Studies on Seismic Design of Concrete Structures

混凝土结构抗震设计研究

• 批准号: 61460159
• 负责人: IKEDA Shoji
• 金额: $ 4.03万
• 依托单位: Yokohama National University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1986
• 资助国家: 日本
• 起止时间: 1986 至 1987
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-61460159/
• 关键词: Seismic design; Pseudo-dynamic loading; Reinforced concrete column; Inelastic response; Reinforced concrete rigid frame; Immersed tunnel; 可撓性接合部; 準動的載荷; 鉄筋コンクリート; 数値解析モデル

The head investigator proposed a concept of seismic design of concrete structures in which concrete structures should be designed not only to be safe during earthquakes but also to fulfill serviceability after the earthquakes. This concept was adopted in the Standard Specification of Concrete of the Japan Society of Civil Engineers (JSCE). This study intends to confirm the appropriateness of the concept and to develop the design method.Since pseudo-dynamic loading test was the most useful tool to investigate inelastic behavior of reinforced concrete columns, a loading system using personal computer combined with actuator was developed successfully at first. By using this system, reinforced concrete column specimens and reinforced concrete rigid frame specimens were studied to obtain inelastic response characteristics under actual earthquake motions. The results were compared with the analytical values which were calculated by means of the originated computer program. Satisfactory coincidence was shown in both values.Static reversal cyclic loading tests clarified the appropriateness of the classification of the level of damage in concrete structures specified in the specification of JSCE. Pseudo-dynamic test confirmed the appropriateness of the design values specified for each damage level.Studies on seismic behavior and design of immersed reinforced concrete tunnels were carried out and flexible joints of tunnel elemants were found to be effective against earthquake motions.

首席研究员提出了混凝土结构抗震设计的概念，其中混凝土结构的设计不仅要在地震期间安全，而且要在地震后满足使用性能。这一概念被日本土木工程师协会（JSCE）的混凝土标准规范所采用。本研究以拟动力试验为研究钢筋混凝土柱非弹性行为最有效的工具，首先成功地开发了一套以个人电脑与驱动器结合的加载系统。利用该系统对钢筋混凝土柱试件和钢筋混凝土刚架试件进行了实际地震作用下的弹塑性反应分析。将计算结果与用计算机程序计算的分析值进行了比较。静态反复荷载试验表明，JSCE规范中混凝土结构损伤等级分类是合理的。通过拟动力试验，验证了各损伤等级设计值的合理性，并对钢筋混凝土沉管隧道的抗震性能和设计进行了研究，发现隧道构件的柔性节点具有较好的抗震性能。

项目成果

池田尚治: 土木学会論文集第5部. V-10. (1989)

Naoji Ikeda：日本土木工程师学会会议记录，第 5 部分。V-10 (1989)。

Shoji Ikeda: ACI Special Publication.

Shoji Ikeda：ACI 特别出版物。

Ikeda, S.: "Seismic limit state of reinforced concrete structures and evaluation of serviceability after the earchquake." Proceedings of Annual Conference of JSCE. 43-5. 44-45 (1988)

Ikeda, S.：“钢筋混凝土结构的抗震极限状态及震后使用性评估”。

Ikeda, S.: "Study on seismic behavior of reinforced concrete immersed tunnels having flexible joint" Proceedings of The Japan Society of Civil Engineers. V-10. (1989)

Ikeda, S.：“具有柔性接头的钢筋混凝土沉管隧道的地震性能研究”日本土木工程师学会会议录。

Ikeda,S: Korea-Japan joint seminar ,1988. (1988)

池田S：韩日联合研讨会，1988。