CN116623528A - Linear monitoring method and matched device for concrete continuous beam bridge construction - Google Patents

Abstract

The invention discloses a linear monitoring method and a matched device for concrete continuous beam bridge construction, and relates to the field of monitoring devices; the device comprises a main control device and an embedded device, wherein a GNSS elevation monitoring module is arranged in a control box and is wirelessly connected with a data processing terminal; the control box bottom articulates there is the connecting piece, and the connecting piece is connected with the built-in fitting through pre-buried member, and U type groove has been seted up to the one end that the built-in fitting kept away from GNSS elevation monitoring module, and symmetrical arrangement's bolt hole has been seted up to U type groove both sides wall, and U type groove is used for the joint on the reinforcing bar of reinforcing bar net, the bolt top in the bolt hole with be located the bottom edge butt of U type inslot reinforcing bar. The invention adopts the linear monitoring matching device for the construction of the concrete continuous beam bridge, utilizes the GNSS elevation monitoring module to monitor and record the elevation data of each measuring point of the bridge construction section in all weather, replaces manual realization of the linear real-time monitoring of the bridge, reduces the risk to a certain extent and improves the measurement precision.

Description

Concrete continuous girder bridge construction alignment monitoring method and supporting device

technical field

The invention relates to the technical field of monitoring devices, in particular to a method for monitoring the construction alignment of a concrete continuous girder bridge and a supporting device _.

Background technique

The construction of bridges spans natural or artificial obstacles, bringing great convenience to traffic. In the process of bridge construction, especially the construction of long-span and complex bridges, the precision of the butt joint is very high. Construction precision, material properties, and ambient temperature will have a huge impact on the final closure, resulting in deviations in the bridge; in addition In addition, it is not uncommon for bridge settlement to affect the quality of the project or even lead to the collapse of the project. In order to ensure that the error between the final bridge alignment and the designed bridge alignment is controlled within the allowable range, and to ensure the quality and safety of the bridge construction, during the bridge construction stage, professionals will use high-end precision instruments to measure the site and monitor the entire process of bridge construction. Monitoring is carried out in order to take timely measures to implement adjustments and remedial plans based on the status quo of bridge construction. If bridge construction monitoring is not carried out well, deviations will occur, making it impossible to complete the closing work in the end, which will have adverse social impacts, cause huge economic losses, and cause waste of labor, funds, and materials. Therefore, it is necessary to continuously improve the technology and methods of bridge construction monitoring, and to continuously develop and use them.

At present, the monitoring of bridge construction is mainly through the use of high-precision measuring instruments combined with manual monitoring. Every time a section of the bridge is poured, surveyors need to go back and forth to the site for measurement. Frequent high-altitude operations have great potential safety hazards. When the first few blocks of the concrete continuous girder bridge are being constructed (such as Blocks 1-3), the working surface of the bridge deck is small. At this time, the bridge deck not only needs to pile up various construction materials, equipment, etc., but also has a large number of people on the bridge deck. Frequent movement caused conflicts between on-site construction and construction monitoring. At the same time, labor wages continue to rise, which will consume a lot of labor and capital.

Traditional bridge construction monitoring mainly uses a high-precision level to measure the elevation of control points, and then conducts research based on the measurement data, and gives the construction elevation of the next beam section. In order to establish elevation control points, three control points should be established on the uppermost end of the steel mesh of the beam section before pouring concrete in each beam section. Usually, a number of abandoned steel bar heads are randomly found on site and tied to the bridge vertically on the bridge deck. On the steel bar net, the steel bar head should ensure that after the concrete of the beam section is poured, about 10cm of the concrete on the upper side should be exposed. This method is simple and convenient, but the height of the elevation control points is uneven, and the steel bars are also thick and thin. This rough point production method is often ignored by the construction personnel on site, and the points are often destroyed, which affects the monitoring work. carry out.

In order to reduce the use of labor, reduce the possibility of accidents, and enhance the standardization of control points, the monitoring device is designed to replace manual labor, and it is installed at the measurement position required by the specification, all-weather, real-time, continuous high-precision automatic measurement, and bridge monitoring Settlement deformation. But the existing technology is mainly to monitor after the bridge is completed, and the structure is simple. Therefore, there is a need for a device capable of monitoring the alignment of the bridge during the bridge construction phase, while solving the problems of labor, safety, and low measurement accuracy.

Contents of the invention

The purpose of the present invention is to provide a method for monitoring the construction alignment of a concrete continuous girder bridge and a supporting device to solve the above-mentioned problems in the prior art, to replace manual real-time monitoring of the bridge alignment during the bridge construction stage, and to improve the measurement accuracy.

To achieve the above object, the present invention provides the following scheme:

The invention provides a supporting device for monitoring the construction line shape of a concrete continuous beam bridge, which includes a pre-embedded device and a main control device. The main control device includes a connection part and a control part. The control part includes structures such as a control box and a track block, and the connection part includes a connector. , the control box is equipped with a GNSS elevation monitoring module; the pre-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 includes an embedded part, and the end of the embedded part away from the GNSS elevation monitoring module is provided with a U-shaped groove, and the two side walls of the U-shaped groove are provided with symmetrically arranged bolt holes, and the bolts The holes are used to fix the bolts horizontally, the U-shaped grooves are used to clamp on the steel bars of the steel mesh, and the top side wall of the bolts in the bolt holes is in contact with the bottom edge of the steel bars in the U-shaped grooves The bolts are fixedly connected with nuts after passing through the two symmetrical bolt holes, so that the steel bars are fixed through the bolts, nuts and U-shaped grooves, so that the embedded parts can be fixedly installed on the steel bars. The detachable GNSS elevation monitoring module is connected with the steel mesh in the concrete continuous girder bridge through the pre-embedded device, instead of manual fixed-point measurement, it is installed at the measurement position required by the code, and the bridge alignment is monitored according to the measured elevation data. Through the unified and high-durability pre-embedded device, the standardization of monitoring equipment can be realized, and the points can be effectively prevented from being damaged due to accidental touch by on-site personnel. Each part of the monitoring device is simple to manufacture and convenient to install, and the main control device can be disassembled and reused after the measurement is completed. At the same time, the specifications of the embedded connectors can be replaced according to the specifications of the steel bars in the steel mesh, and can be controlled and adjusted according to the site conditions of the measurement position.

Optionally, the GNSS elevation monitoring module is installed in the control box, the bottom of the control box is hinged with a connector, the embedded device includes a pre-embedded rod connected to the embedded part, and the bottom of the connector is connected to the pre-embedded The pre-embedded rods of the embedded device are fixedly connected by threads.

Optionally, the connector 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 provided with internal threads, and the first sleeve A telescopic rod is threadedly connected, and the lower part of the telescopic rod has an external thread. By rotating the telescopic rod, the lower part thereof is threadedly connected with the first sleeve, and the length of the telescopic rod located in the first sleeve is adjusted accordingly, so that the telescopic rod is in the first position. For expansion and contraction in the sleeve, the side wall of the first sleeve is also provided with a bolt hole, and the bolt abuts the telescopic rod to prevent the main control device from being screwed out when the main control device is connected to the pre-embedded rod by threads. In order to make the stretchable length larger, in one embodiment, the length of the first sleeve is set to be greater than the length of the second sleeve, and a ball hinge hole is opened on the top of the telescopic rod, and the ball hinge hole A ball joint is arranged inside, and the top of the ball joint is fixedly connected to the track block through a ball joint rod. The top of the ball joint rod and the bottom of the track block can be connected by threads, welding or clamping, etc., which are not specifically limited. The top of the track block is provided with a dovetail groove, and the bottom of the control box is fixed with an obliquely convex slider matching the dovetail groove, and the obliquely convex slider is slidably arranged in the dovetail groove; the second set The cylinder is threadedly connected to the upper part of the pre-embedded rod, and detachable plug-in or tenon-tenon connection can also be used here.

Optionally, a ball hinge limit hole connected to the ball hinge hole is opened on the side wall of the telescopic rod. The ball hinge limit hole is internally threaded with a limit bolt. After adjusting the position of the ball hinge, Use the limit bolt to tighten, so that the end of the limit bolt is fixedly abutted with the ball hinge to realize the fixation of the ball hinge; the side wall above the telescopic rod is integrally formed with a gripping part, which is convenient for the rotation and installation of the telescopic rod.

Optionally, the inner bottom of the U-shaped groove is a semicircular structure, and the radius size of the inner bottom of the U-shaped groove is the same as the outer diameter of the steel bar of the steel mesh, so that it can be more suitable for the steel bar, and for different For steel bars of different sizes, embedded parts of corresponding sizes are used to make the connection between embedded parts and steel bars more compact and firm.

Optionally, two ends of the inclined-convex slider are provided with hand holes, and the inner thread of the hand hole is connected with an L-shaped hand, one end of the L-shaped hand is fixedly connected with the thread of the hand hole, and the other The side wall at one end can be fixedly contacted with one end of the track block, and after the obliquely convex slider slides from one end of the dovetail groove into the dovetail groove, an L-shaped stopper is installed so that the threaded end of the L-shaped stopper is fixedly connected with the stopper hole , the other end is arranged vertically downwards, fixedly abutting against one end of the track block, so as to limit the position at both ends of the dovetail groove, and prevent the obliquely convex slider from sliding out from both ends of the dovetail groove; the GNSS elevation monitoring module is installed on the In the control box, a box cover is hinged on the top of the control box, which plays a role of safety protection.

Optionally, the top of the case cover is provided with a solar panel installation groove, and the solar panel installation groove is used for fixedly installing the solar panel, and an antenna hole is provided on one side of the top of the case cover, and the antenna of the GNSS elevation monitoring module It can be installed in the antenna hole; the control box is also provided with a power supply module and a wireless transceiver module electrically connected to the GNSS elevation monitoring module, and the power supply module is connected to the solar panel through a solar-electric energy conversion module Connection; the bottom edge of the box cover is provided with a rubber strip to prevent rain from seeping into the control box through the gap of the box cover.

Optionally, a level is provided in the control box, which includes a cylindrical vial, and the cylindrical vial is arranged in the installation groove on the outer wall of the control box, and the outer side is controlled by a cover plate fixedly connected to both ends of the installation groove on the outer wall of the control box. position, the control box can be horizontally and vertically leveled; specifically, the control box is provided with a mounting groove on the outer side wall of the control box on the upper side of a side wall perpendicular to the inclined convex slider, and the control box is connected to the A mounting groove on the outer wall of the control box is provided on the lower side of the side wall parallel to the inclined convex slider. A cylindrical level bubble is installed in the installation groove on the outer wall of the control box, and a cover plate is fixed on the outer side of the cylindrical level bubble. Both ends of the board are fixedly connected to the side wall of the control box.

Optionally, two tenons are symmetrically provided on one side of the bottom of the box cover, and two circular mortises are fixed on the top of the side wall of the control box, and the two tenons can be movable and symmetrically arranged on the two In the circular mortise; the end of the box cover away from the mortise is movably pierced with a lock grip, the bottom side wall of the lock grip is fixed with a horizontally arranged locking column, and the control box is far away from the circular A concave buckle is provided on the upper inner side of the side wall of the mortise, and the locking column can be engaged with the lock buckle by turning the lock grip.

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

Step 1: Carry out structural analysis and calculation according to bridge design drawings and models before construction to determine the elevation of the erection formwork;

Step 2, module assembly, assemble the solar module, solar-electric energy conversion module, power module, GNSS elevation monitoring module and wireless transceiver module in the control box, and debug after connecting the lines;

Step 3: Assemble the main control device, connect and fix the inclined slider at the bottom of the control box with the dovetail groove of the track block, and then install the control box on the ball joint at the top of the telescopic rod through the track block;

Step 4: Set up the bracket at the first section, install the formwork on the top of the pier, bind the steel bars, fix the pre-embedded device of the linear monitoring supporting device at the position of the measuring point, and install the main control device to the pre-embedded device of the pre-embedded device through the connector on the rod, and adjust the length of the telescopic rod until the linear monitoring supporting device is at the set height. After the installation is completed, use the GNSS elevation monitoring module to conduct the first monitoring before concrete pouring, and monitor and record all the measuring points of the first section around the clock the elevation data;

Step 5: Concrete pouring and curing. After the concrete pouring is completed for 2 to 3 days, the second monitoring is performed and the elevation data of each measuring point is recorded; the error analysis is performed on the data measured twice before and after concrete pouring, and correction is made according to the error Design parameters, conduct structural analysis, and calculate the vertical formwork elevation of the next section; after the construction and monitoring of the first section is completed, the main control device of the linear monitoring supporting device is removed from the first section and installed in the second section, Carry out the construction and monitoring of the second section; during the construction process of each section, conduct error analysis through measurement data to correct the elevation of the vertical formwork section by section;

Step 6, the other sections after that are constructed in the form of hanging basket construction, and repeat steps 4 and 5 in the assembly of the pre-embedded device, the main control device and the subsequent monitoring steps, and carry out the construction and monitoring of each stage in a cycle. The monitoring data is analyzed in real time to ensure that the alignment of the bridge is within the allowable range of error.

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

The construction line shape monitoring device of the concrete continuous girder bridge provided by the present invention, the connecting part and the control part form the main control device, and the main control device is connected with the steel mesh in the concrete continuous girder bridge through the pre-embedded device, so as to realize fixed-point measurement and complete the measurement Afterwards, the main control device can be disassembled and reused; at the same time, the specifications of the embedded parts can be replaced according to the specifications of the steel bars in the steel mesh; by using the GNSS elevation monitoring module, labor costs can be reduced, construction risks can be reduced, and monitoring efficiency can be improved to achieve visual and dynamic monitoring Effect. The monitoring device is componentized, easy to assemble and disassemble, has adjustability, and the overall structure is compact, reusable, and reduces cost. The monitoring device uses the GNSS global navigation satellite system, so that the reference point of block zero can realize real-time three-dimensional monitoring, effectively avoiding the error caused by the displacement of the rigid body of the bridge pier.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the overall structure schematic diagram of the construction alignment monitoring supporting device of concrete continuous girder bridge of the present invention;

Fig. 2 is the concrete continuous girder bridge construction line shape monitoring supporting device of the present invention and the schematic diagram of the connection structure of steel mesh;

Fig. 3 is a structural schematic diagram of the embedded part of the present invention;

Fig. 4 is a schematic diagram of the bolt structure of the present invention;

Fig. 5 is the structural representation of nut of the present invention;

Fig. 6 is a schematic diagram of the structure of the pre-embedded rod of the present invention;

Fig. 7 is a structural schematic diagram of the telescopic rod of the present invention;

Fig. 8 is a schematic view of the track block structure of the present invention;

Fig. 9 is a schematic diagram of another angle of the track block of the present invention;

Fig. 10 is a schematic diagram of the structure of the spherical joint of the present invention;

Fig. 11 is a schematic diagram of the connection between the spherical joint and the track block of the present invention;

Fig. 12 is a structural schematic diagram of the control box of the present invention;

Fig. 13 is a schematic diagram of the structure of the control box of the present invention after it is connected to the cover plate;

Fig. 14 is a schematic diagram of the structure of the lid of the present invention;

Fig. 15 is a schematic diagram of the bottom structure of the case cover of the present invention;

Fig. 16 is a structural schematic diagram after the box cover of the present invention is connected with the control box;

Fig. 17 is a schematic diagram of the connection between the control box and the track block of the present invention;

Fig. 18 is a schematic diagram of the structure of the L-shaped handle of the present invention;

Fig. 19 is a structural schematic diagram of the connector of the present invention;

Fig. 20 is a schematic diagram of changes in construction measuring points from block No. 0 to block No. 1 of the present invention;

Fig. 21 is a schematic flow chart of the method for monitoring the construction alignment of a concrete continuous girder bridge of the present invention;

Fig. 22 is a schematic diagram of modules in the control box of the present invention;

Fig. 23 is a schematic structural diagram of the main control device of the present invention;

Figure 24 is a schematic structural view of the pre-embedded device of the present invention;

Explanation of reference signs: 1-embedded parts, 2-reinforced mesh, 3-control box, 4-U-shaped groove, 5-embedded rods, 6-bolt holes, 7-bolts, 8-nuts, 9-th One 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 limit hole, 19-Grip part, 20-Handle hole, 21-L-shaped handle, 22-Cover, 23-Solar panel, 24-Installation groove on the outer wall of the control box, 25-Cover plate , 26-mortise, 27-mortise, 28-lock grip.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The purpose of the present invention is to provide a method for monitoring the construction alignment of a concrete continuous girder bridge and a supporting device to solve the above-mentioned problems in the prior art, to replace manual real-time monitoring of the bridge alignment during the bridge construction stage, and to improve the measurement accuracy.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

With reference to accompanying drawing 1～accompanying drawing 19, the present invention provides a kind of concrete continuous girder bridge construction alignment monitoring supporting device, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Fig. 10. As shown in Fig. 11, Fig. 12, Fig. 13, Fig. 14, Fig. 15, Fig. 16, Fig. 17, Fig. 18, Fig. 19, Fig. 23 and Fig. 24, it includes fixed installation in the concrete continuous beam bridge through pre-embedded devices The main control device on the reinforced mesh 2, 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 a pre-embedded The embedded rod 5 and the end of the embedded part 1 far away from the GNSS elevation monitoring module are provided with a U-shaped groove 4; The ball joint 13 of spherical structure, the ball joint hole 12 is about 3/4 of the ball joint 13, the adjustability of the upper part is realized through the ball joint 13, the top of the ball joint is fixedly connected with the track block 15 through the ball joint rod 14, the ball joint A threaded section is left on the upper end of the bar 14 and a section of round bar is extended to increase the adjustment range of the ball joint, and the top of the ball joint bar 14 and the bottom of the track block 15 can be threaded. The top of the track block 15 is provided with a dovetail groove 16, and the bottom of the control box 3 is fixed with an obliquely convex slider 17 matching the dovetail groove 16. The obliquely convex slider 17 is slidably arranged in the dovetail groove 16 to effectively avoid vertical displacement. , the lateral size of the track block 15 is smaller than that of the oblique slider 17, which saves material; the connecting piece includes a first sleeve 9 and a second sleeve 10 fixedly connected by a solid oblate disk, and the second sleeve of the connecting piece is passed through a pre-set The buried rod 5 is fixedly connected to the end of the embedded part 1 away from the U-shaped groove 4, and the two side walls of the U-shaped groove 4 are provided with symmetrically arranged bolt holes 6, and the bolt holes 6 are used for horizontally fixing and piercing bolts 7, U-shaped The groove 4 is used to clamp on the steel bar of the steel mesh 2, the top side wall of the bolt 7 in the bolt hole 6 is in contact with the bottom edge of the steel bar in the U-shaped groove 4, and the bolt 7 passes through two symmetrical bolt holes Nut 8 is fixedly connected, so that the steel bar is fixed by bolt 7, nut 8 and U-shaped groove 4, so that the 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. Similar to the plum blossom shape, it is easy to twist by hand and easy to use. Wherein, the diameter, length, and thread of the bolt 7 are determined by the threaded hole, depth, and thread line reserved in each component, and play a role of connection and fixation. Fix the main control device equipped with the GNSS elevation monitoring module on the steel mesh in the concrete continuous beam bridge through the pre-embedded device, instead of manual fixed-point measurement, install it at the measurement position required by the specification, and monitor the bridge alignment according to the measured elevation data , Through the unified and high-durability pre-embedded device, the standardization of monitoring equipment is realized, and the points are effectively prevented from being damaged by accidental touches by on-site personnel. Each part of the monitoring device is simple to manufacture and convenient to install, and the main control device can be disassembled and reused after the measurement is completed. At the same time, the specifications of the embedded parts can be replaced according to the specifications of the steel bars in the steel mesh, and can be controlled and adjusted according to the site conditions of the measurement position.

Both the first sleeve 9 and the second sleeve 10 inner walls are provided with internal threads, and the first sleeve 9 is threadedly connected with a telescopic rod 11, and the bottom of the telescopic rod 11 has an external thread, and by rotating the telescopic rod 11, the lower part thereof is aligned with the first The sleeve 9 is threaded, and accordingly adjusts the length of the telescopic rod 11 located in the first sleeve 9 to realize the expansion and contraction of the telescopic rod 11 in the first sleeve. In the example, 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 screwed to the upper part of the embedded rod 5, and the embedded rod 5 is made of steel, with both ends Threads are provided for easy identification and installation. The shorter side of the thread is the embedded end, which is threaded to the end of the embedded part 1 away from the U-shaped groove 4. The longer thread is the connecting end, which is connected to the main control device. The length, diameter and thread specifications of the second sleeve 10 are all determined by the threaded holes reserved for the connectors at each end. When assembling, screw the pre-embedded end of the pre-embedded rod 5 into the threaded hole reserved at the upper end of the pre-embedded part until it cannot be rotated. Threaded holes are provided, and the bolts are tightened together to fix and limit the telescopic rod inserted in the first sleeve. Install the embedded parts through the U-shaped groove 4 at the measuring point corresponding to the steel mesh. The semicircle at the bottom of the U-shaped groove 4 is concentric with the steel mesh reinforcement, so that it can be more suitable for the reinforcement. For different sizes of reinforcement, The use of embedded parts of corresponding sizes makes the connection between the embedded part 1 and the steel bars more compact and firm. Insert the two bolts into the two bolt holes on the side of the embedded part respectively, and tighten them with nuts until the embedded part cannot rotate and move in the steel mesh, and the assembly of the embedded device is completed.

The side wall of the telescopic rod 11 is provided with a ball hinge limit hole 18 connected with the ball hinge hole 12, and the ball hinge limit hole 18 is internally threaded with a limit bolt. After adjusting the position of the ball hinge, use the limit bolt to tighten. The end of the limit bolt is fixedly abutted with the ball hinge to realize the fixation of the ball hinge; a gripping portion 19 is integrally formed on the side wall above the telescopic rod 11 to facilitate the rotation and installation of the telescopic rod 11 . When assembling, embed the spherical part of the ball hinge into the reserved ball hinge hole at the upper end of the telescopic rod. After adjusting the position of the ball hinge, tighten and fix the ball hinge with the bolts on the side wall of the ball hinge hole. The screw thread at the upper end of the ball joint is firmly connected with the reserved threaded hole of the track block.

Further preferably, the two ends of the inclined-convex slider 17 are provided with a hand-stop hole 20, and the inner thread of the hand-stop hole 20 is connected with an L-shaped hand-stop 21, and one end of the L-shaped hand-stop 21 is screwed and fixedly connected with the hand-stop hole 20, and the other end side is The wall can be fixedly abutted with one end of the track block 15, and after the obliquely convex slider 17 slides into the dovetail groove from one end of the dovetail groove, the L-shaped retaining hand 21 is installed so that the threaded end of the L-shaped retaining hand 21 is fixed to the hand retaining hole 20 connected, the other end is arranged vertically downward, fixedly abutting against one end of the track block 15, thereby limiting the position at both ends of the dovetail groove, preventing the oblique convex slider from slipping out from the two ends of the dovetail groove, and limiting the left and right displacement of the oblique convex slider effect.

The GNSS elevation monitoring module is installed in the control box 3, and the middle part of the top of the control box 3 is concave to form 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 has a safety protection effect. The top of the case cover 22 is provided with a solar panel installation groove, which is used for fixedly installing the solar panel 23 in the solar panel installation groove, and an antenna hole is provided on one side of the top of the case cover 22, and the antenna of the GNSS elevation monitoring module can be installed in the antenna hole; Shown in Figure 22, control box 3 is also provided with a power supply module and a wireless transceiver module electrically connected with the GNSS elevation monitoring module, and the power supply module is connected with the solar panel of the solar module through the solar energy-electric energy conversion module; There is a rubber strip to prevent rain from seeping into the control box through the gap of the box cover. The control box 3 is provided with a control box outer wall installation groove 24 on the upper side of a side wall perpendicular to the inclined convex slider, and the control box 3 is provided with a control box outer wall installation groove 24 on the lower side of a side wall parallel to the inclined convex slider. A cylindrical vial is installed in the mounting groove 24 on the outer wall of the control box, and a cover plate 25 is fixed on the outside of the cylindrical vial, and the two ends of the cover plate 25 are fixedly connected with the side wall of the control box 3, and the cylindrical vial is movably arranged in the groove , the outer side is limited by the cover plate, which can be adjusted vertically and horizontally. One side of the bottom of the box cover 22 is symmetrically provided with two mortises 26, and the top of the side wall of the control box 3 is fixed with two circular mortises 27, and the two mortises 26 can be movable and symmetrically arranged in the two circular mortises 27; The end of the box cover 22 away from the mortise is movably pierced with a lock grip 28, the bottom side wall of the lock grip 28 is fixed with a horizontally arranged locking post, and the control box 3 is provided with an inner wall above the side wall far away from the circular mortise. For the concave buckle, turn the lock handle 28, and the locking column can be clamped at the buckle, so as to fix the case cover 22 with the inner buckle. When assembling, install the solar panel (also set a reserved hole and reserve a round hole through which the lock handle passes) on the top of the box cover, align the reserved holes, and stick them firmly with waterproof glue. Insert the mortise at the bottom left side of the box cover into the mortise at the top left side of the control box, so that the box cover moves on this axis. After the instrument in the assembly control box is installed, cover the box cover, turn the lock grip part of the box cover to the right, drive the inner buckle lock into the inner lock on the right side of the group control box, and lock the box cover.

In a specific embodiment, the present invention also provides a method for monitoring the construction alignment of a concrete continuous girder bridge, as shown in Fig. 20 and Fig. 21, including: performing structural analysis and calculation according to the bridge design drawings and models before construction, and determining the formwork Elevation; Assemble the GNSS elevation monitoring module and wireless transceiver module in the control box, and debug after connecting the lines; Assemble the main control device, connect and fix the inclined slider at the bottom of the control box with the dovetail groove of the track block, and then Install the control box on the ball joint at the top of the telescopic rod through the track block; set up a bracket at the No. 0 block, install the formwork on the top of the pier, and bind the steel bars. Right position) to install the monitoring device, respectively recorded as 0-C, L-0-C, L-0-L, L-0-R, R-0-C, R-0-L, R-0-R (where L represents the left end, C represents the middle, R represents the right end, and 0 represents block 0, then L-0-C is the middle position at the end of block 0 at the left end). After the installation is completed, use the GNSS elevation monitoring module for the first monitoring before concrete pouring, and monitor and record the elevation data of each measuring point of Block 0 around the clock. Then, the No. 0 block concrete is poured and cured, and after the concrete has solidified and hardened in 2 to 3 days, it will be monitored again and the elevation data of each measuring point will be recorded. Perform error analysis on the data measured twice before and after concrete pouring, and modify the design parameters according to the error, conduct structural analysis, and calculate the vertical formwork elevation of the next section. After the concrete is cured to the design strength, install the hanging basket, use the hanging basket to symmetrically pour the next section, that is, block No. 1, install the formwork, bind the steel bars, and install the monitoring device at the measuring point of block No. 1, which are respectively recorded as L-1- C, L-1-L, L-1-R, R-1-C, R-1-L, R-1-R. At the same time, remove the main control devices at L-0-C, L-0-L, L-0-R, R-0-C, R-0-L, and R-0-R. After the installation is completed, monitor and record the elevation data of each measuring point, then pour and maintain the No. 1 block concrete, and measure and record again after the concrete hardens. Perform error analysis on the two measurement data, modify the design parameters for structural analysis, and enter the construction monitoring of the next section. Carry out the construction and monitoring of each subsequent stage according to the above process cycle. Real-time analysis of monitoring data to ensure that the bridge alignment is within the allowable range of error.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

In the present invention, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to the present invention The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (9)

1. The utility model provides a supporting device of linear control of concrete continuous beam bridge construction which characterized in that: the embedded device can fix the main control device provided with the GNSS elevation monitoring module on a reinforcing mesh in a concrete continuous beam bridge, and the GNSS elevation monitoring module is wirelessly connected with a data processing terminal; the embedded device comprises an embedded part, a U-shaped groove is formed in one end, far away from the GNSS elevation monitoring module, of the embedded part, bolt holes are formed in two side walls of the U-shaped groove and are symmetrically arranged, bolts are horizontally and fixedly arranged in the bolt holes in a penetrating mode, the U-shaped groove is used for being clamped on steel bars of the steel bar mesh, and the tops of the bolts in the bolt holes are abutted to the edges of the bottoms of the steel bars in the U-shaped groove.

2. The concrete continuous bridge construction line-shaped monitoring matching device according to claim 1, wherein: the device also comprises a control box, wherein a level gauge for longitudinal and horizontal leveling is arranged in the control box; the GNSS elevation monitoring module is installed in the control box, a connecting piece is hinged to the bottom of the control box, the embedded device further comprises an embedded rod piece, and the bottom of the connecting piece is fixedly connected with the embedded rod piece of the embedded device through threads.

3. The concrete continuous bridge construction line-shaped monitoring matching device according to claim 2, wherein: the connecting piece comprises a first sleeve and a second sleeve which are fixedly connected through a solid disc, wherein internal threads are formed in the inner walls of the first sleeve and the second sleeve, the first sleeve is in threaded connection with a telescopic rod, a bolt hole is formed in the side wall of the first sleeve, a bolt is in threaded connection with the bolt hole, and the bolt can be fixedly abutted to the telescopic rod; the telescopic rod is characterized in that a ball hinge hole is formed in the top of the telescopic rod, a ball hinge is arranged in the ball hinge hole, the top of the ball hinge is fixedly connected with a track block through a ball hinge rod, a dovetail groove is formed in the top of the track block, an oblique convex sliding block matched with the dovetail groove is fixedly arranged at the bottom of the control box, and the oblique convex sliding block is arranged in the dovetail groove in a sliding manner; the second sleeve is in threaded connection with the upper portion of the embedded rod piece.

4. A concrete continuous bridge construction line-shaped monitoring matching device according to claim 3, wherein: a spherical hinge limiting hole communicated with the spherical hinge hole is formed in the side wall of the telescopic rod, and a limiting bolt is connected in the spherical hinge limiting hole in a threaded manner; the side wall above the telescopic rod is integrally formed with a holding part.

5. The concrete continuous bridge construction line-shaped monitoring matching device according to claim 1, wherein: the bottom in the U-shaped groove is of a semicircular structure, and the radius size of the bottom in the U-shaped groove is the same as the outer diameter size of the steel bars of the steel bar mesh.

6. A concrete continuous bridge construction line-shaped monitoring matching device according to claim 3, wherein: the two ends of the oblique convex sliding block are provided with hand blocking holes, the inner threads of the hand blocking holes are connected with L-shaped hand blocking holes in a threaded manner, one end of each L-shaped hand blocking hole is fixedly connected with the corresponding hand blocking hole in a threaded manner, and the side wall of the other end of each L-shaped hand blocking hole can be fixedly abutted to one end of the corresponding track block; the GNSS elevation monitoring module is installed in the control box, and a box cover is hinged to the top of the control box.

7. The concrete continuous bridge construction line-shaped monitoring matching device according to claim 6, wherein: the solar panel installation groove is formed in the top of the box cover, the solar panel installation groove is used for fixedly installing a solar panel, an antenna hole is formed in one side of the top of the box cover, and an antenna of the GNSS elevation monitoring module can be arranged in the antenna hole in a penetrating mode; the control box is internally provided with a power module and a wireless transceiver module which are electrically connected with the GNSS elevation monitoring module, and the power module is connected with the solar panel through a solar-electric energy conversion module; and a rubber strip is arranged at the edge of the bottom of the box cover.

8. The concrete continuous bridge construction line-shaped monitoring matching device according to claim 6, wherein: two tenons are symmetrically arranged on one side of the bottom of the box cover, two circular mortise holes are fixedly formed in the top of one side wall of the control box, and the two tenons can be movably and symmetrically arranged in the two circular mortise holes; the locking device is characterized in that a lock holding part is movably arranged at one end of the box cover, which is far away from the tenon, and a locking column which is horizontally arranged is fixedly arranged on the side wall of the bottom of the lock holding part, a concave lock catch is arranged on the inner side of the upper side of the side wall of the circular mortise, the lock holding part is rotated, and the locking column can be clamped at the lock catch.

9. A linear monitoring method for concrete continuous beam bridge construction is characterized in that: the method comprises the following steps:

step one, carrying out structural analysis and calculation according to bridge design drawings, models and the like before construction, and determining the elevation of a vertical model;

step two, module assembly, wherein a solar module, a solar-electric energy conversion module, a power module, a GNSS elevation monitoring module and a wireless transceiver module are assembled in a control box and are debugged after being connected with a circuit;

step three, the main control device is assembled, the oblique convex sliding block at the bottom of the control box is connected and fixed with the dovetail groove of the track block in a matching way, and then the control box is arranged on the spherical hinge at the top of the telescopic rod through the track block;

step four, erecting a bracket at the first section, installing a template and binding reinforcing steel bars at the top of a bridge pier, fixedly installing an embedded device of a linear monitoring matching device at the position of a measuring point, installing a main control device on an embedded rod piece of the embedded device through a connecting piece, adjusting the length of a telescopic rod until the linear monitoring matching device is at a set height, and performing first monitoring before concrete pouring by using a GNSS elevation monitoring module after the installation is completed, and all-weather monitoring and recording elevation data of each measuring point of the first section;

step five, concrete pouring and curing, and after the concrete pouring is completed for 2-3 days, performing secondary monitoring and recording elevation data of each measuring point; performing error analysis on the data measured twice before and after concrete pouring, performing structural analysis according to error correction design parameters, and calculating the elevation of the vertical mould of the next section; after the construction and monitoring of the first section are completed, the main control device of the linear monitoring matching device is detached from the first section and is mounted on the second section, and the construction and monitoring of the second section are carried out; in the construction process of each section, carrying out error analysis through measurement data, and carrying out section-by-section correction on the elevation of the opposite model;

and step six, constructing other sections in a hanging basket construction mode, repeating the assembly of the pre-buried device and the main control device in the step four and the step five and the subsequent monitoring step, circularly carrying out the construction and monitoring of each stage, carrying out real-time analysis on monitoring data, and ensuring that the bridge line is within the allowable range of errors.