CN109795028B - Compound configuration system of same batch stretch-draw muscle - Google Patents
Compound configuration system of same batch stretch-draw muscle Download PDFInfo
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- CN109795028B CN109795028B CN201910097114.5A CN201910097114A CN109795028B CN 109795028 B CN109795028 B CN 109795028B CN 201910097114 A CN201910097114 A CN 201910097114A CN 109795028 B CN109795028 B CN 109795028B
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Abstract
The invention provides a composite configuration system for tensioning ribs in the same batch, and belongs to the technical field of precast pile manufacturing. It has solved the problem that current prestressing tendons stretch-draw operation is irregular. This compound configuration system of same batch lacing wire, it is used for concrete precast pile configuration thickness different reinforcing bar, the compound configuration system of same batch lacing wire includes a tensioning muscle compound configuration structure, and one is used for the initialization setting the initialization module of the initial parameter of tensioning muscle compound configuration structure, a calculation the calculation module of the parameter of each tensioning muscle of tensioning muscle compound configuration structure to and a tensioning mechanism. The composite configuration system of the same batch of tensioning tendons realizes the same batch tensioning of the prestressed tendons with different diameters, a plurality of tensioning mechanisms are not required to be configured, the working efficiency is greatly improved, and the component quality is easy to control.
Description
Technical Field
The invention belongs to the technical field of precast pile manufacturing, and relates to a composite configuration system for tensioning tendons in the same batch.
Background
When the concrete pipe pile is produced, the processes of feeding, tensioning, centrifuging, normal-temperature steam curing, sheet releasing, demolding, high-pressure steam curing and the like need to be carried out, and the parameters of each process need to be accurately controlled.
The traditional prestressed member steel bar needs to control the strength of a pile body and the crack condition through tensioning, and the tensioning mode usually comprises simultaneous tensioning and batch tensioning. The two tensioning modes can be applied to the condition that the diameters of the steel bars of the member are the same, but for the composite reinforced prestress member, the existing tensioning technology needs to tension in batches in order to reach the prestress value of the member, the tensioning mode is time-consuming and difficult to control the quality of the member, and more irregular operations are still carried out in the existing precast pile, so that the production cost is improved, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a composite configuration system for tensioning tendons in the same batch.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a compound configuration system of same batch lacing wire, its reinforcing bar that is used for concrete precast pile configuration thickness difference, compound configuration system of same batch lacing wire includes a tensioning wire composite configuration structure, and one is used for the initialization setting the initialization module of the initial parameter of tensioning wire composite configuration structure, a calculation the calculation module of the parameter of each tensioning wire of tensioning wire composite configuration structure to and a tensioning mechanism, tensioning wire composite configuration structure includes four thick reinforcements that are the rectangle and arrangeThe prestressed reinforcing steel bars are arranged on the four sides of the rectangle, and the prestressed reinforcing steel bars are arranged between the thick prestressed reinforcing steel bars; the initialization module is used for initializing the length H and the elongation rate mu of the thick prestressed tendons of the precast pile1Elongation rate mu of thin prestressed tendon2And the extension coefficient k of the tension bar composite configuration structure is less than 0.5; the calculation module is used for calculating the original lengths of the thick prestressed tendon and the thin prestressed tendon, wherein the original length of the thick prestressed tendon is H1The original length of the thin prestressed tendon is H2Then, then
H1＝H/(1+kμ1)；
H2＝H/(1+kμ2)
The tensioning mechanism is used for tensioning the length of the coarse prestressed tendon to H2And then tensioning the lengths of the thick prestressed tendons and the thin prestressed tendons to H.
In the above-mentioned composite configuration system of the tensioning tendons in the same batch, the tensioning mechanism includes tensioning plates disposed at both ends of the thick prestressed tendons and the thin prestressed tendons, and a connection limiting mechanism is disposed between the tensioning plates and the thick prestressed tendons and the thin prestressed tendons.
In the above composite configuration system for the tensioning bars in the same batch, the tensioning mechanism further comprises tensioning rods connected to the outer sides of the two ends of the tensioning plate, and the tensioning rods are connected with tensioning rod driving mechanisms.
In the above-mentioned composite configuration system of the tension tendons in the same batch, the connection limiting mechanism includes a mounting hole provided on the tension plate, and a tendon nut provided in the mounting hole, and the thick tendon and the thin tendon are respectively connected to the tendon nut in a one-to-one correspondence.
In the above composite configuration system of the tendons in the same batch, an annular shoulder is arranged at one end of the tendon nut far away from the tensioning plate, and the annular shoulder abuts against the outer side of the tensioning plate.
In the above composite arrangement system for the tensioning bars in the same batch, the tensioning bar driving mechanism includes any one of a driving motor and a driving cylinder.
In the above composite configuration system of the tendons in the same batch, the end of the thick tendon is flush with the end of the thin tendon, and the thin tendon is in a bent state.
In the above composite configuration system of the tensioning bars in the same batch, the end of the thick prestressed bar and the end of the thin prestressed bar do not protrude out of the outer side of the tensioning plate.
In the above-mentioned composite arrangement system of the tensioning tendons in the same batch, the diameter of the thin prestressed tendons is within 2 cm.
A composite configuration method of tensioning bars in the same batch is used for configuring reinforcing bars with different thicknesses for a concrete precast pile, and comprises the following steps:
providing an initialization module for initializing and setting the length H and the elongation mu of the coarse prestressed tendons of the precast pile1Elongation rate mu of thin prestressed tendon2And the extension coefficient k of the tension bar composite configuration structure is less than 0.5;
providing a calculation module for calculating the original lengths of the thick prestressed tendon and the thin prestressed tendon, wherein the original length of the thick prestressed tendon is H1The original length of the thin prestressed tendon is H2Then, then
H1＝H/(1+kμ1)；
H2＝H/(1+kμ2)
Providing a plurality of four thick prestressed tendons which are arranged in a rectangular shape and at least four thin prestressed tendons which are respectively arranged among the thick prestressed tendons, wherein the at least four thin prestressed tendons are respectively arranged on four edges of the rectangular shape;
providing a tensioning mechanism for tensioning the length of the coarse prestressed tendon to H2And then tensioning the lengths of the thick prestressed tendons and the thin prestressed tendons to H.
Compared with the prior art, the composite configuration system of the tensioning ribs in the same batch has the following advantages:
1. the tension bar composite configuration structure of the composite configuration system of the tension bars in the same batch is more balanced in stress, and the strength of the cast pile body is higher.
2. The composite configuration system of the tension tendons in the same batch has the advantages of quick calculation, easy selection of the prestressed tendons with proper length and resource saving.
3. The composite configuration system tensioning mechanism of the tensioning ribs in the same batch is stable and reliable, and the tensioning force is balanced and controllable.
4. The composite configuration system of the same batch of tensioning tendons realizes the same batch tensioning of the prestressed tendons with different diameters, a plurality of tensioning mechanisms are not required to be configured, the working efficiency is greatly improved, and the component quality is easy to control.
Drawings
Fig. 1 is a schematic diagram of a compound deployment system for the same batch of tensioning bars.
Fig. 2 is an arrangement diagram of a tension bar composite configuration structure.
Fig. 3 is a schematic view of a tensioning mechanism.
In the figure, 1, a tension bar composite configuration structure; 11. coarse prestressed tendons; 12. fine prestressed tendons; 2. initializing a module; 3. a calculation module; 4. a tensioning mechanism; 41. stretching the plate; 42. stretching a pull rod; 43. a tension rod driving mechanism; 44. mounting holes; 45. a prestressed tendon nut; 46. an annular shoulder.
Detailed Description
As shown in fig. 1-2, a compound configuration system of the same batch of tendons, it is used for configuring the different reinforcing bars of thickness for the precast concrete pile, compound configuration system of the same batch of tendons includes a compound configuration structure 1 of tendon, one is used for the initialization setting the initialization module 2 of the initial parameter of compound configuration structure 1 of tendon, a calculation module 3 of calculating the parameter of each tendon of compound configuration structure 1 of tendon, and a tensioning mechanism 4, compound configuration structure 1 of tendon includes four thick tendons 11 that are the rectangle range, and at least four sets up respectively thin tendons 12 between the thick tendons 11, at least four thin tendons 12 set up respectively four sides of rectangle.
The tension bar composite configuration structure 1 has the advantages of higher pile body strength, more reliable connection, more balanced stress during tension and good tension effect.
The initialization module 2 is used for initializing the length H of the precast pile and the elongation rate mu of the thick prestressed tendon 111Elongation mu of thin prestressed tendon 122And the extension coefficient k of the tension bar composite configuration structure 1 is less than 0.5.
It should be understood by those skilled in the art that the present composite deployment system of the same batch of tendons is not limited to two different diameters of prestressed tendons. In the present embodiment, two kinds of prestressed reinforcements with different diameters are selected as an example, the length H of the precast pile is known, and the elongation μ of the thick prestressed reinforcement 11 is known1Elongation mu of thin prestressed tendon 122A corresponding value can be obtained through the diameters of the thick prestressed tendons 11 and the thin prestressed tendons 12, and the extension coefficient k of the tension tendon composite configuration structure 1 is the tensile strength which is obtained according to the prestressed tendons.
Be provided with a large amount of data in the initialization module 2, according to the length H of manual input precast pile, the diameter of multiple prestressing tendons to and stretch-draw muscle composite configuration structure 1's coefficient of extension k, improved work efficiency greatly, turn into the normalized operation with original empirical operation, product quality can obtain promoting.
The calculation module 3 is configured to calculate original lengths of the thick prestressed tendons 11 and the thin prestressed tendons, where the original length of the thick prestressed tendons 11 is H1The original length of the thin prestressed tendon 12 is H2Then, then
H1＝H/(1+kμ1)；
H2＝H/(1+kμ2)
The tensioning mechanism 4 is used for tensioning the length of the coarse prestressed tendon 11 to H2And then the lengths of the thick prestressed tendons 11 and the thin prestressed tendons 12 are stretched to H.
It will be appreciated by those skilled in the art that the larger the diameter of the tendon, the more it should beThe greater the tendon elongation, in this embodiment, the elongation μ due to the coarse tendon 111Greater than the elongation mu of the thin prestressed tendon 122Original length H of the coarse tendon 111Less than the original length H of the thin prestressed tendon 122。
And a calculation module 3 is arranged, and the required length of the prestressed tendon is obtained according to the calculation formula, so that the accurate material consumption is facilitated, the production cost is saved, and the standardized operation is realized.
As shown in fig. 3, the tensioning mechanism 4 includes tensioning plates 41 disposed at two ends of the thick prestressed tendons 11 and the thin prestressed tendons 12, and a connection limiting mechanism is disposed between each tensioning plate 41 and each of the thick prestressed tendons 11 and the thin prestressed tendons 12.
The composite configuration system of the same batch of tensioning tendons realizes the same batch tensioning of the prestressed tendons with different diameters, a plurality of tensioning mechanisms 4 are not required to be configured, the working efficiency is greatly improved, and the component quality is easy to control.
The tensioning mechanism 4 further comprises a tensioning rod 42 connected to the outer sides of two ends of the tensioning plate 41, and a tensioning rod driving mechanism 43 is connected to the tensioning rod 42.
The tensioning mechanism 4 is connected with the prestressed tendons through a tensioning plate 41, so that the prestressed tendons can be stressed uniformly.
The tension rod driving mechanism 43 includes any one of a driving motor and a driving cylinder.
The connecting and limiting mechanism comprises a mounting hole 44 arranged on the tensioning plate 41 and a prestressed tendon nut 45 arranged in the mounting hole 44, and the thick prestressed tendons 11 and the thin prestressed tendons 12 are respectively connected with the prestressed tendon nuts 45 in a one-to-one correspondence mode.
The prestressed tendon nut 45 is arranged to realize reliable connection of the prestressed tendon and the tensioning plate 41, so that tensioning stress of the prestressed tendon is facilitated.
An annular shoulder 46 is arranged at one end of the tendon nut 45 far away from the tensioning plate 41, and the annular shoulder 46 abuts against the outer side of the tensioning plate 41.
The annular shoulder 46 is arranged, so that the self strength of the prestressed tendon nut 45 can be ensured while the prestressed tendon is uniformly stressed.
The end of the thick prestressed tendon 11 is flush with the end of the thin prestressed tendon 12, and the thin prestressed tendon 12 is in a bending state.
Because the length of the thin prestressed tendons 12 is larger than that of the thick prestressed tendons 11, under the condition that the length difference between the thin prestressed tendons and the thick prestressed tendons is large, the end parts of the thick prestressed tendons 11 are flush with the end parts of the thin prestressed tendons 12, and the thin prestressed tendons 12 are in a bending state.
The end of the thick prestressed tendon 11 and the end of the thin prestressed tendon 12 do not protrude out of the outer side of the tensioning plate 41.
The diameter of the thin tendons 12 is within 2 cm.
The thin tendons 12 maintain appropriate bending properties.
A composite configuration method of tensioning bars in the same batch is used for configuring reinforcing bars with different thicknesses for a concrete precast pile, and comprises the following steps:
providing an initialization module 2, wherein the initialization module 2 is used for initializing and setting the length H of the precast pile and the elongation mu of the coarse prestressed tendons 111Elongation mu of thin prestressed tendon 122And the extension coefficient k of the tension bar composite configuration structure 1 is less than 0.5;
providing a calculating module 3, wherein the calculating module 3 is used for calculating the original lengths of the thick prestressed tendons 11 and the thin prestressed tendons, and the original length of the thick prestressed tendons 11 is H1The original length of the thin prestressed tendon 12 is H2Then, then
H1＝H/(1+kμ1)；
H2＝H/(1+kμ2)
Providing a plurality of four thick prestressed tendons 11 which are arranged in a rectangular shape and at least four thin prestressed tendons 12 which are respectively arranged between the thick prestressed tendons 11, wherein the at least four thin prestressed tendons 12 are respectively arranged on four sides of the rectangular shape;
providing a tensioning mechanism 4, wherein the tensioning mechanism 4 tensions the length of the coarse prestressed tendon 11 to H2And then the lengths of the thick prestressed tendons 11 and the thin prestressed tendons 12 are stretched to H.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. A composite configuration system of tensioning bars in the same batch, which is used for configuring reinforcing bars with different thicknesses for a concrete precast pile, it is characterized in that the composite configuration system of the tensioning bars in the same batch comprises a tensioning bar composite configuration structure (1), an initialization module (2) for initializing and setting initial parameters of the tensioning bar composite configuration structure (1), a calculation module (3) for calculating parameters of each tensioning bar of the tensioning bar composite configuration structure (1), and a tensioning mechanism (4), the tensioning rib composite configuration structure (1) comprises four thick prestressed ribs (11) which are arranged in a rectangular shape, and at least four thin prestressed tendons (12) respectively arranged between the thick prestressed tendons (11), the at least four thin prestressed tendons (12) are respectively arranged on four edges of the rectangle; the initialization module (2) is used for initializing the length H of the precast pile and the elongation mu of the thick prestressed tendon (11)1Elongation mu of the thin prestressed tendon (12)2And the coefficient of extension k of the stretch-draw tendon composite configuration structure (1), wherein the coefficient of extension k is less than 0.5; the calculation module (3) is used for calculating the original lengths of the thick prestressed tendons (11) and the thin prestressed tendons (12), wherein the original length of the thick prestressed tendons is H1The original length of the thin prestressed tendon is H2The end of the thick prestressed tendon is flush with the end of the thin prestressed tendon, and the thin prestressed tendon is in a bending state
H1＝H/(1+kμ1)；
H2＝H/(1+kμ2)
The tensioning mechanism (4) is used for tensioning the length of the coarse prestressed tendon (11) to H2Then the lengths of the thick prestressed tendons (11) and the thin prestressed tendons (12) are setAnd (5) tensioning to H.
2. A composite arrangement system of a tendon in the same batch as that in claim 1, wherein the tensioning mechanism (4) includes tensioning plates (41) disposed at both ends of the thick tendon (11) and the thin tendon (12), and a connection limiting mechanism is disposed between each tensioning plate (41) and the thick tendon (11) and the thin tendon (12).
3. A composite arrangement system for tension bars in the same batch as that in claim 2, wherein the tension mechanism (4) further comprises tension rods (42) connected to the outer sides of the two ends of the tension plate (41), and the tension rod (42) is connected with a tension rod driving mechanism (43).
4. A composite arrangement system for a tension member in the same batch as that in claim 2, wherein the connection limiting mechanism includes a mounting hole (44) provided on the tension plate (41), and a tendon nut (45) provided in the mounting hole (44), and the thick tendon (11) and the thin tendon (12) are respectively connected to the tendon nut (45) in a one-to-one correspondence.
5. A composite deployment system of tendons of the same batch as in claim 4, characterized in that the tendon nut (45) has an annular shoulder (46) at the end away from the tensioning plate (41), said annular shoulder (46) abutting on the outside of the tensioning plate (41).
6. A compound deployment system for tendons of the same batch according to claim 4, characterized in that the tension bar driving mechanism (43) comprises any one of a driving motor and a driving cylinder.
7. A composite deployment system of tendons in the same batch as that of claim 2, wherein the ends of the thick tendons (11) and the thin tendons (12) do not protrude outside the tension plates (41).
8. A composite deployment system of tendons of the same batch as in claim 1, characterized in that the diameter of the thin tendons (12) is within 2 cm.
9. A composite configuration method of tensioning bars in the same batch is used for configuring reinforcing steel bars with different thicknesses for a concrete precast pile, and is characterized by comprising the following steps of:
providing an initialization module for initializing and setting the length H and the elongation mu of the thick prestressed tendons (11) of the precast pile1Elongation mu of the thin prestressed tendon (12)2And the coefficient of extension k of the stretch-draw tendon composite configuration structure (1), wherein the coefficient of extension k is less than 0.5;
providing a calculation module for calculating the original lengths of the thick prestressed tendon (11) and the thin prestressed tendon (12), wherein the original length of the thick prestressed tendon is H1The original length of the thin prestressed tendon is H2Then, then
H1＝H/(1+kμ1)；
H2＝H/(1+kμ2)
Providing a plurality of four thick prestressed tendons (11) which are arranged in a rectangular shape and at least four thin prestressed tendons (12) which are respectively arranged between the thick prestressed tendons (11), wherein the at least four thin prestressed tendons (12) are respectively arranged on four edges of the rectangular shape;
providing a tensioning mechanism (4), wherein the tensioning mechanism (4) tensions the length of the coarse prestressed tendon (11) to H2And then tensioning the lengths of the thick prestressed tendons (11) and the thin prestressed tendons (12) to H.
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| CN1210469C (en) * | 2002-01-22 | 2005-07-13 | 王用中 | Ductile prestressed concrete structure component and its production method |
| EP2107969A4 (en) * | 2006-12-05 | 2010-08-25 | Ibco Srl | Stretchable scrim wrapping material |
| CN105598568B (en) * | 2015-12-31 | 2017-11-14 | 青岛昊河水泥制品有限责任公司 | Reinforced bar skeleton seam welder, Making of reinforcement cage method and square pile preparation method |
| CN106088082A (en) * | 2016-08-03 | 2016-11-09 | 浙江大学建筑设计研究院有限公司 | Use the compound arrangement of reinforcement pretensioning prestressed concrete pile of movable formula sleeve connection |
| CN106514861A (en) * | 2016-11-24 | 2017-03-22 | 青岛昊河水泥制品有限责任公司 | Composite reinforcing bar reinforcement cage prestressed tensioning device and method for manufacturing prestressed square-sectioned pile |
| CN106476125B (en) * | 2016-12-06 | 2019-01-15 | 汝州郑铁三佳水泥制品有限公司 | A method of for producing model and its production switch tie of the high speed without tiny fragments of stone, coal, etc. railway switch tie |
| CN206486891U (en) * | 2017-01-13 | 2017-09-12 | 许顺良 | Size is combined reinforcement prestressed concrete stake |
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