Analytical and Numerical Study of Lead Shear Damper

سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 347

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شناسه ملی سند علمی:

NCNMS07_091

تاریخ نمایه سازی: 31 تیر 1398

چکیده مقاله:

In this paper, simple and robust constitutive relationship for calculating mechanical properties of lead shear damper (LSD) were developed. LSD is a new type of low cost-low stiffness metallic yielding damper composed of two coaxial steel pipes where their interfacial gap is filled with pure lead. This device dissipates energy through shear plastic deformation of lead section due to the relative axial displacement of steel pipes and can be modeled with tri-linear springs; essential structural variables for this modeling can be found by the developed constitutive equations. The tri-linear spring element can easily be implemented in any commercial structural analysis software. Engineers can easily design any structure equipped with LSDs using the developed constitutive equations in this study. A nonlinear finite element model (FEM) was used to verify the developed constitutive equations.

نویسندگان

Morteza Eskandari

Department of Civil Engineering, Sharif University of Technology, Tehran, Iran

Hossein Homaei

Department of Civil Engineering, Sharif University of Technology, Tehran, Iran

Jamal Arghavani

Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran