This paper describes an experimental study on the ultimate strength and fatigue strength of concrete filled and additionally reinforced tubular K-joint of truss girder.
The procedure entails four main steps: sea-keeping analysis, hydrodynamic load analysis and neural network, ultimate strength analysis, and fatigue strength analysis.
Together these microstructural features were responsible for the significantly higher 455 °C yield strength, ultimate tensile strength, and fatigue strength exhibited by the cast-and-extruded alloys compared with the as-cast alloys.
Under cyclic fatigue loading, the factors for the strengthening design of corroded RC beams fall in the order of stiffness, fatigue life, fatigue strength, and ultimate capacity.
Under cyclic fatigue loading, the consideration factors for the strengthening design of corroded RC beams fall in the order of stiffness, fatigue life, fatigue strength, and ultimate capacity.
(4) Similar to strengthening with non-prestressed CFRP sheets, the factors for the design of prestressed CFRP strengthening of corroded RC beams fall in the order of stiffness, fatigue life, fatigue strength, and ultimate capacity. .
Regardless of the bone surface topography the ratio of fatigue strength and ultimate shear strength of the interfaces was approximately 0.2.
The relationships between fatigue strength and ultimate tensile strength as well as hardness have been studied in high-strength NZK alloys (Mg yNd zZn xZr) and other magnesium alloys.
Strengthening with 1- and 2-layer CFRP sheets at low and medium corrosion levels, respectively, were sufficient to increase the fatigue life, fatigue strength, and ultimate strength of the beam to near the levels of the uncorroded beams, but the stiffness might still fall below that of the uncorroded control beam under fatigue loading.
