钢筋混凝土梁—型钢混凝土柱框架节点传力机理分析-结构工程专业论文.docxVIP

西南交通大学硕士研究生学位论文 第1页 摘 要 本文简要介绍了型钢混凝土(SRC)结构的特点，SRC结构的发展史及SRC 结构的基本类型。以RC梁--SRC柱框架节点为研究对象，希望在原有研究成 果上作～‘些有益的尝试。 钢筋混凝土有限元分析是结构分析的重要研究方向，它能够比较准确的 分析工程中许多大型复杂结构的受力性能，而这些结构体系往往难以用试验 方法来确定。本文作为一次尝试，将非线性有限元应用于Rc梁--SRC柱框架 节点的分析中，应用大型有限元软件ANSYS对多种不同类型的RC梁一SRC柱 节点的承载力、应力一应变关系、柱型钢反力分布规律、节点破坏时裂缝的 开展及其它性能进行了计算分析。在分析过程中充分考虑影响Rc梁--SRC柱 框架节点的受力性能、破坏形态、计算假定、承载能力、裂缝和刚度变形的 主要因素，并将有限元结果进行比较分析，提出Rc梁--SRC柱框架节点的破 坏模??、传力机理及抗剪强度计算方法。为Rc粱--SRC柱框架节点的强度、 刚度、变形和裂缝开展程度的计算理论和分析提供新了的手段和方法。 关键词： 非线性有限元 梁柱节点 SRC ANSYS  西南交通丈学硕士研究生学位论文 第Jl页 Abstract This thesis firstly introduced the properties，the history and the base form of Steel Reinforeed Concrete(SRC)．This thesis foCUS on beam．column ioints of Reinforced Concrete Beam—Steel Reinforced Concrete Column，hoping to do sone constructive works． Renforced concrete finite element analysis iS all important research direct in structure analysis realm．It CSXI comparatively nicety analyses the endure force capability of many complex configuration in engineering，and these configurations system sometimes difficult to using examination methods to make certain。In this thesis，nonlinear finite element analysis different beam．column ioints of Reinforced Concrete Beam—Steel Reinforced Concrete Column was studied with ANSYS．The capacity,relation of stress·strain．the distributed regulation of rection in steel of column，the development of crack when the joint damaged and other abilities ofjoints was analyzed．Good agreements among the finite element results were found．It showed the models are accurate．In analytical process。the main factors were fully considered which infiunced the force function，destructive appearance，computational assumption，bearing capacity,crack and rigidity deformation of beam—column joints of Reinforced Concrete Bcam．Steel Reinforced Concrete Column。ANSYS conduct and actions as an nonlinear analysis software Can imitate really the bearing forced structural state，clear and definite the distributing district of stress．Then failing modle，load tra