Viscoelastic Material as Energy Dissipater Viscoelastic Damper for Building Structures to Mitigate the Seismic Vibration
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Department of Civil Engineering, Southeast University, Nanjing, China
Online publication date: 2019-10-30
Publication date: 2019-06-01
Civil and Environmental Engineering Reports 2019;29(2):41–49
The supplemental energy dissipation system is a practical approach to attenuate the structural response under extreme loading. Viscoelastic damping used to reinforce the structure against the seismic vibration, Viscoelastic material (VEM) most commonly used in viscoelastic dampers (VEDs). In this paper, dynamic mechanical analysis (DMA) approach is used to investigate the performance index of VEM. It is demonstrated that the performance index, such as storage modulus, loss modulus, and loss factor decrease noticeably as the temperature increases, which reflects the low stiffness at high temperature. Excitation frequency also influenced the performance index, and the reaction has correspondence to temperature. As the temperature increases, the VEM dynamic properties decreases, which represents the rubbery region, and it is found that higher to low-temperature dynamic properties increases, which the glassy region is. DMA is a particularly flexible approach, and it characterizes the properties of VEM simultaneously at various conditions.
Ghaemmaghami, AR and Kwon, OS 2018. Nonlinear modeling of MDOF structures equipped with viscoelastic dampers with strain, temperature and frequency-dependent properties. Engineering Structures 168, 903-914.
Lee, KS, Fan, C-P, Sause, R and Ricles, J 2005. Simplified design procedure for frame buildings with viscoelastic or elastomeric structural dampers. Earthquake Engineering & Structural Dynamics 34, 1271-1284.
Mazza, F and Vulcano, A 2011. Control of the earthquake and wind dynamic response of steel-framed buildings by using additional braces and/or viscoelastic dampers. Earthquake Engineering & Structural Dynamics 40, 155-174.
Kawak, BJ, Cabon, BH and Aglietti, GS 2017. Innovative viscoelastic material selection strategy based on dma and mini-shaker tests for spacecraft applications. Acta Astronautica 131, 18-27.
Martinez-Agirre, M, Illescas, S and Elejabarrieta, MJ 2014. Characterisation and modelling of prestrained viscoelastic films. International Journal of Adhesion and Adhesives 50, 183-190.
De Lima, AMG, Rade, DA, Lacerda, HB and Araújo, CA 2015. An investigation of the self-heating phenomenon in viscoelastic materials subjected to cyclic loadings accounting for prestress. Mechanical Systems and Signal Processing 58-59, 115-127.
Borg, T and Pääkkönen, EJ 2010. Linear viscoelastic models: Part IV. From molecular dynamics to temperature and viscoelastic relations using control theory. Journal of Non-Newtonian Fluid Mechanics 165, 24-31.
Chang, KC, Soong, TT, Oh, S-T and Lai, ML 1995. Seismic Behavior of Steel Frame with Added Viscoelastic Dampers. Journal of Structural Engineering 121, 1418-1426.
Bergman, DM and Hanson, RD 1993. Viscoelastic Mechanical Damping Devices Tested at Real Earthquake Displacements. Earthquake Spectra 9, 389-417.
Mehrabi, MH, Suhatril, M, Ibrahim, Z, Ghodsi, SS and Khatibi, H 2017. Modeling of a viscoelastic damper and its application in structural control. PLOS ONE 12, e0176480.
Tsai, CS and Lee, HH 1993. Applications of Viscoelastic Dampers to High Rise Buildings. Journal of Structural Engineering 119, 1222-1233.