混凝土轨枕承载能力影响参数分析

AN ANALYSIS OF THE LOAD-BEARING CAPACITY AND THE INFLUENTIAL PARAMETER OF THE REINFORCED CONCRETE SLEEPERS

本文提出的非均匀支承条件变截面弹性地基梁法,能计算不同的地基支承条件、各种结构型式尺寸以及各种荷载组合情况下的轨枕承载能力,从而能模拟混凝土轨枕的实际工况,并获得最佳参数。推荐的方法对新型混凝土轨枕的研究设计具有实际意义。

In this paper we propose a practical method of analysis——the method of variable cross-section and elastic foundation under uneven supporting conditions——for the design of reinforced concrete sleepers, by which we discuss the geometrical and mechanical influential parameters of the load-bearing ability of reinforced concrete sleepers for various elastic parameters of foundation and different combinations of loads on the beam. Results show that the method adopted here is of practical significance to the research and design of a new type of reinforced concrete sleepers.