{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/3658"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/3658","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Efeitos térmicos em estruturas maciças de concreto","abstract":"This work studies thermal effects on mass concrete structures, considering the incremental construction of the structure. Particular attention is given to problem of thermal stress which are find in gravity concrete dams, caused, mainly, by high increases of temperature and following gradual cooling, during the inicial phasis of hardening of concrete, dued the quantity of heat generated by the reactions of cement hidration. The temperature distribution is evaluated by transient linear analysis of heat transfer using the finite elements method on a bidimensional field. In order to calculated the thermal stress, concrete is supposed to be a linear elastic material, and conventional linear analysis with the finite element method is applied. The formulation of the aging material viscoelastic linear analysis is presented. This method reflects more sharply the concrete behavior and the problem is solved elasticaly through the method of equivalent temperature field. Finally, simple examples, are presented as well as a actual application in the thermal analysis of a gravity dams.","abstract_html":"This work studies thermal effects on mass concrete structures, considering the incremental construction of the structure. Particular attention is given to problem of thermal stress which are find in gravity concrete dams, caused, mainly, by high increases of temperature and following gradual cooling, during the inicial phasis of hardening of concrete, dued the quantity of heat generated by the reactions of cement hidration. The temperature distribution is evaluated by transient linear analysis of heat transfer using the finite elements method on a bidimensional field. In order to calculated the thermal stress, concrete is supposed to be a linear elastic material, and conventional linear analysis with the finite element method is applied. The formulation of the aging material viscoelastic linear analysis is presented. This method reflects more sharply the concrete behavior and the problem is solved elasticaly through the method of equivalent temperature field. Finally, simple examples, are presented as well as a actual application in the thermal analysis of a gravity dams.","abstract_has_math":false,"creators":["Pereira, Geraldo Luiz de Carvalho"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Fairbairn, Eduardo de Moraes Rego"],"committee_chairs":[],"committee_members":[],"year":1986,"date_issued":"1986-03","date_published":"1986-03","updated_at":"2026-07-24T01:16:07Z","subjects":["Engenharia Civil"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/3658","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Fairbairn, Eduardo de Moraes Rego"]},{"key":"dc:creator","label":"Author","values":["Pereira, Geraldo Luiz de Carvalho"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-02-27T14:23:27Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:00:55Z"]},{"key":"dc:date.issued","label":"Date","values":["1986-03"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engenharia Civil"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/3658"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This work studies thermal effects on mass concrete structures, considering the incremental construction of the structure. Particular attention is given to problem of thermal stress which are find in gravity concrete dams, caused, mainly, by high increases of temperature and following gradual cooling, during the inicial phasis of hardening of concrete, dued the quantity of heat generated by the reactions of cement hidration. The temperature distribution is evaluated by transient linear analysis of heat transfer using the finite elements method on a bidimensional field. In order to calculated the thermal stress, concrete is supposed to be a linear elastic material, and conventional linear analysis with the finite element method is applied. The formulation of the aging material viscoelastic linear analysis is presented. This method reflects more sharply the concrete behavior and the problem is solved elasticaly through the method of equivalent temperature field. Finally, simple examples, are presented as well as a actual application in the thermal analysis of a gravity dams."]},{"key":"dc:title","label":"Title","values":["Efeitos térmicos em estruturas maciças de concreto"]}]}],"canonical_facts":{"dc:contributor.advisor":["Fairbairn, Eduardo de Moraes Rego"],"dc:creator":["Pereira, Geraldo Luiz de Carvalho"],"dc:date.accessioned":["2018-02-27T14:23:27Z"],"dc:date.available":["2026-05-16T03:00:55Z"],"dc:date.issued":["1986-03"],"dc:description.abstract":["This work studies thermal effects on mass concrete structures, considering the incremental construction of the structure. Particular attention is given to problem of thermal stress which are find in gravity concrete dams, caused, mainly, by high increases of temperature and following gradual cooling, during the inicial phasis of hardening of concrete, dued the quantity of heat generated by the reactions of cement hidration. The temperature distribution is evaluated by transient linear analysis of heat transfer using the finite elements method on a bidimensional field. In order to calculated the thermal stress, concrete is supposed to be a linear elastic material, and conventional linear analysis with the finite element method is applied. The formulation of the aging material viscoelastic linear analysis is presented. This method reflects more sharply the concrete behavior and the problem is solved elasticaly through the method of equivalent temperature field. Finally, simple examples, are presented as well as a actual application in the thermal analysis of a gravity dams."],"dc:identifier.uri":["http://hdl.handle.net/11422/3658"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Engenharia Civil"],"dc:title":["Efeitos térmicos em estruturas maciças de concreto"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:07Z"}