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The investigation of the self-feeding forces impact on the structural displacements in turbulent wind is presented. This impact is dealt with as a ratio of the displacement variances with and without the self-feeding forces, and a formula is proposed for this ratio on a 2DOF section-model. The paper also presents a method to determine the softness...
The flutter instability analysis of a bridge deck is based on flutter derivatives determined by wind tunnel tests on a section model having two degrees of freedom, heave and pitch (hereafter referred to as the heave-pitch model). The imperfections and the eccentricity that arise during the forced sinusoidal vibration of the section yield erroneous...
The adjustment of cable -stayed bridges needs the shortening or lengthening of several or all cables. Changing the length of a single cable produces the change in forces at other stays and at the stiffening girder. The calculation of the forces due to the adjustment of one stay seems to be advantageous by the force method. The paper gives an analyt...