DESIGNING AND CALCULATING PRESTRESSED ANCHOR CABLE-PILE

In order to improve the theory of design and calculation about prestressed anchor cable-pile, save the cost of the project and determine the prestressed anchor cable-pile, according to the theorie of flexural strain on cantilever beam and beam on elastic foundation, the dividing-segment method and the method of subgrade reaction coefficient are used to calculate the strain and internal force of a pile when the deformation between the prestressed anchor and the pile reaches concordance. The deformation of the anchor cable pile is controlled and the internal force distribution along the pile is improved, so as to determine the anchor cable-pile radius, the prestressed value and anchor length. According to the variation of the pile's internal force, the methods of limiting state is used to make bilateral reinforcement through bending moment. Several successful cases show that the above approach is valid for practical use.