Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Damping method suitable for deck type arch bridge
The invention relates to the technical field of bridge damping, in particular to a damping method suitable for a deck type arch bridge, which comprises the following steps of: establishing a finite element model of the deck type arch bridge; static analysis is conducted on the finite element model of the deck type arch bridge, the stress condition of the deck type arch bridge under the conventional condition and the displacement condition of a beam are obtained, and the component form and size of the deck type arch bridge and the vertical bearing capacity of all fulcrums are determined; friction pendulum supports are arranged on all fulcrums of the deck type arch bridge. Carrying out earthquake response analysis on the finite element model of the deck type arch bridge by adopting a nonlinear time-history analysis method to obtain the stress condition of each fulcrum provided with the friction pendulum support and the displacement condition of a beam in an earthquake state, and checking and calculating the vertical bearing capacity of the friction pendulum support according to the stress condition of each fulcrum in the earthquake state. And judging whether a damper needs to be arranged according to the displacement condition of the beam. When the dampers need to be arranged, the transverse damper and the vertical damper are arranged according to needs.
本发明涉及桥梁减震的技术领域，特别是一种适用于上承式拱桥的减震方法，包含如下步骤：建立上承式拱桥的有限元模型；对上承式拱桥的有限元模型进行静力分析，得到上承式拱桥在常规条件下的受力情况以及梁的位移情况，确定上承式拱桥的构件形式和尺寸和各支点的竖向承载力；在上承式拱桥的各支点设置摩擦摆支座；采用非线性时程分析法对上承式拱桥的有限元模型进行地震响应分析，得到地震状态下设置了摩擦摆支座的各支点的受力情况和梁的位移情况，根据地震状态下各支点的受力情况检算摩擦摆支座的竖向承载力，根据梁的位移情况判断是否需要设置阻尼器。当需要设置阻尼器时，则根据需要设置横向阻尼器和竖向阻尼器。
Damping method suitable for deck type arch bridge
The invention relates to the technical field of bridge damping, in particular to a damping method suitable for a deck type arch bridge, which comprises the following steps of: establishing a finite element model of the deck type arch bridge; static analysis is conducted on the finite element model of the deck type arch bridge, the stress condition of the deck type arch bridge under the conventional condition and the displacement condition of a beam are obtained, and the component form and size of the deck type arch bridge and the vertical bearing capacity of all fulcrums are determined; friction pendulum supports are arranged on all fulcrums of the deck type arch bridge. Carrying out earthquake response analysis on the finite element model of the deck type arch bridge by adopting a nonlinear time-history analysis method to obtain the stress condition of each fulcrum provided with the friction pendulum support and the displacement condition of a beam in an earthquake state, and checking and calculating the vertical bearing capacity of the friction pendulum support according to the stress condition of each fulcrum in the earthquake state. And judging whether a damper needs to be arranged according to the displacement condition of the beam. When the dampers need to be arranged, the transverse damper and the vertical damper are arranged according to needs.
本发明涉及桥梁减震的技术领域，特别是一种适用于上承式拱桥的减震方法，包含如下步骤：建立上承式拱桥的有限元模型；对上承式拱桥的有限元模型进行静力分析，得到上承式拱桥在常规条件下的受力情况以及梁的位移情况，确定上承式拱桥的构件形式和尺寸和各支点的竖向承载力；在上承式拱桥的各支点设置摩擦摆支座；采用非线性时程分析法对上承式拱桥的有限元模型进行地震响应分析，得到地震状态下设置了摩擦摆支座的各支点的受力情况和梁的位移情况，根据地震状态下各支点的受力情况检算摩擦摆支座的竖向承载力，根据梁的位移情况判断是否需要设置阻尼器。当需要设置阻尼器时，则根据需要设置横向阻尼器和竖向阻尼器。
Damping method suitable for deck type arch bridge
一种适用于上承式拱桥的减震方法
CHEN KEJIAN (Autor:in) / ZHANG YU (Autor:in) / DAI SHENGYONG (Autor:in) / CHEN JIANFENG (Autor:in) / ZHANG ZHIYONG (Autor:in) / LI HENG (Autor:in) / PENG FUBING (Autor:in) / CHEN TIANDI (Autor:in) / HAN MINGZHE (Autor:in) / HAN YUWEI (Autor:in)
09.04.2024
Patent
Elektronische Ressource
Chinesisch
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