id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-7041	Karpiuk, Vasyl; Somina, Yuliia; Karpiuk, Fedir; Karpiuk, Irina	Peculiar aspects of cracking in prestressed reinforced concrete T-beams	2021	11	.pdf	application/pdf	6129	286	59	The theoretical pre-condition of PC is based on the theory of experiment planning, the theory of mathematical 635 V. Karpiuk, Y. Somina, F. Karpiuk, I. Karpiuk Acta Polytechnica I – transfer of prestressing in reinforcement to concrete; II – formation of normal cracks in the zone of pure bending; III – growth of normal cracks and the formation of inclined cracks in shear spans; IV – development of normal and inclined cracks with an intersection of compressed beam flange and formation of new inclined cracks; V.A) – the beam destruction with the displacement of area near the support and with the reinforcement kink; V.B) – the beam destruction due to the prevailing action of the bending moment; V.C) – the beam destruction due to the crushing of the beam rib concrete Figure 3. By increasing the width ratio of the table overhangs to the thickness of the rib b / f /b from 2 to 4 and increasing the thickness ratio of the table overhangs to the working height h / f /h0 from 0.18 to 0.36, the opening width of normal cracks will increase by 14 %, and the opening width of inclined cracks will decrease by 21 and 23|,%.	cache/ap-7041.pdf	txt/ap-7041.txt