Datenbank zum Durchstanzen stahlfaserverstärkter Flachdecken ohne Durchstanzbewehrung: Bewertung von Bemessungsansätzen nach DAfStb‐Richtlinie und fib Model Code 2010.

Database for punching shear resistance of steel fibre reinforced concrete flat slabs without shear reinforcement – Verification of design approaches according to DAfStb guideline and Model Code 2010 The punching shear design of steel fibre‐reinforced flat slabs is currently carried out in Germany based on the DAfStb Guideline "Steel fibre reinforced concrete". The addition of steel fibres to the concrete allows an effective transfer of tensile forces across the crack and limits the progressive crack opening, which proves to be particularly favourable for the punching shear strength. Numerous investigations since the mid‐1970s have confirmed this and have enabled the derivation of empirical and partly mechanically based approaches for the calculation of the steel fibre contribution in the punching shear capacity of steel fibre reinforced flat slabs without punching shear reinforcement. For the evaluation and further development of these approaches, a critically reviewed database of punching shear tests on steel fibre reinforced flat slabs without punching shear reinforcement was created. Considering the practical construction requirements regarding the slab thickness, the degree of longitudinal reinforcement as well as the concrete compressive strength and the post‐cracking tensile strength, about 116 tests could be included in the punching shear database "Steel fibre reinforced concrete". This paper presents the database and discusses its evaluation about the prediction accuracy and the safety level of the design approaches according to the DAfStb guideline "Steel fibre reinforced concrete" as well as according to the Model Code 2010. [ABSTRACT FROM AUTHOR]