Development of analysis tools for structures protected by the damped cable system. Report to European Commission No. EVG1-CT-1999-00013 SPIDER/4.1/UDINE/SSO/02/VF-C, Deliverable No. 8, Research and Technological Development Project SPIDER, January 2002

This report sums up the activities carried out by Udine University within Task 4.1 of Work-package nr. 4. These activities concerned the improvement of the “j2d” software for the two-dimensional analysis of structures equipped with the damped cable system (DCS), and were particularly aimed at: • providing greater computational capabilities compared to the first version of the code (among which: the incorporation of the vertical force components induced by cables; direct combinations of the static and dynamic output data; a substantial optimisation of the solving routines, so as to improve the numerical stability of the generated algorithms, and to remarkably reduce the elaboration times; etc); • adding a newly conceived graphical user interface, to facilitate the use of the program both in input and post-processing phases. Although many of these improvements have been already included, some important aspects are currently in progress. The general lines of the work to be still carried out are anyway completely planned, and presented in this report as well.