ABSTRACT

A recent trend in the design of long-span bridges is the multispan cable-stayed bridges with three or more towers. A critical problem of multispan cable-stayed bridges is the stabilization of the central tower(s), which has resulted in increasing application of stabilizing cables. The Ting Kau Bridge (TKB) in Hong Kong is one of the few multispan cable-stayed bridges adopting stabilizing cables ever built. In this paper, the seismic response characteristics of multispan cable-stayed bridges with stabilizing cables and the effect of stabilizing cables on the seismic response are studied by referring to the Ting Kau Bridge.