SEISMIC PERFORMANCE EVALUATION AND RETROFIT FOR STRUCTURAL CONNECTIONS OF EXISTING STEEL BUILDINGS

既有钢结构建筑结构连接的抗震性能评价及改造

• 批准号: 16360277
• 负责人: SUITA Keiichiro
• 金额: $ 9.54万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360277/
• 关键词: tall building; steel structure; moment connection; plastic deformation capacity; welding; long-period ground motion; existing building; full-scale loading test; 耐震性能; 耐震補強; 非破壊検査

1.Seismic performance of an existing steel building constructed in 1969 was experimentally evaluated. The inspection was focused on strength and deformation capacity of moment connections and column base connections jointed by fillet welding. Based on hysteresis relations obtained from dynamic loading test, the seismic responses and performance of the overall building was analytically evaluated.2.Seismic performance of three existing steel buildings constructed in 1980s were experimentally evaluated. The research was focused on through diaphragm type moment connections composed of square tube columns and wide flange beams joined by complete joint penetration welding. Inspections on welding revealed characteristics of welding defects and the effect on deformation capacity of moment connections by dynamic loading tests.3.Full-scale dynamic tests on restrained brace type dampers subjected long-period ground motions were conducted to evaluate deformation capacity of hysteretic dampers. The test results revealed sufficient capacity of dampers to retrofit of existing tall buildings constructed in early period.4.Seismic performance of moment connections composed of large section members adopted for tall buildings was experimentally examined. Built-up Square tube columns fabricated by electro-slag welding and large depth beams (800mm and 1000mm) were used to reproduce the moment connections in 1970s. The deformation capacity of the beam-column subassemblies were experimentally investigated.

1.对一座建于1969年的既有钢结构建筑的抗震性能进行了试验评估。重点对角焊连接的抗弯节点和柱脚节点的强度和变形能力进行了检测。基于动载试验得到的滞回关系，对整体结构的地震反应和抗震性能进行了分析评价。2.对3栋80年代建成的既有钢结构建筑进行了抗震性能试验评价。研究了方钢管柱与宽翼缘梁之间采用全节点熔透焊连接的贯通式节点。通过动载试验，对焊接缺陷进行了检测，揭示了焊接缺陷的特征及其对节点变形能力的影响。3.对约束支撑型阻尼器进行了足尺长周期地震动试验，以评估滞回耗能器的变形能力。试验结果表明，阻尼器对早期建成的既有高层建筑的抗震加固具有足够的能力。4.对高层建筑中采用的大截面构件组成的弯矩连接的抗震性能进行了试验研究。采用电渣焊装配式方钢管柱和大截面梁（800mm和1000mm），再现了70年代的弯矩连接。对梁柱节点的变形能力进行了试验研究。

项目成果

高度成長期に建設された超高層建物の長周期地震動に対する応答特性,(想定南海トラフ地震の関西地域における予測波を用いた検討)

经济高增长时期建造的高层建筑对长周期地震的响应特性（利用关西地区假想南海海槽地震的预测波进行研究）

• 发表时间: 2007
• 期刊: 日本建築学会構造系論文集 第611号
• 作者: 吹田啓一郎;北村有希子;他3名
• 通讯作者: 他3名

Seismic Response of High-Rise Buildings Constructed in 1970s Subjected to Long-Period Ground Motions, Using Predicted Ground Motions from Hypothetical Nankai Trough Earthquakes in Kansai Area

利用关西地区假想的南海海槽地震预测的地震动，研究 1970 年代建造的高层建筑在长期地震动作用下的地震响应

• 发表时间: 2007
• 期刊: Journal of Structural and Construction Engineering(Architechtural Institute of Japan) No.611
• 作者: Keiichiro Suita;Yukiko Kitamura;Tomonori Goto;Tomotaka Iwata;Katsuhiro Kamae
• 通讯作者: Katsuhiro Kamae

1980年代初頭に建設された既存鉄骨建物の溶接品質と現有耐震性能

20世纪80年代初建造的现有钢结构建筑的焊接质量和现有抗震性能

• 发表时间: 2004
• 期刊: 日本建築学会構造系論文集 第586号
• 作者: 吹田啓一郎;佐藤有希;長田暢浩
• 通讯作者: 長田暢浩

Welding Quality and Seismic Performance of Existing Steel Buildings Constructed in Early 1980s

20世纪80年代初现有钢结构建筑的焊接质量和抗震性能

• 发表时间: 2004
• 期刊: Journal of Structural and Construction Engineering(Architectural Institute of Japan) No.586
• 作者: Keiichiro Suita;Yuki Satoh;Nobuhiro Nagata
• 通讯作者: Nobuhiro Nagata

1969年に建設された隅肉溶接による既存鉄骨骨組の耐震性能

1969年建造的现有角焊钢框架的抗震性能

• 发表时间: 2007
• 期刊: 日本建築学会構造系論文集 第612号
• 作者: 吹田啓一郎;赤澤資貴;山田祥平
• 通讯作者: 山田祥平