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Modeling of shear walls using finite shear connector elements based on continuum plasticity
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Structural and Construction Engineering.
Division of Structural Mechanics, Department of Building Sciences, Lund University.
Department of Building Technology, Linnaeus University.
2017 (English)In: Frontiers of Structural and Civil Engineering, ISSN 2095-2430, E-ISSN 2095-2449Article in journal (Refereed) Epub ahead of print
Abstract [en]

Light-frame timber buildings are often stabilized against lateral loads by using diaphragm action of roofs, floors and walls. The mechanical behavior of the sheathing-to-framing joints has a significant impact on the structural performance of shear walls. Most sheathing-to-framing joints show nonlinear load-displacement characteristics with plastic behavior. This paper is focused on the finite element modeling of shear walls. The purpose is to present a new shear connector element based on the theory of continuum plasticity. The incremental load-displacement relationship is derived based on the elastic-plastic stiffness tensor including the elastic stiffness tensor, the plastic modulus, a function representing the yield criterion and a hardening rule, and function representing the plastic potential. The plastic properties are determined from experimental results obtained from testing actual connections. Load-displacement curves for shear walls are calculated using the shear connector model and they are compared with experimental and other computational results. Also, the ultimate horizontal load-carrying capacity is compared to results obtained by an analytical plastic design method. Good agreements are found.

Place, publisher, year, edition, pages
2017.
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-62947DOI: 10.1007/s11709-016-0377-3OAI: oai:DiVA.org:ltu-62947DiVA: diva2:1087562
Available from: 2017-04-07 Created: 2017-04-07 Last updated: 2017-04-07

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Girhammar, Ulf Arne
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