{"id":{"repo_id":"rice","oai_identifier":"oai:repository.rice.edu:1911/104549"},"canonical_url":"https://search.dev.ndltd.org/etd/rice/oai:repository.rice.edu:1911/104549","repository":{"repo_id":"rice","name":"Rice University","base_url":"https://repository.rice.edu/server/oai/request"},"display":{"title":"A study of anchorage capacities of confined bent-bar reinforcement","abstract":"Some of the factors which influence the anchorage capacities of bent deformed reinforcing bars in joints of reinforced concrete structures were examined. Ten full scale specimens simulating an exterior beam-column joint in a structure were tested in order to evaluate the anchorage capacity of the beam bars subjected to varying degrees of confinement and bent to different geometric configurations. High strength deformed bars (ASTM A-615 Grade 6) with diameter of 7/8" were used in the tests. The hooks that were used, both 9° and 18, conformed to ACI specifications and recommendations. The following types of confinement were studied: a) longitudinal column bars; b) column ties through the joint ranging from none to #3 bars @ 2.5"; c) concrete cover Axial forces ranged from 27 kips to 55 kips. The experimental program consisted primarily of measuring the slip between the bent deformed reinforcing bar and concrete at three points and the strains on the reinforcing bars at three points also, at all the load stages until the failure of the specimen. The influence of the different variables considered on the anchorage capacity of the bent deformed reinforcing bars was discussed.","abstract_html":"Some of the factors which influence the anchorage capacities of bent deformed reinforcing bars in joints of reinforced concrete structures were examined. Ten full scale specimens simulating an exterior beam-column joint in a structure were tested in order to evaluate the anchorage capacity of the beam bars subjected to varying degrees of confinement and bent to different geometric configurations. High strength deformed bars (ASTM A-615 Grade 6) with diameter of 7/8" were used in the tests. The hooks that were used, both 9° and 18, conformed to ACI specifications and recommendations. The following types of confinement were studied: a) longitudinal column bars; b) column ties through the joint ranging from none to #3 bars @ 2.5"; c) concrete cover Axial forces ranged from 27 kips to 55 kips. The experimental program consisted primarily of measuring the slip between the bent deformed reinforcing bar and concrete at three points and the strains on the reinforcing bars at three points also, at all the load stages until the failure of the specimen. The influence of the different variables considered on the anchorage capacity of the bent deformed reinforcing bars was discussed.","abstract_has_math":false,"creators":["Marques, Jose Luis Guerra"],"institution":"Rice University","degree_name":"Master of Science","degree_level":"Masters","degree_discipline":"Engineering","degree_department":null,"school":null,"contributors":[],"advisors":["Jirsa, James O."],"committee_chairs":[],"committee_members":[],"year":1972,"date_issued":"1972","date_published":"1972","updated_at":"2026-07-24T04:10:17Z","subjects":[],"languages":["eng"],"rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/1911/104549","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Jirsa, James O."]},{"key":"dc:creator","label":"Author","values":["Marques, Jose Luis Guerra"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-12-18T21:25:18Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2018-12-18T21:25:18Z"]},{"key":"dc:date.issued","label":"Date","values":["1972"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Rice University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/1911/104549"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Some of the factors which influence the anchorage capacities of bent deformed reinforcing bars in joints of reinforced concrete structures were examined. Ten full scale specimens simulating an exterior beam-column joint in a structure were tested in order to evaluate the anchorage capacity of the beam bars subjected to varying degrees of confinement and bent to different geometric configurations. High strength deformed bars (ASTM A-615 Grade 6) with diameter of 7/8" were used in the tests. The hooks that were used, both 9° and 18, conformed to ACI specifications and recommendations. The following types of confinement were studied: a) longitudinal column bars; b) column ties through the joint ranging from none to #3 bars @ 2.5"; c) concrete cover Axial forces ranged from 27 kips to 55 kips. The experimental program consisted primarily of measuring the slip between the bent deformed reinforcing bar and concrete at three points and the strains on the reinforcing bars at three points also, at all the load stages until the failure of the specimen. The influence of the different variables considered on the anchorage capacity of the bent deformed reinforcing bars was discussed."]},{"key":"dc:title","label":"Title","values":["A study of anchorage capacities of confined bent-bar reinforcement"]}]}],"canonical_facts":{"dc:contributor.advisor":["Jirsa, James O."],"dc:creator":["Marques, Jose Luis Guerra"],"dc:date.accessioned":["2018-12-18T21:25:18Z"],"dc:date.available":["2018-12-18T21:25:18Z"],"dc:date.issued":["1972"],"dc:description.abstract":["Some of the factors which influence the anchorage capacities of bent deformed reinforcing bars in joints of reinforced concrete structures were examined. Ten full scale specimens simulating an exterior beam-column joint in a structure were tested in order to evaluate the anchorage capacity of the beam bars subjected to varying degrees of confinement and bent to different geometric configurations. High strength deformed bars (ASTM A-615 Grade 6) with diameter of 7/8" were used in the tests. The hooks that were used, both 9° and 18, conformed to ACI specifications and recommendations. The following types of confinement were studied: a) longitudinal column bars; b) column ties through the joint ranging from none to #3 bars @ 2.5"; c) concrete cover Axial forces ranged from 27 kips to 55 kips. The experimental program consisted primarily of measuring the slip between the bent deformed reinforcing bar and concrete at three points and the strains on the reinforcing bars at three points also, at all the load stages until the failure of the specimen. The influence of the different variables considered on the anchorage capacity of the bent deformed reinforcing bars was discussed."],"dc:identifier.uri":["https://hdl.handle.net/1911/104549"],"dc:language.iso":["eng"],"dc:rights":["Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder."],"dc:title":["A study of anchorage capacities of confined bent-bar reinforcement"],"dc:type":["Thesis"],"thesis:degree_discipline":["Engineering"],"thesis:degree_level":["Masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Rice University"]},"updated_at":"2026-07-24T04:10:17Z"}