Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorBaltacı, Alihantr
dc.contributor.authorGündoğan, Safiyetr
dc.contributor.authorDemir, Uğurtr
dc.contributor.authorİlki, Alpertr
dc.descriptionThis study is supported by The Scientific and Technological Research Council of Turkey (TUBITAK) under the Grant No. 119M623.en_US
dc.description.abstractA considerable amount of existing reinforced concrete (RC) buildings in developing countries possess vital deficiencies such as incorporating poor quality of concrete and insufficient transverse reinforcement, and use of plain reinforcing bars without proper detailing, such as inadequate configurations of lap-splices at critical plastic hinging zones. While these can affect the strength and ductility of structural members adversely under seismic actions, research on such substandard structural members is scarce. As such, further information is valuable for the assessment of the seismic safety of such substandard columns constructed with inadequate lap-splice configurations of plain round bars. Therefore, this study aims to investigate the effects of different lap-splice configurations of plain bars on the seismic performance of substandard RC columns and contribute to the development of assessment codes for such existing substandard buildings. Towards this aim, three full-scale columns were constructed to represent typical characteristics of substandard RC columns. The columns were subjected to constant axial loading (with an axial load to capacity ratio of 0.3) and reversed cyclic displacement reversals simultaneously representing gravity loads and seismic actions, respectively. The test program included i) one reference column with continuous longitudinal bars (no lap-spliced connection), ii) one lap-spliced column with an overlap length of 20 times the longitudinal bar diameter without any hook and iii) one lap-spliced column with an overlap length of 20 times the longitudinal bar diameter with a 180-degree hook. Test results demonstrated that columns with lap-splices did not reach their flexural strength and experienced more remarkable strength degradation with respect to the column reinforced with continuous longitudinal bars. On the other hand, presence of a 180-degree hook at the ends of spliced bars reduced the negative influence of inadequate lap-splice length in terms of strength and ductility.en_US
dc.publisherfib. The International Federation for Structural Concreteen_US
dc.subjectReinforced concreteen_US
dc.subjectSeismic performanceen_US
dc.titleThe effect of lap-splice configuration on seismic performance of substandard RC columnsen_US
dc.typeConference Objecten_US
dc.institutionauthorDemir, Uğurtr
dc.departmentİzmir Institute of Technology. Architectureen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıtr
dc.relation.conference6th fib International Congress on Concrete Innovation for Sustainability, 2022en_US
dc.relation.publicationfib Symposiumen_US
item.openairetypeConference Object-
item.fulltextWith Fulltext- Department of Architecture-
Appears in Collections:Architecture / Mimarlık
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Files in This Item:
File Description SizeFormat 
TheEffectofLap.pdf980.11 kBAdobe PDFView/Open
Show simple item record

CORE Recommender

Page view(s)

checked on Apr 22, 2024


checked on Apr 22, 2024

Google ScholarTM


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.