Integrated fluidic actuators for two-way concrete slabs

被引:0
作者
Bosch, Matthias J. [1 ]
Nitzlader, Markus [2 ]
Bachmann, Matthias [1 ]
Binz, Hansgeorg [1 ]
Blandini, Lucio [2 ]
Kreimeyer, Matthias [1 ]
机构
[1] Univ Stuttgart, Inst Engn Design & Ind Design IKTD, Pfaffenwaldring 9, D-70569 Stuttgart, Germany
[2] Univ Stuttgart, Inst Lightweight Struct & Conceptual Design ILEK, Pfaffenwaldring 7 14, D-70569 Stuttgart, Germany
来源
APPLICATIONS IN ENGINEERING SCIENCE | 2025年 / 21卷
关键词
Adaptive structures; Slabs; Integrated actuators; Multi-axial load transfer; Lightweight construction; Hydraulic;
D O I
10.1016/j.apples.2025.100208
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The architecture, engineering and construction (AEC) field influences the anthropogenic CO2 footprint. Concrete is one of the most widely used materials, with cement production alone being responsible for 6-10 % of worldwide anthropogenic CO2 emissions. To reduce structural mass and related emissions, it is necessary to use materials more efficiently. This can be achieved by means of adaptive structure design in which actuators are an essential component. These actuators must be specifically designed to address the particular requirements of adaptive structures, in order to maximize the reduction of global warming potential (GWP) in comparison to conventional structures. For floor slabs utilizing a specific actuation concept, one key requirement for the actuators is the ability to generate constant moment curves over defined areas. This approach enables local manipulation of the slab's load-bearing behavior while reducing the number of actuators required per slab, resulting in a more efficient and resource-saving design. This contribution presents a new approach for designing actuators that meet the requirements of adaptive two-way slabs. The steps involved in the design process are outlined here, from conceptual considerations to pre-investigations and the creation of the first prototype. The prototype is then investigated in experiments and a specific numerical setup is verified. The designed integrated fluidic actuators enable precise moment generation over defined distances within the slab, directly supporting the desired actuation concept. This enhances structural performance and offers the potential for reduced material usage and associated CO2 emissions. Overall, experimental and numerical investigation serve to validate the design approaches and concepts.
引用
收藏
页数:16
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