Translation. Region: Russian Federal
Source: Peter the Great St. Petersburg Polytechnic University –
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A group of scientists from the Institute of Civil Engineering of SPbPU, led by Associate Professor of the Higher School of Hydraulic and Power Engineering Oleg Stolyarov, continues to develop lightweight thin-walled building structures made of textile-reinforced concrete with prestressing. In 2024, the project received grant support from the Russian Science Foundation, which made it possible to expand the possibilities for conducting experiments and analyzing data.
The research group includes associate professors Pavel Mostovykh and Tatyana Koryakovtseva, as well as graduate student and assistant Anna Dontsova.
Textile-reinforced concrete is a combination of textile reinforcing meshes and fine-grained concrete. The advantages of these elements are the absence of corrosion, lower weight and the ability to create complex shapes. Over the past two decades, this material has found its niche in construction and is used for enclosing structures, coatings, urban infrastructure elements and small architectural forms.
The aim of the project is to increase the potential of thin-walled structures with fiber reinforcement due to prestressing the reinforcement. Prestressed concrete helps reduce the negative effect of poor tensile properties of concrete, increase the rigidity of the structure, reduce its deformations, increase resistance to crack formation and limit their opening. Structures with prestressed steel reinforcement have significant advantages over non-stressed analogues – smaller deflections and increased resistance to crack formation. A similar principle can be successfully implemented in fiber composites, which opens up new prospects for the use of prestressed textile reinforcement in construction.
The results of the studies showed that prestressing significantly affects the mechanical properties of concrete composites.
Thin-walled structures made of textile-reinforced concrete are a revolution in the creation of sustainable, lightweight and bold architectural solutions, says project manager Oleg Stolyarov.
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