【作者】 张亮；

【导师】 姚谦峰；

【作者基本信息】 北京交通大学 ， 结构工程， 2007， 硕士

【摘要】 随着改革开放的不断深入,作为全面建设小康社会的一个重要标志——住宅建设发展迅猛。密肋壁板结构作为一种新型节能住宅结构体系,有着很好的发展前景。然而在新结构体系不断的发展应用过程中,许多内容仍需不断的研究、完善与补充。本文在总结课题组前期研究工作的基础上,针对传统复合材料等效弹性板模型在求解墙体有效弹性常数中存在的不足,提出了基于基体一夹杂性复合材料的密肋复合墙体等效弹性板模型,并借助细观力学有限元分析方法,对本文提出的计算模型进行了验证。最后利用正交各向异性弹性力学理论推导了密肋复合墙体的弹性抗侧刚度的实用计算公式,完成的主要工作如下:1、结合密肋复合墙体的构造特点,建立了墙体的基体——夹杂型复合材料模型,将宏观上连续分布的混凝土肋梁和肋柱看作基体,将嵌固于混凝土肋梁和肋柱中的砌块看作夹杂,借助复合材料细观力学理论,推导了墙体有效面内剪切模量的计算公式。2、借助细观力学有限元分析方法对密肋复合墙体进行了弹性内力分析,就求解密肋复合墙体宏观有效弹性模量中的若干问题,主要包括代表性体积单元的选取以及所施加边界条件的确定等问题进行了探讨,建立了适用于密肋复合墙体的细观力学有限元模型,以作为各种解析解的重要补充。3、在弹性阶段,利用正交各向异性弹性力学理论,考虑轴压比、肋柱划分方式及墙体底部连接方式对墙体抗侧刚度的影响,提出了密肋复合墙体抗侧刚度的实用计算公式。更多还原

【Abstract】 Along with reform and open to go deep into, be used as an important marking in the development middle class family society, residence construction develops fast. Multi-ribbed composite Slab Structure, as a new structural system, is very potential. But there is still a lot to be deeply researched and complemented in the development and application process of new construction system. The paper, through summing up preliminary studies, proposes the matrix-inclusion type composite materials equivalent elastic wall model against the deficiencies of traditional model. And the micro-mechanics finite element method is used to verify the calculation model proposed in the paper. Finally, applying orthotropic elasticity theory, a practical formula for the anti-lateral stiffness of Multi-ribbed Composite Wall (MRCW) is derived. Finished work as following:Considering the special structure of the MRCW, establish the matrix-inclusion type composite materials model of the wall and look the concrete ribbed-beams and ribbed-columns of continuous distribution as the matrix, and the block embedded in them as the inclusions. By means of the composite materials theory, the formula of in-plane effective shear moduli of equivalent walls are deduced.The micro-mechanics finite element method is used to make an analysis of the MRSW on the elastic stage in this article. Discussions about the selection of representative volume element and boundary condition exerted, which are the main problems in the solution process of the effective elastic moduli of MRSW, are made and micromechanics models suitable for MRSW are established.Applying orthotropic elasticity theory, a practical formula is derived for the anti-lateral stiffness of MRCW.更多还原