感谢 罗宇杰工作室 予gooood分享以下内容。更多关于：LUO studio on gooood.
Appreciation towards LUO studio for providing the following description:

▼视频，video

围墩振兴
Background: rural revitalization

江门古劳，因为特殊的滩涂地理，素有利用水域进行围墩渔耕的传统，由于水系、鱼塘在村落中占据了极大的场地、分割出很多地块，“桥”作为各区域连接体特别常见。随着大湾区城市群快速发展，大量村民放弃传统渔耕生活选择城市化栖居，以渔为生的水乡村落也在城市发展进程中慢慢消亡..

古劳水乡，是华侨城进行以乡村振兴为大背景的区域开发，意在保留围墩空间肌理的前提下，让城乡发展与村落历史文脉有机结合：维持水乡基本河域型态，将自然教育、亲子休闲和渔牧文化进行有机链接。这些业态的营造需要在必要的区域进行桥梁的搭建，方便人群、渔船的顺利通行。

▼木桥外观，external view of the timber bridge ©金伟琦

Due to the unique tidal flat landform, Gulou in Jiangmen City established the tradition of making use of the water system to dig ponds and form mounds for fishing and farming. As the water system and fish ponds occupy a large area and form a fragmented spatial pattern in local villages, many bridges have been built to connect the areas segmented by water. With rapid urbanization in the Guangdong-Hong Kong-Macao Greater Bay Area, many local villagers have abandoned the traditional fishing lifestyle in favor of living a more urban life. For this reason, water villages in which people make a living by fishing have been gradually disappearing.

Gulou Waterfront is an eco-cultural tourism resort developed by OCT in the context of rural revitalization, aiming to combine rural development with the cultural background of local villages on the premise of preserving the unique spatial fabrics featuring mounds and ponds. The resort maintains the form of the basic local water system while organically integrating nature education, parent-child recreation, and fishing & husbandry activities. Those operations in the resort require several bridges in certain areas, to facilitate the movement of people and fishing boats.

▼木桥与周边环境鸟瞰，aerial view of the timber bridge and its surroundings ©罗宇杰工作室

全木拱桥
Arched wooden bridge

渔耕文明时期陆路不畅，漕运是重要的通航、物流手段，桥上要通行、桥下也需要提供船只通航，“拱”可以获得更大的桥下通行空间，在中国造桥的传统方式中，选择“拱”营造可得结构效能极高，南方多河流也多林木，亦有以“木”造桥的传统。

During the fishing civilization period, roads were poorly developed, so water systems became the key route for transportation and logistics. Since bridges need to be walkable while also ensuring more space for boats underneath to pass through, traditional bridge construction techniques in China adopted “arches” to create space for the passage of boats under bridges, and enhance the effectiveness of the structure. Due to the abundance of woods, Southern China has the tradition of applying timber to build bridges.

▼横跨河面的木桥，timber bridge through the river ©金伟琦

木桥是古劳水乡众多桥梁中的一座，为了区别于城市化建设，重塑传统乡土文化，采取以“自然材-木料”进行“拱桥”建造。水乡除了渔民的小木船通行外，还提供有游客参访的大船，为了保证桥下各船只的顺利通行，两端承台拱底高于常水位1.35m、拱弦高2.8m，两者相加4 m余保障了桥体底部与水面的游船通行净高需求，桥拱跨度依地勘、结构合理的两岸间隔定为25.2m，通过结构计算和建造梳理，采取了三根曲木大梁作为主结构件、以2.7m的轴线间隔进行平行排布，每根大梁考虑到加工和运输的性价比，在合理的位置分隔成三段开“榫卯”加钢构螺栓连接，通过这三段小曲梁在现场施工拼合，组成完整的大拱梁。

▼分解轴测图
exploded axonometric ©罗宇杰工作室

This project is a timber bridge, which is one of the many in Gulou Waterfront Resort. To differentiate it from urban constructions and revitalize traditional rural culture, LUO studio adopted natural wooden materials to construct an arched bridge. The resort provides access for small fishing vessels, as well as large tour ships. To enable boats of various sizes to pass under the bridge smoothly, the load-bearing platform at the bottom of the arch which is 1.35m higher than the normal water level, combined with the 2.8m arched structure, forms a space more than 4m higher than the normal water level. This meets the clearance requirements for large tour boats to pass through. Based on geological surveys, the span of the bridge is set at 25.2m. Through structural calculation and construction analysis, LUO studio utilized 3 large curved beams as main structural components, which are arranged in a parallel manner with a 2.8 spacing between each other. With full consideration of manufacturing and transportation costs, each main beam was divided into three sections at appropriate positions, connected and assembled by steel-strengthened bolts on the site, to form the complete wooden beam.

▼渔船从桥拱下穿过，boat going through the arched bridge ©金伟琦

桥上设廊
Set covered corridor on the bridge

该桥位于一个密集的古商街区与儿童游乐园区的衔接处，与其它区位“开放性”景观桥的不一样的处理方式，采取了相对“封闭的廊空间”作为桥体的营造，强化和区别出两个完全不同的空间场域，让游览者在经过两个截然不一样的功能区有空间过渡的仪式感：从偏“实”的商业性街道——到偏“虚”的梦幻水乡儿童游乐区。

The bridge is located in the joint area between a dense traditional commercial street area and a children’s recreation area. LUO studio created a relatively “closed” corridor space on the timber bridge, which is different from other open landscape bridges in the resort. The aims were to accentuate the transition from the “practical” commercial street area to the relatively “dreamy” children’s recreation area, allowing visitors to feel a sense of ceremony in the moving process.

▼相对封闭的廊与周边环境
relatively “closed” corridor and the surrounding environment ©金伟琦

▼透过桥洞看向水街
view to the commercial area through under the bridge ©金伟琦

桥上架廊的起源很早，古人有记：“桥上架梁，梁上竖屋，结构才完；雨晒阳曝，桥梁几蠹，植易陶瓦，命工覆盖..”最初桥上廊屋为强化结构、防雨止潮，使木材保持干燥，可经久不腐，桥廊传统可追溯到春秋战国时期。古劳水乡木桥也遵循了传统木桥架设廊屋的这个建造智慧，通过廊的建造在结构上达到整体稳定性，同时也保护下面的拱木结构避免日晒雨淋。所处珠江三角洲西部地区雨水丰沛，在廊桥的外部采取了相对封闭的建造方式，廊空间外表皮选择金属板材进行层层叠覆的方式，获得有效的雨水遮蔽，也相应形成了一种更内聚感的廊空间。

▼表皮分解轴测图，exploded axonometric of the skin ©罗宇杰工作室

Constructing a covered corridor on bridges has been an old tradition that dates back to the Spring and Autumn Period and the Warring States Period. The initial intention was to strengthen the bridge structure, resist rain and moisture, keep the wood dry and prevent it from corrosion. This project also inherits the construction wisdom of ancient covered bridges. The covered corridor enhances the overall structural stability and protects the arched wooden structure beneath from exposure to sun and rain. The west area of the Pearl River Delta where the timer bridge is located has abundant rainfall, so the corridor was constructed in a relatively closed form. The exterior of the corridor space is covered by layers of metal plates, which effectively protect it from rain and also create a sense of cohesion for the space.

▼廊桥立面近景，closer view to the facade of the corridor bridge ©金伟琦

“廊”的建造
Covered corridor construction

小截面木料的次结构体系 | Sub-structural system formed by wooden components with small sections

除了承担桥体主荷载的三根大木拱梁截面为600mm*300mm外，其他的木料采取了小截面木料（100mm*100mm、100mm*50mm规格）的建造方式，将小木料于三根大主梁进行上下次梁咬接固定，再从这些小次梁的两端向上收合形成三角受力型态。

Apart from the three large wooden arched beams that bear the main load of the bridge body having a section size of 600mm*300mm, other wooden components adopt small sections. They are either 100mm*100mm or 100mm*50mm. Small wooden components are interlocked and anchored to the three main arched beams, functioning as sub-beams on upper and lower levels. In addition, the two ends of these sub-beams are combined with upward components to form a stable triangle of forces.

▼廊道结构剖面分析
structural sections of the corridor ©罗宇杰工作室

从桥顶俯瞰的平面图是完整方形，桥的侧立面“上-左-右”外轮廓也呈方形、只有“下”部顺应“拱”的型态自然取弧，这使得桥廊内部生成“高-低-高”空间渐变。在桥廊的两端由于空间高为了结构稳定在中段设置了横向连接杆件，基于这个结构必要措施搭放了两个观景平台，这平台也避免了从出口处就对廊桥内部一览无余的空间单调感。

The plane of the bridge’s roof is a complete rectangle. The top, left, right edges of the bridge’s side facades also consist of rectangular silhouettes, while only the lower edge is a natural curve. This generates height variations of the corridor space that is higher on the two sides and lower in the middle. To ensure the structural stability of the covered corridor space, the design team set horizontal connecting rods in the middle section and added two viewing platforms on either side, which also avoid the monotonous feeling when viewing the corridor space from the entrance and exit.

▼木桥入口
entrance of the timber bridge ©金伟琦

小截面的次结构体系，不仅使得廊空间内部有很好的结构构造感，也让穿行在桥底的游船乘客于桥下观看桥底也颇有建造匠艺细节的视觉体验。

The small-section sub-structural system not only enhances the sense of structure in the corridor space but also reveals the elaborate craftsmanship and details to visitors on tour boats and offers them a unique visual experience.

▼木制阶梯细部，details of the wooden steps ©金伟琦

构造模数&材料规格 | Construction modules & material specifications

小截面木料对应小间距排布，按照次结构梁每榀1000mm等分的轴线间隔，这个尺度可以很好的与台阶、外金属表皮的建造尺度相匹配。拱曲陡的地方形成三步台阶高度、拱曲缓的地方设两步台阶高度；外表皮金属板材在1000mm轴线尺寸内控制于900mm左右的边长尺寸，从加工、运输、人工安装等各工艺流程来说，都是非常适宜的大小；900mm的间隔也是单人于两框之间站立、倚靠、停歇比较适宜的尺度。

The small-scale wooden components are arranged with small spacing in between. The spacing between neighboring substructures is set at 1,000mm equally. This perfectly matches the scales of the steps and metal exteriors. Between neighboring sub-beams, three steps are set at the steep sections of the arch, while two steps are set at the gentle sections. The length of each external metal plate is controlled at about 900mm, which is appropriate for manufacturing, transporting, and installation. The 900mm length of timber frames also provides a suitable space for a single person to stand, lean, and rest.

▼尺度适宜的内部空间，inner space in human scale ©金伟琦

▼与金属表皮尺度匹配的结构梁，structure matching the scales of the metal exteriors ©金伟琦

顶光&侧缝、底隙 | Top light, side and bottom gaps

廊地面台阶上下层控制在70mm间隙，廊侧面的金属表皮上下叠压控制于200mm左右的透缝，廊顶部中央设置了一道1500mm宽窄的采光带：使得人从桥两端入口缓步进入桥廊时，目光可以透过台阶上下踏步间的狭小缝隙隐约感觉到廊桥之下的波光粼粼；在爬升桥体的过程中，上下金属板缝之间的折射亮光会吸引人透过侧缝向往观望，这种被“收藏”的观澜感，区别于其他的桥体开敞成为一种特别体验；当穿过两端的平台而达到廊的中央，顶部的光影被充分而全然获知，带给观者一种静谧、阔朗感觉，形成一个连续的“先抑后扬”空间秩序。

The neighboring upper and lower steps of the corridor have a clearance of 70mm. A gap of about 200mm is set in between layered metal plates on the exteriors of the corridor space. A 1,500mm-wide daylighting belt is set at the middle of the corridor roof. When walking slowly into the corridor space from the entrances at both ends, visitors can catch the sparkling water under the bridge through the narrow gaps between steps. As they continue to climb the bridge, the bright light refracted by the upper and lower metal plates attract them to look out through the side gaps. Such a special “collected” viewing experience distinguishes this timber bridge from other open bridges. While passing through the platforms from two ends to reach the center of the bridge corridor, visitors can fully experience the light and shadows from the top, feeling calmness and openness in the mind. Such design forms a continuous spatial rhythm that gradually reaches the climax.

▼天窗、侧缝、观景台
skylight, side gaps and sightseeing platform ©金伟琦

▼木桥夜景
night view of the timber bridge ©金伟琦

工业&手作
Industrialization and handwork

基于工厂产业化标准生产加工的材料，所需木料、金属都是现行工业技术手段，安装和施工过程除了大梁借助大型机械进行吊装，其他的后续施工环节兼顾“乡土”这个大的区域语境，完全由工人的双手即可搬运、安装完成，既有效的照顾了周围的交叉施工区域、也借助的工业化的高效、同时传达出了乡土温度和建造的在地性。

The materials utilized were manufactured and processed by factories based on industrialization standards, and all the necessary timber and metal components were treated by modern industrial technology and methods. During the installation and construction, only the three main beams were hoisted by large machinery. All other follow-up construction steps were fully adaptable and transportable through the hands of the workers in response to the local context. The whole construction process not only effectively harmonized with the surrounding construction sites and took advantage of efficient industrialized methods, but also conveyed rural warmth as well as the “localization” of construction.

▼施工过程，construction process ©罗宇杰工作室

▼总平面图，site plan ©罗宇杰工作室

▼平面图，plan ©罗宇杰工作室

▼立面图，elevation ©罗宇杰工作室

▼剖面图，section ©罗宇杰工作室

▼结构图，structure details ©罗宇杰工作室

项目名称：古劳水乡木桥
业主：江门华侨城投资发展有限公司
设计团队：罗宇杰工作室LUO studio
设计人（兼施工指导）：罗宇杰卢焯健王蓓蕾
结构顾问：栾栌构造设计事务所
施工组织：深圳市振辉建筑工程有限公司
木材供应方：上海圣特豪森木结构有限公司、辽宁金柏胜木结构科技有限公司
灯具供应厂家：广东流星宇数码照明有限公司
项目地址：中国广东省江门市古劳水乡
摄影师：金伟琦
视频制作：金伟琦肖石明
总面积：166平米
桥体尺寸（木结构部分长、宽、高）：25.2m*7.3m*8.6m
材料：松木、混凝土、铝板、玻璃
设计时间：2021年3
完工时间：2022年1月

Project name: Timber Bridge in Gulou Waterfront
Client: Jiangmen OCT Co., Ltd.
Design studio: LUO studio
Design/ construction instruction: Luo Yujie, Lu Zhuojian, Wang Beilei
Structural consulting: LaLu Structural Consulting
Construction firm: Shenzhen Zhenhui Architectural Engineering Co., Ltd.
Wood material suppliers: SHENGTEHAOSEN, KINGSPINE-HOUSE
Lighting fixture supplier: Meteor Shower
Location: Gulou Waterfront, Jiangmen, Guangdong, China
Photography: Jin Weiqi
Video production: Jin Weiqi, Xiao Shiming
Total spatial area: 166 sqm
Wooden bridge body size: 25.2m*7.3m*8.6m
Main materials: pine wood, concrete, aluminum plate, glass
Start time: March 2021
Completion time: January 2022

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