(1) External Forces
These are external loads which a frame has to withstand. Self-weight, dead, live, wind or moving loads are called external forces.
While designing the shape and sizes of different members of a framed structure these loads are calculated by taking into account the type of material used for the frames and the weight of roof covering materials. These loads are systematically allowed to act on the frame. But for calculation purposes it is assumed that the joints share these loads and loads act at joints without causing any bending stresses in the frame's members. Due to these loads members are subjected to internal resistance put up by these members.
These are external loads which a frame has to withstand. Self-weight, dead, live, wind or moving loads are called external forces.
While designing the shape and sizes of different members of a framed structure these loads are calculated by taking into account the type of material used for the frames and the weight of roof covering materials. These loads are systematically allowed to act on the frame. But for calculation purposes it is assumed that the joints share these loads and loads act at joints without causing any bending stresses in the frame's members. Due to these loads members are subjected to internal resistance put up by these members.
(2) Internal Forces
The internal resistance which develops in the members to withstand the eflect of external loads are known as internal forces. These are of two types i.e. Tension and Compression
Any member subjected to tension is called a tie and which is subjected to compression is known as strut.
The internal resistance which develops in the members to withstand the eflect of external loads are known as internal forces. These are of two types i.e. Tension and Compression
Any member subjected to tension is called a tie and which is subjected to compression is known as strut.
No comments:
Post a Comment