该项目由位于芬兰东部伊马特拉的一座变电站建筑和五座输电塔及终端组成。该项目延伸到沃克西河的两条支流和具有文化意义的伊马特兰科斯基激流。20世纪20年代，伊马特拉水电站建成后，这些急流被用于发电。这个标志性的工业基地也是芬兰主要电网的第一部分的起点。该地区的历史意义是我们的客户，即主要电网运营商Fingrid Oyj，追求特殊变电站设施的原因。
The project is composed of an electricity substation building and five transmission towers and terminals in Imatra in Eastern Finland. The project extends over two tributaries of the river Vuoksi and the culturally significant landscape of Imatrankoski rapids. The rapids were harnessed for power generation in the 1920s when the Imatra hydropower plant was constructed. This landmark industrial site was also the starting point of the first part of the Finnish main power grid. The historical significance of the area was why our client, the main grid operator Fingrid Oyj, pursued an exceptional substation facility.
老水电站建筑的红砖包覆外墙的突出特点是窗台和门的有节奏的排列。节奏也成为新变电站外墙和电力线结构的主要特征。1929年建成的老式空气绝缘开关设备即将结束其运行周期，必须用安装在新的变电站建筑内的气体绝缘开关设备来取代。
The outstanding feature of the old hydropower plant buildings’ red brick-clad facades is the rhythmic arrangement of window bays and doors. Rhythm also became the main feature of the new substation facades and powerline structures. The old air-insulated switchgear, completed in 1929, was coming to the end of its operational life cycle and had to be replaced with gas-insulated switchgear housed in a new substation building.
新的电力线结构取代了新变电站东部和西部的旧格子型塔楼。除了新电力线的位置，老水电站建筑的规模和坐标也是新变电站建筑的定位和布局的主要因素。变电站的低层设置在地下，与老电厂最近的部分高度一致。新的输电结构的设计也寻求与建筑和自然景观的平衡，除了一个塔楼外，其他都低于周围的树木。
New powerline structures replaced old lattice-type towers to the east and west of the new substation. Besides the location of the new powerlines, the scale and coordinates of the old hydropower plant buildings were primary factors in the positioning and layout of the new substation building. The lower floor of the substation is set underground to match the height of the nearest section of the old power plant. The design of the new transmission structures also seeks balance with the built and natural landscape, with all but one tower being lower than surrounding trees.
新的变电站建筑有一个混凝土框架和双层外墙。最外层的外墙由手工制作的长砖组成，呈 “之 “字形铺设，这个图案与新的电力线塔和终端的三角钢型材相同。双层外墙的内层由现浇和预制的混凝土墙组成，被设置在砖格后面的连续条形窗切割。
The new substation building has a concrete frame and double-skin facades. The outermost facade layer consists of hand-made long bricks laid in a zigzag profile, a motif which the building shares with the triangular steel profiles of the new powerline towers and terminals. The inner layer of the double facade consists of in-situ and prefabricated concrete walls cut by a continuous strip window set behind the brick lattice.
在建筑内部，主要的工艺设备室和大厅通过夹层窗条接受自然光，通过夹层窗条可以看到双层外墙的砖格。内部由暴露的预制混凝土部件的结构逻辑、细节设计和材料性来定义。该项目有三种类型的输电结构：一个带有垂直排列的横臂的高塔，两个带有水平配置的横臂的低塔，以及两个连接架空线和地下电缆的终端。
Inside the building, the main process equipment room and the lobby receive natural light via the clerestory window strip through which the brick lattice of the double facade can be seen. The interior is defined by the structural logic, detailing, and materiality of the exposed, prefabricated concrete parts. The project features three types of transmission structures: a tall tower with vertically arranged cross-arms, two low pylons with a horizontal configuration of cross-arms, and two terminals that connect overhead lines with underground cables.
这些结构由重复排列的三角钢型材的预制部分组成。伊马特拉变电站的各个部分分布在一个很大的区域内，主要的设计挑战是形成一个符合环境的连贯的整体。该设计打破了建筑环境的各个方面，并以一种新的抽象形式将其重新组合。衍生的设计语言给新项目一个统一的身份，并将其置于背景之中。
The structures consist of prefabricated sections of triangular steel profiles in repetitive arrangements. The various parts of Imatra Electricity Substation are spread over a large area, and the main design challenge was to form a coherent whole that fits in the setting. The design breaks apart aspects of the built context and reassembles them in a new abstracted form. The derived design language gives a unified identity to the new project and places it in the context.
Architects: Virkkunen & Co Architects
Area: 965 m²
Year: 2020
Photographs: Max Plunger, Tuomas Kivinen, Tomi Parkkonen
Manufacturers: Petersen Tegl
Project manager: Fingrid Oyj
Lead Designer:Tuomas Kivinen
Architect:Anna Blomqvist
Bim Modeling, Assistant Architect:Maria Karjalainen
Building Owner:Fingrid Oyj
City:Imatra
Country:Finland