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骨組構造用の鋼および鋼・コンクリート合成耐震要素の開発

框架结构钢及钢-混凝土组合抗震构件的研制

基本信息

批准号：
09555176
负责人：
MATSUI Chiaki
金额：
$ 4.74万
依托单位：
KYUSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

Steel Bearing Wall with Slits is an earthquake-resisting elements for building structures, that is expected to have three remarkable features ; 1) ductile behavior, 2) simple evaluating and adjustment method of strength and the stiffness, and 3) simple fabrication process. The feature 2) is attributed to the parts between the slits of the plate (called Column parts), behaving like columns, leading to the ductile performance of the wall as a whole.3 years research work to develop this new earthquake resisting element has provided the following results ;・the performance of the bearing wall as a unit was made clear, and the strength and stiffness evaluating formulae are established.・Strength & stiffness manipulating method with two parameter (α & β) depending on column parts' property was established.・Out-of-plane behavior, that leads to degradation of strength and unstable behavior of wall, was investigated, and design condition of the wall, in case stiffened by steel bar is made clear.・Wall with design condition not covered by above condition for steel stiffness, can be made usable when concrete panels are applied as out-of-plane stiffener.・Behavior of this bearing wall installed in a steel frame was investigated, and the difference of it from the behavior of the wall as a unit was made clear.・Improvement of performance of steel frame by installing this wall was made clear.・Analysis of unit-wall and wall installed in frame was carried out using FEM, and the stress occurring in the joint bolts and stress distribution of the frame is examined.

开缝钢承重墙是一种用于建筑结构的抗震构件，预计具有三个显著特点；1)延性；2)强度和刚度的简单评估和调整方法；3)制作工艺简单。这种特征2)归因于板缝之间的部分（称为柱部分），它们的行为类似于柱，导致整个墙的延展性。这种新型抗震元件经过3年的研究，取得了以下成果：·明确了承重墙作为一个整体的性能，建立了强度和刚度的评价公式。·根据柱件性质建立了具有两个参数（α和β）的强度和刚度操纵方法。·对导致墙体强度退化和失稳的面外行为进行了研究，明确了钢筋加筋时墙体的设计条件。·设计条件不包括上述钢刚度条件的墙壁，可在应用混凝土板作为面外加强筋时使用。·对安装在钢框架中的承重墙的行为进行了研究，并明确了它与作为一个整体的墙的行为的区别。通过安装这种墙来改善钢框架的性能是明确的。·采用有限元法对单元墙和安装在框架内的墙进行了分析，并对连接螺栓产生的应力和框架的应力分布进行了分析。