title: ÐÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð°Ñ Ð°ÑÐ¼Ð°ÑÑÑÐ° Ð² ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½Ð¾Ð¼ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ðµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Composite reinforcements in transport construction
Creators: name: ÐÐ°Ð±ÐµÐ³Ð°Ð»Ð¾Ð², ÐÐ»ÐµÐºÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: ÐÑÐ¼Ð°ÑÑÑÐ° Ð¸Ð· ÑÑÐµÐºÐ»Ð¾Ð¿Ð»Ð°ÑÑÐ¸ÐºÐ¾Ð²
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ÐÐ´Ð³ÐµÐ·Ð¸Ñ
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description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð°Ñ Ð°ÑÐ¼Ð°ÑÑÑÐ° Ð² ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½Ð¾Ð¼ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²ÐµÂ». ÐÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ ÑÐµÐ»ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐ»Ð¾ÑÑ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ð±ÐµÑÐ¾Ð½Ð° Ð´Ð»Ñ ÑÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð¸ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ¾Ð² Ð°Ð´Ð³ÐµÐ·Ð¸Ð¸ Ð´Ð»Ñ Ð¾Ð±Ð¾Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð². ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ½Ð°Ð»Ð¸Ð· Ð¾Ð±Ð»Ð°ÑÑÐµÐ¹ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ð² ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½Ð¾Ð¼ ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ðµ; 2. Ð Ð°ÑÑÑÑ ÑÐ°Ð²Ð½Ð¾Ð¿ÑÐ¾ÑÐ½Ð¾Ð¹ Ð·Ð°Ð¼ÐµÐ½Ñ ÑÐ°Ð±Ð¾ÑÐµÐ¹ ÑÑÐ°Ð»ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ð½Ð° ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½ÑÑ Ð¿ÑÑÑÐ¼ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾Ð³Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ; 3. 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Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¾ÑÐ½Ð¾Ð²Ð½Ð¾Ð¹ Ð·Ð°Ð´Ð°ÑÐ¸ Ð±ÑÐ»Ð¾ Ð²ÑÐ±ÑÐ°Ð½Ð¾ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ð² Ð½ÐµÑÑÑÐ¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸ÑÑ Ð¸ÑÐºÑÑÑÑÐ²ÐµÐ½Ð½ÑÑ ÑÐ¾Ð¾ÑÑÐ¶ÐµÐ½Ð¸Ð¹. Ð Ð°Ð½ÐµÐµ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÑÐ¼Ð¸ ÑÐ¶Ðµ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð½Ð° Ð²ÑÑÑÐ² Ð¸Ð· Ð±ÐµÑÐ¾Ð½Ð½ÑÑ Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð²- ÐºÑÐ±Ð¾Ð² Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ [1, 2]. ÐÑÐ»Ð¾ Ð²ÑÑÐ²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ ÑÑÐµÐ¿Ð»ÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ñ Ð±ÐµÑÐ¾Ð½Ð¾Ð¼ Ð¾Ð±ÐµÑÐ¿ÐµÑÐ¸Ð²Ð°ÐµÑÑÑ Ð·Ð° ÑÑÐµÑ Ð°Ð´Ð³ÐµÐ·Ð¸Ð¸ ÑÐµÐ¼ÐµÐ½ÑÐ½Ð¾Ð³Ð¾ ÐºÐ°Ð¼Ð½Ñ Ñ ÑÐ¿Ð¾ÐºÑÐ¸Ð´Ð½ÑÐ¼ Ð¿Ð¾ÐºÑÑÑÐ¸ÐµÐ¼, Ð° Ð½Ðµ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ð¼ Ð·Ð°ÑÐµÐ¿Ð»ÐµÐ½Ð¸ÐµÐ¼ Ð²Ð¸ÑÐºÐ¾Ð² Ð² Ð±ÐµÑÐ¾Ð½Ð½Ð¾Ð¹ Ð¼Ð°ÑÑÐ¸ÑÐµ, Ð² Ð¾ÑÐ»Ð¸ÑÐ¸Ðµ Ð¾Ñ Ð¿ÑÐ¾ÑÐ¸Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ, Ð° Ð°Ð´Ð³ÐµÐ·Ð¸Ñ Ð±ÐµÑÐ¾Ð½Ð° Ðº ÑÐ¿Ð¾ÐºÑÐ¸Ð´Ð½Ð¾Ð¼Ñ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ Ð¿ÑÐµÐ²Ð¾ÑÑÐ¾Ð´Ð¸Ñ ÐºÐ¾Ð³ÐµÐ·Ð¸Ð¾Ð½Ð½ÑÑ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ Ð±ÐµÑÐ¾Ð½Ð°. Ð¢Ð°ÐºÐ¸Ð¼ Ð¾Ð±ÑÐ°Ð·Ð¾Ð¼, Ð³Ð¸Ð¿Ð¾ÑÐµÐ·Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¾ÑÑÐ¾ÑÐ»Ð° Ð² ÑÐ»ÐµÐ´ÑÑÑÐµÐ¼: Ð¼Ð¸Ð½Ð¸Ð¼Ð°Ð»ÑÐ½Ð¾ Ð´Ð¾Ð¿ÑÑÑÐ¸Ð¼Ð°Ñ ÑÐ¾Ð»ÑÐ¸Ð½Ð° Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ð±ÐµÑÐ¾Ð½Ð° Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐµÐ½Ð° Ð»Ð¸ÑÑ Ð´Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ¸Ð»Ð¾Ð¹ ÑÑÐµÐ¿Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ñ Ð±ÐµÑÐ¾Ð½Ð¾Ð¼, Ð° ÑÐ¾ÑÐ½ÐµÐµ ÐµÑ Ð°Ð´Ð³ÐµÐ·Ð¸ÐµÐ¹. Ð Ð¿ÑÐµÐ´ÑÐ´ÑÑÐ¸Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸ÑÑ [3-5] Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐ»ÑÑ Ð¼ÐµÑÐ¾Ð´ Ð²ÑÐ´ÐµÑÐ³Ð¸Ð²Ð°Ð½Ð¸Ñ ÑÑÐµÑÐ¶Ð½ÐµÐ¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ð¸Ð· ÑÐµÑÐµÐ´Ð¸Ð½Ñ Ð±ÐµÑÐ¾Ð½Ð½ÑÑ Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð², ÑÑÐ¾ Ð½Ðµ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐ»Ð¾ Ð²ÑÑÐ²Ð¸ÑÑ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½ÑÑ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ð±ÐµÑÐ¾Ð½Ð°. ÐÐ¾ÑÑÐ¾Ð¼Ñ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¸Ð½ÑÑÐ¾ ÑÐµÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¸Ð¼ÐµÐ½Ð¸ÑÑ Ð¼ÐµÑÐ¾Ð´ Ð¾ÑÑÑÐ²Ð° ÑÐ¾ ÑÐºÐ°Ð»ÑÐ²Ð°Ð½Ð¸ÐµÐ¼. Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð° Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð² Ð±ÑÐ» Ð²ÑÐ±ÑÐ°Ð½ Ð±ÐµÑÐ¾Ð½ ÐºÐ»Ð°ÑÑÐ° Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ Ð½Ð° ÑÐ¶Ð°ÑÐ¸Ðµ Ð25 Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ ÐÐÐ¡Ð¢ 26633-2015. Ð ÐºÐ°ÑÐµÑÑÐ²Ðµ ÑÐ°Ð±Ð¾ÑÐµÐ¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ð²ÑÐ±ÑÐ°Ð½Ð° ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð°Ñ ÑÑÐµÐºÐ»Ð¾Ð¿Ð»Ð°ÑÑÐ¸ÐºÐ¾Ð²Ð°Ñ Ð°ÑÐ¼Ð°ÑÑÑÐ° Ð¿ÐµÑÐ¸Ð¾Ð´Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾ÑÐ¸Ð»Ñ Ñ Ð´Ð¸Ð°Ð¼ÐµÑÑÐ¾Ð¼ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð³Ð¾ ÑÐµÑÐµÐ½Ð¸Ñ 12 Ð¼Ð¼., Ð¿Ð¾ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÑÐ¼ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÐ¸ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ°Ñ Ð¼ÐµÑÐ°Ð»Ð»Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÐµ Ð´Ð¸Ð°Ð¼ÐµÑÑÐ¾Ð¼ 16 Ð¼Ð¼. Ð¡ÑÐ°Ð½Ð´Ð°ÑÑÐ½Ð¾Ð¹ ÑÑÐµÐ¼Ð¾Ð¹ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¾ÑÑÑÐ²Ð° ÑÐ¾ ÑÐºÐ°Ð»ÑÐ²Ð°Ð½Ð¸ÐµÐ¼, Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾Ð¹ Ð½Ð° ÑÐ¸Ñ. 1, Ð¿ÑÐµÐ´ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¾ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð°Ð½ÐºÐµÑÐ½ÑÑ ÑÑÑÑÐ¾Ð¹ÑÑÐ² ÑÐ¸Ð¿Ð° ÐÐÐÐÐ¡-1 Ð² ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ð¸ Ñ ÐÐÐ¡Ð¢ 17624 ÐÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð, Ð Ð¸ ÐÐÐ¡Ð¢ 22690 ÐÑÐ¸Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð, Ð. ÐÑÑÐ¾Ð´Ñ Ð¸Ð· ÑÐ°ÑÑÑÐ¾ÑÐ½Ð¸Ñ Ð¼ÐµÐ¶Ð´Ñ Ð¾Ð¿Ð¾ÑÐ°Ð¼Ð¸ Ð¿ÑÐ¸Ð±Ð¾ÑÐ° ÐÐÐÐÐ¡-1.ÐÐ¡.100 Ð² ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð² Ð±ÑÐ»Ð¸ Ð²ÑÐ±ÑÐ°Ð½Ñ ÐºÑÐ±Ñ Ñ Ð½Ð¾Ð¼Ð¸Ð½Ð°Ð»ÑÐ½ÑÐ¼Ð¸ ÑÐ°Ð·Ð¼ÐµÑÐ°Ð¼Ð¸ (Ð´Ð»Ð¸Ð½Ð°Ð¼Ð¸ ÑÐµÐ±ÐµÑ) 250Ñ250Ñ250 Ð¼Ð¼. ÐÐµÑÐ¾Ð´ ÑÐ¾ÑÑÐ¾Ð¸Ñ Ð² Ð¿ÑÐ¾ÑÐ²ÐµÑÐ»Ð¸Ð²Ð°Ð½Ð¸Ð¸ Ð¾ÑÐ²ÐµÑÑÑÐ¸Ñ Ð² Ð¾Ð±ÑÐ°Ð·ÑÐµ Ð±ÐµÑÐ¾Ð½Ð° Ð¼ÐµÐ¶Ð´Ñ Ð¿Ð°ÑÐ°Ð»Ð»ÐµÐ»ÑÐ½Ð¾ ÑÐ»Ð¾Ð¶ÐµÐ½Ð½ÑÐ¼Ð¸ ÑÑÐµÑÐ¶Ð½ÑÐ¼Ð¸ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ñ Ð·Ð°Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ¾Ð»ÑÐ¸Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ, Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ¼ Ð·Ð°ÐºÑÐµÐ¿Ð»ÐµÐ½Ð¸Ð¸ Ð² ÑÑÐ¾Ð¼ Ð¾ÑÐ²ÐµÑÑÑÐ¸Ð¸ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½ÐºÐµÑÐ° Ð¸ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐµÐ³Ð¾ Ð¾ÑÑÑÐ²Ð° ÑÑÐ¾Ð³Ð¾ Ð°Ð½ÐºÐµÑÐ° Ð¸Ð· Ð±ÐµÑÐ¾Ð½Ð° ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½ÑÐ¼ Ð¿ÑÐ¸Ð±Ð¾ÑÐ¾Ð¼ Ñ Ð¾Ð³Ð¾Ð»ÐµÐ½Ð¸ÐµÐ¼ ÑÑÐµÑÐ¶Ð½ÐµÐ¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ Ð¸ Ð·Ð°Ð¼ÐµÑÐ¾Ð¼ ÑÑÐ¸Ð»Ð¸Ñ Ð²ÑÑÑÐ²Ð°. ÐÑÐ¸ Ð²Ð°ÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ñ Ð·Ð°Ð¼ÐµÑÐ°Ð¼Ð¸ ÑÑÐ¸Ð»Ð¸Ð¹ Ð²ÑÑÑÐ²Ð° Ð°Ð½ÐºÐµÑÐ° Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ð¸ ÑÑÐ¸Ñ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ð¹ Ñ ÑÑÐ°Ð»Ð¾Ð½Ð½ÑÐ¼Ð¸ Ð±ÑÐ»Ð° Ð²ÑÑÐ²Ð»ÐµÐ½Ð° Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð°Ñ ÑÑÐµÐ±ÑÐµÐ¼Ð°Ñ ÑÐ¾Ð»ÑÐ¸Ð½Ð° Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ. ÐÑÐ¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ¾Ð»ÑÐ¸Ð½Ðµ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ð±ÐµÑÐ¾Ð½Ð° (Ð¼ÐµÐ½ÐµÐµ 30 Ð¼Ð¼.) Ð¿ÑÐ¾Ð¸ÑÑÐ¾Ð´Ð¸Ð»Ð¾ Ð¾Ð³Ð¾Ð»ÐµÐ½Ð¸Ðµ ÑÑÐµÑÐ¶Ð½ÐµÐ¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ, ÑÑÐ¾ ÑÐ²Ð¸Ð´ÐµÑÐµÐ»ÑÑÑÐ²Ð¾Ð²Ð°Ð»Ð¾ Ð¾ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾Ð¹ ÑÐ¾Ð»ÑÐ¸Ð½Ðµ Ð·Ð°ÑÐ¸ÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ð±ÐµÑÐ¾Ð½Ð°. ÐÐ°Ð½Ð½ÑÐ¹ ÑÐ°ÐºÑ ÑÐºÐ°Ð·ÑÐ²Ð°ÐµÑ Ð½Ð° Ð¿ÑÐ¸Ð¾ÑÐ¸ÑÐµÑÐ½ÑÑ ÑÐ¾Ð»Ñ ÑÑÐµÐ¿Ð»ÐµÐ½Ð¸Ñ Ð±ÐµÑÐ¾Ð½Ð° Ñ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÑÑ ÑÐ¿Ð¾ÐºÑÐ¸Ð´Ð½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸Ð¼ÐµÑÐ°.
description: The subject of the graduate qualification work is: "Composite fittings in transport construction". The main purpose of the study was to determine the thickness of the concrete cover for steel and composite reinforcement and compare the adhesion coefficients for both parameters. Tasks that were solved in the course of the study: 1. Analysis of the areas of application of composite reinforcement in transport construction; 2. Calculation of equal-strength replacement of working steel reinforcement with composite one by means of experimental comparison; 3. Evaluation of economic efficiency and feasibility study for the use of composite reinforcement. The work was carried out on the basis of LLC Expert Center ProfStroyProekt, where a significant part of the factual material was collected. The calculations of the protective layer of composite reinforcement in concrete structures of artificial structures were carried out and the coefficients of adhesion of composite and steel reinforcement to concrete were compared, which ultimately affect the strength and durability of building structures. The main task was to determine the thickness of the protective layer of composite reinforcement in the supporting structures of artificial structures. Previously, manufacturers have already carried out tests for pull-out from concrete samples - cubes of polymer composite reinforcement [1, 2]. It was found that the adhesion of polymer composite reinforcement to concrete is ensured by the adhesion of cement stone with an epoxy coating, and not by mechanical engagement of the turns in the concrete matrix, in contrast to profiled metal reinforcement, and the adhesion of concrete to the epoxy coating exceeds the cohesive strength of concrete. Thus, the hypothesis of the study was as follows: only the sufficient adhesive force of polymer composite reinforcement with concrete limits the minimum allowable thickness of the protective layer of concrete, or rather, by its adhesion.In previous experimental studies [3-5], the method of pulling out composite reinforcement rods from the middle of concrete samples was used, which did not allow identifying the optimal thickness of the concrete protective layer. Therefore, it was decided to apply the method of separation with shearing.Concrete of compressive strength class B25 in accordance with GOST 26633-2015 was chosen as the sample material. Composite fiberglass reinforcement of a periodic profile with a cross-sectional diameter of 12 mm was chosen as the working reinforcement, which, in terms of strength, corresponds to metal reinforcement with a diameter of 16 mm.The standard shear-off test scheme shown in fig. 1, the use of anchor devices of the ONIKS-1 type is provided in accordance with GOST 17624 Annexes B, C and GOST 22690 Annexes F, G. Based on the distance between the supports of the ONIKS-1.OS.100 device, cubes with nominal dimensions ( rib lengths) 250x250x250 mm. The method consists in drilling a hole in a concrete sample between parallel-laid composite reinforcement bars with a given protective layer thickness, further fixing a special anchor in this hole, and then tearing this anchor out of the concrete with a special device, exposing the composite reinforcement bars and measuring the pull-out force. When varying the thickness of the protective layer with measurements of the pull-out forces of the anchor and comparing these values with the reference ones, the optimal required thickness of the protective layer was revealed. With an insufficient thickness of the concrete protective layer (less than 30 mm), the composite reinforcement rods were exposed, which indicated an insufficient thickness of the concrete protective layer. This fact indicates the priority role of the adhesion of concrete to the surface of the epoxy polymer.