Chance Technical Design Manual

STEM WALL HEIGHT

d

12” FOOTING

3 - #5 REBARS (GR 60)

FIGURE 4-9

d

BEAM HEIGHT

LOAD DETERMINATION

2 - #5 REBARS (GR 60)

FIGURE 4-10

PRELIMINARY DESIGN GUIDELINES FOR REINFORCED CONCRETE GRADE BEAMS

Building loads are most commonly transferred to helical piles through concrete grade beams. Figures 4-11 through 4-15 and Tables 4-10 through 4-14 provide preliminary design guidance for grade beam sizing and steel reinforcement configuration. These tables include the total line load for live loads on the beam and the dead load of the beam and structure. The 4” void under

the grade beam is for illustration purposes only. The thickness of the void form will depend on site-specific conditions. The final design should be conducted and approved by a Registered Pro fessional Engineer.

It is recommended that a Registered Professional Engineer conduct the design.

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