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Endurance of the wooden bridge reinforced by the dowel plates

Lamri Dahoua

Lamri Dahoua

Department of Road Construction and Maintenance, National Transport UniversityKiev, Ukraine
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Dahoua, Lamri
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Fakhridine Boymatov

Fakhridine Boymatov

Faculty of Building Structures, Grounds and Foundations Constructions, Voronezh State Technical UniversityVoronezh, Russia
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Boymatov, Fakhridine
  
20. Okt. 2018
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Artikel-Kategorie: Research Article
Online veröffentlicht: 20. Okt. 2018
Seitenbereich: 202 - 207
Eingereicht: 01. Juni 2018
Akzeptiert: 03. Sept. 2018
DOI: https://doi.org/10.2478/sgem-2018-0023
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© 2018 Lamri Dahoua, Fakhridine Boymatov, published by Sciendo
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Figure 1

a. Wooden bridge in Kenozero National Park, Russia (Alexey Kudenko/RIA Novosti). b. Wooden bridge (160 m), designed with glulam beams in the Crie de Mistissini, Canada.
a. Wooden bridge in Kenozero National Park, Russia (Alexey Kudenko/RIA Novosti). b. Wooden bridge (160 m), designed with glulam beams in the Crie de Mistissini, Canada.

Figure 2

Dependence of the coefficient of endurance on the coefficient of the asymmetry of the loading cycle.
Dependence of the coefficient of endurance on the coefficient of the asymmetry of the loading cycle.

Figure 3

Dependence of the endurance coefficient corresponding to the number of loading cycles of N = 2 million depending on the coefficient of the asymmetry of the loading cycle.
Dependence of the endurance coefficient corresponding to the number of loading cycles of N = 2 million depending on the coefficient of the asymmetry of the loading cycle.

Values of fatigue characteristics of wood (Ry)_

Image of the stressful element stateSpecial symbols usedValue of the calculated resistance fatigue for first-grade wood, MPa
Bending along the fibresRу12.00
Compression along fibresRусо12.00

Comparison of the experimental and calculated values of the endurance factor_

No.Determination methodEndurance factor at
ρ = 0.20ρ = 0.25
1Experimental0.4590.470
2Calculated0.4510.475
3Error, %-1.77+1.05
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