韩国,首尔,对角线大厦/SOM

SOM建筑师事务所新设计的64层高对角线大厦位于韩国首尔市中心发展中的商业与混合用途商务区——龙山国际商务区,散发出一种现代化的结构表现主义。建筑师在设计中逐步解决了摩天大楼设计中的一些关键问题,呈现出一座精雕细琢的标志性建筑。从大厦必须符合结构和能源效率规定到降低施工成本,SOM努力将这些方面都整合到了整体外观的美感之中。稍候可看到项目的更多详细内容。

对角线大楼高达343米,能产生极大的视觉刺激效果。对角线形的巨大框架有点类似于诺曼•福斯特在纽约设计的赫斯特大厦,与传统框架结构建筑相比,能减少超过25%的所需钢框架总量。此外,这种非线性的垂直表面还缓解了风荷载和漩涡。主要结构支撑为建筑角落的四根墩柱,这样也打开了室内大堂与中庭。

在建筑内部和立面上采用的被动环境控制策略包括根据方位而设置的遮阳篷,水平、垂直和对角,各种方向架设,因而能减少夏天的热增量,在冬季则利于阳光直射。这栋摩天大楼的独特幕墙采用三层玻璃窗取代了大多数高楼中的标准双层玻璃。决定选用这种类型的玻璃窗的关键在于SOM的设计目标,即满足首尔绿色指南标准的要求。建筑在内部集成安装了冷梁系统,取代空气成为导热介质,热活性液体循环加热冷却系统就能通过冷梁来供暖与制冷。这种系统在效率与居住者舒适度方面均超越了传统的气动系统。


SOM’s new 64-storey Diagonal Tower to be located in the developing commercial and mixed-use Yongsan International Business District in the heart of Seoul, South Korea, exudes a modern take on structural expressionism.  The tower progressively addresses the critical issues associated with skyscraper design in an iconic and refined manner. From structural and energy efficiency to reduced construction costs that the tower must meet, SOM have strove to integrate these aspects holistically into the overall aesthetics. More details after the break.

Rising to 343 meters, the diagonal structure serves more than visual stimuli. Somewhat similar to Norman Foster’s Hearst Tower in New York, the diagonal megaframe reduces the amount of steel required by over 25% when compared to conventionally framed buildings.  In addition the non-linear vertical surface mitigates wind loading and vortices. Primary structural support is achieved via 4 piers at the corners of the building – which in turn opens up the interior lobby and atrium.

Passive environmental control strategies employed within and on the façade of the tower include sunshades that are positioned according to their orientation – horizontal, vertical, and diagonal – thus, mitigating heat gain in the summer and permitting direct sunlight during winter months. Atypical of skyscraper curtain walls is the triple pane glazing utilized, instead of the standard dual pane seen on the majority of towers. A critical decision in choosing this type of glazing stemmed from SOM’s goal to meet Seoul Green Guideline criteria. Internally, the building incorporates a chilled beam system whereby, thermally active hydronics transfer heat and cooling instead of air. The resultant system surpasses traditional air driven systems both in efficiency and human occupant comfort.