Strain Factors and Moment Factors for Singly and Doubly Reinforced Beams Under Repeated l o a d i n g

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Title: Strain Factors and Moment Factors for Singly and Doubly Reinforced Beams Under Repeated l o a d i n g

Author(s): V. S. Thattey

Publication: Journal Proceedings

Volume: 72

Issue: 12

Appears on pages(s): 727-730

Keywords: beams (supports); bending; compression; deflec- tion; loads (forces); moments; reinforced concrete; strains; stress-strain relationships; tension.

Date: 12/1/1975

Abstract:
Reports on an investigation of the response of simply supported singly and doubly reinforced beams to arbitrary. repeated loading. A numerical method using load deflection relationship for computing strain factors at various stages of loading is proposed. Moment factor equations are devel-oped involving the parameters like modular ratio, per-centage reinforcement, ratio of compression steel area to tension steel area, strain factor, and stress ratio. The theo-retical and experimental comparison indicates that the theoretical equations involving strain factors may give a rough indication of the behavior of reinforced concrete beams under repeated loading. [Authors]