A method and supporting device for monitoring the construction line of a concrete continuous beam bridge

Abstract

The present invention discloses a method and supporting device for monitoring the construction alignment of a concrete continuous beam bridge, and relates to the field of monitoring devices. The device includes a main control device and an embedded device. A GNSS elevation monitoring module is disposed in a control box, which is wirelessly connected to a data processing terminal. A connector is hinged at the bottom of the control box, and the connector is connected to the embedded member via an embedded rod. A U-shaped groove is provided at one end of the embedded member away from the GNSS elevation monitoring module, and symmetrically arranged bolt holes are provided on both side walls of the U-shaped groove. The U-shaped groove is used to be clamped onto the steel bars of the steel mesh, and the top of the bolt in the bolt hole abuts against the bottom edge of the steel bar in the U-shaped groove. The present invention adopts the above-mentioned supporting device for monitoring the construction alignment of a concrete continuous beam bridge, and utilizes the GNSS elevation monitoring module to monitor and record the elevation data of each measuring point of the bridge construction section around the clock, replacing manual work to achieve real-time monitoring of the bridge alignment, thereby reducing the risk and improving measurement accuracy to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring devices, and in particular to a method and a matching device for monitoring the construction line of a concrete continuous beam bridge. Background Art

[0002] Bridges, spanning natural or man-made obstacles, offer significant convenience for transportation. Bridge construction, especially for large-span, complex bridges, places high demands on joint precision. Construction accuracy, material properties, and ambient temperature can significantly impact the final closure, leading to deviations. Furthermore, bridge settlement, impacting project quality and even causing collapse, is common. To ensure that the final bridge alignment remains within acceptable tolerances and guarantee the quality and safety of bridge construction, professionals use high-end precision instruments to conduct on-site measurements and monitor the entire construction process during the construction phase, enabling timely action and implementation of adjustments and remedial measures tailored to the current status of the bridge. Failure to effectively monitor bridge construction can lead to deviations, resulting in the inability to complete closure, negatively impacting society, causing significant economic losses, and resulting in waste of labor, funds, and materials. Therefore, continuous improvement, research, and application of bridge construction monitoring technologies and methods are essential.

[0003] Currently, bridge construction monitoring primarily relies on the use of high-precision measuring instruments in conjunction with manual monitoring. Each section of a bridge requires surveyors to make multiple trips to the site for measurements, frequently working at height and posing significant safety risks. During the construction of the first few sections of a continuous concrete beam bridge (such as sections 1-3), the working surface of the bridge deck is relatively small. This requires not only the storage of various construction materials and equipment, but also the frequent movement of personnel across the bridge deck, creating a conflict between on-site construction and monitoring efforts. Furthermore, rising labor wages are consuming significant labor and financial resources.

[0004] Traditional bridge construction monitoring primarily uses high-precision levels to measure the elevation of control points. This data is then analyzed and used to determine the construction elevation for the next beam segment. To establish these elevation control points, three control points are established at the top of each beam's reinforcement mesh before concrete is poured. These points are typically created by randomly finding discarded rebar heads on-site and tying them perpendicularly to the bridge deck. The rebar heads should be positioned so that approximately 10 cm of the upper concrete is exposed after the concrete is poured. This approach utilizes locally available materials and is simple and convenient. However, the elevation control points vary in height, and the rebar varies in thickness. This crude method of establishing these points is often overlooked by on-site construction personnel, who often damage the points and hinder monitoring efforts.

[0005] To reduce manual labor, minimize the likelihood of accidents, and enhance compliance with control points, a monitoring device was designed to replace manual labor. Installed at the specified measurement locations, it provides 24 / 7, real-time, and continuous, high-precision, automated measurements of bridge settlement and deformation. However, existing technologies primarily monitor bridges after completion and are relatively simple in design. Therefore, a device was needed that could monitor bridge alignment during the construction phase while addressing the challenges of manual labor, safety, and low measurement accuracy. Summary of the Invention

[0006] The purpose of the present invention is to provide a method and supporting device for monitoring the construction line shape of a concrete continuous beam bridge to solve the problems existing in the above-mentioned prior art. It can replace manual work to perform real-time monitoring of the bridge line shape during the bridge construction stage, thereby improving measurement accuracy.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] The present invention provides a supporting device for monitoring the linearity of construction of a concrete continuous beam bridge, comprising an embedded device and a main control device, the main control device comprising a connecting part and a control part, the control part comprising a control box, a track block and other structures, the connecting part comprising a connecting part, and a GNSS elevation monitoring module being installed in the control box; the embedded device can fix the main control device equipped with the GNSS elevation monitoring module on the steel mesh in the concrete continuous beam bridge, and the GNSS elevation monitoring module is wirelessly connected to a data processing terminal; the embedded device comprises an embedded part, an end of the embedded part away from the GNSS elevation monitoring module is provided with a U-shaped groove, and two side walls of the U-shaped groove are provided with symmetrically arranged bolt holes, the bolt holes are used for horizontally fixing and passing bolts, the U-shaped groove is used to be clamped on the steel bars of the steel mesh, the top side wall of the bolt in the bolt hole abuts against the bottom edge of the steel bars in the U-shaped groove, and the bolt is fixedly connected with a nut after passing through the two symmetrical bolt holes, so that the steel bars are fixed by the bolt, the nut and the U-shaped groove, so that the embedded part can be fixedly installed on the steel bars. A detachable GNSS elevation monitoring module is connected to the steel mesh in a concrete continuous beam bridge via a pre-embedded device. This replaces manual point measurement and, when installed at the specified measurement location, monitors the bridge's alignment based on the measured elevation data. The standardized, highly durable pre-embedded device standardizes monitoring equipment and effectively prevents damage to points caused by accidental contact by on-site personnel. The individual components of the monitoring device are simple to manufacture and install, and the main control unit can be disassembled and reused after the measurement is completed. Furthermore, the specifications of the pre-embedded connectors can be adjusted based on the specifications of the rebar in the mesh, allowing for controllable adjustments to the measurement location.

[0009] Optionally, the GNSS elevation monitoring module is installed in the control box, a connecting piece is hinged at the bottom of the control box, the embedded device includes an embedded rod connected to the embedded piece, and the bottom of the connecting piece is fixedly connected to the embedded rod of the embedded device by threads.

[0010] Optionally, the connecting member includes a first sleeve and a second sleeve fixedly connected by a solid circular disc, the inner walls of the first sleeve and the second sleeve both having internal threads, the first sleeve being threadedly connected to a telescopic rod, the lower portion of the telescopic rod having external threads, and the telescopic rod being rotated so that its lower portion is threadedly connected to the first sleeve, and the length of the telescopic rod within the first sleeve is adjusted accordingly, thereby achieving telescopic extension and retraction of the telescopic rod within the first sleeve, the side wall of the first sleeve also having bolt holes, which abut the telescopic rod via bolts to prevent the telescopic rod from unscrewing when the main control device is threadedly connected to the embedded rod. To increase the length that can be extended, in one embodiment, the length of the first sleeve is set to be greater than the length of the second sleeve, the top of the telescopic rod having a ball hinge hole, a ball hinge being provided in the ball hinge hole, the top of the ball hinge being fixedly connected to a track block via a ball hinge rod, the top of the ball hinge rod and the bottom of the track block may be connected by threads, welding, or clamping, etc., without specific limitation. A dovetail groove is provided on the top of the track block, and an oblique convex slider matching the dovetail groove is fixedly provided on the bottom of the control box, and the oblique convex slider is slidably set in the dovetail groove; the second sleeve is threadedly connected to the upper part of the embedded rod, and a detachable plug-in or mortise and tenon connection can also be used here.

[0011] Optionally, a ball joint limiting hole connected to the ball joint hole is opened on the side wall of the telescopic rod, and a limiting bolt is connected to the inner thread of the ball joint limiting hole. After the position of the ball joint is adjusted, the limiting bolt is tightened so that the end of the limiting bolt is fixedly abutted against the ball joint to fix the ball joint; a gripping portion is integrally formed on the upper side wall of the telescopic rod to facilitate the rotation and installation of the telescopic rod.

[0012] Optionally, the bottom of the U-shaped groove is a semicircular structure, and the radius of the bottom of the U-shaped groove is the same as the outer diameter of the steel bars of the steel mesh, so that it can be more adapted to the steel bars. For steel bars of different sizes, embedded parts of corresponding sizes are used to make the connection between the embedded parts and the steel bars tighter and more secure.

[0013] Optionally, hand stop holes are provided at both ends of the oblique convex slider, and an L-shaped hand stop is threadedly connected to the hand stop hole, one end of the L-shaped hand stop is fixedly connected to the hand stop hole through a thread, and the side wall of the other end can be fixedly abutted against one end of the track block. After the oblique convex slider slides into the dovetail groove from one end of the dovetail groove, the L-shaped hand stop is installed so that the end of the L-shaped hand stop with the thread is fixedly connected to the hand stop hole, and the other end is arranged vertically downward and fixedly abutted against one end of the track block, thereby limiting the two ends of the dovetail groove to prevent the oblique convex slider from sliding out from the two ends of the dovetail groove; the GNSS elevation monitoring module is installed in the control box, and a box cover is hinged on the top of the control box to provide safety protection.

[0014] Optionally, a solar panel mounting groove is provided on the top of the box cover, and the solar panel mounting groove is used for fixing and installing a solar panel. An antenna hole is provided on one side of the top of the box cover, and the antenna of the GNSS altitude monitoring module can be passed through the antenna hole; the control box is also provided with a power module and a wireless transceiver module electrically connected to the GNSS altitude monitoring module, and the power module is connected to the solar panel through a solar-electric energy conversion module; a rubber strip is provided at the bottom edge of the box cover to prevent rainfall and the like from penetrating into the control box through the gap in the box cover.

[0015] Optionally, the control box is provided with a level, which includes a cylindrical level bubble, which is arranged in the mounting groove of the outer wall of the control box, and is limited on the outside by a cover plate fixedly connected to the two ends of the mounting groove of the outer wall of the control box, so that the control box can be leveled horizontally and vertically; specifically, the control box has an outer wall mounting groove for the control box opened on the outside above a side wall perpendicular to the oblique convex slider, and the control box has an outer wall mounting groove for the control box opened on the outside below a side wall parallel to the oblique convex slider, a cylindrical level bubble is installed in the mounting groove of the outer wall of the control box, and a cover plate is fixed on the outside of the cylindrical level bubble, and the two ends of the cover plate are fixedly connected to the side walls of the control box.

[0016] Optionally, two tenons are symmetrically provided on one side of the bottom of the box cover, and two circular mortises are fixedly provided on the top of one side wall of the control box, and the two tenons can be movably and symmetrically provided in the two circular mortises; a lock holding part is movably passed through the end of the box cover away from the tenon, and a horizontally arranged locking column is fixed on the bottom side wall of the lock holding part, and a concave lock buckle is provided on the inner side of the upper side wall of the control box away from the circular mortise, and the lock holding part is rotated so that the locking column can be clamped at the lock buckle.

[0017] The present invention also provides a method for monitoring the construction alignment of a concrete continuous beam bridge, comprising the following steps:

[0018] Step 1: Before construction, perform structural analysis and calculation based on the bridge design drawings and models to determine the formwork elevation;

[0019] Step 2: Module assembly: Assemble the solar module, solar-to-electrical energy conversion module, power module, GNSS altitude monitoring module, and wireless transceiver module into the control box, connect the circuits, and then debug;

[0020] Step 3: Assemble the main control device. Connect and secure the oblique convex slider at the bottom of the control box to the dovetail groove of the track block. Then install the control box on the ball joint at the top of the telescopic rod through the track block.

[0021] Step 4: Set up a support at the first section, install a formwork and tie steel bars on top of the pier, securely install the embedded device for the linear monitoring system at the measuring point, attach the main control unit to the embedded rod of the embedded device via connectors, and adjust the length of the telescopic rod until the linear monitoring system reaches the set height. After installation, use the GNSS elevation monitoring module to conduct the first monitoring before concrete pouring, and monitor and record elevation data for each measuring point in the first section around the clock.

[0022] Step 5: Concrete pouring and curing. After the concrete has solidified for 2 to 3 days after pouring, conduct a second monitoring and record the elevation data of each measuring point. Perform an error analysis on the data measured twice before and after concrete pouring, and perform a structural analysis based on the error correction design parameters to calculate the formwork elevation of the next section. After the construction and monitoring of the first section are completed, the main control device of the linear monitoring device is removed from the first section and installed in the second section for construction and monitoring of the second section. During the construction of each section, perform an error analysis based on the measurement data to correct the formwork elevation section by section.

[0023] In step six, the remaining sections are constructed using a hanging basket construction method, and the assembly of the embedded devices and main control devices in steps four and five, as well as the subsequent monitoring steps, are repeated. The construction and monitoring of each stage are repeated in a cycle, and the monitoring data is analyzed in real time to ensure that the bridge line shape is within the allowable error range.

[0024] Compared with the prior art, the present invention has achieved the following technical effects:

[0025] The present invention provides a device for monitoring the construction line of a concrete continuous beam bridge. The connecting part and the control part constitute a main control device. The main control device is connected to the steel mesh in the concrete continuous beam bridge through an embedded device to achieve fixed-point measurement. After the measurement is completed, the main control device can be disassembled and reused. At the same time, the embedded parts can be replaced according to the specifications of the steel bars in the steel mesh. By using a GNSS elevation monitoring module, labor costs can be reduced, construction risks can be reduced, and monitoring efficiency can be improved, achieving a visual and dynamic monitoring effect. The monitoring device is componentized, easy to assemble and disassemble, and has adjustability. The overall structure is compact and reusable, reducing costs. The monitoring device uses the GNSS global navigation satellite system to enable real-time three-dimensional monitoring of the zero-block reference point, effectively avoiding errors caused by the displacement of the rigid body of the pier. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of the linear monitoring device for the construction of a concrete continuous beam bridge according to the present invention;

[0028] Figure 2 This is a schematic diagram of the connection structure between the linear monitoring device and the steel mesh for the concrete continuous beam bridge construction of the present invention;

[0029] Figure 3 This is a schematic diagram of the embedded part structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the bolt structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the nut structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the embedded rod structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the telescopic rod structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the track block structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the track block of the present invention from another angle;

[0036] Figure 10 This is a schematic diagram of the ball joint structure of the present invention;

[0037] Figure 11 This is a schematic diagram of the connection between the ball joint and the track block of the present invention;

[0038] Figure 12 This is a schematic diagram of the control box structure of the present invention;

[0039] Figure 13 This is a schematic diagram of the structure after the control box and the cover plate are connected;

[0040] Figure 14 This is a schematic diagram of the box cover structure of the present invention;

[0041] Figure 15 This is a schematic diagram of the bottom structure of the box cover of the present invention;

[0042] Figure 16 This is a schematic diagram of the structure after the box cover and the control box are connected;

[0043] Figure 17 This is a schematic diagram of the connection between the control box and the track block of the present invention;

[0044] Figure 18 This is a schematic diagram of the L-shaped hand guard structure of the present invention;

[0045] Figure 19 This is a schematic diagram of the connector structure of the present invention;

[0046] Figure 20 This is a schematic diagram of the change of construction measurement points from block 0 to block 1 of the present invention;

[0047] Figure 21 This is a flow chart of the method for monitoring the construction alignment of a concrete continuous beam bridge according to the present invention;

[0048] Figure 22 This is a schematic diagram of the modules in the control box of the present invention;

[0049] Figure 23 This is a structural diagram of the main control device of the present invention;

[0050] Figure 24 This is a structural diagram of the embedded device of the present invention;

[0051] Explanation of the accompanying drawings: 1-embedded parts, 2-steel mesh, 3-control box, 4-U-shaped groove, 5-embedded rod, 6-bolt hole, 7-bolt, 8-nut, 9-first sleeve, 10-second sleeve, 11-telescopic rod, 12-ball hinge hole, 13-ball hinge, 14-ball hinge rod, 15-track block, 16-dovetail groove, 17-oblique convex slider, 18-ball hinge limiting hole, 19-grip, 20-hand block hole, 21-L-shaped hand block, 22-box cover, 23-solar panel, 24-control box outer wall mounting groove, 25-cover plate, 26-tenon, 27-mortise, 28-lock grip. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0053] The purpose of the present invention is to provide a method and supporting device for monitoring the construction line shape of a concrete continuous beam bridge to solve the problems existing in the above-mentioned prior art. It can replace manual work to perform real-time monitoring of the bridge line shape during the bridge construction stage, thereby improving measurement accuracy.

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] Reference Attachment Figure 1 ~Attachment Figure 19 The present invention provides a kind of concrete continuous beam bridge construction line monitoring supporting device, such as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 、 Figure 19 、 Figure 23 and Figure 24As shown, it includes a main control device fixedly arranged on a steel mesh 2 in a concrete continuous beam bridge through an embedded device, the main control device includes a control box 3, a GNSS elevation monitoring module is installed in the control box 3, and the GNSS elevation monitoring module is wirelessly connected to a data processing terminal; the embedded device includes an embedded part 1 and an embedded rod 5, and a U-shaped groove 4 is provided at one end of the embedded part 1 away from the GNSS elevation monitoring module; the main control device also includes a telescopic rod 11, a ball hinge hole 12 is provided at the top of the telescopic rod 11, a ball hinge 13 with a spherical structure is provided in the ball hinge hole 12, the ball hinge hole 12 is approximately 3 / 4 of the ball hinge 13, and the adjustability of the upper end component is achieved through the ball hinge 13, and the top of the ball hinge is fixedly connected to the track block 15 through the ball hinge rod 14, and a threaded section is left at the upper end of the ball hinge rod 14 and a section of round rod is extended to increase the adjustment range of the ball hinge, and the top of the ball hinge rod 14 and the bottom of the track block 15 can be connected by threads. A dovetail groove 16 is provided on the top of the track block 15, and an oblique convex slider 17 matching the dovetail groove 16 is fixedly provided at the bottom of the control box 3. The oblique convex slider 17 is slidably arranged in the dovetail groove 16, effectively avoiding vertical displacement. At the same time, the lateral size of the track block 15 is smaller than that of the oblique convex slider 17, saving materials; the connecting piece includes a first sleeve 9 and a second sleeve 10 fixedly connected by a solid flat disc, and the second sleeve of the connecting piece is fixedly connected to the end of the embedded part 1 away from the U-shaped groove 4 through the embedded rod 5, and the two side walls of the U-shaped groove 4 are symmetrically arranged. Bolt hole 6 is used to pass bolt 7 through the bolt hole 6 for horizontal fixation. U-shaped groove 4 is used to clamp onto the steel bar of steel mesh 2. The top side wall of bolt 7 in bolt hole 6 abuts the bottom edge of the steel bar in U-shaped groove 4. Bolt 7 is fixedly connected with nut 8 after passing through two symmetrical bolt holes. Thus, the steel bar is fixed by bolt 7, nut 8 and U-shaped groove 4, so that embedded part 1 can be fixedly installed on the steel bar. The material of bolt 7 and nut 8 is the same as that of ordinary bolts and nuts. The cross-section is similar to plum blossom shape, which is convenient for manual tightening and easy to use. Among them, the diameter, length and thread of bolt 7 are determined by the threaded hole, depth and thread line reserved in each component, which plays a connecting and fixing role. The main control device equipped with GNSS elevation monitoring module is fixed to the steel mesh of concrete continuous beam bridge through embedded device. Instead of manual fixed point measurement, it is installed at the measurement position required by the specification. The bridge alignment is monitored based on the measured elevation data. The unified and highly durable embedded device realizes the standardization of monitoring equipment and effectively prevents the damage of points due to accidental touch by on-site personnel. The monitoring device's components are simple to manufacture and easy to install, and the main control unit can be disassembled and reused after measurement is completed. Furthermore, the embedded components can be changed to match the specifications of the rebar in the mesh, and can be adjusted based on the on-site conditions of the measurement location.

[0056] The inner walls of the first sleeve 9 and the second sleeve 10 are both provided with internal threads, and the first sleeve 9 is threadedly connected to the telescopic rod 11, and the lower part of the telescopic rod 11 has an external thread. By rotating the telescopic rod 11, its lower part is threadedly connected to the first sleeve 9, and the length of the telescopic rod 11 in the first sleeve 9 is adjusted accordingly to realize the telescopic rod 11 in the first sleeve. In order to make it possible to extend and retract the length, in one embodiment, the length of the first sleeve 9 is set to be greater than the length of the second sleeve 10; the second sleeve 10 is threadedly connected to the upper part of the embedded rod 5. The embedded rod 5 is made of steel and has threads at both ends. For easy distinction and installation, the side with the shorter thread is the embedded end, which is threadedly connected to the end of the embedded part 1 away from the U-shaped groove 4, and the side with the longer thread is the connecting end, which is connected to the second sleeve 10 of the main control device. Its length, diameter and thread specifications are all determined by the threaded holes reserved in each end connector. During assembly, the embedded end of the embedded rod 5 is screwed into the threaded hole reserved at the upper end of the embedded part until it cannot rotate. To prevent the tightened end from causing the other end to rotate and loosen, a threaded hole is provided on the side of the first sleeve 9, and then a bolt is tightened to fix and limit the telescopic rod inserted in the first sleeve. The embedded part is installed at the measuring point corresponding to the steel mesh through the U-shaped groove 4. The semicircle at the bottom end of the U-shaped groove 4 is concentric with the steel mesh steel bar, so that it can be more compatible with the steel bar. For steel bars of different sizes, embedded parts of corresponding sizes are used to make the connection between the embedded part 1 and the steel bar more compact and firm. Two bolts are respectively inserted into the two bolt holes on the side of the embedded part and screwed with nuts until the embedded part cannot rotate or move in the steel mesh, completing the assembly of the embedded device.

[0057] The side wall of the telescopic rod 11 is provided with a ball joint stopper hole 18 that communicates with the ball joint hole 12. A stopper bolt is threadedly connected to the ball joint stopper hole 18. After adjusting the ball joint's position, the stopper bolt is tightened until the end of the stopper bolt abuts against the ball joint, securing the joint. A grip 19 is integrally formed on the upper side wall of the telescopic rod 11 to facilitate rotation and installation of the telescopic rod 11. During assembly, the ball joint's spherical portion is inserted into the pre-reserved ball joint hole at the top of the telescopic rod. After adjusting the ball joint's position, the ball joint is tightened securely with bolts provided through the side wall of the ball joint hole. The threads at the top of the ball joint securely rotate into the pre-reserved threaded holes in the track block.

[0058] Further preferably, hand stop holes 20 are provided at both ends of the oblique convex slider 17, and an L-shaped hand stop 21 is connected to the inner thread of the hand stop hole 20. One end of the L-shaped hand stop 21 is fixedly connected to the hand stop hole 20 through a thread, and the side wall of the other end can be fixedly abutted against one end of the track block 15. After the oblique convex slider 17 slides into the dovetail groove from one end of the dovetail groove, the L-shaped hand stop 21 is installed so that the end of the L-shaped hand stop 21 with a thread is fixedly connected to the hand stop hole 20, and the other end is arranged vertically downward and fixedly abutted against one end of the track block 15, thereby limiting the two ends of the dovetail groove to prevent the oblique convex slider from sliding out from the two ends of the dovetail groove, thereby limiting the left and right displacement of the oblique convex slider.

[0059] The GNSS altitude monitoring module is installed in the control box 3. The middle of the top of the control box 3 is concave, forming a thin-walled concave box to reduce the use of materials. The top of the control box 3 is hinged with a box cover 22, which plays a safety role. The top of the box cover 22 is provided with a solar panel mounting groove, which is used to fix the solar panel 23. The top side of the box cover 22 is provided with an antenna hole, and the antenna of the GNSS altitude monitoring module can be inserted into the antenna hole; Figure 22 As shown, the control box 3 is also provided with a power module and a wireless transceiver module electrically connected to the GNSS altitude monitoring module. The power module is connected to the solar panel of the solar module through the solar-electric energy conversion module. A rubber strip is provided at the bottom edge of the box cover 22 to prevent rain and other substances from seeping into the control box through the gap in the box cover. A control box outer wall mounting groove 24 is provided on the outer side of the upper side of a side wall of the control box 3 that is perpendicular to the oblique convex slider. A control box outer wall mounting groove 24 is provided on the outer side of the lower side of the side wall of the control box 3 that is parallel to the oblique convex slider. A cylindrical level is installed in the control box outer wall mounting groove 24. A cover plate 25 is fixed to the outer side of the cylindrical level. Both ends of the cover plate 25 are fixedly connected to the side wall of the control box 3. The cylindrical level is movably arranged in the groove, and its outer side is limited by the cover plate, so that it can be leveled vertically and horizontally. Two tenons 26 are symmetrically provided on one side of the bottom of the box cover 22, and two circular mortises 27 are fixedly provided on the top of one side wall of the control box 3. The two tenons 26 can be movably and symmetrically arranged in the two circular mortises 27. A lock grip 28 is movably provided on the end of the box cover 22 away from the tenon. A horizontally arranged locking column is fixedly provided on the bottom side wall of the lock grip 28. A concave lock buckle is provided on the inner side of the upper side wall of the control box 3 away from the circular mortises. By rotating the lock grip 28, the locking column can be snapped into the lock buckle to buckle and fix the box cover 22. During assembly, the solar panel (which also has a reserved hole and a circular hole reserved for the lock grip) is installed on the top of the box cover, the reserved holes are aligned, and the four sides are glued firmly with waterproof glue. The tenon on the bottom left side of the box cover is inserted into the mortise on the top left side of the control box so that the box cover can move around this axis. After the instruments in the assembly control box are installed, close the box cover and rotate the lock handle of the box cover to the right to drive the inner lock to engage with the lock on the right side of the assembly control box to lock the box cover.

[0060] In a specific embodiment, the present invention also provides a method for monitoring the construction line of a concrete continuous beam bridge, referring to Figure 20 and Figure 21 As shown, it includes: before construction, structural analysis and calculation are carried out according to the bridge design drawings and models to determine the formwork elevation; the GNSS elevation monitoring module and the wireless transceiver module are assembled in the control box, and debugging is carried out after the lines are connected; the main control device is assembled, the oblique convex slider at the bottom of the control box is connected and fixed with the dovetail groove of the track block, and then the control box is installed on the ball joint at the top of the telescopic rod through the track block; a bracket is set up at block No. 0, the formwork is installed on the top of the pier, the steel bars are tied, and monitoring devices are installed at the measuring point positions (i.e., the middle, left, and right positions in the middle and both ends of block No. 0), which are respectively recorded as 0-C, L-0-C, L-0-L, L-0-R, R-0-C, R-0-L, and R-0-R (where L represents the left end, C represents the middle, R represents the right end, and 0 represents block No. 0, and L-0-C is the middle position of the end of block No. 0 on the left end). After installation, the GNSS elevation monitoring module was used for the first monitoring before concrete pouring. Elevation data from each measuring point in Block 0 was monitored and recorded around the clock. Concrete for Block 0 was then poured and cured. After the concrete had set and hardened for 2-3 days, elevation data from each measuring point was again monitored and recorded. Error analysis was performed on the data obtained before and after the concrete pouring. Design parameters were modified based on the errors, and structural analysis was performed to calculate the formwork elevation for the next section. After the concrete had cured to the design strength, a hanging basket was installed. The next section, Block 1, was poured symmetrically using the hanging basket. Formwork was installed, rebar was tied, and monitoring devices were installed at the measuring points in Block 1, designated L-1-C, L-1-L, L-1-R, R-1-C, R-1-L, and R-1-R. Simultaneously, the main control devices at L-0-C, L-0-L, L-0-R, R-0-C, R-0-L, and R-0-R were removed. After installation is complete, elevation data at each measuring point is monitored and recorded. Concrete for block No. 1 is then poured and cured. Once the concrete has set and hardened, measurements are taken and recorded again. Error analysis is performed on the two measurements, which is used to modify design parameters for structural analysis and to begin construction monitoring of the next section. This process is repeated throughout the subsequent stages of construction and monitoring. Real-time analysis of monitoring data is performed to ensure that the bridge alignment is within the allowable error range.

[0061] In the description of the present invention, it should be noted that the terms "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A method for monitoring the construction alignment of a concrete continuous beam bridge, characterized by: A supporting device for monitoring the construction line of a concrete continuous beam bridge is used, and the supporting device for monitoring the construction line of a concrete continuous beam bridge includes a pre-embedded device and a main control device. The main control device includes a control box, in which a GNSS elevation monitoring module is installed, and the GNSS elevation monitoring module is wirelessly connected to a data processing terminal; the main control device also includes a telescopic rod, a ball hinge hole is provided on the top of the telescopic rod, and a ball hinge with a spherical structure is provided in the ball hinge hole; the pre-embedded device can fix the main control device equipped with the GNSS elevation monitoring module to the steel mesh in the concrete continuous beam bridge, and the GNSS elevation monitoring module is wirelessly connected to the data processing terminal; the pre-embedded device includes an embedded part, and a U-shaped groove is provided at one end of the embedded part away from the GNSS elevation monitoring module, and symmetrically arranged bolt holes are provided on both side walls of the U-shaped groove, and bolts are used for horizontally fixing and passing through the bolts, and the U-shaped groove is used to be clamped on the steel bars of the steel mesh, and the top of the bolt in the bolt hole abuts against the bottom edge of the steel bar located in the U-shaped groove; The monitoring method comprises the following steps: Step 1: Before construction, perform structural analysis and calculation based on the bridge design drawings and models to determine the formwork elevation; Step 2: Module assembly: Assemble the solar module, solar-to-electrical energy conversion module, power module, GNSS altitude monitoring module, and wireless transceiver module into the control box, connect the circuits, and then debug; Step 3: Assemble the main control device. Connect and secure the oblique convex slider at the bottom of the control box to the dovetail groove of the track block. Then install the control box on the ball joint at the top of the telescopic rod through the track block. Step 4: Set up a support at the first section, install a formwork and tie steel bars on top of the pier, securely install the embedded device for the linear monitoring system at the measuring point, attach the main control unit to the embedded rod of the embedded device via connectors, and adjust the length of the telescopic rod until the linear monitoring system reaches the set height. After installation, use the GNSS elevation monitoring module to conduct the first monitoring before concrete pouring, and monitor and record elevation data for each measuring point in the first section around the clock. Step 5: Concrete pouring and curing. After the concrete has solidified for 2 to 3 days after pouring, conduct a second monitoring and record the elevation data of each measuring point. Perform an error analysis on the data measured twice before and after concrete pouring, and perform a structural analysis based on the error correction design parameters to calculate the formwork elevation of the next section. After the construction and monitoring of the first section are completed, the main control device of the linear monitoring device is removed from the first section and installed in the second section for construction and monitoring of the second section. During the construction of each section, perform an error analysis based on the measurement data to correct the formwork elevation section by section. In step six, the other sections are constructed using a hanging basket construction method, and the assembly of the embedded devices and main control devices in steps four and five, as well as the subsequent monitoring steps, are repeated. The construction and monitoring of each stage are repeated in a cycle, and the monitoring data is analyzed in real time to ensure that the bridge line shape is within the allowable error range.

2. The method for monitoring the construction alignment of a concrete continuous beam bridge according to claim 1, characterized in that: It also includes a control box, which is equipped with a level for vertical and horizontal leveling; the GNSS elevation monitoring module is installed in the control box, and a connecting piece is hinged at the bottom of the control box. The embedded device also includes an embedded rod, and the bottom of the connecting piece is fixedly connected to the embedded rod of the embedded device by threads.

3. The method for monitoring the construction alignment of a concrete continuous beam bridge according to claim 2, characterized in that: The connecting member includes a first sleeve and a second sleeve fixedly connected by a solid disc, the inner walls of the first sleeve and the second sleeve are both provided with internal threads, the first sleeve is threadedly connected to the telescopic rod, a bolt hole is provided on the side wall of the first sleeve, a bolt is threadedly connected to the bolt hole, and the bolt can be fixedly abutted against the telescopic rod; a ball hinge hole is provided at the top of the telescopic rod, a ball hinge is provided in the ball hinge hole, the top of the ball hinge is fixedly connected to the track block through the ball hinge rod, the top of the track block is provided with a dovetail groove, and the bottom of the control box is fixedly provided with an oblique convex slider matching the dovetail groove, and the oblique convex slider is slidably set in the dovetail groove; the second sleeve is threadedly connected to the upper part of the embedded rod.

4. The method for monitoring the construction alignment of a concrete continuous beam bridge according to claim 3, characterized in that: A ball joint limiting hole connected to the ball joint hole is provided on the side wall of the telescopic rod, and a limiting bolt is connected to the inner thread of the ball joint limiting hole; a gripping portion is integrally formed on the upper side wall of the telescopic rod.

5. The method for monitoring the construction alignment of a concrete continuous beam bridge according to claim 1, wherein: The inner bottom of the U-shaped groove is a semicircular structure, and the radius of the inner bottom of the U-shaped groove is the same as the outer diameter of the steel bars of the steel mesh.

6. The method for monitoring the construction alignment of a concrete continuous beam bridge according to claim 3, characterized in that: Hand stop holes are provided at both ends of the oblique convex sliding block, and an L-shaped hand stop is threadedly connected to the hand stop hole. One end of the L-shaped hand stop is threadedly fixed to the hand stop hole, and the side wall of the other end can be fixedly abutted against one end of the track block; the GNSS elevation monitoring module is installed in the control box, and a box cover is hinged on the top of the control box.

7. The method for monitoring the construction alignment of a concrete continuous beam bridge according to claim 6, characterized in that: A solar panel mounting groove is provided on the top of the box cover, and the solar panel mounting groove is used for fixing and installing the solar panel. An antenna hole is provided on one side of the top of the box cover, and the antenna of the GNSS altitude monitoring module can be inserted into the antenna hole; the control box is also provided with a power module and a wireless transceiver module electrically connected to the GNSS altitude monitoring module, and the power module is connected to the solar panel through a solar-electric energy conversion module; a rubber strip is provided at the bottom edge of the box cover.

8. The method for monitoring the construction alignment of a concrete continuous beam bridge according to claim 6, characterized in that: Two tenons are symmetrically provided on one side of the bottom of the box cover, and two circular mortises are fixedly provided on the top of one side wall of the control box, and the two tenons can be movably and symmetrically provided in the two circular mortises; a lock holding part is movably passed through the end of the box cover away from the tenon, and a horizontally arranged locking column is fixed on the bottom side wall of the lock holding part, and a concave lock buckle is provided on the inner side of the upper side wall of the control box away from the circular mortise, and the locking column can be clamped at the lock buckle by rotating the lock holding part.

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