玄天湖大桥桥式景观设计方案研究

Research on Bridge Form Landscape Design Scheme of Xuantian Lake Bridge

摘要:

为解决某高速铁路上跨玄天湖景观桥梁功能适配与景观融合的核心设计难题，并为同类工程提供技术参考，系统开展了八种桥式景观方案的比选工作。方案涵盖梁桥、V型刚构、空腹式梁拱、上承式拱桥、系杆拱、钢桁梁桥、独塔斜拉桥及矮塔斜拉桥。从结构性能、景观寓意及工程经济性等关键维度进行全面解析，结果表明：各方案在结构特性与美学表达上各具优势。其中，梁桥方案凭借其卓越的轨道适应性、优异的经济效益及与人文景观的协调融合，实现功能与美学的最优平衡，最终被确定为实施方案。通过系统研究，凝练形成高速铁路景观桥“功能-美学-环境”协同决策范式，为同类高速铁路桥梁设计提供了兼具实用性与科学性的技术支撑。

Abstract:

To address the core design challenges of functional compatibility and landscape integration for a high-speed railway bridge spanning Xuantian Lake, and to provide the technical reference for similar projects, a systematic comparison of eight landscape-oriented bridge schemes is conducted. The schemes cover the girder bridges, V-shaped rigid frames, open-spandrel beam arches, deck arch bridges, tied arches, steel truss beam bridges, single-pylon cable-stayed bridges, and extradosed bridges. A comprehensive analysis from key perspectives of structural performance, landscape symbolism and engineering economy is conducted. The result shows that each scheme exhibits the distinct advantages in structural characteristics and aesthetic expression, in which the beam bridge scheme achieves an optimal balance between functionality and aesthetics due to its strong track adaptability, excellent economic efficiency, and harmonious integration with the cultural landscape, leading to its final selection as the implementation solution. Through the systematical research, a “function - aesthetics - environment” collaborative decision-making paradigm is formed for high-speed railway landscape bridges, offering practical and scientific technical support for the design of similar bridges.