Development of a self-regulation performance assessment system for RC structures by constructing a communication protocol connecting numerical analysis and element experiment

一般来说，我们仍然有一个困难的数值再现结构的响应，其中局部变形，如钢筋屈曲。因此，本研究的最终目标是发展一种由具有常规本构律的标准单元和通过单独进行单元试验获得响应的专门开发单元组成的分析方法，并提出一种新的分析方法和新的设计方法，这在构建上述系统时是必不可少的。研究结果如下：(1)分析系统与实验系统之间通信协议原型的开发。考虑到数据的大规模、分布/并行环境和可扩展性，采用所谓的文档系统进行通信协议的开发。所采用的通信协议在小型局域网内进行了测试，结果表明，对于非线性程度适中的系统，该协议的工作效率更高。(2)随机元自由法的发展为了方便地对材料的不确定性和复杂的钢筋混凝土结构进行建模，提出了一种随机元自由法。该方法是通过微扰展开法或多标称混沌法对无单元伽辽金法进行扩展而得到的。通过与各种边界条件下蒙特卡罗模拟结果的比较，验证了该方法的有效性。(3)自质量调节虚拟材料模型的开发地下钢筋混凝土结构的连接部分和边缘部分采用自质量调节型虚拟材料模型，该模型可自动生成配筋。由此得出一种可以实际应用的设计模式，并能承受适当程度的弯剪力。值得注意的是，当考虑剪切破坏的尺寸效应占主导地位的大尺寸构件时，目前的方法更加有效。少

In general, we still have a difficulty in numerically reproducing a response of the structure in which a localized deformation, such as a buckling of reinforcement steel. Hence, the final goal of the present research was to develop the analysis method which is composed of a standard element with conventional constitutive law and a specially developed element in which responses are obtained through an element experiment separately conducted, and to suggest a new analytical method and new design method which become indispensable when building the above-mentioned system. The research result enumerated below :(1)Development of prototype to the communication protocol used between analysis and experiment systemsThe development of the communication protocol was carried out using so-called Document system in consideration of large-scale sizing, distribution / parallel environment and extendibility of the data. The adopted communication protocol was tested within small-scale LAN, and is found t … More o work for the system in which the level of nonlinearity is moderate.(2)Development of Stochastic Element Free MethodFor the purpose of making it possible to model easily not only the indefinite nature of the material but complicated RC structures, an stochastic element fee method is developed. The method is developed by extending the element free galerkin method by either perturbative expansion method or Polynominal Chaos. By comparison with the result of the Monte Carlo simulation in various boundary conditions, the validity and effectiveness of the technique are demonstrated.(3)Development of self mass adjustment virtual material modelTo the junction part and edge part of subterranean ferro-concrete structure, a self mass adjustment type virtual material model, in which reinforcing bar arrangement can be automatically generated, is adopted. From the result, it can be obtained, a design pattern which can be actually applied and which can sustain bending and shear force, with suitable degree. It is notable to say that the present approach becomes more effective when the large-sized component, in which the size effect of shear failure becomes dominant, is considered. Less