Cast-in-place box girder full framing monitoring structure

Abstract

The utility model discloses a cast-in-place box girder full framing monitoring structure, and belongs to the technical field of bridge construction, the cast-in-place box girder full framing monitoring structure comprises a bridge pier, a plurality of vertical rods erected on the ground are arranged on one side of the bridge pier, supporting rods are arranged between the vertical rods, and the supporting rods on the sides, close to the bridge pier, of the vertical rods are connected with the side wall of the bridge pier; the vertical rods and the supporting rods are combined to form a full space support, a box girder formwork is arranged at the top of the full space support, a plurality of fixing frames are arranged on the vertical rods and located on the two sides of the box girder formwork, first detection pieces corresponding to the vertical rods in the length direction are arranged on the fixing frames, and detection rods of the first detection pieces abut against the supporting rods on the side faces of the vertical rods. When the full framing begins to settle, the first detection piece detects the settlement degree through downward pressing of the detection rod, and after the settlement degree exceeds the limit, workers reinforce the corresponding position of the full framing, so that the situation that due to uneven settlement of part of the position of the full framing, safety accidents are caused is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a monitoring structure for a full-bridge support of a cast-in-place box girder. Background Art

[0002] Cast-in-situ box girders are often used in large continuous bridges. Underneath these girders, a full-bridge support is erected to support them. Before the box girder is poured, the full-bridge support is pre-stressed to allow it to settle. However, due to geological variations in the ground, the full-bridge support can settle unevenly, causing some sections of the support to tilt, posing a safety hazard on the construction site.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the full-chassis support will produce uneven settlement under pre-stressing conditions, causing safety accidents. Utility Model Content

[0004] The purpose of this application is to provide a monitoring structure for a full-bridge support of a cast-in-place box girder, so as to improve the problem that the full-bridge support will produce uneven settlement under pre-stressing conditions, causing safety accidents.

[0005] This application provides a cast-in-situ box girder full-bridge support monitoring structure, which adopts the following technical solutions:

[0006] A monitoring structure for a cast-in-place box girder full-span support comprises a bridge pier, wherein one side of the pier is provided with a plurality of vertical poles hypothetically on the ground, support poles are provided between the vertical poles, the support poles on the side of the vertical pole close to the pier are connected to the side wall of the pier, the vertical poles and the support poles are combined into a full-span support, the top of the full-span support is provided with a box girder formwork, the vertical pole is provided with a plurality of fixing frames on one side of the box girder formwork, the fixing frame is provided with a detection piece 1 corresponding to the length direction of the vertical pole, and the detection rod of the detection piece 1 is against the support rod on the side of the vertical pole.

[0007] By adopting the above technical solution, the detection rod of the detection piece 1 on the fixed frame is abutted against the bottom of the support rod on the side of the vertical pole. When the full-floor bracket begins to sink, the support rod of the full-floor bracket also moves downward, and the detection rod at the bottom of the support rod is pushed downward, so that the detection piece 1 receives the signal of the downward movement of the detection rod and monitors the settlement degree of the full-floor bracket. When the settlement degree of the full-floor bracket exceeds the limit, the worker reinforces the corresponding position of the full-floor bracket based on the data measured by the detection piece 1 to prevent some positions of the full-floor bracket from sinking too quickly and causing the full-floor bracket to tilt, which affects the construction site and creates safety hazards.

[0008] Optionally, a support block is provided at the top end of the detection rod of the detection member 1, and a limiting groove is provided on the support block, and the limiting groove is in contact with the side wall of the support rod.

[0009] By adopting the technical scheme, the support block is arranged on the detection rod, the position of the support rod is determined through the limiting slot arranged on the support block, the support rod is prevented from falling from the side of the detection rod when the full-frame support is sinking, the detection rod cannot monitor the sinking degree of the full-frame support through the support rod, the detection piece one cannot accurately measure the sinking degree of each position of the full-frame support, and the uneven sinking of the full-frame support cannot be warned.

[0010] Optionally, a detection piece two is arranged on one side of the detection piece one on the fixing frame, a reflecting plate one corresponding to the detection piece two is arranged on the vertical rod above the detection piece two, and a receiver one is arranged on the vertical rod at the horizontal position of the reflecting plate one.

[0011] By adopting the technical scheme, the detection piece two is arranged on the fixing frame, the signal of the detection piece two is reflected by the reflecting plate one arranged on the vertical rod above the detection piece two, the receiver one can receive the signal of the detection piece two reflected by the reflecting plate one, the inclination degree caused by the sinking of the full-frame support is measured, the horizontal degree and the vertical degree of the full-frame support after sinking are measured through the position of the signal received by the receiver one, the inclination degree of the full-frame support is calculated, the inclination degree caused by the sinking of the full-frame support is monitored, and the inclination caused by the sinking of the full-frame support is prevented from being too large to cause danger.

[0012] Optionally, a fixing seat is arranged on one side of the pier close to the full-frame support, a fixing groove is arranged on the fixing seat, a detection piece three is arranged in the fixing groove, the detection piece three corresponds to the bottom of the support rod, a clamping groove is arranged on one side of the detection piece one on the fixing seat, a detection plate corresponding to the detection piece three is arranged in the clamping groove, and the detection plate corresponds to the bottom of the support rod.

[0013] By adopting the technical scheme, the detection piece three is arranged on the fixing seat of the side wall of the pier, and the detection plate is arranged in the clamping groove arranged on the fixing seat, when the full-frame support starts to sink, the support rod moves downward with the sinking of the full-frame support, the support rod pushes the detection plate downward, the detection piece three monitors the sinking speed of the full-frame support through the downward movement of the detection plate, and the sinking speed of the full-frame support is prevented from being too fast to affect the construction site.

[0014] Optionally, a fixing block is arranged on the support rod above the detection piece three, the fixing block abuts against the top of the detection plate, a mounting plate connected with the detection plate is arranged on the bottom of the fixing seat, a positioning groove is arranged on the mounting plate, and a connecting rod connected with the fixing seat is arranged in the positioning groove.

[0015] By adopting the above technical solution, a fixing block is installed on the support rod to prevent the full-hall bracket from settling too quickly and being offset from the detection plate, so that the detection piece three cannot monitor the settlement speed of the full-hall bracket. A mounting plate is set at the bottom of the fixed seat to prevent the detection plate from falling from the slot under the push of the support rod, so that the settlement speed of the full-hall bracket measured by the detection piece three is inaccurate.

[0016] Optionally, an elastic member 1 is provided between the connecting rod and the mounting plate, and the elastic member 1 pushes the mounting plate so that the detection plate abuts against the fixing block.

[0017] By adopting the above technical solution, the elastic member 1 is set between the connecting rod and the mounting plate. After the support rod moves downward, the detection plate moves downward under the push of the support rod, and the elastic member 1 contracts, applying a reverse force to the mounting plate, so that the elastic member 1 pushes the mounting plate to make the detection plate pool counteract the fixed block on the support rod, thereby preventing the detection plate from continuing to move downward due to inertia, which will affect the detection result of the detection member 3.

[0018] Optionally, a detection member 4 is provided at one end of the detection member 1 close to the detection member 2, and the detection member 4 is connected to the surface of the fixing frame. A reflector 2 is provided on the support rod above the detection member 4 at a position corresponding to the detection member 4, and a receiver 2 is provided on the support rod at a horizontal position of the reflector 2. The receiver 2 and the reflector 2 are located at the same height to receive the signal of the detection member 4 reflected by the reflector 2.

[0019] By adopting the above technical solution, the detection piece four is set on the fixed frame, and the reflection plate two connected to the support rod above the detection piece four reflects the signal emitted vertically by the detection piece four. The reflection plate two reflects the signal of the detection piece four, so that the receiver two can receive the signal emitted by the detection piece four, monitor the inclination caused by the settlement degree of the full-height bracket, monitor the full-height bracket in the width direction of the box beam formwork, and prevent the detection piece one and the detection piece two from being unable to monitor the full-height bracket at other positions.

[0020] Optionally, a support frame is provided on a side of the detection member 1 close to the detection member 2, a support plate is provided on the support frame, and an elastic member 2 is provided on the side wall of the detection rod between the support plate and the support rod.

[0021] By adopting the above technical solution, a support frame is set on the fixed frame, the support plate is set on the support frame, and the elastic member 2 is used to ensure that the support block on the detection rod is always against the support rod, so that the detection result of the detection member 1 is more accurate.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Align the detection rod of the detection piece 1 on the fixed frame with the bottom of the support rod on the side of the vertical pole. When the full-height bracket begins to settle, the support rod of the full-height bracket also moves downward. Push the detection rod at the bottom of the support rod downward so that the detection piece 1 receives the signal of the detection rod moving downward and monitors the settlement of the full-height bracket. When the settlement of the full-height bracket exceeds the limit, the worker reinforces the corresponding position of the full-height bracket based on the data measured by the detection piece 1 to prevent the full-height bracket from settling too quickly in some parts and causing the full-height bracket to tilt, which will affect the construction site and create safety hazards.

[0024] 2. Install a second detection component on the fixed frame, and reflect the signal of the detection component by a first reflector plate installed on the support rod above the detection component, so that the first receiver can receive the signal of the detection component reflected by the first reflector plate, and measure the degree of inclination caused by the settlement of the full-chamber bracket. According to the position of the signal received on the first receiver, the horizontal and vertical degrees of the full-chamber uneven bracket after settlement are measured, and the inclination degree of the full-chamber bracket is calculated. The degree of inclination caused by the settlement of the full-chamber bracket can be monitored to prevent the full-chamber bracket from tilting too much due to settlement, which may cause danger.

[0025] 3. A fixing seat is provided on the side of the pier close to the full-bridge bracket, and a fixing groove is provided on the fixing seat. A detection piece three is provided in the fixing groove, and the detection piece three corresponds to the bottom of the support rod. A card slot is provided on one side of the fixing seat located on the detection piece, and a detection plate corresponding to the detection piece three is provided in the card slot, and the detection plate corresponds to the bottom of the support rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an overall schematic diagram of the monitoring structure of the full-bridge support of the cast-in-place box girder.

[0027] Figure 2 yes Figure 1 A partial enlarged view of middle A.

[0028] Figure 3 yes Figure 1 A partial enlarged view of B.

[0029] In the figure, 1. bridge pier; 2. full-bridge bracket; 21. vertical pole; 22. support rod; 3. box girder formwork; 4. fixing frame; 41. support frame; 42. support plate; 5. detection part one; 51. detection rod; 52. support block; 53. limit groove; 6. detection part two; 61. reflective plate one; 62. receiver one; 7. fixing seat; 71. fixing groove; 72. detection part three; 73. card slot; 732. detection plate; 74. mounting plate; 741. positioning groove; 75. connecting rod; 76. elastic part one; 8. fixing block; 9. detection part four; 91. reflective plate two; 92. receiver two; 10. elastic part two. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0031] A monitoring structure for cast-in-situ box beam full support, referring to Figure 1 and Figure 2 , including a pier 1, uprights 21 are erected on the ground on both sides of the pier 1, support rods 22 are connected to the uprights 21 through buckles to form a full-span bracket 2, a box beam formwork 3 is erected on the top of the full-span bracket 2, and the box beam is cast in the box beam formwork 3. A fixing frame 4 is set on the ground on the side of the upright 21, and a detection piece 5 is fixed to the upper surface of the fixing frame 4 with bolts so that the detection piece 5 corresponds to the length direction of the upright 21. The detection piece 5 is a pressure sensor, which is flexibly electrically connected to the control system. The detection rod 51 of the pressure sensor is against the support rod 22 on the side of the upright 21. During the settlement process of the full-span bracket 2, the support rod 22 presses the detection rod 51 of the pressure sensor downward, so that the pressure sensor measures the settlement degree of the full-span bracket 2. When the data measured by the pressure sensor exceeds the safety threshold, the control system issues an early warning based on the data, reminding workers to reinforce the bracket at the corresponding position.

[0032] Reference Figure 1 and Figure 2 , on the side of the detection piece 1 5 on the fixing frame 4, fix the detection piece 2 6 with bolts. The detection piece 2 6 is an infrared measuring instrument, which is flexibly electrically connected to the control system. On the vertical pole 21 above the detection piece 2 6, a reflective plate 1 61 is fixed by a clamp along the width direction of the box beam template 3 to reflect the infrared signal emitted by the infrared measuring instrument. On the vertical pole 21 at the horizontal position of the reflective plate 1 61, a receiver 1 62 is fixed with a clamp. The receiver 1 62 is a signal receiving device that receives the infrared signal reflected by the reflective plate 1 61. The receiver 1 62 analyzes the received infrared signal. When the full-floor bracket 2 settles unevenly, the position of the infrared signal received by the infrared receiving device will deviate. When the deviation value is too large, the control system will issue an early warning to notify the workers to reinforce the bracket at the corresponding position. Fix the detection piece 4 9 to the fixing frame 4 at one end of the detection piece 1 5 close to the detection piece 2 6 by bolts. The detection piece 4 9 is a flexible electrical connection between the infrared rangefinder and the control system. Fix the reflective plate 2 91 with a clamp on the support rod 22 above the detection piece 4 9 to reflect the infrared signal emitted by the infrared rangefinder. Fix the receiver 2 92 with a clamp on the support rod 22 horizontal to the reflective plate 2 91 along the length direction of the box beam template 3. The receiver 2 92 is a signal receiving device, which receives and analyzes the infrared signal reflected by the reflective plate 2 91. It only measures the distance between each part of the full-floor bracket 2 after uneven settlement of the full-floor bracket 2 to prevent the full-floor bracket 2 from tilting after uneven settlement.

[0033] Reference Figure 1 and Figure 2 , a support frame 41 is welded on the fixing frame 4 on the side of the detection piece 1 5 close to the detection piece 2 6 on the fixing frame 4, and a support plate 42 is welded on the support frame 41. The detection rod 51 of the detection piece 1 5 passes through the support plate 42 and is against the support rod 22. The support block 52 is fixed on the detection rod 51 by a clamping method, and a limiting groove 53 is provided on the support block 52, which is in contact with the support rod 22 to prevent the support rod 22 from separating from the detection rod 51 during the downward movement. An elastic member 2 10 is provided on the detection rod 51 between the support plate 42 and the support block 52. The elastic member 2 10 is a reset spring. When the detection rod 51 is pressed down by the support rod 22, the spring contracts and applies an upward force to the detection rod 51, so that the support block 52 on the detection rod 51 is in contact with the support rod 22, so that the data measured by the detection piece 1 5 is more accurate.

[0034] Reference Figure 1 and Figure 3 , connect the fixing seat 7 to the embedded parts on the pier 1 with bolts and fix it on the side of the pier 1 close to the full-bridge bracket 2. A fixing groove 71 is provided on the fixing seat 7. The detection piece 3 72 is fixed in the fixing groove 71 by bolts. The detection piece 3 72 is a measurement and comparison device. A slot 73 is provided on the fixing seat 7. A detection plate 732 is set in the slot 73. The detection plate 732 is a measuring plate wrapped with a metal frame. The measurement and comparison device measures the settlement speed of the full-bridge bracket 2 through the data fed back by the measuring plate, and issues an early warning through a flexible electrical connection with the control system to prevent the full-bridge bracket 2 from collapsing due to excessive settlement speed. A fixing block 8 is fixed to the support rod 22 with bolts. The fixing block 8 is a magnet, which adsorbs the detection plate 732 to prevent the detection plate 732 from falling. A mounting plate 74 is provided at the bottom of the fixing seat 7. A positioning groove 741 is provided on the mounting plate 74. The connecting rod 75 is passed through the positioning groove 741 and welded to the bottom of the fixing seat 7. The detection plate 732 is set on the mounting plate 74 by snapping. The detection plate 732 passes through the card slot 73 and is against the fixing block 8 fixed to the support rod 22 with bolts. An elastic member 76 is provided between the bottom of the mounting plate 74 and the connecting rod 75. The elastic member 76 is a spring. When the mounting plate 74 moves downward and contracts, it applies an upward force with the mounting plate 74 to prevent the measuring plate and the fixing block 8 from deviating and affecting the data measured by the detection member 72.

[0035] The implementation principle of the embodiment of this application is:

[0036] A heavy object is placed on the box beam formwork 3 to pre-load the full-frame support 2, causing it to settle. Inspection pieces 1 (5) spaced apart on the sides of the vertical bars 21 apply pressure to the inspection rods 51 on the inspection pieces 1 (5) by pressing down on the support rods 22, causing the inspection pieces 1 (5) to measure the downward pressure of the support rods 22. By comparing the data measured by inspection pieces 1 (5) at various positions, an early warning is issued for uneven settlement of the full-frame support 2. Inspection pieces 2 (6) and 4 (9) measure the data of the vertical bars 21 and support rods 22 on the full-frame support 2 along the width and horizontal directions of the box beam formwork 3, respectively, to provide an early warning of the tilt of the full-frame support 2 and prevent it from tilting too much due to uneven settlement, causing it to overturn. Inspection piece 3 (72) measures the settlement rate of the full-frame support 2 by moving the inspection plate 732 downward, providing an early warning of the settlement rate of the full-frame support 2. By inspecting each position of the full-frame support 2, the full-frame support 2 is prevented from causing damage due to uneven settlement.

[0037] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A cast-in-situ box girder full-span support monitoring structure, comprising a bridge pier (1), wherein a plurality of vertical poles (21) erected on the ground are provided on one side of the bridge pier (1), support rods (22) are provided between the vertical poles (21), the support rods (22) on the side of the vertical poles (21) close to the bridge pier (1) are connected to the side wall of the bridge pier (1), the vertical poles (21) and the support rods (22) are combined into a full-span support (2), and a box girder template (3) is provided on the top of the full-span support (2), characterized in that: The vertical pole (21) is located on both sides of the box beam template (3) and is provided with a plurality of fixing frames (4). The fixing frames (4) are provided with a detection piece (5) corresponding to the length direction of the vertical pole (21). The detection rod (51) of the detection piece (5) is against the support rod (22) on the side of the vertical pole (21).

2. The box girder full support monitoring structure according to claim 1, characterized in that: A support block (52) is provided at the top end of the detection rod (51) of the detection member 1 (5), and a limiting groove (53) is provided on the support block (52), and the limiting groove (53) is in contact with the side wall of the support rod (22).

3. The box girder full support monitoring structure according to claim 1, characterized in that: A detection member 2 (6) is provided on the fixing frame (4) at one side of the detection member 1 (5); a reflection plate 1 (61) corresponding to the detection member 2 (6) is provided on the vertical pole (21) above the detection member 2 (6); a receiver 1 (62) is provided on the vertical pole (21) at a horizontal position of the reflection plate 1 (61); the receiver 1 (62) receives the signal of the detection member 2 (6) reflected by the reflection plate 1 (61).

4. The box girder full support monitoring structure according to claim 1, characterized in that: A fixing seat (7) is provided on one side of the pier (1) close to the full-bridge bracket (2), a fixing groove (71) is provided on the fixing seat (7), a detection member 3 (72) is provided in the fixing groove (71), and the detection member 3 (72) corresponds to the bottom of the support rod (22), a clamping groove (73) is provided on one side of the fixing seat (7) located at the detection member, a detection plate (732) corresponding to the detection member 3 (72) is provided in the clamping groove (73), and the detection plate (732) corresponds to the bottom of the support rod (22).

5. The box girder full support monitoring structure according to claim 4, characterized in that: A fixing block (8) is provided on the support rod (22) above the detection member 3 (72), and the fixing block (8) abuts against the top of the detection plate (732). A mounting plate (74) connected to the detection plate (732) is provided at the bottom of the fixing seat (7), and a positioning groove (741) is provided on the mounting plate (74), and a connecting rod (75) connected to the fixing seat (7) is provided in the positioning groove (741).

6. The box girder full support monitoring structure according to claim 5, characterized in that: An elastic member (76) is provided between the connecting rod (75) and the mounting plate (74), and the elastic member (76) pushes the mounting plate (74) so ​​that the detection plate (732) abuts against the fixing block (8).

7. The box girder full support monitoring structure according to claim 3, characterized in that: A detection member 4 (9) is provided at one end of the detection member 1 (5) close to the detection member 2 (6), and the detection member 4 (9) is connected to the surface of the fixing frame (4). A reflection plate 2 (91) is provided on the support rod (22) above the detection member 4 (9) at a position corresponding to the detection member 4 (9). A receiver 2 (92) is provided on the support rod (22) at a horizontal position of the reflection plate 2 (91). The receiver 2 (92) and the reflection plate 2 (91) are located at the same height to receive the signal of the detection member 4 (9) reflected by the reflection plate 2 (91).

8. The box girder full support monitoring structure according to claim 3, characterized in that: A support frame (41) is provided on one side of the detection member 1 (5) close to the detection member 2 (6), a support plate (42) is provided on the support frame (41), and an elastic member 2 (10) is provided on the side wall of the detection rod (51) between the support plate (42) and the support rod (22).

Images