Results 271 to 280 of about 159,392 (359)

Experimental study on shear behavior of high strength bolt connection in prefabricated steel-concrete composite beam

Composites Part B: Engineering, 2019
In order to study the shear behavior of high strength bolt connections in a prefabricated steel-concrete composite beam, eleven push-out specimens with different parameters were tested. In the tests, two failure modes of the specimens were observed.
Airong Liu, Yong-Lin Pi
exaly   +2 more sources

Development of a new deformation-controlled rock bolt: Numerical modelling and laboratory verification

Tunnelling and Underground Space Technology, 2020
To prevent large tunnel deformations caused by the rock bursts or the squeezing ground conditions, the rock bolts used should satisfy both strength capacity and the required deformability. Currently, the energy-absorbing rock bolts, such as the cone bolt
Yasuhiro Yokota, Zhiye Zhao
exaly   +2 more sources

An Ultrasmall Bolt Defect Detection Method for Transmission Line Inspection

IEEE Transactions on Instrumentation and Measurement, 2023
Bolt defect inspection is an important work in transmission line inspection. Due to the small size of bolts in the transmission line inspection images, existing algorithms are difficult to extract valuable features and achieve poor performance on bolt ...
Peng Luo   +5 more
semanticscholar   +1 more source

PA-DETR: End-to-End Visually Indistinguishable Bolt Defects Detection Method Based on Transmission Line Knowledge Reasoning

IEEE Transactions on Instrumentation and Measurement, 2023
A transmission line is the lifeline of a power system, while bolts play the role of connecting fittings and tightening conductors. However, bolts at different positions have different definitions of defects, which belongs to the problem of visually ...
Kecheng Zhang   +7 more
semanticscholar   +1 more source

Analysis of competitive failure life of bolt loosening and fatigue

Engineering Failure Analysis, 2021
Guangwu Yang   +2 more
exaly   +2 more sources

Deep learning‐based bolt loosening detection for wind turbine towers

Structural Control & Health Monitoring, 2022
Bolt loosening is a critical factor that triggers collapse of wind turbine tower structures, and a fast and accurate bolt loosening detection is of significant importance.
Xinyue Yang   +4 more
semanticscholar   +1 more source

Looseness monitoring of multiple M1 bolt joints using multivariate intrinsic multiscale entropy analysis and Lorentz signal-enhanced piezoelectric active sensing

Structural Health Monitoring, 2022
Bolts are widely used in the fields of mechanical, civil, and aerospace engineering. The condition of bolt joints has a significant impact on the safe and reliable operation of the whole equipment.
Rui Yuan   +4 more
semanticscholar   +1 more source

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