Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie model
In the paper, an innovative shear wall, which is referred to as steel fiber reinforced concrete (SFRC) shear wall with concrete filled steel tube (CFST) columns, is introduced, based on the high bearing capacity and large stiffness of concrete filled steel tube column (CFSTC) and good cracking resis...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2024-01-01
|
| Series: | Frontiers in Materials |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2023.1298812/full |
| _version_ | 1797361290245570560 |
|---|---|
| author | Peibo You Li Li Yapeng Qin Yi Wang Qingjie Yang Jie Zhang |
| author_facet | Peibo You Li Li Yapeng Qin Yi Wang Qingjie Yang Jie Zhang |
| author_sort | Peibo You |
| collection | DOAJ |
| description | In the paper, an innovative shear wall, which is referred to as steel fiber reinforced concrete (SFRC) shear wall with concrete filled steel tube (CFST) columns, is introduced, based on the high bearing capacity and large stiffness of concrete filled steel tube column (CFSTC) and good cracking resistance and strong toughness of steel fiber reinforced concrete. The loading mechanism of steel fiber reinforced concrete shear wall (SFRCSW) with concrete filled steel tube columns is analyzed, and shear bearing capacity calculation method. A simplified model of the steel fiber reinforced concrete shear wall web softening tension bar is proposed, concrete and distributed web reinforcement to the shear bearing capacity of steel fiber reinforced concrete shear wall web is identified. Furthermore, a new algorithm to obtain the shear bearing capacity of steel fiber reinforced concrete shear wall with concrete filled steel tube columns is established, and then it is validated by using the test results of steel fiber reinforced concrete shear wall with concrete filled steel tube columns under low-cycle repeated loading. The results showed that all tested shear wall specimens exhibited obvious shear failure characteristics and a typical diagonal cracking pattern after test. The steel fibers obviously improved the crack forms of the steel fiber reinforced concrete shear wall web and the seismic behavior of steel fiber reinforced concrete shear wall with concrete filled steel tube columns. In addition, the proposed calculation method is scientific and accurate to analyze and predict the shear bearing capacity of low-rise steel fiber reinforced concrete shear wall with concrete filled steel tube columns. |
| first_indexed | 2024-03-08T15:51:43Z |
| format | Article |
| id | doaj.art-735813ccefbf412d9eab486899b45b2b |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-03-08T15:51:43Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-735813ccefbf412d9eab486899b45b2b2024-01-09T04:33:34ZengFrontiers Media S.A.Frontiers in Materials2296-80162024-01-011010.3389/fmats.2023.12988121298812Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie modelPeibo You0Li Li1Yapeng Qin2Yi Wang3Qingjie Yang4Jie Zhang5Department of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan, Henan, ChinaCollege of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, ChinaCollege of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, ChinaDepartment of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan, Henan, ChinaDepartment of Civil and Transportation Engineering, Henan University of Urban Construction, Pingdingshan, Henan, ChinaDepartment of Architectural Engineering, Jiyuan Vocational and Technical College, Jiyuan, Henan, ChinaIn the paper, an innovative shear wall, which is referred to as steel fiber reinforced concrete (SFRC) shear wall with concrete filled steel tube (CFST) columns, is introduced, based on the high bearing capacity and large stiffness of concrete filled steel tube column (CFSTC) and good cracking resistance and strong toughness of steel fiber reinforced concrete. The loading mechanism of steel fiber reinforced concrete shear wall (SFRCSW) with concrete filled steel tube columns is analyzed, and shear bearing capacity calculation method. A simplified model of the steel fiber reinforced concrete shear wall web softening tension bar is proposed, concrete and distributed web reinforcement to the shear bearing capacity of steel fiber reinforced concrete shear wall web is identified. Furthermore, a new algorithm to obtain the shear bearing capacity of steel fiber reinforced concrete shear wall with concrete filled steel tube columns is established, and then it is validated by using the test results of steel fiber reinforced concrete shear wall with concrete filled steel tube columns under low-cycle repeated loading. The results showed that all tested shear wall specimens exhibited obvious shear failure characteristics and a typical diagonal cracking pattern after test. The steel fibers obviously improved the crack forms of the steel fiber reinforced concrete shear wall web and the seismic behavior of steel fiber reinforced concrete shear wall with concrete filled steel tube columns. In addition, the proposed calculation method is scientific and accurate to analyze and predict the shear bearing capacity of low-rise steel fiber reinforced concrete shear wall with concrete filled steel tube columns.https://www.frontiersin.org/articles/10.3389/fmats.2023.1298812/fullsteel fiber reinforced high strength concreteshear wallconcrete filled steel tube columnsshear bearing capacitysimplified softened strut and tie model |
| spellingShingle | Peibo You Li Li Yapeng Qin Yi Wang Qingjie Yang Jie Zhang Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie model Frontiers in Materials steel fiber reinforced high strength concrete shear wall concrete filled steel tube columns shear bearing capacity simplified softened strut and tie model |
| title | Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie model |
| title_full | Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie model |
| title_fullStr | Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie model |
| title_full_unstemmed | Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie model |
| title_short | Shear bearing capacity calculation of low-rise SFRC shear wall with CFST columns based on simplified softened strut and tie model |
| title_sort | shear bearing capacity calculation of low rise sfrc shear wall with cfst columns based on simplified softened strut and tie model |
| topic | steel fiber reinforced high strength concrete shear wall concrete filled steel tube columns shear bearing capacity simplified softened strut and tie model |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2023.1298812/full |
| work_keys_str_mv | AT peiboyou shearbearingcapacitycalculationoflowrisesfrcshearwallwithcfstcolumnsbasedonsimplifiedsoftenedstrutandtiemodel AT lili shearbearingcapacitycalculationoflowrisesfrcshearwallwithcfstcolumnsbasedonsimplifiedsoftenedstrutandtiemodel AT yapengqin shearbearingcapacitycalculationoflowrisesfrcshearwallwithcfstcolumnsbasedonsimplifiedsoftenedstrutandtiemodel AT yiwang shearbearingcapacitycalculationoflowrisesfrcshearwallwithcfstcolumnsbasedonsimplifiedsoftenedstrutandtiemodel AT qingjieyang shearbearingcapacitycalculationoflowrisesfrcshearwallwithcfstcolumnsbasedonsimplifiedsoftenedstrutandtiemodel AT jiezhang shearbearingcapacitycalculationoflowrisesfrcshearwallwithcfstcolumnsbasedonsimplifiedsoftenedstrutandtiemodel |