Redistribution of Moments at Cracking-the Key to Simpler Torsion Design?

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Title: Redistribution of Moments at Cracking-the Key to Simpler Torsion Design?

Author(s): Michael P. Collins and Paul Lampert

Publication: Special Publication

Volume: 35

Issue:

Appears on pages(s): 343-384

Keywords: beams (supports); bending moments; compatibility methods; cracking (fracturing); flexural strength; frames; reinforced concrete; reinforcing steels; stiffness; structural analysis; torsion

Date: 1/1/1973

Abstract:
When a reinforced concrete structure cracks the ratio of torsional to flexural stiffness of its members will drop. The resulting redistribution of torsion and bending moments is the subject of this paper.