Numerical simulation of the behaviour of high performance fibre reinforced mortar with conventional reinforcing bars in concentric tension

Title: Numerical simulation of the behaviour of high performance fibre reinforced mortar with conventional reinforcing bars in concentric tension
Author(s): Ryosuke Shionaga, Withit Pansuk, Yasuhiko Sato, Joost C. Walraven
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 783 - 790
Total Pages: 8
Nb references: 11
Language: English

Abstract: This paper presents the results of numerical simulations of the behaviour of tensile members which consist of a high performance fibre reinforced mortar (HPFRM) and a conventional reinforcing bar. The HPFRM has a compressive strength of about 130 N/mm2 and a high tensile ductility as a result of the addition of short steel fibres. Aiming at assessing the tensile stiffening response of the HPFRM, a rigid body spring model (RBSM) on the basis of continuum mechanics has been applied. Tension softening curves of the HPFRM with various fibre contents were obtained from direct tensile tests and implemented into a tensile constitutive law in the RBSM simulation. The analytical results obtained with the RBSM show good agreement with the experimental results, both with regard to member elongation and crack propagation under concentric tensile loading. Moreover an influence of fibre content and fibre orientation on the tensile stiffening response and the cracking behaviour of the reinforced HPFRM members were found analytically.

Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00