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从1980年起,瑞士杜本多夫的EMPA,苏黎世-斯维尔森巴的BBR公司,巴塞尔的Ciba AG公司,以及祖维尔的Stesalit AG公司,就一直研究开发应用于斜拉桥和悬索桥的碳纤维增强聚合物(CFRP)平行纤维线束。这种纤维线束具有卓越的力学性能及抗腐蚀性,很高的强度和相应的弹性模量,以及优良的抗疲劳特性。运用CFRP拉索以及将来推广使用所面临的关键问题是如何锚固。这里描述了一种已申请了专利---基于陶瓷和环氧树脂而制成的梯度锚固方法。1995～1996年,两根大尺寸的CFRP斜拉索首次运用于位于瑞士温特图尔镇斯托克桥上。该桥为一主跨124米,两车道的斜拉桥。
EMPA from Dübendorf, Switzerland, BBR from Zürich-Sverdloval, Ciba AG from Basel, and Stesalit AG from Zuvel have been working on cable-stayed and suspension bridges since 1980 Carbon Fiber Reinforced Polymer (CFRP) Parallel Fiber Harness. The fiber harnesses have excellent mechanical and corrosion resistance, high strength and corresponding elastic modulus, and excellent fatigue properties. How to anchor CFRP cables and how to solve them in the future. Described here is a patent application has been patented - based on ceramic and epoxy gradient made of the anchor method. From 1995 to 1996, two large-size CFRP stay cables were first used on Stoke Bridge in Winterthur, Switzerland. The bridge is a main span of 124 meters, two-lane cable-stayed bridge.