The need for large-scale bridges is constantly growing due to the enormous infrastructure development around the world. Since the 1970s many of them have been cable-stayed bridges. In 1975 the largest span length was 404 m, in 1995 it increased to 856 m, and today it is 1104 m. Thus the economically efficient range of cable-stayed bridges is tending to move towards even larger spans, and cable-stayed bridges are increasingly the focus of interest worldwide. This book describes the fundamentals of design analysis, fabrication and construction, in which the author refers to 250 built examples to illustrate all aspects. International or national codes and technical regulations are referred to only as examples, such as bridges that were designed to German DIN, Eurocode, AASHTO, British Standards. The chapters on cables and erection are a major focus of this work as they represent the most important difference from other types of bridges. The examples were chosen from the bridges in which the author was personally involved, or where the consulting engineers, Leonhardt, Andrä and Partners (LAP), participated significantly. Other bridges are included for their special structural characteristics or their record span lengths. The most important design engineers are also presented. Note: The lecture videos which are attached to the print book on DVD are not part of the e-book.

Buffeting response of cable-stayed bridges at their erection stage under yawed wind has attracted engineering attention through wind tunnel observations and studies. Cable-stayed bridges are particularly vulnerable to dynamic wind effects during their construction stages due to the lack of overall structural stiffness. The most critical stage is just before the bridge main span is closed. At this time, a cable-stayed bridge resembles a long cantilever structure supported by cables, and particularly, the fundamental frequency horizontal modes of oscillation may be very low. During this stage, the cable-stayed ridge is more responsive to wind action both in lateral and vertical bending. For this reason, the prediction of wind-induced bridge response becomes more important when directional variation of wind is considered. However, only a few theoretical approaches have been proposed, applicable only in extremely simplified cases. This thesis deals with the prediction of buffeting response of cable-stayed bridges under yawed winds using the modified buffeting analysis. The modified buffeting analysis was originally developed by Kimura (1991) and was restricted to vertical bending response. The comparison with experimental data was also conducted for extremely simplified flat plate models. In this thesis, the modified buffeting approach is not only applied to actual cable-stayed bridge models but also the calculation of the lateral bending oscillation has been attempted. Further, the calculated results are compared with the experimental data obtained from the wind tunnel tests of the aeroelastic cable-stayed bridge models; the Normandy Bridge and the Kao Ping Hsi Bridge.

An examination of all aspects of the design of cable stayed bridges. Starting with a brief history, it addresses general design criteria and technology, as well as static and dynamic analysis. The illustrations provide examples of structures already built and document their critical parameters.

This report discusses loadings and materials used in thedesign of cable-stayed bridges.