铅黏弹性阻尼墙力学性能分析研究

为提高黏弹性阻尼墙耗能能力,改善其耗能方式,本文提出一种复合型铅黏弹性阻尼墙,介绍了铅黏弹性阻尼墙的构造与原理.对4种不同硬度天然橡胶进行材性试验及本构参数拟合,设计24组不同参数铅黏弹性阻尼墙,采用ABAQUS有限元软件进行模拟分析,研究了不同黏弹性材料、黏弹性层面积、铅芯直径、铅芯布置方式、复合黏弹性层厚度和单层薄钢板与黏弹性层厚度比对阻尼墙滞回性能及力学性能的影响,并给出了设计建议值.

ANALYSIS AND RESEARCH ON MECHANICAL PROPERTIES OF LEAD-VISCOELASTIC COUPLING WALL DAMPER

To improve the energy dissipation capacity of viscoelastic damping walls and improve their energy dissipation methods, this paper proposes a lead-viscoelastic coupling wall damper and introduces the structure and principle of the lead-viscoelastic coupling wall damper. The material properties of 4 different hardness natural rubbers were tested and fitted the constitutive parameter, designing 24 groups of lead-viscoelastic coupling wall damper with different parameters, using ABAQUS finite element for simulation analysis to study the effects of different viscoelastic materials, viscoelastic layer area, lead core diameter, lead core layout, thickness of composite viscoelastic layer and the thickness ratio of the single-layer thin steel plate on the hysteretic and mechanical properties of the lead-viscoelastic coupling wall damper, and teh design recommendations are given on the same time.