Deformation monitoring device for steel bar module of large-dip-angle bridge tower limb

Abstract

A large-dip-angle bridge tower limb reinforcing steel bar module deformation monitoring device comprises a stirrup arranged on the outer side of a longitudinal beam reinforcing steel bar frame, a triangular shroud ring is arranged on the outer side of each corner of the stirrup, every two adjacent triangular shroud rings are connected through a lengthened reinforcing steel bar rod, a laser displacement transmitter is arranged at one end of the outer side of each triangular shroud ring, and a laser displacement receiver is arranged at the other end of the outer side of each triangular shroud ring. According to the utility model, the measurement data of the plurality of sensors are utilized to comprehensively construct the spatial deformation of the whole bridge tower, and the spatial dynamic change information of the whole bridge tower is obtained, so that the comprehensive, accurate and effective monitoring of the deformation of the bridge tower is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge tower monitoring, in particular to a deformation monitoring device for a steel bar module of a large-angle bridge tower limb. Background Art

[0002] During the construction process, the steep-angle bridge tower has a large stress at the contact between the main beam and the web when the steel anchor box of the steep-angle cable-stayed bridge is subjected to force, especially at the end of the force transfer plate between the main beam and the web. Therefore, a number of stirrups will be used to reinforce the outside of the longitudinal beam reinforcement frame to meet the shear strength of the inclined section of the longitudinal beam reinforcement frame.

[0003] In order to ensure that the bridge tower meets the requirements and can bear load stably, it is necessary to monitor the longitudinal beam of the bridge tower. At present, the tilt sensor is often installed at the bottom of the bridge tower to monitor its deformation degree. But in fact, since the deformation of the bridge tower starts from the details, when the bottom tilt sensor detects the deformation of the bridge tower, the bridge tower has actually been deformed to a certain extent, which causes the bridge tower to be severely damaged and cannot be repaired.

[0004] Now, in order to detect the deformation of the bridge tower as early as possible and repair it, a deformation monitoring device for a steel bar module of a large-angle bridge tower limb is provided. Utility Model Content

[0005] The utility model aims to overcome the defects in the above-mentioned prior art and provides a deformation monitoring device for a steel bar module of a large-angle bridge tower limb, which can comprehensively, accurately and effectively monitor the bridge tower and thus promptly repair the bridge tower.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a deformation monitoring device for the steel bar module of a large-inclination bridge tower, including stirrups arranged on the outside of the longitudinal beam to the steel frame, a triangular hoop is arranged on the outside of each corner of the stirrup, adjacent triangular hoops are connected by lengthened steel bars, a laser displacement transmitter is arranged at one end of the outer side of the triangular hoop, and a laser displacement receiver is arranged at the other end.

[0007] As a preferred solution of the utility model, it includes a monitoring plate point located outside each corner of the top of the longitudinal beam reinforcement frame, and a total station used in conjunction with the monitoring plate point is arranged outside each corner of the bottom of the longitudinal beam reinforcement frame.

[0008] As a preferred solution of the utility model, it includes a controller and a data analyzer, and the controller and the data analyzer, the monitoring plate point, the total station, the laser displacement transmitter and the laser displacement receiver are electrically connected.

[0009] As a preferred solution of the utility model, the lengthened steel bar includes a connecting portion and a mounting portion, the connecting portion is formed with an external thread, and the diameter of the mounting portion is larger than the diameter of the connecting portion.

[0010] As a preferred solution of the utility model, the triangular hoop includes a through hole and a slot hole, a mounting portion is arranged in the slot hole, and a connecting portion passes through the through hole and is locked by a bolt.

[0011] As a preferred solution of the utility model, the slot hole and the mounting portion are clearance-matched.

[0012] As a preferred solution of the utility model, the stirrups are right-angle stirrups, and the outer angle of the stirrups is matched with the inner angle of the triangular hoop.

[0013] As a preferred solution of the utility model, the stirrups and the triangular hoop are detachably connected.

[0014] As a preferred solution of the utility model, a plurality of stirrups are arranged vertically at equal intervals along the longitudinal beam toward the steel frame.

[0015] As a preferred solution of the utility model, the laser displacement transmitter on the triangular hoop can be used in conjunction with the laser displacement receiver on the adjacent triangular hoop.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model utilizes the measurement data of multiple sensors to comprehensively construct the spatial deformation of the entire bridge tower and obtain the spatial dynamic change information of the entire bridge tower, thereby realizing comprehensive, accurate and effective monitoring of the deformation of the bridge tower.

[0018] 2. While monitoring the offset deformation of the longitudinal beam to the overall structure of the steel frame, the utility model can also monitor the deformation changes of each group of stirrups from each inner angle. As long as one group of stirrups is deformed, it can be known at the first time, which greatly improves the monitoring ability of the deformation of the longitudinal beam to the steel frame.

[0019] 3. The utility model improves the monitoring capability of the deformation of the longitudinal beam to the steel bar frame, avoiding the problems of late monitoring, slow monitoring and inaccurate monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a vertical cross-sectional view of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model in the horizontal direction;

[0023] The reference numerals in the figure are: longitudinal beam reinforcement frame 1, monitoring plate point 2, total station 3, stirrups 4, triangular hoop 5, lengthened reinforcement rod 6, laser displacement transmitter 7, laser displacement receiver 8, controller 9, data analyzer 10, through hole 51, slot hole 52, connecting part 61, and mounting part 62. DETAILED DESCRIPTION

[0024] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0025] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0026] like Figure 1-Figure 3 As shown, a deformation monitoring device for a steel bar module of a tower limb of a large-inclination bridge includes stirrups 4 arranged on the outside of a longitudinal beam steel bar frame 1, the longitudinal beam steel bar frame 1 and the stirrups 4 both have four right-angle corners, a triangular hoop 5 is arranged on the outside of each corner of the stirrup 4, adjacent triangular hoops 5 are connected by an extended steel bar rod 6, a laser displacement transmitter 7 is arranged at one end of the outer side of the triangular hoop 5, and a laser displacement receiver 8 is arranged at the other end, and the laser displacement transmitter 7 on the triangular hoop 5 can be used in conjunction with the laser displacement receiver 8 on the adjacent triangular hoop 5.

[0027] The stirrups 4 are wrapped around the outside of the longitudinal beam reinforcement frame 1 to enhance the strength of the longitudinal beam reinforcement frame 1. At the same time, the laser displacement receiver 8 indirectly fixed on the stirrups 4 can receive the signal of the adjacent laser displacement transmitter 7 to monitor the deformation of each inner corner of the stirrups 4, so as to determine whether the longitudinal beam reinforcement frame 1 undergoes horizontal deformation.

[0028] The utility model can monitor the deformation of each inner angle of each group of stirrups 4. As long as one group of stirrups 4 is deformed, it can be known at the first time, which greatly improves the monitoring ability of the deformation of the longitudinal beam to the steel frame 1 and avoids the problems of late monitoring, slow monitoring and inaccurate monitoring.

[0029] A monitoring plate point 2 is arranged outside each corner of the top of the longitudinal beam reinforcement frame 1 , and a total station 3 used in conjunction with the monitoring plate point 2 is arranged outside each corner of the bottom of the longitudinal beam reinforcement frame 1 .

[0030] The total station 3 can receive the signal from the top monitoring plate point 2 to monitor the value of the inclination deformation of the longitudinal beam toward the steel frame 1, so as to determine the vertical deformation of the longitudinal beam toward the steel frame 1.

[0031] A controller 9 and a data analyzer 10 are also placed outside the longitudinal beam reinforcement frame 1. The controller 9 and the data analyzer 10, the monitoring plate point 2, the total station 3, the laser displacement transmitter 7 and the laser displacement receiver 8 are electrically connected through wires. The controller 9 is used to supply power to the data analyzer 10, the monitoring plate point 2, the total station 3, the laser displacement transmitter 7 and the laser displacement receiver 8. The controller 9 is also used to control the total station 3 and the laser displacement receiver 8 to receive signals and transmit the signals to the data analyzer 10 so that the data analyzer 10 analyzes and determines whether the longitudinal beam reinforcement frame 1 undergoes spatial deformation, and further determines whether human intervention is required to repair the longitudinal beam reinforcement frame 1.

[0032] The utility model obtains the spatial deformation of the bridge tower and the spatial dynamic change information of the entire bridge tower through the coordinated use of the laser displacement transmitter 7 and the laser displacement receiver 8, and the coordinated use of the monitoring plate point 2 and the total station 3, so as to realize comprehensive, accurate and effective monitoring of the deformation of the bridge tower, improve the monitoring ability of the deformation of the longitudinal beam to the steel frame 1, and avoid the problems of late monitoring, slow monitoring and inaccurate monitoring.

[0033] The lengthened steel bar 6 includes a connecting portion 61 and a mounting portion 62 . An external thread is formed on the connecting portion 61 . The diameter of the mounting portion 62 is larger than that of the connecting portion 61 .

[0034] The triangular hoop 5 includes a through hole 51 and a slot hole 52. The slot hole 52 is not a through hole. A mounting portion 62 is arranged in the slot hole 52. The connecting portion 61 passes through the through hole 51 and is fastened by bolts. The slot hole 52 and the mounting portion 62 are clearance-matched. The clearance between the slot hole 52 and the mounting portion 62 is very small. The mounting portion 62 is clamped in the slot hole 52.

[0035] The mounting portion 62 of the lengthened steel bar 6 is fixed in the slot 52, and the connecting portion 61 is limited in the through hole 51 by a nut. When the lengthened steel bar 6 is fixed, the adjacent triangular hoop 5 is not easily deformed, and the outer side of the triangular hoop 5 is also a right angle. The data obtained by testing the laser displacement transmitter 7 and the laser displacement receiver 8 on the outer side of the triangular hoop 5 without deformation of the triangular hoop 5 are more accurate and reliable.

[0036] The stirrup 4 is a right-angle stirrup, and the outer angle of the stirrup 4 is matched with the inner angle of the triangular hoop 5 , thereby achieving adaptive installation of the triangular hoop 5 on the stirrup 4 .

[0037] The stirrup 4 and the triangular hoop 5 are detachably connected, and the detachable connection includes a bolt connection, a snap connection and a plug connection. The triangular hoop 5 can be connected to the stirrup 4 by bolts, or by snap connection or plug connection, which is convenient for subsequent disassembly.

[0038] A plurality of stirrups 4 are arranged vertically at equal intervals along the longitudinal beam reinforcement frame 1 , so that the horizontal deformation of each section of the longitudinal beam reinforcement frame 1 can be observed, which greatly improves the monitoring capability of the deformation of the longitudinal beam reinforcement frame 1 .

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0040] Although this article uses more of the following figures: longitudinal beam reinforcement frame 1, monitoring plate point 2, total station 3, stirrups 4, triangular stirrups 5, lengthened steel rod 6, laser displacement transmitter 7, laser displacement receiver 8, controller 9, data analyzer 10, through hole 51, slot 52, connecting part 61, mounting part 62 and other terms, it does not exclude the possibility of using other terms; the use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A deformation monitoring device for steel bar modules of a high-inclination bridge tower, characterized in that: It comprises stirrups (4) arranged on the outside of a longitudinal beam reinforcement frame (1), a triangular hoops (5) being arranged on the outside of each corner of the stirrups (4), adjacent triangular hoops (5) being connected by an extended reinforcement rod (6), and a laser displacement transmitter (7) being arranged on one end of the outside of the triangular hoops (5) and a laser displacement receiver (8) being arranged on the other end.

2. The deformation monitoring device for the steel bar module of a high-inclination bridge tower according to claim 1 is characterized by: It comprises a monitoring plate point (2) located outside each corner of the top of the longitudinal beam steel reinforcement frame (1), and a total station (3) used in conjunction with the monitoring plate point (2) is arranged outside each corner of the bottom of the longitudinal beam steel reinforcement frame (1).

3. The deformation monitoring device for the steel bar module of a high-inclination bridge tower according to claim 1 is characterized by: It comprises a controller (9) and a data analyzer (10), wherein the controller (9) and the data analyzer (10), a monitoring plate point (2), a total station (3), a laser displacement transmitter (7) and a laser displacement receiver (8) are electrically connected.

4. The deformation monitoring device for steel bar modules of a high-inclination bridge tower according to claim 1 is characterized in that: The lengthened steel bar (6) comprises a connecting portion (61) and a mounting portion (62); an external thread is formed on the connecting portion (61); and a diameter of the mounting portion (62) is greater than a diameter of the connecting portion (61).

5. The deformation monitoring device for steel bar modules of a high-inclination bridge tower according to claim 1 is characterized in that: The triangular hoop (5) comprises a through hole (51) and a slot hole (52), a mounting portion (62) is arranged in the slot hole (52), and a connecting portion (61) passes through the through hole (51) and is locked by a bolt.

6. The deformation monitoring device for the steel bar module of a high-inclination bridge tower according to claim 5 is characterized by: The slotted hole (52) and the mounting portion (62) are clearance-matched.

7. The deformation monitoring device for steel bar modules of a high-inclination bridge tower according to claim 1 is characterized by: The stirrup (4) is a right-angle stirrup, and the outer angle of the stirrup (4) is adapted to the inner angle of the triangular hoop (5).

8. The deformation monitoring device for the steel bar module of a high-inclination bridge tower according to claim 7 is characterized in that: The stirrup (4) and the triangular hoop (5) are detachably connected.

9. The deformation monitoring device for steel bar modules of a high-inclination bridge tower according to claim 1 is characterized in that: A plurality of stirrups (4) are arranged vertically at equal intervals along the longitudinal beam to the steel bar frame (1).

10. The deformation monitoring device for steel bar modules of a high-inclination bridge tower according to claim 1, characterized in that: The laser displacement transmitter (7) on the triangular ferrule (5) can be used in conjunction with the laser displacement receiver (8) on an adjacent triangular ferrule (5).

Images