EFFECTIVE LENGTH OF WALLS

While deciding the length of walls, the following end support conditions are considered:

1. Free end of the wall
2. Continuity of the wall
3. Support from cross walls or piers or buttresses
4. Openings

Various combinations of the above conditions and the effective length of a wall are presented in Table 17.3 (Fig. 17.10).

Table 17.3 Effective length of walls

Source: IS: 1905, 1987.

Note:

(i) H = actual height of wall between centre of cross wall/pier.

L = length of wall from or between centre of cross wall/pier.

(ii) If there is an opening taller than 0.75 H in a wall, then the ends of the wall at the opening are considered free.

Figure 17.10 Effective length of wall (Source: IS: 1905, 1987)

Figure 17.10 (Continued)