论文部分内容阅读
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。
Beam-column joints require large plastic rotation ability to avoid brittle failure of the joints and ensure structural integrity. This can be achieved by installing a rotary damper at a node or forming a rotating energy-consuming node by directly installing energy-consuming components through nodes. The existing rotating damper and rotating energy dissipation node are reviewed. Common rotating damper can be divided into friction type, metal type and composite type. The common rotating type energy dissipation node can be divided into friction type, metal Type, as well as self-resetting energy-consuming nodes. The structure types of different types of rotating dampers and rotating dissipation nodes are summarized. The experimental curves and energy dissipation characteristics of composite dampers, friction and metal dampers, energy dissipation nodes and self-resetting energy dissipation nodes are compared. Five kinds of hysteresis curves, such as rectangular, fusiform, parallelogram, arch and flag, are summarized. The installation methods of rotating damper and rotating energy dissipation node are summarized, and cantilevers, cruciform and parallel The form of connecting rod specimen is compared with that of turning damper and turning type energy dissipation node. And put forward the prospect for the future research direction.