Bridges for Pedestrians and Cyclists
DOI link for Bridges for Pedestrians and Cyclists
Bridges for Pedestrians and Cyclists book
The wide variety of structural forms that may be used is one of the most differentiating aspects of footbridges. This diversity is possible because the imposed loads on such bridges are lower than those on road or railway bridges. Therefore, the self-weight of the structure is also lower and, consequently, dynamic phenomena have a big influence on the bridge conceptual design. Sensitivity to vibrations is becoming an even greater issue as the development of higher strength materials permits the use of smaller cross sections, or longer spans, in more slender structures. A reduction in the bending (vertical and horizontal) and torsional stiffnesses of the bridge, and, to a lesser extent, a reduction in mass, increase the probability of resonance occurring under the effects of pedestrians.