Construction

Bam和Weber Beamix正在建造世界上最长的3D印刷行人桥

建筑公司BAMWeber Beamixhave begun building the world’s longest 3D printed concrete pedestrian bridge in the Netherlands.

简单命名为'The Bridge Project”,该计划由rijkswatestaat(the Dutch Directorate-General for Public Works and Water Management), with contributions from designer Michiel van der Kley and theEindhoven University of Technology。尽管它将在Nijmegen建造,但该桥目前正在印刷在Bam和Weber的3D打印设施所在的Eindhoven市。

完成后,混凝土结构的长度将达到2950万(近97英尺),据报道打破了最长的3D印刷桥的世界记录。根据美国有线电视新闻网,当前记录由Tsinghua大学在上海的86英尺混凝土桥上。

The final design for the bridge. Image via The Bridge Project.
The final design for the bridge. Image via The Bridge Project.

迎来新的设计浪潮

The employment of digital design in construction is expected to enable a new wave of novel building concepts, all while making the process more affordable and time-efficient. With most conventionally manufactured concrete structures requiring the use of formworks, van der Kley and Rijkswaterstaat sought a design that would be impossible without 3D printing in a bid to test the true potential of the technology. Conceived in the studio of van der Kley, the freeform bridge is intended to represent the future of 3D printing in the construction sector.

自然,使用3D打印也带来了一系列新的挑战,例如结构安全,准确的负载分析和材料适用性。为了合理化初始设计,该项目的结构工程师,Witteveen+Bos,委托Summum Engineeringto create a parametric model of the bridge. The model conformed the original design to a set of structural constraints, segmented it based on printing specifications developed by the Eindhoven University of Technology, and generated an optimized internal geometry for the bridge.

这使团队能够确定三个不同的输出。首先,结构的外表面,用作3D的输入Autodesk Revitmodels; secondly, the internal and external meshes, which were used for finite element analysis calculations; and thirdly, the printing paths for the concrete 3D printers.

Following an initial test bridge which was 3D printed by the Eindhoven University of Technology, BAM and Weber Beamix are now in the process of erecting the final bridge in Nijmegen. The partners chose Nijmegen for the landmark project because it was named the Green Capital of Europe in 2018, falling in line with the bridge’s eco-friendly philosophy.

BAM和Weber Beamix 3D在Eindhoven打印了桥。通过桥梁项目照片。
BAM和Weber Beamix 3D在Eindhoven打印了桥。通过桥梁项目照片。

欧洲领导指控

Nijmegen Bridge距离完成还不到一个月,Weber Beamix已经计划在荷兰又有3座桥梁。尽管建筑3D打印在世界所有四个角落都出现了,例如the U.S. with residential buildings和evenThailand with co-working spaces, the Europeans seem to be leading the charge in terms of sheer project numbers.

去年年底,总部位于德国的建筑公司小组3D打印了世界上第一个现场公寓in Wallenhausen, Germany. The three-floor residential structure was printed using Danish 3D printer OEMCOBOD’sconcrete 3D printing technology, and consists of five rentable apartment units.

在其他地方,在意大利北部的Massa Lombarda地区,3D打印机制造商WASP最近完成3D printing a unique eco-friendly organic house。Named ‘TECLA,’ the fully-fabricated dwelling has been built as a proof-of-concept and an initial blueprint for future sustainable housing models.

这座桥聚集在Nijmegen。通过桥梁项目照片。
这座桥聚集在Nijmegen。通过桥梁项目照片。

订阅3D打印行业newsletter有关增材制造中的最新消息。您也可以通过关注我们来保持联系Twitter和厘金g us onFacebook.

寻找添加剂制造业的职业?访问3D Printing Jobsfor a selection of roles in the industry.

Featured image shows the final design for the bridge. Image via The Bridge Project.