横向受载空心桩动力性能研究

该文阐述了采用综合刚度原理和双参数法,计算共振时桩在地面处的挠度和转角幅值,以及桩身最大弯矩的幅值及其发生的位置。再采用分析原理简单、便于编程的有限差分数值计算手段进行横向动荷载作用下桩身位移、侧土抗力和内力的计算。通过选择合理参数,计算出钢筋混凝土空心桩、实心桩在相同地质条件中相同水平动载作用下桩身的转角、位移及其最大弯矩,分析比较不同截面类型长桩的受力性能。

Study on Dynamical Performance of Laterally Loaded Hollow Pile

This paper sets forth the use of the composite stiffness principle and double-parameter process to calculate the deflection and the angle amplitude value of pile at the ground during sympathetic vibration,and the amplitude value of maximum bending moment of pile and its causing position.The simple analyzing principle and easy-programming of the finite difference fraction value calculating means is used to calculate the pile displacement,the side-soil resistances and internal forces of laterally loaded piles.Through selecting the reasonable parameters,the article can calculates the angle,displacement and its maximum bending moment of the steel reinforced concrete hollow pile and solid pile under the same level dynamical load action in the same geological conditions,and analyzes and compares the mechanical performances of long piles in the different section types.