【摘要】 介绍了计算混凝土斜拉桥主梁施工期抗力自相关函数的两种方法:离散采样法和假定抗力服从独立增量过程的连续函数法。结合实例对两种方法的计算结果进行了分析和比较,发现主梁施工期早期抗力不同时刻间的自相关性较强;随着龄期的增大,两种方法计算的抗力自相关函数值相差很小。更多还原

【Abstract】 The two methods for calculating the standard autocorrelation function of main beam resistance in concrete cable-stayed bridge are introduced: the method of discrete data and the method of continuous (function) with the resistance in independent increment random process. Through an example the (results) of two methods are analyzed and compared, and it is found that autocorrelation property of resistance during construction exhibits much and the results of two methods are more similar in aging.更多还原