ABSTRACT

Uz from a Single Formula for Asymmetrical Trapezoidal Loading A single formula can be developed for trapezoidal loading for computing (J'z at a point P (Fig. 6.16) by applying Eq. (6.26). The origin of coordinates is as shown in the figure. The final equation may be expressed as

(6.31)

where at, ~, and a3 are the angles subtended at the point P in the supporting medium by the loading and R = a tla2• When R = 1, the stresses are due to that of a symmetrical trapezoidal loading.