阿联酋阿布扎比市帝国大厦

地点：阿联酋阿布扎比Al Sorouh海岸

设计公司：凯达环球建筑设计公司

占地面积：7013m2

建筑面积：90206m2

高度：231m

层数：60

The Empire Tower is a 60 storey luxury residential development located in Al Sorouh Abu Dhabi, United Arab Emirates. The building occupies a prime site near the coast and is surrounded by three major streets while also emphasizing the vista afforded by this site. The complex is oriented to maximize the nearby ocean view to the northeast and overlooks the outdoor park to the southwest.

The building form is uniquely divided into a series of linear vertical blades, 9 total from ground level to level 12, the first 6 blades continue to the roof level 59. The blades are externally clad with a curtain wall containing insulated glass units which are thermally sufficient and will fulfil the local thermal insulation requirements of Abu Dhabi. At the same time, the color and reflectivity of the glass are chosen to make the tower stand out aesthetically in its vicinity.

The curvaceous form of the tower is the direct response to its site surroundings, maximizing its presence on the street with vertical layers spreading out to the property lines. The building then bends away from the street across from a large commercial tower, allowing for an enlarged view corridor between the central park of the community and the sea one block away. The splayed vertical layers converge while rising up before bending forward together as the 231m tower rises toward the sky and maximizing its views between the park and the sea.

The splays of the tower increase individual unit frontage and thus a larger cone of view. The southern facing balconies provide effective shading for the apartments below while the angle of the southern façade prevents from direct solar gain. In contrary the majority of the skin facing north is oriented at an angle to allow most efficient light impact. The curved overall tower section reflects easterly mid morning light which reduces solar gain as well.

The arrangement for private balconies is designed as a standard block which plugs into notched areas created between staggering blades. This facilitates repetition for balcony details for construction simplicity.

Although the tower is curvaceous in form, the external cladding is designed to standard modules where practicable, with the number of “bespoke” panels minimized to reduce cost. The various angles between faceted façade panels and constantly changing angles between corner façade panels are resolved by common connection means. The details utilize a pivoting point mechanism to allow flexibility and adaptation which significantly reduce the need for custom curtain wall profiles and panels.

The design also challenges structural conventions in terms of efficiency. Traditionally the shear walls are located along the inner side of the core. The design considers the structural efficiency by pushing the shear walls to the outer side of the corridor, therefore widening the structural base and reducing the span between the core and façade. This effectively reduces the structural depth and construction materials required for the structural members. The larger core also allows pressure to be transferred to the foundation over a larger footprint thus reducing quantities of concrete.

Despite the external appearance of the changing building geometry, the floor layout configurations are mainly standardized. For ease in construction and functionality the core is centralized and vertical despite the stacked floor plans shifting sideways.

The 60 non-typical floor plates are dynamically held together by the blades, creating an iconic feature on the water's edge. The design challenges the limitations for high-rise residential development, requiring the services and structural elements to stack vertically.

The project is designed to work within these limitations, while creating a dynamic form. These limitations are overcome by providing modular units on the Eastern and Western sides, allowing the shear walls and services to be stacked. These units continuously shift to form the blades, utilizing the views towards the waterfront. The modular units terminate on the 60th Floor, allowing the form to extend towards the sky. The smaller floor plates and reduced core size on levels 59 and 60 allow a unique duplex unit.

帝国大厦是一栋高60层的豪华住宅大厦，位于阿联酋阿布扎比市的Al Sorouh海岸。大厦被三条主干道所围绕，占据了海岸附近的黄金地段，同时也使这个地段的美景更为突出。大厦的朝向使人们在这里能最大限度地欣赏到附近东北方向的大海，俯瞰西南的户外公园。

大厦别出心裁地分为一系列的线性的垂直片状立面，其中9片从首层延伸到第12层，而最前面的6片则一直向上延伸到顶楼59层。片状立面的外部是包含有隔热玻璃部件的幕墙，隔热效果好，而且符合阿布扎比市当地对建筑隔热的要求。同时，玻璃的颜色的选择和反射效果让大厦在周围建筑中显得格外耀眼。

大厦的曲线美与周边相互呼应，以其延伸至建筑红线的垂直层向地基的周围环境最大限度地展示它的存在感。大厦从一条横跨一栋大型商业中心的大街处向外弯曲，使一条大型景观走廊展现在社区的中央公园和一个街区之远的海滨之间。张开的垂直层先往上汇聚再前俯，组合成了这栋231m高的大厦，直上云霄，使公园和大海的美景尽收眼底。

大厦向周围展开，增大了每个单位的正面，形成了更宽广的视野。朝南的阳台为下层的公寓提供了有效的遮阳，同时南立面的角度也阻挡了太阳直射。相反，大多数朝北的立面都被调整到一个可以获得最多的阳光的角度。整体弯曲的塔节也能反射东面来自上午的阳光，减少太阳直射。

私人阳台的布局被设计成标准单元，分插到错开的片状立面形成的凹口中，便于阳台细节的重复，让施工变得简单。

虽然大厦的外形很具曲线美，但是其外部覆盖层的设计采用了适用的标准模块，把“定制”壁板的数量减到最小，以降低成本。立面壁板之间的多变的角度以及角落面板间不断变化的角度，都通过常见的连接方式处理。细节处使用了铰链点装置，具有灵活性和适应性，明显减少了定制幕墙材料和壁板的需要。

设计还从功效上挑战了传统结构。传统的剪力墙一般放置在中心内侧，然而考虑到结构的功效，此次设计把剪力墙放置在通道的外侧，以扩大基础结构并减少中心和立面的跨度，有效地降低了结构的深度，减少了结构部件所需的建筑材料。更大的中心使压力转移到大型地基上，减少了混凝土的使用。

虽然建筑的几何外观是变化的，但建筑的楼层布局是按照标准安排的。为了便于建造和增强功能，不管平面图上堆叠的楼层如何倾斜，建筑的核心始终集中在同一垂直位置。

这60层非标准楼层被片状立面联系在一起，使其独具动感，创造了一栋海边地标。该设计挑战了高层住宅楼的局限性，把服务需求和建筑元素通过垂直堆叠的楼层结合在一起。

该项目就是在这些限制上进行设计的结果，创造出了动感的形态。通过建筑东、西两侧的模块化单位，设计克服了这些限制，使剪力墙和各种服务功能都结合在一起。这些单位不断推移形成了建筑的片状立面，尽览海滨美景。这种模块在60层戛然而止，使建筑形态向天空延伸。59层和60层由较小的楼层地板和缩小的建筑核心组成，被设计成一个独特的双层公寓。

FEATURE 特点分析

Shape

The huge sloped ground floor is like the root of a tree. The floors slope moderately in the opposite direction after the transition. The roof floor is near the boundary, which has characteristic “blades” to highlight the vertical volume. The side façade with nine sharp “blades” forms contrast with the soft front façade, which gives the dynamic façade full of strong visual impact.

造型

巨大的倾斜底层就像一棵树的根，楼层在过渡后向相反的方向适度倾斜，顶层靠近建筑红线，特色的“片状立面”外形强调了大厦的垂直体量，九片边缘锋利的“片状立面”形成的侧立面与建筑正立面柔和的轮廓形成对比，使建筑立面充满动感，具有强烈的视觉冲击力。