Precast Seismic Structural Systems (PRESS)-Task 1.4 Analytical Platform Development

这是预应力结构体系协调研究计划的一部分。为了研究这两种连接类型的行为，将开发一个灵活的分析平台。该平台将是计算机分析程序DRAIN 2D-X的扩展，以适应三维元素的发展，包括从属约束，并增强现有的前处理和后处理工具，同时完善结构的非线性静态和动态分析的当前程序。还将开发特殊用途元素。这些将基于物理光纤模型，并将允许不同级别的分析复杂性。总努力的很大一部分将用于记录作为分析平台基础的分析程序，以便利其他方案参与者纳入特殊目的要素。还将提供文件，以指导其他参与者和用户使用该计划。该项目将发展开展整个地震预制结构研究计划所涉及的所有研究所必需的基本分析能力。

This is a part of the coordinated research program in prestressed structural systems. In order to study the behavior of the two broad types of connection type, a flexible analytical platform will be developed. This platform will be an extension of the computer analysis program DRAIN 2D-X to accommodate the development of three-dimensional elements, to include slaving constraints and to enhance presently available pre-and post-processing tools while refining current procedures for the nonlinear static and dynamic analysis of structures. Special purpose elements will also be developed. These will be based on physical fiber models and will permit various levels of analysis sophistication. Significant part of the total effort will be directed towards documenting the analytical procedures which underlie the analytical platform in order to facilitate the inclusion of special purpose elements by other program participants. Documentation will also be provided to guide other participants and users in the use of the program. This project will develop the basic analytical capability necessary to carry out all the studies involved in the overall seismic precast structure research program.