magistrsko delo
Abstract
V analizi konstrukcij »shear lag« upoštevamo z modeliranjem efektivne širine pasnice. V magistrski nalogi je analiziran »shear lag« efekt na naknadno prednapeti monolitni plošči z nosilci. Obravnavani so tudi nekateri aspekti modeliranja in izračuna prednapete plošče z nosilci. Analizirane so normalne napetosti v plošči v smeri x-osi in narejena je primerjava vrednosti efektivnih širin, dobljenih z računalniško analizo na MKE-modelu, ob variiranju različnih parametrov, ki lahko vplivajo na »shear lag« efekt, z efektivno širino, določeno s pomočjo izrazov standarda Evrokod 2. Ocenjevana je upravičenost upoštevanja »shear lag«-a z modeliranjem efektivne širine določene po Evrokod 2 v primeru prednapete plošče z nosilci majhne togosti. Izkaže se, da je upoštevanje »shear lag«-a z modeliranjem efektivne širine v tem primeru precej konzervativen pristop.
Keywords
prednapeti beton;prednapete betonske plošče;analiza konstrukcij;Shear lag efekt;strižno zaostajanje;modeliranje T-prereza;magistrske naloge;
Data
Language: |
Slovenian |
Year of publishing: |
2016 |
Typology: |
2.09 - Master's Thesis |
Organization: |
UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture |
Publisher: |
[J. Kruškić] |
UDC: |
624.072.1.012.46(043.2) |
COBISS: |
20510742
|
Views: |
1519 |
Downloads: |
180 |
Average score: |
0 (0 votes) |
Metadata: |
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Other data
Secondary language: |
English |
Secondary title: |
ANALYSIS OF SHEAR LAG EFFECT IN POST-TENSIONED CONCRETE SLAB WITH BEAMS |
Secondary abstract: |
In global analysis, shear lag effect is usually taken into account by using simplified method with effective flange width. Master's thesis deals with analysis of shear lag effect in post-tensioned slab with beams. Paper emphasizes some important aspects of post-tensioned slab with beams design. Calculation of normal stresses in plate (in x-directions) is performed for different models, and the influence of some parameters on the shear lag effect is analysed. Comparison is made between the effective width calculated according to Eurocode 2 standard and the effective width calculated on finite element models. Accuracy of the simplified approach to shear lag with effective width in the case of post-tensioned slab with beams is evaluated. According to results of the analysis, simplified method with effective width is quite conservative approach. |
Secondary keywords: |
structural analysis;post-tensioning;Shear lag effect;Eurocode 2;modeling; |
URN: |
URN:SI:UM: |
Type (COBISS): |
Master's thesis/paper |
Thesis comment: |
Univ. v Mariboru, Fak. za gradbeništvo, prometno inženirstvo in arhitekturo |
Pages: |
XIV, 101 f. |
ID: |
9237583 |