Maximun Performance Design of Building Strueture-Uncertain Ground Systems via Hybrid Inverse Formulation

通过混合反演公式实现建筑结构不确定地面系统的最大化性能设计

• 批准号: 07650659
• 负责人: TAKEWAKI Izuru
• 金额: $ 1.34万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650659/
• 关键词: Inverse Problem; Hybrid Inverse Problem; Stracture-Grand System; Reliability-Based Design; Performance-Based Design; Design Earthquakes; 構造物-地盤連成来; 一信頼性設計

The purpose of this project is to develop a new reliability-based design method for building structures supported by uncertain grounds. Structural performances are maximized through trade-off with design cost. The following results have been obtained in this project.1. A new seismic stiffness design method has been developed for a shear building-pile-soil system. The story stiffnesses of theshear building have been determined via hybrid inverse formulation so that the mean peak interstory drifts of the shear building under spectrum-compatible design earthquakes defined at the bedrock would attain the specified values. In this method the story stiffnesses of the shear building have been derived from the governing equations of undamped lowest vibration and the mean peak responses have been evaluated by the response spectrum method based on complex eigenvalue analysis.2. This solution procedure has been shown to be applicable to the problem of finding the story stiffnesses of the shear building such that the mean peak+one sigma values of mean peak interstory drifts resulting from the variability of ground stiffnesses would be equal to or just within the specified values.3. Design examples have been presented to demonstrate the usefulness of this design method. Monte Carlo simulation has been performed to investigate the accuracy of this design method. Finally time-history analysis has been performed to demonstrate the validity and accuracy of this design method.4. A new method for performance-based design has been proposed in which structural performances are maximized through trade-off with design cost.

该项目的目的是为不确定地基支持的建筑结构开发一种新的基于可靠性的设计方法。通过与设计成本的权衡来最大化结构性能。本课题取得了以下成果： 1．针对建筑-桩-土剪力系统开发了一种新的抗震刚度设计方法。通过混合反演公式确定了剪力建筑的层刚度，使得在基岩处定义的谱兼容设计地震下剪力建筑的平均峰值层间位移达到规定值。该方法由无阻尼最低振动控制方程推导出剪力建筑的层刚度，并采用基于复特征值分析的响应谱法评估平均峰值响应。 2．该求解过程已被证明适用于寻找剪力建筑的楼层刚度的问题，使得由地面刚度变化引起的平均峰值层间位移的平均峰值+1西格玛值将等于或恰好在指定值.3.设计实例已经展示了这种设计方法的实用性。蒙特卡洛模拟已被执行以研究该设计方法的准确性。最后通过时程分析验证了该设计方法的有效性和准确性。 4．提出了一种基于性能的设计新方法，通过权衡设计成本来最大化结构性能。

项目成果

I.Takewaki: "Efficient Reaesign of Damped Struotorel Systims for Target Tramsfor Functins" Compatr Methels in Applied Medramis and Engineering. 147・314. 275-286 (1997)

I.Takewaki：“针对功能的目标传输的阻尼 Struotorel 系统的有效重新设计”Compatr Methels，《应用 Medramis 和工程》147・314（1997 年）。

I. Takewaki: "Design-Oriented Approximate Bound of Inelastic Responses of a Structure under Seismic Loading" Computers & Structures. (掲載決定). (1996)

I. Takewaki：“地震荷载下结构的非弹性响应的设计导向近似边界”计算机与结构（1996 年出版）。

I.Takewaki: "Incremental Inverse Eigenmode Problem for Performance-Based Structural Redesign" Finite Elements in Analysis and Design. 27.2. 175-191 (1997)

I.Takewaki：“基于性能的结构重新设计的增量逆本征模问题”分析和设计中的有限元。

I.Takewaki: "Efficient Redesign of Damped Structural Systems for Target Transfer Functions" Computer Methods in Applied Mechanics and Engineering. 147.3/4. 275-286 (1997)

I.Takewaki：“针对目标传递函数的阻尼结构系统的有效重新设计”应用力学和工程中的计算机方法。