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Cerdà在规划巴塞罗那扩展区（Eixample）时，最初选定了一个后来被称为“五钻广场”（Cinc d’Oros）的地点，紧邻Gràcia区。在这里，他让对角大道（AvenidaDiagonal）与格拉西亚大道（PasseigdeGràcia）相交，这两条轴线成为城市扩展的基础，并以此勾勒出网格结构。然而，在佛朗哥政权时期，该地点的象征性雕塑——代表共和国的雕塑——被彻底移除，五钻广场也不复存在。1957年，在一场汇聚加泰罗尼亚顶尖建筑师的竞赛后，德意志银行选中了当前这座建筑的方案。该建筑以庄严而宏伟的姿态矗立，并获得了建设许可，然而，它并不完全符合当时的城市规划规定。因此，在适应21世纪的新用途和需求时，唯一可行的改造方案就是在保持原有体量和轮廓的基础上进行调整。

Cerdà intended his plan for Barcelona’s Eixample to start out from a spot that would later be called the Cinc d’Oros—the Five of Diamonds—adjoining the barrio of Gràcia. In that location Ildefons Cerdà had Avenida Diagonal intersect with Passeig de Gràcia, the two foundational and main axes of the city’s expansion, and upon this schema he described the grid. Francoism eradicated the Cinc d’Oros as a location and eliminated the sculpture symbolizing the Republic. In 1957, following a competition in which some of the finest architects in Catalunya participated, Deutsche Bank chose the proposal for its bank building that has survived to this day. Hieratic and ostensibly monumental, the edifice obtained a license but remained outside current planning norms, due to which the only alternative when remodeling and adapting it to the new uses and demands of the twenty-first century would entail a remodeling which remained absolutely faithful to the volume and profile of the existing building.

▼项目概览，overall of the project © Joan Guillamat / Alejo Bagué

▼夜景立面，facade at night © Joan Guillamat / Alejo Bagué

新设计充分利用现有建筑结构，将其拆分为两个独立体块，并在它们之间创造了一条蜿蜒的通道，该通道从格拉西亚大道（ElsJardinets）延伸至对角大道上的半转向加布津会教堂（Pompeia），在RieradeSantMiquel与对角大道的交汇处形成一个小型广场。前方体量的结构采用青铜立面，并设有大面积玻璃窗，呈现出强烈的公共机构特征。该建筑将成为CasaSEAT的新总部，地面层设有挑高空间，整体共五层，并与周边建筑共同塑造了对角大道的城市界面。另一座独立的五边形建筑体量则去除了原本朝向方尖碑的一侧曲面，同时强调其曲线转角，使其四个立面保持连续性，而面向通道的背立面则为空白墙面，作为大型城市雕塑的背景，与通道的动态体验相呼应。

Its design draws on what is already there by cutting the building into two independent volumes that create a passageway which meanders between them from Passeig de Gràcia (Els Jardinets) to the half-turned Church of the Capuchins (Pompeia) on the Diagonal, forming a small square at the end of Riera de Sant Miquel at its meeting with Avenida Diagonal. The front volume with its bronze structural façade with large plate-glass windows and an institutional character, destined to become the new headquarters of Casa SEAT, has a split-level ground floor and five floors and intermediates with the neighboring buildings forming the frontage of Avenida Diagonal. The new stand-alone pentagonal volume eliminates its obelisk-facing curved side whilst delineating its curvilinear-shaped corners, arriving at a façade that is continuous on four of its sides, presenting its rear façade to the passageway as a blank wall, a support fora large-scale urban sculpture that will accompany movement along the passageway.

▼鸟瞰，aerial view of the project © Joan Guillamat / Alejo Bagué

▼塔楼立面，facade of the tower © Joan Guillamat / Alejo Bag

▼屋顶顶视图，top view of the roof terrace © Joan Guillamat / Alejo Bagué

建筑立面的框架结构置于原有建筑外围支撑之上，既能承受风荷载，又构建了清晰的网格秩序。距地面六米处的檐篷保持开放，既能为行人提供遮阳，尤其是在夏季，也能确保通透的视觉视角。同时，上层玻璃窗上的青铜丝网印刷进一步增强了遮阳效果。容纳楼梯、设备间和管线井的立面采用竖向青铜百叶处理。面对通道的第二体量作为住宅大堂的入口，成为新住宅塔楼的门户。这座塔楼在朝向格拉西亚大道和对角大道的两侧展现出极致的纤细感，并在端部进一步收窄。其结构采用珍珠色钢框架，框架内嵌入外推窗，使窗户与结构表面齐平，呈现出悬浮效果，同时映射出城市景观。

The framework forming the façade, placed on top of the building’s existing perimeter supports, absorbs the forces of the wind and constructs the compositional grid. Six meters from the ground, the canopy is open to the visual cone of the passer-by whilst offering protection from the sun, especially in summer, as does the bronze serigraphy of the windows on the upper floors. The façades housing stairways, service volumes and installation galleries are handled with vertical bronze louvers. Giving frontally onto the passageway, the second volume acts as an entrance atrium to the new lobby of the residential building. The tower block displays its great slimness on the façades that are side on to Passeig de Gràcia and Avenida Diagonal, becoming ever slenderer at its extremities. It is built with a pearly steel frame that accommodates in its recesses the butting windows, which, coplanar with the frame, appear as if suspended, reflecting the city.

▼地面层，ground floor © Joan Guillamat / Alejo Bagué

▼入口大厅，entrance hall © Joan Guillamat / Alejo Bagué

在塔楼与格拉西亚大道沿线建筑的衔接处，设计了一条后方服务通道，以解决垂直核心筒、设备空间及地下楼层的疏散问题。地下停车场的车辆出入口设于RieradeSantMiquel，通过两部大型汽车电梯进行上下通行。住宅塔楼的第六层设有公寓的附加配套设施，包括社交俱乐部、酒吧、商务中心、会议室及健身房。从该层可以通过一座轻质桥梁跨越通道，抵达前方建筑的花园露台，该露台为公寓住户专属使用。

In its rendezvousing with the neighboring buildings of the Passeig de Gràcia, a second rear services passageway will solve the issue of evacuation of the vertical nucleuses, the service spaces and the floors below ground. The vehicle setdown point of the underground parking is produced from Riera de San Miquel via two big car lifts. The sixth floor of the residential tower block is given over to add-on services for the apartments such as a social club and bar, a business center and meeting rooms or a gymnasium. From it one accedes by crossing the passageway via a lightweight bridge to the front building’s garden terrace, for the exclusive use of the residences.

▼后方服务通道，rear services passageway © Joan Guillamat / Alejo Bagué

▼仰视巷道，up-looking through the alley © Joan Guillamat / Alejo Bagué

▼立面细部，details of the facade © Joan Guillamat / Alejo Bagué

本项目的建筑材料选择使两座建筑在视觉上保持统一，同时通过功能上的差异化，使其各自的用途清晰可辨。新设计通过创建一条步行通道，在这个重要的城市核心地段提出了一个兼具复杂性与开放性的城市空间方案，使建筑既能区分新用途，又能向城市提供一个渗透性强、符合当代需求的设计。

The constructional materiality will enable both buildings to be understood as a single entity with the intrinsic differences of use of each of them. In doing so, the new project constructs a pedestrian passageway, an urban space which articulates a complex proposal at the same time as it differentiates the new uses and offers to the city a permeable and contemporary design in one of its most emblematic and central locations.

▼建筑外观黑白照片，black and white photo of the project © Joan Guillamat / Alejo Bagué

▼平面图，plan © OAB

Mandarin Oriental Residences, Barcelona
Architect: Carlos Ferrater (OAB)
Architectural collaborators: Núria Ayala (OAB) / Xavier Martí (OAB)
Location: Passeig de Gràcia 109-111 / Avda. Diagonal 446-448 (Barcelona)
Date: 2018-2022
Surface: 2.500m2
Photografy: Joan Guillamat / Alejo Bagué

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