...determined. DE, for instance, will occur when the shear in the panel DE is a maximum, because the shear is the sum of all the loads to the left of the section, and, therefore, the greater the shear, the greater the stress in DE. To get the stress in the member...

...any vertical section of a truss, is equal to the effective reaction, Rlt at the left support, minus the sum of all the loads to the left of the section considered. V is thus the resultant of this reaction and these loads. Under these conditions, for a...

...support, I in which S RL represents the sum of all the reactions to the left of the section, and £ WL is the sum of all the loads to the left of the section. The magnitude of V is equal to that of the resultant of all the external forces acting on the left...

...stress in DE, for instance, will occur when the shear in the panel DE is a maximum, because the shear is the sum of all the loads to the left of the section, and, therefore, the greater the shear,the greater the stress in DE. To get the stress in the member...

...single loads are considered separately. Therefore, the moment at C may be expressed as in which P is the sum of all the loads to the left of the section, W is the total load on the span, and 2/i and y2 are the ordinates to the wp Fio. 146. moment influence...