Earthquake Response Behavior and Seismic Design Method for R/C Structures Based on Influence of Underground Structure

基于地下结构影响的钢筋混凝土结构地震响应行为及抗震设计方法

• 批准号: 03650390
• 负责人: MUTSUYOSHI Hiroshi
• 金额: $ 1.34万
• 依托单位: SAITAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650390/
• 关键词: Reinforced Concrete Bridge Pier; Ground; Underground; Response Analysis; Sway; Rocking; Seismic Design; 鉄筋コンクリ-ト構造物; 地盤と基礎

The influence of ground and an underground structure consisting of a footing and piles on whole response behavior of a reinforced concrete(R/C) superstructure under earthquakes has hardly been clarified. Theobjectives of this study are to make clear earthquake response behavior of R/C bridge piers considering dynamic properties of ground and underground structures and to contribute to the establishment of a reasonable seismic design method for R/C structures.Assuming the dynamic properties of the ground and the underground structure to be a sway and a rocking springs, dynamic response analysis of whole R/C bridge piers was carried out. As for the restoring-forcemodels, Hardin-Drnevich model was used for each spring and bi-linear degrading stiffiness model was used for the R/C pier.From the analyses, it is concluded as follows;(1)When the ground is soft, the displacement of the pier due to the underground structure becomes large though the response acceleration at the top of the pier becomes small.(2)When the yield displacement of the pier obtained from actual field tests is used for the analysis, the displacement of the pier due to the rocking is dominant.

几乎没有阐明地下的地下结构和地下结构对地震下钢筋混凝土（R/C）上层建筑的整个反应行为的影响。这项研究的目标是考虑到地面和地下结构的动态特性，使R/C桥墩的明确地震反应行为，并为建立R/C结构的合理地震设计方法做出贡献。地下结构是摇摆和摇摆的弹簧，对整个R/C桥墩进行了动态响应分析。至于恢复的forcemodels，每个春季使用Hardin-Drnevich模型，双线性降解刚度模型用于R/C码头。从分析中，结论如下；（1）当地面柔软时， ，尽管地下结构引起的码头的位移变得很大，尽管码头顶部的响应加速度变小。由于摇摆而引起的码头是主导的。

项目成果

秋吉 郁子: "地盤と基礎を考慮した鉄筋コンクリート構造物の応答性状" 土木学会年次学術講演会講演概要集. 5. 706-709 (1992)

秋吉育子：“考虑土壤和地基的钢筋混凝土结构的响应特性”日本土木工程学会年度学术会议摘要5. 706-709 (1992)。

益子 直人: "構造物を構成する1部材を取り出して行う仮動的実験手法" 土木学会年次学術講演会講演概要集. 5. 708-709 (1992)

Naoto Masuko：“通过提取构成结构的单个构件进行的拟动力实验方法”日本土木工程学会年度学术会议摘要 5. 708-709 (1992)。

Akiyoshi, I., Mutsuyoshi, H., Saeki, M. and Machida, A.: "Response Behavior of R/C structure Based on Ground and Foundation" JSCE Annual Convention. 706-709 (1992)

Akiyoshi, I.、Mutsuyoshi, H.、Saeki, M. 和 Machida, A.：“基于地面和基础的 R/C 结构的响应行为”JSCE 年会。