Title:
How to Treat Shear in Structural Concrete
Author(s):
Peter Marti
Publication:
Structural Journal
Volume:
96
Issue:
3
Appears on pages(s):
408-414
Keywords:
concretes; detailing; shear strength; structural analysis
DOI:
10.14359/675
Date:
5/1/1999
Abstract:
Recent developments of strut-and-tie model, compression field, and limit analysis approaches are reviewed. It is shown how the different methods supplement each other, permitting a consistent dimensioning and detailing of new, and a rational evaluation of existing, structural concrete members. It is demonstrated that shear forces provide the key to understanding the flow of the internal forces both in beam and frame and in plate and shell structures. While it is emphasized that strut-and-tie models and stress field considerations should be part of the tool box of every designer, it is pointed out that deformation and failure mechanism considerations are particularly useful for the evaluation of existing structures. A brief presentation of a newly developed tension chord model concludes the paper. Based on this model, a variety of related subjects (bond, minimum reinforcement, and deformation capacity) can be treated in a unified manner.