Jointing Principles in AMC—Part 1: Design and Preparation of Dry Joints

Applied Sciences

Harald Kloft¹  Abtin Baghdadi¹  Martin Empelmann²  Jan-Paul Lanwer²  Hendrik Weigel² 

[1] ITE (Institute of Structural Design), TU Braunschweig, 38106 Braunschweig, Germany;iBMB (Institute of Building Materials, Concrete Constructions and Fire Safety), Division of Concrete Construction, TU Braunschweig, 38106 Braunschweig, Germany;

关键词: 3D concrete printing;    dry joints;    subtractive post-processing;    joint catalogue;   

DOI  :  10.3390/app12094138

来源: DOAJ

【 摘 要 】

The study described in this contribution contains a fundamental strategy to select geometries for dry joint profiles in 3D-printed concrete constructions. A database, here called the ‘joint catalogue’, contains a variety of joint types adapted from timber, steel, and bionic connections. Weighting factors and different criteria evaluate and score the various joint profiles (e.g., manufacturability, duration of manufacturing, and mechanical behaviour). Therefore, an algorithm sums up the scores leading to the preselection of better suitable profiles. The preselected joint profiles were afterwards analysed by the finite element method, determining the load capacity of the joint in a unit specimen. According to the joint catalogue, a smooth, triangular, truncated cone and arc joint profile appeared to be the optimal combination for dry joints in additive manufacturing of construction (AMC).

【 授权许可】

Unknown