曲線橋受到荷重時其上部結構會產生較大之扭轉效應，因此曲線橋宜多採用抗扭性能良好之箱型梁來作為主梁。鑑於曲線薄壁箱型梁對參數(如材料性質、幾何尺寸、外部荷載等等)的探討多採用絕對數值，因此無法完整表現出橋梁在實際施工過程中，參數因施做誤差而造成的影響。據此，本文在曲線箱型梁翹曲扭轉分析理論中加入參數隨機性之考慮，透過響應面法，在參數隨機性作用下，探討力學行為的變化。 More significant torsional effect occurs in the superstructure of a curved girder bridges under load, box girders having good torsional resistance are therefore suitable for the main girder application of such bridges. Since the parameters of curved thin-wall box girder such as material characteristics, geometric dimensions, external loads, etc., are generally explored using their absolute values, it is difficult to express thoroughly the influences caused by parametric mistake owing to the actual construction process. In view of the above, this study aims to find mechanical variations under actions of stochastic parameters by way of the response surface approach, combining considerations of stochastic parameters in analytic theories of the warping torsion of curved box girders.
關聯:
中華民國第八屆結構工程研討會論文集=Proceedings of the 8th National Conference on Structural Engineering，8頁
