tech

• t shaped profile resist compression better than a flat profile
• h profile resists compression and does not bend easily and is uspd for coloums
• I profiles have a broad base that provides stability, it is used for railway tracks
• U profile is lighter than H profile and is used for horizintal support
• tube profile is the best profile for resisting torsion
• L profile have higher bending strength
• stationary force is non-moving
• dynamic force is moving
• a load force over the whole structure that supports it is known as even load
• a load mainly exerting a force on one part of the structure that supports it is known as an uneven load
• basic forces are: tension, torsion, bending, compression, shear