A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Stay cable bridge and anchoring optimization method thereof
The invention discloses a stay cable bridge, which comprises a main beam, a cable bent tower and stay cables. The cable bent tower is located between the two ends of the main beam. The height area, located above the main beam, of the cable bent tower is divided into a concentrated anchoring area and a dispersed anchoring area. The concentrated anchoring area is located on the upper portion of the dispersed anchoring area, and the two ends of each stay cable are anchored to the main beam and the cable bent tower correspondingly; the stay cables anchored to the concentrated anchoring area are in a fan-shaped cable surface, and the stay cables anchored to the dispersed anchoring area are in a harp-like cable surface. The invention further discloses an anchoring optimization method of the stay cable bridge. The horizontal included angle of each stay cable is calculated according to the fan-shaped cable surface, the stay cable with the horizontal included angle being a preset value is selected as a boundary, the fan-shaped cable surface is adopted for anchoring above the boundary, and the harp-like cable surface is adopted for anchoring below the boundary. The stay cables in the dispersed anchoring area are arranged in a harp-like cable surface, so that the lengths of the stay cables are shortened, the included angles between the stay cables and the horizontal line are reduced, and the structural rigidity and the use performance of the bridge are improved.
本申请公开了一种斜拉索桥梁，包括主梁、索塔和斜拉索，索塔位于主梁的两端之间，索塔位于主梁的上方高度区域分为集中锚固区和分散锚固区，集中锚固区位于分散锚固区的上部，多个斜拉索的两端分别锚固至主梁和索塔，锚固至集中锚固区的斜拉索呈扇形索面，锚固至分散锚固区的斜拉索呈类竖琴形索面。本申请还公开了一种斜拉索桥梁的锚固优化方法，按照扇形索面计算每根斜拉索的水平夹角，选取水平夹角为预设值的斜拉索为分界线，分界线之上采用扇形索面锚固，分界线之下采用类竖琴形索面锚固。通过分散锚固区的斜拉索呈类竖琴形索面的设置，使得斜拉索长度缩短，斜拉索与水平线的夹角减小，改善桥梁结构刚度及其使用性能。
Stay cable bridge and anchoring optimization method thereof
The invention discloses a stay cable bridge, which comprises a main beam, a cable bent tower and stay cables. The cable bent tower is located between the two ends of the main beam. The height area, located above the main beam, of the cable bent tower is divided into a concentrated anchoring area and a dispersed anchoring area. The concentrated anchoring area is located on the upper portion of the dispersed anchoring area, and the two ends of each stay cable are anchored to the main beam and the cable bent tower correspondingly; the stay cables anchored to the concentrated anchoring area are in a fan-shaped cable surface, and the stay cables anchored to the dispersed anchoring area are in a harp-like cable surface. The invention further discloses an anchoring optimization method of the stay cable bridge. The horizontal included angle of each stay cable is calculated according to the fan-shaped cable surface, the stay cable with the horizontal included angle being a preset value is selected as a boundary, the fan-shaped cable surface is adopted for anchoring above the boundary, and the harp-like cable surface is adopted for anchoring below the boundary. The stay cables in the dispersed anchoring area are arranged in a harp-like cable surface, so that the lengths of the stay cables are shortened, the included angles between the stay cables and the horizontal line are reduced, and the structural rigidity and the use performance of the bridge are improved.
本申请公开了一种斜拉索桥梁，包括主梁、索塔和斜拉索，索塔位于主梁的两端之间，索塔位于主梁的上方高度区域分为集中锚固区和分散锚固区，集中锚固区位于分散锚固区的上部，多个斜拉索的两端分别锚固至主梁和索塔，锚固至集中锚固区的斜拉索呈扇形索面，锚固至分散锚固区的斜拉索呈类竖琴形索面。本申请还公开了一种斜拉索桥梁的锚固优化方法，按照扇形索面计算每根斜拉索的水平夹角，选取水平夹角为预设值的斜拉索为分界线，分界线之上采用扇形索面锚固，分界线之下采用类竖琴形索面锚固。通过分散锚固区的斜拉索呈类竖琴形索面的设置，使得斜拉索长度缩短，斜拉索与水平线的夹角减小，改善桥梁结构刚度及其使用性能。
Stay cable bridge and anchoring optimization method thereof
斜拉索桥梁及其锚固优化方法
RAO SHIWEI (author) / ZENG MIN (author) / MA MING (author) / YANG YONG (author) / LI YUANJUN (author) / FU XIAOJUN (author) / LIN CHENG (author) / LIU SHIWEN (author) / TANG DAIWEI (author) / RAO SHAOCHEN (author)
2021-05-25
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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