settlement observation point 12 hours settling amount average value is greater than 2mm, stop applying active force to jack 3,
Again checking computations and safety detection are carried out to bracket, finds out reason and bracket is handled, with the device to cast-in-place boom support
Precompressed is carried out, the precompressed to Cast-in-situ Beam can be quickly completed, is avoided and is carried out the cast-in-place boom support of precompressed with sandbag and need to sandbag
It repeats to load, heavy workload wastes time.
Optionally, the upper end of precompressed distribution beam 5 is provided with card slot 4, for being clamped jack, avoids using jack
When, it is subjected to displacement, influences the use of whole device.
Load-bearing girder 7 is passed through this reaction force pre- in this application for generating reversed active force to jack 3
Pressure distribution beam 5 is loaded on cast-in-place beam bracket, completes the precompressed to cast-in-place beam bracket, the top center position of load-bearing girder 7 is matched
Be equipped with anchorage 2, the steel strand wires 1 which passes through load-bearing girder 7 are anchored at the top of load-bearing girder 7, load-bearing girder 7 with
Gasket 6 is provided between anchorage 2, active force is excessive between anchorage 2 and load-bearing girder 7 in order to prevent, causes to damage to the two.
Optionally, Two bors d's oeuveres I-steel or Two bors d's oeuveres C-type steel can be selected in precompressed distribution beam 5 and load-bearing girder 7, and the application selects
Stress supporting body of the 25 type I-steel as the application, since its cross sectional shape is reasonable, they can make steel higher play effect
Can, bearing capacity is improved, the precompressed distribution beam 5 and load-bearing girder 7 in the application require very strong bearing capacity, work as jack
3 when receiving active force, and just load-bearing girder 7 generates powerful opposition when meeting, which could be made by jack 3
It uses in precompressed distribution beam 5, which is loaded on cast-in-place beam bracket by precompressed distribution beam 5 again, completes to the pre- of cast-in-place beam bracket
Pressure, achievees the purpose that precompressed.If 1.2 times of Cast-in-situ Beam load are not achieved in precompressed distribution beam 5 and the bearing capacity of load-bearing girder 7,
It is just unable to complete the precompressed to cast-in-place beam bracket, so the application selects carrying of the stronger I-steel of bearing capacity as power
Body, upper and lower surfaces, surface area is big, and power is uniformly dispersed, and avoids and concentrates stress to cast-in-place beam bracket certain point, so that holding at this
It is easily damaged, protective effect is played to bracket.
Pre-buried anchorage 8 anchors to the other end of steel strand wires 1 in concrete bearing platform 9, so that steel strand wires 1 pass through whole device
With cast-in-place beam bracket, device provided by the present application and cast-in-place beam bracket are combined into an entirety, it is fixed up and down, it realizes to this
Device is preferably fixed, because steel strand wires 1 are the centres for being threaded through each section, so that whole structure is more stable.
Optionally, pre-buried anchorage 8 includes round anchorage, flat anchorage and bonds formula anchorage, and the application selection bonds formula anchor
Has fixation device as the device, suitable for component ends design stress greatly or the case where end space is restricted, it is pre-
It is embedded in concrete, arranges as needed, after concrete setting to design strength, carrying out tensioning, the end of steel strand wires 1 is firm
It is fixed, stablize the center of whole device, avoid when in use, after starting jack 3, when carrying out precompressed to steel strand wires 1, makes steel
The phenomenon that twisted wire 1 slips generates, and the stability of the device can be made more preferable.
This application provides a kind of prepressing devices of cast-in-place beam bracket, including steel strand wires, anchorage, jack, precompressed distribution
Beam, load-bearing girder, pre-buried anchorage, the precompressed distribution beam are arranged on cast-in-place beam bottom mother plate, and jack setting is distributed in precompressed
Between beam and load-bearing girder, the upper end of steel strand wires is anchored at the top of load-bearing girder by anchorage, and the lower end of steel strand wires passes through pre-
Anchorage is buried to be anchored in concrete bearing platform, each device is combined together to form an entirety, when in use, start jack,
Since what the top and bottom of jack was all accepted has steel plate, and fixed with steel strand wires, so when acting on jack,
The internal screw of jack is pushed down by load-bearing girder, two-way interaction, so that load-bearing girder gives jack one reversed work
Firmly, so that the opposition of jack is applied in precompressed distribution beam, precompressed distribution beam gives Cast-in-situ Beam bottom plate power again
Effect, so that it may achieve the effect that precompressed, each component gravity of the device is small, is convenient for carrying and transports, can be according to the need of precompressed
It selects required quantity, precompressed distribution beam and load-bearing girder hardness and load bearing stength big, can give pre- needed for Cast-in-situ Beam
Effect is pressed, easy to disassemble after use and storage is time saving and energy saving.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that article or equipment including a series of elements not only include those elements, but also including not arranging clearly
Other element out, or further include for elements inherent to such a process, method, article, or device.Not more
In the case where limitation, the element that is limited by sentence "including a ...", it is not excluded that including process, the side of the element
There is also other identical elements in method, article or equipment.
The above is only the specific embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
It should be understood that the application is not limited to the content for being described above and being shown in the accompanying drawings, and can
To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by the accompanying claims.
Claims (8)
1. a kind of prepressing device of cast-in-place beam bracket, described device includes steel strand wires (1), anchorage (2), jack (3), precompressed point
With beam (5), load-bearing girder (7), pre-buried anchorage (8), the precompressed distribution beam (5) is arranged on cast-in-place beam bottom mother plate, and described thousand
Jin top (3) is arranged between the precompressed distribution beam (5) and the load-bearing girder (7), and the upper end of the steel strand wires (1) passes through institute
The top that anchorage (2) is anchored at the load-bearing girder (7) is stated, the lower end of the steel strand wires (1) passes through pre-buried anchorage (8) anchor
Gu in concrete bearing platform.
2. the apparatus according to claim 1, which is characterized in that the peak load that the anchorage (2) is born is at least coagulation
2 times of native load.
3. the apparatus of claim 2, which is characterized in that be arranged between the anchorage (2) and the load-bearing girder (7)
There is gasket.
4. the apparatus according to claim 1, which is characterized in that set between the jack (3) and the load-bearing girder (7)
It is equipped with gasket.
5. the apparatus according to claim 1, which is characterized in that be provided with clamping described thousand on the precompressed distribution beam (5)
The card slot on jin top (3).
6. the apparatus according to claim 1, which is characterized in that the precompressed distribution beam (5) is Two bors d's oeuveres I-steel or Two bors d's oeuveres C
Fashioned iron.
7. the apparatus according to claim 1, which is characterized in that the load-bearing girder (7) is Two bors d's oeuveres I-steel or Two bors d's oeuveres c-type
Steel.
8. device according to claim 6 or 7, which is characterized in that the I-steel selects 25 type I-steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832286.3U CN208563119U (en) | 2018-05-31 | 2018-05-31 | A kind of prepressing device of cast-in-place beam bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820832286.3U CN208563119U (en) | 2018-05-31 | 2018-05-31 | A kind of prepressing device of cast-in-place beam bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208563119U true CN208563119U (en) | 2019-03-01 |
Family
ID=65484046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820832286.3U Active CN208563119U (en) | 2018-05-31 | 2018-05-31 | A kind of prepressing device of cast-in-place beam bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208563119U (en) |
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2018
- 2018-05-31 CN CN201820832286.3U patent/CN208563119U/en active Active
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