基于BIM平台的钢框架结构及其抗震性能分析

发布时间：2018-02-13 15:00

本文关键词： 钢结构体系抗震性能反应谱时程分析非线性消能减震设计　出处：《安徽建筑大学》2014年硕士论文　论文类型：学位论文

【摘要】：钢结构体系应用广泛。与传统钢筋混凝土结构相比，钢结构具有强度高、重量轻、材料致密均匀以及力学性能良好等特点。基于此，钢结构在工程结构抗震领域也有其独特优势，地震震害也相对于钢筋混凝土结构要轻。随着技术进步以及人们对于建筑使用功能需求的提高，钢结构的形式也呈现多样化的特点，这对钢结构本身的抗震性能也提出了新的挑战。本文介绍了钢框架结构体系的历史和发展现状。我国属于地震高发地带，加之城市人口愈发密集，其抗震性能的研究迫在眉睫。本文在国内外相关理论研究的基础上，利用BIM软件建立了某大底盘双塔连体钢框架结构的建筑模型和结构模型，并利用通用结构分析软件SAP2000对其进行一系列抗震性能分析，主要内容如下： 1．利用Autodesk Revit软件建立了该工程实例的建筑模型和结构模型。 2．对结构进行了模态分析，得出结构的自振特性；在多遇地震作用下，依据规范反应谱对结构进行反应谱分析和弹性时程分析，简要比较了二者的结果。 3．在罕遇地震作用下，对结构进行了非线性时程分析，得出结构的塑性发展趋势。并通过节点位移和层间位移角比较了双塔间地震响应的差异性。 4．对该结构采取设置粘弹性阻尼器的消能减震设计，，比较了减震结构和非减震结构的地震响应，从而得出在罕遇地震作用下采取减震设计后的优越性。
[Abstract]:Compared with the traditional reinforced concrete structure, the steel structure has the characteristics of high strength, light weight, uniform material density and good mechanical properties. Steel structures also have their unique advantages in the field of earthquake resistance of engineering structures, and earthquake damage is lighter than that of reinforced concrete structures. The form of steel structure is also diversified, which poses a new challenge to the seismic performance of steel structure itself. In this paper, the history and development of steel frame structure system are introduced. The seismic behavior of steel frame structure system is urgent to be studied in China, which belongs to the high earthquake area and the urban population is becoming more and more dense. This paper is based on the relevant theoretical research at home and abroad. The building model and structural model of a steel frame structure with two towers with a large chassis are established by using BIM software, and a series of seismic performance analysis are carried out by using the general structure analysis software SAP2000. The main contents are as follows:. 1. The building model and structure model of the project are established by using Autodesk Revit software. 2. The modal analysis of the structure is carried out, and the natural vibration characteristics of the structure are obtained, and the response spectrum analysis and elastic time history analysis of the structure are carried out according to the normative response spectrum under the action of frequent earthquakes, and the results of the two methods are compared briefly. 3. Under the action of rare earthquake, the nonlinear time-history analysis of the structure is carried out, and the plastic development trend of the structure is obtained, and the difference of seismic response between the two towers is compared by the angle of the node displacement and the interstory displacement. 4. The energy dissipation design of the structure is designed with viscoelastic dampers. The seismic response of the structure is compared with that of the non-absorber structure, and the superiority of the design under rare earthquake is obtained.
【学位授予单位】：安徽建筑大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU352.11;TU391

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