EXAMPLE 2. FORMAL STUDY METAL CONSTRUCTION

EXAMPLE 2: 'DESIGN OF A METAL STRUCTURE' 66 Now with the use of the consolidation by direction, the process of the rates will not be needed, but the consolidation will be done, in most cases automatically. It should also be noted that with the consolidation process the bending length is correctly calculated and in the printing of the results a consolidated member is now printed once with an indication of the individual members it includes. Basic concepts of buckling about strong and weak axes and what the corresponding buckling lengths ly and lz mean can be found in chap. Sizing of the user manual. NOTE As a general rule, we could say that, as a rule, we take unified length Ly in the direction where the local y- y axis is parallel to the elements supporting - securing the member, while in the other direction, if there are no elements, the individual lengths are taken as Lz . We select the consolidation command group and select the Automatic command: The logic of the consolidation methodology is that, either automatically or manually, the individual members of an element are consolidated by bending direction. The buckling length taken for calculation purposes is not the actual length of the member, but the unified length from the beginning to the end of the column or beam respectively. In addition, in the presentation of the results, for these consolidated members the worst controls are shown only once and not for each one as was the case until now. Finally, in automatic consolidation, there is the definition of stop levels. Break planes are horizontal or vertical planes that are used as breakpoints in the consolidation of a continuous element. Thus, for vertical elements (Pillars) the stopping levels are horizontal levels which are defined, like the levels, with an altitude. OBSERVATION It is good to work on the 3d mathematical model and have the local axes displayed.