7. LOADS

CHAPTER 7 "CARGOES" 72 4.4.2 Semi-automatic Process - Without using the "Standard Constructions" A part has been added on the right concerning the manual definition of the three-point surface. The surface definition is always done on the specific wall that is active in the window OBSERVATION: It is advisable before starting the process to reset everything that exists by pressing the "Reset Members" button. The points are shown graphically with the following peculiarity: ▪ The first two points define the direction in which the automatic calculation of the influence surfaces is performed for the elements that are parallel to this direction. Note also that the distribution is done for all linear members belonging to this plane and as we said it is parallel to the first line. ▪ After defining the 3 points, we press the "Distribution" button and the program automatically executes the distribution and displays it. The same definition is made for the other walls. As far as roofs are concerned, the definition can be done sequentially, i.e. after I first choose the roof to define it is obligatory to select the individual levels, i.e. in a two-pitch roof to select successively the two levels of the slopes, because as we said the logic is to define with three points a level for which and for those members belonging to it the calculation of the influence surfaces will be done automatically.