Computer modelling of suspension bridges for light vehicular traffic

Abstract

Suspension bridges that can allow light vehicular traffic can be much more beneficial than pedestrian suspension bridges, since those will allow more economic benefits by facilitating the transport of goods. However such bridges are still not available in Sri Lanka. Therefore, it is useful to develop suspension bridges for light vehicular traffic that could be constructed with locally available expertise in modular fashion. In this study, the loads appropriate for such bridges are presented. The techniques for accurate computer modelling to determine the effects of various loading conditions arc developed. Case studies were carried out for 42m and 60m span bridges to illustrate the design method.