LIMIT STATE DESIGN FOR SHEAR TORSION BOND AND ANCHORAGE DESIGN FOR TORSION

1 UNIT III LIMIT STATE DESIGN FOR SHEAR TORSION BOND AND ANCHORAGE DESIGN FOR TORSION INTRODUCTION Many types of loadings produce torsion in reinforced concrete members. The resultant torsion may be classified into two types o Primary or equilibrium torsion o Secondary or compatibility torsion o The first type is that which is required to maintain basic static equilibrium, and the second is the one required to maintain only compatibility condition between members. o In general, one may say that torsion in statically determinate structure is of the equilibrium type and torsion in statically indeterminate structures may be either of the equilibrium or the compatibility type. o In statically indeterminate structures, there are more than one load path along which loads can be distributed and equilibrium maintained, so that the structure can be made safe without taking minor torsional effects into account. Such neglect, at most, will produce some cracking, but not failure. o However, in structures in which a large part of the load is applied unsymmetrical, torsion will have to be considered carefully. o Torsion is a major component if it is of the equilibrium type as also in situations where the torsional stiffness of the members has been taken into account in the structural analysis.

LIMIT STATE DESIGN FOR SHEAR TORSION BOND AND ANCHORAGE DESIGN FOR TORSION

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