Abstract

The first bio-based composite movable bridge has been built in Ritsumasyl, The Netherlands (Fig. 1). This paper describes the material research conducted, and takes a further look at the design of the bridge and its monitoring system. The entire bridge has an overall length of 66 m. The first half is fixed and the second consists of an asymmetrical movable swing part with a free main span of 22 m and a counterweight section of 12 m. The bridge deck is made of 85% bio-based material. In collaboration with universities, research institutes and suppliers, tests and the design of components and materials are performed. The tests are carried out in accordance with guidelines and standards, whereby the outcome is analysed and used as input parameters for the design. Due to a tight schedule for the construction of the bridge, the tests have not been scientifically analysed in detail. The project team succeeded in building a bridge from Bcomp^® flax fibres, balsa and a bio-based Epoxy resin—1800 ECO + 1804 ECO made by Resoltech—which serves as an example for building the first green bridge—“green” in the sense that no synthetic chemicals and only natural fibres are used, a completely circular alternative material as one of the many possible alternative answers to tackling climate change. The bridge is equipped with an advanced monitoring system that has been built into the design. The monitoring system collects data on the behaviour of the bio-based deck for most circumstances, such as deformations, moisture content, loads and temperature. The bridge is equipped with optical fibres, with a total of 184 Fibre Bragg Grating (FBG) sensors, installed by Com&Sens.

摘要

在荷兰的Ritsumasyl建造了第一座生物基复合活动桥（图1）。）。本文描述了进行的材料研究，并进一步研究了桥梁及其监控系统的设计。整个桥的总长度为66 m。上半部分是固定的，第二半部分是一个不对称的可移动摆动部分，其自由主跨度为22 m，配重部分为12 m。桥面甲板由85％的生物基材料制成。与大学，研究机构和供应商合作，进行测试以及零件和材料的设计。根据指导原则和标准执行测试，从而分析结果并将其用作设计的输入参数。由于桥梁施工时间紧，尚未对试验进行详细的科学分析。项目团队成功地从Bcomp架起了一座桥梁^®亚麻纤维，轻木和生物基环氧树脂-Resoltech生产的1800 ECO + 1804 ECO，可作为建造第一个绿色桥梁的示例-“绿色”，即不使用合成化学品，而仅使用天然纤维，这是一种完全圆形的替代材料，可以作为应对气候变化的众多可能替代方案之一。该桥配备了已集成到设计中的高级监视系统。监视系统在大多数情况下收集有关生物基甲板行为的数据，例如变形，水分含量，载荷和温度。该桥配备了光纤，并由Com＆Sens安装了总共184个光纤布拉格光栅（FBG）传感器。