建筑设计/景观设计  goa大象设计

施工图设计  宁波万豪空间结构工程有限公司、浙江恒欣设计集团股份有限公司

项目地点  浙江杭州

竣工年份  2024年

建筑面积  8,500平方米（改造部分）

本文文字由goa大象设计提供。

“以新技术与新材料诠释地域文化，平凡的存量建筑也可以重构为独特的空间，在城市中重现‘自然风景’。”

“By reinterpreting regional culture through innovative technologies and materials, existing structures can be transformed into unique spaces that create ‘natural landscapes’ within urban contexts.”

——田钰，goa大象设计总建筑师

重塑中庭空间，从天井到生动的森谷

From Regular Courtyard to “Forest Valley”

博多森谷产业园位于杭州良渚新城，四座10—13层的L型布局高层办公楼围合出一处面积约4000平方米的中央庭院。靠近地面的三层为商业空间，通过围绕中庭的“回”字形连廊串联。

Located in Liangzhu New City, Hangzhou, the Business Center of Boduo Sengo features four L-shaped high-rise office buildings enclosing a 4,000 sqm central courtyard. The lower three floors house commercial spaces interconnected by a loop corridor surrounding the courtyard.

业主期待中庭成为使用者共享的中心花园，但建筑基本落成后的空间体验并未充分满足预期：串联商铺的笔直连廊缺乏变化，行走体验漫长而乏味；原有的中庭窄边宽度仅为28米，塔楼则高约71米，中庭空间因此呈现天井式的压抑观感；冬季在中庭缺乏日照，阳光直射的月份则是杭州气温最为炎热的夏季；在雨天，无遮盖中庭的使用率也会急剧下降。

The owner envisioned the courtyard as a shared garden for all users, but the original space after construction fell short of expectations: The straight corridor linking shops lacks variation, resulting in a tedious walking experience. With a narrow width of 28m and surrounding towers reaching 71m in height, the courtyard evokes the constrained sensation of an enclosed well. Courtyard receives no direct sunlight in winter, while in summer—when Hangzhou experiences its hottest temperatures—the space suffers from intense solar exposure. During rainy days, the uncovered courtyard remains underutilized.

因此，业主希望通过一次高效率、短周期的更新，将项目重构为宜人的空间。goa大象设计接受委托，承担了中庭、入口与景观的改造设计工作。对建筑师而言，博多森谷的改造是一次“非常规”的城市更新——目标是建成不久的建筑，因此需要在减少干预既有结构的基础上进行小范围加建，但其效果必须足以令空间体验产生质变。

Therefore, the owner aims to transform the complex into a pleasant space through a short-cycle renovation. GOA was commissioned to redesign the courtyard, entrances, and landscape. For the architects, this renovation project represents an unconventional urban renewal — targeting a recently completed building that requires minimal structural intervention yet demands qualitative transformations in spatial experience.

建筑师提出在中庭上空覆盖一座透光的半开放天幕作为“顶棚”，以在提高耐候性的同时延续光照、空气等开放空间的自然要素。在日照强烈的夏季，半透明的天幕可以滤过直射的阳光，并在庭院四边入口处对流风的吹拂下确保中庭凉爽舒适；在冬季，天幕则可以减少热量散失以保持环境温暖，并确保雨雪天气时中庭空间的可使用性。

The primary challenge lies in enhancing weather adaptability while maintaining spatial continuity with the external environment. The architects proposed installing a translucent canopy over the courtyard as a "shelter". In summer, the canopy filters direct sunlight while allowing cross-ventilation from courtyard entrances, creating a cool microclimate. The structure also minimizes heat loss in winter and maintains usability during rain/snow through its thermal buffer zone effect.

钢结构与膜材料的协奏，赋予视觉平等权

Steel-Membrane Canopy

建筑师希望进一步将中庭与环绕的商铺一体打造成独特的公共空间，而非办公塔楼千篇一律的功能附属，并为此转向在地文化寻求灵感。以业主的品牌理念为出发点，受杭州周边丘陵上起伏连绵、种植茶树的梯田启发，改造方案将天幕塑造成阶梯般错落有致的“森谷”。在空间的水平边界被办公楼围合限定的前提下，茶山般起伏的形态创造了竖向的空间变化，改善了行走与停留的体验。

Architects sought to integrate the courtyard with surrounding commercial areas into a distinctive public area by drawing inspiration from local culture. Starting from the client's brand philosophy and inspired by the terraced tea plantations on Hangzhou's hills, the renovation shapes the canopy into a "Forest Valley". The undulating terrace-like form creates vertical variations within the horizontally confined space defined by the surrounding buildings, improving experiences.

“茶山”赋予了园区使用者平等的视觉权利：天幕遮蔽了高耸的塔楼，在内部感受到的中庭不再是狭窄压抑的“天井”；四层以上面向中庭的办公人群同样获得了宜人的视觉观感，有如俯瞰碧绿的茶田。

The design also grants equal visual rights to all users: the canopy obscures the office towers, transforming the internal perception of the courtyard from a narrow "well" into a holistic space. Office workers above the fourth floor facing the courtyard also gain pleasant visual perspectives akin to overlooking verdant tea fields.

中庭天幕的造型设计复杂而精细。改造设计开始时项目已基本竣工，中庭的支撑结构因此只能落在地下室的顶板上。为在有限的冗余荷载范围内实现设想，设计师选择了轻质的膜材料配合钢结构框架构建天幕，其所需的结构加固程度小于玻璃等传统材料，可塑性强，并可以借助雨水冲刷完成自清洁，降低了日常维护成本。

The canopy's complex form demanded precise engineering. As the original construction was completed when the renovation began, the supporting structure had to be anchored to the basement roof. To realize the design within a limited load-bearing capacity, the team selected lightweight membrane materials combined with steel frames. This system required less structural reinforcement than traditional materials like glass, offered greater plasticity, and utilized rainwater for self-cleaning, reducing maintenance costs.

从空中俯视，天幕的膜材料为两部分，强透光性的白色气枕近似透明，将柔和的光影投射在中庭内部；绿色的多层膜结构则比拟茶山。如同张开的“阳伞”，以近似梯田的方式切分，层次间的空隙改善了中庭的通风与排烟性能。

Aerial views reveal two membrane components: white transparent cushions projecting soft light into the courtyard and green multi-layered membranes evoking terraced tea plantations. Functioning like "parasols", the interlayer gaps improves ventilation and smoke exhaust.

设计团队与结构顾问合作，解决了大跨度钢膜结构设计中的诸多技术难点：钢结构跨度大，截面形式多样，整体呈曲面布置等。为了进一步优化设计，团队在局部采取了ETFE+PTFE双层膜结构，网格内膜可以吸收噪声，并提高能源利用效率。在多轮比选后，团队选定了50%、40%与35%透光率的三种绿色气枕膜，依次分层布置，形成山水重叠般的渐变视觉效果。为避免积水，排水系统巧妙地隐藏于结构内部。天幕具有细微的坡度，可借助重力使雨水流向气枕间的分缝并排向地面。

The architect collaborated with structural consultants to resolve technical challenges in the large-span steel-membrane structure design, including extensive span lengths, diverse cross-sectional forms, and curved configurations. To further optimize the design, a dual-layer ETFE+PTFE membrane system was implemented in specific areas, with the grid-patterned inner membrane providing noise absorption enhancement. After analyses, three green air-cushion membranes with 50%, 40%, and 35% light transmittance were selected, creating a gradient visual effect resembling an overlapping landscape. The drainage system was ingeniously concealed within the structure, while a subtle slope allowed gravity to direct rainwater through seams between cushions to the ground.

景观与入口更新，亲切不拒斥的城市界面

Welcoming Urban Interface

根据业主的设想，博多森谷的中庭将成为一片功能灵活可变的场地，平日作为商店的外摆区域，保留了拓展为可容纳展会等聚集活动的可能性。天幕覆盖下，环绕原有建筑内立面的外廊内部挑出了露台，成为了室内空间自然延展，丰富了原本规整的方形空间。走廊转角处的细致优化使行走体验变得富有趣味。庭院内部围绕森谷的主题增添植被，和“茶山”共同形成自然温馨的氛围。

Per the client's vision, the courtyard will serve as a multipurpose space — functioning as extended seating for shops daily while retaining capacity for exhibitions and events. Beneath the canopy, terraces extending from the building's inner facades become natural spatial extensions, enriching the original square layout. Detailed optimizations at corridor corners create engaging circulation experiences. Themed vegetation enhances the "Forest Valley" concept, combining with the "tea mountain" forms to cultivate a natural ambiance.

原状建筑在四个方向分别设有内凹的入口。改造后的入口则通过大尺度的屋檐出挑，强化了空间特质。与景观花台和水幕结合，引导访客的视线与行走路径。对于公共空间而言，让来访者感到“受欢迎”是必要的特质。然而，原本的绿化设计中，建筑周边被停车场与消防登高场地的硬化地面占据，往往需要绕过漫长的绿化带才能找到入口。重新设计的景观则实现了人车分流，重构了建筑与城市的交界关系。

The original building featured entrances on four sides. After renovation, the entrances now emphasize spatial identity through cantilevered eaves, integrated with plants and water curtains to guide visitors’ sight and path. While accessibility is essential for public spaces, the original site was dominated by parking lots and fire access zones, forcing pedestrians through lengthy green buffers. The redesigned landscape achieves pedestrian-vehicle separation, redefining the building's urban interface.

设计图纸 ▽

完整项目信息

项目名称：博多森谷产业园改造

项目地点：浙江省杭州市

业主：浙江博多控股集团有限公司

建筑设计/景观设计：goa大象设计

施工图设计：宁波万豪空间结构工程有限公司、浙江恒欣设计集团股份有限公司

设计/竣工年份：2023/2024

建筑面积：8,500平方米（改造部分）

摄影：Daily建筑摄影-刘国威

版权声明：本文由goa大象设计授权发布。欢迎转发，禁止以有方编辑版本转载。
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