Design of Expansion Anchors to Concrete Based on Results of Experimental Verification

Abstract

This paper deals with the problems of the fastening of steel structures to concrete constructions using the post-installed anchoring elements. The paper is oriented to the presentation of some results of the analysis concentrated to the actual behaviour of the particular type of steel mechanical anchors, so called expansion anchors, during the loading process. Within the frame of the experimental verification, using the realized tests results and their elaboration, the load-carrying capacities for the corresponding failure mechanisms were obtained. Within the frame of the theoretical analysis, using the tests results statistic evaluation, the probabilistic models were created, for the subsequent reliability analysis leading to the derivation of the characteristic and design resistances. The problems mentioned above were solved for some selected failure mechanisms and load-carrying capacities of expansion anchors under tensile force namely, for static loading actions and eventually for dynamic loading actions.

Stability Problems of Steel‐concrete Members Composed of High‐strength Materials

“…The general description of the verification and calibration methods in more detail can be found in numerous publications, see e.g. (Kala 2007;Karmazínová et al 2009b).…”

Experimental Verification of Fatigue Resistance of Steel Expansion Anchors to Concrete Loaded by Cyclic Tensile Force with Regard to Particular Failure Modes

“…While other anchorage systems (e.g. bonded or chemical anchors) transfer the load along the entire length of anchor element, the expansion anchors transfer the load around the expanded anchor end only [1], [2], which influences not only the behaviour and the character of strain and failure mechanisms in the loading progress, but also the limit load reached.…”

“…the maximal and minimal levels of loads N max and N min have been determined based on the expected tensile resistance N um calculated for static tensile force for concrete-cone failure mode. Static resistance for concrete-cone failure mode has been determined alternatively -both based on the "Concrete Cone Method", and based on the "CC Method" [1], [2], using equations arising from both "ACI -method", and "ψ -method" [1], [2]. For individual test specimens, the maximal load level has been taken in the range from 30 to 90 % of the mean value of limit static resistance N um , i.e.…”

Geometrically Non-Linear Finite Element Reliability Analysis of Steel Plane Frames With Initial Imperfections / Plieninių Rėmų Su Defektais Geometriškai Netiesinė Baigtinių Elementų Patikimumo Analizė

“…The normative principles and application rules are listed in standard EN 1990standard EN (2002 in Europe, and in ASCE/SEI 7-05 (2005) in the USA. Current approaches in the verification of reliability emanate mainly from probabilistic methods (Kala 2007;Karmazínová et al 2009;Kudzys et al 2010) and advanced optimization approaches (e.g., Atkočiūnas et al 1997;Kala 2008;Gottvald 2010;Leng et al 2011;Atkočiūnas, Venskus 2011;Jankovski, Atkočiūnas 2011). Different risk assessments of construction projects are discussed and compared (e.g., Zavadskas et al 2010).…”