Abstract
In order to contribute to the establishment of the “anti-catastrophe” design concept of structures, the design standards for railway and port structures are reviewed, with special reference to their recent trends. Design examples are presented in which “anti-catastrophe” design concept is considered implicitly or explicitly both before and after the 2011 Great East Japan Earthquake. For the railway structures, devices have been developed for the “anti-catastrophe” design. For the port structures, efforts are being made to improve the performance of breakwaters after they are affected by extreme tsunamis. In the “anticatastrophe” design, it is important to understand the performance of a structure or a structure-environment system for extreme external forces.