Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
CONSTRUCTION METHOD OF BUOYANCY-TYPE BASE ISOLATED FOUNDATION STRUCTURE, AND BUOYANCY-TYPE BASE ISOLATED FOUNDATION STRUCTURE
PROBLEM TO BE SOLVED: To provide a construction method of a buoyancy-type base isolated foundation structure in which a frictional force is reduced by using buoyancy and a structure of permitting slippage is formed, and thereby the structure where the earthquake load higher than a setting level may not be transmitted to a construction can be formed to exhibit a superior base isolation effect.SOLUTION: A construction method of a buoyancy-type base isolated foundation structure is provided which includes: a step of excavating the ground and constructing a foundation pit 2; a step of disposing a construction 3 in the bottom face 2a of the foundation pit 2; and a step of storing a fluid 4 in the foundation pit 2. In the storage step of the fluid, a target value of an inertial force α acting on the construction 3 in an earthquake is set; the buoyancy V necessary for the construction 3 is calculated based on V=W-F/μ representing a relationship of a ground force N of the construction 3, a load W of the construction 3 and a horizontal force F(=m/α) to act on construction 3 in the earthquake; and a water-level of the fluid 4 is adjusted based on the calculated buoyancy V.SELECTED DRAWING: Figure 1
【課題】浮力を利用して摩擦力を低減しすべりを許容する構造とすることで、設定レベル以上の地震力が構造物に伝達されない構造となり、優れた免震効果を発揮することができる。【解決手段】地盤を掘削して基礎ピット２を構築する工程と、基礎ピット２の底面２ａに構造物３を配置する工程と、基礎ピット２内に流体４を貯留する工程と、を有し、流体の貯留工程では、地震時に構造物３に作用する慣性力αの目標値を設定し、構造物３の接地力Ｎと、構造物３の荷重Ｗと、地震時に構造物３に作用する水平力Ｆ（＝ｍ・α）と、の関係を示すＶ＝Ｗ−Ｆ／μに基づいて、構造物３に必要な浮力Ｖを算出し、算出された浮力Ｖに基づいて流体４の水位が調整される浮力式免震基礎構造の構築方法を提供する。【選択図】図１
CONSTRUCTION METHOD OF BUOYANCY-TYPE BASE ISOLATED FOUNDATION STRUCTURE, AND BUOYANCY-TYPE BASE ISOLATED FOUNDATION STRUCTURE
PROBLEM TO BE SOLVED: To provide a construction method of a buoyancy-type base isolated foundation structure in which a frictional force is reduced by using buoyancy and a structure of permitting slippage is formed, and thereby the structure where the earthquake load higher than a setting level may not be transmitted to a construction can be formed to exhibit a superior base isolation effect.SOLUTION: A construction method of a buoyancy-type base isolated foundation structure is provided which includes: a step of excavating the ground and constructing a foundation pit 2; a step of disposing a construction 3 in the bottom face 2a of the foundation pit 2; and a step of storing a fluid 4 in the foundation pit 2. In the storage step of the fluid, a target value of an inertial force α acting on the construction 3 in an earthquake is set; the buoyancy V necessary for the construction 3 is calculated based on V=W-F/μ representing a relationship of a ground force N of the construction 3, a load W of the construction 3 and a horizontal force F(=m/α) to act on construction 3 in the earthquake; and a water-level of the fluid 4 is adjusted based on the calculated buoyancy V.SELECTED DRAWING: Figure 1
【課題】浮力を利用して摩擦力を低減しすべりを許容する構造とすることで、設定レベル以上の地震力が構造物に伝達されない構造となり、優れた免震効果を発揮することができる。【解決手段】地盤を掘削して基礎ピット２を構築する工程と、基礎ピット２の底面２ａに構造物３を配置する工程と、基礎ピット２内に流体４を貯留する工程と、を有し、流体の貯留工程では、地震時に構造物３に作用する慣性力αの目標値を設定し、構造物３の接地力Ｎと、構造物３の荷重Ｗと、地震時に構造物３に作用する水平力Ｆ（＝ｍ・α）と、の関係を示すＶ＝Ｗ−Ｆ／μに基づいて、構造物３に必要な浮力Ｖを算出し、算出された浮力Ｖに基づいて流体４の水位が調整される浮力式免震基礎構造の構築方法を提供する。【選択図】図１
CONSTRUCTION METHOD OF BUOYANCY-TYPE BASE ISOLATED FOUNDATION STRUCTURE, AND BUOYANCY-TYPE BASE ISOLATED FOUNDATION STRUCTURE
浮力式免震基礎構造の構築方法、および浮力式免震基礎構造
TAJI YOICHI (Autor:in) / FUKUTAKE TAKEYOSHI (Autor:in) / HASEBE MASANOBU (Autor:in) / ASAKA MIHARU (Autor:in) / SHAMOTO YASUHIRO (Autor:in)
21.04.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
CONSTRUCTION METHOD OF BASE-ISOLATED FOUNDATION STRUCTURE
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