耗能减震钢结构住宅的分析与设计-防灾减灾工程及防护工程专业论文.docxVIP

ABSTRACT ABSTRACT This paper briefly reviews the state—-of-the—-art of steel structure residence and structural vibration contr01．Based on the study of seismic performance of the traditional steel structure residence and the properties of passive control technology，a new type of steel structure residence with added energy—dissipatied devices is proposed．The advantages of the new system are discricribed in detial according tO the characteristics of structures． The dynamic characteristics of a hign—level steel stmcture residence is analyzed by using finite element program ETABS．And the deformation of the structure under earthquake load and wind load is given． Besides，the models of a high—level steel structure residence with／without dampers are analyzed．The passive control technology of friction damper and viscous damper is applied respectively in this model．The responses and vibration reductional effecs of different models are compared with the original structure．Studies show that this new type of steel structure residence with added energy—dissipatied devices possesses superior seismic persormance． In the end，the design flow prosess of this new type of steel structure residence with added energy—dissipatied dampers is proposed．In order to verify the validity of it，a design exampel is also provided． Keywords：Steel Structure Residence；Energy Dissipation；Friction Damper；Viscous Damper；Seismic Design I【  广州大学碗：忙学位论文 第一章 绪论 1．1引言 目前，我国是世界上最大的砌体建筑和混凝土建筑大国，每年生产近70000 亿块砖(约占全世界产量的1／2)、5亿吨水泥(约占世界产量的l，3)，但以此付 来的代价却是每年毁坏农田15万亩，消耗标准煤约7000万吨，并且排放出大量 的C02和废水对环境也造成严重的污染，更为严重的是砖、混凝土属不可再生 材料，一次性使用后会形成大量难以处理的城市建筑垃圾m。随着城市经济的快 速发展和“可持续发展观”的提出，人们已经开始认识到砌体、混凝土建筑不利于 环境与城市的可持续发展，如何解决城市经济发展和城市建筑可持续发展之间的 矛盾，特别是针对关系到广大城市居民的切身利益、量大面广的城市住宅建筑， 是摆在我国建筑工程界面前一个迫切需要解决的问题。 近年来，随着???国钢铁产业的飞速发展，钢材产量和质量持续提高，品种增 多、价格逐步下降，钢结构的应用范围日益广泛，钢结构建筑的发展为解决上述 问题提供了突破口。首先，钢材由于其具有高强度、高性能、可再循环使用等优 点，钢结构目前已是国际公认的“绿色建筑”。其次，钢结构具有结构空间布局灵 活，构件截面尺寸小，住房使用面积高，可有效提高使用面积5％_8％。另外， 钢结构有利于工业化配套化生产，具有安装方便、施工速度快等优点，工期可缩 短1／2．1／3。同时铡