Handbook of Civil Engineering Calculations

(c) Panel (sidesway) mechanism (d) Composite mechanism

FIGURE 28

Angular

Section displacement Moment W 1

A

B -e MP Mpe

C +20 Mp 2MP 6

D -6 Mp MpB

E

Total 4MP 0

Then 4MpO = 1406; Mp=l85 ft-kips (250.9 kN-m).

3. Repeat the foregoing procedure for failure by sidesway
   Thus, A 2 = 246; WE = 22.2(246) = 532.80.

(a) Frame and design loads (b) Beam mechanism