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Numerična analiza mehanskega odziva naknadno prednapetega betonskega nosilca z nepovezanimi ukrivljenimi kabli = Numerical analysis of a posttensioned concrete beam with unbonded curved cablesKočman, Peter ; Bratina, Sebastjan ; Kolšek Češarek, Jerneja, 1984-V članku predstavimo matematični model in ustrezen numerični postopek za analizo mehanskega odziva naknadno prednapetega betonskega nosilca z nepovezanimi ukrivljenimi kabli pri delovanju ... kratkotrajne statične obtežbe. Betonski del nosilca, ki je v splošnem armiran z mehko armaturo, modeliramo z Reissnerjevim modelom ravninskega nosilca, prednapete kable, ki potekajo znotraj betonskega nosilca, pa z modelom vrvi. Pri tem upoštevamo, da se kabel in betonski nosilec na medsebojnem stiku lahko zamakneta, ne moreta pa se razmakniti. Pojava lokalizacije deformacij in mehčanja betona v tlaku, ki običajno nastopita pri visokih nivojih obremenitev, modeliramo s t. i. »crack-band« modelom, s katerim omenjena pojava omejimo na končno dolžino nosilca. Primernost in natančnost razvitega modela prikažemo s primerjavo numeričnih in eksperimentalnih rezultatov mehanskega odziva prostoležečega in kontinuirnega nosilca, za katera so v literaturi na voljo dobro dokumentirani eksperimentalni rezultati. Ugotovimo zelo dobro ujemanje rezultatov.Source: Gradbeni vestnik : glasilo Zveze društev gradbenih inženirjev in tehnikov Slovenije. - ISSN 0017-2774 (Letn. 73, mar. 2024, str. 54-65)Type of material - article, component part ; adult, seriousPublish date - 2024Language - slovenianCOBISS.SI-ID - 190546691
Author
Kočman, Peter |
Bratina, Sebastjan |
Kolšek Češarek, Jerneja, 1984-
Topics
prednapeti beton |
ukrivljeni kabli |
ponaknadno napenjanje |
numerični model |
prostoležeči nosilec |
kontinuirni nosilec |
prestressed concrete |
curved cables |
post-tensioning |
numerical model |
simply supported beam |
continuous beam
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source: Gradbeni vestnik : glasilo Zveze društev gradbenih inženirjev in tehnikov Slovenije. - ISSN 0017-2774 (Letn. 73, mar. 2024, str. 54-65)
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kočman, Peter | 55896 |
Bratina, Sebastjan | 20158 |
Kolšek Češarek, Jerneja, 1984- | 33293 |
Source: Personal bibliographies
and: SICRIS
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