摘要
斜拉桥是桥梁的常用形式,同时也是城市的重要景观甚至是地标建筑。但常见斜拉桥的塔柱多为H型或A型,塔肢平立面线性单一、造型重复。尤其对于城市桥梁而言,无法兼顾其通行和景观的双重功能。依托小砩桥工程,针对空间异形独塔斜拉桥结构,提高斜拉桥的高跨比,采用多曲线融合构成空间塔肢立面造型,并深入研究了其结构形式和力学特点,提供了详尽的设计参数,丰富了斜拉桥塔形方案,为今后同类斜拉桥设计提供了参考和借鉴。
As a common form of bridges,cable-stayed bridge is also an important landscape and even landmark buildings in cities.However,the tower columns of common cable-stayed bridges are H type or A type,the plane and elevation of the tower legs are linear singleness and the shape is repeated.Especially for urban bridges,the dual functions of traffic and landscape cannot be realized.Based on Xiaofei Bridge in this paper,the depth-span ratio is improved according to the cable-stayed bridge with space special-shaped single-tower.The elevation formation of spatial tower legs is formed by multi-curve mixing.Its structure and mechanical characteristics are studied deeply and design parameters are supplied in detail.The tower type scheme of urban cable-stayed bridge is enriched,which provides reference for the design of similar bridges in future.
作者
张超
Zhang Chao(China Railway 18th Construction Bureau Co.Ltd.,Survey and Design Instute,Tianjin 300222,China)
出处
《市政技术》
2022年第10期76-82,共7页
Journal of Municipal Technology
基金
国家自然基金项目(51908178)
国家自然科学基金(51378169)。
关键词
异形塔柱
独塔斜拉桥
景观设计
有限元分析
special-shaped tower column
single tower cable-stayed bridge
landscape design
finite element analysis
