慕尼黑高塔HVB大厦改造后重开放，德国 / HENN

HENN建筑事务所的新作HVB大厦在德国慕尼黑竣工。HVB大厦是一栋有着迷人结构和非凡号召力，并重新定义慕尼黑天际线的塔楼。

Its fascinating structure and appeal makes the HVB-Tower unique – a defining landmark which shapes Munich’s skyline.

这座建筑是HENN建筑事务所Walther和Bea Betz的呕心沥血之作。整个建筑被改建后焕然一新，内部结构得到彻底转型，变得十分充满活力。同时建筑外表皮被完美精确的再现1981年建成时的风采，但整修外表皮所采用的新材料新技术满足现代高效节能的外皮条件。过去的单层外表皮被改建后的双层外表皮所取代，新表皮的内层具有良好的声学功效，并可通过电动开关进行倾斜从而实现个别通风口的开或关。大厦的窗口通过中央控制面板实现开启或关闭。新鲜的空气从外观上不易察觉的穿孔板上进入建筑。在改建过程中，原有外观元素拆卸后进行了分类，分离，铝面板被重新清洗和投入使用，而构建则被回收。

Based on a design by HENN, the listed building, which was the brainchild of the architects Walther and Bea Betz, underwent energetic restoration and comprehensive restructuring of the interior rooms. The particular challenge lay in the exact preservation of the building’s external appearance with a façade corresponding to the demands of a modern, energy-efficient building envelope. Since the building came into use in 1981, the Tower has undergo- ne several changes before being declared a historic building in 2006. In contrast to the façade, the interior of the building was therefore no longer in its original state and could be completely overhauled during the course of renovation.

The formerly single-shell façade was replaced by a double-shell façade element developing towards the inside. The inner shell consists of an acoustically effective balustrade panel and an electromotive tilt opening vent with double glazing. This technology allows users to tilt and close the individual interior opening vents by pressing a button. Alternatively, the windows are opened and closed by means of a central control panel. The perforation of the façade elements for the fresh air supply was integrated in such a way that it is invisible from a distance. Refur- bishment of the systems engineering allowed for the implementation of an up-to-date climate-control concept. The dismantled façade elements were sorted and separated. While most of the non-reusable parts were recycled, the aluminium balustrade panels were cleaned and reused.

建筑的入口大厅被完全重新设计，中庭的边界由一个三层高的多纬度多面体定义，形式感十分振奋人心。透过三角晶体形状的天窗单元，光线在白色基调的中庭空间中恣意流淌，明亮而清新。不同楼层的公共空间借由中庭而得到视觉联系。整个114米高的大厦就是一个具有灵活开放空间的工作场所。

The building that the Tower rises from was given a newly designed entrance hall. A spectacular space made from unfolded polygonal surfaces of varying inclinations and angles extends over three floors. Through the triangular glass mono-pitch roof, daylight streams onto the matte white, solid surfaces of this crystalline spatial sculpture, creating changing lighting moods. The sightlines between the floors connect the food court and the cafeteria on the first floor with the event area on the second floor, and draw the eye upwards. The offices of the 114 metre high HVB-Tower have been designed as open spaces with flexible workplaces.

这座被妥善改建的建筑采用了环保材料并积极使用可再生能源，是名副其实的绿色建筑，也得到LEED白金认证。

Due to the extensive energetic structural reinforcement of the façade, the use of environmentally friendly mate- rials and the consistent use of renewable energies, the HVB-Tower was transformed into a „Green Building“ and received LEED Platinum certification.

Auftraggeber/client : HVZ GmbH & Co. Objekt KG Fläche/area: 140 000 m2 Tragwerksplanung/structural engineering: bwp Burggraf + Reiminger Teschnische Gebäudeausrüstung/technical building equipment: Climaplan Bauphysik/building physics: Müller-BBM Fassadenplanung/facade: R+R Fuchs Lichtplanung/light: Schmidt König Elektrotechnik/electrical engineering: Ingenieurbüro Knab Brandschutz/ re safety: a+p Architekten Vermessung/measurement: G+T Ziegler