CN218170851U - Asynchronous tensioning device for mixed reinforced concrete pipe pile - Google Patents
Asynchronous tensioning device for mixed reinforced concrete pipe pile Download PDFInfo
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- CN218170851U CN218170851U CN202222546518.8U CN202222546518U CN218170851U CN 218170851 U CN218170851 U CN 218170851U CN 202222546518 U CN202222546518 U CN 202222546518U CN 218170851 U CN218170851 U CN 218170851U
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Abstract
The utility model relates to a mixed reinforced concrete tubular pile asynchronous tensioning device, including drive arrangement, fixed end subassembly, tensioning end subassembly and connecting plate, the fixed end subassembly includes the guide rail, first interior, outer end plate, the stopper piece, tensioning end subassembly includes in the second, outer end plate, pass corresponding end plate with the macropore end in egg-shaped hole through with all kinds of reinforcement both ends pier nose back, and slide into the aperture end, realize the stopper cooperation at both ends, then the first inner end plate stopper of fixed end pair, the other end drives in the second, outer end plate removes, make with inner end plate stopper complex prestressed steel stick at first by stretch-draw, after first outer end plate and first inner end plate contact, drive hot rolling twisted steel stretch-draw, but asynchronous stretch-draw when realizing the reinforcement of two kinds of prestressing force demands, the stretch-draw of the many reinforcement of once only realizing two kinds of prestressing force demands.
Description
Technical Field
The utility model relates to a mixed reinforced concrete tubular pile asynchronous tensioning device and tensioning method.
Background
The prestressed concrete pipe pile has the advantages of meeting the environmental protection requirement, reliable pile forming quality, high construction speed, high work efficiency, short construction period, good bending resistance and cracking resistance and the like, and is widely used in roads, bridges, ports, wharfs, industry and civil buildings at present.
However, the existing prestressed concrete pipe piles are rough in tension mode, only one steel bar can be tensioned at a time, the efficiency is low, a plurality of steel bars with different prestress requirements cannot be tensioned at the same time, and the application range is limited.
To mixing reinforced concrete tubular pile, be the prestressing steel that relates to many different prestressing force demands, if adopt traditional mode not only waste time and energy, can't satisfy the stretch-draw demand, hardly guarantee the same prestressing force demand of same type of reinforcing bar when stretching of root moreover traditional mode, influence the bearing performance of tubular pile.
Therefore, a new technology which has low cost, simple structure and practicality, and more importantly, can efficiently realize the one-time tensioning of the mixed reinforced concrete pipe pile and can ensure the tensioning quality is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a mixed reinforced concrete pipe pile asynchronous tensioning device which has low cost, simple structure and practicality, and more importantly, can efficiently realize the one-time tensioning of the mixed reinforced concrete pipe pile and can ensure the tensioning quality; the utility model aims at providing a mixed reinforced concrete tubular pile asynchronous tensioning method who uses above-mentioned mixed reinforced concrete tubular pile asynchronous tensioning device still.
The utility model discloses an unsynchronized tensioning equipment of mixed reinforced concrete tubular pile's technical scheme as follows: the mixed reinforced concrete pipe pile asynchronous tensioning device comprises a guide rail, a first inner end plate and a first outer end plate, wherein the first inner end plate and the first outer end plate freely move along the guide rail under the guidance of the guide rail; the second inner end plate and the second outer end plate are positioned on the other side; the first inner end plate and the second inner end plate are provided with a plurality of inner egg-shaped holes for the pre-stressed steel bars to pass through and a plurality of inner steel bar through holes for the hot-rolled threaded steel bars to pass through, the inner egg-shaped holes and the inner steel bar through holes are arranged on the same circumference in a one-to-one staggered mode, the diameter of the large hole end of each inner egg-shaped hole is larger than the outer diameter of the pier head of each pre-stressed steel bar, and the diameter of the small hole end of each inner egg-shaped hole is between the outer diameter of each pre-stressed steel bar and the outer diameter of the pier head of each pre-stressed steel bar so that the pier head can slide to the small hole end after passing through the large hole end to be stopped; the outer end plates of the first outer end plate and the second outer end plate are fixedly connected through a connecting bolt, and the inner end plate and the outer end plate of the second outer end plate are driven by a driving device to move so as to stretch each prestressed steel bar and each hot-rolled threaded steel bar.
Furthermore, the guide rail is in a semicircular pipe shape, a plurality of positioning pin holes are formed in the inner circumferential surface of the guide rail at intervals along the axial direction, and the stop piece is selectively fixed on the positioning pin holes through positioning pins.
Furthermore, the guide rail constitutes the bed die when mixing reinforced concrete tubular pile pours, and the guide rail edge is equipped with the ring flange that is used for with semicircle tubulose last mould releasable connection.
Furthermore, the inner and outer egg-shaped holes respectively comprise a large hole, a small hole and a connecting hole for connecting the large hole and the small hole, and the width of the connecting hole is the same as the diameter of the small hole.
The utility model has the advantages that: the utility model discloses at least, have following advantage: (1) The device and the method can realize the tension of various prestressed reinforcing bars of the mixed reinforced concrete pipe pile at one time, and compared with the prior art, the device has the advantages of high tension efficiency, simple and convenient operation and labor saving; (2) Compared with the single tensioning mode in the prior art, the one-time tensioning mode ensures that the stress and the deformation of the similar prestressed reinforcements are basically the same, so that the basically uniform prestressed reinforcements are provided in the circumferential direction, and the tubular pile can have stable bearing performance; (3) The device has the advantages that the used parts are fewer and are easily obtained parts, the device is convenient to process, can be directly processed and modified by using on-site materials, is convenient to use, has low cost and is easily accepted by customers; further, the guide rails not only can be used for guiding the first inner end plate and the first outer end plate, but also can be used as a lower die for pouring the concrete of the pipe pile.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the non-synchronous tensioning device for a hybrid reinforced concrete pipe pile of the present invention (for conveniently displaying the connecting bolt, the prestressed steel bar and the hot-rolled twisted steel bar, the three are arranged in a staggered manner in the drawing, and actually, the three are on the same circumference);
FIG. 2 is a front view of the first and second outer end plates;
FIG. 3 is a front view of the first and second inner end plates;
in the figure: 1-telescopic rod, 2-connecting plate, 3-connecting bolt, 4-second outer end plate, 5-second inner end plate, 6-prestressed steel bar, 7-hot rolled threaded steel bar, 8-stirrup, 9-guide rail, 10-stopper, 11-first inner end plate, 12-first outer end plate, 13-pier head, 14-inner steel bar perforation, 15-inner egg-shaped hole, 16-outer egg-shaped hole, 17-large hole, 18-small hole, 19-connecting hole, 20-central hole and 21-hydraulic cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses an unsynchronous tensioning equipment of mixed reinforced concrete tubular pile's an embodiment: mix unsynchronized tensioning equipment of reinforced concrete tubular pile includes:
the driving device comprises a hydraulic cylinder 21 and a telescopic rod 1 which can stretch and retract, and in other embodiments, other linear reciprocating devices with larger driving force can be adopted;
the fixed end assembly comprises a guide rail 9, a first inner end plate 11 and a first outer end plate 12, wherein the first inner end plate 11 and the first outer end plate 12 freely move along the guide rail 9 under the guidance of the guide rail 9, and the guide rail 9 is provided with a stop member 10 for limiting the first inner end plate 11 to move towards the tensioning direction; wherein, the guide rail 9 is a semi-circular tubular structure made of steel. The structure of the first inner end plate 11 and the first outer end plate 12 is shown in fig. 2 and 3. The stopping piece 10 is in a semicircular tube structure, the diameter of the outer peripheral surface of the stopping piece is the same as that of the inner peripheral surface of the guide rail so as to be completely attached to the guide rail, a plurality of pin holes are uniformly distributed in the guide rail, a plurality of pin holes are correspondingly formed in the stopping piece, and the stopping piece is locked relative to the guide rail through pins.
A tension end assembly comprising a second inner end plate 5 and a second outer end plate 4; the structure of the second inner end plate 5 is identical to that of the first inner end plate 11, and the structure of the second outer end plate 4 is identical to that of the first outer end plate 12.
The first and second inner end plates and the first and second outer end plates are thick circular steel plates, and a central hole 20 is formed in the middle.
As shown in fig. 3, a plurality of inner egg-shaped holes 15 for the pre-stressed steel bar 6 to pass through and a plurality of inner steel bar through holes 14 for the hot-rolled threaded steel bar 7 to pass through are formed in the first and second inner end plates, the inner egg-shaped holes 15 and the inner steel bar through holes 14 are arranged on the same circumference in a staggered manner one by one, the diameter of the large hole 17 end of each inner egg-shaped hole 15 is larger than the outer diameter of the pier head 13 of the pre-stressed steel bar 6, and the diameter of the small hole 18 end of each inner egg-shaped hole 15 is between the outer diameter of the pre-stressed steel bar 6 and the outer diameter of the pier head 13 thereof so that the pier head 13 can pass through the large hole 17 end and then slide to the small hole 18 end to be stopped; the inner egg-shaped hole 15 comprises a large hole 17, a small hole 18 and a connecting hole 19, the diameter of the large hole 17 is slightly larger than that of the pier head 13 so that the pier head 13 can pass through, the diameter of the small hole 18 and the width of the connecting hole 19 are slightly larger than that of the corresponding steel bar and smaller than that of the pier head 13 so that the pier head 13 can slide to the small hole 18 and then is matched with the hole edge of the small hole 18 in a stopping mode.
As shown in fig. 2, a plurality of outer egg-shaped holes 16 for the hot-rolled twisted steel bars 7 to pass through are formed in the first and second outer end plates, the outer egg-shaped holes 16 are arranged in one-to-one correspondence with the inner steel bar through holes 14, the diameter of the large hole 17 end of the outer egg-shaped hole 16 is larger than the outer diameter of the pier head 13 of the hot-rolled twisted steel bar 7, and the diameter of the small hole 18 end of the outer egg-shaped hole 16 is between the outer diameter of the hot-rolled twisted steel bar 7 and the outer diameter of the pier head 13 thereof so that the pier head 13 can pass through the large hole 17 end and then slide to the small hole 18 end to be stopped. Wherein, a part of the inner reinforcement perforation 14 and the corresponding outer oval hole 16 is reserved, for example, 8 circumferentially and uniformly distributed holes are reserved as connecting holes 19 for connecting the connecting plate 2, the first inner end plate 11 and the first outer end plate 12 by the connecting bolt 3. That is, holes in uniformly distributed states are reserved in the first inner end plate and the first outer end plate for connecting the connecting bolts 3, and as a whole, all the connecting bolts 3 are in circumferentially uniformly distributed states, all the prestressed steel plates are in circumferentially uniformly distributed states, and all the hot-rolled twisted steel bars 7 are in circumferentially uniformly distributed states.
One side of the connecting plate 2 is fixedly connected with the telescopic rod 1, and the other side of the connecting plate is connected with a second inner end plate and a second outer end plate through connecting bolts 3; the connecting plate 2 is a round thick steel plate, and a connecting hole 19 for penetrating and installing the connecting bolt 3 is arranged on the connecting plate corresponding to the reserved inner steel bar through hole 14.
The guide rail 9 is in a semicircular pipe shape, a plurality of positioning pin holes are formed in the inner circumferential surface of the guide rail 9 at intervals along the axial direction, and the stop piece 10 is selectively fixed on the positioning pin holes through positioning pins. Guide rail 9 constitutes the bed die when mixing reinforced concrete tubular pile pours, and 9 edges of guide rail are equipped with the ring flange that is used for with half tubulose last mould releasable connection. The inner and outer egg-shaped holes 16 respectively comprise a large hole 17, a small hole 18 and a connecting hole 19 for connecting the large hole 17 and the small hole 18, and the width of the connecting hole 19 is the same as the diameter of the small hole 18.
When in use, the pier heads 13 at the two ends of each prestressed steel bar 6 are respectively blocked at the small hole 18 ends of the inner egg-shaped holes 15 of the first and second inner end plates, and the pier heads 13 at the two ends of each hot-rolled twisted steel bar 7 are respectively blocked at the small hole 18 ends of the outer egg-shaped holes 16 of the first and second outer end plates; the telescopic rod 1 of the driving device drives the second inner end plate and the second outer end plate to perform stretching movement through the connecting plate 2, so that each prestressed steel bar 6 is stretched firstly, and each hot-rolled threaded steel bar 7 is stretched when the first outer end plate 12 is contacted with the first inner end plate 11.
The specific tensioning process comprises the following steps: calculating the lengths of the prestressed steel bar and the hot-rolled threaded steel bar according to the prestress requirement required to be met by each reinforcing bar of the mixed reinforced concrete tubular pile, wherein the length of the hot-rolled threaded steel bar is greater than that of the prestressed steel bar; respectively processing pier heads at two ends of the prestressed steel bar and the hot-rolled threaded steel bar by a steel bar pier head machine according to calculated blanking; respectively penetrating two ends of each hot-rolled twisted steel bar through inner steel bar holes of the first inner end plate and the second inner end plate, respectively penetrating pier heads through large hole ends of outer egg-shaped holes of the first outer end plate and the second outer end plate, and then sliding the pier heads to small hole ends of the outer egg-shaped holes; respectively penetrating pier heads at two ends of each prestressed steel bar from the large hole ends of the inner egg-shaped holes of the first inner end plate and the second inner end plate, and then sliding to the small hole ends of the inner egg-shaped holes; connecting and fixing the connecting plate and the second inner end plate and the second outer end plate of the tensioning and breaking assembly through connecting bolts, and placing the first inner end plate and the first outer end plate on the guide rail to ensure that the first inner end plate and the first outer end plate can move along the guide rail; the stop piece limits the displacement of the first inner end plate towards the stretching direction, the telescopic rod of the driving device drives the connecting plate to move towards the direction far away from the guide rail, the prestressed steel bar is stretched firstly, and when the first outer end plate moves along the guide rail to be stopped by the first inner end plate, the hot-rolled threaded steel bar starts to be stretched. And hoops are wound around the peripheries of the prestressed steel bars and the hot-rolled threaded steel bars and are bound through binding wires to form a steel reinforcement framework of the mixed reinforced concrete pipe pile. The guide rail is arranged to be in a semicircular pipe shape, a plurality of positioning pin holes are formed in the inner circumferential surface of the guide rail at intervals along the axial direction, and the blocking piece is selectively fixed on the positioning pin holes through positioning pins. The guide rail constitutes the bed die when mixing reinforced concrete tubular pile pours, and the guide rail edge is equipped with the ring flange that is used for with half tubulose last mould releasable connection, connects the back of the upper die utensil, can directly pour concrete tubular pile.
The utility model can realize the tension of various prestressed reinforcement bars of the mixed reinforced concrete pipe pile at one time, and compared with the prior art, the tension device has high tension efficiency, simple and convenient operation and labor saving; compared with the single tensioning mode in the prior art, the one-time tensioning mode ensures that the stress and the deformation of the similar prestressed reinforcements are basically the same, so that the basically uniform prestressed reinforcements are provided in the circumferential direction, and the tubular pile can have stable bearing performance; the device has the advantages that the used parts are fewer and are easily obtained parts, the device is convenient to process, can be directly processed and modified by using on-site materials, is convenient to use, has low cost and is easily accepted by customers; further, the guide rail is not only used for guiding the first inner end plate and the first outer end plate, but also can be used as a lower die for pouring concrete of the pipe pile.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The mixed reinforced concrete pipe pile asynchronous tensioning device is characterized by comprising a guide rail, a first inner end plate and a first outer end plate, wherein the first inner end plate and the first outer end plate freely move along the guide rail under the guidance of the guide rail; the second inner end plate and the second outer end plate are positioned on the other side; the first inner end plate and the second inner end plate are provided with a plurality of inner egg-shaped holes for the pre-stressed steel bars to pass through and a plurality of inner steel bar through holes for the hot-rolled threaded steel bars to pass through, the inner egg-shaped holes and the inner steel bar through holes are arranged on the same circumference in a one-to-one staggered mode, the diameter of the large hole end of each inner egg-shaped hole is larger than the outer diameter of the pier head of each pre-stressed steel bar, and the diameter of the small hole end of each inner egg-shaped hole is between the outer diameter of each pre-stressed steel bar and the outer diameter of the pier head of each pre-stressed steel bar so that the pier head can slide to the small hole end after passing through the large hole end to be stopped; the outer end plates of the first outer end plate and the second outer end plate are fixedly connected through a connecting bolt, and the inner end plate and the outer end plate of the second outer end plate are driven by a driving device to move so as to stretch each prestressed steel bar and each hot-rolled threaded steel bar.
2. The asynchronous tensioning device for the hybrid reinforced concrete pipe pile according to claim 1, wherein the guide rail is in a semicircular pipe shape, a plurality of positioning pin holes are formed in the inner circumferential surface of the guide rail at intervals in the axial direction, and the stop member is selectively fixed to the positioning pin holes through positioning pins.
3. The asynchronous tensioning device for the hybrid reinforced concrete pipe pile according to claim 2, wherein the guide rail forms a lower die for pouring the hybrid reinforced concrete pipe pile, and a flange plate detachably connected with the semicircular upper die is arranged at the edge of the guide rail.
4. The non-synchronous tensioning device for the hybrid reinforced concrete pipe pile according to claim 1, wherein the inner and outer egg-shaped holes respectively comprise large holes, small holes and connecting holes for connecting the large holes and the small holes, and the width of each connecting hole is the same as the diameter of each small hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222546518.8U CN218170851U (en) | 2022-09-26 | 2022-09-26 | Asynchronous tensioning device for mixed reinforced concrete pipe pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222546518.8U CN218170851U (en) | 2022-09-26 | 2022-09-26 | Asynchronous tensioning device for mixed reinforced concrete pipe pile |
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| CN218170851U true CN218170851U (en) | 2022-12-30 |
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| CN202222546518.8U Active CN218170851U (en) | 2022-09-26 | 2022-09-26 | Asynchronous tensioning device for mixed reinforced concrete pipe pile |
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