© Christopher Frederick Jones

克里斯托弗·弗雷德里克·琼斯

111号鹰街是布里斯班著名的河滨分局的三座塔楼的中心。它占据了一个地点，其中包括装载码头和地下室停车场，进入现有的相邻塔楼两侧。该网站的严重限制是，由于这些现有的障碍，缺乏轴承点。

111 Eagle Street forms the centrepiece of a trio of towers that mark Brisbane’s renowned Riverside Precinct. It occupies a site that comprises the loading docks and basement carpark access to the existing neighbouring towers either side. The site’s sever constraint was the lack of bearing points due to those existing encumbrances.

 Ground Level Plan

地面平面图

从这个约束演化出了一个结构解决方案，它定义了塔，一个由树干和树枝组成的网络，由一种叫做“向光生长”的算法发展而来。之所以选择这种算法，是因为它不仅比其他解决方案效率要高得多，而且还使一种与布里斯班最具标志性的无花果树相关联的特定于商业塔楼设计的架构得以发展，而布里斯班最具标志性的无花果树正是这棵树的前景。

From this constraint evolved a structural solution which defines the tower, a web of trunks and branches developed from an algorithm called ‘growing towards the light’. This algorithm was chosen as it was not only significantly more efficient than other solutions, but enabled a site specific architecture – rare in commercial tower design – to evolve, related to Brisbane’s most iconic Fig trees which foreground the site.

 © Stefan Jannides

(Stefan Jannides)

该大楼由54层楼组成，其中42层为办公大楼，基地超过两层，上层为公司通道，使地面成为内部公共广场和餐饮空间。

The tower comprises 54 levels, 42 of which are for offices, with the base over two levels, the upper for corporate access enabling the ground to act as internal public plaza and dining space.

 © Scott Needham

C.斯科特·李约瑟

该结构是设计为独特的阅读在夜间振荡照明，并在白天微妙地尊重哈里西德勒的相邻塔楼。另一个目标是创造一个新的塔建筑类型，它体现了‘亚热带河流城市’，它已经被公认的这一成就。

The structure is designed to be read distinctively by oscillating illumination at night, and subtly by day respecting Harry Seidler’s adjoining towers. A further aim was to create a new tower architectural typology which embodies the ‘subtropical river city’ and it has been universally recognised for this accomplishment.

 © Scott Needham

C.斯科特·李约瑟

概念框架客户的主要需求是一个商业塔，它吸引了公众，并适合城市的‘河滨’区的特殊建筑和空间。正是通过意想不到的约束-即工地上的小承载力-建筑与工程联合起来，才能创造出这样的结果。

Conceptual Framework The client’s key demands were for a commercial tower which engaged the public and befitted the city’s ‘Riverside’ precinct of exceptional architecture and space. It was through unexpected constraint – that of little bearing capacity on the site – that architecture and engineering united to create such an outcome.

 © Florian Groehn

弗洛里安·格罗恩

我们的理念是创建一座既被公众认可为属于亚热带，又被认为是特定地点的塔楼，这方面很少与商业写字楼联系在一起。实现这一理念的方法是利用约束的结构解决方案来创建一种建筑，以响应历史遗留下来的一个重要的自然景观元素-布里斯班的标志性CBD无花果树群。

Our philosophy was to create a tower that would be both publicly recognised as belonging to the subtropics and recognised as site-specific, this aspect rarely if ever associated with the commercial office tower. That philosophy was achieved by utilising the structural solution of the constraint to create an architecture that is responsive to the one significant natural landscape element remaining in the precinct from history – Brisbane’s cluster of iconic CBD fig trees.

我们的共同目标是推动办公大楼的环境性能边界，这是由结构几何学推动的，它产生了最低的材料需求。

Our mutual aim was to push the boundaries of environmental performance for the office towers, catalysed by the structural geometry which produced a minimum of material requirement.

 © Florian Groehn

弗洛里安·格罗恩

公共和文化福利-主要公共/文化福利-是公众和媒体对办公楼的普遍评价，极大地促进了布里斯班作为一个城市的文化特性。它日夜被认为是城市结构的丰富和活跃，从它的“公共”基础到它独特的天际线。一个直接的公共利益是塔基地，它从河滨广场和河岸广场“折叠”起来，形成自己的内部公共广场和餐厅，作为市内的一个避风港，以及从渡船码头到CBD的大量使用的大道。

Public and Cultural Benefits The primary public/cultural benefit has been the universal public and media appraisal of an office tower contributing dramatically to the cultural identity of Brisbane as a city. It has been recognised by day and night as enriching and enlivening the urban fabric from its ‘public’ base to its distinctive skyline. A direct physical public benefit is the tower base, which ‘folds up’ from the Riverside and Riparian plazas to form its own internal public plaza and restaurant as a retreat in the city and much-used thoroughfare from ferry terminal to CBD.

 © Florian Groehn

弗洛里安·格罗恩

建筑形式与背景的关系形成了一个独特而又免费的中心元素，与其标志性的西德勒设计的邻居，这三座塔依次下台。它的计划是为了强调这三座塔一起工作的几何学。这个结构被设计成几千种算法中的一种，被称为“向光生长”，因为它还与主导河滨分局前景的无花果树的结构和上升的窄度产生了协同作用。

Relationship of Built Form to Context The tower forms a distinctive yet complimentary central element with its iconic Seidler-designed neighbours, the three towers stepping down in sequence. Its plan is shaped to accentuate the geometries of the three towers working together. The structure is designed to one of several thousand algorithms explored for efficiency, it being called ‘growing toward the light’, chosen because it also created a synergy with the structure and ascending narrowness of the branches of the fig trees that dominate the Riverside precinct’s foreground.

 Skyrise Floor Plan

天台平面图

方案解决设计满足客户的愿望，尽可能大的地板，在圣约约束下，原来的Seidler领导的分局总计划，优化的地板效率。这一比例从81%到86%不等，远远超过了客户的目标。客户的另一个主要愿望

Program Resolution The design meets the client’s desire for as large a floorplate as possible within the covenant constraints of the original Seidler-led precinct master plan with optimised floorplate efficiencies. These range from 81% to 86%, more than fulfilling the client’s targets. The client’s other major aspiration – for a tower that surpassed the service, movement and office space experience of all existing office towers in the CBD was achieved both by commitment to design refinement and by an unusual level of client collaboration.

 © Christopher Frederick Jones

克里斯托弗·弗雷德里克·琼斯

联合学科显而易见的是建筑师和关键结构工程师特里斯特拉姆·卡弗雷之间的合作。这个设计是二十多年来在与他的几个结构上成熟这种关系的结果，最显著的是库里尔帕大桥和新加坡赫利克斯桥。

Allied Disciplines The obvious is the collaboration between architect and key structural engineer Tristram Carfrae. The design is the outcome of over twenty years of maturing this relationship over several structures with him, most notably the Kurilpa Bridge and Helix Bridge Singapore.

艺术家/设计师亚历山大·罗兹斯顿参与了名为“呼吸”的建筑照明项目，桑德拉·塞利格创造了菲利普·约翰逊餐厅底层的背景。

The artist/designer Alexander Loterzstain was engaged in the lighting program of the structure, entitled ‘Breathe’, and Sandra Selig created the backdrop to the ground floor Philip Johnson restaurant.

 © Christopher Frederick Jones

克里斯托弗·弗雷德里克·琼斯

成本/价值结果-54层大楼提供了超过44层的62，000平方米办公空间，建造费用为3.41亿美元，非常有效的价值为每平方米5，500美元，用于6星级高级绿星办公大楼。这一效率主要是由于综合结构和办公空间效率。

Cost/Value Outcome The 54 level tower, providing 62,000m2 of office space over 44 levels, was constructed for $341 million, at a very efficient value of $5,500/m2 for a Premium Grade, 6 Star Green Star office tower. This efficiency is primarily due to combined structural and office floorspace efficiency.

 © Florian Groehn

弗洛里安·格罗恩

可持续发展111鹰街被认可为6星绿星(v2办公室)设计等级和5星NABERS能源评级。尽管取得了这些成就，但人们认识到，仅靠最高的评级水平并不能证实可持续的建筑。

Sustainability 111 Eagle Street is accredited to 6 Star Green Star (v2 Office) Design rating and 5 star NABERS Energy rating. Notwithstanding these achievements, it is recognised that the highest rating levels alone do not substantiate awardable sustainable architecture.

 © Stefan Jannides

(Stefan Jannides)

这座塔的基本区别在于它彻底地重新发明了高层塔的结构，比传统的塔少了20%的材料，它体现了自然的进化和表现形式。这种结构被提炼成一种叫做“向光生长”的算法-这是这种算法在塔楼设计中的第一次使用-使它能够在上升时缩小到顶部300毫米正方形的柱子。结果是特定地点的回报与两棵历史上的无花果树在塔的前景，供大家体验。

The fundamental differentiation in this tower is that it has radically re-invented high rise tower structure in a way that utilises 20% less material than a conventional tower, and that embodies nature in its evolution and its expression. The structure is exacted to an algorithm called ‘growing towards the light’ – the first use of such an algorithm in tower design – enabling it to diminish in size as it rises, to columns of 300mm square at the top. The result is a site-specific reciprocation with the two historic Fig trees in the tower’s foreground for all to experience.

 © Christopher Frederick Jones

克里斯托弗·弗雷德里克·琼斯

这座建筑和它的公共空间得到了公众的欢迎，不仅因为它的表达方式，也因为它在丰富城市社会领域中的作用，特别是由于地面作为公共广场的作用。这是通过将公司层面提升到阁楼来实现的，使地面层成为Seidler发起的河滨广场空间的延伸，所有人都可以进入。

The building and its public spaces have gained an immediate public embrace, both for its expression, and for its role in enriching the social realm of the city due in particular to the ground plane acting as public plaza. This is achieved by elevating the corporate level to a mezzanine, enabling the ground level to be an extension of the Seidler-initiated Riverside Plaza spaces, accessible to all.

该塔外墙的详细分辨率完成了一个整体可持续性解决方案，整合了结构、太阳能防晒霜、优化的日光穿透和周界新风进气量在一个系统中。该系统与燃气三联产，使余热产生建筑物的冷却水，伟大的水成分也被处理和分布在整个塔。总之，111号鹰街是可持续商业塔建筑的有形、视觉和社会体现。

The detail resolution of the tower’s façade completes a holistic sustainability solution, integrating structure, solar-responsive sunscreens, optimised daylight penetration and perimeter fresh air intake in the one system. This system couples with gas-fired Trigeneration enabling the waste heat to produce the building’s chilled water, the great water component being also treated and distributed throughout the tower. In summary, 111 Eagle Street is a physical, visual and social embodiment of sustainable commercial tower architecture.

Architects Cox Rayner Architects

Location 111 Eagle Street, Brisbane, Australia

Category Office Buildings

Project Director Jayson Blight

Design Director Michael Rayner

Concept Designer Philip Cox

Senior Designer Michelle Fitzgerald, Spyros Barberis, Kim Huat Tan

Senior Architect Shane Horswill

Project Team Steve Hunter, Vesna Lazarevic, Jee Heng, Samantha Ritch, Sophie Benn, Tara Ram, Zile Zolte

Area 64000.0 sqm

Project Year 2012

Photographs Christopher Frederick Jones, Florian Groehn, Stefan Jannides, Leon McBride, Scott Needham