Interior Walls

1. Eccentricity is caused by unequal span of roof or floor. In such cases a net bending moment is induced (Fig. 17.14). This bending moment is due to an eccentric load.
2. The load is considered axial if the difference between the two loads is within 15%. Otherwise, each floor load is assumed to act at a distance equal to one-sixth the thickness of the wall and then the overall eccentricity is computed.
3. In general, eccentricity of loading increases with the increase in the fixity of slabs/beams at the supports.

Figure 17.14 Eccentricity due to unequal span in interior wall