MS 1-3: Life-Cycle and Reliability Assessment of Anchorage Systems in Concrete, Masonry and Steel Constructions

Ronald Mihala, Hilti Corporation, Schaan, Liechtenstein

Jan Hofmann, Universität Stuttgart, Stuttgart, Germany

Ronald Mihala    Jan Hofmann    


In construction industry anchors have been used since the early 1900`s to secure building components. With the evolution of drilling technology from chisels to rotary-percussion tools the field of anchoring technology becomes more and more important for the construction industry.

Fastenings must be designed in such a way that they do their job for which they are intended. In the majority of cases only the short-term performance is well known and considered in the engineering design - the long-term behaviour usually covered by very conservative assumptions. The knowledge about the long-term behaviour of anchorage systems is small and cannot be regulated by prescriptive standards. It is a relatively young discipline, meaning that the state of the art is changing and improving very fast but not standardised for anchors.

The aim of the session is to bring together researchers working in the field of analysis of the long-term behaviour in order to perform finally the reliability assessment of anchorage systems.


Aspects of long-term behavior of power-actuated fastenings made to steel and concrete
H. Beck

Time-to-failure behavior of epoxy based bonded anchor systems
R. Blochwitz, J. Hofmann, R. Cook, T. Davis

Sustained load performance of adhesive anchor systems in concrete
T. Davis, R. Cook, R. Blochwitz, J. Hofmann

Service life design for bonded anchors – A rheological approach
T. Kränkel, D. Lowke, C. Gehlen

Gluing to masonry for efficient and sustainable anchoring
C. Kurz, J. Hofmann

Implementation of the basic requirement "sustainability" on construction works according to the construction products regulation in the field of anchor technology
G. Lange

Durability of temporary anchors in rock
A. Rieder, D. Marini, G. Estrafallaces, A. Strauss

Durability proof of steel metal screws in accordance with European technical approvals
M. Siemers

Serviceability and ultimate limit states for anchorages in concrete – effects of assembly tolerances
P. Spyridis, A. Unterweger, S. Lachinger, K. Bergmeister

The functionality of fasteners with small embedment depth in carbonated concrete
M. Stipetic, J. Hofmann