2010 Fiscal Year Final Research Report

An experimental study on a lateral frequency dependence of the base foundation with non-linear deformation

Research Project

Project/Area Number	21760428
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Building structures/materials
Research Institution	Building Research Institute
Principal Investigator	KABEYASAWA Toshikazu Building Research Institute, 構造研究グループ, 研究員 (10533953)
Project Period (FY)	2009 – 2010
Keywords	基礎入力逸散 / 錘衝突試験 / 地盤非線形性 / 地盤周波数依存性
Research Abstract	Lateral loading test on spread foundation in an existing school building was conducted in April 2010. The school building was three-story reinforced concrete structure. A part of the building was separated through the foundation to the roof level, to which static or impact load was applied horizontally at the base foundation level. The static and dynamic relations of the lateral load and the relative displacement at the base level are compared and analyzed with interaction spring model based on another boring investigation on soil. The equivalent damping factor of the test result was larger than analytical estimate.

(4 results)