Measurement method, measurement device, measurement system, and measurement program

    公开(公告)号:US12233923B2

    公开(公告)日:2025-02-25

    申请号:US17853187

    申请日:2022-06-29

    Abstract: A measurement method includes: generating second measurement data by performing filter processing on first measurement data; calculating a first deflection amount based on an approximate equation of deflection of a structure; calculating a second deflection amount by performing filter processing on the first deflection amount; calculating a third deflection amount based on the second deflection amount and a first-order coefficient and a zero-order coefficient which are calculated based on the second measurement data and the second deflection amount; calculating an offset based on the zero-order coefficient, the second deflection amount, and the third deflection amount; calculating a static response by adding the offset and a product of the first-order coefficient and the first deflection amount; calculating a first dynamic response by subtracting the static response from the first measurement data; calculating a second dynamic response by attenuating an unnecessary signal from the first dynamic response; and calculating an attenuation rate of the second dynamic response based on an envelope amplitude of the second dynamic response.

    APPARATUS AND METHOD FOR REINFORCING A STRUCTURAL ELEMENT

    公开(公告)号:US20230374744A1

    公开(公告)日:2023-11-23

    申请号:US18366203

    申请日:2023-08-07

    CPC classification number: E01D22/00 E04G23/0218 E02D31/06 E01D19/02

    Abstract: An apparatus and method for reinforcement of structural elements such as piles, posts, pillars, and pipes are disclosed. The apparatus includes an upper unit which may be fixed to the structural element above the waterline and a lower unit which is suspended from the upper unit via cables or other support members. The apparatus enables a reinforcing sleeve structure to be constructed in multiple segmented layers from above the waterline while the sleeve structure is lowered beneath the waterline. The lower unit guides the lower end of the sleeve structure down around the submerged portion of the structural element and supports the weight of the sleeve structure until it is fixed in place and filled with concrete or another reinforcing core filler material.

    Measurement Method, Measurement Device, Measurement System, And Measurement Program

    公开(公告)号:US20230019808A1

    公开(公告)日:2023-01-19

    申请号:US17853062

    申请日:2022-06-29

    Abstract: A measurement method includes: generating first measurement data based on observation data of an observation point of a structure; generating second measurement data by performing filter processing on the first measurement data; calculating a first deflection amount of the structure; calculating a second deflection amount by performing filter processing on the first deflection amount; approximating the second measurement data with a linear function of the second deflection amount to calculate a first-order coefficient and a zero-order coefficient; calculating a third deflection amount based on the first-order coefficient, the zero-order coefficient, and the second deflection amount; calculating an offset based on the zero-order coefficient, the second deflection amount, and the third deflection amount; and calculating a static response by adding the offset and a product of the first-order coefficient and the first deflection amount.

    Cantilevered expansion finger joint apparatus

    公开(公告)号:US11542671B2

    公开(公告)日:2023-01-03

    申请号:US17112867

    申请日:2020-12-04

    Abstract: A roadway expansion joint apparatus comprises at least one finger joint that extends across an expansion gap. Each finger joint comprises a base plate, a finger unit, a pivot and a cantilever support. The finger unit comprises a body and at least one unsupported finger extending longitudinally from a distal end of the body. The pivot pivotally couples the finger unit to the base plate about a vertical pivot axis. The cantilever support is located at or between the pivot and a proximal end of the finger unit; the cantilever support allows pivoting of the finger unit relative to the base plate about a vertical pivot axis and impedes pivoting of the finger unit relative to the base plate about a horizontal axis, thereby cantilevering the finger joint to the base plate at the cantilever support.

    Control device, communication system, and control method

    公开(公告)号:US11519765B2

    公开(公告)日:2022-12-06

    申请号:US16684763

    申请日:2019-11-15

    Abstract: When the measurement values measured by a first sensor among a plurality of sensors installed in a dispersed manner at a specific location, in first cycles are determined to be abnormal values, a control device activates the first sensor in second cycles that are shorter than the first cycles. Moreover, when the abnormal values are included in the trend of temporal variation, the control device activates a plurality of second sensors, which is installed around the first sensor, in the second cycles. Moreover, when the measurement values measured by the first sensor and the plurality of second sensors in the second cycles are included in the trend of surface-direction distribution, the control device outputs the measurement values measured by the first sensor and the plurality of second sensors.

    Arch foot maintaining device and maintenance method for achieving multi-degree-of-freedom displacement of arch foot

    公开(公告)号:US11066793B2

    公开(公告)日:2021-07-20

    申请号:US16639745

    申请日:2019-04-08

    Abstract: An arch foot maintaining device includes a plurality of supporting structures, and the supporting structure includes a base, two base supporting seats, a hydraulic jack, a roller, and a roller supporting seat. The base is a cuboid with equal length and width, a through hole running through side surfaces of the base is provided on the base. A vertical guide groove is provided on each of the two base supporting seats. The roller supporting seat is U-shaped and located between the two base supporting seats, and the roller is rotatably supported in the roller supporting seat. Two ends of a central axis of the roller are respectively located in the two guide grooves, the hydraulic jack is disposed within the base, and a top of the hydraulic jack abuts against a bottom of the roller supporting seat.

    CONCRETE DECK DEMOLITION SYSTEM AND METHOD

    公开(公告)号:US20210123195A1

    公开(公告)日:2021-04-29

    申请号:US17079086

    申请日:2020-10-23

    Applicant: Wei Wang

    Inventor: Wei Wang

    Abstract: A concrete deck demolition method for demolishing a concrete deck. The demolition method includes cutting two access windows into the concrete deck, installing a guide rail along a structural beam, making two tilted cuts on an upper surface of the structural beam, supporting the weight of the concrete deck utilizing an arching effect created by the geometry of the tilted cuts and lifting away a concrete deck cut portion for further demolition process.

    APPARATUS AND METHOD FOR REINFORCING A PARTIALLY SUBMERGED STRUCTURAL ELEMENT

    公开(公告)号:US20210115634A1

    公开(公告)日:2021-04-22

    申请号:US17099375

    申请日:2020-11-16

    Abstract: An apparatus and method for reinforcement of partially submerged structural elements such as piles, posts, pillars, and pipes are disclosed. The apparatus includes an upper unit which may be fixed to the structural element above the waterline and a lower unit which is suspended from the upper unit via cables or other support members. The apparatus enables a reinforcing sleeve structure to be constructed in multiple segmented layers from above the waterline which the sleeve structure is lowered beneath the waterline. The lower unit guides the lower end of the sleeve structure down around the submerged portion of the structural element and supports the weight of the sleeve structure until it is fixed in place and filled with concrete or another reinforcing core filler material.

    ARCH FOOT MAINTAINING DEVICE AND MAINTENANCE METHOD FOR ACHIEVING MULTI-DEGREE-OF-FREEDOM DISPLACEMENT OF ARCH FOOT

    公开(公告)号:US20210062441A1

    公开(公告)日:2021-03-04

    申请号:US16639745

    申请日:2019-04-08

    Abstract: The invention discloses an arch foot maintaining device and a maintenance method for achieving multi-degree-of-freedom displacement of an arch foot. The device includes a plurality of supporting structures, and the supporting structure includes a base (1), two base supporting seats (7), a hydraulic jack (2), a roller (3), and a roller supporting seat (4). The base (1) is a cuboid with equal length and width, a through hole running through side surfaces of the base (1) is provided on the base (1). A vertical guide groove is provided on each of the two base supporting seats (7). The roller supporting seat (4) is U-shaped and located between the two base supporting seats (7), and the roller (3) is rotatably supported in the roller supporting seat (4). Two ends of a central axis (14) of the roller (3) are respectively located in the two guide grooves, the hydraulic jack (2) is disposed within the base (1), and a top of the hydraulic jack (2) abuts against a bottom of the roller supporting seat (4). A plurality of supporting structures are freely combined to form an arch foot maintaining device, and an arch foot is sectioned and lifting/lowering of each roller (3) is controlled to achieve translation and rotation of the arch foot. The invention is simple in structure, flexible, convenient in operation, and highly adaptable, and therefore may be widely applied in arch foot maintenance and strengthening.

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