摘要
从温度变化引起杆系结构的变形和受力特点出发 ,提出采用不同的多项式函数分区拟合结构温度场 ,并将温度变化等效成荷载计算温度变形的方法 ,经过实桥测试验证并与其它方法比较 ,本方法能够准确地计算施工控制中的温度影响 ,具有足够的工程精度。
In this paper, a method of eliminating the temperature influence is developed. Diverse polynominal functions are adopted to simulate the temperature change distribution in the girder with π shape cross section of Pc cable-stayed bridge. Based on the classical structure mechanics, the temperature deformation is transformed into equivalent load to calculate the structure reaction. By the verification of construction control in an actual bridge, the majority of temperature influence can be estimated and removed away with adequate precision.
出处
《公路交通科技》
CAS
CSCD
北大核心
2002年第6期84-87,共4页
Journal of Highway and Transportation Research and Development
关键词
斜拉桥
施工控制
温度影响
Cable-stayed bridge
Construction control
Temperature influence
