Neue Tendenzen im Erdbebeningenieurwesen

Bachmann, Hugo

doi:10.1002/best.200490043

Cited by 7 publications

(1 citation statement)

References 11 publications

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“…Other noteworthy research on estimating the flexural stiffness of walls includes the study by Bachmann [25], where he recommended using:…”

Section: Flexural Stiffnessmentioning

confidence: 99%

Shear and Flexural Stiffnesses of Reinforced Concrete Shear Walls Subjected to Cyclic Loading

Tang¹,

Su²

2014

TOBCTJ

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Seismic analyses of concrete structures under maximum-considered earthquakes require the use of reduced stiffness accounting for cracks and degraded materials. Structural walls, different to other flexural dominated components, are sensitive to both shear and flexural stiffness degradations. Adoption of the gross shear stiffness for walls in seismic analysis prevails particularly for the design codes in the US. Yet available experimental results indicate that this could overstate the shear stiffness by more than double, which would hamper the actual predictions of building periods and shear load distributions among columns and walls. In addition, the deformation capacity could be drastically understated if the stipulated constant ductility capacity is adopted. This paper reviews the available simplified shear and flexural models, which stem from classical mechanics, empirical formulations and/or parametric studies, suitable for structural walls at the state-of-the-art. Reviews on the recommended flexural and shear stiffnesses by prominent design codes such as ACI318-11, Eurocode 8 and CSA are included. A database comprised of walls subjected to reverse-cyclic loads is formed to evaluate the performance of each model. It is found that there exist classical models that could outweigh overconservative codified values with comparable simplicity for practical uses.

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“…Other noteworthy research on estimating the flexural stiffness of walls includes the study by Bachmann [25], where he recommended using:…”

Section: Flexural Stiffnessmentioning

confidence: 99%