The Open Construction & Building Technology Journal

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Distinct Element Modeling of Masonry-Infilled Steel Frames with Openings

The Open Construction and Building Technology Journal, 2012, 6: 42-49

Amin Mohebkhah, A. A. Tasnimi

Struct. Eng. Dept., Faculty of Civil and Architectural Eng., Malayer University, Malayer, Iran.

Electronic publication date 31/10/2012
[DOI: 10.2174/1874836801206010042]


Numerical analysis of masonry-infilled steel frames (MISFs) is one of the greatest challenges faced by structural engineers. This difficulty results from the presence of joints as the source of discontinuities and nonlinearities as well as the interaction of frame-infill panel. In spite of many studies performed on numerical modeling of solid MISFs, there are few studies on MISFs with openings. A 2D numerical model using the specialized distinct element software UDEC (2004) for the pushover analysis of MISFs with openings is developed. In this model, large displacements and rotations between masonry bricks are taken into account. A comparison between the results of distinct element modeling and the experimental results available in the literature showed a good correlation between them. Furthermore, It was found that the model has the capability to predict lateral load capacity, joint cracking patterns and explore the possible failure modes of MISFs with openings.

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