2004新版公路桥规有关内容的计算机程序实现方法及应用

该文从刚颁布不久却已广为应用的新桥规的有关计算内容出发,从原理上给出了各种有关重点内容的计算方法,包括荷载效应组、汽车活载效应、非线性温度梯度、钢束二次力、收缩徐变损失及二次力、频率、振型与冲击系数,以及承载能力计算时的内力组合计算方法,钢束进入受压区的非线性求解过程等,并给出了新规范应用中的一些相关结论。

Computer Program Implementation Method and Application of Related Contents of Highway Bridge Specifications Newly Published in 2004

On account of the computed contents of newly published specifications of bridge structure which has been used widely, the different computing methods of the relative important parts are detailed in principle, including combination of load effects, live load effect of automobile, nonlinear temperature grade, second force of pre-stressed steel, loss of shrinkage creep and its second force, frequency, vibration form and impact factor as well as the calculation method of inner force combination when computing the load carrying capacity, and the nonlinear solution procedure of the pre-stressed steel into the compressive zone. And also some conclusions are drawn from the application of the new specification.