转动型阻尼器及转动型耗能节点研究现状

A Review on Rotational Dampers and Rotational Energy Dissipating Joints

梁柱节点需要较大的塑性转动能力,以避免节点脆性破坏并保证结构整体性,在节点安装转动型阻尼器或直接通过节点安装耗能元件形成转动耗能节点可以实现这一目标。综述了现有的转动型阻尼器以及转动型耗能节点,常见的转动型耗能阻尼器可分为摩擦型、金属型和复合型;常见的转动型耗能节点可分为摩擦型、金属型,以及自复位功能耗能节点。归纳了不同类型转动型阻尼器以及转动型耗能节点的构造形式;对比了复合型阻尼器、摩擦型和金属型阻尼器及耗能节点以及自复位耗能节点的试验曲线及耗能特点,归纳出了矩形、梭形、平行四边形、弓形、旗帜形5种滞回曲线形状;归纳了转动型阻尼器及转动型耗能节点的安装方式,以及试验中常用的悬臂式、十字形和平行连杆试件形式;对比了转动型阻尼器及转动型耗能节点的特点。并对未来的研究方向提出了展望。

The beam-column joints require a large plastic rotational capacity to avoid brittle failure and ensure the integrity of structures.To achieve this design target,the rotational dampers are installed to the joints.Another method is to build rotational energy dissipating joints by installing energy dissipating components to the joints.This paper presents a review on previous studies on the rotational dampers and the rotational energy dissipating joints.The rotational dampers can be classified as friction type,metal type and composite type.The rotational energy dissipating joints can be classified as friction type,metal type,and self-centering type.The configurations of various types of rotational dampers and rotational energy dissipating joints are discussed in this paper.Test curves and energy consuming characteristics for various types of rotational dampers and rotational energy dissipating joints are compared.The shapes of test curves are summarized into five types：rectangular,fusiform,parallelogram,bow-shaped and flagshaped.The installations of rotational dampers and rotational energy dissipating joints are concluded.The test specimens include cantilever type,cruciform and parallel linkage.This paper compares the characteristics of rotational dampers and rotational energy dissipating joints.The future research prospects are also discussed.