Longitudinal Steel Stresses in Beams Due to Shear and Torsion in AASHTO-LRFD Specifications: Discussion.
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Bibliographic record
Abstract
Accounting for the effects of shear and torsion (which cause diagonal cracks in concrete beams) on the reinforcing steel in concrete is necessary to ensure a safe design and to avoid the possibility of brittle failures. The current AASHTO-LRFD specifications and the Canadian A23.3 CSA building code use an alternative shear and torsion design method that requires a check on the adequacy of the longitudinal steel to resist the stresses not only from bending and axial loads, but also from shear and torsion. This discussion article comments on a recent study (Rahal, 2005) that evaluated this general method equation for the calculation of the stresses in the longitudinal steel in members with adequate transverse reinforcement. Longitudinal steel strain readings from tests were compared with the values calculated based on the general method equation for longitudinal force. Rahal concluded that the AASHTO's equation provides accurate estimates of the longitudinal force in nonprestressed beams. In their discussion Solanki and Khoe question why Rahal's equation does not address the compression and transverse reinforcement, but only relates to tensile reinforcement. The discussers provide some equations for the adequacy of the longitudinal and transverse reinforcement.
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Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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