Bebelallee树屋，汉堡，德国

建筑设计：blauraum建筑设计有限公司

Architects: blauraum Architekten GmbH

Bebelallee树屋，汉堡，德国

建筑设计：blauraum建筑设计有限公司

Architects: blauraum Architekten GmbH

Treehouses Bebelallee, Hamburg, Germany, 2010

1 外景/Exterior view

2 改造前/Before rehabilitation

项目的任务是提高一处1950年代住宅区的密度。建筑位于城市边缘，环境优美。改造将以当代方式对原有住宅楼进行修整，并保留其原始历史特征，同时更新供能基础设施。

为保留居住区的开放性，决定向上增加若干层，提高原建筑的高度。项目的设计条件要求更新供能基础设施，并延续居住区原有的建筑和构造特征，同时新增楼层要满足可持续性建筑的要求。

新增的楼层决定采用预制木镶板的轻质结构，其优势在于相对紧凑的施工进度，将给原单元居民带来的噪音和干扰降至最低程度。

新的木楼层所有的墙板和天花板构件都是工厂预制的（包括矿棉保温材料），并在现场装配。

立面翻新的目标是对原建筑进行更新，以便长期出租，并传承德国北部的建筑文化：原立面上增加了外保温，并包新砖面——与过去的丹麦薄板规格相同，但色调不同。斑驳的光影让烧结砖展现出粘土材料的天然魅力。

原住宅楼阳台外贴人造黄色烧结砖和青绿面砖；现在改为手工模制砖，体现出古朴的质感。

上几层的立面以能形成天然变化的粗糙雪松片瓦做为立面材料。这样，新建筑的轻质特征就会一目了然；新的楼层从下方硕大的原有建筑上凸起，并呼应着周围树木的材质（故称树屋）。

新增的47个单元大多为复式。遵照树屋的概念，所有的公寓都设有宽敞的屋顶平台，而且复式公寓还有敞廊。

从配置和尺寸看，新公寓的平面设计特别考虑了家庭因素，而这是为了吸引未来的年轻租户。

总的来看，设计策略追求的目标是让住宅楼的总可用面积加倍，同时让碳排放减半。□（尚晋 译）

The task was to densify a residential district dating from the 1950s – which is attractively located at the edge of the city – in a contemporary way and to rehabilitate the existing housing stock without masking its origins or historic character, at the same time updating the energy infrastructure.

Opted for in order to retain the open character of the settlement was the addition of upper stories,a new development which heightened the existing structures. The design parametres for the project entailed updating the energy infrastructure in a way consistent with the settlement's existing constructive and architectonic character, while at the same time satisfying requirements for sustainable building in the additional stories.

The decision for the addition of new upper stories by means of lightweight construction in prefabricated timber paneling also featured the advantage of a relatively com-pressed construction schedule, and hence minimal noise and disturbance for residents of the existing units.

All of the wall panels and ceiling elements of the new wooden stories were prefabricated at the factory (including mineral wool insulation) and assembled on location.

The objective of the façade renovation was to upgrade the existing structures for the sake of longterm rental possibilities, and to support the building culture of northern Germany: the existing façades were given an external layer of insulation and clad in a new layer of exposed brickwork – a Danish thin format as before, albeit now in a different tone. In its variegated shadowing, the clinker brick brings out the natural character of the clay material.

The original estate, with its seemingly artificial yellow clinker and turquoise tiling as balcony cladding, was replaced by hand-molded brickwork featuring a rather archaic materiality.

The building material for the façades of the upper stories was wood, in the form of rough,split cedar shingles whose finish features qualities of natural variation. In this way, the lightweight character of the new construction is visible externally; the new stories are set off distinctly from the massive existing structures below, at the same time echoing the surrounding stands of trees in their materiality (treehouses).

The majority of the altogether 47 new units are configured as maisonette types. In keeping with the treehouse concept, all of the apartments enjoy spacious roof terraces, and the maisonette apartments have loggias as well.

In terms of configuration and dimensions, the plans of the new apartments are designed to be especially family-friendly, a measure designed to attract younger tenants in the future.

In general, the planning measures pursued the objective of doubling the estate's overall usable area while at the same time halving CO2emissions.□

3 图解/Diagram

4 总平面/Site plan

5 四层平面/Floor 3 plan

6 首层平面/Ground floor plan

7 外景/Exterior views

8 外景/Exterior views

9 剖面/Section

项目信息/Credits and Data

客户/Client: Robert Vogel GmbH & Co. KG

团队/Team: Volker Halbach（项目经理、负责建筑师/Managing director, responsible architect）, Rüdiger Ebel（经理/Managing director）, Carsten Venus（经理/Managing director）, Ron Hülsemeyer, Sven-Ole Kirstein工程团队/Team Planner: Engineering Office Dr.Binnewies, Engineering Office Ridder & Prigge GmbH & Co. KG, Engineering firm Schlegel &Reußwig, Engineering firm T. Wacker Mann GBR

项目/P r o j e c t: 6座住宅楼重修加固/Rehabilitation and reinforcement of six residential blocks

住宅单元数/Number of WHG: 151（含新建筑47套，翻新104套/thereof 47 new building and 104 refurbished stock）

施工程序/Building Procedures: 顶部增建轻质建筑，外立面工程/Topping-up: Lightweight construction, board-finished construction

建筑面积/Gross Area: 8800m2

施工时间/Construction: 2008-2010

摄影/Photos: blauraum建筑设计有限公司/blauraum Architekten GmbH

10 露台/The view from terrace

11 外景/Exterior view