Handbook of Civil Engineering Calculations

WIND-STRESS ANALYSIS BY

SLOPE-DEFLECTION METHOD

Analyze the bent in Fig. 180 by the slope-deflection method. The moment of inertia of
each member is shown in the drawing.

Calculation Procedure:

1. Compute the end rotations caused by the applied moments
   and forces; superpose the rotation caused by the transverse
   displacement
   This method of analysis has not been applied extensively in the past because the arith-
   metic calculations involved become voluminous where the bent contains many joints.
   However, the increasing use of computers in structural design is overcoming this obstacle
   and stimulating a renewed interest in the method.
   Figure 19 is the elastic curve of a member subjected to moments and transverse forces

FIGURE 18. (a) Load on bent; (b) load and reactions.

FIGURE 19. Elastic curve of beam.

Original

position