Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Arch dam shape design method
The invention relates to an arch dam shape design method, and belongs to the technical field of arch dam engineering. The method comprises the following steps: firstly, establishing a coordinate system, selecting four control elevation sub-arch rings for shape design for a selected arch dam foundation surface, fitting design parameters of the four control elevation sub-arch rings, then fitting the prepared design parameters of the four control elevation sub-arch rings into a cubic curvilinear equation, calculating to obtain the design parameters of other elevation sub-arch rings, and finally calculating the curvature radius and the central angle of each elevation sub-arch ring to complete the shape design of the arch dam. According to the arch dam shape design method, only 16 parameters need to be determined to describe the shape of the arch dam, so the number of shape adjustment parameters is reduced, and the shape design efficiency is remarkably improved; and the curvature radius and the center angle of a sub-arch ring curve are inversely calculated according to the center coordinates of the arch ends, the positions of the arch ends are not changed in the shape adjustment process, and the shape adjustment is performed on the selected arch dam foundation surface, so that the effectiveness of the arch dam shape design is ensured.
本发明涉及一种拱坝体形设计的方法，属于拱坝工程技术领域，首先通过建立坐标系，然后对选定的拱坝建基面，选择4个体形设计的控制高程分拱圈，并拟定的4个控制高程分拱圈的设计参数，再然后将拟定的4个控制高程分拱圈的设计参数拟合为3次曲线方程，通过计算得到其他高程分拱圈的设计参数，最后再计算出各高程分拱圈的曲率半径和中心角，完成拱坝的体形设计。该拱坝体形设计的方法只需确定16个参数来描述拱坝体形，减少体形调整参数的个数，显著提高体形设计的效率，而且采用了以拱端中心坐标反算分拱圈曲线的曲率半径和中心角，使得体形调整的过程不改变拱端的位置，体形调整均在选定的拱坝建基面上进行，保证拱坝体形设计的有效性。
Arch dam shape design method
The invention relates to an arch dam shape design method, and belongs to the technical field of arch dam engineering. The method comprises the following steps: firstly, establishing a coordinate system, selecting four control elevation sub-arch rings for shape design for a selected arch dam foundation surface, fitting design parameters of the four control elevation sub-arch rings, then fitting the prepared design parameters of the four control elevation sub-arch rings into a cubic curvilinear equation, calculating to obtain the design parameters of other elevation sub-arch rings, and finally calculating the curvature radius and the central angle of each elevation sub-arch ring to complete the shape design of the arch dam. According to the arch dam shape design method, only 16 parameters need to be determined to describe the shape of the arch dam, so the number of shape adjustment parameters is reduced, and the shape design efficiency is remarkably improved; and the curvature radius and the center angle of a sub-arch ring curve are inversely calculated according to the center coordinates of the arch ends, the positions of the arch ends are not changed in the shape adjustment process, and the shape adjustment is performed on the selected arch dam foundation surface, so that the effectiveness of the arch dam shape design is ensured.
本发明涉及一种拱坝体形设计的方法，属于拱坝工程技术领域，首先通过建立坐标系，然后对选定的拱坝建基面，选择4个体形设计的控制高程分拱圈，并拟定的4个控制高程分拱圈的设计参数，再然后将拟定的4个控制高程分拱圈的设计参数拟合为3次曲线方程，通过计算得到其他高程分拱圈的设计参数，最后再计算出各高程分拱圈的曲率半径和中心角，完成拱坝的体形设计。该拱坝体形设计的方法只需确定16个参数来描述拱坝体形，减少体形调整参数的个数，显著提高体形设计的效率，而且采用了以拱端中心坐标反算分拱圈曲线的曲率半径和中心角，使得体形调整的过程不改变拱端的位置，体形调整均在选定的拱坝建基面上进行，保证拱坝体形设计的有效性。
Arch dam shape design method
一种拱坝体形设计的方法
ZHANG JING (Autor:in) / ZHU HAIXIA (Autor:in) / LIU XIAOQIANG (Autor:in) / HE CHUNHUI (Autor:in) / LAI CHANGJIANG (Autor:in)
07.12.2021
Patent
Elektronische Ressource
Chinesisch
Valley shape factor in arch dam design
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Arch bridges: shape and stifness
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