Development of Damage-based Structural Performance Evaluation Framework for RC Members

RC 构件基于损伤的结构性能评估框架的开发

• 批准号: 17560519
• 负责人: SHIRAI Nobuaki
• 金额: $ 2.13万
• 依托单位: Nihon 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 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17560519/
• 关键词: Building Materials and Structures; Seismic Performance; Reinforced Concrete; Performance Evaluation; Damage Evaluation; Finite Element Method; Crack; Image measurement; 耐震; 耐震性能評価; グラウト; 非破壊検査

In order to accomplish three objectives ; (1) establishment of the damage evaluation method in RC members, (2) establishment of the numerical analysis procedure for evaluating structural performance of RC members, and (3) experimental and analytical verification of the mechanical performance in repair and/or retrofitting materials, the research effort over three fiscal years from 2005 to 2007 was made and the following were obtained :1) The gravity load collapse test of RC columns was carried out, and crack widths and deformations were measured by applying the image processing as well as the digital recording of failure process images in RC column. These data were useful to relate crack widths to deformation of the column. Furthermore, the procedure for evaluating the residual seismic performance of the column in terms of measured crack widths was developed. Thus, if residual crack widths of the damaged column could be measured, it becomes possible to estimate the residual and maximum … More deformations, and this leads to an easy assessment of the residual seismic performance. Further research is needed to apply the developed method to the column failing in shear.2) The 3-D nonlinear finite element analyses on various RC components were carried out as well as the investigation of the torsional behavior due to eccentricities, and the numerical analysis model for evaluating the structural performance was developed. Furthermore, the effect of the structural performance of components on behavior of the overall structure, including the effect of the nonstructural components and the torsion, were studied.3) The mechanical properties of the grout to be used as the repair and/or retrofitting materials were experimentally verified. As an example, the strengthening method by the steel bracing was selected as the target of study. The specimens, which model the seismic strengthening connection, were made, and the shear sliding behavior between concrete and grout or between grout and steel frame was experimentally investigated. Furthermore, the numerical analysis model for the connection was developed. Less

为了实现三个目标;（1）建立钢筋混凝土构件的损伤评估方法，（2）建立钢筋混凝土构件结构性能评估的数值分析程序，（3）对修复和/或加固材料的力学性能进行实验和分析验证，本研究从2005年至2007年进行了三个财年的研究工作，取得了以下成果：1）进行了钢筋混凝土柱的重力荷载倒塌试验，并应用图像处理技术和数字化记录钢筋混凝土柱的破坏过程图像，测量了裂缝宽度和变形。这些数据有助于将裂缝宽度与柱的变形联系起来。此外，剩余的抗震性能的柱在测量裂缝宽度的评估程序开发。因此，如果可以测量受损柱的残余裂纹宽度，则可以估计残余裂纹宽度和最大裂纹宽度。 ...更多信息 变形，这导致剩余抗震性能的简单评估。对各种钢筋混凝土构件进行了三维非线性有限元分析，研究了偏心距对构件扭转性能的影响，建立了评价构件性能的数值分析模型。此外，还研究了构件的结构性能对整体结构性能的影响，包括非结构构件和扭转的影响。3）对灌浆材料的力学性能进行了试验验证。以钢支撑加固法为例进行了研究。制作了模拟抗震加固节点的试件，进行了混凝土与砂浆、砂浆与钢框架之间的剪切滑移性能试验研究。建立了该节点的数值分析模型。少

项目成果

グラウト代替材としての繊維補強モルタルの開発と性能評価実験(そのD繊維補強モルタルの調合設計

纤维增强砂浆替代灌浆料的研制及性能评价试验（纤维增强砂浆配合比设计）

• 发表时间: 2008
• 作者: 宮崎;國本;増田;田嶋;白井;横内;北嶋
• 通讯作者: 北嶋

画像計測法を用いた鉄筋コンクリート造柱部材の残存耐震性能評価ひび割れ幅に基づく残存耐震性能評価

图像测量法评价钢筋混凝土柱构件残余抗震性能 基于裂缝宽度评价残余抗震性能

• 发表时间: 2008
• 作者: 石森;今井;尾崎;田嶋;白井
• 通讯作者: 白井

Elasto-Plastic Torsional Behavior of RC Framed Structures by 3-D FEM (Part 1) Dynamic Analysis of RC Framed Structure with Eccentricity under Earthquake Excitations

基于 3-D FEM 的 RC 框架结构弹塑性扭转行为（第 1 部分）地震激励下偏心 RC 框架结构的动力分析

• 发表时间: 2008
• 作者: Hashimoto;Adachi;Tajima;Shirai
• 通讯作者: Shirai

Elasto-Plastic Torsional Behavior of RC Framed Structures by 3-D FEM (Part 2) Static Parametric Analyses of Model Framed Structures with Strength Eccentricities

通过 3-D FEM 实现 RC 框架结构的弹塑性扭转行为（第 2 部分）具有强度偏心度的模型框架结构的静态参数分析

• 发表时间: 2008
• 作者: Adachi;Hashimoto;Tajima;Shirai
• 通讯作者: Shirai

3次元FEMによるRC造柱梁接合部に関する解析モデル確立へのアプローチ(その1)実験概要と基本解析モデルの確認

使用 3D FEM 建立 RC 柱梁节点分析模型的方法（第 1 部分）实验概述和基本分析模型的确认

• 发表时间: 2007
• 作者: 白井;田嶋;橋本
• 通讯作者: 橋本