摘要
大跨度结构的风荷载效应问题,给大型火车站的设计带来了较大的挑战。利用风洞试验及结构有限元计算等手段对外部自然风作用下车站的平均风荷载、风振响应进行计算与分析;利用计算流体动力学CFD软件对内部列车快速过站时列车风引起的屋盖动态风压力变化进行深入研究,得到详实的主体结构分区等效静风荷载、围护结构风荷载数据,同时对高速列车过站引发的列车风效应问题进行预测和评估,为火车站整体结构设计以及内部站台设计提供参考。
The problems of wind-induced loads and effects will appear when the long-span structures are used in highspeed train station,and become a challenge to the large railway station design. Both wind tunnel test and FEA method were used to analyze and calculate the mean wind load and wind-induced vibration response which was affected by the natural wind field outside a high-speed train station. CFD numerical simulation method was also carried out to predict the fluctuating wind pressure on the roof,which was induced by the high-speed train inside when going through the station fast with no stop. According to the analysis results,the equivalent static wind loads in different regions of the roof and the wind loads of building enclosure were obtained. An assessment of the windinduced effects on the roof caused by high-speed train was also conducted. The results could provide references for the design of main structure and platform of high-speed train station.
作者
许伟
李庆祥
XU Wei;LI Qingxiang(Guangdong Provincial Academy of Building Research, Guangzhou 510500, China)
出处
《工业建筑》
CSCD
北大核心
2018年第3期78-82,126,共6页
Industrial Construction
关键词
火车站
风荷载效应
风振计算
风洞试验
train station
wind-induced effects
wind-induced vibration analysis
wind tunnel test
