New evaluation method of seismic resistant capacity and reexamination of earthquake resistant design standard for wooden structures

抗震能力评价新方法及木结构抗震设计标准复审

• 批准号: 11555151
• 负责人: NAKAMURA Takeshi
• 金额: $ 1.22万
• 依托单位: Kyoto Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555151/
• 关键词: wooden structure; hysteretic restoring-force characteristics; seismic resistant capacity; ductility factor; coefficient of effective wall-length; braced wall; conventional construction; 耐震設計; 在来型工法; 筋かい形式の工法; 枠組壁工法; 木質構造; 従来型工法

The following results (1. 〜 5.) are shown in this research.1. The result of a series of alternating cyclic loading tests on shear wall elements of wooden structure is presented. Skeleton curves of hysteretic restoring force characteristics on various wall elements are derived by the test results. And some coefficients, such as yield strength, ultimate strength, ductility ratio, structural characteristic factors and effective wall length, are estimated on various wall elements.2. The same tests are conducted on half size model of continuous shear wall elements of wooden structure. The total strength and the collapse behavior of continuous models must be estimated by adding each result of the above-mentioned independent wall element together.3. The same tests are conducted on wooden frameworks which are reinforced at the joints of beam and column by particular tool. These frameworks are not yet authorized as earthquake resistant wall in Japanese building standard, but the result of the tests confirmed that they are strong enough and are effective enough to resist earthquakes.4. Based on the above-mentioned results, the hysteretic restoring-force characteristics of wooden structure are constructed. The earthquake responses of wooden structures which have the above-mentioned characteristics are calculated. It is shown that the maximum displacements of various elastic-plastic single degree models of traditional Japanese temples under the same earthquake are nearly equal as long as these elastic parts are same.5. The moment-resistant characteristic tests of Utinori-Nuki Joint in the Japanese traditional wooden frame are conducted. The appearance of moment-rotation curve in small deformation region is very different from that in large deformation region. It can be regarded that the curve in large deformation region consists of three parts. The compressive strain was clearly observed in the wedge of the joint.

本研究得到以下结果(1.～5.)： 1．给出了木结构剪力墙构件的一系列交替循环加载试验的结果。根据试验结果推导出各种墙体单元的滞回恢复力特性骨架曲线。并估算了各种墙体单元的屈服强度、极限强度、延性比、结构特征因子和有效壁长等系数。 2．对木结构连续剪力墙构件的半尺寸模型进行了相同的试验。连续模型的总强度和倒塌行为必须通过将上述独立墙单元的各个结果相加来估计。3．在用特定工具在梁和柱的连接处加固的木框架上进行了相同的测试。这些框架在日本建筑标准中尚未被认可为抗震墙，但测试结果证实它们足够坚固且足以有效地抵抗地震。 4．基于上述结果，构建了木结构的滞回恢复力特性。计算了具有上述特征的木结构的地震反应。结果表明，只要弹性部件相同，日本传统寺庙的各种弹塑性单度模型在同一地震作用下的最大位移几乎相等。 5．对日本传统木框架中的Utinori-Nuki Joint进行了抗弯矩特性测试。小变形区域的力矩-转角曲线与大变形区域的力矩-转角曲线的表现有很大不同。可以认为大变形区域的曲线由三部分组成。在接头的楔形处可以清楚地观察到压缩应变。

项目成果

山崎正博: "接合部履歴特性を考慮した木造平面架構の大たわみ解析法"2000年度大会(東北)学術講演梗概集. C-1分冊. 101-102 (2000)

Masahiro Yamazaki：“考虑联合历史特征的平面木框架的大挠度分析方法”2000年会议（东北）学术讲座摘要第101-102卷（2000年）。

Masahiro,YAMAZAKI: "Numerical Method Introducing Mechanical Properties of Semi-rigid Joints for Large Deflection Behavior of Planar Wooden Frame"Summaries of Technical papers of Annual Meeting Architectural Institute of Japan (AIJ). C-1 Structure-II. 101-

Masahiro、YAMAZAKI：“Numerical Method Introducing Mechanical Properties of Semi-rigid Joints for Large Deflection Behaviour of Planar Wooden Frame”日本建筑学会年会（AIJ）技术论文摘要。

北尾聡子: "木造建物の履歴復元力特性に関する実験的研究-在来木造軸組の静的水平加力試験-"構造工学論文集. Vol.48B(掲載決定). (2002)

北尾佐藤子：“木结构建筑滞回弹特性的实验研究——传统木框架的静态水平荷载试验”《结构工程杂志》第48B卷（出版决定）。

Satoko, KITAO: "EXPERIMENTAL STUDY ON HYSTERETIC RESTORING-FORCE CHARACTERISTICS OF WOODEN STRUCTURE - Alterrating cyclic loading tests on shear wall elements of woodenhouses -"Jornal of Structural Eng.. Vol.48B, (in printing). (2002)

Satoko, KITAO：“木结构迟滞恢复力特性的实验研究 - 木屋剪力墙构件的改变循环载荷测试 -”结构工程杂志第 48B 卷（印刷中）。

Yuko MIYAKE: "Full-Scale Vibration Tests of Traditional Wooden Frame Part-8 Detaild Behavior(1) Relative Rotation between Column and Horizontal Members"Summaries of Technical papers of Annual Meeting Architectural Institute of Japan (AIJ). C-1 Structure-I

Yuko MIYAKE：“传统木框架的全尺寸振动测试第8部分详细行为（1）柱与水平构件之间的相对旋转”日本建筑学会（AIJ）年会技术论文摘要。