Development of A Program for Inelastic Earthquake Response Analysis of 3-D RC Frame Structures

3-D RC 框架结构非弹性地震响应分析程序的开发

• 批准号: 63850110
• 负责人: IEMURA Hirokazu
• 金额: $ 4.67万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-63850110/
• 关键词: Reinforced Concrete; Frame Structure; Three Dimension; Inelastic Earthquake Response; Axial Force Variation; Computer Program; Hybrid Experiment; Earthquake Damage; 鉄筋コンクリート構造物; 弾塑性挙動; 立体振動; 応力ーひずみモデル; 地震応答; ファイバーモデル; 数値計算

The first part of this paper introduces the concept of stress-strain based inelastic earthquake response analysis of RC frame structures considering the effects of three dimensional combined stresses. The material non-linearity of RC elements is evaluated by using a fiber model based on hysteretic stress-strain relations. The accuracy of concrete and steel constitutive laws are examined by the comparison of analytical and experimental inelastic moment-curvature relations. Non-linear earthquake structural response is computed by numerical step-by-step solution of the dynamic equation of motion. By the present analytical method, the inelastic seismic behavior of RC tower structures of cable-stayed PC girder bridges can be examined in detail and it was shown that dynamically varying axial forces are an important factor to evaluate the seismic safety of the structure.The second part of this paper presents an application of substructure-based on-line hybrid tests for computation of inelasti … More c earthquake response of integral structures. The part of a structure expected to behave strongly in nonlinear range is experimentally tested to determine its restoring-force characteristic, while the remaining part of the structure is included in the model analytically. A series of reinforced concrete (R/C) multistory shear building frames were analyzed for earthquake response in which the first story restoring-force characteristics were measured directly from on-line experimental tests. Experimental results show that relatively strong earthquake ground motion induced significant nonlinearity in the first-story sections for these frames with relatively stiff upper stories, which in turn affected the overall response computed for the integral structures.The results of hybrid experiments on repaired RC members with axial force effects and a summary of the investigation on damage of concrete bridges due to Loma Prieta Earthquake of October 17, 1989 in the U. S. are also included in the report of this study. Less

本文第一部分介绍了钢筋混凝土框架结构考虑三维组合应力影响的弹塑性地震反应分析的概念。采用基于应力-应变滞回关系的纤维模型，对钢筋混凝土单元的材料非线性进行了分析。混凝土和钢材本构关系的准确性进行了检查的分析和实验的非弹性弯矩曲率关系的比较。非线性地震反应的计算是通过数值逐步解决的动力运动方程。本文的第二部分介绍了基于子结构的在线混合试验方法在预应力混凝土斜拉桥塔架结构弹塑性抗震性能计算中的应用，并对该方法的应用进行了初步的探讨 ...更多信息 整体结构地震反应。结构的一部分，预计表现出强烈的非线性范围内进行实验测试，以确定其夹紧力特性，而结构的其余部分包括在模型中的分析。对一系列钢筋混凝土（R/C）多层剪力房屋框架进行了地震反应分析，其中第一层剪力特性是通过在线试验直接测量的。试验结果表明，相对较强的地震地面运动会引起上部结构刚度较大的框架结构的第一层截面出现明显的非线性，从而影响整体结构的整体反应计算结果，本文介绍了10月17日Loma普列塔地震后钢筋混凝土桥梁修复构件轴力效应的混合试验结果，并对10月17日Loma Prieta地震后钢筋混凝土桥梁的破坏情况进行了总结。1989年，美国。S.也包括在本研究报告中。少

项目成果

Ristic D.: "Inelastic Stress-Strain Based Sesimic Response Prediction of RC Structures Considering Dynamically Varying Axial Forces" Proceedings of 9th World Conference on Earthquake Engineering. 8. 531-536 (1988)

Ristic D.：“考虑动态变化轴向力的 RC 结构基于非弹性应力-应变的地震响应预测”第九届世界地震工程会议论文集。

家村浩和(他共著): "地震動・動的特性(動的解析と耐震設計第1巻)" 技報堂出版, 170 (1989)

Hirokazu Iemura（与他人合着）：《地震运动和动力特性（动力分析和抗震设计第1卷）》Gihodo Publishing，170（1989）

Tanzo, W., Yamada, Y., Iemura, H. and H. Yonezawa: "Analytical and Substructured On-line Hybrid Analysis of Inelastic R/C Frames" Proceedings of the 20th JSCE Earthquake Engineering Symposium- 1989, pp.449-452, 1989.

Tanzo, W.、Yamada, Y.、Iemura, H. 和 H. Yonezawa：“非弹性 R/C 框架的分析和子结构在线混合分析”第 20 届 JSCE 地震工程研讨会论文集 - 1989 年，第 449 页 -

伊津野和行 他: Natural Disaster Science. 9-2. 97-114 (1988)

Kazuyuki Itsuno 等人：自然灾害科学 9-2（1988）。

Yamada, Y., Iemura, H., Matsumoto, T., Ristic, D. and T. Takeda: "Stress-Strain Based Modelling of Inelastic Earthquake Response of RC Frame Structures with Varying Axial Forces" Proceedings of 9th World Conference on Earthquake Engineering, Vol.V, pp.411

Yamada, Y.、Iemura, H.、Matsumoto, T.、Ristic, D. 和 T. Takeda：“基于应力应变的 RC 框架结构随轴向力变化的非弹性地震响应建模”第九届世界地震会议论文集