A bridge deck panel shear stud primary positioning device
By using a bridge deck shear stud initial positioning device with positioning rulers and positioning strips, the problem of inaccurate initial positioning of shear studs in bridges with large curvatures was solved, achieving more efficient construction and quality assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINTSZYAN TRANSPORTEJSHN KONSTRAKSHN GRUP KO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-14
AI Technical Summary
Existing technologies often result in inaccurate initial positioning measurements of shear studs when constructing bridges with significant curves, leading to construction difficulties and quality issues.
The bridge deck shear nail initial positioning device, which includes a positioning ruler and positioning strip, is adopted. The positioning block can be flexibly adjusted through angle fixing parts and hook structure to ensure positioning accuracy.
It improves the positioning accuracy of shear studs, enhances construction efficiency and bridge construction quality, especially for bridges with large curves.
Smart Images
Figure CN224499317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, specifically to a bridge deck shear stud initial positioning device. Background Technology
[0002] Shear studs, also known as weld studs, are used for welding steel beams to the surface and to the steel deck of bridges. They are commonly used for connecting steel beams to reinforced concrete in composite beams.
[0003] The existing installation method for shear studs is as follows: install at a set interval, first lay out a grid on the surface of the steel beam for initial positioning, then drill pre-installed holes at each node of the grid, and finally weld the shear studs at each position. After all the shear studs are welded, the reinforcing steel layer can be laid and tied.
[0004] The existing grid layout method involves manually measuring and setting initial positioning points on both sides of the long side of the steel beam. Then, initial positioning points are set on the wide side of the steel beam in the same way. Finally, the corresponding initial positioning points are connected to form the grid.
[0005] Using this method, construction workers can use a straightedge for measurement when building straight bridges. However, when building bridges with curves, especially those with significant curves, surveyors must adjust the angle of the straightedge to accommodate the changes in curvature. This increases construction complexity, extends the construction period, and the need to constantly change the positioning straightedge can easily lead to variations in the measured dimensions, resulting in inaccurate positioning and causing problems for subsequent construction processes, ultimately affecting the final construction quality. Utility Model Content
[0006] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a bridge deck shear stud initial positioning device, which can conveniently complete the initial positioning of shear studs and improve the positioning accuracy.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a bridge deck shear stud initial positioning device, comprising:
[0008] It includes a positioning ruler and two positioning strips. The positioning ruler has graduations, and the positioning strips include:
[0009] There are multiple positioning blocks, and each positioning block has a scale value set along its length direction;
[0010] There are multiple central shafts, and the wide sides of the multiple positioning blocks are sequentially hinged to form a long strip through the multiple central shafts;
[0011] An angle fixing component is provided between two adjacent positioning blocks, and the angle fixing component can be used to lock the angle between the two positioning blocks.
[0012] Furthermore, the angle fixing component includes an internal gear and an external gear. The internal gear is disposed in the shaft holes of the two positioning blocks. The internal gear is sleeved and fixed on the central shaft. By sliding the central shaft, the external gear can be driven to simultaneously mesh or separate from the internal gears on the two positioning blocks.
[0013] Furthermore, hooks are provided at both ends of the positioning ruler, and a sliding groove is provided on the positioning block along its length direction. The hooks can be hung in the sliding groove and can slide along the sliding groove.
[0014] Furthermore, the hook includes a sliding rod, a pressure plate, a locking nut, and a hook. The sliding groove is an inverted T-shaped groove. The bottom end of the sliding rod is slidably inserted into the sliding groove. The pressure plate is located at the bottom end of the sliding rod and within the larger end of the inverted T-shaped sliding groove. The locking nut is threadedly connected to the sliding rod and is located outside the positioning block. Rotating the locking nut presses it against the surface of the positioning block. The hook is connected to the end of the positioning ruler and can be hung on the sliding rod.
[0015] Furthermore, it also includes a storage component for storing the positioning strip.
[0016] Furthermore, the storage component includes a storage box and a winding shaft. The winding shaft is rotatably disposed inside the storage box. The side wall of the storage box has a wire outlet hole communicating with its inner cavity. The positioning strip is wound around the winding shaft, and the end of the positioning strip can pass through the wire outlet hole.
[0017] The beneficial effects of this utility model are:
[0018] The aforementioned bridge deck shear stud initial positioning device is used by first unlocking the angle fixing components, at which point all positioning blocks are in a free-rotating state. Then, the first positioning strip is laid along one side of the steel beam, locking the angle fixing components as it is laid. After completing one side, symmetrical laying is performed. After laying the positioning strips on both sides of the long side, a positioning ruler is pulled between the two positioning strips according to the scale values on the positioning strips. Positioning lines are then drawn on the bridge surface according to the positioning ruler, and positioning points are set on the drawn positioning lines according to the scale values on the positioning ruler. After completing the first positioning line and positioning points, the positioning ruler is moved along the length of the bridge, referring to the scale values on the positioning blocks, and the second positioning line and positioning points are drawn using the same method. All positioning lines and positioning points are then drawn in the same way. Finally, the corresponding positioning studs can be welded to each positioning point.
[0019] The aforementioned bridge deck shear stud initial positioning device significantly improves the positioning accuracy of the shear studs by allowing the positioning strip to deform with the bridge's curvature, thereby enhancing the construction quality of the bridge. This is particularly beneficial for bridges with large curvatures, greatly improving both production efficiency and construction quality. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0021] Figure 1 A schematic diagram of a bridge deck shear stud initial positioning device provided in an embodiment of this utility model;
[0022] Figure 2 for Figure 1 The diagram shows a positioning strip in a bent state in a bridge deck shear stud initial positioning device.
[0023] Figure 3 for Figure 2 A partial schematic diagram of point B in the middle;
[0024] Figure 4 for Figure 1 The diagram shows a partial lateral view of the positioning strip in a bridge deck shear stud initial positioning device.
[0025] Figure 5 This is a partial schematic diagram of point A in Figure 1.
[0026] Figure 6 for Figure 1 The diagram shows two positioning blocks in a locked state in a bridge deck shear stud initial positioning device.
[0027] Figure label:
[0028] 100. Positioning ruler; 200. Positioning strip; 210. Positioning block; 211. Slide groove; 220. Central shaft; 230. Angle fixing component; 300. Hook; 310. Slide rod; 320. Pressure plate; 330. Locking nut; 340. Hook. Detailed Implementation
[0029] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the invention; therefore, the invention is not limited to the specific embodiments disclosed below.
[0030] Please see Figures 1 to 6 This utility model provides a bridge deck shear stud initial positioning device, including a positioning ruler 100 and two positioning strips 200. Specifically, the positioning block 210 includes a positioning block 210, a central shaft 220, and an angle fixing member 230.
[0031] The positioning ruler 100 has graduations. There are multiple positioning blocks 210, each with graduations along its length. There are multiple central shafts 220, and the wide sides of the positioning blocks 210 are sequentially hinged together to form a long strip. An angle fixing member 230 is provided between two adjacent positioning blocks 210, which can be used to lock the angle between the two positioning blocks 210.
[0032] In use, first unlock the angle fixing piece 230. At this time, all the positioning blocks 210 are in a free-rotating state. Then, lay the first positioning strip 200 along the length of one side of the steel beam, locking the angle fixing piece 230 as you lay it. After completing the laying on one side, lay it symmetrically. After laying the positioning strips 200 on both sides of the long side, pull the positioning ruler 100 between the two positioning strips 200 according to the scale value on the positioning strip 200. Then, draw positioning lines on the bridge surface according to the positioning ruler 100, and set positioning points on the drawn positioning lines according to the scale on the positioning ruler 100. After completing the drawing of the first positioning line and positioning points, move the positioning ruler 100 along the length of the bridge, referring to the scale value on the positioning block 210, and draw the second positioning line and positioning points on the second positioning line in the same way. Then, complete the drawing of all positioning lines and positioning points in the same way. Then, weld the corresponding positioning nails on each positioning point.
[0033] The aforementioned bridge deck shear stud initial positioning device, with its positioning strip 200 deforming with the bridge's curvature, significantly improves the accuracy of shear stud positioning, thereby enhancing the construction quality of the bridge. This is particularly beneficial for bridges with large curvatures, greatly improving both production efficiency and construction quality.
[0034] Specifically, in this embodiment, the angle fixing member 230 includes an internal gear and an external gear. The internal gear is disposed in the shaft hole of the two positioning blocks and is sleeved and fixed on the central shaft 220. By sliding the central shaft 220, the external gear can be driven to simultaneously mesh or separate from the internal gear on the two positioning blocks 210.
[0035] In normal use, all internal and external gears are disengaged, and the positioning blocks 210 can rotate freely. When it is necessary to lock the angle between the two positioning blocks 210, the central shaft 220 is slid along its axial direction, causing the external gear to simultaneously insert into the two internal gears in the two positioning holes. This locks the angle between the two positioning blocks 210.
[0036] In this embodiment, the positioning ruler 100 is provided with hooks 300 at both ends, and the positioning block 210 is provided with a slide groove 211 along its length direction. The hooks 300 can be hung in the slide groove 211 and can slide along the slide groove 211. In use, by sliding the hooks 300, the position can be moved to the accurate position, thereby further improving the positioning accuracy.
[0037] Specifically, the hook 300 includes a slide rod 310, a pressure plate 320, a locking nut 330, and a hook 340. The slide groove 211 is an inverted T-shaped groove. The bottom end of the slide rod 310 is slidably inserted into the slide groove 211. The pressure plate 320 is located at the bottom end of the slide rod 310 and within the larger end of the inverted T-shaped slide groove 211. The locking nut 330 is threadedly connected to the slide rod 310 and is located outside the positioning block 210. Rotating the locking nut 330 presses it firmly against the surface of the positioning block 210. The hook 340 is connected to the end of the positioning ruler 100 and can be hung on the slide rod 310.
[0038] In use, first loosen the locking nut 330, move the slide bar 310 to the corresponding position, hook the hook 340 onto the slide bar 310, and then tighten the locking nut 330.
[0039] Using this method, the positioning ruler 100 can be fixed quickly. Of course, in other embodiments, multiple positioning holes can be opened at intervals along the length of the positioning block 210, and the hook 300 can be scraped onto the positioning holes.
[0040] In another preferred embodiment, the device further includes a storage component for storing the positioning strip 200. Specifically, the storage component includes a storage box and a winding shaft. The winding shaft is rotatably disposed inside the storage box. A wire outlet hole communicating with the inner cavity of the storage box is provided on the side wall of the storage box. The positioning strip 200 is wound around the winding shaft, and the end of the positioning strip 200 can pass through the wire outlet hole.
[0041] When not in use, the positioning strip 200 is wound around the winding spool. When needed, the positioning strip 200 can be pulled out from the wire outlet hole. In practice, a handle can also be provided on the winding spool for easy rotation.
[0042] How to use the above-mentioned bridge deck shear stud initial positioning device:
[0043] In normal conditions, the positioning strip 200 is stored in the storage box. When needed, first pull out the positioning strip 200, then lay the first positioning strip 200 along the length of one side of the steel beam, locking the angle fixing piece 230 as it is laid. After completing the laying on one side, lay the strips symmetrically. After laying the positioning strips 200 on both sides of the long side, then, according to the scale value of the positioning strip 200, set the positioning ruler 100 between the two positioning strips 200, and hook the hooks 340 at both ends of the positioning ruler 100 onto the slide rod 310. The bridge is then secured with locking nuts 330. Positioning lines are drawn on the bridge surface using the positioning ruler 100, and positioning points are set on these lines according to the scale on the ruler 100. After drawing the first and second positioning lines and their corresponding positioning points, the positioning ruler 100 is moved along the length of the bridge, referring to the scale values on the positioning block 210. The same method is then used to draw the second positioning line and its corresponding positioning points. This process is repeated for all width-direction positioning lines and points. Finally, corresponding positioning pins are welded to each positioning point.
[0044] After completing the positioning of the positioning lines and points, release the positioning block 210 to the unlocked free state and store the positioning strip 200 in the storage box. Then, other work related to welding the shear studs can be carried out.
[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A bridge deck shear stud initial positioning device, characterized in that, It includes a positioning ruler and two positioning strips. The positioning ruler has graduations, and the positioning strips include: There are multiple positioning blocks, and each positioning block has a scale value set along its length direction; There are multiple central shafts, and the wide sides of the multiple positioning blocks are sequentially hinged to form a long strip through the multiple central shafts; An angle fixing component is provided between two adjacent positioning blocks, and the angle fixing component can be used to lock the angle between the two positioning blocks.
2. The bridge deck shear stud initial positioning device according to claim 1, characterized in that, The angle fixing component includes an internal gear and an external gear. The internal gear is disposed in the shaft hole of the two positioning blocks. The internal gear is sleeved and fixed on the central shaft. By sliding the central shaft, the external gear can be driven to simultaneously mesh or separate from the internal gear on the two positioning blocks.
3. The bridge deck shear stud initial positioning device according to claim 1, characterized in that, The positioning ruler is provided with hooks at both ends, and the positioning block is provided with a sliding groove along its length. The hooks can be hung in the sliding groove and can slide along the sliding groove.
4. The bridge deck shear stud initial positioning device according to claim 3, characterized in that, The hook includes a sliding rod, a pressure plate, a locking nut, and a hook. The sliding groove is an inverted T-shaped groove. The bottom end of the sliding rod is slidably inserted into the sliding groove. The pressure plate is located at the bottom end of the sliding rod and inside the larger end of the inverted T-shaped sliding groove. The locking nut is threaded to the sliding rod and is located outside the positioning block. Rotating the locking nut presses it against the surface of the positioning block. The hook is connected to the end of the positioning ruler and can be hung on the sliding rod.
5. The bridge deck shear stud initial positioning device according to claim 1 or 4, characterized in that, It also includes a storage component for storing the positioning strip.
6. The bridge deck shear stud initial positioning device according to claim 5, characterized in that, The storage component includes a storage box and a winding shaft. The winding shaft is rotatably disposed inside the storage box. The side wall of the storage box has a wire outlet hole communicating with its inner cavity. The positioning strip is wound around the winding shaft, and the end of the positioning strip can pass through the wire outlet hole.