What is a wall post?
A wall post is a main vertical or horizontal structure similar to column or beam but with different function. They are used to connect walls to columns and beams and slabs and to secure them from overturning.
Vertical wall post is used when wall span is large and it is fixed to floor beam/slab to roof beam/slab. According to fourth review of national building code 2800 page 103, maximum length of non-load bearing walls is 40 times thickness of wall/partition or 6 m whichever is less and maximum permissible wall height of non-loading wall or partition is 3.5 m.
If the wall falls within these parameters, installation of wall posts is not required. Ends of partitions should not be free. Free end of partitions should be connected to another partition or wall or structural elements or wall post. If length of partition is less than 1.5 m, one end can be free.
Minimum ration of thickness to non-load bearing wall should not be less than 1/30.
Wall posts can be steel of reinforced concrete. Steel wall post are normally of angled profiles, U profiles or boxed profiles. Both ends of these wall posts must properly be secured to floor and roof.
Purpose of wall post in building is to transfer wind and seismic load to structural frames and to secure the wall from collapsing.
Ready Made Wall Posts:
According to National Seismic Code for parameter and internal partition infill walls, AAC blocks with 10, 15 and 20 Cm thick wall are used. Wall posts have base plates with holes for bolting to floor slabs and sliding holes for top end of wall post being fixed to roof slab, preventing roof/beam vertical load imposed on wall posts.
Wall post connection is shown in the picture below: