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**Harvard**

Broo, H., Plos, M., Lundgren, K. och Engström, B. (2007) *Simulation of shear-type cracking and failure with non-linear finite element method*.

** BibTeX **

@article{

Broo2007,

author={Broo, Helén and Plos, Mario and Lundgren, Karin and Engström, Björn},

title={Simulation of shear-type cracking and failure with non-linear finite element method},

journal={Magazine of Concrete Research},

issn={0024-9831},

volume={59},

issue={9},

pages={673-687},

abstract={Today, the non-linear finite element method is commonly used by practising engineers. Simulating the shear behaviour and shear failure of reinforced concrete structures, using three-dimensional non-linear finite element methods, has shown higher load-carrying capacity due to favourable load distribution, compared to conventional analyses. However, the modelling method for reinforced and prestressed concrete members subjected to shear and torsion has not been generally verified. Therefore, the method needs to be further investigated and confirmed to be practically reliable. The aim of this project is to develop, improve and verify a method to simulate the shear response of reinforced and prestressed concrete members. The method should be possible to use for large structures, for example box-girder bridges, subjected to various load actions. Experiments with panels loaded in shear and beams loaded in bending, shear and torsion are simulated by using non-linear FE analysis. The results showed that four-node curved shell elements with embedded reinforcement could simulate the shear response. It is well known that the shear sliding capacity is larger than what can be explained by the reinforcement contribution determined from a truss model. This increase is due to dowel action and aggregate interlock, and has been accounted for in the past by modifying the concrete tension response in models, e.g. according to the modified compression field theory. Results from the analyses show that without any modification, the capacity was underestimated and the average strains, i.e. the crack widths, were overestimated. On the other hand, if the concrete contribution to the shear capacity was considered with the expression from MCFT, the capacity was in many cases overestimated and the average strains underestimated.},

year={2007},

keywords={reinforced concrete, prestressed concrete, shear and torsion, shear response, shear failure, shear capacity, non-linear finite element analysis},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 54291

A1 Broo, Helén

A1 Plos, Mario

A1 Lundgren, Karin

A1 Engström, Björn

T1 Simulation of shear-type cracking and failure with non-linear finite element method

YR 2007

JF Magazine of Concrete Research

SN 0024-9831

VO 59

IS 9

SP 673

OP 687

AB Today, the non-linear finite element method is commonly used by practising engineers. Simulating the shear behaviour and shear failure of reinforced concrete structures, using three-dimensional non-linear finite element methods, has shown higher load-carrying capacity due to favourable load distribution, compared to conventional analyses. However, the modelling method for reinforced and prestressed concrete members subjected to shear and torsion has not been generally verified. Therefore, the method needs to be further investigated and confirmed to be practically reliable. The aim of this project is to develop, improve and verify a method to simulate the shear response of reinforced and prestressed concrete members. The method should be possible to use for large structures, for example box-girder bridges, subjected to various load actions. Experiments with panels loaded in shear and beams loaded in bending, shear and torsion are simulated by using non-linear FE analysis. The results showed that four-node curved shell elements with embedded reinforcement could simulate the shear response. It is well known that the shear sliding capacity is larger than what can be explained by the reinforcement contribution determined from a truss model. This increase is due to dowel action and aggregate interlock, and has been accounted for in the past by modifying the concrete tension response in models, e.g. according to the modified compression field theory. Results from the analyses show that without any modification, the capacity was underestimated and the average strains, i.e. the crack widths, were overestimated. On the other hand, if the concrete contribution to the shear capacity was considered with the expression from MCFT, the capacity was in many cases overestimated and the average strains underestimated.

LA eng

DO 10.1680/macr.2007.59.9.673

LK http://publications.lib.chalmers.se/records/fulltext/54291/local_54291.pdf

OL 30