SIMPLIFIED DYNAMIC ANALYSIS TO HIGH-RISE STRUCTURE WITH LOCAL DAMEGES

高层结构局部损伤的简化动力分析

• 批准号: 13650644
• 负责人: TAKABATAKE Hideo
• 金额: $ 1.98万
• 依托单位: Kanazawa Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650644/
• 关键词: impact; failure; stress wave; earthquake; structure; transient analysis; dynamic behavior; numerical computation; 地震被害; 兵庫県南部地震; 耐震設計; 提灯座屈; 構造物と地盤の連成効果; 跳び石現象; 鋼構造; 鋼製橋脚の座屈

(1)The damage of Ashiyahama Residential building due to Kobe Earthquake is studied and the following results is obtained :i)The axial breakage of heavy column at the first storey is occurred by the large axial and bending moment. Since the location of plastic hinges is closely related to actual failure, it is necessary to avoid concentration in the distribution of plastic hinges.ii)Earthquake wave being near source brings significant damage to structure by the rapid variation of energy. The failure at welding point occurs from the rapid variation of energy.iii)The fracture propagating through column and brace of Ashiyahama Residential building is occurred by concentrated stress produced by connecting the brace to column without gusset plate.(2) The simplified analysis used the extended rod theory developed here is clarified to express well the dynamic behavior of mega structure such as Ashiyahama Residential building. The dynamic interaction problem between structure and soil states in … More creases the damage due to earthquake. The amplification of earthquake wave acting on engineering foundation is approximately the same as the effect used Gs given by a bulletin.(3)The phenomenon of bulge buckling at the mid-height of steel bridge piers due to the Kobe Earthquake discussed from the numerical computation. The bulge buckling is closely related to rapid variation in the total strain energy of an element due to step-wise variable thickness. The buckling strength determined from the numerical computation is 1.06 times the theoretical strength for elastic-plastic buckling and 0.18 times for elastic buckling. Similar bulge buckling also occurs in a uniform cylindrical shell subjected to the same earthquake wave, but near the base instead of the mid-height.. The simplified theory governing the phenomenon of bulge buckling at the mid-height is presented from the extended rod theory.(4)The upthrow of boulders frequently observed near the source area of a shallow strong earthquake is examined by considering waves, which emanate deep in the ground, propagate through the ground and boulder, and reflect back to the ground, causing interaction between the ground and the boulder. The upthrow of the boulder takes place due to resonance in the response of the system of the ground and boulder to the external wave input. Thus, the magnitude of earthquake may be estimate from the upthrow of the boulder. Less

（1）对芦屋滨住宅楼在科比地震中的破坏进行了研究，得出了以下结论：（1）第一层重柱的轴向破坏是由大的轴向弯矩和弯矩引起的;由于塑性铰的位置与实际破坏密切相关，因此在塑性铰的分布上应避免集中。2）近源地震波能量的快速变化会对结构产生显著的破坏。3）芦屋滨住宅楼柱与支撑的断裂是由于支撑与柱之间无节点板连接产生的应力集中而引起的。(2)阐明了采用本文发展的延伸杆理论进行简化分析，以较好地表达芦屋滨住宅楼这类巨型结构的动力特性。考虑了结构与土的动力相互作用问题， ...更多信息 增加了地震造成的破坏。地震波作用在工程地基上的放大作用与公告中给出的GS效应大致相同。（3）从数值计算的角度讨论了科比地震作用下钢桥墩中高处的鼓包屈曲现象。胀形屈曲与单元总应变能的快速变化密切相关，这是由于单元的厚度呈阶梯状变化。由数值计算确定的屈曲强度是弹塑性屈曲理论强度的1.06倍和弹性屈曲理论强度的0.18倍。在相同的地震波作用下，均匀圆柱壳也会发生类似的鼓包屈曲，但鼓包屈曲发生在底部附近而不是中间高度。本文从延伸杆理论出发，提出了控制中高处鼓包屈曲现象的简化理论。（4）通过考虑从地下深处发出的波，通过地面和巨石传播，并反射回地面，引起地面和巨石之间的相互作用，研究了在浅源强地震震源区附近经常观察到的巨石的上抛。由于地面和巨石系统对外部波输入的响应中的共振，巨石的上抛发生。因此，地震的震级可以从巨石的上抛来估计。少

项目成果

Tetsuya Satoh, Hideo Takabatake: "The expanded theory is applied to mega structure and base-isolated structure( in Japanese)"Panel Discussion of Annual meeting of Architectural Institute of Japan. 225-226 (2003)

佐藤哲也、高畠秀夫：“扩展理论应用于巨型结构和隔震结构（日语）”日本建筑学会年会小组讨论。

Hideo Takabatake: "Discussion of simultaneous failure of column and brace (in Japanese)"Annual meeting of Architectural Institute of Japan. 371-372 (2002)

高畠秀夫：“柱与支撑同时失效的讨论（日语）”日本建筑学会年会。

Hisanori Sahashi, Hideo Takabatake: "Bulge Buckling at the Midheight of Steel Column (in Japanese)"Annual meeting of Architectural Institute of Japan. 373-374 (2002)

Hisanori Sahashi、Hideo Takabatake：“钢柱中高处的膨胀屈曲（日语）”日本建筑学会年会。

佐藤 鉄也, 高畠 秀雄: "拡張した棒材理論のメガストラクチャーおよび免震構造への応用"日本建築学会大会学術講演梗概集. 241-242 (2003)

Tetsuya Sato、Hideo Takabatake：“膨胀杆理论在巨型结构和基础隔离结构中的应用”日本建筑学会会议记录 241-242（2003 年）。

Hideo Takabatake, Taijirou Nonaka: "Numerical study of Ashiyahama residential building damaged in the Kobe Earthquake"Earthquake Engineering and Structural Dynamics. Vol.30 No.6. 879-897 (2003)

Hideo Takabatake、Taijirou Nonaka：《神户地震中芦屋浜住宅楼受损的数值研究》地震工程与结构动力学。