Estimation and Evaluation of Torsional Earthquake Response of Asymmetric Buildings

非对称建筑物扭转地震响应的估算与评价

• 批准号: 15360292
• 负责人: NAKANO Yoshiaki
• 金额: $ 9.54万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15360292/
• 关键词: Reinforced Concrete Structure; Seismic Strengthen; Torsional Response; Stiffness Eccentricity; Strength Eccentricity; Static Loading Test; Shaking Table Test; Equivalent Mass Ratio

In this research, the experimental and analytical studies on the following contents have made.(1) First, the strength eccentricity of asymmetric building structures was focused as the parameter for shaking table test. According to the test result, it is revealed that the strength eccentricity significantly affects the failure mode and dynamic behavior of building.(2) Considering results from the preliminary studies above, an existing building is modeled considering strength eccentricity as well as stiffness eccentricity, and the torsional response of the model building is simulated through a simplified procedure, which is based on the capacity spectrum method. To verify the proposed procedure, the response of an equivalent SDOF system is computed and compared with results obtained through MDOF system.(3) The procedure of estimating the torsional earthquake response of frames with eccentricity is proposed, and key issues on seismic design for buildings concerned in this study is discussed.

本研究对以下内容进行了实验和分析研究。(1)首先，针对非对称结构的强度偏心率作为振动台试验参数进行了研究。试验结果表明，强度偏心对结构的破坏形态和动力特性有显著影响。(2)在此基础上，建立了考虑刚度偏心和强度偏心的既有结构模型，并基于能力谱法对模型进行了简化计算。为了验证所提出的方法，计算了等效单自由度系统的响应，并与多自由度系统的结果进行了比较。(3)提出了偏心框架扭转地震反应的计算方法，并对偏心框架抗震设计中的关键问题进行了讨论。

项目成果

水平2方向地震入力を受ける単層偏心建物における等価1自由度モデル

两个水平方向地震输入的单层偏心建筑等效一自由度模型

• 发表时间: 2005
• 期刊: コンクリート工学論文集 Vol.16,No.2
• 作者: 藤井賢志;中埜良昭;真田靖士
• 通讯作者: 真田靖士

SEISMIC RESPONSE CONTROL OF SINGLE-STORY UNSYMMETRIC BUILDINGS WITH EARTHQUAKE RESISTANCE DEVICE DUE TO ITS DISPLACEMENT

抗震装置对单层不对称建筑位移的地震响应控制

• 发表时间: 2005
• 期刊: Proceedings of the Japan Concrete Institute Annual Conference (Japan Concrete Institute) Vol.27, No.2
• 作者: Kenji FUJII;Hiroyasu SAKATA;Yoshiaki NAKANO
• 通讯作者: Yoshiaki NAKANO

藤井賢志, 中埜良昭, 真田靖士: "2方向地震入力を受ける単層1軸偏心建物の非線形応答の推定に関する検討"日本地震工学会大会-2003梗概集. 302-303 (2003)

Kenji Fujii、Yoshiaki Nakano、Yasushi Sanada：“双向地震输入下单层、单轴偏心建筑的非线性响应估计研究”日本地震工程学会会议 - 2003 年会议记录（2003 年）。

PREDICTION OF SEISMIC RESPONSE OF SINGLE-STORY UNSYMMETRIC BUILDINGS USING EQUIVALENT SDOF MODELAND ITS APPLICABILITY

等效单自由度模型对单层非对称建筑地震反应的预测及其适用性

• 发表时间: 2005
• 期刊: Journal of Structural and Construction Engineering (Architectural Institute of Japan) Vol.596
• 作者: Kenji FUJII;Yoshiaki NAKANO;Yasushi SANADA Hiroyasu SAKATA;Akira WADA
• 通讯作者: Akira WADA

SIMPLIFIED NONLINEAR ANALYSIS PROCEDURE FOR ASYMMETRIC BUILDINGS

不对称建筑的简化非线性分析程序

• 发表时间: 2004
• 期刊: Proceedings of the 13th World Conference on Earthquake Engineering (CD-ROM)
• 作者: Kenji FUJII;Yoshiaki NAKANO;Yasushi SANADA
• 通讯作者: Yasushi SANADA