The reduction of energy and resources consumption in the building sector is of crucial importance. One way to approach this challenge is the development of high‐performance materials to increase efficiency. In the research project “MultiLC” (Multifunctional lightweight concrete elements with inhomogeneous properties) highly efficient Infra‐Lightweight Concrete (ILC) elements with varying properties over the cross‐section and further functions, for example, active thermal insulation or photocatalytic air purification, were developed. Besides investigations in concrete technology and building physics, the structural behavior of inhomogeneous ILC‐elements was examined. This paper summarizes the analytical and experimental methods used to investigate the structural behavior of wall and beam specimens and wall‐to‐slab connections. It was found that the stiffness method is a reasonable approach to calculate the maximum load‐bearing capacity of the inhomogeneous ILC elements. Recommendations could be formulated for ultimate design values. Also, the feasibility of a fixed connection between a normal concrete slab and a multi‐layered ILC‐wall was shown.

中文翻译：

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多功能非均质超轻混凝土构件的结构性能

减少建筑部门的能源和资源消耗至关重要。解决这一挑战的一种方法是开发高性能材料以提高效率。在研究项目“ MultiLC”（具有非均质特性的多功能轻质混凝土元件）中，高效的超轻型混凝土（ILC）元件在横截面上具有不同的特性，并具有主动隔热或光催化空气净化等其他功能。发达。除了研究混凝土技术和建筑物理外，还检查了非均质ILC元素的结构行为。本文总结了用于研究壁和梁标本以及壁板连接的结构行为的分析和实验方法。结果发现，刚度法是计算非均质ILC单元最大承载能力的合理方法。可以为最终设计值制定建议。此外，还显示了在普通混凝土板和多层ILC墙之间进行固定连接的可行性。