站房大跨度连续钢拱柱合龙温度研究

STUDY ON CLOSING TEMPERATURE OF LONG-SPAN CONTINUOUS STEEL ARCH COLUMN IN STATION HALL

中卫南站站房工程施工中,分析温度变化对大跨度连续钢拱柱的内力和变形的影响,结果表明温度变化对钢拱柱内力及变形有很大影响。通过研究不同合龙温度下钢拱柱温度变形和温度应力变化规律,确定了站房大跨度连续钢拱柱的合理合龙温度。

Based on the station hall project of Zhongwei South Railway Station,the influence of temperature change on the internal force and deformation of long-span continuous steel arch column is analyzed,which indicates that temperature changes have a great influence on the internal force and deformation of steel arch columns.The reasonable closing temperature of large-span continuous steel arch column in Zhongwei South Railway Station was determined by studying the variation law of temperature deformation and temperature stress of steel arch column under different closing temperatures.