CN117721798A - Pile forming vibration suppression method for bridge girder erection machine - Google Patents
Pile forming vibration suppression method for bridge girder erection machine Download PDFInfo
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- CN117721798A CN117721798A CN202311784563.XA CN202311784563A CN117721798A CN 117721798 A CN117721798 A CN 117721798A CN 202311784563 A CN202311784563 A CN 202311784563A CN 117721798 A CN117721798 A CN 117721798A
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- 230000001629 suppression Effects 0.000 title claims abstract description 21
- 238000004873 anchoring Methods 0.000 claims description 36
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- 210000001364 upper extremity Anatomy 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 8
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- 238000005553 drilling Methods 0.000 description 3
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Abstract
The invention provides a pile-forming vibration suppression method of a bridge girder erection machine, which relates to the technical field of pile driving and comprises the steps of arranging a beam connecting structure between a first girder body and a second girder body, and connecting the beam connecting structure with a pile frame; the first auxiliary connecting structures are respectively arranged at the connecting positions of the first bearing part and the first beam body and the connecting positions of the second bearing part and the second beam body, so that the first bearing part and the second bearing part are respectively locked with the first beam body and the second beam body; and arranging a second auxiliary connecting structure at the stepping position of the front supporting leg and the corresponding erected tubular pile so as to lock the front supporting leg and the erected tubular pile mutually. The pile-forming vibration suppression method of the bridge girder erection machine effectively improves the influence on pile-forming precision.
Description
Technical Field
The invention relates to the technical field of piling, in particular to a piling vibration suppression method of a bridge girder erection machine.
Background
At present, a pile and beam non-floor construction process is adopted, a pile forming device is additionally arranged at the front end of a bridge girder erection machine to carry out drilling and piling operations, when the pile forming device is constructed, reverse torque of drilling of a drilling machine and piling impact can generate vibration, disturbance of the front end of the bridge girder erection machine is easily caused, a foundation platform of the pile forming device is further caused to be unstable, position of a hole site and the position of a pipe pile are sometimes caused to deviate, pile forming precision is further influenced, because the number of the pipe piles erected in the bridge girder erection process is large, and the construction standard requires that the perpendicularity of the pipe piles after pile forming is not larger than +/-0.5%, and if the number of reworking times is too large, a large amount of manpower and material resource waste can be brought.
Disclosure of Invention
The invention solves the problem of how to reduce the influence of vibration on pile forming precision when a pile forming device is constructed.
In order to solve the problems, the invention provides a pile forming vibration suppression method of a bridge girder erection machine, which comprises a girder, a front supporting leg and a pile forming device, wherein the girder comprises a first girder body and a second girder body which are arranged at intervals in parallel, the front supporting leg comprises a first bearing part and a second bearing part, the first bearing part and the second bearing part respectively support the first girder body and the second girder body, the pile forming device comprises a foundation platform and a pile frame arranged on the foundation platform, the foundation platform is supported between the first girder body and the second girder body, and the pile frame is arranged between the first girder body and the second girder body;
the pile-forming vibration suppression method of the bridge girder erection machine comprises the following steps:
a beam connecting structure is arranged between the first beam body and the second beam body, and the beam connecting structure is connected with the pile frame;
a first auxiliary connecting structure is respectively arranged at the connection positions of the first bearing part and the first beam body and the connection positions of the second bearing part and the second beam body, so that the first bearing part and the second bearing part are respectively locked with the first beam body and the second beam body;
and a second auxiliary connecting structure is arranged at the stepping position of the front supporting leg and the corresponding erected tubular pile so as to lock the front supporting leg and the tubular pile mutually.
Optionally, the beam connecting structure includes a beam body, a first anchoring beam, a second anchoring beam, a first stud, a first nut and a jackscrew, where the beam body passes through the pile frame along the extension direction, and one end of the beam body along the extension direction and the first anchoring beam are respectively located at two opposite sides of the lower guide beam of the first beam body, and are locked to the lower guide beam of the first beam body through the first stud and the first nut; the other end of the beam body along the extending direction and the second anchoring beam are respectively positioned on two opposite sides of the lower guide beam of the second beam body, and are locked to the lower guide beam of the second beam body through the first stud bolts and the first nuts, and the jackscrews are in threaded connection with the beam body and are used for being tightly locked with the pile frame.
Optionally, the adding a beam connection structure between the first beam body and the second beam body, and connecting the beam connection structure with the pile frame includes:
passing the beam body through the pile frame;
the two ends of the beam body along the extending direction are respectively attached to the lower guide beams of the first beam body and the lower guide beams of the second beam body;
the first anchoring beam is arranged on one side, far away from the beam body, of the lower guide beam of the first beam body, and one end, along the extending direction, of the beam body and the first anchoring beam are locked on the lower guide beam of the first beam body through the first stud bolt and the first nut; the second anchor Liang Fang is arranged on one side, far away from the beam body, of the lower guide beam of the second beam body, and the other end of the beam body along the extending direction and the second anchor beam are locked on the lower guide beam of the second beam body through the first stud bolt and the first nut;
and screwing the jackscrews on the beam body until the jackscrews are tightly propped against the pile frame for locking.
Optionally, a first pressure detection device is arranged on the end face, facing the beam body, of the lower guide beam of the first beam body, and a first indicator lamp is arranged on the position, close to the beam body, of the lower guide beam of the first beam body; the end face, facing the beam body, of the lower guide beam of the second beam body is provided with a second pressure detection device, and a second indicator lamp is arranged at a position, close to the beam body, of the lower guide beam of the second beam body;
when the pressure value detected by the first pressure detection device is smaller than a preset pressure value and the pressure value detected by the second pressure detection device is not smaller than the preset pressure value, the first indicator lamp is on for a long time, and the second indicator lamp does not work;
when the pressure value detected by the first pressure detection device is not smaller than a preset pressure value and the pressure value detected by the second pressure detection device is smaller than the preset pressure value, the first indicator lamp does not work, and the second indicator lamp is long-lighted;
when the pressure values detected by the first pressure detection device and the second pressure detection device are smaller than the preset pressure value, the first indicator lamp and the second indicator lamp flash.
Optionally, the first auxiliary connection structure includes a third anchoring beam, a second stud and a second nut, where the third anchoring beam is located on a side of the lower guide beam of the first beam body away from the fixing seat of the first bearing portion or on a side of the lower guide beam of the second beam body away from the fixing seat of the second bearing portion, and is locked on the lower guide beam of the first beam body or the lower guide beam of the second beam body through the second stud and the second nut.
Optionally, the first auxiliary connection structures are respectively disposed at connection positions of the first bearing part and the first beam body and at connection positions of the second bearing part and the second beam body, so that the first bearing part and the second bearing part are respectively interlocked with the first beam body and the second beam body, and the method comprises the following steps:
the third anchoring beam is arranged on one side of the lower guide beam of the first beam body, which is far away from the fixed seat of the first bearing part, and the fixed seat of the first bearing part and the third anchoring beam are locked on the lower guide beam of the first beam body through a second stud bolt and a second nut;
and placing the third anchoring beam on one side of the lower guide beam of the second beam body, which is far away from the fixed seat of the second bearing part, and locking the fixed seat of the second bearing part and the third anchoring beam on the lower guide beam of the second beam body through a second stud bolt and a second nut.
Optionally, the pile-forming vibration suppression method of the bridge girder erection machine further comprises the step of respectively arranging third auxiliary connection structures at the connection positions of the first bearing part and the first girder body and the connection positions of the second bearing part and the second girder body so as to limit the front supporting leg to move relative to the girder.
Optionally, the third auxiliary connection structure includes a first mounting seat, a second mounting seat and a bidirectional screw rod, the first mounting seat is used for being connected with the lower guide beam of the first beam body or the lower guide beam of the second beam body, the second mounting seat is used for being connected with the first bearing part or the second bearing part, the first mounting seat and the second mounting seat are arranged at intervals along the extending direction of the main beam, the bidirectional screw rod includes a sleeve, a first screw rod and a second screw rod, the threads of the first screw rod and the second screw rod are opposite, one end of the first screw rod is rotationally connected with the first mounting seat, and the other end of the first screw rod is in threaded connection with one end of the sleeve; one end of the second screw rod is rotationally connected with the second mounting seat, and the other end of the second screw rod is in threaded connection with the other end of the sleeve.
Optionally, a supporting seat is arranged at one end of the front supporting leg facing the tubular pile; the second auxiliary connection structure comprises a hoop, a third stud bolt, a third nut and a first through hole arranged on the supporting seat, the hoop is encircling the circumferential side wall of the pipe pile, the hoop is provided with a second through hole which is correspondingly arranged on the first through hole, the third stud bolt sequentially penetrates through the first through hole and the second through hole which are correspondingly arranged, and two ends of the third stud bolt are locked through the third nut.
Optionally, the step-on position of the front leg and the corresponding pipe pile is provided with a second auxiliary connection structure, so that the front leg and the pipe pile are locked mutually, and the step-on position comprises:
surrounding the anchor ear on the circumferential side wall of the tubular pile;
after the supporting seat supports the corresponding tubular pile, the anchor ear is rotated to align the first through hole with the second through hole, and the anchor ear is locked on the circumferential side wall of the tubular pile;
and enabling the third stud to sequentially pass through the first through hole and the second through hole, and connecting the nuts at the two ends of the third stud in a threaded manner so as to enable the anchor ear and the supporting seat to be anchored.
Compared with the prior art, the invention has the beneficial effects that:
the main beam of the bridge girder erection machine comprises a first beam body and a second beam body which are arranged at intervals and in parallel, the front supporting leg of the bridge girder erection machine comprises a first bearing part and a second bearing part, the first bearing part and the second bearing part respectively support the first beam body and the second beam body, the piling device of the bridge girder erection machine comprises a foundation platform and a pile frame arranged on the foundation platform, the foundation platform is supported on the first beam body and the second beam body, and the pile frame is arranged between the first beam body and the second beam body; before pile forming operation, a beam connecting structure can be arranged between the first beam body and the second beam body, and the beam connecting structure is connected with the pile frame, so that vibration generated by the pile forming device can be transmitted to the first beam body and the second beam body through the beam connecting structure by the pile frame; the first auxiliary connecting structures are respectively arranged at the connecting positions of the first bearing part and the first beam body and the connecting positions of the second bearing part and the second beam body, so that the first bearing part and the second bearing part are respectively locked with the first beam body and the second beam body, and the first beam body and the second beam body can stably transmit vibration to the front supporting leg; meanwhile, a second auxiliary connecting structure is arranged at the stepping position of the front supporting leg and the corresponding erected tubular pile, so that the front supporting leg and the tubular pile are mutually locked, vibration can be stably transmitted to the tubular pile by the front supporting leg, and finally, the vibration is transmitted to the ground by the tubular pile, and further, the influence on pile forming precision is improved.
Drawings
FIG. 1 is a schematic flow chart of a pile-forming vibration suppression method of a bridge girder erection machine according to an embodiment of the invention;
FIG. 2 is a schematic view of a bridge girder erection machine according to the embodiment of the present invention;
FIG. 3 is a view showing a state of use of the beam connection structure according to the embodiment of the present invention;
FIG. 4 is a schematic structural view of a beam connection structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a front leg supporting a first beam and a second beam in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a first auxiliary connection structure according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a third auxiliary connection structure according to an embodiment of the present invention;
fig. 8 is a use state diagram of a second auxiliary connection structure according to an embodiment of the invention.
Reference numerals illustrate:
1. a main beam; 11. a first beam body; 12. a second beam body; 2. a front leg; 21. a first load bearing portion; 22. a second load bearing portion; 23. a support base; 3. piling device; 31. a base platform; 32. a pile frame; 4. a beam connection structure; 41. a beam body; 42. a first anchor beam; 43. a second anchor beam; 44. a first stud bolt; 45. a first nut; 46. a jackscrew; 5, a step of; a first auxiliary connection structure; 51. a third anchor beam; 52. a second stud bolt; 53. a second nut; 6. a second auxiliary connection structure; 61. a hoop; 62. a third stud bolt; 63. a third nut; 7. a third auxiliary connection structure; 71. a two-way screw rod; 711. a sleeve; 712. a first screw rod; 713. a second screw rod; 72. a first mount; 73. a second mounting base; 8. and (5) tubular piles.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
As shown in fig. 2, 3 and 5, the bridge girder erection machine comprises a girder 1, a front supporting leg 2 and a piling device 3, wherein the girder 1 comprises a first girder body 11 and a second girder body 12 which are arranged at intervals and in parallel, the front supporting leg 2 comprises a first bearing part 21 and a second bearing part 22, the first bearing part 21 and the second bearing part 22 respectively support the first girder body 11 and the second girder body 12, the piling device 3 comprises a foundation platform 31 and a pile frame 32 arranged on the foundation platform 31, the foundation platform 31 is supported on the first girder body 11 and the second girder body 12, and the pile frame 32 is arranged between the first girder body 11 and the second girder body 12.
As shown in fig. 1, the pile-forming vibration suppression method of the bridge girder erection machine according to the embodiment of the invention comprises the following steps:
a beam connecting structure 4 is arranged between the first beam 11 and the second beam 12, and the beam connecting structure 4 is connected with the pile frame 32;
the first auxiliary connecting structures 5 are respectively arranged at the connecting positions of the first bearing part 21 and the first beam body 11 and the connecting positions of the second bearing part 22 and the second beam body 12 so that the first bearing part 21 and the second bearing part 22 are respectively locked with the first beam body 11 and the second beam body 12;
the second auxiliary connection structure 6 is arranged at the stepping position of the front supporting leg 2 and the corresponding erected tubular pile 8 so as to lock the front supporting leg 2 and the tubular pile 8 mutually.
It should be understood that the pile forming vibration suppression method of the bridge girder erection machine is mainly applied to the situation that the front supporting leg 2 can adopt the position tubular pile 8, when the front supporting leg 2 steps on a bridge deck or the ground, the beam connecting structure 4 can be arranged between the first beam body 11 and the second beam body 12, the beam connecting structure 4 is connected with the pile frame 32, and the first auxiliary connecting structure 5 is respectively arranged at the connecting positions of the first bearing part 21 and the first beam body 11 and the connecting positions of the second bearing part 22 and the second beam body 12, so that the first bearing part 21 and the second bearing part 22 are respectively locked with the first beam body 11 and the second beam body 12.
In this way, before the pile forming operation, the beam connecting structure 4 may be disposed between the first beam 11 and the second beam 12, and the beam connecting structure 4 may be connected to the pile frame 32, so that the vibration generated by the pile forming device 3 may be transmitted from the pile frame 32 to the first beam 11 and the second beam 12 through the beam connecting structure 4; the first auxiliary connecting structures 5 are respectively arranged at the connecting positions of the first bearing part 21 and the first beam body 11 and the connecting positions of the second bearing part 22 and the second beam body 12, so that the first bearing part 21 and the second bearing part 22 are respectively locked with the first beam body 11 and the second beam body 12, and the first beam body 11 and the second beam body 12 can stably transmit vibration to the front supporting leg 2; meanwhile, the second auxiliary connecting structure 6 is arranged at the stepping position of the front supporting leg 2 and the corresponding erected tubular pile 8, so that the front supporting leg 2 and the tubular pile 8 are mutually locked, vibration can be stably transmitted to the tubular pile 8 by the front supporting leg 2, and finally, the vibration is transmitted to the ground by the tubular pile 8, and further, the influence on the pile forming precision is improved.
Alternatively, the beam connecting structure 4 includes a beam body 41, a first anchor beam 42, a second anchor beam 43, a first stud bolt 44, a first nut 45, and a jackscrew 46, where the beam body 41 passes through the pile frame 32 along the extension direction, and one end of the beam body 41 and the first anchor beam 42 along the extension direction are respectively located at opposite sides of the lower guide beam of the first beam body 11, and are locked to the lower guide beam of the first beam body 11 by the first stud bolt 44 and the first nut 45; the other end of the beam body 41 in the extending direction and the second anchor beam 43 are respectively located at two opposite sides of the lower guide beam of the second beam body 12, and are locked to the lower guide beam of the second beam body 12 through a first stud bolt 44 and a first nut 45, and a jackscrew 46 is in threaded connection with the beam body 41 and is used for being tightly locked with the pile frame 32.
In this embodiment, the beam body 41 is a truss structure, and the whole of the beam body 41 is in a rectangular structure, as shown in fig. 3 and 4, the beam body 41 passes through the pile frame 32 along the extending direction, one end of the beam body 41 along the extending direction and the first anchor beams 42 are respectively located on the upper and lower sides of the lower guide beam of the first beam body 11, the two sides of the lower guide beam of the first beam body 11 along the extending direction of the beam body 41 are respectively provided with a first stud bolt 44, the first stud bolts 44 sequentially pass through the first anchor beams 42 and the beam body 41, and the two ends are locked by the first nuts 45; the other end of the beam body 41 along the extending direction and the second anchoring beam 43 are respectively positioned at the upper side and the lower side of the lower guide beam of the second beam body 12, the two sides of the lower guide beam of the second beam body 12 along the extending direction of the beam body 41 are respectively provided with a first stud bolt 44, the first stud bolts 44 sequentially penetrate through the second anchoring beam 43 and the beam body 41, and the two ends are locked through a first nut 45; the jackscrews 46 are screwed to the cross beam and are used for tightly locking with the pile frame 32, specifically, the cross beam body 41 is also of truss structure, the cross beam body in the width direction is provided with the jackscrews 46, and the jackscrews 46 can be tightly locked with the pile frame 32 by screwing the jackscrews 46. In this way, the vibration of the pile frame 32 can be transmitted to the first and second beam bodies 11 and 12 through the beam connecting structure 4.
Optionally, adding the beam connecting structure 4 between the first beam 11 and the second beam 12, and connecting the beam connecting structure 4 with the pile frame 32 includes:
passing the beam body 41 through the pile frame 32;
specifically, the pile frame 32 is provided with a passage through which the beam body 41 passes, at which time the beam body 41 can be lifted to a position at the same height as the passage and aligned by the lifting apparatus, and then the beam body 41 is horizontally moved to pass the beam body 41 through the passage of the pile frame 32.
Attaching both ends of the beam body 41 in the extending direction to the lower guide beams of the first beam body 11 and the lower guide beams of the second beam body 12, respectively;
specifically, the beam body 41 is lifted by a crane such as an electric hoist, until both ends of the beam body 41 in the extending direction are respectively attached to the lower guide beams of the first beam body 11 and the lower guide beams of the second beam body 12.
The first anchor beam 42 is placed on one side of the lower guide beam of the first beam body 11 away from the beam body 41, and one end of the beam body 41 in the extending direction and the first anchor beam 42 are locked to the lower guide beam of the first beam body 11 by the first stud bolt 44 and the first nut 45; and a second anchor beam 43 is placed on one side of the lower guide beam of the second beam body 12 away from the beam body 41, and the other end of the beam body 41 in the extending direction and the second anchor beam 43 are locked to the lower guide beam of the second beam body 12 by a first stud bolt 44 and a first nut 45;
specifically, the first anchor beam 42 is placed on the upper side of the lower guide beam of the first beam body 11, and the first stud bolts 44 are respectively provided on both sides of the lower guide beam of the first beam body 11 in the width direction such that the first stud bolts 44 sequentially pass through the first anchor beam 42 and one end of the beam body 41 in the extending direction, and both ends are locked by the first nuts 45; the second anchor beam 43 is placed on the upper side of the lower guide beam of the second beam body 12, and the first stud bolts 44 are respectively provided on both sides of the lower guide beam of the second beam body 12 in the width direction so that the first stud bolts 44 sequentially pass through the second anchor beam 43 and the other end of the beam body 41 in the extending direction, and both ends are locked by the first nuts 45.
The jackscrews 46 on the beam body 41 are screwed until the jackscrews 46 are tightly propped against the pile frame 32.
Specifically, the jackscrew 46 is screwed clockwise, and one end of the jackscrew 46 extends out of the beam body 41 and is attached to the pile frame 32 until the jackscrew and the pile frame are tightly pressed and locked.
Optionally, a first pressure detecting device is arranged on the end face, facing the beam body 41, of the lower guide beam of the first beam body 11, and a first indicator light is arranged on the lower guide beam of the first beam body 11 at a position close to the beam body 41; the end face, facing the beam body 41, of the lower guide beam of the second beam body 12 is provided with a second pressure detection device, and a second indicator lamp is arranged at a position, close to the beam body 41, of the lower guide beam of the second beam body 12;
when the pressure value detected by the first pressure detection device is smaller than a preset pressure value and the pressure value detected by the second pressure detection device is not smaller than the preset pressure value, the first indicator lamp is on for a long time, and the second indicator lamp does not work;
when the pressure value detected by the first pressure detection device is not smaller than a preset pressure value and the pressure value detected by the second pressure detection device is smaller than the preset pressure value, the first indicator lamp does not work, and the second indicator lamp is on for a long time;
when the pressure values detected by the first pressure detection device and the second pressure detection device are smaller than the preset pressure value, the first indicator lamp and the second indicator lamp flash.
It should be understood that, when the pile forming device is operated, the beam body 41 and the lower guide beams of the first beam body 11 and the lower guide beams of the second beam body 12 may be loosened due to vibration. When the beam body 41 is not in tight contact with the lower guide beam of the first beam body 11 and the lower guide beam of the second beam body 12, the vibration transmission effect is affected.
In order to improve the above, in the present embodiment, the first pressure detecting device is provided at the end face of the lower guide beam of the first beam body 11 toward the beam body 41, and the lower guide beam of the first beam body 11 is provided with the first indicator lamp at a position close to the beam body 41; a second pressure detection device is arranged on the end face, facing the beam body 41, of the lower guide beam of the second beam body 12, and a second indicator light is arranged on the position, close to the beam body 41, of the lower guide beam of the second beam body 12;
thus, when the pressure value detected by the first pressure detecting device is smaller than the preset pressure value and the pressure value detected by the second pressure detecting device is not smaller than the preset pressure value, the first indicator lamp is long and is on, and the second indicator lamp does not work, so that an operator is prompted that the connection between the beam body 41 and the lower guide beam of the first beam body 11 is not tight, and at the moment, the beam body 41 and the lower guide beam of the second beam body 12 are still reliably connected without stopping, and maintenance is performed after the work is completed; when the pressure value detected by the first pressure detecting device is not smaller than the preset pressure value and the pressure value detected by the second pressure detecting device is smaller than the preset pressure value, the first indicator lamp does not work, and the second indicator lamp is long and bright, so that an operator is prompted that the connection between the beam body 41 and the lower guide beam of the second beam body 12 is not tight, and at the moment, the beam body 41 and the lower guide beam of the first beam body 11 are still reliably connected without stopping, and maintenance is performed after the work is completed; when the pressure values detected by the first pressure detecting device and the second pressure detecting device are smaller than the preset pressure value, the first indicator lamp and the second indicator lamp flash, so that the operator is prompted to stop the beam body 41, the lower guide beam of the first beam body 11 and the lower guide beam of the second beam body 12 are connected in an untight mode, at the moment, the vibration transmission effect is far from the effect, and the operator is prompted by the flashing of the first indicator lamp and the second indicator lamp, so that the machine is stopped for maintenance.
In this embodiment, the preset pressure value is obtained by performing finite element analysis on the BIM model of the bridge girder erection machine.
In this embodiment, the pile frame 32 is provided with a third pressure detecting device towards the end face of the beam body 41, and the pile frame 32 is provided with a third indicator light near the beam body 41, and when the pressure value detected by the third pressure detecting device is smaller than the preset pressure value, the third indicator light blinks. Thus, the operator is prompted to stop for maintenance.
Optionally, the first auxiliary connection structure 5 includes a third anchoring beam 51, a second stud 52 and a second nut 53, where the third anchoring beam 51 is located on a side of the lower guide beam of the first beam body 11 away from the fixing seat of the first bearing portion 21 or on a side of the lower guide beam of the second beam body 12 away from the fixing seat of the second bearing portion 22, and is locked to the lower guide beam of the first beam body 11 or the lower guide beam of the second beam body 12 by the second stud 52 and the second nut 53.
As shown in fig. 2, 5 and 6, the upper and lower sides of the lower guide beam of the first beam body 11 are respectively provided with a third anchoring beam 51 and a fixed seat of the first bearing part 21, and two ends of the third anchoring beam 51 along the extending direction respectively exceed the lower guide beam of the first beam body 11 and are anchored with the fixed seat of the first bearing part 21 through a second double-head bolt 52 and a second nut 53; the upper and lower sides of the lower guide beam of the second beam body 12 are respectively provided with a third anchoring beam 51 and a fixed seat of the second bearing part 22, and two ends of the third anchoring beam 51 along the extending direction respectively exceed the lower guide beam of the second beam body 12 and are anchored and fixed with the fixed seat of the second bearing part 22 through a second double-head bolt 52 and a second nut 53.
Optionally, the first auxiliary connection structure 5 is disposed at connection positions of the first bearing portion 21 and the first beam 11 and the second bearing portion 22 and the second beam 12, so that the locking of the first bearing portion 21 and the second bearing portion 22 with the first beam 11 and the second beam 12 respectively includes:
the third anchoring beam 51 is arranged on one side of the lower guide beam of the first beam body 11 far away from the fixed seat of the first bearing part 21, and the fixed seat of the first bearing part 21 and the third anchoring beam 51 are locked on the lower guide beam of the first beam body 11 through the second double-head bolt 52 and the second nut 53;
specifically, the third anchor beam 51 is placed on the upper side of the lower guide beam of the first beam body 11 and both ends in the extending direction thereof are caused to protrude beyond the lower guide beam of the first beam body 11, and then anchored by the second double-headed screw 52 and the second nut 53.
The third anchoring beam 51 is placed on the side of the lower guide beam of the second beam body 12 away from the fixed seat of the second load-bearing part 22, and the fixed seat of the second load-bearing part 22 and the third anchoring beam 51 are locked to the lower guide beam of the second beam body 12 by the second double-headed screw 52 and the second nut 53.
Specifically, the third anchor beam 51 is placed on the upper side of the lower guide beam of the second beam body 12 and both ends in the extending direction thereof are caused to protrude beyond the lower guide beam of the second beam body 12, and then anchored by the second double-headed screw 52 and the second nut 53.
Optionally, the pile-forming vibration suppression method of the bridge girder erection machine further comprises the step of respectively arranging third auxiliary connecting structures 7 at the connection positions of the first bearing part 21 and the first girder body 11 and the connection positions of the second bearing part 22 and the second girder body 12 so as to limit the movement of the front supporting leg 2 relative to the main girder 1. In this way, when the piling operation is performed, the situation in which the front leg 2 moves in the extending direction of the main beam 1 or rotates around the main beam 1 due to vibration is effectively improved.
As shown in fig. 7, the third auxiliary connection structure 7 includes a first mounting seat 72, a second mounting seat 73 and a bidirectional screw rod 71, the first mounting seat 72 is used for being connected with a lower guide beam of the first beam body 11 or a lower guide beam of the second beam body 12, the second mounting seat 73 is used for being connected with the first bearing part 21 or the second bearing part 22, the first mounting seat 72 and the second mounting seat 73 are arranged at intervals along the extending direction of the main beam 1, the bidirectional screw rod 71 includes a sleeve 711, a first screw rod 712 and a second screw rod 713, threads of the first screw rod 712 and the second screw rod 713 are opposite, one end of the first screw rod 712 is rotationally connected with the first mounting seat 72, and the other end of the first screw rod 712 is in threaded connection with one end of the sleeve 711; one end of the second screw 713 is rotatably connected to the second mount 73, and the other end is screw-connected to the other end of the sleeve 711. Thus, by twisting the sleeve 711, the pre-tightening force between the first mount 72 and the second mount 73 can be increased by changing the protruding lengths of the first screw 712 and the second screw 713.
Optionally, a supporting seat 23 is arranged at one end of the front supporting leg 2 facing the tubular pile 8; the second auxiliary connection structure 6 comprises a hoop 61, a third stud 62, a third nut 63 and a first through hole arranged on the supporting seat 23, the hoop 61 is encircling the circumferential side wall of the tubular pile 8, the hoop 61 is provided with a second through hole corresponding to the first through hole, the third stud 62 sequentially penetrates through the first through hole and the second through hole correspondingly arranged, and two ends are locked through the third nut 63.
As shown in fig. 8, a supporting seat 23 is disposed at one end of the front leg 2 facing the tubular pile 8, a plurality of first through holes are disposed on the supporting seat 23, a hoop 61 is disposed around the circumferential side wall of the tubular pile 8, a plurality of second through holes corresponding to the first through holes are disposed on the hoop 61, a third stud 62 sequentially penetrates through the first through holes and the second through holes corresponding to the first through holes, and two ends are locked by a third nut 63. In this way, the locking and fixing of the support base 23 and the pipe pile 8 is achieved.
In this embodiment, the third stud bolts 62 between the support base 23 and the anchor ear 61 are uniformly arranged in order to maintain the force balance.
Optionally, the second auxiliary connection structure 6 is disposed at the stepping position of the front leg 2 and the corresponding pipe pile 8, so that the locking of the front leg 2 and the pipe pile 8 includes:
surrounding the hoop 61 on the circumferential side wall of the tubular pile 8;
specifically, the anchor ear 61 may be directly sleeved on the pipe pile 8 after the pipe pile 8 frame 32 is set, or may be attached to the corresponding pipe pile 8 after the front leg 2 steps on the pipe pile 8.
After the supporting seat 23 supports the corresponding tubular pile 8, the anchor ear 61 is rotated to align the first through hole and the second through hole, and the anchor ear 61 is locked to the circumferential side wall of the tubular pile 8;
specifically, after the supporting seat 23 is supported by the corresponding tubular pile 8, there may be misalignment between the first through hole of the supporting seat 23 and the second through hole of the anchor ear 61, and due to the difficulty in adjusting the supporting seat 23, the first through hole and the second through hole may be aligned by adjusting the position of the anchor ear 61 on the tubular pile 8, and finally the anchor ear 61 is locked to the circumferential side wall of the tubular pile 8.
The third stud 62 is sequentially passed through the first through hole and the second through hole, and nuts are screwed to both ends of the third stud 62 to pull and anchor the anchor ear 61 and the support base 23.
Specifically, since the anchor ear 61 and the supporting seat 23 are generally anchored by the plurality of third stud bolts 62, the anchor ear 61 is prevented from loosening or damaging when the anchor is anchored by ensuring a relatively uniform tension at each third stud bolt 62.
Optionally, the bridge girder erection machine further comprises a rear supporting leg, wherein the rear supporting leg comprises a third bearing part and a fourth bearing part, and the third bearing part and the fourth bearing part respectively support the first girder body 11 and the second girder body 12;
the pile-forming vibration suppression method of the bridge girder erection machine further comprises the following steps: the first auxiliary connection structures 5 are respectively arranged at the connection positions of the third bearing part and the first beam body 11 and the connection positions of the fourth bearing part and the second beam body 12, so that the third bearing part and the fourth bearing part are respectively locked with the first beam body 11 and the second beam body 12, and the installation modes of the first auxiliary connection structures 5 at the front supporting leg 2 and the rear supporting leg are the same, and are not repeated here.
The reader will appreciate that in the description of this specification, a description of terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.
Claims (10)
1. The pile forming vibration suppression method for the bridge girder erection machine is characterized by comprising a girder (1), a front supporting leg (2) and a pile forming device (3), wherein the girder (1) comprises a first girder body (11) and a second girder body (12) which are arranged at intervals and in parallel, the front supporting leg (2) comprises a first bearing part (21) and a second bearing part (22), the first bearing part (21) and the second bearing part (22) respectively support the first girder body (11) and the second girder body (12), the pile forming device (3) comprises a foundation platform (31) and a pile frame (32) arranged on the foundation platform (31), the foundation platform (31) is supported between the first girder body (11) and the second girder body (12), and the pile frame (32) is arranged between the first girder body (11) and the second girder body (12);
the pile-forming vibration suppression method of the bridge girder erection machine comprises the following steps:
a beam connecting structure (4) is arranged between the first beam body (11) and the second beam body (12), and the beam connecting structure (4) is connected with the pile frame (32);
a first auxiliary connecting structure (5) is respectively arranged at the connecting positions of the first bearing part (21) and the first beam body (11) and the connecting positions of the second bearing part (22) and the second beam body (12), so that the first bearing part (21) and the second bearing part (22) are respectively locked with the first beam body (11) and the second beam body (12);
and a second auxiliary connecting structure (6) is arranged at the stepping position of the front supporting leg (2) and the corresponding erected tubular pile (8) so as to lock the front supporting leg (2) and the tubular pile (8) mutually.
2. The bridge girder erection machine piling vibration suppression method according to claim 1, wherein the beam connection structure (4) comprises a beam body (41), a first anchoring beam (42), a second anchoring beam (43), a first stud bolt (44), a first nut (45) and a jackscrew (46), the beam body (41) penetrates through the pile frame (32) along the extending direction, one end of the beam body (41) along the extending direction and the first anchoring beam (42) are respectively positioned on two opposite sides of a lower guide beam of the first beam body (11), and are locked to the lower guide beam of the first beam body (11) through the first stud bolt (44) and the first nut (45); the other end of the beam body (41) along the extending direction and the second anchoring beams (43) are respectively positioned on two opposite sides of the lower guide beam of the second beam body (12), the lower guide beam of the second beam body (12) is locked through the first stud bolts (44) and the first nuts (45), and the jackscrews (46) are in threaded connection with the beam body (41) and are used for being tightly locked with the pile frame (32).
3. The method for suppressing vibration of a bridge girder erection machine pile according to claim 2, wherein the step of adding a beam connection structure (4) between the first girder body (11) and the second girder body (12) and connecting the beam connection structure (4) with the pile frame (32) comprises:
-passing the beam body (41) through the pile frame (32);
the two ends of the beam body (41) along the extending direction are respectively attached to the lower guide beams of the first beam body (11) and the lower guide beams of the second beam body (12);
the first anchoring beam (42) is arranged on one side, far away from the beam body (41), of the lower guide beam of the first beam body (11), and one end of the beam body (41) along the extending direction and the first anchoring beam (42) are locked on the lower guide beam of the first beam body (11) through the first stud bolt (44) and the first nut (45); and placing the second anchor beam (43) on one side of the lower guide beam of the second beam body (12) away from the beam body (41), and locking the other end of the beam body (41) along the extending direction and the second anchor beam (43) to the lower guide beam of the second beam body (12) through the first stud bolt (44) and the first nut (45);
the jackscrews (46) on the beam body (41) are screwed until the jackscrews (46) are tightly propped against the pile frame (32).
4. The pile-forming vibration suppression method of the bridge girder erection machine according to claim 1, wherein a first pressure detection device is arranged on the end face of the lower guide beam of the first girder body (11) facing the girder body (41), and a first indicator lamp is arranged on the lower guide beam of the first girder body (11) at a position close to the girder body (41); the end face, facing the beam body (41), of the lower guide beam of the second beam body (12) is provided with a second pressure detection device, and a second indicator lamp is arranged at a position, close to the beam body (41), of the lower guide beam of the second beam body (12);
when the pressure value detected by the first pressure detection device is smaller than a preset pressure value and the pressure value detected by the second pressure detection device is not smaller than the preset pressure value, the first indicator lamp is on for a long time, and the second indicator lamp does not work;
when the pressure value detected by the first pressure detection device is not smaller than a preset pressure value and the pressure value detected by the second pressure detection device is smaller than the preset pressure value, the first indicator lamp does not work, and the second indicator lamp is long-lighted;
when the pressure values detected by the first pressure detection device and the second pressure detection device are smaller than the preset pressure value, the first indicator lamp and the second indicator lamp flash.
5. The pile-forming vibration suppression method of the bridge girder erection machine according to claim 1, wherein the first auxiliary connection structure (5) comprises a third anchoring beam (51), a second double-headed screw (52) and a second nut (53), the third anchoring beam (51) is located at one side of the lower guide beam of the first girder body (11) away from the fixed seat of the first bearing part (21) or one side of the lower guide beam of the second girder body (12) away from the fixed seat of the second bearing part (22), and is locked to the lower guide beam of the first girder body (11) or the lower guide beam of the second girder body (12) through the second stud (52) and the second nut (53).
6. The method of vibration suppression for a bridge girder erection machine according to claim 5, wherein the providing of the first auxiliary connection structure (5) at the connection positions of the first bearing part (21) and the first girder body (11) and the second bearing part (22) and the second girder body (12) so that the first bearing part (21) and the second bearing part (22) are locked with the first girder body (11) and the second girder body (12) respectively includes:
the third anchoring beam (51) is arranged on one side of the lower guide beam of the first beam body (11) far away from the fixed seat of the first bearing part (21), and the fixed seat of the first bearing part (21) and the third anchoring beam (51) are locked on the lower guide beam of the first beam body (11) through a second double-head bolt (52) and a second nut (53);
the third anchoring beam (51) is arranged on one side of the lower guide beam of the second beam body (12) far away from the fixed seat of the second bearing part (22), and the fixed seat of the second bearing part (22) and the third anchoring beam (51) are locked on the lower guide beam of the second beam body (12) through a second double-head bolt (52) and a second nut (53).
7. The method for suppressing vibration of the bridge girder erection machine piling according to claim 1, further comprising providing third auxiliary connection structures (7) at connection positions of the first bearing part (21) and the first girder body (11) and the second bearing part (22) and the second girder body (12) respectively so as to limit the movement of the front supporting leg (2) relative to the main girder (1).
8. The piling vibration suppression method of the bridge girder erection machine according to claim 7, wherein the third auxiliary connection structure (7) comprises a first installation seat (72), a second installation seat (73) and a bidirectional screw rod (71), the first installation seat (72) is used for being connected with a lower guide beam of the first girder body (11) or a lower guide beam of the second girder body (12), the second installation seat (73) is used for being connected with the first bearing part (21) or the second bearing part (22), the first installation seat (72) and the second installation seat (73) are arranged at intervals along the extending direction of the main girder (1), the bidirectional screw rod comprises a sleeve (711), a first screw rod (712) and a second screw rod (713), threads of the first screw rod (712) and the second screw rod (713) are opposite, one end of the first screw rod (712) is rotationally connected with the first installation seat (72), and the other end of the first screw rod (712) is connected with one end of the sleeve (711) through threads; one end of the second screw rod (713) is rotationally connected with the second mounting seat (73), and the other end of the second screw rod is in threaded connection with the other end of the sleeve (711).
9. The pile forming vibration suppression method of the bridge girder erection machine according to claim 1, wherein one end of the front supporting leg (2) facing the tubular pile (8) is provided with a supporting seat (23); the second auxiliary connecting structure (6) comprises a hoop (61), a third stud bolt (62), a third nut (63) and a first through hole arranged on the supporting seat (23), the hoop (61) surrounds the circumferential side wall of the tubular pile (8), the hoop (61) is provided with a second through hole corresponding to the first through hole, the third stud bolt (62) sequentially penetrates through the first through hole and the second through hole which are correspondingly arranged, and two ends of the third stud bolt are locked through the third nut (63).
10. A method of suppressing vibration of a bridge girder erection machine pile according to claim 9, wherein the step-on position of the front leg (2) and the corresponding erected pipe pile (8) is provided with a second auxiliary connection structure (6) to lock the front leg (2) and the pipe pile (8) to each other comprises:
surrounding the hoop (61) on the circumferential side wall of the tubular pile (8);
after the supporting seat (23) supports the corresponding tubular pile (8), the anchor ear (61) is rotated to align the first through hole and the second through hole, and the anchor ear (61) is locked on the circumferential side wall of the tubular pile (8);
the third stud bolts (62) sequentially penetrate through the first through holes and the second through holes, and the nuts are connected to the two ends of the third stud bolts (62) in a threaded mode, so that the anchor clamps (61) and the supporting seats (23) are anchored and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311784563.XA CN117721798A (en) | 2023-12-21 | 2023-12-21 | Pile forming vibration suppression method for bridge girder erection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311784563.XA CN117721798A (en) | 2023-12-21 | 2023-12-21 | Pile forming vibration suppression method for bridge girder erection machine |
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| CN117721798A true CN117721798A (en) | 2024-03-19 |
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| CN202311784563.XA Pending CN117721798A (en) | 2023-12-21 | 2023-12-21 | Pile forming vibration suppression method for bridge girder erection machine |
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| WO2022037112A1 (en) * | 2020-08-17 | 2022-02-24 | 中铁十八局集团有限公司 | Device for high-altitude push and vertical movement for 900t bridge girder erection machine |
| CN214993825U (en) * | 2021-05-08 | 2021-12-03 | 广东力源液压机械有限公司 | Stirring pilot hole pile driver that bridging pile driver was used is put |
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