Abstract
V članku analiziramo vpliv zdrsa med slojema na mehansko obnašanje dvoslojnih kompozitnih prostorskih nosilcev. Podrobno nas zanima predvsem vpliv podajnosti stika slojev na razporeditev in velikost strižnih napetosti v prečnih prerezih dvoslojnih lesenih nosilcev. Strižne napetosti v slojih izračunamo na tri načine: (i) z razvitim matematičnim modelom in pripadajočimi analitičnimi rešitvami, (ii) z računsko metodo, kot jo predlaga veljavna zakonodaja s področja lesenih konstrukcij, standard Evrokod 5 [SIST, 2005], ter (iii) s predlagano modificirano enačbo omenjenega standarda za izračun strižnih napetosti. Primerjava razporeditve in velikosti strižnih napetosti v slojih je pokazala dobro ujemanje med rezultati matematičnega modela ter rezultati ustrezno modificirane enačbe standarda Evrokod 5 [SIST, 2005].
Keywords
3D-nosilci;elastičnost;kompoziti;zdrs;les;analitična rešitev;strižne napetosti;
Data
Language: |
Slovenian |
Year of publishing: |
2020 |
Typology: |
1.01 - Original Scientific Article |
Organization: |
UL FGG - Faculty of Civil and Geodetic Engineering |
UDC: |
624.011.1+624.042 |
COBISS: |
41762819
|
ISSN: |
0017-2774 |
Parent publication: |
Gradbeni vestnik
|
Views: |
340 |
Downloads: |
50 |
Average score: |
0 (0 votes) |
Metadata: |
|
Other data
Secondary language: |
English |
Secondary title: |
Shear stresses in elastic timber composite two-layer beams with interlayer slips |
Secondary abstract: |
his article focuses on three-dimensional two-layer composite beams with slips between the layers. The effect of contact stiffness on shear stresses in composite beam cross-section is studied in detail. Shear stresses are calculated by the application of: (i) a presented mathematical model with analytical solution, (ii) calculation method for layered timber beams with interlayer slips, as proposed by Eurocode 5 [SIST, 2005] and (iii) a suggested modified equation of the abovementioned standard for the calculation of shear stresses in timber composite beam cross-section. The comparison of the distribution and values of shear stresses in composite cross-section shows a good agreement of the results obtained by the presented mathematical model with the results calculated by the proposed modified Eurocode 5 [SIST, 2005] equation. |
Secondary keywords: |
3D beams;elasticity;composites;slip;timber;analytical solution;shear stress; |
Type (COBISS): |
Scientific work |
Pages: |
str. 286-295 |
Issue: |
ǂLetn. ǂ69 |
Chronology: |
nov. 2020 |
ID: |
12553457 |