Strict Standards: Declaration of SubmissionKeywordEntryDAO::getByControlledVocabId() should be compatible with ControlledVocabEntryDAO::getByControlledVocabId($controlledVocabId, $rangeInfo = NULL, $filter = NULL) in /home/revistas/public_html/lib/pkp/classes/submission/SubmissionKeywordEntryDAO.inc.php on line 20
Warning: Cannot modify header information - headers already sent by (output started at /home/revistas/public_html/lib/pkp/classes/submission/SubmissionKeywordEntryDAO.inc.php:20) in /home/revistas/public_html/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 836
Warning: Cannot modify header information - headers already sent by (output started at /home/revistas/public_html/lib/pkp/classes/submission/SubmissionKeywordEntryDAO.inc.php:20) in /home/revistas/public_html/lib/pkp/classes/template/PKPTemplateManager.inc.php on line 837
Numerical and experimental analysis of time-dependent load transfer in reinforced concrete columns
| Revista IBRACON de Estruturas e Materiais
Numerical and experimental analysis of time-dependent load transfer in reinforced concrete columns
Luciana Tiemi Kataoka
Túlio Nogueira Bittencourt
Resumo
A study was conducted to assess the influence of the steel reinforcement ratio in concrete columns on their properties of creep and shrinkage. Experimental tests and three-dimensional finite element-based simulations of the experimental curves from plain concrete cylinders and plain concrete columns derived by curve fitting were performed using the ACI 209 model available in DIANA 9.3. Columns with longitudinal reinforcement ratios of 0%, 1.4% and 2.8%, loaded to 30% and 40% of their 7-day compressive strength, were investigated. The results indicated that numerical simulation does not predict experimental data for a long period. However, simulations fitted with experimental curves derived from plain concrete columns presented values close to those of experimental data for 91 days.
