Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Variable-friction large-span long-connection continuous beam system
The invention relates to a variable-friction large-span long-connection continuous beam system. The system comprises a beam body, a pier body which is supported below the beam body, a foundation, and a variable-friction support which is arranged between the beam body and the pier body. According to the variable-friction large-span long-connection continuous beam system, under the normal operation load effect, the relative sliding face of the beam body and the pier body is a plane, when the beam body stretches out and draws back, the elevation of a bridge floor is not changed, the driving safety of a high-speed railway is not affected, the friction coefficient of the sliding face is low, and the size of the pier body of the lower structure can be reduced; under the action of a rare earthquake, the relative sliding surface of the beam body and the pier body is a spherical surface, so that the natural vibration period of a bridge structure can be prolonged, the earthquake response can be reduced, the anti-seismic property of the large-span long-connection continuous beam system can be improved, and meanwhile, the spherical sliding surface has a relatively high friction coefficient and plays a role in energy consumption.
本发明涉及一种变摩阻大跨长联连续梁体系，其包括：梁体；墩身，支撑于所述梁体的下方；基础；设于所述梁体与所述墩身之间的变摩阻支座。本发明涉及的一种变摩阻大跨长联连续梁体系，在正常运营荷载作用下，梁体与墩身的相对滑动面为平面，梁体伸缩时，桥面高程无变化，不影响高速铁路行车安全，滑动面摩擦系数低，可减小下部结构墩身尺寸；在罕遇地震作用下，梁体与墩身的相对滑动面为球面，可延长桥梁结构自振周期、降低地震响应，提高大跨长联连续梁体系的抗震性能，同时球面滑动面具有较高的摩擦系数，起到耗能作用。
Variable-friction large-span long-connection continuous beam system
The invention relates to a variable-friction large-span long-connection continuous beam system. The system comprises a beam body, a pier body which is supported below the beam body, a foundation, and a variable-friction support which is arranged between the beam body and the pier body. According to the variable-friction large-span long-connection continuous beam system, under the normal operation load effect, the relative sliding face of the beam body and the pier body is a plane, when the beam body stretches out and draws back, the elevation of a bridge floor is not changed, the driving safety of a high-speed railway is not affected, the friction coefficient of the sliding face is low, and the size of the pier body of the lower structure can be reduced; under the action of a rare earthquake, the relative sliding surface of the beam body and the pier body is a spherical surface, so that the natural vibration period of a bridge structure can be prolonged, the earthquake response can be reduced, the anti-seismic property of the large-span long-connection continuous beam system can be improved, and meanwhile, the spherical sliding surface has a relatively high friction coefficient and plays a role in energy consumption.
本发明涉及一种变摩阻大跨长联连续梁体系，其包括：梁体；墩身，支撑于所述梁体的下方；基础；设于所述梁体与所述墩身之间的变摩阻支座。本发明涉及的一种变摩阻大跨长联连续梁体系，在正常运营荷载作用下，梁体与墩身的相对滑动面为平面，梁体伸缩时，桥面高程无变化，不影响高速铁路行车安全，滑动面摩擦系数低，可减小下部结构墩身尺寸；在罕遇地震作用下，梁体与墩身的相对滑动面为球面，可延长桥梁结构自振周期、降低地震响应，提高大跨长联连续梁体系的抗震性能，同时球面滑动面具有较高的摩擦系数，起到耗能作用。
Variable-friction large-span long-connection continuous beam system
一种变摩阻大跨长联连续梁体系
XIAO HAIZHU (Autor:in) / BIE YESHAN (Autor:in) / TANG CHAO (Autor:in) / LI SONGLIN (Autor:in) / DAI HUIMIN (Autor:in) / ZHANG JIANQIANG (Autor:in) / HUANG YUN (Autor:in) / SHU SILI (Autor:in) / LIU JUNFENG (Autor:in) / TAN GUOHONG (Autor:in)
01.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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