CN213633842U

CN213633842U - Cast-in-place roof beam monitoring device

Info

Publication number: CN213633842U
Application number: CN202021882972.5U
Authority: CN
Inventors: 刘波; 李扬; 孔坚; 贾军伟; 吕余; 吕正江; 陈国辉
Original assignee: China Railway No 5 Engineering Group Co Ltd; Fourth Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Current assignee: China Railway No 5 Engineering Group Co Ltd; Fourth Engineering Co Ltd of China Railway No 5 Engineering Group Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-07-06
Anticipated expiration: 2030-09-01

Abstract

A cast-in-place beam monitoring device comprises a coordinate acquisition unit and a control unit; the coordinate acquisition unit comprises GPS measurers arranged on a plurality of positions of the cast-in-place beam; the GPS measurer is electrically connected with the control unit and is used for collecting coordinate values of the part under the control of the control unit. Compared with the prior art, the utility model discloses a cast-in-place roof beam monitoring device can the automatic coordinate value in order to realize automatic monitoring on acquireing cast-in-place roof beam position through the GPS caliber.

Description

Cast-in-place roof beam monitoring device

Technical Field

The utility model relates to a monitoring device field especially relates to cast-in-place roof beam monitoring device.

Background

A bridge is a building that is erected on an obstacle and allows vehicles, pedestrians, and the like to smoothly pass through the building. With the rapid development of modern high-speed traffic, bridges are increasingly common in life, and can be applied to the erection of high-speed rails and highways besides the aspect of crossing rivers.

The construction method of the bridge comprises a prefabrication method of hanging each section of prefabricated concrete beam to a support for installation and a cast-in-situ method of arranging a support and a template on the support and directly pouring concrete to manufacture each section of concrete beam. The concrete beam manufactured by the cast-in-place method is called as a cast-in-place beam. The shape of the cast-in-place beam is influenced by the support, and the stability of the support structure has direct influence on the construction quality and safety. However, in the process of cast-in-place construction, as the load on the concrete pouring support gradually increases, the support deforms, so that the cast-in-place beam also deforms, even the cast-in-place beam collapses due to too large deformation and the support cannot be supported, and the progress and safety of construction are seriously affected.

In the prior art, a method for monitoring a cast-in-place beam is mainly realized through manual operation. Referring to fig. 1, the cast-in-place girder includes a bridge deck 1, a bottom plate 2, and a web 3. The bridge deck 1 is parallel to the bottom plate 2, and the web 3 is connected between the bridge deck 1 and the bottom plate 2 so as to form an enclosing structure in the cross section of the cast-in-place beam. The bottom plate 2 is connected to a support (not shown) of the bridge and supports the cast-in-place beam. Monitoring personnel regularly use a total station, a level gauge and the like to respectively detect the bridge deck 1, the bottom plate 2 and the web plate 3 so as to ensure that the deformation of each part of the cast-in-place beam is within a design range. However, the manual monitoring mode is time-consuming and labor-consuming, the probability of data errors is high, the deformation of the cast-in-place beam cannot be monitored at any time, the cast-in-place beam can be found only when large deformation occurs, the correction difficulty is high, the work time is consumed, and certain potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at, an automatic change cast-in-place roof beam monitoring device is provided.

The utility model discloses a following scheme realizes:

a cast-in-place beam monitoring device comprises a coordinate acquisition unit and a control unit; the coordinate acquisition unit comprises GPS measurers arranged on a plurality of positions of the cast-in-place beam; the GPS measurer is electrically connected with the control unit and is used for collecting coordinate values of the part under the control of the control unit.

Compared with the prior art, the utility model discloses a cast-in-place roof beam monitoring device can the automatic coordinate value on the cast-in-place roof beam position of acquireing through the GPS caliber to thereby carry out the comparison with initial coordinate value and acquire the deflection, and guarantee the deflection of cast-in-place roof beam through the control to the deflection at threshold value within range. The automatic monitoring mode is time-saving, labor-saving, timely and accurate, can realize the monitoring of the whole time period, and improves the safety and efficiency of construction.

The alarm device further comprises an alarm unit which is electrically connected with the control unit and alarms under the control of the control unit. And an alarm unit is used for automatically alarming.

Further, the coordinate acquisition unit further comprises a reset key, the GPS measurer and the control unit are respectively electrically connected with the reset key, and the reset key resets the GPS measurer under the control of the control unit. The timeliness and the accuracy of the detected data are ensured through the reset key.

Further, in the cross section of the cast-in-place beam, the outer side intersection point of the web plate and the bottom plate of the cast-in-place beam is set as a beam end, a point which is located on the web plate and has a distance from the beam end to 1/4 of the total length of the web plate is set as a web plate setting point, and the GPS measurer is respectively arranged in the center of the bridge deck plate of the cast-in-place beam and/or the center of the bottom plate and/or the beam end and/or the web plate setting point. And the data comprehensiveness is ensured by monitoring a plurality of parts.

Further, setting the cross section at the pouring starting position of the cast-in-place beam as a starting end surface, the cross section at the pouring ending position of the cast-in-place beam as a terminal surface, the cross section two meters away from the starting end surface as a first cross section, the cross section two meters away from the terminal surface as a second cross section, and the cross section at the midpoint of the total length of the cast-in-place beam as a third cross section; and the GPS measurer is arranged on the bridge deck center, the bottom plate center, the beam end and the web plate setting point in any two cross sections of the first cross section, the second cross section and the third cross section to obtain relative coordinate values. The accuracy is improved by the relative positioning.

Further, the GPS measurer is arranged on the bridge deck center, the bottom plate center, the beam end and the web plate arrangement point in the first cross section, the second cross section and the third cross section. The plurality of GPS measurers further improve the measurement accuracy.

Further, the control unit comprises a data processor and a data transceiver; the data transceiver is respectively electrically connected with the coordinate acquisition unit and the alarm unit; the coordinate values acquired by the coordinate acquisition unit are transmitted to the data processor through the data transceiver; the data processor sends a control signal to the alarm unit through the data transceiver.

Further, the data transceiver transmits and receives data and signals through wireless signals, wherein the wireless signals comprise Wifi, Bluetooth and data signals.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a cast-in-place beam in the prior art;

FIG. 2 is a schematic structural view of a cast-in-place beam projected along the direction A in the prior art;

fig. 3 is a schematic structural diagram of the middle coordinate acquisition unit of the present invention;

fig. 4 is a schematic structural diagram of the middle control unit and the alarm unit of the present invention.

Detailed Description

The utility model discloses a cast-in-place roof beam monitoring device monitors the deformation of in time discovering cast-in-place roof beam and correcting through the coordinate value to each position of cast-in-place roof beam automatically.

Specifically, please refer to fig. 3 and fig. 4 in combination, the cast-in-place beam monitoring apparatus of the present invention includes a coordinate collecting unit 10, a control unit 20 and an alarm unit 30. The coordinate acquisition unit 10 is arranged on a plurality of positions of the cast-in-place beam which is poured and acquires coordinate values on the positions; the coordinate values acquired by the coordinate acquisition unit 10 include absolute coordinates on the site and relative coordinates with respect to a reference. The control unit 20 receives the coordinate values acquired by the coordinate acquisition unit 10 and controls the alarm unit 30 to send an alarm when the coordinate values exceed a threshold value.

The coordinate acquisition unit 10 includes a GPS measurer 101, a restorer 102, and an energy supplier 103. The GPS measurer 101 is electrically connected to the control unit 20, and transmits the acquired coordinate values to the control unit 20. The GPS measurer 101 collects the coordinate values at any time and sends the coordinate values to the control unit 20 to realize monitoring at all time, or the control unit 20 periodically sends a signal to control the coordinate value collection to realize timing monitoring, for example, the control unit 20 sends a control signal every half hour to control the GPS measurer 101 to collect the coordinate values, or the control unit 20 is manually triggered to send a signal to control the GPS measurer 101 to collect the coordinate values to realize monitoring as required. Referring to fig. 1, in the cross section of the cast-in-place beam, the outer intersection point of the web 3 and the bottom plate 2 is set as a beam end 4, and a point which is located on the web 3 and is apart from the beam end 4 by 1/4 of the total length L of the web 3 is set as a web setting point 5. In the cross section of any cast-in-place beam, the GPS measurer 101 is arranged in the center of the bridge deck 1, and/or the center of the bottom plate 2, and/or two beam ends 4 and/or web plate setting points 5 on two sides through a fixer such as adhesive paper or iron wires, and absolute coordinates of the part where the GPS measurer is arranged are obtained through a GPS positioning function. Referring to fig. 2, further, as projected along the direction a in fig. 1, in the same cast-in-place beam, the cross section of the cast-in-place beam starting position is set as a starting end surface 6, the cross section of the cast-in-place beam ending position is a terminal surface 7, the cross section at the position two meters away from the starting end surface 6 is set as a first cross section (not shown in the figure), the cross section at the position two meters away from the terminal surface 7 is set as a second cross section (not shown in the figure), and the cross section at the midpoint of the total length of the cast-in-place beam is set as a third cross section (not shown in the figure), the GPS measuring devices 101 are respectively arranged on the center of the bridge deck 1, the center of the bottom deck 2, the two beam ends 4 and the web plate arrangement point 5 in any two cross sections of the first cross section, the second cross section and the third cross section, and the GPS measuring devices 101 at the same position of, the millimeter-scale relative coordinate value can be realized by matching with the carrier phase measurement. Preferably, the GPS measuring devices 101 are disposed at the centers of the first, second and third cross sections of the bridge deck 1, the center of the bottom plate 2, the two beam ends 4 and the web disposing points 5, and the GPS measuring devices 101 at the same positions in the plurality of different cross sections are relatively positioned. And the GPS measurer 101 is set up immediately after the cast-in-place beam of the corresponding cross section finishes pouring to acquire an initial coordinate value of the cross section and store the initial coordinate value into the control unit 20; for example, after the cast-in-place beam reaches a length of two meters, the GPS measuring device 101 is installed on the center of the bridge deck 1, the center of the bottom plate 2, the beam ends 4, and the web installation point 5, which are two meters away from the start end surface 6, and the initial coordinate value is collected. The energy supplier 103 supplies power to the GPS measurement device 101, and the energy supplier 103 is energy supply equipment such as a solar power generator and a storage battery. The reset device 102 is electrically connected to the GPS measurer 101, and resets the GPS measurer 101 to ensure timeliness and accuracy of the detection data. Further, the reset device 102 is electrically connected to the control device 20, the control device 20 controls the reset device 102 to reset, and when the control device 20 issues a reset signal, the reset signal controls the reset device 102 to reset the GPS measurement device 101, and the data reset of the GPS measurement device 101 is zero to perform coordinate value detection again.

The control device 20 comprises a data processor 200 and a data transceiver 201. The data transceiver 201 is electrically connected with the coordinate acquisition unit 10 and the alarm unit 30 respectively. The coordinate values acquired by the GPS measurer 101 are transmitted and received through the data transceiver 201 and transmitted to the data processor 200. In this embodiment, the data processor 200 is a calculator terminal, an initial coordinate value, a threshold of a deformation amount, and a threshold of a support deflection are pre-stored in the data processor 200, the coordinate value acquired by the GPS measurer 101 is compared with the initial coordinate value of the location to calculate and obtain the deformation amount and the support deflection value, and if the deformation amount and/or the support deflection value is smaller than the threshold, the GPS measurer 101 is controlled to continue to acquire the coordinate value; otherwise, the alarm unit 30 is controlled to give an alarm. The data processor 200 sends a reset signal to the repositor 102 via the data transceiver 201 at regular intervals to control the resetting of the GPS measurer 101.

The alarm unit 30 includes an alarm 301 and a relay 302. The relay 302 is electrically connected to the alarm 301 and controls the power supply of the alarm 301 to be turned on and off. After the data processor 200 sends a switch-on signal through the data transceiver 201, the relay 302 is in a normally-on state, the alarm 301 is powered on and gives an alarm until the data processor 200 gives a switch-off signal, or the relay 302 is returned to a normally-closed state through manual operation. In this embodiment, the alarm 301 is a speaker that sounds a buzzer when energized.

In addition, each unit in the cast-in-place beam monitoring device is powered by energy supply equipment such as a power supply or a solar generator, and the arrangement and the working mode of the energy supply equipment are conventional means in the prior art, so that the further description is omitted here. Further, the data transceiver transmits and receives data and signals through wireless signals, wherein the wireless signals comprise Wifi, Bluetooth, data signals and the like.

Compared with the prior art, the utility model discloses a cast-in-place roof beam monitoring device changes through the coordinate value of the same position of cast-in-place roof beam of coordinate acquisition unit automatic acquisition to whether exceed the threshold value scope through its deflection of control system automatic calculation, realize the automatic monitoring to cast-in-place roof beam, data analysis is accurate, timely. And only need accomplish the setting of once GPS caliber and just can monitor for a long time, regularly, reduce the man-hour that many times manual monitoring consumed greatly, improve the efficiency of construction. When the danger is found, an alarm can be given out in advance, and the construction safety is improved. In addition, GPS measurers are arranged at a plurality of positions of the cast-in-place beam for relative positioning, so that the monitoring precision is further improved.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. A cast-in-place beam monitoring device is characterized by comprising a coordinate acquisition unit and a control unit; the coordinate acquisition unit comprises GPS measurers arranged on a plurality of positions of the cast-in-place beam; the GPS measurer is electrically connected with the control unit and is used for collecting coordinate values of the part under the control of the control unit.

2. The cast-in-place beam monitoring device according to claim 1, further comprising an alarm unit, wherein the alarm unit is electrically connected with the control unit and gives an alarm under the control of the control unit.

3. The cast-in-place beam monitoring device according to claim 2, wherein the coordinate acquisition unit further comprises a reset key, the GPS measurer and the control unit are electrically connected to the reset key respectively, and the reset key resets the GPS measurer under the control of the control unit.

4. A cast-in-place beam monitoring device according to claim 3, wherein in the cross section of the cast-in-place beam, the outer intersection point of the web plate and the bottom plate of the cast-in-place beam is set as a beam end, a point which is located on the web plate and has a distance of 1/4 of the total length of the web plate from the beam end is set as a web plate setting point, and the GPS measuring devices are respectively arranged on the center of the bridge deck plate of the cast-in-place beam, and/or the center of the bottom plate, and/or the beam end and/or the web plate setting point.

5. The cast-in-place beam monitoring device according to claim 4, wherein a cross section at a cast-in-place beam casting starting position is a starting end surface, a cross section at a cast-in-place beam casting ending position is an end surface, a cross section two meters away from the starting end surface is a first cross section, a cross section two meters away from the end surface is a second cross section, and a cross section at a midpoint of the total length of the cast-in-place beam is a third cross section; and the GPS measurer is arranged on the bridge deck center, the bottom plate center, the beam end and the web plate setting point in any two cross sections of the first cross section, the second cross section and the third cross section to obtain relative coordinate values.

6. The cast-in-place beam monitoring device of claim 5, wherein the GPS gauges are provided at the decking center, the floor center, the beam ends and the web set points in the first cross section, the second cross section and the third cross section.

7. A cast-in-place beam monitoring apparatus as claimed in claim 6, wherein the control unit comprises a data processor and a data transceiver; the data transceiver is respectively electrically connected with the coordinate acquisition unit and the alarm unit; the coordinate values acquired by the coordinate acquisition unit are transmitted to the data processor through the data transceiver; the data processor sends a control signal to the alarm unit through the data transceiver.

8. The cast-in-place beam monitoring device of claim 7, wherein the data transceiver transmits and receives data and signals via wireless signals, the wireless signals including Wifi, bluetooth and data signals.