【作者】 高晋栋；

【导师】 郑宏；

【作者基本信息】 长安大学 ， 结构工程， 2008， 硕士

【摘要】 钢框架、钢框架内填剪力墙反映了框架结构刚度变化的两个端点值,刚度增幅是突变性质的。钢框架内填钢筋混凝土深梁可以满足两个端点刚度值之间的要求,实现了宽范围的刚度渐变调幅。钢筋混凝土深梁在框架结构中的位置与剪力墙相同,通过改变深梁截面宽度,可以得到不同的抗侧移刚度,满足各种刚度要求,加之采用不同钢筋级别、混凝土强度和配筋率和高宽比,可以获得不同的极限承载力、延性和耗能能力。灵活运用钢筋混凝土深梁作为结构的抗侧力构件可以改善钢框架内填构件抗侧力体系,且钢筋混凝土深梁采用装配式可以克服钢筋混凝土剪力墙震后不易修复的缺点。预制的钢筋混凝土深梁通过高强螺栓与钢框架上下两根钢梁刚性连接,使结构具有良好的抗震性能。本文分析了国内外深梁的研究现状,介绍了钢筋混凝土深梁的基本构成和工作机理,在此基础上,运用ANSYS有限元分析软件,综合考虑各种非线性因素,对钢筋混凝土深梁模型进行了往复荷载作用下有限元模拟,得出深梁高跨比变化、深梁厚度变化、混凝土强度变化,钢筋混凝土深梁水平配筋率、竖向配筋率的变化对钢筋混凝土深梁滞回性能的影响,得出了合理的参数范围。更多还原

【Abstract】 Steel frame and steel frame filled with shear wall reflect two endpoints of the changes of the structural stiffness, and the increase of stiffness is mutation. Steel frame filled with steel– concrete composite deep beams can meet the requirements of two endpoints and can achieve a wide range of stiffness graded AM. Composite deep beams have the same placement with shear walls in frame structure. By changing width of the deep beam, we could have different resistance to lateral displacement stiffness to meet all kinds of stiffness requirements. When the steel class, concrete strength, reinforced rate and depth-width ratio is different, we could obtain different ultimate bearing capacity, ductility and energy dissipation capacity.Nimbly using the reinforced concrete deep beam as the structure anti-lateral force component that May improve steel frame syetem filled with the component ,While steel– concrete deep beams uses the assembly type, it can make up for shortage of the steel– concrete can’t repair after earthquake. Precast steel– concrete composite deep beams is connected rigidly through high strength friction grip bolt with up-down steel beam of steel frame to enable the structure to have the good earthquake resistance performance.analyzing the domestic and foreign deep beam research present situation, introduced the reinforced concrete deep beam’s basic constitution and the work mechanism, based on this, This article to analyse the steel– concrete deep beams models under reciprocation load function using finite element software ANSYS. Synthesisly evaluation account all kinds of non– linear factors, and thougth the finite element simulate we can get influence of these variation that change of depth-span ratio、thickness、concrete strength、level reinforced rate and vertical reinforced rate of steel to hysteretic behavior of steel– concrete composite deep beams. obtaining the reasonable parameter area.更多还原