钢筋混凝土框架结构粘滞阻尼减震研究土木工程专业论文.docxVIP

哈尔 哈尔滨工业大学工学硕士学位论文 - -II- Abstract Viscous damper is an effective method of controlling on structures. This thesis mainly aims at an actual project of a hotel at Hai Kou, which is a 10 -story reinforced concrete frame structure, with 8 fortification intensit y (0.30g). In that project, viscous damper is installed in the brace, acting as an energy dissipation system. Structure analysis software and finite element software are used for the following details. The actuality, the principle, and the characteristics of all kinds of controlling devices are studied. The engineering analysis software Midas/Gen and time history analysis are used to analyze the simplified three -dimensional model. Results are studied which include how maximum displacement, base shear, and drift angle of the structure perform with damping coefficient and speed index of viscous damper. For seismic design method, which formation response spectrum method, analysis of different method to calculate the additional viscous dampers for structural damping ratio. Application of finite element analysis software Abaqus consider the structure of the complex modal analysis and the viscous damper of damping for different modes of complex structures. Application of complex modal analysis method to calculate the additional structural damping ratio, and with the specifications in force decoupling method and compared, an d analyze errors. Keywords: passive energy dissipation structure；viscous damper；nonlinear time history analysis； additional damping ratio - - PAGE IV- 目录 摘要 I Abstract II 第 1 章 绪论 1 1.1 引言 1 1.2 结构振 动控制 简介 2 1.2.1 工程结 构振动 控制 的基本 原理 2 1.2.2 工程结 构振动 控制 的分类 3 1.2.3 各项工 程结构 振动 控制的 使用范 围 3 1.2.4 工程结 构振动 控制 的优越 性 3 1.3 工程结 构耗能 减震 简介 4 1.3.1 工程结 构耗能 减震 原理 4 1.3.2 工程结 构耗能 减震 装置的 类型 4 1.4 粘滞阻 尼器 5 1.4.1 粘滞阻 尼器的 基本 原理与 常见构 造 6 1.4.2 粘滞阻 尼器的 力学 模型 7 1.4.3 阻尼器 设置位 置与 连接形 式 8 1.5 本文主 要研究 内容 9 第 2 章 工程实 例背景 介绍 10 2.1 引言 10 2.2 工程实 例背景 与模 型的建 立 10 2.2.1 工程实 例概况 10 2.2.2 结构模 型中的 假定 1