Through case study of Urbino,the project of la Rampa elicoidale,the article describes the experience of Giancarlo de Carlo in his reclaiming work for the remarkable historical Renaissance city,presents his reading of the tradition and the historical transformation of the site and the creative interpretation in the contemporary urban fabric.

Flow in rotating helical pipe;

In this article, authors introduce some aspects of the spiral ramp formwork of an underground garage and its support system such as design, installation and ramp construction quality control.