As of the 2017.c version of CYPECAD, before launching the analysis, a section of the series used to define the steel or timber joist floor slabs can be assigned to the panel. This way, when the first analysis of the structure is launched, the stiffness of the section used in the analysis is that of the assigned section and not the stiffness of the smallest section of the series.
To do so, the option: “Assign joists (steel and timber)” has been implemented (“Beam definition” tab > “Slabs” menu).
It is also possible to assign the section when a floor slab is introduced or edited. To do so the option: “Initial section”, has been implemented in the new and editing joist floor slabs menus for steel and timber joists.
Once the project has been analysed, the section that is obtained in the design process will be the one assigned to the floor slab and therefore, its stiffness will be the one contemplated if a new analysis of the structure is launched.
Users must bear in mind that when the structure has been analysed, and as long as no modifications are carried out which eliminate the design results, the “Assign joists (steel and timber)” option will not be active in the “Slabs” menu in the “Column definition” tab. In this case, joists can be assigned in the “Results” tab using the “Assign” option in the “Joists” menu, where users can also check the results if the section of the joist is changed.
