Bridge collapse monitoring, alarming and loss reducing device

Abstract

The utility model discloses a bridge collapse monitoring, alarming and damage reducing device, which relates to the technical field of bridge safety monitoring and comprises an abutment and a cover beam in a bridge. The bridge collapse monitoring, alarming and loss reducing device comprises a power supply module for supplying power to the whole device, an abutment monitoring assembly for monitoring the displacement of bridge parts, a monitoring box for recording the state of a bridge, a signal lamp display module for prompting the state of the bridge, and a centralized monitoring terminal arranged outside the bridge, the abutment monitoring assemblies are arranged on the abutments of the bridges, each abutment monitoring assembly comprises a distribution box and a displacement change sensing switch, and the plurality of abutment monitoring assemblies are connected in series for redundancy. When the displacement of the abutment and the bridge exceeds the preset value, the bridge of the fixed section is monitored through the abutment assemblies connected in series, and the monitoring accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge safety monitoring technical field, concretely is a bridge collapse monitoring alarm and loss device. BACKGROUND

[0002] After the heavy rainfall in Shaanxi in July 2024, mountain river flood causes the bridge collapse of Daning expressway and the bridge collapse of Baocheng railway in Fengxian, causes the serious loss of national property and people's life and property, the existing bridge collapse detection technology mainly uses visual displacement monitor, level gauge, vibration sensor, laser sensor, vibration optical cable, monitoring cable and so on monitoring method to monitor, but is influenced by weather environment change, electromagnetic field environment, bridge structure difference, power supply access condition, is difficult to install or cannot realize uninterrupted work in practical application, lacks the front deceleration signal of automatic parking signal after bridge collapse, is easy to occur rear-end collision or brake distance is too long and slides into the dangerous area when emergency parking. SUMMARY

[0003] In view of the above technical problem, the utility model proposes the following technical scheme:

[0004] A bridge collapse monitoring alarm and loss device, including the pier of bridge, cap beam, the bridge collapse monitoring alarm and loss device includes the power module that provides power supply for whole device, the pier monitoring subassembly for monitoring the displacement of bridge component, the monitoring box for recording the state of bridge, the signal lamp display module for prompting the state of bridge, still have the centralized monitoring terminal set up outside the bridge.

[0005] Further, the pier monitoring subassembly is arranged on the pier of each bridge, and the pier monitoring subassembly includes a junction box and a displacement change sensing switch, and the plurality of pier monitoring subassemblies are connected in series with each other.

[0006] Further, the displacement change sensing switch is fixedly installed on the pier of the bridge, a plurality of displacement change sensing switches are arranged on the pier of the bridge, the plurality of displacement change sensing switches are connected in series with each other, and the displacement change sensing switch is used to monitor the excessive displacement of the pier in front, back, left and right directions.

[0007] Further, the displacement change sensing switch includes a sensing switch hanger, a travel steel wire rope and a circular ring expansion bolt, the hanger is fixedly installed at the bottom of the bridge, the circular ring expansion bolt is installed on the side face of the cap beam, one end of the soft steel wire rope is connected to the sensing switch hanger, the other end of the soft steel wire rope is connected to the circular ring expansion bolt, and the travel of the soft steel wire rope is the normal displacement of the bridge plus the straight travel of the steel wire rope.

[0008] Further, the wiring box is connected with the monitoring box through a cable, the wiring box is connected with the power module through a cable to provide power for the pier monitoring assembly, the wiring box selects a waterproof ABS plastic wiring box with ears for outdoor waterproof, and a through indicator lamp is arranged on a panel of the wiring box and is used to display the through of the monitoring power signal.

[0009] Further, the power module is used to provide power for the pier monitoring assembly and equipment in the monitoring box.

[0010] Further, the power module comprises a photovoltaic generator and a wind power generator to provide power.

[0011] Further, the power module further comprises a low-temperature storage battery group to store power.

[0012] Further, the monitoring box comprises a monitoring execution module, a remote transmission module and a backup power supply, the monitoring execution module receives the monitoring power signal transmitted by the pier monitoring assembly, the remote transmission module is used to send bridge state and bridge geographic coordinate information to a centralized monitoring terminal located at a remote place, and the backup power supply is used to provide emergency power supply for the monitoring execution module and the remote transmission module in the monitoring box.

[0013] Further, the monitoring execution module is additionally provided with a maintenance button.

[0014] Further, the signal lamp display module comprises a parking signal and a deceleration signal, the parking signal lamp comprises a display and an alarm, and the deceleration signal comprises a display and an alarm.

[0015] Further, the centralized monitoring terminal is arranged in a dispatch center or a monitoring center.

[0016] The device has the advantages that: (1) the device monitors the displacement of the pier and the bridge through the pier monitoring assembly, the bridge is monitored through the pier assembly in series when the displacement of the pier and the bridge exceeds a predetermined value, and the accuracy of monitoring is improved; (2) the device sets the signal lamp display module on the bridge, the signal lamp display module gives early warning to passing vehicles, and damage to the bridge is reduced when the bridge is displaced or changed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the device.

[0018] Figure 2 It is a structure schematic view of the pier monitoring assembly.

[0019] 10 - power module; 101 - bent cap; 102 - bridge; 103 - pier; 20 - pier monitoring assembly; 30 - monitoring box; 40 - backup power module; 50 - signal light display module; 60 - centralized monitoring terminal; 201 - wiring box; 202 - displacement change sensing switch; 203 - through indicating lamp; 204 - sensing switch hanger; 205 - travel wire rope; 206 - circular ring expansion bolt; 501 - parking signal; 502 - deceleration signal. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0021] As Figure 1 With Figure 2 As shown in the figure, a bridge 102 collapse monitoring alarm and damage device, including pier 103 in the bridge 102, bent cap 101, the bridge 102 is provided with power module 10 for the whole device to provide power, to monitor the pier monitoring assembly 20 of the bridge 102, to record the state of the bridge 102 monitoring box 30, to prompt the state of the bridge 102 signal light display module 50, there is also set in the bridge 102 outside the centralized monitoring terminal 60.

[0022] As Figure 1 Shown, the power module 10 is used to provide power to the pier monitoring assembly 20, monitoring box 30 equipment, the power module 10 includes photovoltaic generator, wind driven generator to provide power, the power module 10 also includes low temperature storage battery group to store electrical energy, the capacity of its low temperature storage battery group needs to meet the discharge time of not less than twenty days in the rainy and snowy days, low temperature weather, and the power supply voltage selected by the power module 10 can be divided into different grades according to the length of the bridge 102 in the field, the voltage used by the power supply can be selected as DC 24V, 36V, 48V, 72V and so on.

[0023] As Figure 1 Shown, the pier monitoring assembly 20 is arranged on each pier 103, the pier monitoring assembly 20 includes wiring box 201 and displacement change sensing switch 202, a wiring box 201 and several displacement change sensing switches 202 constitute a group of pier monitoring assembly 20, and a plurality of pier monitoring assemblies 20 are also connected in series with each other in redundancy, the pier monitoring assembly 20 is simple to install, can be detected according to different structures of specific bridge 102, and is suitable for bridges 102 of various structures.

[0024] As Figure 1 With Figure 2As shown, the wiring box 201 is connected with the monitoring box 30 through a cable, the wiring box 201 is connected with the power module 10 through a cable to provide power for the pier monitoring assembly 20, the wiring box 201 selects a waterproof ABS plastic wiring box with ears for outdoor waterproofing, the wiring box 201 is fixed on the end of the bent cap 101 through an expansion bolt, a through indicator lamp 203 is arranged on the panel of the wiring box 201, which is used to display the through of the monitoring power signal, so as to facilitate the determination of the excessive displacement change of the pier and the circuit fault range of the bridge 102.

[0025] As shown in the drawings, Figure 1 As shown in the drawings, Figure 2 As shown, the displacement change sensing switch 202 is fixedly installed on the pier 103 of the bridge 102 by a bolt, and a plurality of displacement change sensing switches 202 are arranged on the pier 103, the plurality of displacement change sensing switches 202 are connected in series with each other, and the displacement change sensing switch 202 is used to monitor the excessive displacement of the front, back, left and right of the pier 103 or the bridge 102, which is the main part of the device for collapse monitoring.

[0026] As shown in the drawings, Figure 1 As shown in the drawings, Figure 2 As shown, the displacement change sensing switch 202 includes a sensing switch hanger 204, a travel steel wire rope 205 and a circular ring expansion bolt 206, the hanger is fixed on the bottom of the beam 102 by a stainless steel expansion bolt (M8X60), and the hanger needs to be inserted into the epoxy resin in the concrete hole before being inserted into the bolt, so as to prevent the bolt from loosening due to the vibration of the bridge 102.

[0027] As shown in the drawings, Figure 2 As shown, the circular ring expansion bolt 206 is a stainless steel bolt, the specification of the circular ring expansion bolt 206 is M8 thread with a thread length of 80 centimeters, the circular ring expansion bolt 206 is installed on the side surface of the bent cap 101, and the epoxy resin needs to be inserted into the concrete hole before the bolt is installed.

[0028] As shown in the drawings, Figure 2 As shown, one end of the soft steel wire rope is connected to the sensing switch hanger 204, the other end of the soft steel wire rope is connected to the circular ring expansion bolt 206, and the travel of the soft steel wire rope is the length of the straightened steel wire rope plus the normal displacement of the bridge 102, the length of the soft steel wire rope can also be changed according to the actual construction process, when the bridge 102 and the bent cap 101 have a relative excessive displacement, the steel wire rope will be straightened and pulled to pull the displacement change sensing switch 202, so as to cut off the monitoring power signal to the next stage, and when the monitoring power signal is cut off, the through indicator lamp 203 on the panel of the wiring box 201 will light up, and when the internal switches of the plurality of displacement change sensing switches 202 on the pier are all turned off, it means that the pier 103 or the bridge 102 has a dangerous change.

[0029] like Figure 2 As shown, the displacement change sensor switch 202 here is a mechanical contact structure, which is not affected by electromagnetic interference and improves stability. The displacement change sensor switch 202 here adopts a non-self-resetting mechanical contact structure. When a danger alarm occurs but the bridge 102 is safe, the displacement change sensor switch 202 must be reset or the device must be repaired after the bridge 102 is confirmed to be normal by manual inspection.

[0030] like Figure 1 and Figure 2 As shown, the monitoring box 30 includes a monitoring execution module, a remote transmission module, and a backup power supply. The monitoring execution module receives the monitoring power signal transmitted from the pier monitoring component 20. The monitoring unit is equipped with a gravity-type JWXC-1700 relay. Normally, the monitoring circuit and the displacement change of the bridge 102 are normal (within the normal displacement range), the entire monitoring circuit is open, and the front node of the gravity-type JWXC-1700 relay inside the monitoring unit is closed. If the displacement change sensor switch 202 in the pier monitoring component 20 is open or the monitoring circuit has an open circuit or short circuit fault, that is, the rear node of the gravity-type JWXC-1700 relay is closed, realizing the "fault-safety" guidance. The monitoring execution module is also equipped with a maintenance button. When the device needs maintenance, the maintenance button is pulled out, and no alarm conditions are provided to the remote transmission module and the signal light display module 50.

[0031] like Figure 1 As shown, the remote transmission module adopts 4G+GPS technology. The external interface of the remote transmission module collects the status of the JWXC-1700 relay node, which is used to send the status of bridge 102 and the geographical coordinates of bridge 102 to the centralized monitoring terminal 60 located at a distance.

[0032] like Figure 1 As shown, the backup power supply is used to provide emergency power to the monitoring execution module and remote transmission module inside the monitoring box 30, and to provide conditional power to the monitoring execution module in an emergency. The backup power supply can also be connected to another backup power module 40 via cable to supplement power. The voltage in the backup power supply is based on the actual power supply on site. The backup power supply can be selected from DC24V, 36V, etc.

[0033] like Figure 1 As shown, the traffic light display module 50 includes a stop signal 501 and a deceleration signal 502 to alert oncoming vehicles. The traffic light display module 50 has different application schemes in different bridges 102. For example, the national standard traffic light is used in highway bridges 102, and the railway standard interruption signal is used in railway bridges 102.

[0034] like Figure 1As shown in the drawings, the stop signal 501 comprises a display and an alarm, a gravity relay drop node in the monitoring unit supplies power to the stop signal 501 lamp through a cable, the stop signal 501 lamp is lighted to show a red stop signal 501 to the oncoming vehicle, and the alarm is sounded at the same time, so as to indicate the driver to stop and not to cross the signal, prevent the vehicle and personnel from entering the dangerous bridge 102 range, and realize the damage reduction purpose, and the interval distance between the stop signal 501 and the speed reduction signal 502 needs to be determined according to the operating speed grade of the road (railway) and the vehicle braking response time.

[0035] As shown in the drawings, Figure 1 The speed reduction signal 502 drops the node in the monitoring unit, the speed reduction signal 502 comprises a signal lamp, and a backup power supply supplies power to the speed reduction signal 502 lamp through a cable, the signal lamp is lighted to show a flashing yellow lamp (a steady yellow lamp for railway) speed reduction signal 502 to the oncoming vehicle, and indicates the driver to take a speed reduction operation in time, so that the driver has a response time for emergency braking, and prevents rear-end collision or vehicle sliding into a dangerous area.

[0036] As shown in the drawings, Figure 1 The centralized monitoring terminal 60 is arranged in a dispatch center or a monitoring center, so as to facilitate the management layer to start an emergency plan in time, the centralized monitoring terminal 60 displays the state of each monitoring point bridge 102 according to the information transmitted back in real time by each monitoring box 30 setting point, and if a certain bridge 102 is dangerous, the centralized monitoring terminal 60 displays a red line segment on the corresponding bridge 102 geographic coordinate position in the electronic map according to the transmitted information, and pops up a dialog box to prompt “certain highway (railway) certain bridge is dangerous”, and has a voice prompt at the same time.

[0037] As shown in the drawings, Figure 1 In the device, the cable selected should be a railway signal cable with a core diameter of 1 mm, each loop should be composed of a pair of twisted core wires, and the transmission of power supply signals between each device is realized at the same time, and the collapse of the bridge 102 can also assist in realizing the collapse monitoring function.

[0038] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application.

Claims

1. A bridge collapse monitoring alarm mitigation device comprising a pier (103), a bent cap (101) in a bridge (102), characterized in that: The bridge (102) collapse monitoring alarm degradation device includes a power module (10) for providing power supply for the whole device, a pier monitoring assembly (20) for monitoring the displacement of the bridge (102) component, a monitoring box (30) for recording the state of the bridge (102), a signal lamp display module (50) for prompting the state of the bridge (102), and a centralized monitoring terminal (60) arranged outside the bridge (102); The pier monitoring assembly (20) is arranged on the pier (103) of each bridge (102), and the pier monitoring assembly (20) includes a wiring box (201) and a displacement change sensing switch (202), and the plurality of pier monitoring assemblies (20) are connected in series with each other; The displacement change sensing switch (202) is fixedly installed on the pier (103) of the bridge (102), a plurality of displacement change sensing switches (202) are arranged on the pier (103) of the bridge (102), the plurality of displacement change sensing switches (202) are connected in series with each other, and the displacement change sensing switch (202) is used for monitoring the excessive displacement of the pier (103) in front, back, left and right directions. The displacement change sensing switch (202) includes a sensing switch hanger (204), a travel steel wire rope (205) and a circular ring expansion bolt (206), the hanger is fixedly installed at the bottom of the bridge (102), the circular ring expansion bolt (206) is installed on the side of the bent cap (101), one end of the soft steel wire rope is connected to the sensing switch hanger (204), the other end of the soft steel wire rope is connected to the circular ring expansion bolt (206), and the travel of the soft steel wire rope is the straightening of the steel wire rope plus the normal displacement of the bridge (102).

2. The bridge collapse monitoring alarm and mitigation device of claim 1, wherein: The wiring box (201) is connected with the monitoring box (30) through a cable, the wiring box (201) is connected with the power module (10) through a cable to provide power for the pier monitoring assembly (20), the wiring box (201) is selected from a waterproof ABS plastic wiring box with ears, and a through indicator lamp (203) is arranged on the panel of the wiring box (201) to display the through of the monitoring power signal.

3. The bridge collapse monitoring and warning device of claim 1, wherein: The power module (10) is used to provide power for the pier monitoring assembly (20) and the equipment in the monitoring box (30); The power module (10) includes a photovoltaic generator and a wind turbine to provide power; The power module (10) further includes a low-temperature battery pack for storing power.

4. The bridge collapse monitoring and warning degradation device of claim 1, wherein: The monitoring execution module receives the monitoring power signal transmitted by the pier monitoring assembly (20), the remote transmission module is used to send the state of the bridge (102) and the geographic coordinate information of the bridge (102) to the centralized monitoring terminal (60) which is far away, and the standby power supply is used to provide emergency power supply for the monitoring execution module and the remote transmission module in the monitoring box (30).

5. The bridge collapse monitoring and alerting degradation device of claim 4, wherein: A maintenance button is additionally arranged on the monitoring execution module.

6. The bridge collapse monitoring alarm degradation device of claim 1, wherein: The signal lamp display module (50) comprises a parking signal (501) and a deceleration signal (502), the parking signal (501) comprises a display and an alarm, and the deceleration signal (502) comprises a display and an alarm.

7. The bridge collapse monitoring and warning device of claim 1, wherein: The centralized monitoring terminal (60) is arranged in a dispatch center or a monitoring center.

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