A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ASEISMATIC STRUCTURE, AND METHOD TO IMPROVE ASEISMATIC PERFORMANCE
PROBLEM TO BE SOLVED: To provide an economically efficient aseismatic structure that may be installed readily, avoiding reinforcement of a bridge pier and a bridge abutment to an extent possible, along with a method for improving aseismatic performance.SOLUTION: An aseismatic structure 1 includes: a support structure (a bridge abutment 3) that receives earth pressure while supporting a structure above, and an elastic bearing (a laminated rubber bearing 7) or an elastic device provided between the structure above and the support structure, after being elastically deformed in the soil pressure direction received by the support structure. The support structure may be a bridge abutment supporting a bridge girder of a bridge, a dam, or a movable weir, while the elastic bearing may be a laminated rubber bearing without damping capability or an aseismic isolation bearing with damping capability. A component having a cylinder, a rod disposed inside the cylinder and an elastic body interposed between the cylinder and the rod, either with or without damping capability, may be used as the elastic device.SELECTED DRAWING: Figure 1
【課題】橋脚や橋台等を極力補強することなく、施工が容易で、かつ経済性に優れた耐震構造体及び耐震性向上方法を提供する。【解決手段】上方の構造体を支持しながら土圧を受ける支持構造体（橋台３）と、上方の構造体と支持構造体との間に、支持構造体の受動土圧方向側に予め弾性変形させた弾性支承（積層ゴム支承７）又は弾性装置とを備える耐震構造体１等。支持構造体は、橋梁、ダム又は可動堰の橋桁を支持する橋台とすることができ、弾性支承は、減衰性能を有さない積層ゴム支承や減衰性能を有する免震支承であってもよい。弾性装置として、シリンダと、シリンダ内に配されたロッドと、シリンダとロッドとの間に介在する弾性体とを備え、減衰性能を有さないもの又は有するものを用いることもできる。【選択図】図１
ASEISMATIC STRUCTURE, AND METHOD TO IMPROVE ASEISMATIC PERFORMANCE
PROBLEM TO BE SOLVED: To provide an economically efficient aseismatic structure that may be installed readily, avoiding reinforcement of a bridge pier and a bridge abutment to an extent possible, along with a method for improving aseismatic performance.SOLUTION: An aseismatic structure 1 includes: a support structure (a bridge abutment 3) that receives earth pressure while supporting a structure above, and an elastic bearing (a laminated rubber bearing 7) or an elastic device provided between the structure above and the support structure, after being elastically deformed in the soil pressure direction received by the support structure. The support structure may be a bridge abutment supporting a bridge girder of a bridge, a dam, or a movable weir, while the elastic bearing may be a laminated rubber bearing without damping capability or an aseismic isolation bearing with damping capability. A component having a cylinder, a rod disposed inside the cylinder and an elastic body interposed between the cylinder and the rod, either with or without damping capability, may be used as the elastic device.SELECTED DRAWING: Figure 1
【課題】橋脚や橋台等を極力補強することなく、施工が容易で、かつ経済性に優れた耐震構造体及び耐震性向上方法を提供する。【解決手段】上方の構造体を支持しながら土圧を受ける支持構造体（橋台３）と、上方の構造体と支持構造体との間に、支持構造体の受動土圧方向側に予め弾性変形させた弾性支承（積層ゴム支承７）又は弾性装置とを備える耐震構造体１等。支持構造体は、橋梁、ダム又は可動堰の橋桁を支持する橋台とすることができ、弾性支承は、減衰性能を有さない積層ゴム支承や減衰性能を有する免震支承であってもよい。弾性装置として、シリンダと、シリンダ内に配されたロッドと、シリンダとロッドとの間に介在する弾性体とを備え、減衰性能を有さないもの又は有するものを用いることもできる。【選択図】図１
ASEISMATIC STRUCTURE, AND METHOD TO IMPROVE ASEISMATIC PERFORMANCE
耐震構造体及び耐震性向上方法
HIROSE TAKESHI (author) / UNO HIROE (author)
2018-01-11
Patent
Electronic Resource
Japanese