Abstract: Based on the classic calculation theory of arch bridge,a special program which could be used to calculate internal forces of deck type and half-through arch bridge has been developed in virtue of Visual Basic Language.Two specifications about 1985 and 2004 are included in this special program.It could carry out not only the optimization of arch-axis coefficient,but also the calculation of dead load,live load and additional force.In addition,combination of internal forces and checking of bearing capacity could also be automatically realized.This special program features with high calculation precision,convenient operation and strong feasibility.

Key words: arch bridge, calculation of internal forces, program development

摘要： 以拱桥经典计算理论为基础,应用Visual Basic语言开发了一套专门用于普通上承式和中承式拱桥内力计算的分析程序。该程序包含了"85"规范和"04"规范两种荷载等级,可以开展拱轴系数优化、恒载、活载和附加内力计算,并自动完成荷载组合和承载力验算。通过算例结果表明,所开发的专用程序具有较高的计算精度,且操作方便,实用性强。

关键词: 拱桥, 内力计算, 程序开发