Study on Seismic Evaluation and Seismic Retrofit for Exposed Column Bases used in Gymnasiums

体育馆裸露柱基抗震评价及抗震改造研究

• 批准号: 12650575
• 负责人: TANAKA Tsuyoshi
• 金额: $ 2.24万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650575/
• 关键词: Seismic Retrofit; Existing Gymnasium; Steel Frame with Brace; Exposed Base Column; Post-Installed Anchor Bolt; Fracture of Anchor Bolt; Corn Failure; Effect of Retrofit; ブレース付き骨組; 鉄骨造体育館; 耐震診断; 柱脚; 構造実験; 後施工アンカー; 骨組数値解析; 極限解析

This report presents the results of experimental study on seismic retrofit for exposed column bases by post-installed anchors. Elasto-plastic behavior of exposed column bases and the effect of seismic retrofit are discussed. The test parameter is the number of the post-installed anchors. The test specimen is composed of the steel frame with the braces and the concrete footing beam. Three specimens are tested under horizontal load. The following conclusions can be made :1. The all specimens failed due to fracture in the threaded portion of the previous anchor bolts2. Cracks on the concrete footing beam were observed for the specimens with post-installed anchors. The cracks were caused by the corn failure of the post-installed anchors.3. For the post-installed anchors, the remarkable flexural deformation was observed. This flexural deformation deprived the bond stress between the post-installed anchors and the concrete beam.4. The evaluation for the tensile strength of column bases is available for the all specimens.5. The evaluation for the shear strength of column bases overestimates the test results.

该报告介绍了通过安装后的锚进行实验研究的实验研究结果。讨论了暴露柱底座的弹性行为和地震改造的效果。测试参数是后安装锚的数量。测试样品由带有牙套和混凝土基准梁的钢框架组成。在水平载荷下测试了三个样品。可以得出以下结论：1。所有标本由于上一个锚固螺栓的螺纹部分的断裂而失败。对于带有安装后锚的标本，观察到混凝土基础梁上的裂纹。裂缝是由后安装后锚的玉米破坏引起的。3。对于安装后的锚，观察到显着的弯曲变形。这种弯曲变形剥夺了后安装后的锚和混凝土梁之间的键应力。4。柱底座的拉伸强度的评估可用于所有标本5。对柱底部的剪切强度的评估高估了测试结果。

项目成果

RISA HATANAKA: "Study on Seismic Retrofit for Exposed Column Bases of Steel Frames with Braces - Part 1. Outline of Test"Summaries of Technical Papers of Annual Meeting AIJ - Structures III. 801-802 (2002)

RISA HATANAKA：“带有支撑的钢框架外露柱基的抗震改造研究 - 第 1 部分。试验大纲”年会 AIJ - Structures 技术论文摘要 III。

G.Y.Jin: "Behaviour of Exposed Type of Column Bases Subjected to Tensile Force"Proceedings of the 6^<th> Pacific Structural Steel Conference. 407-412 (2001)

G.Y.Jin：“受拉力作用下外露型柱基的行为”第六届太平洋结构钢会议论文集。

畑中 理沙: "ブレース付き鉄骨造骨組における露出柱脚の耐震補強に関する研究"日本建築学会近畿支部研究報告集. 第42号. 221-224 (2002)

Risa Hatanaka：“支撑钢框架中裸露柱基的抗震加固研究”日本建筑学会近畿分会研究报告第42. 221-224号（2002年）。

益居 綾: "ブレース付き鉄骨造骨組における露出柱脚の耐震補強に関する研究-その2 実験結果-"日本建築学会学術講演梗概集C-1. 構造III. 803-804 (2002)

增井彩：“支撑钢框架中裸露柱基的抗震加固研究 - 第 2 部分实验结果 -”日本建筑学会学术讲座摘要 C-1（2002 年）。

AYA MASUI: "Study on Seismic Retrofit for Exposed Column Bases of Steel Frames with Braces - Part 2. Test Result"Summaries of Technical Papers of Annual Meeting AIJ - Structures III. 803-804 (2002)

AYA MASUI：“带有支撑的钢框架外露柱基的抗震改造研究 - 第 2 部分。测试结果”年会 AIJ - Structures 技术论文摘要 III。