Tolerance-free series production of high-performance concrete modules through transient-interactive coupling of design and production

提出了一种用于超高性能混凝土模块梁式混凝土结构设计和流水生产的交互式概念。其目的是通过耦合克服设计和生产的实际和时间分离，智能和交互地补偿几何，时间，工艺和材料的不精确性，并集成端到端的质量保证。通过这种方式，在流水线生产中实现了高效和低浪费的模块化构造。过程中的不精确性通过设计中的排列来补偿，反之亦然。一个“太长”的模块--有固定的规则，只是废料超过公差限制--可以通过模块结构中的一个“太短”的模块来补偿。因此，两者都可以使用。相互补偿通过准实时的交互排列经由生产过程随机且瞬时地发生。与此同时，这种新发现的灵活性被故意用于提高生产效率。可控的互动是crated积累鲁棒性整体结构，生产过程和时间（瞬态交互概念）。在第一个供资期间，重点关注了不同持续时间的热处理和在几何形状随机偏差的情况下选择性组装引起的收缩对结构尺寸的影响。这是研究不同类别的Y-模块和相关的具体尺寸的支柱，形成静态确定的蜂窝状结构。根据批次之间调整的热处理时间和真实尺寸，开发了一种控制系统，该系统限制收缩并产生几何优化结构。在第二个资助期内，将考虑多个模块的超静定系统。此外，现场模块的组装将被集成，然后赠款设计和生产的预测性交互。在外部，模块形成具有四个节点的壁，而在内部，它们根据载荷分解成拓扑最优的支柱。这产生了可变的、可扩展的模块化系统。互动基于现场模块放置和生产规范的耦合动力学。同时考虑单个或多个建筑工地。这种相互作用类似于逐模块的施工过程，并集成了取决于热处理的短期蠕变和由于开裂而导致的软化行为。该研究方法的目的是无批量多面制造采用强化学习的交互式生产和同步过程控制。性能将在整体虚拟和物理真实的演示器上进行验证。

An interactive concept for design and flow production of beam-like concrete structures made of UHPC modules is developed. The aim is to overcome the factual and temporal separation of design and production through coupling, that intelligently and interactively compensates for imprecisions in geometry, time, process and material and to integrate end-to-end quality assurance. In this way, efficient and low-waste modular construction in flow production is granted. Imprecisions in the process are compensated for by permutations in the design, and vice versa. A “too long” module - with fixed rules just scrap exceeding the tolerance limits - can be compensated for by a “too short” one in the module structure. And thus both can still be used. Mutual compensation happens stochastically and transiently via the production process through interactive permutations in quasi real-time. At the same time, this newfound flexibility is deliberately used to increase the efficiency of production. Controllable interaction is crated that accumulates robustness holistically over structure, production process and time (transient-interactive concept). The efficiency of the construction method is sustainably improved.In the first funding period, the focus was set on the impact of shrinkage on structural dimensions induced by heat treatments of different duration and selective assembly in case of stochastic deviations of geometry. This was investigated on Y-modules of different classes and associated specifically dimensioned struts which form statically determined honeycomb-like structures. Based on from batch to batch adjusted heat treatment durations and true dimensions a control system was developed that limits shrinkage and yields geometrically optimal structures.In the second funding period, multiply statically indeterminate systems of modules will be considered. Additionally, the assembly of modules on-site will be integrated and then grants predictive interaction of design and production. To the outside, the modules form walls with four nodes while internally they are dissolved into topologically optimal struts according to the loading. This yields a variable, scalable modular system. Interaction bases on coupled heuristics of module placement on-site and specifications for production. On purpose, single or multiple construction sites are considered simultaneously. The interaction proceeds in analogy to the module-by-module construction progress and integrates short-term creeping dependent on the heat treatment and softening behavior due to cracking. The research approach aims on lot-free multi-facetted manufacturing employing reinforcement learning for interactive production and simultaneous process control. The performance will be validated on holistic virtual and physically real demonstrators true to scale.