We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Toleranzfreie Montage modularer Betontragwerke: Optimierung der Modulanordnung mit Metaheuristiken.
- Authors
Stindt, Jan; Frey, Alex Maximilian; Forman, Patrick; Lanza, Gisela; Mark, Peter
- Abstract
Tolerance‐free assembly of modular concrete structures – optimization of module arrangement with metaheuristics Modular structures require dimensional stable components, since large process‐ or material‐related dimensional deviations in individual modules prevent assembly to the overall structure. The article presents a method for optimal placement based on metaheuristics. It helps to avoid cost‐intensive rework. The concept is applied to honeycomb structures in which the individual modules are swapped by permutation. With the so‐called Tabu Search and Simulated Annealing, two solving techniques are methodically used. For this purpose, the maximum nodal deviations of the assembled modules are determined with direct kinematics and compared with the admissible nominal hole clearance of bolted joints in order to assess the assembly capability of the modules. Tolerances from the shrinkage of the concrete on the one hand and those from the production steps of fabrication on the other hand are taken into account. Compared to a random arrangement of the modules, the reduction of maximum nodal deviations of 9 mm to the normalized nominal hole clearance of 3 mm succeeds with the help of the metaheuristics. Honeycomb structures with a width of approx. 7 m and a height of up to 45 m, which are particularly sensitive in terms of assembly, thus no longer require any reworking. Tabu Search proves to be the significantly more efficient solution algorithm, with six times less computation time and up to 24 % fewer deviations to be compensated. An example shows the practical application.
- Subjects
SIMULATED annealing; HONEYCOMB structures; MODULAR construction; EXPANSION &; contraction of concrete; METAHEURISTIC algorithms; METAMATERIALS; BOLTED joints
- Publication
Bautechnik, 2023, Vol 100, Issue 11, p674
- ISSN
0932-8351
- Publication type
Article
- DOI
10.1002/bate.202300052