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In this context, four flexural or simultaneous flexural and punching shear retrofitting systems are investigated in this study to strengthen a flexure\u2010deficient flat slab. Externally Bonded Reinforcement on Grooves (EBROG) and externally bonded reinforcement (EBR) methods are used for flexural strengthening in two cases: slabs without punching shear reinforcement and with post\u2010installed shear bolts as shear reinforcement. According to the results, flexural strengthening of the slab using the EBR and EBROG techniques increased its load capacity by 12% and 21%, respectively. Simultaneous flexural and shear strengthening of the slab using the EBROG technique was the most effective, leading to a 57% enhancement of the load capacity. For specimens whose failure was governed by punching, comparing the results with code predictions showed that Eurocode and ACI (and the respective guide documents fib bulletin 90 and ACI 440.2R) overestimated the capacity of these specimens. In cases where failure was governed by flexure, a simple application of the yield line theory predicted reasonably well the load capacity of the specimens.<\/jats:p>","DOI":"10.1002\/suco.202000236","type":"journal-article","created":{"date-parts":[[2020,9,24]],"date-time":"2020-09-24T14:33:11Z","timestamp":1600957991000},"page":"1147-1164","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Shear and flexural strengthening of deficient flat slabs with post\u2010installed bolts and<scp>CFRP<\/scp>composites bonded through<scp>EBR<\/scp>and<scp>EBROG<\/scp>"],"prefix":"10.1002","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6399-9163","authenticated-orcid":false,"given":"Ala","family":"Torabian","sequence":"first","affiliation":[{"name":"Department of Civil Engineering Isfahan University of Technology (IUT) Isfahan Iran"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6495-8715","authenticated-orcid":false,"given":"Brisid","family":"Isufi","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, NOVA School of Science and Technology Universidade NOVA de Lisboa Caparica Portugal"}]},{"given":"Davood","family":"Mostofinejad","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering Isfahan University of Technology (IUT) Isfahan Iran"}]},{"given":"Ant\u00f3nio","family":"Pinho Ramos","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, NOVA School of Science and Technology Universidade NOVA de Lisboa Caparica Portugal"},{"name":"CERIS Lisbon Portugal"}]}],"member":"311","published-online":{"date-parts":[[2020,9,7]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0958-9465(01)00068-3"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.istruc.2020.03.061"},{"key":"e_1_2_8_4_1","unstructured":"Wood J. 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