Metal roof panel monitoring and reinforcing and tripping damage identification integrated device

By installing reinforcement fixing support and optical fiber reinforcement on the metal roof panel, combining transmission lines and acquisition terminals, automatic monitoring and reinforcement of the metal roof panel is realized, solving the problems of difficult and high cost of manual inspection in the prior art, and effectively suppressing the fall of wind shedding in severe windy weather.

CN119826719APending Publication Date: 2025-04-15CHINA RAILWAY GUANGZHOU BUREAU GRP CO LTD STATION BUILDING CONSTR HEADQUARTERS +2
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Patent Information

Application Number
CN202510055332.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

The existing metal roof monitoring and reinforcement measures are difficult and costly. They are not suitable for regular monitoring and are prone to wind shedding in severe windy weather.

Method used

An integrated device for monitoring, reinforcement and tripping damage identification of metal roof panels is adopted, including reinforcement reinforcement support, optical fiber reinforcement reinforcement, transmission line and acquisition terminal. One end of the fiber reinforcement rib is fixedly connected to the metal roof panel, and the other end is connected to the reinforcement rib fixed support, which is used to monitor the strain data of the roof panel and enhance the wind resistance during the plastic deformation stage.

Benefits of technology

Automatic deformation monitoring of the service status of metal roof panels and identification of support tripping damage, reduce the amount of labor and monitoring costs, and can conduct regular monitoring to effectively inhibit wind shedding.

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Abstract

The invention provides a metal roofing board monitoring, reinforcing and tripping damage identification integrated device, and belongs to the technical field of metal roofing boards, the metal roofing board monitoring, reinforcing and tripping damage identification integrated device comprises a reinforcing rib fixing support, an optical fiber reinforcing rib, a transmission line and an acquisition terminal, one end of the optical fiber reinforcing rib is fixedly connected with the midspan of the metal roofing board, and the other end is connected with a purline through the reinforcing rib fixing support; the optical fiber reinforcing ribs are suitable for monitoring strain data of the metal roofing board when the metal roofing board is in an elastic deformation stage, and are used for enhancing the wind uplift resistance of the metal roofing board when the metal roofing board is in a plastic deformation stage; and the acquisition terminal is connected with the optical fiber reinforcing rib through a transmission line, receives the monitored strain monitoring data, and identifies the looseness and tripping damage of the metal roof board by monitoring the strain data. According to the invention, deformation monitoring can be automatically carried out on the metal roof panel, support tripping damage can be identified, the manual labor amount and the monitoring cost are reduced, and regular monitoring can be carried out.
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Description

Technical Field

[0001] The present invention belongs to the technical field of metal roof panels, and more specifically, relates to an integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels. Background Art

[0002] Metal roofing system is a material commonly used for building roof covering. It has the advantages of light weight, high strength, corrosion resistance, good waterproofness, etc., and has gradually become one of the most widely used materials in the modern construction industry. In the past few decades, with the development of industrialization and urbanization, the design and manufacturing technology of vertical lock seam metal roofing system has also been rapidly improved, so as to meet the different needs of different buildings, such as large-span buildings, high-rise buildings, etc. However, the vertical lock seam metal roofing system has light weight and weak connection characteristics, making it a roof with high wind sensitivity in the enclosure structure. For common strong winds, accidents of being blown away by the wind have occurred repeatedly, especially in large passenger stations, where the roof panels are easily blown away by the wind, and the peelings are scattered everywhere, which is extremely harmful to passengers and surrounding buildings.

[0003] Existing metal roof reinforcement measures usually use components such as wind-resistant clips, and the health monitoring of metal roofs is usually based on a wind-resistant clip structure, connecting the sensor and the wind-resistant clip to form a whole, so as to achieve the monitoring and reinforcement effect of the metal roof (such as Chinese patent CN111305479A, which discloses a corrugated metal roof panel wind-resistant reinforcement rib assembly). Although this method can achieve reinforcement and monitoring to a certain extent, it still has certain defects. First, since the metal roof has a small rigidity, and the fiber optic sensor reinforcement ribs mentioned in the patent have a large rigidity, the deformation of the metal roof is difficult to drive the deformation of the fiber optic sensor reinforcement ribs, thereby affecting the monitoring effect; and the sensor is exposed on the roof and is easily affected by the environment, such as wind, rain, solar radiation, etc., which will have a great impact on the monitoring data; secondly, since the sensor needs to be protected by a rigid metal shell and needs to be connected to the wind-resistant clip through a metal snap connector, these metal components are also easy to fall off with the metal roof when the wind is damaged in extreme windy weather.

[0004] The metal roof system is mainly subjected to the static force generated by the average wind, the dynamic force generated by the pulsating wind, and the stress and deformation caused by the thermal expansion and contraction caused by the temperature. In cold areas, there are also snow loads and frost heave, which also have a certain degree of impact on the roof. The metal roof is not only a wind-sensitive structure, but also a temperature-sensitive structure. Its damage is often caused by the constant changes in temperature and wind pressure throughout the year, which causes the roof lock edge and T-code support to loosen. Then, when encountering severe windy weather, the metal roof will be disengaged, and then the "chain effect" will cause a large area of ​​roof panels to fall off. Therefore, it is very important to monitor the service status of the metal roof and identify the damage caused by the support disengagement. Finding the damaged parts in advance and repairing them in time can avoid large-scale damage to the metal roof. However, manual inspections are difficult and costly, and are not suitable for regular monitoring.

[0005] In view of this, there is an urgent need to invent a metal roof panel anti-wind-lift reinforcement component with a monitoring function and a corresponding damage identification method, which can be deployed over a large area without increasing additional safety risks, and can monitor the actual service status changes of the metal roof panels, identify and locate potential risks in advance, and effectively prevent the wind-lifting and falling off in sudden severe windy weather. Summary of the invention

[0006] The purpose of the present invention is to provide an integrated device for monitoring, reinforcing and identifying disconnection damage of metal roof panels, aiming to solve the technical problems that manual inspection for monitoring the service status of metal roof panels and identifying disconnection damage of supports is difficult, costly and not suitable for regular monitoring.

[0007] To achieve the above object, the technical solution adopted by the present invention is to provide an integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels, comprising: Reinforced fixing brackets for connecting purlins of metal roof panels; An optical fiber reinforcement rib, one end of which is fixedly connected to the mid-span of the metal roof panel and the other end of which is connected to the reinforcement rib fixing support. When the metal roof panel is in the elastic deformation stage, the optical fiber reinforcement rib is suitable for monitoring the strain data of the metal roof panel. When the metal roof panel is in the plastic deformation stage, the optical fiber reinforcement rib is used to enhance the wind resistance of the metal roof panel, so as to strengthen the metal roof panel; A transmission line, one end of which is connected to the optical fiber reinforcement, and the transmission line is used to transmit strain monitoring data of the metal roof panel; The acquisition terminal is connected to the other end of the transmission line and is suitable for receiving the strain monitoring data of the monitored metal roof panel. The acquisition terminal is provided with a damage identification algorithm for the metal roof panel and identifies the looseness and tripping damage of the metal roof panel by monitoring the strain data.

[0008] In a possible implementation, the optical fiber reinforcement rib includes: An optical fiber sensing element, wherein the optical fiber sensing element is suitable for monitoring the deformation of the metal roof panel when the metal roof panel is in the elastic deformation stage, and obtaining strain monitoring data of the metal roof panel; The fiber protective layer is wrapped around the outside of the optical fiber sensing element. The fiber protective layer has a reserved elongation. When the metal roof panel enters the plastic deformation stage, the fiber protective layer is suitable for participating in the force to enhance the wind resistance of the metal roof panel and is used to reinforce the metal roof panel.

[0009] In a possible implementation, an optical fiber sensing element protection layer is disposed between the optical fiber sensing element and the fiber protection layer, and the optical fiber sensing element protection layer wraps the optical fiber sensing element.

[0010] In a possible implementation, the optical fiber sensing element is a optical fiber Brillouin sensing element or an optical fiber Bragg grating sensing element.

[0011] In a possible implementation, the fiber protection layer is made of basalt fiber woven cloth.

[0012] In a possible implementation, a connection hole for passing one end of the optical fiber reinforcement rib is provided on the reinforcement rib fixing support, and a buckle is provided in the connection hole, and the buckle is used to fix the optical fiber reinforcement rib; the reinforcement rib fixing support has a plurality of bolt holes, and the bolt holes are used to install bolts, and the bolts are used to fasten the purlins connected to the metal roof panel.

[0013] In a possible implementation, the transmission line is an armored optical cable.

[0014] In a possible implementation, one end of the optical fiber reinforcement rib is fixedly connected to the mid-span of the metal roof panel by high-strength structural adhesive or epoxy resin adhesive.

[0015] In a possible implementation, the other end of the optical fiber reinforcement rib is connected to the reinforcement rib fixing support by high-strength glue or a buckle.

[0016] In a possible implementation, the optical fiber sensing element protective layer is made of polyimide material.

[0017] The beneficial effects of the integrated device for monitoring, reinforcing and identifying tripping damage of a metal roof panel provided by the present invention are as follows: compared with the prior art, the integrated device for monitoring, reinforcing and identifying tripping damage of a metal roof panel provided by the present invention comprises a reinforcing rib fixing support, an optical fiber reinforcing rib, a transmission line and an acquisition terminal, the reinforcing rib fixing support is used to connect the purlins of the metal roof panel; one end of the optical fiber reinforcing rib is fixedly connected to the mid-span of the metal roof panel, and the other end is connected to the reinforcing rib fixing support, when the metal roof panel is in the elastic deformation stage, the optical fiber reinforcing rib is suitable for monitoring the strain data of the metal roof panel, and when the metal roof panel is in the plastic deformation stage, the optical fiber reinforcing rib is used to enhance the wind resistance of the metal roof panel to reinforce the metal roof panel; the transmission line One end is connected to the optical fiber reinforcement, and the transmission line is used to transmit the strain monitoring data of the metal roof panel; the acquisition terminal is connected to the other end of the transmission line, and is suitable for receiving the monitored strain monitoring data of the metal roof panel. The acquisition terminal is provided with a damage identification algorithm for the metal roof panel, and identifies the looseness and tripping damage of the metal roof panel by monitoring the strain data, thereby solving the technical problems that the monitoring of the service status of the metal roof panel and the identification of the tripping damage of the support are difficult and costly to be manually inspected, and are not suitable for regular monitoring. The terminal has the technical effects of automatically monitoring the deformation of the service status of the metal roof panel, identifying the tripping damage of the support, reducing the amount of manual labor and monitoring costs, and being able to perform regular monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a metal roof panel monitoring reinforcement and tripping damage identification integrated device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the fiber optic reinforcement arrangement structure of an integrated device for monitoring, reinforcing and identifying tripping damage of a metal roof panel provided by an embodiment of the present invention; Figure 3 A schematic longitudinal cross-sectional view of an optical fiber reinforcement rib of an integrated device for monitoring, reinforcing and identifying tripping damage of a metal roof panel provided by an embodiment of the present invention; Figure 4 A schematic diagram of a reinforcing rib fixing support structure of an integrated device for monitoring, reinforcing and identifying tripping damage of a metal roof panel provided by an embodiment of the present invention; Figure 5 A damage identification algorithm flow chart of a metal roof panel monitoring reinforcement and tripping damage identification integrated device provided by an embodiment of the present invention; Figure 6 A design flow chart of a metal roof panel monitoring, reinforcement and tripping damage identification integrated device provided in an embodiment of the present invention.

[0020] Description of reference numerals: 1. Reinforcement rib fixing support; 11. Connection hole; 12. Buckle; 13. Bolt hole; 2. Optical fiber reinforcement rib; 21. Optical fiber sensing element; 22. Fiber protective layer; 23. Optical fiber sensing element protective layer; 3. Transmission line; 4. Collection terminal; 5. Roof panel. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] Please also read Figures 1 to 4 Now, a metal roof panel monitoring reinforcement and tripping damage identification integrated device provided by the present invention is described. The integrated device for monitoring, reinforcing and identifying disconnection damage of metal roof panels comprises a reinforcing rib fixing support 1, an optical fiber reinforcing rib 2, a transmission line 3 and a collection terminal 4, wherein the reinforcing rib fixing support 1 is used to connect the purlins of the metal roof panel 5; one end of the optical fiber reinforcing rib 2 is fixedly connected to the mid-span of the metal roof panel 5, and the other end is connected to the reinforcing rib fixing support 1, under the action of environmental load, when the metal roof panel 5 is in the elastic deformation stage, the optical fiber reinforcing rib 2 is suitable for monitoring the strain data of the metal roof panel 5, and when the metal roof panel 5 is in the plastic deformation stage, the optical fiber reinforcing rib 2 is used to enhance the wind resistance of the metal roof panel 5 to reinforce the metal roof panel 5; one end of the transmission line 3 is connected to the optical fiber reinforcing rib 2, and the transmission line 3 is used to transmit the strain monitoring data of the metal roof panel 5; the collection terminal 4 is connected to the other end of the transmission line 3, and is suitable for receiving the monitored strain monitoring data of the metal roof panel 5, and the collection terminal 4 is provided with a damage identification algorithm for the metal roof panel 5, and identifies the looseness and disconnection damage of the metal roof panel 5 by monitoring the strain data.

[0023] The present invention provides an integrated device for monitoring, reinforcing and identifying disconnection damage of metal roof panels. Compared with the prior art, by setting optical fiber reinforcement ribs 2, it is possible to monitor the deformation of the metal roof panels 5 and resist the deformation of the metal roof panels 5, thereby improving the wind resistance of the metal roof panels 5 and reinforcing the metal roof panels 5. The present invention solves the technical problems that manual inspections for monitoring the service status of the metal roof panels 5 and identifying disconnection damage of the supports are difficult and costly and are not suitable for regular monitoring. The present invention has the technical effects of automatically monitoring the deformation of the service status of the metal roof panels 5, identifying disconnection damage of the supports, reducing manual labor and monitoring costs, and being able to perform regular monitoring.

[0024] The reinforcing rib fixing support 1 in this embodiment is connected to the purlin of the metal roof panel 5. A plurality of reinforcing rib fixing supports 1 can be arranged at intervals, and it is also convenient to arrange a plurality of optical fiber reinforcing ribs 2. Figure 1 As shown in , deformation monitoring is performed in different directions. The acquisition terminal 4 is a terminal capable of acquisition and calculation identification. The acquisition terminal 4 in this embodiment can use existing technology. By setting parameters on the acquisition terminal 4 and having an alarm function, the identification and judgment of looseness and tripping damage can be realized. For example, if the monitored deformation exceeds the preset value, it can be considered that there is a possibility of looseness and tripping damage of the metal roof panel 5 in this case. The acquisition terminal 4 can identify it, and the acquisition terminal 4 can instruct its own alarm to send an alarm signal to remind the staff to pay attention so that effective measures can be taken.

[0025] A number is set on each optical fiber reinforcement rib 2 to mark the position of each optical fiber reinforcement rib 2, so the deformation amount at each position on the metal roof panel 5 can be determined. By setting a damage identification algorithm on the acquisition terminal 4, the location of the metal roof tripping damage can be timely identified and located through the algorithm. If tripping damage occurs, the acquisition terminal 4 will send an alarm signal, and after taking wind-resistant measures for the metal roof panel 5, the metal roof panel 5 can be prevented from being damaged by wind. The optical fiber reinforcement rib 2 is set at the lower end of the metal roof panel 5, which is less affected by the environment and the monitoring data is more accurate.

[0026] The fiber optic reinforcement ribs 2 of the present invention can be arranged along the long side of the roof, along the short side of the roof, diagonally or in any direction. The acquisition terminal 4 of the present invention can be a mobile terminal, or a combination of a fixed terminal and a mobile terminal. The acquisition terminal 4 is a host computer, which is a human-computer interaction device. By analyzing the monitored data, the stress condition of the metal roof panel 5 is analyzed, and the wind-up risk is warned. It has the functions of acquisition, storage, analysis and visualization.

[0027] In some embodiments, see Figures 1 to 4The optical fiber reinforcement 2 includes an optical fiber sensor element 21 and a fiber protective layer 22. One end of the optical fiber sensor element 21 is electrically connected to the transmission line 3. When the metal roof panel 5 is in the elastic deformation stage, the optical fiber sensor element 21 is suitable for monitoring the deformation of the metal roof panel 5 and obtaining the strain monitoring data of the metal roof panel 5. The fiber protective layer 22 is wrapped around the outside of the optical fiber sensor element 21. The fiber protective layer 22 has a reserved elongation. When the metal roof panel 5 enters the plastic deformation stage, the fiber protective layer 22 is suitable for participating in the force, and is initially in a taut state. Then, the metal roof panel 5 can be restrained from continuing to deform, so as to enhance the wind resistance of the metal roof panel 5, and is used to reinforce the metal roof panel 5, that is, the fiber protective layer 22 shares a part of the wind force, thereby improving the wind resistance of the metal roof panel 5 and achieving a reinforcement effect. When the metal roof panel 5 is in the elastic deformation stage, the optical fiber sensor element 21 does not participate in the force, but only plays a role in deformation monitoring. In the plastic deformation stage, it is necessary to participate in the force, play a role in resisting the deformation of the metal roof panel 5, enhancing the wind resistance, and reinforcing the metal roof panel 5. That is, the length of the fiber protective layer 22 is greater than the length of the optical fiber sensor element 21, and the extra length is retained in the middle of the fiber protective layer 22, such as Figure 3 as shown in .

[0028] The metal roof panel 5 deforms under the action of external loads. Since the deformation at the mid-span position is the largest, the optical fiber sensor element 21 is deformed, thereby obtaining strain monitoring data. The strain monitoring data is transmitted to the acquisition terminal 4 through the transmission line 3. The acquisition terminal 4 can further analyze the deformation of the metal roof panel 5 and the tripping damage based on the received strain data.

[0029] Preferably, the fiber protective layer 22 is made of a flexible reinforced fiber material, which does not cause additional safety hazards. In the present invention, the end of the metal roof panel 5 is connected to the roof through the reinforcing rib fixing support 1. When the connection between the reinforcing rib fixing support 1 and the metal roof panel 5 is loosened or disconnected, the strain of the optical fiber sensing element 21 near the reinforcing rib fixing support 1 will change significantly from the strain before the loosening. By monitoring the strain data, the damage of the loosening or disconnection of the metal roof panel 5 can be identified.

[0030] To protect the optical fiber sensing element 21, in some embodiments, refer to Figures 1 to 4A fiber optic sensor element protection layer 23 is provided between the fiber optic sensor element 21 and the fiber protection layer 22, and the fiber optic sensor element protection layer 23 is provided to wrap the fiber optic sensor element 21. The fiber optic sensor element protection layer 23 protects the fiber optic sensor element 21, and ensures the transmission efficiency and transmission quality of the optical signal of the fiber optic sensor element 21, while the fiber protection layer 22 is wrapped on the outer wall of the fiber optic sensor element protection layer 23, and plays a role in enhancing the wind resistance of the metal roof panel 5.

[0031] In some embodiments, see Figures 1 to 4 The optical fiber sensing element 21 adopts an optical fiber Brillouin sensing element or an optical fiber Bragg grating sensing element, and other types of sensors capable of measuring strain or elongation may also be selected.

[0032] In some embodiments, see Figures 1 to 4 The fiber protection layer 22 is made of basalt fiber woven cloth.

[0033] In order to achieve the connection effect between the optical fiber reinforcement rib 2 and the reinforcement rib fixing support 1, in some embodiments, refer to Figures 1 to 4 The reinforcing rib fixing support 1 is provided with a connection hole 11 for one end of the optical fiber reinforcing rib 2 to pass through, and a buckle 12 is provided in the connection hole 11, and the buckle 12 is used to fix the optical fiber reinforcing rib 2; the reinforcing rib fixing support 1 has a plurality of bolt holes 13, and the bolt holes 13 are used to install bolts, and the bolts are used to fasten the purlins connected to the metal roof panel 5. The buckle 12 in this embodiment can adopt the existing technology, and can realize the fixation of the end of the optical fiber reinforcing rib 2, and then the optical fiber reinforcing rib 2 can be fixed on the reinforcing rib fixing support 1, wherein the buckle 12 will not slip or fall out from the connection hole 11, and the connection effect between the optical fiber reinforcing rib 2 and the reinforcing rib fixing support 1 is ensured.

[0034] In some embodiments, see Figures 1 to 4 The transmission line 3 is an armored optical cable, which is a wired transmission method that can transmit the monitored signals in real time, accurately and efficiently. Of course, wireless transmission can also be used.

[0035] In some embodiments, see Figures 1 to 4 One end of the optical fiber reinforcement rib 2 is fixedly connected to the mid-span of the metal roof panel 5 by high-strength structural adhesive or epoxy resin adhesive.

[0036] In some embodiments, see Figures 1 to 4 The other end of the optical fiber reinforcement rib 2 is connected to the reinforcement rib fixing support 1 through high-strength glue or buckle 12. In this embodiment, the optical fiber reinforcement rib 2 can be fixed to the reinforcement rib fixing support 1 through high-strength glue, or it can be fixed using the buckle 12 as described above.

[0037] In some embodiments, see Figures 1 to 4The optical fiber sensing element protection layer 23 is made of polyimide material.

[0038] Preferably, the elongation calculation formula of the fiber protective layer 22 is:

[0039] in, is the elongation of the fiber protective layer 22, is the length of the optical fiber reinforcement rib 2 when the metal roof panel 5 enters the plastic deformation stage, is the initial length of the optical fiber reinforcement 2, is the mid-span position when the metal roof panel 5 enters the plastic deformation stage, is the width of the metal roof panel 5, The spacing between the reinforcement fixing supports 1 of the metal roof panel 5.

[0040] In actual use, the above calculation formula may be used as a reference to reasonably design or arrange the length or elongation of the fiber protection layer 22 .

[0041] The present invention organically combines the stress deformation characteristics of the metal roof structure and the characteristics of the optical fiber sensing material (optical fiber reinforcement rib 2), and ensures that the roof panel 5 can monitor the deformation within the elastic deformation range under the action of long-term loads such as temperature, and can also improve the wind resistance of the metal roof panel 5 when encountering severe weather such as strong winds, and can realize long-term monitoring and tripping damage identification of the metal roof panel 5. The long-term stable load referred to in the present invention is temperature and solar radiation.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal roof panel monitoring reinforcement and tripping damage identification integrated device, characterized in that: include: Reinforced fixing brackets for connecting purlins of metal roof panels; An optical fiber reinforcement rib, one end of which is fixedly connected to the mid-span of the metal roof panel and the other end of which is connected to the reinforcement rib fixing support. When the metal roof panel is in the elastic deformation stage, the optical fiber reinforcement rib is suitable for monitoring the strain data of the metal roof panel. When the metal roof panel is in the plastic deformation stage, the optical fiber reinforcement rib is used to enhance the wind resistance of the metal roof panel, so as to strengthen the metal roof panel; A transmission line, one end of which is connected to the optical fiber reinforcement, and the transmission line is used to transmit strain monitoring data of the metal roof panel; The acquisition terminal is connected to the other end of the transmission line and is suitable for receiving the strain monitoring data of the monitored metal roof panel. The acquisition terminal is provided with a damage identification algorithm for the metal roof panel and identifies the looseness and tripping damage of the metal roof panel by monitoring the strain data.

2. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 1, characterized in that: The optical fiber reinforcement comprises: An optical fiber sensing element, wherein the optical fiber sensing element is suitable for monitoring the deformation of the metal roof panel when the metal roof panel is in the elastic deformation stage, and obtaining strain monitoring data of the metal roof panel; The fiber protective layer is wrapped around the outside of the optical fiber sensing element. The fiber protective layer has a reserved elongation. When the metal roof panel enters the plastic deformation stage, the fiber protective layer is suitable for participating in the force to enhance the wind resistance of the metal roof panel and is used to reinforce the metal roof panel.

3. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 2, characterized in that: An optical fiber sensing element protection layer is arranged between the optical fiber sensing element and the fiber protection layer, and the optical fiber sensing element protection layer wraps the optical fiber sensing element.

4. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 2, characterized in that: The optical fiber sensing element adopts an optical fiber Brillouin sensing element or an optical fiber grating sensing element.

5. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 2, characterized in that: The fiber protection layer is made of basalt fiber woven cloth.

6. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 1, characterized in that: The reinforcement rib fixing support is provided with a connection hole for one end of the optical fiber reinforcement rib to pass through, and a buckle is provided in the connection hole, and the buckle is used to fix the optical fiber reinforcement rib; the reinforcement rib fixing support has a plurality of bolt holes, and the bolt holes are used to install bolts, and the bolts are used to fasten the purlins connected to the metal roof panel.

7. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 1, characterized in that: The transmission line is an armored optical cable.

8. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 1, characterized in that: One end of the optical fiber reinforcement rib is fixedly connected to the middle of the metal roof panel by high-strength structural adhesive or epoxy resin adhesive.

9. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 1, characterized in that: The other end of the optical fiber reinforcement rib is connected to the reinforcement rib fixing support through high-strength glue or a buckle.

10. The integrated device for monitoring, reinforcing and identifying tripping damage of metal roof panels according to claim 3, characterized in that: The protective layer of the optical fiber sensing element is made of polyimide material.

Citation Information

Patent Citations

  • Metal roof plate reinforcing device with monitoring function

    CN111305479A