Real-time monitoring device in asymmetric long-span arch bridge construction

Abstract

The utility model relates to a real-time monitoring device in asymmetric long-span arch bridge construction, which belongs to the field of arch bridge construction and comprises a support and a total station body, and an adjusting structure for conveniently adjusting the height of the total station body is arranged on the inner side of the support. The adjusting structure comprises a frame body fixedly connected to the inner side of the support, a threaded shaft rotationally connected to the inner top wall of the frame body, a hand wheel fixedly connected to the other end of the threaded shaft, and a threaded push block in threaded connection to the outer side of the threaded shaft. The connecting shafts are fixedly connected to the front side and the back side of the threaded push block respectively, the connecting plate is fixedly connected between the top ends of the connecting shafts on the front side and the back side, and connecting assemblies conveniently connected with an adjusting structure are arranged on the left side and the right side of the total station body. According to the real-time monitoring device in the asymmetric large-span arch bridge construction, by introducing an adjusting structure, rapid and accurate adjustment of the height of the total station is achieved, and meanwhile stability and safety in the adjusting process are guaranteed.

Description

Technical Field

[0001] The utility model relates to a real-time monitoring device in the construction of an asymmetric long-span arch bridge, belonging to the field of arch bridge construction. Background Technique

[0002] In the field of bridge engineering, especially for the construction of asymmetric long-span arch bridges, accurate and real-time monitoring is the key to ensuring project quality and safety. As a high-precision measuring instrument, the total station plays a crucial role in bridge construction monitoring. It can provide comprehensive spatial coordinate data for monitoring the deformation, displacement and stress state of the bridge structure, providing a scientific basis for construction decisions.

[0003] However, there are still inconveniences in the use of the total station. Especially in terms of height adjustment, the commonly used height adjustment method of the total station often requires the cooperation of multiple people, with cumbersome operations and a long adjustment process, reducing the efficiency of construction monitoring. During the tight construction period, this inefficient adjustment method obviously does not meet the actual needs. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a real-time monitoring device in the construction of an asymmetric long-span arch bridge, which has the advantages of being convenient for height adjustment and the like.

[0006] (II) Technical Solutions

[0007] To achieve the above purpose of facilitating height adjustment, the utility model provides the following technical solution: A real-time monitoring device in the construction of an asymmetric long-span arch bridge, including a bracket and a total station body, and an adjustment structure for conveniently adjusting the height of the total station body is arranged inside the bracket;

[0008] The adjustment structure includes a frame fixedly connected to the inner side of the bracket, a threaded shaft rotatably connected to the inner top wall of the frame, a hand wheel fixedly connected to the other end of the threaded shaft, a threaded push block threadedly connected to the outer side of the threaded shaft, connecting shafts respectively fixedly connected to the front and back of the threaded push block, and a connecting plate fixedly connected between the tops of the front and rear connecting shafts;

[0009] Connecting components for facilitating connection with the adjustment structure are arranged on both the left and right sides of the total station body.

[0010] Further, the bottom end of the threaded shaft sequentially penetrates through the threaded groove of the threaded push block and the inner bottom wall of the frame and extends to the inner side of the center of the hand wheel and is fixedly connected to the hand wheel.

[0011] Further, the length and width of the threaded push block are respectively equal to the length and width inside the frame body. The number of connecting shafts on both the front and rear sides is two, and four sliding holes adapted to the connecting shafts are provided on the upper surface of the bracket.

[0012] Further, the connecting assembly includes fixing plates respectively fixedly connected to the left side and the right side of the total station body, fixing blocks fixedly connected to the bottom of the fixing plates, elastic telescopic rods fixedly connected to the inner sides of the fixing blocks, mounting plates fixedly connected to the piston rods of the elastic telescopic rods, and positioning shafts fixedly connected to the other sides of the mounting plates.

[0013] Further, positioning ports adapted to the positioning shafts are provided on both the left side wall and the right side wall of the connecting plate. Block insertion and extraction ports adapted to the fixing blocks are provided on both the left side and the right side of the upper surface of the connecting plate. Shaft insertion and extraction ports adapted to the positioning shafts are provided on both the left side and the right side of the upper surface of the connecting plate, and the block insertion and extraction port on the same side is communicated with the shaft insertion and extraction port.

[0014] Further, the left elastic telescopic rod is fixedly connected to the inner right side wall of the left fixing block, and the right elastic telescopic rod is fixedly connected to the inner left side wall of the right fixing block.

[0015] Further, the left end of the left positioning shaft movably penetrates through the inner left side wall of the left fixing block and extends to the inside of the left positioning port, and the right end of the right positioning shaft movably penetrates through the inner right side wall of the right fixing block and extends to the inside of the right positioning port.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present utility model provides a real-time monitoring device in the construction of an asymmetric long-span arch bridge, having the following beneficial effects:

[0018] The real-time monitoring device in the construction of the asymmetric long-span arch bridge realizes the rapid and accurate adjustment of the height of the total station through the introduction of an adjustment structure, while ensuring the stability and safety during the adjustment process, and also avoiding the problem of reduced monitoring efficiency caused by cumbersome operations. In addition, the disassembly and assembly between the total station and the adjustment structure are easy and convenient, facilitating subsequent maintenance and the carrying of the total station. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a perspective view of the frame body, threaded shaft, threaded push block and connecting shaft in the structure of the present utility model;

[0021] Figure 3 is a perspective view of the fixing plate, fixing block and positioning shaft in the structure of the present utility model;

[0022] Figure 4 This is a front schematic view of the present utility model.

[0023] In the figure: 1, support; 2, total station body; 3, frame body; 4, threaded shaft; 5, handwheel; 6, threaded push block; 7, connecting shaft; 8, connecting plate; 9, fixing plate; 10, fixing block; 11, elastic telescopic rod; 12, mounting plate; 13, positioning shaft. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1 to 4 , a real-time monitoring device in the construction of an asymmetric long-span arch bridge, including a support 1 and a total station body 2, and an adjusting structure for conveniently adjusting the height of the total station body 2 is provided inside the support 1.

[0026] As Figure 1 shown, the adjusting structure includes a frame body 3 fixedly connected to the inner side of the support 1, a threaded shaft 4 rotatably connected to the inner top wall of the frame body 3, a handwheel 5 fixedly connected to the other end of the threaded shaft 4, a threaded push block 6 threadedly connected to the outer side of the threaded shaft 4, connecting shafts 7 fixedly connected to the front and back of the threaded push block 6 respectively, and a connecting plate 8 fixedly connected between the tops of the connecting shafts 7 on the front and back sides.

[0027] Connecting components are provided on both the left and right sides of the total station body 2 for facilitating connection with the adjusting structure.

[0028] It should be noted that the bottom end of the threaded shaft 4 sequentially passes through the threaded groove of the threaded push block 6 and the inner bottom wall of the frame body 3 and extends to the inner side of the center of the handwheel 5 and is fixedly connected to the handwheel 5.

[0029] The length and width of the threaded push block 6 are respectively equal to the length and width inside the frame body 3. The number of connecting shafts 7 on both the front and back sides is two, and four sliding holes adapted to the connecting shafts 7 are provided on the upper surface of the support 1.

[0030] The connecting components include fixing plates 9 fixedly connected to the left and right sides of the total station body 2 respectively, fixing blocks 10 fixedly connected to the bottoms of the fixing plates 9, elastic telescopic rods 11 fixedly connected to the inner sides of the fixing blocks 10, mounting plates 12 fixedly connected to the piston rods of the elastic telescopic rods 11, and positioning shafts 13 fixedly connected to the other sides of the mounting plates 12.

[0031] Positioning ports adapted to the positioning shafts 13 are provided on both the left and right side walls of the connecting plate 8. Block insertion and extraction ports adapted to the fixing blocks 10 are provided on both the left and right sides of the upper surface of the connecting plate 8. Shaft insertion and extraction ports adapted to the positioning shafts 13 are provided on both the left and right sides of the upper surface of the connecting plate 8, and the block insertion and extraction ports communicate with the shaft insertion and extraction ports on the same side.

[0032] The left elastic telescopic rod 11 is fixedly connected to the inner right side wall of the left fixing block 10, and the right elastic telescopic rod 11 is fixedly connected to the inner left side wall of the right fixing block 10.

[0033] The left end of the left positioning shaft 13 movably penetrates the inner left side wall of the left fixing block 10 and extends to the inside of the left positioning port, and the right end of the right positioning shaft 13 movably penetrates the inner right side wall of the right fixing block 10 and extends to the inside of the right positioning port.

[0034] In addition, in the linear measurement during construction, there are mainly the elevation measurement of the arch rib and the elevation measurement of the main girder. The elevation monitoring of the arch rib uses the total station back sight orientation method to measure the spatial coordinates of the arch rib control points, so as to monitor its displacement situation; the elevation of the main girder is measured using an electronic level and a supporting invar staff.

[0035] Regarding the linear monitoring of the arch rib, during the assembly stage, the arch foot positioning points and the elevation of each arch segment are monitored; after the arch rib hoisting is completed, the linear shape of the arch rib is measured. 11 linear observation points are arranged for each span of the arch rib, and a total of 22 linear observation points are arranged for the two-span arch rib. Prisms are arranged on the arch rib as measuring points.

[0036] The linear measurement position of the main girder is the center of the main girder top, and the longitudinal bridge direction is the position of the suspenders. Settlement observation nails are welded at the corresponding measuring points on the main girder and marked with red paint. 12 linear observation points are arranged on the side-span main girder, 12 linear observation points are arranged on the main-span main girder, and a linear monitoring point is shared at the connection between the main-span main girder and the side-span main girder.

[0037] Arch rib test conditions: For an arch bridge constructed in segments, 1 test is carried out after the completion of each construction segment, no less than 2 tests during the bridge deck construction process, 1 test should be carried out before and after the bridge deck paving is completed, and 1 monitoring should be carried out before and after the cable adjustment after the completion of the whole bridge construction.

[0038] Main girder test conditions: The linear shape of the main girder should be tested once after the installation of each segment and after the tensioning of each group of suspenders, 1 test should be carried out before and after the bridge deck paving is completed, and 1 monitoring should be carried out before and after the cable adjustment after the completion of the whole bridge construction.

[0039] The working principle of the above embodiments is as follows:

[0040] First, insert the fixing block 10 into the inside of the connecting plate 8 through the block insertion and extraction port. And, insert the positioning shaft 13 into the inside of the connecting plate 8 through the shaft insertion and extraction port. At this time, the elastic telescopic rod 11 drives the mounting plate 12 to move towards the square of the positioning port by virtue of its own elastic stretching property. The mounting plate 12 then drives the positioning shaft 13 to move and extend to the inside of the positioning port. At this time, the fixing block 10 is locked inside the connecting plate 8. Since the fixing block 10 is fixedly connected to the total station body 2 through the fixing plate 9, the total station body 2 is fixedly installed on the connecting plate 8;

[0041] When the height needs to be adjusted, the operator rotates the handwheel 5. The handwheel 5 then drives the threaded shaft 4 to rotate. Since the threaded shaft 4 and the threaded push block 6 are in a threaded connection relationship, when the threaded shaft 4 rotates, the threaded push block 6 will move up and down along the threaded shaft 4. The threaded push block 6 then drives the connecting plate 8 to move up and down through the connecting shaft 7, so as to adjust the height of the total station body 2 installed on the connecting plate 8.

[0042] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0043] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A real-time monitoring device in the construction of an asymmetric long-span arch bridge, comprising a bracket (1) and a total station body (2), characterized in that: An adjusting structure for conveniently adjusting the height of the total station body (2) is provided on the inner side of the bracket (1); The adjusting structure includes a frame body (3) fixedly connected to the inner side of the bracket (1), a threaded shaft (4) rotatably connected to the inner top wall of the frame body (3), a hand wheel (5) fixedly connected to the other end of the threaded shaft (4), a threaded push block (6) threadedly connected to the outer side of the threaded shaft (4), connecting shafts (7) respectively fixedly connected to the front and back of the threaded push block (6), and a connecting plate (8) fixedly connected between the tops of the connecting shafts (7) on the front and back sides; Connecting components for facilitating connection with the adjusting structure are provided on both the left and right sides of the total station body (2).

2. The real-time monitoring device in the construction of an asymmetric long-span arch bridge according to claim 1, wherein: The bottom end of the threaded shaft (4) sequentially penetrates through the threaded groove of the threaded push block (6) and the inner bottom wall of the frame body (3) and extends to the inner side of the center of the hand wheel (5) and is fixedly connected to the hand wheel (5).

3. The real-time monitoring device in the construction of an asymmetric long-span arch bridge according to claim 1, characterized in that: The length and width of the threaded push block (6) are respectively equal to the length and width inside the frame body (3). The number of the connecting shafts (7) on both the front and back sides is two, and four sliding holes adapted to the connecting shafts (7) are provided on the upper surface of the bracket (1).

4. The real-time monitoring device in the construction of an asymmetric long-span arch bridge according to claim 1, characterized in that: The connecting component includes fixing plates (9) respectively fixedly connected to the left and right sides of the total station body (2), fixing blocks (10) fixedly connected to the bottoms of the fixing plates (9), elastic telescopic rods (11) fixedly connected to the inner sides of the fixing blocks (10), mounting plates (12) fixedly connected to the piston rods of the elastic telescopic rods (11), and positioning shafts (13) fixedly connected to the other sides of the mounting plates (12).

5. The real-time monitoring device in the construction of an asymmetric long-span arch bridge according to claim 1, characterized in that: Positioning ports adapted to the positioning shafts (13) are provided on both the left and right side walls of the connecting plate (8). Block insertion and extraction ports adapted to the fixing blocks (10) are provided on both the left and right sides of the upper surface of the connecting plate (8). Shaft insertion and extraction ports adapted to the positioning shafts (13) are provided on both the left and right sides of the upper surface of the connecting plate (8), and the block insertion and extraction ports are communicated with the shaft insertion and extraction ports on the same side.

6. The real-time monitoring device in the construction of an asymmetric long-span arch bridge according to claim 4, characterized in that: The left elastic telescopic rod (11) is fixedly connected to the inner right side wall of the left fixing block (10), and the right elastic telescopic rod (11) is fixedly connected to the inner left side wall of the right fixing block (10).

7. The real-time monitoring device in the construction of an asymmetric long-span arch bridge according to claim 4, characterized in that: The left end of the left positioning shaft (13) movably penetrates through the inner left side wall of the left fixing block (10) and extends to the inner side of the left positioning port, and the right end of the right positioning shaft (13) movably penetrates through the inner right side wall of the right fixing block (10) and extends to the inner side of the right positioning port.

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