Abstract
The record of pole vaulting has progressed rapidly by the appearance of flexible fiberglass pole. In analysis of the dynamics of the pole vaulting, it is necessary to consider a high flexibility of pole. This report deals with a large deformation problem of pole subjected to concentrated loads at two supporting points. It is introduced a simple combination system consisted of a mass (vaulter) and a pole. Several formulae are derived for vertical and horizontal displacements of the vaulter and so on in terms of elliptic integrals. Moreover, time histories of pole deformation are presented. From the results, it is clarified that the initial conditions (e.g., vertical and horizontal velocities of the vaulter) and the applied bending moment during the vault play important roles.
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