摘要
针对天兴洲公铁两用斜拉桥提出"MR阻尼器+液体粘滞阻尼器"的混合控制方案,并建立了对该桥主梁纵向地震、列车制动和行车移动荷载响应混合控制的基本方程、控制策略和仿真分析方法,分析结果表明采用该混合控制方案能有效地抑制大桥主梁纵向地震、列车制动及行车移动荷载的振动响应。
In the light of the situations of Tianxingzhou Rail-cum-Road Cable-Stayed Bridge, this paper puts forward a hybrid control scheme of magneto-theological （MR） dampers plus fluid viscous dampers and specifically establishes the basic equations, control strategy and simulation analysis method for the control of the longitudinal vibration responses in deck of the Birdge caused by earthquake, train braking and vehicle moving loads. The results of analysis demon- strate that the utilization of the hybrid control scheme as put forward in the paper can effectively suppress the vibration responses due to the earthquake, train braking and vehicle moving loads.
出处
《桥梁建设》
EI
CSCD
北大核心
2008年第4期1-4,9,共5页
Bridge Construction
