A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Special-shaped cable bent tower and construction method
The invention relates to a special-shaped cable bent tower and a construction method, and belongs to the technical field of buildings, the special-shaped cable bent tower comprises a tower body, the tower body is of a rotary body structure, and the tower body is divided into a lower tower column, a middle tower column and an upper tower column which are sequentially connected from bottom to top; the circle centers and the outer diameters of the lower tower column, the middle tower column and the upper tower column are different, after sea wind blows, vortexes can be generated on the two sides of the tower body, the thin structure in the middle of the tower body can enable the vortex separation frequency to change along the height of the cable bent tower, the situation that the sea wind is close to the natural frequency of the tower body is avoided, and then the possibility of vortex excitation can be avoided; the positions of the circle centers are different, on one hand, aerodynamics is considered, uneven distribution of aerodynamic force and wind pressure is reduced, and on the other hand, the situation that resonance occurs due to the fact that the inherent frequency of the cable bent tower is consistent with the external excitation frequency of wind is avoided.
本申请涉及一种异形索塔及施工方法，属于建筑技术领域，异形索塔及施工方法，包括塔体，塔体为回转体结构，塔体分为自下而上依次连接的下塔柱、中塔柱和上塔柱；本申请中下塔柱、中塔柱和上塔柱的圆心和外径都不同，当有海风吹过后，会在塔体的两侧产生涡流，塔体中间细的结构能够使涡流脱离频率沿索塔高度变化，避免海风与塔体的自然频率相接近，进而能避免产生涡流激振的可能性，而且圆心位置不同，一方面考虑到空气动力学，减少气动力和风压的不均匀分布，另一方面是为了避免索塔的固有频率和风作为外部激励频率一致而出现共振的情况。
Special-shaped cable bent tower and construction method
The invention relates to a special-shaped cable bent tower and a construction method, and belongs to the technical field of buildings, the special-shaped cable bent tower comprises a tower body, the tower body is of a rotary body structure, and the tower body is divided into a lower tower column, a middle tower column and an upper tower column which are sequentially connected from bottom to top; the circle centers and the outer diameters of the lower tower column, the middle tower column and the upper tower column are different, after sea wind blows, vortexes can be generated on the two sides of the tower body, the thin structure in the middle of the tower body can enable the vortex separation frequency to change along the height of the cable bent tower, the situation that the sea wind is close to the natural frequency of the tower body is avoided, and then the possibility of vortex excitation can be avoided; the positions of the circle centers are different, on one hand, aerodynamics is considered, uneven distribution of aerodynamic force and wind pressure is reduced, and on the other hand, the situation that resonance occurs due to the fact that the inherent frequency of the cable bent tower is consistent with the external excitation frequency of wind is avoided.
本申请涉及一种异形索塔及施工方法，属于建筑技术领域，异形索塔及施工方法，包括塔体，塔体为回转体结构，塔体分为自下而上依次连接的下塔柱、中塔柱和上塔柱；本申请中下塔柱、中塔柱和上塔柱的圆心和外径都不同，当有海风吹过后，会在塔体的两侧产生涡流，塔体中间细的结构能够使涡流脱离频率沿索塔高度变化，避免海风与塔体的自然频率相接近，进而能避免产生涡流激振的可能性，而且圆心位置不同，一方面考虑到空气动力学，减少气动力和风压的不均匀分布，另一方面是为了避免索塔的固有频率和风作为外部激励频率一致而出现共振的情况。
Special-shaped cable bent tower and construction method
一种异形索塔及施工方法
DAI QIANGBO (author) / FANG WENSHENG (author) / LIU GUOQIAN (author) / ZHU CHAO (author) / WANG LIZHONG (author) / CUI YIBING (author) / MIAO YULU (author) / JIA WEIJUN (author) / HU JIE (author) / YU RONGCHUN (author)
2024-06-18
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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