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A proposal of a model foundation design code based on limit state design concept

基于极限状态设计理念的模型基础设计规范的提出

基本信息

批准号：
10555163
负责人：
HONJO Yusuke
金额：
$ 6.59万
依托单位：
GIFU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10555163/
关键词：
Limit State Design Pile foundation design performance based design Reliability design Comprehensive design code characteristic values of soil parameters design by partial factors ISO2394 杭基礎の水平耐力性能設計 Fragility曲線耐震設計遠心力載荷試験杭の水

项目摘要

A model foundation design codes based on performance based design and the limit state design concepts has been proposed in this research. This work is based on world wide investigation trips to the various institutes and organization in Europe and North America which were carried out in fall 1998, and 2years of extensive discussion of the research group which include academia, code writers and practicians. The proposed code is now named 'Geotechnical Code 21 ver. 1' by the members. The distinguished features of this code are as follows:1. Unification of design codes in Japan cannot be achieved by writing another code that is on the same level as the existing code. To accomplish the unification, a concept of the higher level is required. Code 21 has invented a new concept called A comprehensive design code. Both the limit state design and the performance design concepts are only components consisting this major concept.2. Code 21 can be used as a fully performance based design codes. Furthermore, it is written in a way that this code can be used as a code for code writers. Therefore, this code can be used to develop a new foundation design code by government organization/local government bodies/owners for their structures3. In conventional geotechnical design codes, including even newly developed Eurocod 7, soil parameter characteristic values are not reasonably determined. In Code 21, a new attempt is made on this problem which would lead to more standardized way to determine the characteristic values of the soil parameters.4. A comprehensive design code like Code 21, the sate of the art knowledge on the concerning structures should be included. At most efforts were made to include the optimum amount of check points that need to be considered in designing a structure especially in 'Pile design' chapter.

本研究提出了基于性能设计和极限状态设计理念的模型基础设计规范。这项工作是基于1998年秋天对欧洲和北美的各个研究所和组织进行的世界范围的调查旅行，以及包括学术界，代码编写人员和实践者在内的研究小组2年的广泛讨论。建议的规范现在被命名为“岩土工程规范21版”。1‘ ’由会员决定。该代码的显著特征如下：1。在日本，通过编写与现有代码处于同一级别的另一个代码，无法实现设计代码的统一。为了实现统一，需要一个更高层次的概念。代码21发明了一个新概念，叫做综合设计代码。极限状态设计和性能设计概念都只是构成这一主要概念的组成部分。规范21可以作为一个完全基于性能的设计规范。此外，它的编写方式使该代码可以用作代码编写人员的代码。因此，本规范可用于政府组织/地方政府机构/业主为其结构制定新的基础设计规范3。在传统的岩土设计规范中，甚至包括新制定的eurocod7，土壤参数特征值都没有合理确定。在规范21中，对这一问题进行了新的尝试，从而为确定土体参数的特征值提供了更加规范的方法。一个全面的设计规范，如规范21，有关结构的技术知识的安全应该包括在内。在设计结构时，特别是在“桩设计”一章中，大多数努力都包括了需要考虑的检查点的最佳数量。