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本文以曲线薄壁梁的翘曲扭转理论和有限元方法为基础,对曲线格子梁理论,提出了考虑翘曲作用的计算方法。通过对一公路曲线箱形梁桥试验模型的计算,其结果与试验实测值比较吻合。作为实际应用,该方法对青岛一曲线斜支承格子箱形梁桥散了计算分析。全部计算分别由Wang VS2200和IBM 4331机上实现,文末列举了部分计算结果。该方法也适用于其它形式曲线桥梁的分析。
Based on the warpage theory and finite element method of curvilinear thin-walled beam, this paper presents a method to calculate the warping effect of curvilinear beam. Through the calculation of the test model of curved box girder bridge of a highway, the result is in good agreement with the measured value of the test. As a practical application, this method is used to calculate and analyze the diagonal supporting lattice box girder bridge of a curve in Qingdao. The whole calculation is realized by Wang VS2200 and IBM 4331 respectively. At the end of the article, some calculation results are listed. This method is also applicable to the analysis of other forms of curved bridges.