Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bidirectional buffering and seismic isolation bridge support
The invention provides a two-way buffering shock insulation bridge support which comprises a lower support plate, a lower lining plate, a spherical crown lining plate, an upper support plate and a transverse shearing buffering block, relative sliding between the upper support plate and the spherical crown lining plate firstly meets the requirement for displacement of a beam body in the longitudinal bridge direction; and the spherical crown lining plate and the lower lining plate are rotationally connected, so that the small-range deflection of the beam body can be adapted. The lower lining plate is connected with the lower base plate through a shearing bolt, and when the horizontal acting force in the transverse bridge direction is smaller than a preset value, the acting force in the transverse bridge direction can be resisted through the shearing bolt; when the horizontal acting force in the transverse bridge direction is larger than the limit bearing force of the shearing bolt, the shearing bolt is sheared off in the horizontal direction, and the displacement of the beam body in the transverse bridge direction is buffered through the horizontal friction force of the lower lining plate and the lower base plate and elastic deformation of the shearing buffering block. The one-way movable support inherits the one-way displacement performance of the one-way movable support in the longitudinal bridge direction, the shock absorption and isolation design is adopted in the transverse bridge direction, the earthquake horizontal force in the transverse bridge direction can be greatly reduced, and a bridge is protected in an earthquake.
本发明提供了一种双向缓冲隔震桥梁支座，包括下座板、下衬板、球冠衬板、上座板和横向剪切缓冲块，上座板与球冠衬板之间的相对滑动，首先满足梁体沿纵桥向的位移；球冠衬板与下衬板之间的转动连接，能够适应梁体的小范围偏转。下衬板通过剪切螺栓与下座板连接，在横桥向的水平作用力小于预定值时，通过剪切螺栓能够硬抗横桥向的作用力；而当横桥向的水平作用力大于剪切螺栓的极限承受力时，剪切螺栓沿水平方向被剪断，通过下衬板与下座板的水平摩擦力以及剪切缓冲块发生弹性形变对梁体的沿横桥向的位移进行缓冲。本发明在纵桥向继承了单向活动支座的单向位移性能，且横桥向为减隔震设计，可以大大降低横桥向的地震水平力，在地震下保护桥梁。
Bidirectional buffering and seismic isolation bridge support
The invention provides a two-way buffering shock insulation bridge support which comprises a lower support plate, a lower lining plate, a spherical crown lining plate, an upper support plate and a transverse shearing buffering block, relative sliding between the upper support plate and the spherical crown lining plate firstly meets the requirement for displacement of a beam body in the longitudinal bridge direction; and the spherical crown lining plate and the lower lining plate are rotationally connected, so that the small-range deflection of the beam body can be adapted. The lower lining plate is connected with the lower base plate through a shearing bolt, and when the horizontal acting force in the transverse bridge direction is smaller than a preset value, the acting force in the transverse bridge direction can be resisted through the shearing bolt; when the horizontal acting force in the transverse bridge direction is larger than the limit bearing force of the shearing bolt, the shearing bolt is sheared off in the horizontal direction, and the displacement of the beam body in the transverse bridge direction is buffered through the horizontal friction force of the lower lining plate and the lower base plate and elastic deformation of the shearing buffering block. The one-way movable support inherits the one-way displacement performance of the one-way movable support in the longitudinal bridge direction, the shock absorption and isolation design is adopted in the transverse bridge direction, the earthquake horizontal force in the transverse bridge direction can be greatly reduced, and a bridge is protected in an earthquake.
本发明提供了一种双向缓冲隔震桥梁支座，包括下座板、下衬板、球冠衬板、上座板和横向剪切缓冲块，上座板与球冠衬板之间的相对滑动，首先满足梁体沿纵桥向的位移；球冠衬板与下衬板之间的转动连接，能够适应梁体的小范围偏转。下衬板通过剪切螺栓与下座板连接，在横桥向的水平作用力小于预定值时，通过剪切螺栓能够硬抗横桥向的作用力；而当横桥向的水平作用力大于剪切螺栓的极限承受力时，剪切螺栓沿水平方向被剪断，通过下衬板与下座板的水平摩擦力以及剪切缓冲块发生弹性形变对梁体的沿横桥向的位移进行缓冲。本发明在纵桥向继承了单向活动支座的单向位移性能，且横桥向为减隔震设计，可以大大降低横桥向的地震水平力，在地震下保护桥梁。
Bidirectional buffering and seismic isolation bridge support
双向缓冲隔震桥梁支座
WU DATONG (Autor:in) / ZHANG CHUN (Autor:in) / CHEN JUNWEN (Autor:in) / LIU XINHAO (Autor:in) / WANG SHENG (Autor:in) / ZHAI XINGZE (Autor:in)
16.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
Prestress buffering energy dissipation bridge vibration isolation support
| Europäisches Patentamt | 2021