Abstract: Available flexural strength formulas mainly focus on rectangular concrete beams exclusively prestressed with fiber-reinforced polymer (FRP) tendons. Moreover, an iterative procedure is required when FRP rupture governs the ...

Abstract: In order to improve the decision-making ability of exploration and development investment of petroleum enterprises, our study focuses on the optimization method of investment structure. First, this paper analyzed ten risk ...

Abstract: Due to a lack of bonds between external tendons and adjacent concrete and the potential variation in the eccentricities of the tendons (second-order effect), the analysis of the ultimate strength behavior of externally ...

Abstract: This study investigated the cooperative and competitive lane-changing (LC) behavior characteristics with limited traffic resources. The behaviors were described based on previous research. Data were obtained using video ...

Abstract: In this study, laboratory tests were conducted to obtain the geomechanical properties for the coal matrix and coal discontinuities. Computed tomography (CT) scanning technology was then used to detect the pre-existing ...

Abstract: Shear strength is a basic mechanical property of sea ice and directly affects the determination of ice loads on offshore structures in addition to the breakup behavior of ice cover in sea ice dynamics. This paper reports ...

Abstract: Full-scale data on the natural frequencies and the damping ratios of 114 highway bridges in China, and the dynamic characteristics monitoring data of four bridges under ambient excitation, have been collected and analyzed. ...

Abstract: Three-dimensional dual-Doppler observations with unprecedented finescale spatial and temporal resolution are used to characterize the vector wind field and vorticity generation terms in and near a weak, short-lived tornado. ...

Abstract: Dual-Doppler observations with unprecedented finescale spatial and temporal resolution are used to characterize the vector wind field in and near a tornado occurring near Kiefer, Oklahoma, on 26 May 1997. Analyses of the ...

Abstract: The capacity of the power grid in China is increasing rapidly. Because of the reliability of the multi-infeed direct current (DC) system in the grid, power-system damping is relatively weak. Realizing isolated island ...