CN214879682U - Gantry crane foundation monitoring system for river-crossing bridge construction - Google Patents
Gantry crane foundation monitoring system for river-crossing bridge construction Download PDFInfo
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- CN214879682U CN214879682U CN202120923326.7U CN202120923326U CN214879682U CN 214879682 U CN214879682 U CN 214879682U CN 202120923326 U CN202120923326 U CN 202120923326U CN 214879682 U CN214879682 U CN 214879682U
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Abstract
The utility model relates to a construction safety monitoring technology, concretely relates to portal crane basis monitored control system for striding river bridge construction, include strainometer and the laser range finder be connected with the data acquisition unit respectively, the strainometer includes pre-buried formula strainometer in the basic support column and sets up the surface type strainometer on the landing leg, is equipped with a plurality of laser range finders on interim track bridge, laser range finder sets up on the interim track bridge between the basic support column, the data acquisition unit links to each other with the surveillance center. The monitoring system is convenient for monitoring and analyzing the states of the foundation support columns and the support legs of the gantry crane, can find the abnormity of the gantry crane in time or give an alarm in time, overcomes the defect that the monitoring information lags due to manual periodical routing inspection, and ensures the construction safety of the gantry crane.
Description
Technical Field
The utility model relates to a construction safety monitoring technique, especially a portal crane basis monitored control system for striding river bridge construction.
Background
The construction of the large-span river-crossing bridge still has great challenge to the modern road and bridge construction technology, the bridge deck widening or maintenance construction needs to be carried out on the existing river-crossing bridge, many problems need to be solved are faced, the maintenance overhaul or dismantling of the existing river-crossing bridge is more and more caused by the fact that modern cities are mostly built near rivers to rivers, and the technical problem which needs to be solved in the technical field of modern road and bridge construction is formed.
The large-span bridge erecting gantry crane is provided, as shown in fig. 1, the temporary track bridges 4 on two sides of the existing bridge body 3 are provided with sliding tracks, the gantry crane further comprises a gantry crane gantry 1 arranged above the existing bridge body 3, supporting legs 2 are connected below the gantry crane gantry 1, the lower ends of the supporting legs 2 are correspondingly provided with sliding groove seats with the sliding tracks, supporting box girders and foundation supporting pillars 5 are arranged below the sliding groove seats, and the foundation supporting pillars 5 are arranged in an underwater concrete base layer 6. This longspan bridge portal crane starts from the construction angle ingeniously, realizes disposing the portal crane equipment above existing river-crossing bridge, easily realizes the hoist and mount operation, for the widening of existing river-crossing bridge, demolish or maintain the construction provide accurate hoisting equipment, guaranteed the equipment construction precision of wading.
In actual construction, can adopt the synchronous work of two portal cranes usually, including the portal crane needs the operation of bearing a burden, interim track bridge and the weight that supports the basis and bear are great, produce easily and warp and can bring the potential safety hazard, consequently, need monitor the support basis of portal crane, and traditional monitoring means is artifical periodic inspection, do not have the structure safety monitoring scheme to portal crane interim track bridge infrastructure, make portal crane and interim track bridge when meeting with the strong wind, the torrential rain is strikeed, the infrastructure receives external environment influence such as water and air corrosion for a long time, produce serious incident easily, cause very big economic loss and maintenance cost. Therefore, it is necessary to perfect a monitoring facility device for a gantry crane foundation for a cross-river bridge construction.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: when the portal crane is adopted to cross a river bridge construction, which is newly proposed at present, a safety monitoring scheme is lacked for the foundation support of the portal crane, and the portal crane is monitored by manual periodic inspection, so that the technical problem of great potential safety hazard exists.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a portal crane basis monitored control system for crossing river bridge construction, includes strainometer and the laser range finder who is connected with the data acquisition unit respectively, the strainometer includes pre-buried formula strainometer in basic support column and the surface type strainometer of setting on the landing leg, is equipped with a plurality of laser range finders on interim track bridge, the laser range finder sets up on the interim track bridge between basic support column, the data acquisition unit links to each other with the surveillance center.
This monitored control system sets up strainometer monitoring basis support column and landing leg, set up laser range finder between the basis support column, the deformation and the state of monitoring basis support column, and be connected strain gauge and laser range finder and data acquisition unit, link to each other data acquisition unit and surveillance center again, be convenient for monitor and the state of the basis support column and the landing leg of assay portal crane, can in time discover the unusual or timely warning of portal crane, eliminate the drawback that relies on artifical periodicity to patrol and examine monitoring information hysteresis, ensure the safety of portal crane construction.
As the utility model discloses an optimized scheme, still be equipped with box-type inclinometer on the basis support column, box-type inclinometer is connected with data acquisition center electricity. The box-type inclinometer is arranged on the basic supporting column to further monitor the state of the basic supporting column, and the accuracy of monitoring data is guaranteed.
As the utility model discloses an optimal selection scheme also is equipped with surface type strainometer on portal crane portal and interim track bridge. The surface strain gauges are arranged on the gantry crane gantry and the temporary track bridge, so that the stress change condition of the gantry crane gantry and the temporary track bridge is monitored, and the running state of the gantry crane is known in time.
As the preferred scheme of the utility model, the shell of the formula strainometer of burying, surface type strainometer, box-type inclinometer and laser range finder all adopts stainless steel material, and the surface coating has anticorrosive coating.
As the preferred scheme of the utility model, establish 2-4 built-in strainometers in the steel-pipe pile of every basis support column, surface type strainometer is installed through the mode of welding or bonding.
As the utility model discloses a preferred scheme, the data acquisition unit even has the power to have electrical source controller, electrical source controller even has solar cell panel. The power adopts the battery, sets up solar cell panel and carries out the energy storage, and is energy-conserving and clean energy.
As the utility model discloses a preferred scheme, be equipped with wireless communication device between data acquisition unit and the surveillance center. The wireless communication device employs a DTU module.
As the preferred scheme of the utility model, the data acquisition unit includes analog signal switch, vibrating wire signal conditioning circuit, adc, microcontroller, memory and RS485 interface.
As the utility model discloses an optimal scheme, surface type strainometer and the buried strainometer of formula of burying connect the analog signal switch, and analog signal switch connects the signal conditioning circuit that shakes string, and the signal conditioning circuit that shakes string connects analog to digital converter, and analog to digital converter connects microcontroller, and microcontroller connects memory, RS485 interface and DTU module, RS485 interface connection box-type inclinometer and laser range finder.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the monitoring system is convenient for monitoring and analyzing the states of the basic supporting columns and the supporting legs of the gantry crane, can find the abnormity of the gantry crane in time or give an alarm in time, overcomes the defect of lagging monitoring information by means of manual periodic routing inspection, and ensures the construction safety of the gantry crane;
2. a box-type inclinometer is arranged on the basic supporting column to further monitor the state of the basic supporting column, so that the accuracy of monitoring data is ensured;
3. the method comprises the following steps that surface strain gauges are arranged on a gantry crane gantry and a temporary track bridge, the stress change conditions of the gantry crane gantry and the temporary track bridge are monitored, and the running state of a gantry crane is known in time;
4. the power supply adopts a storage battery, and a solar cell panel is arranged for storing energy, so that the energy is saved and the solar cell panel is a clean energy source; the data acquisition unit is connected with the monitoring center through wireless communication, so that the method is suitable for the modern construction requirements, and the limitation of wired transmission is solved.
Drawings
Fig. 1 is a schematic structural diagram of a large-span bridge gantry crane.
Fig. 2 is the utility model discloses a gantry crane basis monitored control system's for striding river bridge construction schematic structure.
The labels in the figure are: the method comprises the following steps of 1-gantry crane portal frame, 2-supporting legs, 3-river-crossing bridge body, 4-temporary track bridge, 5-foundation supporting column and 6-concrete base layer.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1 and fig. 2, the gantry crane basic monitoring system for the river-crossing bridge construction in the embodiment includes strain gauges and laser range finders connected with a data acquisition unit respectively, the strain gauges include embedded strain gauges embedded in a basic support column 5 and surface strain gauges arranged on support legs 2, a plurality of laser range finders are arranged on a temporary track bridge 4, the laser range finders are arranged on the temporary track bridge 4 between the basic support columns 5, and the data acquisition unit is connected with a monitoring center.
The monitoring system of this embodiment sets up strainometer monitoring basis support column and landing leg, set up laser range finder between the basis support column, the deformation and the state of monitoring basis support column, and be connected strain gauge and laser range finder and data acquisition unit, link to each other data acquisition unit and surveillance center again, be convenient for monitor and the state of the basis support column and the landing leg of analytical portal crane, can in time discover the unusual or timely warning of portal crane, eliminate the drawback that relies on artifical periodic patrol and examine monitoring information lag, ensure the safety of portal crane construction.
Example 2
As shown in fig. 1 and 2, according to the gantry crane foundation monitoring system for cross-river bridge construction described in embodiment 1, a box-type inclinometer is further disposed on the foundation support column 5 of this embodiment, and the box-type inclinometer is electrically connected to a data acquisition center. The box-type inclinometer is arranged on the basic supporting column to further monitor the state of the basic supporting column, and the accuracy of monitoring data is guaranteed.
In this embodiment, the gantry crane gantry 1 and the temporary track bridge 4 are also provided with surface strain gauges. The surface strain gauges are arranged on the gantry crane gantry and the temporary track bridge, so that the stress change condition of the gantry crane gantry and the temporary track bridge is monitored, and the running state of the gantry crane is known in time.
Example 3
As shown in fig. 1 and 2, according to the gantry crane foundation monitoring system for cross-river bridge construction described in embodiment 2, housings of the embedded strain gauge, the surface strain gauge, the box inclinometer, and the laser range finder of this embodiment are all made of stainless steel materials, and an anticorrosive coating is sprayed on the surfaces of the housings.
Example 4
As shown in fig. 1 and 2, according to the gantry crane foundation monitoring system for the cross-river bridge construction described in embodiment 2 or embodiment 3, in the embodiment, 2 to 4 embedded strain gauges are arranged in a steel pipe pile of each foundation support column 5, and the surface type strain gauges are installed by welding or bonding.
Example 5
As shown in fig. 1 and 2, according to the gantry crane foundation monitoring system for the cross-river bridge construction according to one of embodiments 2 to 4, the data acquisition unit of this embodiment is connected with a power supply and is provided with a power supply controller, and the power supply controller is connected with a solar cell panel. The power of this embodiment adopts the battery, sets up solar cell panel and carries out the energy storage, and is energy-conserving and clean energy.
Furthermore, a wireless communication device is arranged between the data acquisition unit and the monitoring center. Be adapted to modern construction demand, combine the wireless communication device of current 5G technique to realize high-efficient stable signal transmission, solve wired transmission's limitation, the wireless communication device of this embodiment adopts the DTU module.
The data acquisition unit of this embodiment includes analog signal switch, vibrating wire signal conditioning circuit, adc, microcontroller, memory and RS485 interface.
Furthermore, the surface strain gauge and the embedded strain gauge are connected with an analog signal switch, the analog signal switch is connected with a vibrating wire signal conditioning circuit, the vibrating wire signal conditioning circuit is connected with an analog-to-digital converter, the analog-to-digital converter is connected with a microcontroller, the microcontroller is connected with a memory, an RS485 interface and a DTU (delay tolerant unit) module, and the RS485 interface is connected with a box-type inclinometer and a laser range finder.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a portal crane basis monitored control system for crossing river bridge construction, its characterized in that, includes strainometer and the laser range finder who is connected with the data acquisition unit respectively, the strainometer includes the buried strainometer of formula of burying in the foundation support post in advance and sets up the surface type strainometer on the landing leg, is equipped with a plurality of laser range finders on interim track bridge, the laser range finder sets up on interim track bridge between the foundation support post, the data acquisition unit links to each other with the surveillance center.
2. The gantry crane foundation monitoring system for river-crossing bridge construction according to claim 1, wherein a box-type inclinometer is further arranged on the foundation supporting column, and the box-type inclinometer is electrically connected with the data acquisition center.
3. The gantry crane foundation monitoring system for river-crossing bridge construction as claimed in claim 2, wherein surface strain gauges are also arranged on gantry crane portal frames and temporary track bridges.
4. The gantry crane foundation monitoring system for river-crossing bridge construction as claimed in claim 3, wherein shells of the embedded strain gauge, the surface strain gauge, the box-type inclinometer and the laser range finder are all made of stainless steel materials, and an anticorrosive coating is sprayed on the surface of the shells.
5. The gantry crane foundation monitoring system for river-crossing bridge construction according to claim 3 or 4, wherein 2-4 embedded strain gauges are arranged in the steel pipe pile of each foundation support column, and the surface strain gauges are installed in a welding or bonding mode.
6. The gantry crane foundation monitoring system for river-crossing bridge construction as claimed in claim 5, wherein the data acquisition unit is connected with a power supply and is provided with a power supply controller, and the power supply controller is connected with a solar cell panel.
7. The gantry crane foundation monitoring system for river-crossing bridge construction as claimed in claim 6, wherein a wireless communication device is arranged between the data acquisition unit and the monitoring center.
8. The gantry crane foundation monitoring system for river-crossing bridge construction according to claim 7, wherein the data acquisition unit comprises an analog signal switch, a vibrating wire signal conditioning circuit, an analog-to-digital converter, a microcontroller, a memory and an RS485 interface.
9. The gantry crane foundation monitoring system for river-crossing bridge construction according to claim 8, wherein the surface strain gauge and the embedded strain gauge are connected with an analog signal switch, the analog signal switch is connected with a vibrating wire signal conditioning circuit, the vibrating wire signal conditioning circuit is connected with an analog-to-digital converter, the analog-to-digital converter is connected with a microcontroller, the microcontroller is connected with a memory, an RS485 interface and a DTU module, and the RS485 interface is connected with a box-type inclinometer and a laser range finder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120923326.7U CN214879682U (en) | 2021-04-30 | 2021-04-30 | Gantry crane foundation monitoring system for river-crossing bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120923326.7U CN214879682U (en) | 2021-04-30 | 2021-04-30 | Gantry crane foundation monitoring system for river-crossing bridge construction |
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| Publication Number | Publication Date |
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| CN214879682U true CN214879682U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120923326.7U Active CN214879682U (en) | 2021-04-30 | 2021-04-30 | Gantry crane foundation monitoring system for river-crossing bridge construction |
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| Country | Link |
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| CN (1) | CN214879682U (en) |
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2021
- 2021-04-30 CN CN202120923326.7U patent/CN214879682U/en active Active
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