Education Executive Agency & Tax Offices / UNStudi_卞云朋

Photo© Ronald Tilleman

全面有力的控制了所有细节和专业。同时是欧洲最节能的建筑之一。

非常感谢设计方UNStudio将英文介绍和项目图片授权gooood发行。
Appreciation towards UNStudio for providing the following description:

Photo© Ronald Tilleman

UNStudio/ Ben van Berkel, with consortium DUO², realizes one of the most sustainable large
office buildings in Europe for two governmental offices

A greener approach to tall buildings in the post-iconic age -
The Education Executive Agency and Tax Offices move to one of Europe’s most sustainable
offices

A new, 92 meter tall complex of soft, undulating curves marks the skyline of Groningen. This
asymmetric, aerodynamic construction is set amidst small, ancient woodland, sheltering rare
and protected species. The project includes the design, construction and financing of two
public institutions; the national tax offices and the student loan administration. The commission
from the RGD (National Buildings Service) includes, besides the architecture, the
management and building maintenance and care of facilities and services for a period of 20
years. Accommodating 2,500 workstations, parking facilities for 1,500 bicycles and 675 cars in
an underground garage, the building will be surrounded by a large public city garden with pond
and a multifunctional pavilion with commercial functions.

The architecture aims to present these institutions with a softer, more human and
approachable profile. Tall buildings are generally associated with mid-twentieth century
modernism. Their harsh, businesslike exteriors contain powerful, inaccessible-seeming
strongholds. By contrast, the DUO and Tax offices deliberately cloak a commanding public
institution in an organic, friendlier and more future-oriented form.

"We paid a great deal of attention to how people would move through the building. The office
spaces are designed in such a way that they do not create simple linear corridors leading to
dead ends, but instead each corridor has a route which introduces a kind of landscape into the
building. You can take endless walks through the building, where there is a great deal of
transparency, also towards the surrounding landscape.”
Ben van Berkel

Photo© Ronald Tilleman

Attainability; a mix of affordable and responsible – reaping material benefits of integral design
and construction with a Design Build Finance Maintenance Operate contract

The governmental office complex is built as part of a far-reaching form of public-private
partnership (DBFMO) that is designed to effectuate on a more efficient use of public funds.
The design, construction, financing, managing and maintenance of the building was hosted by
one consortium consisting of Strukton, Ballast Nedam and John Laing. This consortium won
the competition for the project on the basis of a combination of esthetic, technical and financial
criteria. UNStudio, as the architect of the project, collaborated with Lodewijk Baljon for the
landscape design, Arup for the engineering and Studio Linse as the interior advisor.

The life-cycle approach of a DBFMO contract requires that all relevant experts (designers,
lawyers, installation specialists, financial specialists, facility specialists) are involved from the
start of the project in order to find the best, most cost effective and environmentally-friendly
solutions for the continued use and maintenance of the building. This working methodology
stimulates not only creative and innovative ideas, but facilitates a reduction of total costs over
the entire contract period compared to the traditional means of contracting. In PPP projects
contracts are not awarded to the lowest bidder, but to the party with most effective solutions
providing the best value for money.

“In a PPP-construction you have to consider all the details concerning maintenance and the
sustainable use of the building from the very early stages. It is a unique way to gather all the
specialists and the end user around the table from the very outset of the project.”
Ben van Berkel

Photo© Ronald Tilleman

Exemplary sustainability

“The design contains numerous new innovations related to the reduction of materials, lower
energy costs and more sustainable working environments. It presents a fully integrated,
intelligent design approach towards sustainability.”
Ben van Berkel

The project is one of Europe’s most sustainable large new office buildings. The RGD brief
prescribed a future-proof building that couples flexibility and sustainability with an esthetic of
sobriety. The architectural response to this has been to strive for an all-round understanding of
the concept of sustainability, including energy and material consumption, as well as social and
environmental factors. Thus the sustainability manifests itself in reduced energy consumption
(EPC 0.74), as well as significantly reduced material consumption. Bringing back the floor
heights from 3.60 m to 3.30 m resulted in a total reduction of 7.5 m on the entire building,
which also lessens the impact of the building on the surroundings. Both inside and outside the
architecture generates a bio-climate that is beneficial to both humans and the local flora and
fauna.

All-round architectural sustainability: a sum of many parts

Fins
Sustainability and energy reduction have steered the design of the facade, which contains
technical installations that are tailored to be durable and cause minimal environmental impact.
The facade concept integrates shading, wind control, daylight penetration and construction in
fin-shaped elements. These horizontal fins keep a large amount of the heat outside the
building, reducing the requirement for cooling.

Concrete core activation
Another technical feature of the building that contributes to its sustainable character is the
combination of concrete core activation and underground long term energy storage. This
appreciably reduces the demand for external energy sources.

Individual climate control for each workspace
Creating a healthy, energy efficient interior climate and employee workspace comfort was also
an important element in the design. Plenty of natural daylight and adjustable heating,
ventilation and access to fresh air for individual workspaces contribute to the comfort of the
workspaces throughout the building.

The 11th floor
A high pressure ventilation system with natural air inflow and outflow via main engineering
shafts and the facade grills on the 11th floor reduces the need for artificial ventilation

Future possibilities
In addition, the residual energy of the data center and offices can be used to heat the homes
that will be realized in the future in the perimeter of the site.

Flexibility
And last, but not least, the building is designed so that it can be transformed into housing in the
future without major structural modifications. Therefore, the locations of elevators, stairs and
technical spaces have been carefully considered, and a structural grid of 1.20 m. has been
deployed, rather than the conventional office grid of 1.80 m.

Conclusion
The inclusion of diverse passive and active environmental and energy efficient solutions has
led to a building which is one of the most sustainable office buildings in the Netherlands.

Photo© Ronald Tilleman

Data:
Client of the consortium:
Dutch Government Buildings Agency (RGD)

Client UNStudio:
Consortium DUO² (Strukton, Ballast Nedam, John Laing)

Program: Office building (phase A); underground parking (phase B); public city garden, pavilion (phase C)

Building surface: 48.040m² offices, 21.000m² parking, 1.500m² pavilion
Building volume: 215.000m³
Building site: 31.134m²

Credits UNStudio:
UNStudio: Ben van Berkel, Caroline Bos, Gerard Loozekoot with Jacques van Wijk, Frans van Vuure, Lars Nixdorff and

Jesca de Vries, Ramon van der Heijden, Alicja Mielcarek, Eric den Eerzamen, Wendy van der Knijff, Machiel Wafelbakker,

Timothy Mitanidis, Maud van Hees, Pablo Herrera Paskevicius, Martijn Prins, Natalie Balini, Peter Moerland, Arjan van der

Bliek, Alexander Hugo, Gary Freedman, Jack Chen, Remco de Hoog, Willi van Mulken, Yuri Werner, Machteld Kors, Leon

Bloemendaal, Erwin Horstmanshof.

Designteam:
UNStudio, architecture and interior
Studio Linse, interior
Arup, structure, installations
Lodewijk Baljon, landscaping
Buro van Baar, wayfinding
YNNO, internal logistics

Consultants:
DGMR, acoustics
EFPC, fire prevention
Ingenieursbureau Wassenaar, prefab structure
BTS Bouwkundig Tekenburo Sneek, drawing agency
ISS Nederland B.V, maintenance
Peutz, environmental technology
WUR (Wageningen University & Research centre), ecology
Strukton Bouw en Vastgoed, management and costing
Strukton Betonbouw, construction
Strukton WorkSphere, installations

Financial:
John Laing Infrastructure Limited, financial
RBC (Royal Bank of Canada) Capital Markets, financial
TCN SIG Real Estate Strukton Vastgoed, pavilion development
Allen & Overy LLP, legal
Sequoia, legal

Photo© Ronald Tilleman

超环保，高层建筑新时代-----这个容纳教育执行机构和税务机关的办公楼是欧洲最可持续的办公建筑之一。

一条高92米的起伏曲线重新定义了格罗宁根的天际线。场地位于一块不大的珍惜保护林地中，内部是两个公共机构，国家税务机关和学生贷款管理中心。建筑可容纳2500名办公人员，1500辆自行车，675辆汽车（地下车库）。建筑周围是大型城市花园和商业性多功能展馆。

建筑的外观柔和，平易近人，与20世纪中期硬朗，冷冰，强权式的建筑外观形成对比。这座建筑是友好并且未来的公共建筑。

“我们非常关注人们在建筑中的移动体验，并不创造死角以及进行简单的线性设计，而是将景观引领进每一条路线，你可在里面尽兴的散步，建筑同时保证透明度以与周围的景观互通。”
Ben van Berkel

可达，经济，负责---贯穿建筑从设计到施工等等全部过程。
政府公共办公楼里也有部分私人区域，旨在达到将公共财产可以更有效利用之含义。设计，建筑，融资，管理，维修等综合调控由Strukton, Ballast Nedam 和John Laing财团负责. UNStudio是项目的建筑设计单位，景观设计单位为Lodewijk Baljon，结构设计单位是奥雅纳，室内设计单位是Studio Linse。
各家单位在一起协同合作，从项目初始就开始参与，以求找到最佳，最经济，最环保，最低耗费的解决方法。这样也能激发创意，降低成本，减少施工期。不考虑最便宜的方式，而是考虑最有效的方式，这样才能提供最佳经济效益。

“在这样一种端对端的模式下，你需要从项目的最开始就考虑所有的细节并使其可持续化，这是一种考虑所有参与其中的专家和实际用户的独特方式。” Ben van Berkel

可持续典范
“设计包含了许多创新：减少用材，降低能源成本，制造更可持续的工作环境。提出了一种完全的集成化，智能化的可持续性设计方法。” Ben van Berkel

这是欧洲最可持续性的建筑之一，对可持续，能源和物质消费观念有着全面理解，并为社会和环境改善而努力。具体体现：减少能源消耗（EPC 0.74），减少建筑耗材。将层高由3.6米降到3.3米，为建筑节约了7.5米的高度。同时降低对周围环境影响，建筑构架形成的微气候也有利用当地的人和动植物。

全面的可持续性：由许多部分组成。

翅片式导向板
排布在建筑外表上的白色翅片导向板具有可持续性和节能减排的作用，将环境影响降到最低，可以遮阳，风控制，改变日光渗透率，将大量的热量阻隔，降低了对冷气的需求。

激活混凝土柱子
将其和地下储能结合起来，降低对外能源需求。

每个工作区独立温控
创造一个健康，节能的工作空间很重要。自然光线和热能的进入都是可控的。同时引入自然通风为办公区带入新鲜空气。

11楼
设备层，有高压通风设备，主导整个楼宇的通风，降低人工通风需求。

将来的可能性
可将数据中心和办事处的剩余能量用来加热，在未来为场地周边使用。

灵活性
建筑在以后也可是适应改建成为住宅，因此电梯，楼梯的位置也都精心考虑，电网结构以1.2米网格布局，而不是1.8米。

结论
多样化的被动式节能、有效的能源解决方案使得这个建筑是荷兰最可持续性的建筑之一。