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Layered finite elements in the analysis of composite structures exposed to long-term effects
- Source :
- Građevinar, Volume 69, Issue 11.
- Publication Year :
- 2017
- Publisher :
- Croatian association of civil engineers, 2017.
-
Abstract
- U radu je predložen jedan numerički proračunski model za analizu stanja naprezanja i deformacija zbog puzanja i skupljanja betona i relaksacije čelika za prednapinjanje kod statički neodređenih spregnutih konstrukcija utemeljen na uslojenim konačnim elementima. Algoritam proračuna omogućava da se kroz karakteristične vremenske intervale uvedu sve bitne promjene u konstrukciji u skladu s tehnološkim postupcima pri izvođenju radova. Razvijen je i odgovarajući računalni program prilagođen inženjerskim proračunima u praksi.<br />This paper presents the use of a numerical model based on layered finite elements in the analysis of stress and strain due to creep and shrinkage of concrete and relaxation of prestressing steel in statically indeterminate composite structures. The calculation algorithm allows significant changes in the structure through characteristic time intervals, in accordance with technological procedures used during realisation of works. The corresponding computer program adapted to daily practical engineering design is also developed.
Details
- Language :
- English
- ISSN :
- 13339095 and 03502465
- Volume :
- 69
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Građevinar
- Accession number :
- edsair.od.......951..a8ef31869f04288c1fd5e88ce26faea7