CN113306011A - Concrete solid pile vibration platform and production method - Google Patents
Concrete solid pile vibration platform and production method Download PDFInfo
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- CN113306011A CN113306011A CN202110505833.3A CN202110505833A CN113306011A CN 113306011 A CN113306011 A CN 113306011A CN 202110505833 A CN202110505833 A CN 202110505833A CN 113306011 A CN113306011 A CN 113306011A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/14—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means vibrating, e.g. the surface of the material
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Abstract
The invention discloses a concrete solid pile vibration platform which comprises a platform main body and a supporting structure for supporting the platform main body, wherein the platform main body comprises a panel, and main beams and cross beams which are fixed below the panel, the main beams are arranged on two sides below the panel, the supporting structure is fixed on the main beams, the supporting structure is a rigid component, the cross beams are arranged between the main beams on the two sides, vibrators are arranged on the main beams on the two sides in symmetrical positions, and rotors of the vibrators on the symmetrical positions relatively rotate. The concrete solid pile vibrating platform provided by the invention is compact in vibration and the aggregate is compact in aggregative property, so that the aggregate cannot sink due to knock vibration to cause a laitance layer to be formed on the upper surface of the concrete, and the pile body is prevented from shearing and reducing in compressive resistance; the vibration efficiency is high.
Description
Technical Field
The invention relates to the technical field of precast concrete components, in particular to a concrete solid pile vibration platform.
Background
In the production process of precast concrete component, in order to discharge the bubble in the concrete, make concrete structure reach the effect of high closely knit, high strength, to the hard concrete generally can vibrate closely knit, in the production practice, use the vibrating rod or shaking table to carry out the tap usually. The existing vibrating table has the problems that resonance is easy to generate, the vibrating compaction degree is not uniform, and the thick floating slurry layer formed on the upper surface of concrete is formed when the compaction degree is higher.
Disclosure of Invention
The invention aims at solving the problems and researches and designs a concrete solid pile vibration platform. The technical means adopted by the invention are as follows:
the utility model provides a concrete solid pile vibration platform, includes the platform main part and is used for the bearing structure of supporting platform main part, the platform main part includes the panel and is fixed in girder and the crossbeam of panel below, the girder sets up in the below both sides of panel, bearing structure is fixed in on the girder, the crossbeam sets up between the girder of both sides, is equipped with the vibrator on the symmetric position of girder of both sides, the rotor relative rotation of the vibrator of symmetric position.
Furthermore, the main beam and the cross beam are both of an H-shaped steel structure, the lower plane of the panel is connected with the main beam through an intermittent welding structure, and the intermittent welding structure comprises welding sections and non-welding sections which are arranged at intervals; the upper surface of the panel is provided with a low-elasticity rubber pad, and the thickness of the low-elasticity rubber pad is less than 3 mm.
Further, the length of the welding section is 50-100mm, and the length of the non-welding section is 80-120 mm.
Further, the vibrator is fixed in the inboard inslot of the H steel of girder, the vibrator amplitude is below 2mm, the mounted position of vibrator is equipped with additional strengthening.
Furthermore, each concrete solid pile vibration platform is provided with four vibrators.
Furthermore, the areas of the upper end surface and the lower end surface of the supporting structure are larger than the sectional area of the middle part of the supporting structure, and the diameters of the upper end surface and the lower end surface are 300-80 mm.
Furthermore, guide pieces are arranged on two sides of the panel, and the guide pieces are of inverted U-shaped structures fixed on the platform main body.
A concrete solid pile vibration platform system comprises the concrete solid pile vibration platform, two concrete solid pile vibration platforms are arranged along the length direction of a concrete member, a supporting structure is placed on a vibration foundation plate, a low-elasticity rubber pad is arranged between the supporting structure and the vibration foundation plate, and embedded parts for embedding into the foundation of the concrete platform are fixed below the vibration foundation plate.
The invention discloses a concrete solid pile production method, wherein the concrete slump is below 100mm, the amplitude of a vibration platform is adjusted to be below 2mm by using a concrete solid pile vibration platform or a concrete solid pile vibration platform system disclosed by the invention, and all vibrators of the platform are synchronously started to carry out vibration compaction.
Compared with the prior art, the concrete solid pile vibration platform is not provided with an elastic part (a spring and the like) for supporting; the whole vibration platform is adopted to bounce up and down, so that the concrete mold is knocked upwards by the high frequency of the vibration platform to the bottom of the concrete mold, the concrete mold is in a relatively suspended falling state, knocking vibration is carried out by the high-frequency centrifugal force of 7200 times per minute, the dry and hard concrete can generate an aggregation compact effect while effectively discharging internal air, a laitance layer can be effectively prevented from sinking in the concrete, and the whole structure is more compact; because every two relative rotations of whole vibration platform bobbing machine are a set of, use four two sets of kinetic energy as, make vibration platform produce the upper and lower amplitude below 2mm, and the bobbing machine does not have the time delay and starts simultaneously, can effectively prevent that vibration platform bobbing machine from producing resonance.
Drawings
Fig. 1 is a schematic structural diagram of a concrete solid pile vibration platform according to an embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is an enlarged side view of fig. 1.
FIG. 4 is an enlarged cross-sectional view A-A of FIG. 1 (including the vibrating base plate).
Fig. 5 is a schematic structural diagram of a panel according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a corner rib plate according to an embodiment of the present invention.
Fig. 7a and 7b are schematic structural views of a cross beam according to an embodiment of the present invention.
Fig. 8 is a schematic structural view of a guide according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 8, a concrete solid pile vibration platform includes a platform main body 1 and a support structure 2 for supporting the platform main body 1, the platform main body 1 includes a panel 11, and a main beam 12 and a cross beam 13 fixed below the panel 11, the main beam 12 is disposed on two sides below the panel 11, the cross beam 13 is disposed between the main beams 12 on two sides, and vibrators 14 are disposed on symmetrical positions of the main beams 12 on two sides. The vibrator 14 is arranged on the main beam 12 and then transmitted to the panel 11, so that the vibration is more uniform, and the concrete compaction effect is good. The vibrator 14 is a vibration motor.
The main beam 12 and the cross beam 13 are both H-shaped steel structures, each H-shaped steel comprises two parallel plates and a middle plate for connecting the two parallel plates, and the H-shaped steel structures can be finished H-shaped steel and can also be formed by welding steel plates. In this embodiment, the middle plate is longitudinally arranged, one parallel plate is fixed to the lower plane of the panel, the lower plane of the panel 11 is connected to the main beam 12 through an intermittent welding structure, and the intermittent welding structure comprises a welding section and a non-welding section which are arranged at intervals. In a preferred embodiment, the length of the welding section is 80-120mm, preferably 80 mm; the length of the non-welding section is 50-100mm, preferably 50 mm. The structure of intermittent welding is favorable for taking account of the flexibility of the platform structure while ensuring the structural rigidity, prevents local tearing and deformation, and effectively prevents the platform from resonating. The upper surface of panel is equipped with low elasticity rubber pad, the thickness on rubber layer is 3mm, and the setting on rubber layer has reduced the noise that the effect produced between mould and the panel, has increased the frictional force between mould and the panel simultaneously, makes the mould at the vibration in-process, and the position is more stable, controls the thickness on rubber layer at 3mm simultaneously, reaches under the noise reduction and increase frictional condition, and furthest keeps the real effect of shaking of vibration, avoids the vibration to become the flexible vibration.
The bottom plate of the vibrator 14 is fixed to the inner side of the middle plate of the main beam through bolts, and the bolts of the bottom plate of the vibrator 14 are fully welded after being installed and fixed. Every concrete solid pile vibration platform is preferred to be equipped with four (two sets of) vibrators, and to the vibration platform that length is 6m, two sets of vibrators are preferred to be set up respectively in the distance department apart from vibration platform both ends 1m, and the rotor direction of rotation relative rotation of the 14 vibrators of symmetric position, further prevent resonance, guarantee the stability of platform vibration to set up four two sets of vibrators altogether, only one side interrelatedly between the vibrator, the opposite side does not all have other vibrators, can further prevent resonance. Vibrator 14 is the vibrator that the amplitude is 0.2mm, replaces the vibrator of original 0.1mm amplitude, and the preferred 7200r/min of frequency of vibrator, control the vibrator amplitude is below 2mm, and the concrete exhaust is faster, closely knit degree is higher, through improving vibration frequency, shortening vibration time (the corresponding vibration time of setting for of the component of co-altitude not), the mode of control amplitude, when reaching the vibration power and transmitting to the component upper surface, the vibration is stopped promptly in the shaping of surface aggregate, can effectively prevent in the concrete aggregate subside and appear the laitance layer, and the structure is more closely knit. The amplitude of the vibration table can be controlled by selecting the weight of the vibration table. The vibration time is preferably 4 minutes for a concrete solid square pile of 500 × 500 gauge, 3.5 minutes for a concrete solid square pile of 450 × 450 gauge, and 3 minutes for a concrete solid square pile of 400 × 400 gauge. Reinforcing structure 19 can be set up in vibrator 14's position, and reinforcing structure 19 specifically can be for the channel-section steel structure, and reinforcing structure 19's setting makes vibrator 14's vibration transmit to whole platform effectively, avoids local vibration too strong, further improves the homogeneity of vibration. For better stability, corner ribs 16 may be provided between the cross beams 13 and the main beams 12 and between the reinforcing structure 19 and the main beams 12.
The areas of the upper end face and the lower end face of the supporting structure are larger than the sectional area of the middle part of the supporting structure, and the diameters of the upper end face and the lower end face are 80-300 mm. The welding area of the supporting structure and the platform main body is larger and more stable, the impact of the supporting structure on the supporting platform foundation is reduced, the tap effect is increased, the service life is prolonged, and the weight of the whole platform is reduced.
The two sides of the panel 11 are provided with guides 18 to prevent the concrete member mould from shifting and even falling off during vibration. The guide piece is the structure of falling the U-shaped of fixing on the platform main part, when preventing that the mould from dropping as the guide piece, can also be simultaneously as the lifting hook, and the hoisting equipment of being convenient for use hangs and removes.
The utility model provides a concrete solid pile vibration platform system, includes this embodiment concrete solid pile vibration platform, two concrete solid pile vibration platform set up along concrete member length direction, bearing structure places on vibration foundatin plate 3, be equipped with low elasticity rubber pad 32 between bearing structure 2 and the vibration foundatin plate 3, low elasticity rubber pad 32 can be the rubber pad of low flexibility, for example can be made by conveyor belt, cuts out conveyor belt into required shape as low elasticity rubber pad, plays noise reduction's effect and certain shock insulation effect. Be equipped with the setting element of fixing a position low elasticity rubber pad 32 on vibration foundatin plate 3, the setting element is basic sleeve 31 in this embodiment, bearing structure 2's lower extreme is located basic sleeve 31, vibration foundatin plate 3's below is fixed with the built-in fitting 33 that is used for the built-in concrete platform basis of going into. Certain intervals can be set along concrete member length direction between two concrete solid pile vibration platforms, further promote the homogeneity of vibration, prevent resonance to can exchange the position of two platforms as required.
The vibration platform of this embodiment is rigid contact between platform main part and the bearing structure, also only is equipped with low-elasticity rubber pad 32 between bearing structure and the vibration foundatin plate 3, and low-elasticity rubber pad 32 flexibility is lower. Under the condition, the vibration platform vibrates with the amplitude not larger than 2mm under the action of the vibrators, the amplitude of the vibration platform is determined by the vibration condition of the vibrators, the amplitude of the vibration platform is not limited by the limit of any elastic structure, the low-elasticity rubber pad 32 does not generate reverse thrust on the platform, when the vibrators are started, all the vibrators of the platform are started simultaneously, delay time difference does not exist among different vibrators, eccentric blocks of the vibrators rotate symmetrically at opposite positions, the vibration of the vibrators on two sides drives the vibration platform to vibrate up and down together, high-frequency regular beating force is generated on the vibration platform through regular vibration of the vibrators, and therefore compaction of concrete is achieved. In the prior art, the vibration platform is arranged on the spring, the air spring and other structures, the buffering force and the buffering amplitude of the spring are large in the vibration process, the vibration and the elastic force of the spring are mutually superposed, the vibration is unstable, the vibration effect is poor, and the resonance is easy to generate.
A concrete solid pile production method is characterized in that concrete slump is below 100mm, the concrete solid pile vibration platform or the concrete solid pile vibration platform system is used, the amplitude of the vibration platform is adjusted to be below 2mm, all vibrators of the platform are synchronously started to carry out compaction, air bubbles in concrete are discharged after vibration, and vibration is stopped.
The vibration platform amplitude of this embodiment or the whole amplitude of vibration platform and mould can be realized through the frequency of adjustment vibrator, and to vibrating motor, its frequency and centrifugal force are the correlation, can adjust according to specific vibrating motor's characteristic, and through adjustment vibrating motor's centrifugal force, and then the amplitude of adjustment vibration platform can avoid the resonant frequency of platform through adjusting frequency simultaneously, and concrete regulation accessible converter realizes. For example, the relationship among the frequency, vibration frequency and centrifugal force of a vibration motor of model number HKM100LF (J) manufactured by encyclopedia vibration machine (jiaxing) ltd is shown in the following table:
the production method of the embodiment takes the dry and hard concrete with the falling degree of less than 100mm as a raw material, has uniform vibration effect, can effectively prevent the platform from generating resonance, has good compaction effect, can effectively prevent aggregate from sinking in the concrete to generate a laitance layer, and has more compact structure.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (9)
1. The utility model provides a concrete solid pile vibration platform, includes the platform main part and is used for the bearing structure of supporting platform main part, the platform main part includes the panel and is fixed in girder and the crossbeam of panel below, its characterized in that: the main beams are arranged on two sides of the lower portion of the panel, the supporting structure is fixed under the main beams, the supporting structure is a rigid component, the cross beam is arranged between the main beams on the two sides, the vibrators are arranged on the main beams on the two sides in the symmetrical positions, and the rotors of the vibrators on the symmetrical positions rotate relatively.
2. The concrete solid pile vibration platform of claim 1, wherein: the high-elasticity steel plate is characterized in that the main beam and the cross beam are H-shaped steel structures, the panel is connected with the main beam through an intermittent welding structure, the intermittent welding structure comprises a welding section and a non-welding section which are arranged at intervals, a low-elasticity rubber pad is arranged on the upper surface of the panel, and the thickness of the low-elasticity rubber pad is less than 3 mm.
3. The concrete solid pile vibration platform of claim 2, wherein: the length of the welding section is 50-100mm, and the length of the non-welding section is 80-120 mm.
4. The concrete solid pile vibration platform of claim 3, wherein: the vibrator is fixed in the inner side groove of the H steel of the main beam, the amplitude of the vibrator is less than 2mm, and a reinforcing structure is arranged at the mounting position of the vibrator.
5. A concrete solid pile vibration platform according to any one of claims 1 to 4, wherein: and each concrete solid pile vibration platform is provided with four vibrators.
6. The concrete solid pile vibration platform of claim 5, wherein: the areas of the upper end face and the lower end face of the supporting structure are larger than the sectional area of the middle part of the supporting structure, and the diameters of the upper end face and the lower end face are 80-300 mm.
7. The concrete solid pile vibration platform of claim 6, wherein: the two sides of the panel are provided with guide pieces which are inverted U-shaped structures fixed on the platform main body.
8. The utility model provides a concrete solid pile vibration platform system which characterized in that: the concrete solid pile vibration platform comprises the concrete solid pile vibration platform as claimed in any one of claims 1 to 7, wherein two concrete solid pile vibration platforms are arranged along the length direction of a concrete member, the supporting structure is placed on a vibration foundation plate, a low-elasticity rubber pad is arranged between the supporting structure and the vibration foundation plate, and an embedded part for embedding into the foundation of the concrete platform is fixed below the vibration foundation plate.
9. A production method of a concrete solid pile is characterized by comprising the following steps: the concrete slump is less than 100mm, the amplitude of the vibration platform is adjusted to be less than 2mm by using the concrete solid pile vibration platform according to any one of claims 1 to 7 or the concrete solid pile vibration platform system according to claim 8, and all vibrators of the platform are synchronously started to carry out vibration compaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505833.3A CN113306011A (en) | 2021-05-10 | 2021-05-10 | Concrete solid pile vibration platform and production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110505833.3A CN113306011A (en) | 2021-05-10 | 2021-05-10 | Concrete solid pile vibration platform and production method |
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| Publication Number | Publication Date |
|---|---|
| CN113306011A true CN113306011A (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110505833.3A Pending CN113306011A (en) | 2021-05-10 | 2021-05-10 | Concrete solid pile vibration platform and production method |
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| CN (1) | CN113306011A (en) |
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- 2021-05-10 CN CN202110505833.3A patent/CN113306011A/en active Pending
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Effective date of registration: 20211221 Address after: 434000 No. 101, office building of fupeng electric company, No. 28, Xinhua Road, Jingzhou Development Zone, Jingzhou City, Hubei Province Applicant after: Hubei Jiegu Construction Technology Co.,Ltd. Address before: 434000 5th floor, dormitory of water conservancy station, cenhe Town, Jingzhou City, Hubei Province Applicant before: Zhang Lin |