EXAMPLE 2. FORMAL STUDY METAL CONSTRUCTION

EXAMPLE 2: 'DESIGN OF A METAL STRUCTURE' 12 Going down and following the data of the study, determine the distances between the main panels = 680 cm. OBSERVATION: Here it is worth noting that you can choose different distances between the frames (Lz1, Lz2 etc.). As the main cross-sections of the frames you choose : Pillars S1-S2 : IPE450 with 90 o angle Beams S3-S4 : IPE360 with 90 o angle Header beams : HEA180 with 90 o angle OBSERVATIONS: To modify a predefined cross-section, left-click on it and the corresponding dialog box opens. Select the desired cross-section and its angle. In addition, it is necessary (for dimensioning, see below) to select from the list at the bottom of the window, the layer to which it will belong. In addition to the Layers predefined by the program, the user has the ability to create his own layers and transfer to them the elements of his choice. It is worth mentioning that the program has the ability to automatically calculate the angle that the frames should have by calculating the angle of inclination of the frames. So even though we put an angle of 90 o on the tetrahedrons the program calculates their exact angle and places them in the 3d correctly oriented. This is only valid for standard constructions. In every other case the members are inserted with the orientation you give. Then you select the number, the positions and the cross-sections of the pegs and pins . You can enter the maximum distance between consecutive purlins or thimbles and the program will automatically calculate how many purlins or thimbles fit in the beam or post. The offset indicates the distance that the first purlin or cotter pin will be from the header. In this particular example: - select 30 cm as offset and type