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
Behaviour of contact and noncontact lap compression splices
| Revista IBRACON de Estruturas e Materiais
Behaviour of contact and noncontact lap compression splices
Consuelo Bello Quintana
Giuseppe Barbosa Guimarães
Lidia Domingues Shehata
Resumo
An experimental study on the behaviour of lap splices in concrete columns under uniaxial compression is summarized herein. The objective was to investigate the influence of the distance between the spliced bars on the behaviour of the lap splice. The study included tests of two columns with spliced longitudinal bars under uniaxial compression: one column with bars in contact with each other in the splice and the other with bars spaced at twice the longitudinal bar diameter. In the tested columns, it was observed that the distance between the spliced bars has an insignificant influence on the mean bond stress in the splice. At ultimate load, in both columns, the normal stress at the tip of the bars was much higher than the uniaxial concrete compressive strength.