Punching strength of flat slabs with and without shear reinforcement

Građevinar

article

Marko Bartolac¹  Domagoj Damjanović¹  Ivan Duvnjak¹ 

[1] University in Zagreb Faculty of Civil Engineering

关键词: flat slabs;    punching;    reinforced concrete;    shear reinforcement;    codes;    experiment;   

DOI  :  10.14256/JCE.1361.2015

学科分类：社会科学、人文和艺术（综合）

来源: Hrvatsko Drustvo Gradevinskih Inzenjera

【 摘 要 】

The punching shear strength is an extremely significant parameter for the design of flat slabs, i.e. the slabs supported directly on columns, without beams between columns. Slab punching design models are presented according to Eurocode 2, ACI Code 318, and fib Model Code 2010. The authors’ own experimental research on the punching shear of slabs with and without shear reinforcement is described, and the results are compared with predictions given in the mentioned design models. It was established that all design models underestimate the experimentally obtained shear strength in the case of slabs without shear reinforcement. As to slabs with shear reinforcement, it was observed that the shear strength determined according to Eurocode 2 is overestimated.

【 授权许可】

CC BY