和美桥，厦门，中国

Dissing+Weitling建筑事务所，施莱希工程设计公司

客户：厦门市市政建设开发有限公司

建筑设计：Dissing+Weitling建筑事务所

结构设计：施莱希工程设计公司

当地合作设计方：厦门市市政工程设计院有限公司

总承建：江苏省交通工程集团有限公司结构体系：单索吊桥

总长度：234.7m

悬空跨度：216.7m（曲线长度），202.2m（直线距离）

半径：167.7m

步道宽度：3.8m

桥面高度：1.2m

面积：940m²

支撑杆件高度：52.3m

Client:Xiamen Municipal Construction Development Co.,Ltd.

Principal Architect:Dissing+Weitling Architecture

Structural Engineer:schlaich bergermann partner

LDI:Xiamen Municipal Engineering Design Institute Co.,Ltd.

General Contractor:Jiangsu Provincial Transportation Engineering Group Co.,Ltd.

Type:Pedestrian bridge

Structural System:mono-cable suspension bridge

Total Length:234.7 m

Free Span:216.7 m (curved),202.2 m (straight)

Radius:167.7 m

Walkway Width:3.8 m

Bridge Deck Height:1.2 m

Area:940 m²

厦门和美桥是一座桥面呈弧形的单索吊桥，具有217m 的悬空跨度，是世界上同类桥梁中最长的。它在厦门山海健康步道项目的设计和施工方面都具有很突出的特点。和美桥是厦门市发起的长达23km 的厦门山海健康步道项目中的标志性桥梁之一，该项目旨在连接城市中心和岛内的周边环境。项目中，7 座设计不同的大跨度桥梁跨越现有的基础设施或自然地形，明显有别于常规人行步道的单调。

一条安全通道

和美桥位于项目中最显眼的位置，因为大多数来厦门的游客通过海沧大桥进入厦门岛时都会从桥下经过。桥的支撑杆件与桥面的雕塑般的外观呈现出欢迎到达厦门游客的姿态。它为仙岳公园和虎尾山公园之间的步行者提供了一个安全、无交叉的通道。它将桥上缓慢移动的行人交通与桥下17 条车道上高速移动的车辆交通分开。弯曲的桥面和谐地连接了桥两端的人行道。

针对特殊环境的设计

街道的布局和桥梁两端的陡峭斜坡限制了桥墩的可用空间，使其成为一个大交通岛。桥梁设计反映了这些独特的边界条件，只需要一个单索支撑杆件。弯曲的桥面与单索吊杆相结合，形成了一个可以支撑近217m 悬空跨度的结构系统。由于扭力和弯矩都相对较小，弯曲的桥面使采用纤薄的桥身截面成为可能。通过桥梁空心箱体部分的上翼缘的压缩环和下翼缘的拉伸环传递由偏心布置的悬索产生的旋转力矩。

轻型结构设计

精心设计的细节凸显了该桥的鲜明特性和背后的轻型结构设计理念。所有的细节都是精心设计的，暴露在外，并减少到结构允许的最低限度。因此，知识渊博的观察者可以读懂并跟踪力的传导，力通过拉索和钢结构工程到支撑杆件底部壮观的球形轴承。

Xiamen's Hemei Bridge is a mono-cable suspension bridge with a curved deck and a free span of 217 m– the longest of its type in the world.It stands out in terms of design and construction in the Xiamen Mountains-to-Sea Trail project.The Hemei Bridge is one of the signature bridges in the 23-kilometer-long mobility project Xiamen Mountains-to-Sea Trail (former Xiamen Health Footpaths) initiated by the City of Xiamen to connect its urban centres with the surrounding nature on the island.In this project,seven largespan bridges span over existing infrastructure or natural topology and their different designs are intended to stand out from the simplicity and repetitiveness of the regular footpath.

A Safe Passage

Hemei Bridge is located at the most prominent spot among them,as most visitors to Xiamen pass under the bridge when entering the Island via Haicang Bridge.The sculptural appearance of the bridge mast and bridge deck creates a welcoming gesture to visitors arriving to Xiamen.It provides a safe and intersectionfree passage for pedestrians between Xianyue Park and Huweishan Park.It decouples slowmoving pedestrian traffic on the bridge from the fast-moving vehicular traffic on the 17 lanes below.The curved bridge deck harmoniously connects the trajectories of the pedestrian walkway at both ends of the bridge.

Design for Special Surroundings

倾角：69°

竣工时间：2020.08

绘图：施莱希工程设计公司

摄影：RAWVISION studio

Mast Height:52.3 m

Inclination:69°

Completion Time:2020.08

Drawings:schlaich bergermann partner

Photos:RAWVISION studio

置身现场会感到设计的结论被证实，图纸上的效果被放大了。大桥与周围的环境融为一体，它的轻质结构、拉索和纤薄的桥面使大桥看起来好像毫不费力地悬浮在繁忙的街道之上。□（叶扬 译）

评审评语

厦门和美悬索桥全长217m，提供了一条几乎漂浮在空中的人行道和自行车道，为高速公路交叉口两侧的两个公园之间提供了一个安全的非机动车通行方式。这座桥横跨17 条车道，体现出毫不费力的优雅和杰出的材料智慧，将创新的工程变成了一种日常的奇遇。凭借其凌空高度、景观视野和优雅曲线，以及两个桥头的休憩场所，这个原本功能性的城市基础设施成为了真正的艺术品，为人们提供惊艳美景和非凡体验。在黑暗的隧道中穿越交通干线原本并不令人愉悦，却在这里成为了一种别致的体验，值得人们专程到访。

3 正立面Front elevation

4 平面Layout

The layout of the streets and the steep slopes at both ends of the bridge limit the available space for bridge piers to a large traffic island.The bridge design reflects these unique boundary conditions and requires only one guyed mast.Combining the curved bridge deck with a monocable suspension bridge results in a structural system that can overcome a free span of nearly 217 m.The curved bridge deck allows for a very slender deck cross-section,as both torsion and bending moments are comparatively small.The rotating moment created by the eccentrically arranged hanger cables is transferred through a compression ring in the upper flange and a tension ring in the lower flange of the hollowbox section of the bridge.

Construction of a Light-Weight Design

Carefully designed details underline the honest character of the bridge and the light-weight design philosophy behind it.All details are wellengineered,exposed and reduced to the structural minimum.Thus,the knowledgeable observer can read and follow the flow of forces through the cable net and steel work to the spectacular spherical bearing at the base of the mast.

A visit to the site amplifies the conclusions from the drawing board.The bridge fits into its surroundings and its light-weight construction with its cable net and slender bridge deck make the bridge seem as if it hovers effortlessly above the hectic streets.□

Jury Statement

The 217 m long Hemei Suspension Bridge in Xiamen provides an almost floating pedestrian and bicycle path that makes a safe connection for non-automobile mobility between two parks on either side of a junction of highways.Bridging 17 car lanes with effortless elegance and great material intelligence the project turns innovative engineering into an everyday adventure:with its height,views,elegance and curve,as well as places to rest on either bridgehead a piece of functional urban infrastructure becomes a thing of real beauty and provides an exceptional experience with amazing views.The otherwise unpleasant practice of having to cross traffic arteries in dark tunnels is turned into an exquisite occasion well worth a special visit.

5 侧立面Side elevation

6 球形轴承剖面Section of spherical bearing

7 鸟瞰Aerial view

8.9 近景Close views