Non-linear finite element analyses of punching shear failure of column footings
2002 (English)In: Cement & Concrete Composites, ISSN 0958-9465, E-ISSN 1873-393X, Vol. 24, no 6, 491-496 p.Article in journal (Refereed) Published
Current design methods and code formulas for the assessment of the punching shear strength are normally based on tests on slabs with relatively high slenderness, i.e., with high shear-span to depth ratios. Column footings normally have low shear-span to depth ratios. Previous punching tests on column footings indicate that the failure mechanism for punching of slabs with low shear-span to depth ratios differs from that of slabs with high shear-span to depth ratios. In this investigation, punching tests on two circular column footings of reinforced concrete were simulated numerically. The results show how the failure mechanism differs from that of more slender slabs. A parametric study also confirms that the punching shear strength of the analysed slabs strongly depends on the compressive strength of concrete.
Place, publisher, year, edition, pages
2002. Vol. 24, no 6, 491-496 p.
Punching; RC slabs; Column footings; FE-analyses
IdentifiersURN: urn:nbn:se:kth:diva-59015OAI: oai:DiVA.org:kth-59015DiVA: diva2:474647
NR 201408052012-01-092012-01-092012-01-23Bibliographically approved