Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction
Fibre reinforced concrete (FRC) is increasingly being used in elements with high structural responsibility, the constructed FRC column-supported flat slabs (CSFSs, hereinafter) with partial or even total substitution of reinforcing steel bars being a supporting evidence for that statement. These pio...
| Authors: | ; ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2022 |
| Country: | España |
| Institution: | Universitat Politècnica de Catalunya (UPC) |
| Repository: | UPCommons. Portal del coneixement obert de la UPC |
| Language: | English |
| OAI Identifier: | oai:upcommons.upc.edu:2117/365908 |
| Online Access: | https://hdl.handle.net/2117/365908 https://dx.doi.org/10.1016/j.jobe.2022.104205 |
| Access Level: | Open access |
| Keyword: | Fiber-reinforced concrete Elevated slab Two-way slab Fibre reinforced concrete Hybrid reinforced concrete Construction process Cost analysis Comparative study Formigó armat Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
| _version_ | 1878732683840847872 |
|---|---|
| author | Aidarov, Stanislav|||0000-0001-5576-7215 |
| author2 | Nadaždi, Ana Pugach, Evgeniy Tošić, Nikola|||0000-0003-0242-8804 Fuente Antequera, Albert de la|||0000-0002-8016-1677 |
| author2_role | author author author author |
| author_browse | Aidarov, Stanislav|||0000-0001-5576-7215 Fuente Antequera, Albert de la|||0000-0002-8016-1677 Nadaždi, Ana Pugach, Evgeniy Tošić, Nikola|||0000-0003-0242-8804 |
| author_facet | Aidarov, Stanislav|||0000-0001-5576-7215 Nadaždi, Ana Pugach, Evgeniy Tošić, Nikola|||0000-0003-0242-8804 Fuente Antequera, Albert de la|||0000-0002-8016-1677 |
| author_role | author |
| collection | UPCommons. Portal del coneixement obert de la UPC |
| description | Fibre reinforced concrete (FRC) is increasingly being used in elements with high structural responsibility, the constructed FRC column-supported flat slabs (CSFSs, hereinafter) with partial or even total substitution of reinforcing steel bars being a supporting evidence for that statement. These pioneer experiences provide encouraging results with respect to resource optimization and construction time reduction without jeopardising the structural reliability. Despite such promising achievements, the use of FRC in CSFSs is still limited in the building sector. To provide an additional impulse for the use of FRC, a comprehensive comparison between FRC and traditional reinforced concrete (RC) technologies for CSFSs in terms of execution procedure and overall costs is needed. With this in mind, an industrial-oriented study was carried out with the main objective of elaborating a simplified method for the preliminary comparison of RC and FRC solutions. This method permits to assess the major amount of the required reinforcement (flexural reinforcement) followed by an evaluation of the time saving effect due to the partial or total substitution of reinforcing steel bars by fibres. For this purpose and for the sake of generalization, several databases were examined and 33 interviews with experts on in situ construction were conducted so that a wide range of productivity rates and other particularities could be identified. Based on the proposed method, a case study was analysed in order to indicate the potential direct costs (materials + labour) for a number of RC and FRC solutions using data from the examined databases and conducted interviews. The results reflect an increment of direct costs for both fibre and hybrid (fibre + reinforcing steel bars, HFRC) solutions; however, these increment can be compensated by the reduction of the construction period and, as a consequence, time-dependent costs (i.e., preliminaries, equipment costs, overheads, and finance costs). The outcomes of this research are meant to provide support to designers and construction planners with regard to the suitability of using FRC for CSFSs. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_47baaeeed1f024a2fd7d2ab59dec2e73 |
| institution | Universitat Politècnica de Catalunya (UPC) |
| instname_str | Universitat Politècnica de Catalunya (UPC) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:upcommons.upc.edu:2117/365908 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | UPCommons. Portal del coneixement obert de la UPC |
| spelling | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction Aidarov, Stanislav|||0000-0001-5576-7215 Nadaždi, Ana Pugach, Evgeniy Tošić, Nikola|||0000-0003-0242-8804 Fuente Antequera, Albert de la|||0000-0002-8016-1677 Fiber-reinforced concrete Elevated slab Two-way slab Fibre reinforced concrete Hybrid reinforced concrete Construction process Cost analysis Comparative study Formigó armat Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó Fibre reinforced concrete (FRC) is increasingly being used in elements with high structural responsibility, the constructed FRC column-supported flat slabs (CSFSs, hereinafter) with partial or even total substitution of reinforcing steel bars being a supporting evidence for that statement. These pioneer experiences provide encouraging results with respect to resource optimization and construction time reduction without jeopardising the structural reliability. Despite such promising achievements, the use of FRC in CSFSs is still limited in the building sector. To provide an additional impulse for the use of FRC, a comprehensive comparison between FRC and traditional reinforced concrete (RC) technologies for CSFSs in terms of execution procedure and overall costs is needed. With this in mind, an industrial-oriented study was carried out with the main objective of elaborating a simplified method for the preliminary comparison of RC and FRC solutions. This method permits to assess the major amount of the required reinforcement (flexural reinforcement) followed by an evaluation of the time saving effect due to the partial or total substitution of reinforcing steel bars by fibres. For this purpose and for the sake of generalization, several databases were examined and 33 interviews with experts on in situ construction were conducted so that a wide range of productivity rates and other particularities could be identified. Based on the proposed method, a case study was analysed in order to indicate the potential direct costs (materials + labour) for a number of RC and FRC solutions using data from the examined databases and conducted interviews. The results reflect an increment of direct costs for both fibre and hybrid (fibre + reinforcing steel bars, HFRC) solutions; however, these increment can be compensated by the reduction of the construction period and, as a consequence, time-dependent costs (i.e., preliminaries, equipment costs, overheads, and finance costs). The outcomes of this research are meant to provide support to designers and construction planners with regard to the suitability of using FRC for CSFSs. This study was financially supported by the Spanish Ministry of Science and Innovation under the scope of project CREEF (PID2019-108978RB-C32). The first author, personally, thanks the Department of Enterprise and Education of Catalan Government for providing support through the PhD Industrial Fellowship (2018 DI 77) in collaboration with Smart Engineering Ltd. (UPC’s Spin-Off). Peer Reviewed Elsevier https://hdl.handle.net/2117/365908 https://dx.doi.org/10.1016/j.jobe.2022.104205 |
| spellingShingle | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction Aidarov, Stanislav|||0000-0001-5576-7215 Fiber-reinforced concrete Elevated slab Two-way slab Fibre reinforced concrete Hybrid reinforced concrete Construction process Cost analysis Comparative study Formigó armat Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
| title | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction |
| title_full | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction |
| title_fullStr | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction |
| title_full_unstemmed | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction |
| title_short | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction |
| title_sort | Cost-oriented analysis of fibre reinforced concrete column-supported flat slabs construction |
| topic | Fiber-reinforced concrete Elevated slab Two-way slab Fibre reinforced concrete Hybrid reinforced concrete Construction process Cost analysis Comparative study Formigó armat Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
| topic_facet | Fiber-reinforced concrete Elevated slab Two-way slab Fibre reinforced concrete Hybrid reinforced concrete Construction process Cost analysis Comparative study Formigó armat Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
| url | https://hdl.handle.net/2117/365908 https://dx.doi.org/10.1016/j.jobe.2022.104205 |