摘要
本文在理论上是对文献[1]的推广。文献[1]首次提出利用动态规划法分析中国“公路桥涵设计规范”中规定的车队活载作用下桥梁最大内力的数学模型和计算方法。本文作者把上述方法发展为一种求解各种公路桥梁结构在各类可能的活载作用下的最大内力的普遍方法,并据此编制了通用程序。该方法和程序具有广泛适用性,不但可以解决世界各国规范中的同类问题,而且为工程界制订更为复杂的新规范提供了理论基础和计算手段。
This paper is theoretically the extension of the reference [1] . In reference [1] the author proposed a new method by dynamic programming to determine the maximum stress of highway bridge structures under truck train loadings. In this paper the authors develop the above method to a general case, the truck train loading consists of various kinds of trucks, and the solved structure is idealized with different kinds of elements.Combined with the finite element method and the theory presented in references [3] and [4] , this method is a systematic and practical one, which can be used to solve different problems corresponding to the standard specifications for highway bridges of different countries in the world. The computing program is a general-purpose program run on IBM PC/XT.Two numerical examples solved with this program are presented in this paper.
