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《结构与土木工程前沿(英文)》 >> 2017年 第11卷 第2期 doi: 10.1007/s11709-016-0377-3

Modeling of shear walls using finite shear connector elements based on continuum plasticity

. Division of Wood Science and Engineering, Luleå University of Technology, Skellefteå 93187, Sweden.. Division of Structural Mechanics, Department of Building Sciences, Lund University, Lund 22100, Sweden.. Department of Building Technology, Linnæus University, Växjö 35195, Sweden

录用日期 : 2017-04-07 发布日期 :2017-05-19

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摘要

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.

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