Steel bar type intelligent buckling-restrained brace

Abstract

The utility model discloses a kind of steel bar type intelligent buckling restrained brace, including steel bar type buckling restrained brace main body, steel bar type buckling restrained brace main body includes steel bar type core plate, sleeve, sleeve sealing plate, collection end ear ring and non-collection end ear ring, steel bar type core plate is through in sleeve, through heart pressure sensor one end is connected with collection end ear ring, the other end is connected with steel bar type core plate, steel bar type core plate other end is connected with non-collection end ear ring, steel bar type buckling restrained brace main body is installed through heart sensor, through heart sensor is electrically connected with data acquisition instrument, data acquisition instrument is electrically connected with electric switch, after electric switch is summarized the data of data acquisition instrument, transmission is to data terminal.The utility model is through being arranged on steel bar type buckling restrained brace structure health monitoring system, realized the real-time feedback of steel bar type buckling restrained brace output and displacement information, by buckling restrained brace and add real-time data acquisition and analysis, can realize the initiative prevention and control and performance optimization of structure safety.

Description

Technical Field

[0001] This utility model relates to a buckling restraint brace, specifically a steel bar type intelligent buckling restraint brace. Background Technology

[0002] Buckling-restrained braces (BRBs) typically consist of a core plate, a restraint sleeve, high-strength filler material, and unbonded material within the sleeve. The core plate is generally made of steel with a low yield point. Under seismic loading, the BRB dissipates seismic energy through the yield deformation of the core plate, exhibiting a full and symmetrical hysteresis curve. It is a common displacement-type energy dissipation and damping device.

[0003] After buckling restraint braces are installed, their design service life is generally the same as that of the main structure. During long-term use, especially after an earthquake, it is necessary to assess the service status of the buckling restraint braces. Buckling restraint braces whose output exceeds the yield force or whose deformation exceeds the yield displacement need to be replaced in time, and the corresponding main structure needs to be assessed and reinforced. However, the general methods for assessing the health status of buckling restraint braces after installation are cumbersome and the assessment results are difficult to be accurate. Utility Model Content

[0004] To address the problem that the health status of buckling-restrained braces cannot be assessed during service, this invention provides a steel bar-type intelligent buckling-restrained brace.

[0005] This utility model provides the following technical solution:

[0006] A steel bar-type intelligent buckling restraint brace includes a steel bar-type buckling restraint brace body. The steel bar-type buckling restraint brace body includes a steel bar-type core plate, a sleeve, a sleeve end plate, a data acquisition end lug, and a non-data acquisition end lug. The steel bar-type core plate passes through the sleeve. Sleeve end plates are provided at both ends of the sleeve. One end of a through-core pressure sensor is threadedly connected to the data acquisition end lug, and the other end of the through-core pressure sensor is threadedly connected to one end of the steel bar-type core plate. The other end of the steel bar-type core plate is threadedly connected to the non-data acquisition end lug. A through-core sensor is installed on the steel bar-type buckling restraint brace body.

[0007] Furthermore, the through-core sensor is electrically connected to the data acquisition instrument, the data acquisition instrument is electrically connected to the power exchange, and the power exchange is electrically connected to the data acquisition terminal. The through-core sensor includes a displacement sensor and a force sensor, which converts the displacement and force information of the steel bar buckling restraint support body into electrical signals and transmits them to the data acquisition instrument. The power exchange summarizes the data from the data acquisition instrument and transmits it to the data terminal.

[0008] Furthermore, the data acquisition instrument is an 8-channel cloud data acquisition instrument with the model number YBY-801, and the electrical switch is a one-fiber-sixteen-electrical fiber optic switch.

[0009] Furthermore, the through-hole sensor includes a displacement sensor and a force sensor. The displacement sensor is an LWH rod-type linear displacement sensor, model LWH-50; the force sensor is a through-hole pressure sensor, model BW-C-500.

[0010] Furthermore, the data terminal is a computer display terminal.

[0011] Furthermore, after the sleeve sealing plate has a hole that matches the diameter of the steel rod core plate, it is welded to the edge of the sleeve to seal the sleeve.

[0012] Furthermore, the sleeve is filled with grouting concrete through the opened grouting hole.

[0013] The structural health monitoring system consists of a through-heart sensor, a data acquisition instrument, an electrical switch, and a data acquisition terminal.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention incorporates a health monitoring system on a steel bar buckling-restrained brace. A through-core sensor, including a displacement sensor and a force sensor, is installed on the steel bar buckling-restrained brace body. This sensor converts the displacement and force information of the steel bar buckling-restrained brace body into electrical signals, which are then transmitted to a data acquisition unit. An exchange aggregates the data from the data acquisition unit and transmits it to a data terminal. This achieves real-time feedback of the force and displacement information of the steel bar buckling-restrained brace. By adding real-time data acquisition and analysis to the buckling-restrained brace, proactive prevention and performance optimization of structural safety can be achieved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the steel bar buckling restraint brace.

[0018] Figure 3 This is a schematic diagram of the through-heart sensor structure.

[0019] In the figure: 1. Steel bar buckling restraint support main body; 2. Data acquisition instrument; 3. Electrical switch; 4. Data acquisition terminal; 5. Sleeve; 6. Steel bar core plate; 7. Through-core sensor; 8. Sleeve sealing plate; 9. Non-acquisition end ear ring; 10. Acquisition end ear ring; 11. Grouting concrete. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model discloses a steel bar type intelligent buckling restraint support, including a steel bar type buckling restraint support body 1. The steel bar type buckling restraint support body 1 includes a steel bar type core plate 6, a sleeve 5, a sleeve sealing plate 8, a data acquisition end earring 10, and a non-data acquisition end earring 9. The steel bar type core plate 6 passes through the sleeve 5. The sleeve sealing plates 8 are set at both ends of the sleeve 5. One end of the through-core pressure sensor 7 is connected to the data acquisition end earring 10 by a thread, and the other end of the through-core pressure sensor 7 is connected to one end of the steel bar type core plate 6 by a thread. The other end of the steel bar type core plate 6 is connected to the non-data acquisition end earring 9 by a thread. The through-core sensor 7 is installed on the steel bar type buckling restraint support body 1.

[0022] The through-hole sensor 7 is electrically connected to the data acquisition instrument 2, the data acquisition instrument 2 is electrically connected to the power exchange 3, and the power exchange 3 is electrically connected to the data acquisition terminal 4. The through-hole sensor 7 includes a displacement sensor and a force sensor, which can convert the displacement and output force information of the steel bar buckling restraint support body 1 into electrical signals and transmit them to the data acquisition instrument 2. The power exchange 3 summarizes the data from the data acquisition instrument 2 and transmits it to the data terminal 4.

[0023] Data acquisition unit 2 is an 8-channel cloud data acquisition unit, model YBY-801;

[0024] Electrical switch 3 adopts a one-fiber-sixteen-electric fiber optic switch (SFP optical port).

[0025] The through-hole sensor 7 includes a displacement sensor 71 and a force sensor 72. The displacement sensor 71 is an LWH rod-type linear displacement sensor, model LWH-50; the sensor 72 is a through-hole pressure sensor, model BW-C-500.

[0026] The housing of displacement sensor 71 and the housing of force sensor 72 are fixedly connected by screws to form a through-hole pressure sensor. The pull rod of displacement sensor 71 is pressed against the sleeve sealing plate 8 to realize displacement measurement.

[0027] Data terminal 4 is a computer display terminal with compatible data monitoring software installed.

[0028] After the sleeve sealing plate 8 has a hole matching the diameter of the steel rod core plate 6, it is welded to the edge of the sleeve 5 and then the sleeve 5 is sealed. After the steel rod buckling restraint support body 1 is installed, the sleeve 5 is filled with grouting concrete 11 through the opened grouting hole.

[0029] A non-bonded sliding material layer is provided between the steel rod core plate 6 and the grouting concrete 11.

[0030] Force sensors are used to monitor the real-time force output of the steel bar buckling restraint brace, and displacement sensors are used to monitor the real-time displacement of the steel bar buckling restraint brace.

[0031] The structural health monitoring system consists of a through-heart sensor 7, a data acquisition instrument 2, an electrical switch 3, and a data acquisition terminal 4.

[0032] This invention achieves real-time feedback of the force and displacement information of steel bar buckling-restrained braces by installing a structural health monitoring system on the steel bar buckling-restrained brace. By adding a real-time data acquisition and analysis system to the buckling-restrained brace, proactive prevention and control of structural safety and performance optimization can be realized.

[0033] By installing structural health monitoring systems on buckling-restrained braces (BRBs), proactive prevention and performance optimization of structural safety can be achieved. Specifically, it enables early warning of buckling failure risks and fatigue damage assessment, thereby simplifying the previously cumbersome post-earthquake health monitoring and assessment process for BRBs, enabling precise maintenance, and significantly improving the seismic reliability and economy of structures. Furthermore, monitoring data can be cross-validated with previous theoretical calculations, providing practical data support for subsequent structural design optimization and the construction of digital twin models, promoting the continuous development of civil engineering towards digitalization and intelligence. Therefore, this technology not only ensures the healthy and reliable operation of buckling-restrained braces and main buildings throughout their entire life cycle but also represents a cutting-edge trend in intelligent disaster prevention and sustainable construction.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel bar-type intelligent buckling restraint brace, characterized in that: The system includes a steel bar buckling restraint support body (1), which includes a steel bar core plate (6), a sleeve (5), a sleeve sealing plate (8), a data acquisition end ear (10), and a non-data acquisition end ear (9). The steel bar core plate (6) passes through the sleeve (5), and the sleeve sealing plates (8) are provided at both ends of the sleeve (5). One end of the through-core sensor (7) is connected to the data acquisition end ear (10) by a thread, and the other end of the through-core sensor (7) is connected to one end of the steel bar core plate (6) by a thread. The other end of the steel bar core plate (6) is connected to the non-data acquisition end ear (9) by a thread. The through-core sensor (7) is installed on the steel bar buckling restraint support body (1).

2. The steel bar-type intelligent buckling restraint brace according to claim 1, characterized in that: The through-core sensor (7) is electrically connected to the data acquisition instrument (2), the data acquisition instrument (2) is electrically connected to the power exchange (3), and the power exchange (3) is electrically connected to the data acquisition terminal (4). The through-core sensor (7) includes a displacement sensor and a force sensor, which converts the displacement and output information of the steel bar buckling restraint support body (1) into electrical signals and transmits them to the data acquisition instrument (2). The power exchange (3) summarizes the data from the data acquisition instrument (2) and transmits it to the data acquisition terminal (4).

3. The steel bar-type intelligent buckling restraint brace according to claim 2, characterized in that: The data acquisition instrument (2) is an 8-channel cloud data acquisition instrument with the model number YBY-801, and the electrical switch (3) is a one-optical-sixteen-electrical fiber optic switch.

4. The steel bar-type intelligent buckling restraint brace according to claim 2, characterized in that: The through-hole sensor (7) includes a displacement sensor (71) and a force sensor (72). The displacement sensor (71) is an LWH rod-type linear displacement sensor with model number LWH-50. The force sensor (72) is a through-hole pressure sensor with model number BW-C-500.

5. The steel bar type intelligent buckling restraint brace according to claim 1, characterized in that: The data acquisition terminal (4) is a computer display terminal.

6. The steel bar-type intelligent buckling restraint brace according to claim 1, characterized in that: After the sleeve sealing plate (8) has a hole that matches the diameter of the steel rod core plate (6), it is welded to the edge of the sleeve (5) and then the sleeve (5) is sealed.

7. The steel bar type intelligent buckling restraint brace according to claim 1, characterized in that: The sleeve (5) is filled with grouting concrete (11) through the opened grouting hole.

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