【作者】 樊光发；

【导师】 何放龙；

【作者基本信息】 湖南大学 ， 结构工程， 2005， 硕士

【摘要】 异形柱框架一填充墙结构是房屋建筑结构中常见的结构体系,而框架结构设计中内力计算与分析是结构设计的重要依据。填充墙作为异形柱框架抗侧力结构中的一种非结构构件,其抗侧力性能的研究引起了国内外研究人员和工程界的普遍关注。因此,开展对于这种结构类型的研究,并研制出可供设计的CAD软件系统具有一定的理论意义和重要的实用价值。本论文研究的主要成果如下。 通过对异形柱—填充墙体系试验模型的试验数据分析,建立了合理的异形柱—填充墙体系结构分析模型(层间—杆系模型)。在该模型中,填充墙用X形链杆模拟受力,通过等效刚度原理形成填充墙刚度矩阵[K_w];框架部分则用考虑剪切变形的空间三维杆单元作为异形柱框架结构的单元刚度矩阵[K_f]。并且该模型中异形柱—填充墙框架体系中的填充墙作为结构受力构件在抗震受力分析时将填充墙刚度与异形柱刚度合并计入异形柱—填充墙框架结构体系单元刚度矩阵中进行整体分析,从而使得异形柱—填充墙结构体系的分析更趋合理。 采用Kent和Park建议的混凝土本构关系以及钢筋本构关系,将每根杆件划分为5个单元。每单元按高斯积分取五个截面进行分析。单元截面划分采用了条带法,单元加载方式采用中点刚度的增量变刚度方法。采用Visual Fortran语言编制了能进行异形柱—填充墙框架体系结构受力全过程分析的程序。结合试验数据论证了模型的合理性和正确性。 采用Visual Fortran语言编制了异形柱—填充墙结构体系的结构分析软件—SCCAD系统。该程序对异形柱—填充墙结构体系进行整体分析;通过建立三维空间模型,计算出结构内力N,M_x,M_y;利用计算结果对异形柱进行正截面承载力计算和斜截面受剪承载力计算,合理地反映了异形截面框架柱双向压(拉)弯的受力性能。对异形柱的正截面配筋和斜截面配筋,采用基于数值分析法精确解导出的工程实用计算方法,理论上适用于任意截面柱,精度高、计算速度快,方便工程设计人员使用。更多还原

【Abstract】 Structure with special-shaped columns and masonry filled is the familiar frame structure system on the building structure; it is important gist of building design that internal force calculation and analysis of frame structure design. Masonry As a un-structural component of Structure with special-shaped columns and masonry filled, it is aroused common attention of researcher in internal and overseas on the lateral force performance. Therefore there is a necessity to develop special software to design and analyze this kind of structure. In this thesis, several aspects as follows are studied.Based on the experiment data on the model of structure with special-shaped columns and masonry, it is built structure analysis on the Structure with special-shaped columns and masonry. In the model, masonry uses X shape member bar instead of masonry and formats stiffness matrix; frame formats stiffness matrix of structure with special-shaped columns through bar element in 3D space. Therefore, masonry in the structure with special-shaped columns as structural component, it should be considered to the stiffness matrix of structure with special-shaped columns on the internal force calculation and analysis of frame earthquake-resistance design. So it come to appropriate on analysis for the Structure with special-shaped columns and masonry filled.Concrete constitutive relationship and steel reinforcement constitutive relationship on the suggested of Kent and Park are used, and every member bar is divided to five elements. Every element is analyzed with Gauss integral by dividing to five cross sections. Strip method is adopted in the element cross sections division. Increment variable stiffness method is applied to the element loading manner. The program of complete procedure for Structure with special-shaped columns and masonry filled has been developed in the environment of Visual Fortran. Rationality of the model is demonstrated by the experiment data.The object-oriented CAD system for space structure with special-shaped columns and masonry filled (SCCAD) has been developed in the environment of Visual Fortran. Structure with special-shaped columns and masonry filled is analyzed as solid by the program. The behavior of R.C. columns subjected to biaxial eccentric loading is appropriately reflected by the program calculation results. The method of Numerical analysis is adapted to the calculation on the design of Normal cross section and更多还原