Evaluation of Earthquake Response of Reinforced Concrete Weak Model Structures

钢筋混凝土弱模型结构的地震反应评价

• 批准号: 61460171
• 负责人: OKADA Tsuneo
• 金额: $ 3.07万
• 依托单位: University of Tokyo
• 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-61460171/
• 关键词: Seismic Capacity; Reinforced Concrete Building; 地震応答観測; 弱小モデル; 鉄筋コンクリート造; 実地震動; 柱崩壊型; はり崩壊型; 弾塑性地震応答解析

Observation of earthquake response of reinforced concrete building model structures has geen carried out since 1983. Two types of 1/3 scaled buildings structures; strong beam-weak column and weak beam-strong column, were constructed. The design base shear was reduced to about 50% of the real practice in Japan so that the structures could take damage even in moderate earthquake. Records of response to two earthquakes, which caused damage to the structures, were analyzed in this project. Yielding of reinforcing bars and formation of yield mechanism were confined both by the observation and analysis. A free vibration test to investigate the deterioration of the stiffness and a static lateral loading test to estimate the relative stiffness between the structures and the ground soil were also caried out.It is reported here that building response can be estimated by the consideration of a) static lateral strength and yield mechanism, b) change of frequency characteristics due to stiffness deterioration, c) frequency characteristics of ground motion and d) characteristics of ground soil.

钢筋混凝土建筑模型结构的地震反应观测工作从1983年开始进行。构造了强梁弱柱和弱梁强柱两种1/3缩尺房屋结构。日本将设计基底剪力降低到真实的实际值的50%左右，使结构在中等地震作用下也能发生破坏。本项目对两次地震的反应记录进行了分析，这两次地震对结构造成了破坏。通过观察和分析，确定了钢筋的屈服和屈服机制的形成。本文还进行了自由振动试验和静力水平荷载试验，分别研究了结构刚度退化和结构与地基土之间的相对刚度，并提出了考虑结构静力水平强度和屈服机制，B结构刚度退化引起的频率特性变化，考虑结构的动力响应。c）地震动频率特性; d）地基土特性。

项目成果

田村良一, 門河直実, 岡田恒男: 日本建築学会大会学術講演梗概集. C. 5-6 (1985)

Ryoichi Tamura、Naomi Kadokawa、Tsuneo Okada：日本建筑学会会议学术讲座摘要 C. 5-6 (1985)。

Tsuneo Okada, Ryoichi Tamura, Matsutaro Seki, Fumitoshi Kumazawa, Shoji Horiuchi: "Observation of Earthquake Response of Reinforced Concrete Weak-Model Structures (Part 2; Outline of Observation Records and Elastic Response Characteristics)" Proceedings o

Tsuneo Okada、Ryoichi Tamura、Matsutaro Seki、Fumitoshi Kumazawa、Shoji Horiuchi：“钢筋混凝土弱模型结构的地震响应观测（第 2 部分；观测记录概要和弹性响应特性）”论文集

田村良一, 関松太郎, 岡田恒男: 日本建築学会大会学術講演会梗概集. 1677-1678 (1983)

Ryoichi Tamura、Matsutaro Seki、Tsuneo Okada：日本建筑学会年会记录 1677-1678（1983 年）。

田村良一, 岡田恒男: 日本建築学会関東支部研究報告集. C. 9-12 (1985)

田村亮一、冈田恒夫：日本建筑学会关东分会研究报告 C. 9-12 (1985)。

T. Okada;R. Tamura: Bulletin of Earthquake Resistant Structure Reseach Center Institute of Imdustrial Science, Unversity of Tokyo. 18. 31-38 (1985)

T.冈田；R.