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以合肥新桥国际机场航站楼箱形曲梁构件为背景,针对曲梁的截面形式(长宽比)、截面板厚以及曲梁构件的轴线曲率对构件极限承载力的影响做了参数分析。采用ANSYS有限元软件进行建模计算,得到了上述三种参数的影响。计算发现,截面高宽比增加可增加构建承载力,翼缘板厚和腹板厚的增加会导致截面承载力基本呈线性增加,随着截面曲率半径R的增大,会使截面承载力呈先增后减的变化趋势。本文的计算结果也为曲梁构件的设计和研究提供了理论依据。
Taking the box girder member of Hefei Xinqiao International Airport as a background, the parametric analysis is made on the effect of the section form (aspect ratio), the section thickness and the curvature of the curved beam member on the ultimate bearing capacity . Using ANSYS finite element software modeling and calculation, the impact of the above three parameters were obtained. The results show that the increase of section aspect ratio can increase the bearing capacity, and the increase of flange thickness and web thickness leads to the linear increase of section bearing capacity. With the increase of section radius of curvature R, the section bearing capacity Increase and then decrease the trend. The results of this paper also provide a theoretical basis for the design and research of curved members.