Advanced Methods of Structural Analysis

320 9 Mixed Method

P

Fig. P9.1

9.2.Design diagrams of the nonsymmetrical frames are presented in Fig.P9.2a–e.
Choose the best method (force, displacement, or mixed) of analysis for each frame.
Explain your decision. Choose primary unknowns, show primary system, write the
canonical equations, and trace way for calculation of coefficients and free terms.

ab

d

c

e

Fig. P9.2

Ans. (a) FM-1; (b) DM-1; (c) FM-3; (d) MM-2; (e) MM-4

9.3.The frame is shown in Fig.P9.3. The bending stiffness for each member is
EI. Construct the bending moment diagram and perform its statical and kinematical
verifications.