CN113293696A - Intelligent support and bridge quality monitoring system comprising same - Google Patents
Intelligent support and bridge quality monitoring system comprising same Download PDFInfo
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- CN113293696A CN113293696A CN202110736076.0A CN202110736076A CN113293696A CN 113293696 A CN113293696 A CN 113293696A CN 202110736076 A CN202110736076 A CN 202110736076A CN 113293696 A CN113293696 A CN 113293696A
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- upper support
- connecting rod
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The embodiment of the invention provides an intelligent support and a bridge quality monitoring system comprising the same. The intelligent support in the scheme of the invention can monitor the working state of the support in real time by self, and comprises the following steps: vertical bearing pressure detected by the vertical bearing force sensor, horizontal displacement detected by the displacement measuring assembly, and corners detected by the corner sensor. After the intelligent support collects the state data, the state data can be uniformly sent to the monitoring host computer to judge whether the support is abnormal or not, so that the problems of the support can be found in time.
Description
Technical Field
The invention relates to the technical field of bridge supports, in particular to an intelligent support and a bridge quality monitoring system comprising the same.
Background
In bridge construction, it is often necessary to install a bearing between the bridge beam and the abutment. The installation of the support can make the actual stress condition of the bridge meet the design requirements and ensure that the bridge and the abutment are not damaged as far as possible. In order to achieve the purpose, the support is required to have enough vertical rigidity and strength, can reliably transfer all loads of a bridge body to the abutment, simultaneously bears the horizontal displacement, the corner and the deformation of the end part of the bridge span structure caused by the load action, lightens and relieves the vibration borne by the abutment, and adapts to the horizontal displacement, the corner and the deformation caused by the change of temperature and humidity.
The spherical support which is widely used at present mainly comprises an upper support plate, a lower support plate and a spherical crown lining plate. The horizontal displacement of the spherical support is realized by the sliding between the upper support plate and the plane plate on the spherical crown lining plate, and the rotation angle of the spherical support is realized by the spherical sliding between the spherical crown lining plate and the lower support plate. And the vertical pressure born by the upper support plate is directly transmitted downwards through the spherical crown lining plate and the lower support plate.
In the prior art, problems occur in the use process of a plurality of supports, such as displacement of the rotation angle of the support exceeding the designed value, loss of the rotation function, partial loss of the bearing function and the like. The above problems arise, which result in the loss of some or all of the functions of the support, and must be corrected in time. In the use process of the support, due to the fact that the support is in a severe position (narrow space, high ground distance and the like), the support is difficult to check in place. Because manual detection is not timely, the support can work under the fault condition, and the damage is brought to the bridge.
Disclosure of Invention
The embodiment of the invention aims to provide an intelligent support and a bridge quality monitoring system comprising the same, so that the support has a self-monitoring function, and the problems of the support in the prior art are solved.
In order to solve the above technical problem, a part of embodiments of the present invention provide an intelligent support, including an upper support plate, a spherical cap liner plate, a lower support plate, at least one displacement measurement component, a vertical bearing capacity sensor, and a rotation angle sensor, wherein:
at least one displacement measuring assembly for measuring the relative displacement of the upper support plate and the lower support plate;
the vertical bearing capacity sensor is used for measuring the vertical pressure born by the support;
the rotation angle sensor is used for measuring the inclination angle of the support.
In the intelligent support in some embodiments of the invention, the lower support plate comprises a sliding seat and a base; wherein:
the base is provided with a cavity, the cavity is filled with pasty substances, the cavity is suitable for the slide seat to be embedded into and is hermetically connected with the cavity, and the side wall of the cavity is provided with a sensor interface;
the vertical bearing capacity sensor is hermetically arranged at the sensor interface; the vertical pressure process upper bracket board with transmit behind the spherical crown welt extremely the slide, the slide extrudees the paste material, vertical bearing capacity sensor detects the extrusion force that the paste material received is in order to obtain vertical pressure.
In some embodiments of the present invention, each of the displacement measuring assemblies includes a connecting rod and an encoder:
one end of the connecting rod is fixed on the lower support plate; the encoder is rotatably connected with the second end of the connecting rod and is abutted against the upper support plate, and the encoder rolls along with the movement of the upper support plate to measure the relative displacement of the upper support plate and the lower support plate; or the first end of the connecting rod is fixed on the upper support plate; the encoder is rotatably connected with the second end of the connecting rod and is abutted against the lower support plate, and the encoder rolls along with the movement of the lower support plate to measure the relative displacement of the upper support plate and the lower support plate; and the corner sensor is arranged on the bridge bearing and used for measuring the inclination angle of the bridge bearing.
In some embodiments of the present invention, each of the displacement measuring assemblies comprises:
when the first end of the connecting rod is fixed on the lower support plate, the first end of the connecting rod is fixed on the inner surface or the side surface of the lower support plate, and the inner surface of the lower support plate is a side surface facing the upper support plate; the encoder is abutted against the inner surface of the upper support plate, and the inner surface of the upper support plate is a side surface facing the lower support plate;
when the first end of the connecting rod is fixed on the upper support plate, the first end of the connecting rod is fixed on the inner surface or the side surface of the upper support plate; the encoder abuts against an inner surface of the lower support plate.
In some embodiments of the intelligent support of the present invention, each of the displacement measuring assemblies further includes an elastic element:
when the first end of the connecting rod is fixed on the lower support plate, two opposite ends of the elastic element are respectively and fixedly connected with the connecting rod and the inner surface of the lower support plate;
when the first end of the connecting rod is fixed on the upper support plate, two opposite ends of the elastic element are fixedly connected with the inner surfaces of the connecting rod and the upper support plate respectively.
In some embodiments of the present invention, the smart support further includes a first seismic sensor and/or a second seismic sensor, wherein:
the first seismic sensor is arranged on the lower support plate and used for measuring the vibration frequency and the vibration amplitude of the lower support plate;
and the second seismic sensor is arranged on the upper support plate and is used for measuring the vibration frequency and the vibration amplitude of the upper support plate.
In some embodiments of the present invention, the smart mount further includes a sealing assembly:
the sealing assembly is arranged at the edge of the cavity, which is contacted with the bottom of the sliding seat.
In the intelligent support in some embodiments of the invention, the sealing assembly comprises an inner sealing ring, a middle sealing ring and an outer sealing ring which are sequentially connected in a nested manner from inside to outside; the inner sealing ring and the outer sealing ring are made of hard sealing materials; the middle sealing ring is made of elastic materials.
Some embodiments of the present invention further provide a bridge quality monitoring system, including a monitoring host and the intelligent support described in any one of the above:
the monitoring host receives the vertical pressure of the support sent by the vertical bearing capacity sensor in the intelligent support; the monitoring host receives relative displacement between the upper support plate and the base sent by the encoder in the intelligent support; the monitoring host receives the inclination angle of the support sent by the corner sensor in the intelligent support;
and the monitoring host machine judges whether the intelligent support is abnormal or not according to the vertical pressure, the relative displacement and the inclination angle.
Optionally, in the bridge quality monitoring system: the monitoring host receives the vibration frequency and the vibration amplitude of the base sent by the first seismic sensor in the intelligent support and the vibration frequency and the vibration amplitude of the upper support plate sent by the second seismic sensor;
the monitoring host determines the vibration frequency and the vibration amplitude of seismic waves according to the vibration frequency and the vibration amplitude of the base; and the monitoring host determines the seismic mitigation and isolation effect of the intelligent support according to the vibration frequency and the vibration amplitude of the base and the upper support plate. Compared with the prior art, the technical scheme provided by the embodiment of the invention at least has the following beneficial effects:
the invention provides an intelligent support and a bridge quality monitoring system comprising the same, wherein the intelligent support can monitor the working state of the support in real time by self, and the system comprises: vertical bearing pressure, horizontal displacement, rotation angle and the like. After the intelligent support collects the state data, the state data can be uniformly sent to the monitoring host computer to judge whether the support is abnormal or not, so that the problems of the support and the bridge can be found in time.
Drawings
FIG. 1 is a schematic diagram of a smart support according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a seal assembly according to an embodiment of the present invention;
FIG. 3a is a schematic cross-sectional view of a seal assembly according to an embodiment of the present invention;
FIG. 3b is a schematic cross-sectional view of a sealing assembly after being squeezed by a paste-like substance according to an embodiment of the present invention;
fig. 4 is a block diagram of a bridge quality monitoring system according to an embodiment of the present invention.
Wherein the reference numerals are:
101-an upper support plate; 102-a flat plate of spherical cap liner plate; 103-spherical cap liner plate; 104-spherical surface plate of spherical cap lining plate; 105-a slide; 106-paste-like substance; 107-a base; 108-vertical load bearing sensor; 109-a sensor interface; 110-a seal assembly; 111-inner seal ring; 112-intermediate seal ring; 113-outer sealing ring; 201-connecting rod; 202-an encoder; 204-a resilient element; 301-rotation angle sensor; 303-a second seismic sensor; 401-smart support; 402-monitoring the host.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or assembly referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment provides an intelligent support, as shown in fig. 1, including upper bracket board 101, spherical crown lining board 103 and undersetting board, the plane board 102 and the upper bracket board 101 of spherical crown lining board meet, and the sphere board 104 and the undersetting board of spherical crown lining board meet, still include at least one displacement measurement subassembly, vertical bearing capacity sensor and corner sensor, wherein: at least one displacement measuring assembly for measuring the relative displacement of the upper support plate and the lower support plate; the vertical bearing capacity sensor is used for measuring the vertical pressure born by the support; the rotation angle sensor is used for measuring the inclination angle of the support. Above intelligent support in the scheme can self-monitoring, the operating condition of real time monitoring support includes: vertical bearing pressure detected by the vertical bearing force sensor, horizontal displacement detected by the displacement measuring assembly, and corners detected by the corner sensor. After the intelligent support collects the state data, the state data can be uniformly sent to the monitoring host computer to judge whether the support is abnormal or not, so that the problems of the support can be found in time.
Specifically, as one way of implementation, as shown in the figure, the lower seat plate includes a slide 105 and a base 107; at least one displacement measurement component is arranged between the upper support plate 101 and the base 107, and the intelligent support further comprises a rotation angle sensor 301. Wherein: a cavity is formed in the base 107, a pasty substance 106 is filled in the cavity, the cavity is suitable for the sliding seat 105 to be embedded in, the sliding seat 105 is hermetically connected with the cavity, and a sensor interface 109 is formed in the side wall of the cavity; a vertical bearing force sensor 108 is sealingly arranged at said sensor interface 109; the vertical pressure is transmitted to the sliding seat 105 through the upper support plate 101 and the spherical cap lining plate 103, the sliding seat 105 extrudes the pasty substance 106, and the vertical bearing force sensor 108 detects the extrusion force applied to the pasty substance 106 to obtain the vertical pressure. Furthermore, the vertical pressure may also be detected by a measuring means such as a pressure switch.
As one way of implementation, each of the displacement measuring assemblies includes a connecting rod 201 and an encoder 202; as shown in the figure, the first end of the connecting rod 201 is fixed on the base 107 by welding, bolting, etc., the encoder 202 is rotatably connected with the second end of the connecting rod 201 and abuts against the upper support plate 101, and the encoder 202 rolls along with the movement of the upper support plate 101 to measure the relative displacement between the upper support plate 101 and the base 107; for different displacement measurement assemblies, the encoders can respectively measure the displacement in different directions, namely, the relative displacement of the upper support plate and the lower support plate in different directions can be measured by the different rolling directions of the encoders. In addition, the displacement measuring unit may be arranged in a reverse manner, that is, the first end of the connecting rod 201 is fixed to the upper support plate 101, the fixing manner may be selected from welding, bolt fastening, fixing, and the like, the encoder 202 is rotatably connected to the second end of the connecting rod 201 and abuts against the base 107, and the encoder 202 rolls along with the movement of the base 107 to measure the relative displacement between the upper support plate 101 and the base 107. In addition to this, the relative displacement between the upper and lower seat plates may also be measured by means such as a pull-rod type displacement sensor.
In an implementation manner, the rotation angle sensor 301 is disposed on the support and is used for measuring the inclination angle of the support. The rotation angle sensor 301 may be implemented by a commercially available tilt sensor, and preferably, a gyroscope is selected as the rotation angle sensor 301 in the present embodiment.
In practical applications, the rotation angle sensor 301 may be disposed on the upper support plate 101, and the rotation angle sensor 301 is used for measuring the inclination angle of the upper support plate 101. In the above solution, the upper support plate 101 is used for being fixedly connected with a bridge, the base 107 is used for being fixedly connected with a bridge pier, the relative displacement between the upper support plate 101 and the base 107 is the relative displacement between the bridge and the bridge pier, by arranging the encoder 202, when the relative displacement between the upper holder plate 101 and the base 107 occurs, the encoder 202 rotates along with the relative displacement, and when the relative displacement stops, by calculating the angle of rotation of the encoder 202, and combining the radius thereof, the arc length corresponding to the corresponding angle of rotation of the encoder 202 is calculated, the arc length is the relative displacement between the upper support plate 101 and the base 107, i.e. the relative displacement between the bridge and the bridge pier, the encoder 202 is used to measure the relative displacement between the bridge and the bridge pier, the encoder 202 has a small volume, and the actual displacement is not required to be generated in the relative movement direction, and the rotation is only generated at the original position, so that the occupied space is small.
And a corner sensor 301 is arranged on the support and used for measuring the real-time inclination angle of the support, namely the real-time inclination angle of the bridge. The vertical pressure is transmitted to the sliding seat 105 through the upper support plate 101 and the spherical cap lining plate 103, the sliding seat 105 extrudes the pasty substance 106, the pressure of the pasty substance 106 released to all directions around the sliding seat is uniform, and the corresponding relation between the extrusion force detected by the vertical bearing force sensor 108 and the vertical pressure received by the pasty substance 106 can be determined in a pre-test mode, so that the vertical pressure value can be directly converted according to the detection result of the vertical bearing force sensor 108.
The smart mount in the above solution may further include a first seismic sensor 302, disposed on the lower mount plate, for measuring the vibration frequency and the vibration amplitude of the lower mount plate. The seismic sensor 302 is installed on the lower support plate, and the vibration frequency and the vibration amplitude of the lower support plate, namely the vibration frequency and the vibration amplitude of the bridge pier, are obtained through measurement, so that the vibration frequency and the vibration amplitude of seismic waves and the real-time influence of an earthquake on the inclination degree of the bridge body can be mastered. In addition, the intelligent support in the above scheme may further include a second seismic sensor, which is disposed on the upper support plate 101 and is configured to measure the vibration frequency and the vibration amplitude of the upper support plate 101. The seismic sensors are arranged on the upper support plate and the lower support plate, so that the seismic isolation and reduction effects of the support can be determined according to the difference of the vibration frequency and the amplitude of the upper support plate and the lower support plate at the same time. Preferably, the first seismic sensor and the second seismic sensor are three-axis acceleration sensors. The triaxial acceleration sensor has high vibration measurement precision. In practical application, according to the demands of different measurement precisions, the first seismic sensor and the second seismic sensor can also adopt a double-shaft acceleration sensor or adopt a six-shaft sensor or even a nine-shaft sensor, and the functions of measuring vibration frequency and vibration amplitude can be realized by adopting the three-shaft acceleration sensor because the measurement of angular velocity, magnetic field intensity and direction is not involved in the scheme.
In the above solution, the arrangement positions of the connecting rod 203, the rotation angle sensor 301 and the seismic sensor 302 may be selected according to the actual application scenario, for example, the connecting rod, the rotation angle sensor 301 and the seismic sensor may be respectively and correspondingly arranged in the middle or the side of the upper and lower bases, and when the connecting rod, the rotation angle sensor 301 and the seismic sensor are arranged on the side, the connecting rod and the seismic sensor have the advantage of being convenient to install.
Preferably, the first end of the connecting rod 203 in each displacement measuring assembly is fixed on the inner surface of the base, and the inner surface of the base is a side surface facing the upper support plate; the encoder 202 abuts against an inner surface of the upper support plate 101, and the inner surface of the upper support plate 101 is a surface facing the base. Alternatively, the first end of the connecting rod 203 in each displacement measuring assembly is fixed on the inner surface of the upper support plate 101; the encoder 202 abuts the inner surface of the base 107. Further, the rotation angle sensor 301 and the second seismic sensor are disposed on an inner surface of the upper bracket plate 101, and the first seismic sensor 302 is disposed on an inner surface of the lower bracket plate. With the arrangement, the upper support plate 1 and the lower support plate respectively protect the corner sensor 301, the second seismic sensor and the first seismic sensor 302, and prevent the corner sensor 301, the second seismic sensor and the first seismic sensor 302 from being collided during installation or use.
In the above solution, each displacement measuring assembly further includes an elastic element 203, and when the first end of the connecting rod 201 is fixed to the lower support plate, two opposite ends of the elastic element 203 are respectively fixedly connected to the inner surfaces of the connecting rod 201 and the lower support plate; when the first end of the connecting rod 201 is fixed on the upper support plate 101, two opposite ends of the elastic element 203 are respectively fixedly connected with the inner surfaces of the connecting rod 201 and the upper support plate 101. The elastic element 203 can support the encoder 202 and the connecting rod 201, and the encoder 202 can be in good contact with the upper support plate or the lower support plate. The other end of the elastic member 203 is connected to the length center of the connection rod 201. According to the analysis of the supporting effect of the connecting rod 201 and the encoder 202, the elastic element 203 may be connected to the inner surface of the base 107 at an angle other than perpendicular, for example seventy degrees, fifty degrees, etc., and the elastic element 203 may be connected to a position other than the center of the length of the connecting rod 201.
In the above solution, the encoder 202 is an approximate cylinder, a connecting shaft extends from a central axis of the cylinder to one side, the second end of the connecting rod 201 is rotatably connected to the connecting shaft, when the upper support plate 101 and the base 107 are relatively displaced, since the encoder 202 abuts against the upper support plate 101 or the lower support plate and is fixedly connected to the base 107 through the connecting rod 201, a friction force is generated between the encoder 202 and the upper support plate 101 or the base to drive the encoder 202 to rotate in the same direction as the moving direction of the upper support plate 101 relative to the base 107, when the relative displacement between the upper support plate 101 and the base 107 is stopped, the friction force between the encoder 202 and the upper support plate 101 or the base disappears, and the encoder 202 stops rotating, the angle of rotation of the encoder 202 is combined with the radius thereof, and the calculated arc length corresponding to the angle, that is, the relative displacement between the upper support plate 101 and the base 107 is only related to the radius of the encoder 202 and the angle of rotation, and the encoder 202 does not need to generate the actual displacement in the linear direction following the relative displacement between the upper support plate 101 and the base 107, and only generates the pivot rotation at the installation position without occupying a large amount of space. In the above scheme, the fixing mode of the elastic element 203 and the lower support plate or the upper support plate can be selected from various fixing modes such as welding, clamping and the like, the fixing mode can be selected as a spring, and one end of the spring is connected with the middle part of the connecting rod 201. The elastic element 203 is set to be a spring, so that the structure is simple and the installation is convenient.
In the above solution, the paste-like substance 106 filled in the cavity is a rigid fluid, preferably silicone grease, and besides, the paste-like substance 106 may also be selected from other rigid fluids having similar characteristics to silicone grease, such as horse oil, butter, hydraulic oil and/or soft rubber. Specifically, the silicone grease is preferably a silicone grease with a strong lubricating function, and the lubricating silicone grease is a semitransparent paste which is refined by thickening a synthetic oil by an inorganic thickening agent and adding various additives and structure improving agents. It can be used for lubricating and sealing metal and plastic moving parts. It can also be used for lubricating, sealing and insulating various sliding parts in a humid environment. The silicone grease belongs to rigid fluid, when the sliding seat 105 extrudes the silicone grease, the pressure released by the silicone grease to all directions around the silicone grease is uniform, and the corresponding relation between the extrusion force detected by the vertical bearing capacity sensor 108 and the vertical pressure received by the silicone grease can be determined in a pre-test mode, so that the vertical pressure value can be directly converted according to the detection result of the vertical bearing capacity sensor 108.
Further, as shown in fig. 1 and 2, the smart cradle may further include a sealing assembly 110, where the sealing assembly 110 is disposed at an edge of the cavity contacting with the bottom of the sliding seat 105. The paste 106 is hermetically encapsulated by a sealing member 110. As shown in fig. 2, 3a and 3b, the sealing assembly 110 includes an inner sealing ring 111, a middle sealing ring 112 and an outer sealing ring 113 which are nested and connected from inside to outside; the inner sealing ring 111 and the outer sealing ring 113 are made of hard sealing materials; the middle seal ring 112 is made of an elastic material. When the seal assembly 110 is compressed, the intermediate seal ring 112 is elastically deformed to achieve sealing. Preferably, the inner sealing ring 111 and the outer sealing ring 113 are made of polytetrafluoroethylene material; the intermediate seal ring 112 is made of a rubber material. A circumferential groove is formed along the outer circumference of the inner sealing ring 111 in a circle, the middle sealing ring 112 is arranged in the circumferential groove, and a part of the middle sealing ring is positioned outside the circumferential groove; the inner circumference of the outer sealing ring 113 is closely attached to a portion of the middle sealing ring 112 located outside the circumferential groove. Referring to fig. 3a and 3b, when the outer sealing ring 113 is stressed and pressure is applied to the middle sealing ring 112, the middle sealing ring 112 may be deformed to be capable of interference fit with the circumferential groove, so as to be completely sealed. In specific implementation, the inner seal ring 111, the middle seal ring 112 and the outer seal ring 113 may also be implemented by selecting other materials with similar characteristics, as long as the inner seal ring 111 and the outer seal ring 113 have certain hardness to support the extrusion force, and the middle seal ring 112 needs to have certain elasticity, so that elastic deformation can occur when extrusion is received, and the sealing effect is increased.
In addition, in the above solution, the vertical bearing sensor 108 may be implemented by selecting a plurality of existing commercially available products, and the vertical bearing sensor 108 can monitor the pressure signal and can convert the pressure signal into a usable output electrical signal according to a certain rule, for example: pressure sensors such as MEMS sensors, diffused silicon pressure sensors, ceramic pressure sensors or stress pieces and the like; a pressure sensor may also be selected. In this embodiment, the vertical bearing force sensor 108 is preferably a MEMS sensor, which is a thin film element that deforms when subjected to a pressure. The MEMS sensor is internally provided with a strain gauge (piezoresistive type sensing) to measure such deformation, and can also measure by capacitively sensing a change in the distance between the two faces. The pressure value detected by the MEMS sensor can be deduced according to the deformation quantity. Preferably, the sensor interface 109 is connected with the vertical bearing force sensor 108 in a sealing manner through a thread fit. And elements for increasing the sealing effect, such as sealing strips, sealing rings and the like, can be arranged at the thread matching position.
In other embodiments of the present invention, a bridge quality monitoring system is provided, as shown in fig. 4, including a monitoring host 402 and an intelligent support 401 according to any of the above solutions. The monitoring host 402 receives the vertical pressure of the support sent by the vertical bearing capacity sensor in the intelligent support 401; the monitoring host 402 receives the relative displacement between the upper support plate and the base sent by the encoder in the intelligent support 401; the monitoring host 402 receives the inclination angle of the upper support plate sent by the rotation angle sensor in the intelligent support 401; and the monitoring host 402 judges whether the intelligent support is abnormal or not according to the vertical pressure, the relative displacement and the inclination angle. The standard ranges of the parameters of the intelligent support 401 in the normal working state can be stored in the monitoring host 402 as theoretical values, and when the monitoring host 402 receives the result sent by the intelligent support 401, the actual detection result is compared with the theoretical values to judge whether the intelligent support is abnormal.
In addition, the monitoring host 402 receives the vibration frequency and the vibration amplitude of the base sent by the first seismic sensor in the intelligent support 401, and the vibration frequency and the vibration amplitude of the upper support plate sent by the second seismic sensor; the monitoring host 402 determines the vibration frequency and the vibration amplitude of seismic waves according to the vibration frequency and the vibration amplitude of the base; and the monitoring host 402 determines the seismic mitigation and isolation effect of the intelligent support according to the vibration frequency and the vibration amplitude of the base and the upper support plate. By detecting and recording data in the earthquake process, data support can be provided for the subsequent research and development process of the bridge support, and the earthquake-resistant effect and the force transmission effect of the support in the earthquake are improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides an intelligent support, its characterized in that includes upper bracket board, spherical crown welt, bottom suspension bedplate, at least one displacement measurement subassembly, vertical bearing capacity sensor and corner sensor, wherein:
at least one displacement measuring assembly for measuring the relative displacement of the upper support plate and the lower support plate;
the vertical bearing capacity sensor is used for measuring the vertical pressure born by the support;
the rotation angle sensor is used for measuring the inclination angle of the support.
2. The smart mount of claim 1 wherein the lower mount plate comprises a slide and a base; wherein:
the base is provided with a cavity, the cavity is filled with pasty substances, the cavity is suitable for the slide seat to be embedded into and is hermetically connected with the cavity, and the side wall of the cavity is provided with a sensor interface;
the vertical bearing capacity sensor is hermetically arranged at the sensor interface; the vertical pressure process upper bracket board with transmit behind the spherical crown welt extremely the slide, the slide extrudees the paste material, vertical bearing capacity sensor detects the extrusion force that the paste material received is in order to obtain vertical pressure.
3. The smart mount of claim 1 wherein each of the displacement measurement assemblies comprises a connecting rod and an encoder:
one end of the connecting rod is fixed on the lower support plate; the encoder is rotatably connected with the second end of the connecting rod and is abutted against the upper support plate, and the encoder rolls along with the movement of the upper support plate to measure the relative displacement of the upper support plate and the lower support plate; or the first end of the connecting rod is fixed on the upper support plate; the encoder is rotatably connected with the second end of the connecting rod and is abutted against the lower support plate, and the encoder rolls along with the movement of the lower support plate to measure the relative displacement of the upper support plate and the lower support plate; and the corner sensor is arranged on the bridge bearing and used for measuring the inclination angle of the bridge bearing.
4. A smart mount as claimed in claim 3 wherein each of the displacement measuring assemblies:
when the first end of the connecting rod is fixed on the lower support plate, the first end of the connecting rod is fixed on the inner surface or the side surface of the lower support plate, and the inner surface of the lower support plate is a side surface facing the upper support plate; the encoder is abutted against the inner surface of the upper support plate, and the inner surface of the upper support plate is a side surface facing the lower support plate;
when the first end of the connecting rod is fixed on the upper support plate, the first end of the connecting rod is fixed on the inner surface or the side surface of the upper support plate; the encoder abuts against an inner surface of the lower support plate.
5. The smart mount of claim 4 further comprising a resilient element in each of the displacement measuring assemblies:
when the first end of the connecting rod is fixed on the lower support plate, two opposite ends of the elastic element are respectively and fixedly connected with the connecting rod and the inner surface of the lower support plate;
when the first end of the connecting rod is fixed on the upper support plate, two opposite ends of the elastic element are fixedly connected with the inner surfaces of the connecting rod and the upper support plate respectively.
6. The smart standoff of claim 1 further comprising a first seismic sensor and/or a second seismic sensor wherein:
the first seismic sensor is arranged on the lower support plate and used for measuring the vibration frequency and the vibration amplitude of the lower support plate;
and the second seismic sensor is arranged on the upper support plate and is used for measuring the vibration frequency and the vibration amplitude of the upper support plate.
7. The smart mount of any one of claims 2-6 further comprising a seal assembly:
the sealing assembly is arranged at the edge of the cavity, which is contacted with the bottom of the sliding seat.
8. The smart mount of claim 7 wherein:
the sealing assembly comprises an inner sealing ring, a middle sealing ring and an outer sealing ring which are sequentially connected in a nested manner from inside to outside; the inner sealing ring and the outer sealing ring are made of hard sealing materials; the middle sealing ring is made of elastic materials.
9. A bridge quality monitoring system, comprising a monitoring host and the intelligent support of any one of claims 1-8:
the monitoring host receives the vertical pressure of the support sent by the vertical bearing capacity sensor in the intelligent support; the monitoring host receives relative displacement between the upper support plate and the base sent by the encoder in the intelligent support; the monitoring host receives the inclination angle of the support sent by the corner sensor in the intelligent support;
and the monitoring host machine judges whether the intelligent support is abnormal or not according to the vertical pressure, the relative displacement and the inclination angle.
10. The bridge quality monitoring system of claim 9, wherein:
the monitoring host receives the vibration frequency and the vibration amplitude of the base sent by the first seismic sensor in the intelligent support and the vibration frequency and the vibration amplitude of the upper support plate sent by the second seismic sensor;
the monitoring host determines the vibration frequency and the vibration amplitude of seismic waves according to the vibration frequency and the vibration amplitude of the base; and the monitoring host determines the seismic mitigation and isolation effect of the intelligent support according to the vibration frequency and the vibration amplitude of the base and the upper support plate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116007482A (en) * | 2023-03-28 | 2023-04-25 | 中国建筑一局(集团)有限公司 | Building shockproof monitoring method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116007482A (en) * | 2023-03-28 | 2023-04-25 | 中国建筑一局(集团)有限公司 | Building shockproof monitoring method |
| CN116007482B (en) * | 2023-03-28 | 2023-08-29 | 中国建筑一局(集团)有限公司 | Building shockproof monitoring method |
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