摘要
选取秋季晴天、春季阴天及夏季晴天三种典型的天气对大乌江特大桥桥墩内部温度进行测试,并对现场实测的大量温度数据进行回归分析,整理出桥墩最不利的升温温度梯度模式,拟合出桥墩沿横向的分段直线式温度梯度模式;采用有限元软件ANSYS对桥墩截面进行数值分析,并与实测温度进行比较,验证了模型数值分析的可靠性。
Three typical weathers such as sunny autumn,cloudy spring,sunny summer were selected to test the internal temperature of piers of Wujiang River Super-large Bridge.On the basis of the regression analysis of a large number of temperature data on-site-test measured,the temperature gradient mode under the condition of the most disadvantageous was sorted out,and the sub-linear temperature gradient mode along the horizontal of the Wujiang River Super-large Bridge piers was fitted out.With the software of ANSYS,the numerical analysis for the piers cross-section was made.Compared with the measured,the reliability of the numerical analysis was verified.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2010年第12期194-198,共5页
Journal of Central South University of Forestry & Technology
关键词
土木工程
薄壁空心高墩
温度场测试
数值分析
civil engineering
thin-walled hollow high-pier
temperature field test
numerical analysis
