Development of Practical Method for Reliability-based Seismic Design and Assessment of Building Frames based on Maximum Drift

基于可靠性的抗震设计实用方法的开发和基于最大位移的建筑框架评估

• 批准号: 17560500
• 负责人: MORI Yasuhiro
• 金额: $ 1.92万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560500/
• 关键词: Structural Reliability; Seismic Design; Performance-based Design; Maximum Drift; Seismic Hazard; Accuracy of Estimation; Pushover; SMRF

Predictors of seismic structural demands such as inter-story drift angles that are less time-consuming than nonlinear dynamic analysis (NDA) have proven useful for structural performance assessment and for design. Several techniques have been proposed using the results of a nonlinear static pushover analysis. These techniques often use the maximum response computed via NDA of the inelastic oscillator that is "equivalent" to the original frame. In practice, it is desirable to estimate the response approximately via a simpler method such as an equivalent linearization technique and uniform hazard spectra at the site. In reliability-based seismic performance assessment and design of a structure, it is necessary to consider the level of accuracy of the techniques used in the assessment. A simple technique is proposed in this paper to estimate the r-year return period value of the inter-story drift angle of a moment resisting steel frame using a single uniform hazard spectrum of the r-year return period displacement of an elastic oscillator. The structural demand is estimated using the safety factors evaluated taking the variability in the seismic hazard, accuracy of the techniques for estimating structural response, and the structural performance level into account. The accuracy of the technique is investigated relative to the structural demand estimated more directly from the probability distributions of the seismic hazard.

与非线性动态分析（NDA）相比，较耗时的地震结构需求的预测因素已被证明对结构性能评估和设计有用。使用非线性静态推杆分析的结果提出了几种技术。这些技术通常使用通过非弹性振荡器的NDA计算出的最大响应，该响应与原始帧“等效”。实际上，希望通过更简单的方法（例如等效线性化技术和均匀的危险光谱）估算响应。在基于可靠性的地震性能评估和结构设计中，有必要考虑评估中使用的技术的准确性水平。在本文中提出了一种简单的技术，以估计使用弹性振荡器的R年返回周期位移的单个均匀危险频谱，以估算矩稳定钢框架的R年间漂移角度。使用评估的安全因子来估计结构需求，从而考虑到地震危险的可变性，估计结构响应的技术的准确性以及结构性绩效水平。相对于地震危害的概率分布，研究了该技术的准确性。

项目成果

Reliability Assessment of Seismic Performance Considering Accuracy of Response Estimation

考虑响应估计精度的抗震性能可靠性评估

• 发表时间: 2006
• 期刊: Summary of Technical Papers of Annual Meeting, AIJ, B-I
• 作者: Maruyama;Y.;Y.Mori
• 通讯作者: Y.Mori

Predictors of Seismic Demands in SMRF Buildings Considering Inelastic Fist-Mode Displacement

考虑非弹性拳头模式位移的 SMRF 建筑抗震需求预测

• 发表时间: 2005
• 期刊: Structural Safety and Reliability
• 作者: Mori;Y.;T.Yamanaka;N.Luco;C.A.Cornell
• 通讯作者: C.A.Cornell

Simple Predictor of Maximum Displacement of SMRF Buildings-Backbone Curve of Equivalent SDOF system and Lateral Load Pattern for Pushover Analysis.

SMRF 建筑物最大位移的简单预测器 - 等效 SDO​​F 系统的骨干曲线和用于 Pushover 分析的横向载荷模式。

• 发表时间: 2005
• 期刊: Journal of Structural and Construction Engineering, AIJ No.597
• 作者: Mori;Y.;T.Yamanaka
• 通讯作者: T.Yamanaka

A Preliminary Study on Seismic Design Method Considering the Accuracy of Equivalent Linearization

考虑等效线性化精度的抗震设计方法初探

• 发表时间: 2005
• 期刊: Summary of Technical Papers of Annual Meeting, AIJ, B-I
• 作者: Maruyama;Y.;Y.Mori
• 通讯作者: Y.Mori

鋼構造骨組の変位応答評価法-等価1質点系モデルの復元力特性とPushover解析における外力分布形状-

钢结构框架位移响应评价方法-等效一质量模型的恢复力特性及推覆分析中的外力分布形状-

• 发表时间: 2005
• 期刊: 日本建築学会構造系論文集 第597号
• 作者: 森 保宏;山中貴司
• 通讯作者: 山中貴司