巴拿马运河三桥景观与造型设计

发布时间：2018-08-17 09:13

【摘要】：巴拿马运河三桥是连接巴拿马北部、运河东岸科隆市的玻利瓦尔路和运河西岸加通路的一座跨运河大桥,全长2 667m,主跨530m,双向4车道,为双塔双索面斜拉桥,采用混凝土双箱主梁。通过对大桥桥址自然环境和地域文化的调查与分析,确定了大桥的造型设计元素——"V"形元素。在设计过程中,采用比例图解法,确定边跨与中跨比例为0.4,接近黄金分割比;在桥塔设计中,采用力线造型法,以环境调查获取的"V"形元素为桥塔的基本造型元素,创作出受力明确、视觉轻巧、造型新颖的塔型;辅助墩与过渡墩造型借鉴了桥塔下塔柱造型,造型简洁、承力明确;引桥桥墩造型同样借鉴桥塔下塔柱造型,并针对墩身比例效果进行高、中、低墩区的桥墩尺寸优化。全桥造型元素一致,景观风格统一,体现了当地自然与文化特征在现代桥梁景观与造型设计中的创新应用。
[Abstract]:The third bridge of the Panama Canal is a trans-canal bridge connecting the Bolivar Road on the eastern coast of the canal, Cologne, and the access road to the west bank of the canal. The bridge, with a total length of 2,667m and a main span of 530m, is a two-way four-lane cable-stayed bridge with two towers and two cable planes. Adopt concrete double box girder. Based on the investigation and analysis of the natural environment and regional culture of the bridge site, the "V" shape element of the bridge is determined. In the design process, the ratio of side span to middle span is determined to be 0.4, which is close to the golden section ratio. In the design of bridge tower, the force line modeling method is adopted, and the "V" shape element obtained by environmental investigation is taken as the basic modeling element of the bridge tower. Creating the tower shape with clear force, light vision and novel shape; the auxiliary pier and the transition pier model draw lessons from the tower column modeling under the bridge tower, the modelling is succinct, the bearing force is clear; the bridge approach pier modelling also uses for reference the tower column modelling under the bridge tower, The size optimization of piers in the area of high, middle and low piers is carried out according to the proportional effect of piers. The whole bridge has the same modeling elements and uniform landscape style, which reflects the innovative application of local natural and cultural characteristics in the modern bridge landscape and modeling design.
【作者单位】：长安大学公路学院桥梁工程研究所;同济大学桥梁工程系;中交公路规划设计院有限公司;
【基金】：中央高校基本科研业务费专项资金项目(310821151020) 交通运输部规范编制项目(厅公路字2010 132)
【分类号】：U448.27

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