Study on Flexural Behavior of Cast-in-Place Concrete Y-Shaped Vibro-Pile

The influence of four independent variables of Y-shaped cross section configuration on flexural behavior was analyzed by flexural factor of section and area ratio according to actual load on Y-shaped vibro-pile under three conditions, i.e., sharp-angled location of cross section, concave arc position and typical tension point. Flexural behavior under above three conditions is quite different and it changes with variation law of four independent variables of the cross section. The same template radian exists while the other three independent variables are defined, so that flexural behavior under conditions of sharp-angled position and typical tension point reaches the minimum value. Solution of corresponding template radian of the minimum value of flexural behavior has been introduced by utilizing the mathematical analysis software, Mathematica.