Question

1) Explain, with examples, the difference between equilibrium and compatibility torsion.

Answer 1

Equillibrium torsion and Compatibility torsion are important parameters used in torsional design.

Equillitsium Torsion Compatibility Tossion (i) It is that tossion which is needed to Satisfy the condition of static equilliby -ium in a structure (ii) It is that toosion which comes into effect when the compatibity conditions deformations in a structure arse satisfied. Deformations of structure mathematically related to internal forces in the structure (ii) This tossion occurs due to redistrib. -utun of forces in the structure are (ii) No redistribution of forces is there and heuce there is no reduction in equilli -brium torsion (ii) it is the main component of design tossion for tessional design of structure Hence, it is also known as torsion example- A spandsel beam supporting Canhleves projechou (root/slab) has tossion only (i) H is the smaller secondary compo -neut of design tossion. Hence, it is also known as primary toosion Secondary tosion a Example Two or more parallel Deanus su a roof /foor/ tossion equillitsium slab will develop secondary