Development of A Computer Program to Calculate Inelastic Earthquake Response of Reinforced Concrete Structures with Variation of Axial Force

计算钢筋混凝土结构随轴力变化的非弹性地震响应的计算机程序的开发

• 批准号: 59850081
• 负责人: IEMURA Hirokazu
• 金额: $ 4.93万
• 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: 1984
• 资助国家: 日本
• 起止时间: 1984 至 1985
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59850081/
• 关键词: Program; Earthquake Response; Reinforced Concrete structures; Constitutive Laws; Axial force; プログラム

In this project, a new mathematical model for nonlinear hysteretic response prediction of reinforced concrete structural sections and reinforced concrete integral structures under time-dependent arbitrary loads, inculding the effects of variation of axial forces, is presented. The applicability of the model is demonstrated by comparing the theoretical and experimental results obtaind by the newly developed Hybrid Loading System for Earthquake Response Computation (HYLSER). Because the model is based on formulated stress-strain relations for the constituent discretized element materials, the proposed analytical model is applicable for prediction of nonlinear hysteretic response of reinforced concrete, composite and steel structures under time-dependent static, as well as seismic, loads.From the agreement obtained between experimental and theoretical results, it is concluded that the mathematical model proposed herein canbe implemented for structural refined modeling; then the prediction of nonlinear hysteretic seismic response of integral structures can be done on the basis of direct integration of the dynamic equations of motion. Analytical procedure for the solution of such nonlinear dynamic problems has been established, and is being used to extend the developed computer program NORAI for realistic nonlinear seismic response prediction.

在该项目中，提出了一种新的数学模型，用于预测随时间变化的任意荷载下钢筋混凝土结构截面和钢筋混凝土整体结构的非线性滞回响应，包括轴力变化的影响。通过比较新开发的地震响应计算混合加载系统（HYLSER）获得的理论和实验结果，证明了该模型的适用性。由于该模型基于组成离散元材料的应力-应变关系，因此所提出的分析模型适用于预测钢筋混凝土、复合材料和钢结构在随时间变化的静载荷和地震载荷下的非线性滞回响应。根据实验结果与理论结果之间的一致性，可以得出结论，本文提出的数学模型可以用于结构精化 建模；然后可以在运动动力学方程直接积分的基础上预测整体结构的非线性滞回地震响应。解决此类非线性动力问题的分析程序已经建立，并用于扩展已开发的计算机程序 NORAI，以进行实际的非线性地震响应预测。

项目成果

Proceedings of 8th World Conference on Earthquake Engineering. (1984)

第八届世界地震工程会议论文集。

Final report of the International Association for Bridge and Structural Engineering. (1984)

国际桥梁与结构工程协会的最终报告。

Proceedings of 8th European Conference on Earthquake Engineering. (1986)

第八届欧洲地震工程会议论文集。

Firal Report of the International Association for Bridge and Structural Engineering. (1984)

国际桥梁与结构工程协会的初步报告。

土木学会論文集. 第356号-I-3. (1985)

日本土木工程师学会论文集，第 356-I-3 号（1985 年）。