使用玻璃纤维加固混凝土实现大型 3D 外墙组件:ČSOB Hradec Králové、C&A Zürich、Illuster Uster

Klara Janousova
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摘要

玻璃纤维增强混凝土(GRC)是一种用玻璃纤维增强的细粒混凝土材料,建筑师可以完全自由地设计后通风外墙。它可以根据项目的具体需要进行造型、着色、表面处理或其他定制,而不会受到很大的限制。GRC 材料的主要特性包括使用寿命长和可持续性。因此,外墙板的视觉效果非常吸引人,可以经受几十年恶劣天气条件的考验。高强度和耐久性的特点是通过将玻璃纤维分散在由波特兰水泥、沙子、水和进一步精炼的添加剂组成的基础混合物中实现的。复合结构中的细颗粒确保了低吸水性和高抗冻性。本文概述了 GRC 外墙设计的技术解决方案和流程。文章论述了锚固大型和三维形状外墙板的设计可能性。文章进一步介绍了上述所有特点和工艺细节,并将其应用于三个具体结构中。第一个介绍的项目是位于赫拉德茨-克拉洛韦的ČSOB 中央办公室,其典型的独特窗台与玻璃表面相结合。层叠式入口门户是其外立面的重要元素。下一个项目是位于瑞士苏黎世的 C&A 百货公司大楼的翻新工程。该建筑的外墙由带有独特框架的大面积结构板组成。文章最后介绍了对瑞士 Illuster 购物中心进行的创造性改造,其万花筒般的外墙由玻璃纤维加固混凝土板组成。
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Implementation of Large-Format 3D Façade Components Using Glass Fibre Reinforced Concrete:ČSOB Hradec Králové, C&A Zürich, Illuster Uster
Glassfibre reinforced concrete (GRC) is a close-grained concrete material reinforced with glass fibres that allows architects complete freedom in designing rear-ventilated façades. It can be shaped, coloured, surface-treated or otherwise tailored to the specific needs of their projects without significant limitations. The main properties of GRC material include its long life-time and sustainability. The results are visually appealing façade panels that can withstand adverse weather conditions for decades. The characteristic high strength and durability is achieved by dispersing glass fibres within the base mixture of Portland cement, sand, water and further refining additives. Fine-grained particles in the composite structure ensure low water absorbency and high frost resistance. This article is an overview of the technical solution and process of GRC façade design. It deals with the design possibilities for anchoring large-format and 3D shaped façade panels. The article further presents all of the above-mentioned characteristics and process details as they are used on three specific structures. The first presented project is the ČSOB Central Office in Hradec Králové, with its typical distinct ledges combined with glazed surfaces. The cascading entrance portal is a significant element of its façade. The next implementation chosen is the renovation of the C&A department store building in Zürich, Switzerland. This building’s façade is comprised of structured large-area panels with distinctive frames. The article concludes with the creatively implemented renovation of the Illuster shopping centre in Switzerland, with its kaleidoscopic façade made up of glassfibre reinforced concrete panels.
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