Effects of web reinforcement discontinuities on the seismic response of structural walls

<p>Field evidence was interpreted to suggest that discontinuities in the longitudinal web reinforcement caused severe damage in structural walls during strong ground motion. To test this hypothesis, six small-scale reinforced concrete structural walls were tested under lateral displacement reversals. Test variables included the presence of web longitudinal reinforcement discontinuities and number of loading cycles. The test results indicated that unit tensile strains in longitudinal reinforcing bars in boundary elements were approximately 50% higher in structural walls with web longitudinal reinforcement cutoffs relative to walls without reinforcement cutoffs. Higher unit tensile strains caused an increase in permanent strain accumulation, increasing the likelihood of bar buckling. Additional loading cycles after yielding also accelerated permanent strain accumulation. A method is proposed for estimating the drift capacity of slender structural walls with and without reinforcement discontinuities.</p>

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Civil Engineering

Year

2014

Author dc:creator

• Wang, Ying

Contributors dc:contributor

• Santiago Pujol
• Mete A. Sozen
• Ayhan Irfanoglu
• Robert L. Nowack

• Civil Engineering

Repository record dc:identifier

https://docs.lib.purdue.edu/open_access_dissertations/387

OAI identifier oai:identifier

oai:docs.lib.purdue.edu:open_access_dissertations-1565