Classification of Wall
Generally classified based on the function as load bearing & non load bearing walls.Eg.partition wall.They taansfer self weight only & they are provided to create barriers that can be visual,thermal on acoustic.
Provides 3 dimentional stiffness .The load bearing walls which are referred to as supported walls do not posses foundation o f their own but are either carried by beams or slabs or directly attached to load bearing walls. The supported walls can form on integral part of structure or remain as non structural depending on stiffness. Depending on the orientation of the main beams or load bearing walls relative to long axis of the building. Prefabricated wall system are classified as,
Long wall system
Cross wall system
Ring or two way system
Long wall system:
The main beams are load bearing walls are placed parallel to the long axis of building. It is applied to the building with large prefabricates and is similar to traditional brick work technique . The longitudinal external walls which carry the floor loads must posses not only thermal properties but also sufficient load carrying capacity .
The long wall system construction is typical with large blocked structure and special pier blocks between the windows which carry loads from lintel and the walls above. The horizontal still blocks are not loaded . In some designs space between the piers is filled by prefabricated unit consisting of RC window frame complete with window.
The internal wall blocks are normally of full storey height subject to limitations imposed by lifting equipments available. Both internal and external walls are made of some materiel.
Cross wall system :
Load bearing walls and beams are placed at right angles to the longitudinal axis of the building . In this system the floor units are provided with two way structural units which distributes the to the cross walls and this system is more prominent. The internal walls are made of ordinary concrete for load bearing walls and the external walls and the external walls are made of light weight concrete to reduce the weight of the structure.
Generally the room size is nearly square in this
system. Ring system :
Load bearing walls and beams are placed in both ways longitudinally and transversely. In the building with the ring system of support floor are normally supported on all four edges and span in two directions. In skeleton construction these floors are placed directly on columns.
In this system, the floor slabs are designed to span in both direction and are loaded on to the supporting walls. For large load panels cross beams are hidden within the thickness of the panel.
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