Example 52 Statically Determinate Rigid Jointed Frame

A pitched-roof portal frame is pinned at supports A and H and members CD and DEF are pinned at the ridge as shown in Figure 5.6. For the loading indicated:

i) determine the support reactions and ii) sketch the axial load, shear force and bending moment diagrams.

Example Determinate Structure

Figure 5.6

Apply the three equations of static equilibrium to the force system in addition to the £

moments at the pin=0:

VA 5.0 - (12.0 x 4,0) - 25.0 - 35.0 -20,0 + VU = 0 E^^"

Equation

+4 0

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