| | Eccentricity | With the increase of eccentricity, the height of the concrete flange compressed area decreases, the distribution of large compressive stress in the corresponding area gradually shifts from the middle of the column to the two ends of the column, and the shape of the large pressure distribution is also concentrated from the high through the column to the two ends of the column, respectively; the eccentricity has little effect on the stress of the reinforcement; the bearing capacity gradually decreases with the increase of the eccentricity, and the ductility has a small increase with the increase of the eccentricity. | | Load angle | As the loading angle changes, the neutral axis of the L-shaped column rotates and the pressurized area changes from 0°, 45°, 80°, 100°, and 135° first gradually increases and then gradually decreases; in 80° and 100°, the number of hoops reaching yield is the highest, and the bearing capacity tends to rise first with the loading angle and then gradually decreases at 80° and 100°, reaches the peak, and then gradually decreases. | | Concrete strength | With the increase of concrete strength, concrete stress, reinforcement stress, and concrete bearing capacity also increase gently, and the deflection corresponding to the ultimate bearing capacity decreases accordingly. | | Longitudinal reinforcement rate | As the diameter of longitudinal reinforcement increases, the reinforcement ratio of longitudinal reinforcement increases, and the load is mostly borne by the reinforcement in the web part of the L-shaped column, and the compressive stress in the flange part decreases accordingly; the ultimate bearing capacity increases, but the corresponding deflection increases instead. |
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