权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Observation and Analysis of Behavior during earthquake for RC Bridges and Rationalization of Seismic Design for RC Structures

钢筋混凝土桥梁地震性能观测分析及钢筋混凝土结构抗震设计合理化

基本信息

批准号：
13555123
负责人：
TANABE Tada-aki
金额：
$ 5.31万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

项目摘要

This year is a final year of this study and new five seismometers were set up at brides in Higashi-Meihan Expressway. Moreover, seismometers that had set up at Odaka line of Nagoya Expressway during earlier period of the study, were moved into Higashi-Meihan Expressway. At present, dense observation network has been established. Although big earthquakes have not observed for Higashi-Meihan Expressway, several earthquake waves were observed at Odaka line of Nagoya Expressway in 1999 and the analysis of behavior during the earthquake for the RC bridge system were performed.In parallel with above effort, the solver that is available to the problem having one million order degree of freedoms have been developed to perform numerical vibration tests for the model of the whole area of Nagoya city. The test is more progressed project based on the results of this topic and the first stage is finished. That is, analytical tools of nonlinear dynamic response based on the flexibility method for a bridge system which is composed from many bridge piers was developed.Elucidation of behavior of RC Bridge system during earthquakes and rationalization of seismic design for RC structures which are purpose of this project will be possible according as the full utilization of the developed tools. Based on this project, we will get more useful results combining observation of response during earthquake and dynamic analysis eith enormous degree of freedoms.

今年是这项研究的最后一年，在东美韩高速公路的新娘身上安装了新的五个地震仪。此外，研究初期在名古屋高速公路小中线安装的地震仪也被转移到东美韩高速公路。目前，已建立了密集的观测网。虽然东-美韩高速公路没有观测到大地震，但1999年在名古屋高速公路小中线上观测到了几次地震波，并对RC桥梁体系在地震中的行为进行了分析。同时，开发了适用于具有100万阶自由度的问题的解算器，并对名古屋全市的模型进行了数值振动试验。测试是在本课题研究成果的基础上进行的更深入的项目，完成了第一阶段的测试。也就是说，开发了基于柔度法的桥梁体系非线性动力响应分析工具，充分利用所开发的工具，对钢筋混凝土桥梁体系在地震作用下的行为进行评估，为钢筋混凝土结构抗震设计的合理化提供了可能。在此基础上，将地震反应观测与大自由度动力分析相结合，将得到更多有用的结果。