Rapid measurement device for line shape of main cable of suspension bridge

Abstract

The utility model provides a suspension bridge main cable line shape rapid measuring device, which comprises a clamping piece and a prism installation piece, the clamping piece is used for clamping a main cable, a telescopic vertical ruler is fixedly arranged on the prism installation piece, the prism installation piece is arranged below the clamping piece, and the prism installation piece and the clamping piece are hinged to each other. And an adjustable stabilizing piece is arranged between the clamping piece and the prism mounting piece. According to the utility model, the upper fastening block and the lower fastening block are detachably connected, the problem of swinging of the tool in actual measurement can be well solved through the adjustable stabilizing piece, and the force between the clamping piece and the prism mounting block can be adjusted, so that the prism mounting block is in a horizontal state; the vertical ruler is telescopic, so that rapid measurement of linear change in the linear measurement process of the main cable is realized. In the linear measurement process, only the distance between the prism mounting block and the lower fastening block needs to be read through the vertical ruler in the initial measurement stage, and the measurement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge linear measurement technical field, concretely relates to a kind of suspension bridge main cable linear rapid measurement device. BACKGROUND

[0002] Large-span suspension bridge is an important component of traffic infrastructure, and is a lifeline project to ensure smooth traffic. With the promotion of traffic power strategy, the infrastructure construction industry in western region of China has entered a new era, and due to the geographical conditions in the western region, it has become a trend to build large-span suspension bridges in such areas.

[0003] Suspension bridge is a flexible bridge structure with main cable bearing bridge load, and the linear of main cable is directly related to the stress safety of structure. The absolute elevation of strand is measured by using total station instrument and triangular height method during construction process. During the measurement operation, the relative elevation measurement auxiliary device needs to be installed at the measurement position when collecting relevant data. The strand elevation measurement tooling generally adopts thin steel plate bending or cutting to form a hexagonal structure to adapt to the surface shape of reference cable, but the aforementioned tooling has poor precision and heavy weight. At the same time, the official website of the State Intellectual Property Office discloses an adjustable main cable strand sag measurement tooling (application number: CN201220430450.0), which realizes accurate measurement of main cable linear by using precision machining to produce a device with high precision and light weight. However, the device is more cumbersome for subsequent measurement result processing, and cannot reflect the linear state of strand in real time on site. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of suspension bridge main cable linear rapid measurement device, overcome the above-mentioned technical problems existing in prior art.

[0005] Therefore, the technical scheme provided by the utility model is as follows:

[0006] A kind of suspension bridge main cable linear rapid measurement device, including clamping part and prism mounting piece, the clamping part is used to clamp main cable, the prism mounting piece is fixed with telescopic staff, the prism mounting piece is arranged below clamping part and the both are hinged, adjustable stabilizing piece is arranged between the clamping part and the prism mounting piece.

[0007] The clamping part includes upper fastening block and lower fastening block, one end of the upper fastening block and the lower fastening block is hinged, and the other end is connected by fastener.

[0008] The prism mounting piece includes prism mounting block, one end of the telescopic staff and the prism mounting block is fixed and connected, and the other end is movable, sleeve is sleeved on the upper part of the telescopic staff, the top end of the sleeve is hinged with the clamping part through spherical hinge joint, the upper part of the telescopic staff and the sleeve are connected by fastener, and horizontal calibration bubble is arranged on the prism mounting block.

[0009] The upper and lower fastening blocks are provided with anti-skid rubber coating.

[0010] The lower end faces of the upper and lower fastening blocks are provided with grooves.

[0011] The adjustable stabilizing member comprises two symmetrically arranged basket bolts, one end of the basket bolt is connected with the sleeve, the other end is connected with the lower surface of the clamping member, and an included angle is formed between the basket bolt and the sleeve.

[0012] The prism mounting block is provided with a horizontal calibration bubble.

[0013] The fastening member is a butterfly type fastening bolt.

[0014] The widths of the lower end faces of the upper and lower fastening blocks are 10-20 cm larger than the diameter of the main cable. The basket bolt is a CO type basket bolt.

[0015] The utility model discloses a kind of suspension bridge main cable linear quick measurement devices, and the upper fastening block and the lower fastening block are detachably connected, and through adjustable stabilizing member, not only the swing problem of tooling in actual measurement can be well solved, but also the force between clamping member and prism mounting block can be adjusted, so that prism mounting block is in horizontal state;Telescopic staff is so that the quick measurement of linear variation in main cable linear measurement process is realized.In linear measurement process, only need to read the distance between prism mounting block and lower fastening block through staff in measurement initial stage, improve measurement efficiency. DRAWINGS

[0016] It is a kind of embodiment structure schematic view of the utility model;

[0017] Figure 1 It is the opened side view of upper fastening block and lower fastening block.

[0018] Figure 2 It is the opened side view of upper fastening block and lower fastening block.

[0019] In the drawing: 1, upper and lower movable hinge; 2, upper fastening block; 3, anti-skid rubber coating; 4, connecting bolt; 5, nut; 6, lower fastening block; 7, spherical joint; 8, basket bolt; 9, stainless steel sleeve; 10, telescopic staff; 11, butterfly type fastening bolt; 12, horizontal calibration bubble; 13, prism mounting block; 14, main cable; 15, connecting hole. DETAILED DESCRIPTION

[0020] The following is by specific embodiment of the utility model, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.

[0021] Reference will now be made to the exemplary embodiments with reference to the attached drawings. The exemplary embodiments can be implemented in any number of ways, and are not limited to the embodiments described herein. It should be noted that the embodiments described herein are merely exemplary in nature and are not intended to limit the scope of the application, which is defined by the appended claims. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. The same reference numerals in different drawings denote the same or similar elements.

[0022] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0023] Embodiment 1

[0024] The utility model provides a kind of suspension bridge main cable line shape rapid measuring device, including clamping piece and prism mounting piece, the clamping piece is used to clamp main cable 14, telescopic staff 10 is fixed on the prism mounting piece, the prism mounting piece is located below clamping piece and both are hinged, adjustable stabilizing piece is equipped between the clamping piece and prism mounting piece.

[0025] Working principle:

[0026] Clamping piece is installed on the main cable 14 to be measured in the way of straddling, after being fixed, adjustable stabilizing piece is used to quickly adjust prism mounting piece to be in horizontal position. After installation, by total station and prism, the elevation of prism mounting piece is obtained by using trigonometric leveling, then the scale of telescopic staff 10 is read, and the absolute elevation of the center of main cable 14 is obtained by adding the two.

[0027] Embodiment 2

[0028] On the basis of embodiment 1, the utility model provides a kind of suspension bridge main cable line shape rapid measuring device, as shown in Figure Figure 1 The clamping piece includes upper fastening block 2 and lower fastening block 6, one end of the upper fastening block 2 and the lower fastening block 6 is hinged, and the other end is connected by fastener.

[0029] When the linear measurement of the main cable 14 is performed, the measuring device is temporarily fixed on the feature points of the main cable 14. The fixing mode is as follows: firstly, the fasteners (connecting bolts 4 and nuts 5) of the upper fastening block 2 and the lower fastening block 6 are loosened, the upper fastening block 2 and the lower fastening block 6 are installed on the main cable 14 to be measured in a straddling manner, and then the fasteners are tightened. In the embodiment, the upper fastening block 2 and the lower fastening block 6 are hinged at one end by the upper and lower movable hinges 1. In order to facilitate the connection of the upper fastening block 2 and the lower fastening block 6 at both ends, the fastening block 2 and the lower fastening block 6 are both provided with an ear plate, and the upper and lower movable hinges 1 and the fasteners are connected with the ear plate.

[0030] Embodiment 3

[0031] On the basis of the embodiment 1, the embodiment provides a linear fast measuring device for the main cable of a suspension bridge, the prism mounting member comprises a prism mounting block 13, one end of the telescopic vertical ruler 10 and the prism mounting block 13 is a movable end, a sleeve 9 is sleeved on the upper part of the telescopic vertical ruler 10, the top end of the sleeve 9 is hinged with the clamping member through a spherical hinge joint 7, the upper part of the telescopic vertical ruler 10 and the sleeve 9 are connected through fasteners, and a horizontal calibration bubble 12 is arranged on the prism mounting block 13.

[0032] The lower end of the telescopic vertical ruler 10 is a movable end, and the zero scale is located in the upper part in the sleeve 9. When the linear shape of the main cable changes, the lower fastening block 6 drives the sleeve 9 to move up and down, so that the telescopic vertical ruler 10 is telescoped, the reading changes, the reading can be quickly read, and the measuring efficiency is high.

[0033] Embodiment 4

[0034] On the basis of the embodiment 2, the embodiment provides a linear fast measuring device for the main cable of a suspension bridge, and the upper fastening block 2 and the lower fastening block 6 are provided with an antiskid rubber coating 3.

[0035] The antiskid rubber coating 3 is used for increasing the friction between the upper fastening block 2, the lower fastening block 6 and the cable to be measured.

[0036] Embodiment 5

[0037] On the basis of the embodiment 2, the embodiment provides a linear fast measuring device for the main cable of a suspension bridge, and the lower end surface of the upper fastening block 2 and the lower fastening block 6 is provided with a groove.

[0038] The width of the lower end surface of the upper fastening block 2 and the lower fastening block 6 is 10-20 cm larger than the diameter of the main cable, so that the groove (not shown) is arranged conveniently, and the lower end surface groove of the upper fastening block 2 and the lower fastening block 6 forms a main cable channel, so that the main cable 14 is clamped conveniently.

[0039] Embodiment 6

[0040] On the basis of embodiment 3, the embodiment provides a suspension bridge main cable linear shape fast measuring device, the adjustable stabilizer includes two symmetrically arranged basket bolts 8, one end of the basket bolt 8 is connected with the sleeve 9, the other end is connected with the lower surface of the clamping piece, and an included angle is formed between the basket bolt 8 and the sleeve 9.

[0041] The basket bolt 8 can be telescoped by using a lead screw, so that the tightness between the lower fastening block 6 and the sleeve 9 can be adjusted, the swing problem of the tooling in actual measurement can be well solved, and the force between the clamping piece and the prism mounting block 13 can be adjusted, so that the prism mounting block 13 is in a horizontal state.

[0042] Embodiment 7

[0043] On the basis of embodiment 3, the embodiment provides a suspension bridge main cable linear shape fast measuring device, as shown in the figure, including the lower fastening block 6 and the upper fastening block 2, one end of the lower fastening block 6 and the upper fastening block 2 is hinged by the upper and lower movable hinge 1, the other end is fastened by the connecting bolt 4 and the nut 5, and the lower fastening block 6 and the upper fastening block 2 are both lined with an anti-skid rubber coating 3. Figure 1

[0044] The upper and lower movable hinge 1 is installed as shown in the figure, the upper and lower movable hinge 1 is fixedly connected with the lower fastening block 6 and the upper fastening block 2 at two ends through the connecting hole 15 and the screw; the upper and lower movable hinge 1 is symmetrically installed with two groups, and the main cable 14 passes through the gap between the two groups of upper and lower movable hinges 1; similarly, the connecting bolt 5 at the other end of the lower fastening block 6 and the upper fastening block 2 is also symmetrically arranged, and the main cable 14 passes through the gap between the two groups of connecting bolts 5. Figure 2

[0045] The lower fastening block 6 is connected with the sleeve 9 through the spherical hinge joint 7, and the sleeve 9 is fastened and connected by the CO type basket bolt 8 in order to ensure firmness and meet the horizontal adjustment requirement; one end of the telescopic staff 10 is arranged in the sleeve 9, the other end is fixedly connected with the prism mounting block 13, and the sleeve 9 is connected with the measuring staff through the fastener (butterfly type fastening bolt 11). The prism mounting block 13 is provided with a horizontal calibration bubble. In the embodiment, the sleeve 9 is a stainless steel sleeve.

[0046] The installation and use method is as follows:

[0047] When the main cable linear shape is measured by using the utility model, the lower fastening block 6 and the upper fastening block 2 are temporarily fixed on the feature points to be measured. The fixing mode is as follows: firstly, the connecting bolt 4 of the lower fastening block 6 and the upper fastening block 2 is loosened, the upper fastening block 2 and the lower fastening block 6 are installed on the main cable to be measured in a straddling mode, then the connecting bolt 4 is fastened, and after installation is completed, the prism mounting plate is quickly adjusted to be in a horizontal position by the basket bolt 8. Since the lower end of the telescopic staff 10 is connected with the prism mounting plate, the telescopic staff 10 is equivalent to the prism rod in the ordinary measuring mode, and can always keep a vertical state in the measuring process.​​

[0048] After the trigonometric leveling is completed, the scale on the telescopic staff 10 is read, and the absolute height of the center of the main cable can be quickly calculated through the relationship between the known main cable diameter and the scale on the staff.

[0049] The utility model discloses a telescopic staff 10 is used to connect the prism mounting block 13 and the lower fastening block 6, and only needs to read the distance between the prism mounting block 13 and the lower fastening block 6 in the linear measurement process, thereby improving the measurement efficiency.

[0050] The above examples are only illustrative of the utility model and do not constitute a limitation on the protection scope of the utility model. Any design identical or similar to the utility model falls within the protection scope of the utility model.

Claims

1. A device for quickly measuring the shape of a main cable of a suspension bridge, characterized in that: The utility model relates to a main cable clamping device, comprising a clamping part for clamping a main cable and a prism mounting part on which a telescopic vertical ruler is fixed, the prism mounting part is arranged below the clamping part and the two are hinged, and an adjustable stabilizing part is arranged between the clamping part and the prism mounting part.

2. The linear shape fast measuring device for main cable of suspension bridge according to claim 1, characterized in that: The clamping part comprises upper fastening blocks and lower fastening blocks, the upper fastening blocks and the lower fastening blocks are hinged at one end and connected by fasteners at the other end.

3. The linear shape fast measuring device for main cable of suspension bridge according to claim 1, characterized in that: The prism mounting part comprises prism mounting blocks, the telescopic vertical ruler and the prism mounting blocks are fixedly connected at one end, the upper part of the telescopic vertical ruler is sleeved with a sleeve, the top end of the sleeve is hinged with the clamping part through a spherical hinge joint, and the upper part of the telescopic vertical ruler and the sleeve are connected by fasteners.

4. The linear shape fast measuring device for main cable of suspension bridge according to claim 2, characterized in that: The upper fastening blocks and the lower fastening blocks are provided with anti-skid rubber coating on the surfaces.

5. The linear shape fast measuring device for main cable of suspension bridge according to claim 2, characterized in that: The lower end faces of the upper fastening blocks and the lower fastening blocks are each provided with a groove.

6. The linear shape fast measuring device for main cable of suspension bridge according to claim 3, characterized in that: The adjustable stabilizing part comprises two symmetrically arranged basket head bolts, one end of the basket head bolt is connected with the sleeve, the other end is connected with the lower surface of the clamping part, and an included angle is formed between the basket head bolt and the sleeve.

7. The linear shape fast measuring device for main cable of suspension bridge according to claim 3, characterized in that: The prism mounting blocks are provided with a horizontal calibration bubble.

8. The linear shape fast measuring device for main cable of suspension bridge according to claim 3, characterized in that: The fasteners are butterfly type fastening bolts.

9. The linear shape fast measuring device for main cable of suspension bridge according to claim 5, characterized in that: The widths of the lower end faces of the upper fastening blocks and the lower fastening blocks are each 10-20 cm larger than the diameter of the main cable.

10. The linear shape fast measuring device for main cable of suspension bridge according to claim 6, characterized in that: The basket head bolts are CO type basket head bolts.

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