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Analytical approach of anchor rod stiffness and steel base plate calculation under tension

Tsavdaridis, K. D. ORCID: 0000-0001-8349-3979, Shaheen, M. A., Baniotopoulos, C. & Salem, E. (2016). Analytical approach of anchor rod stiffness and steel base plate calculation under tension. Structures, 5, pp. 207-218. doi: 10.1016/j.istruc.2015.11.001

Abstract

The analysis of column base plate connections under biaxial moment or when large numbers of anchor rods are utilised is complicated. Such complex connections are regularly found in engineering practice, in spite of proposed, up-to-date finite element modelling techniques and analytical formulations being unsuitable. The lack of suitability arises from their development for non-practical column base plate idealised configurations. In the present paper, the results of a finite element study of single-headed anchors under tension are discussed, leading to the derivation of a simple equation that describes the stiffness of the headed anchor rod embedded in concrete. Furthermore, this paper suggests a simple and suitable approach to analyse base plate connections independent of loading scenarios, the number of anchor rods and their arrangement, taking into account the actual rigidity of the connection. In this study, a three-dimensional, nonlinear finite element model is developed through the use of the general-purpose finite element software package ABAQUS. The respective numerical results were verified against experimental ones.

Publication Type: Article
Additional Information: © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Publisher Keywords: Base plate, Monotonic tension load, Anchor rod, Holding down bolt, Parametric study, Rod stiffness
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Civil Engineering
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