Bottom chord
The camber of trusses may be specified in this window. Upper part contains few buttons with types of camber, bottom part contains the input fields for the input of camber value and number of bays for any sector of the bottom chord. The total number of bays depends on the value specified in the window "Structure dimensions". The sum of number of bays in all sectors has to be identical to the total number of bays. The software automatically modifies the number of bays in following sector during the input. The truss shape in the main window is updated automatically after clicking on "OK".
Shape of the bottom chord