A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
TIMBERING STRUCTURE AND TIMBERING METHOD FOR STRUCTURE
PROBLEM TO BE SOLVED: To suppress displacement in a lateral direction when a lateral-direction load is exerted due to an earthquake and other reasons, and suppress conveyance of a gradual change in a load caused by tilting of an earth retaining wall and other reasons, for a structure erected on a bottom surface surrounded by the earth retaining wall.SOLUTION: In an underpinning method, a support post 200a erected on an excavated bottom surface for supporting an existing structure and an earth retaining wall 300a are expanded/contracted by supplying/discharging a liquid from a cylinder 571, and are connected through an expansion/contraction mechanism 500a having a throttle 553b on a discharging channel of the liquid from the cylinder 571. The expansion/contraction mechanism 500a generates resistance in a direction of contraction, when a load exerted on the expansion/contraction mechanism 500a changes rapidly due to an earthquake and other reasons. On the other hand, the expansion/contraction mechanism 500a follows a gradual change in the load exerted on the expansion/contraction mechanism 500a due to gradual tilting of the earth retaining wall 300a, and is contracted.SELECTED DRAWING: Figure 2
【課題】土留め壁で囲まれる底面に立設する構造物について、地震などによって横方向荷重が急速に加わるときには横方向変位を抑制でき、かつ、土留め壁の傾きなどによる緩速な荷重変化が構造物に伝達されることを抑制できるようにする。【解決手段】アンダーピニング工法において、掘削底面に立設し既設構造物を支持する支柱２００ａと土留め壁３００ａとを、シリンダ５７１における液体の給排によって伸縮しシリンダ５７１からの流体の排出経路に絞り部５５３ｂを有する伸縮機構５００ａを介して連結する。そして、地震などによって伸縮機構５００ａに加わる荷重が急速に変化するときには伸縮機構５００ａによって縮み方向の抵抗を発生させ、土留め壁３００ａが徐々に傾くなどして伸縮機構５００ａに加わる荷重が緩速に変化するときには伸縮機構５００ａを追従して伸縮させる。【選択図】図２
TIMBERING STRUCTURE AND TIMBERING METHOD FOR STRUCTURE
PROBLEM TO BE SOLVED: To suppress displacement in a lateral direction when a lateral-direction load is exerted due to an earthquake and other reasons, and suppress conveyance of a gradual change in a load caused by tilting of an earth retaining wall and other reasons, for a structure erected on a bottom surface surrounded by the earth retaining wall.SOLUTION: In an underpinning method, a support post 200a erected on an excavated bottom surface for supporting an existing structure and an earth retaining wall 300a are expanded/contracted by supplying/discharging a liquid from a cylinder 571, and are connected through an expansion/contraction mechanism 500a having a throttle 553b on a discharging channel of the liquid from the cylinder 571. The expansion/contraction mechanism 500a generates resistance in a direction of contraction, when a load exerted on the expansion/contraction mechanism 500a changes rapidly due to an earthquake and other reasons. On the other hand, the expansion/contraction mechanism 500a follows a gradual change in the load exerted on the expansion/contraction mechanism 500a due to gradual tilting of the earth retaining wall 300a, and is contracted.SELECTED DRAWING: Figure 2
【課題】土留め壁で囲まれる底面に立設する構造物について、地震などによって横方向荷重が急速に加わるときには横方向変位を抑制でき、かつ、土留め壁の傾きなどによる緩速な荷重変化が構造物に伝達されることを抑制できるようにする。【解決手段】アンダーピニング工法において、掘削底面に立設し既設構造物を支持する支柱２００ａと土留め壁３００ａとを、シリンダ５７１における液体の給排によって伸縮しシリンダ５７１からの流体の排出経路に絞り部５５３ｂを有する伸縮機構５００ａを介して連結する。そして、地震などによって伸縮機構５００ａに加わる荷重が急速に変化するときには伸縮機構５００ａによって縮み方向の抵抗を発生させ、土留め壁３００ａが徐々に傾くなどして伸縮機構５００ａに加わる荷重が緩速に変化するときには伸縮機構５００ａを追従して伸縮させる。【選択図】図２
TIMBERING STRUCTURE AND TIMBERING METHOD FOR STRUCTURE
構造物の支保構造及び支保方法
TANAKA MAKOTO (author) / KUMAGAI MASATOSHI (author) / HAYAKAWA HIROHISA (author) / ITO HIROYUKI (author) / SHIRAI SHUNSUKE (author) / NISHIO AKIRA (author) / YAMAMOTO SHINYA (author)
2017-06-01
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
FORMWORK TIMBERING METHOD AND FORMWORK TIMBERING STRUCTURE
| European Patent Office | 2019