Performance of externally reinforced CHS X-joints subjected to axial loads
Abstract Circular hollow sections (CHS) have evolved as the primary choice for the tubular lattice structures, due to their excellent mechanical properties and aesthetic appearance. However, enhancing the joints capacities in such structures poses as challenge to structural designer. Recent research...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-05-01
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| Series: | Journal of Engineering and Applied Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s44147-023-00210-y |
| _version_ | 1797827510704013312 |
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| author | Ashraf Osman Peter Gerguis Sameh Gaawan |
| author_facet | Ashraf Osman Peter Gerguis Sameh Gaawan |
| author_sort | Ashraf Osman |
| collection | DOAJ |
| description | Abstract Circular hollow sections (CHS) have evolved as the primary choice for the tubular lattice structures, due to their excellent mechanical properties and aesthetic appearance. However, enhancing the joints capacities in such structures poses as challenge to structural designer. Recent research addressed several external reinforcing schemes that can be utilized for strengthening CHS X-joints. Although each of these schemes was studied thoroughly, no collective study was conducted to compare between their efficiencies in enhancing CHS X-joints strengths and stiffnesses. This study focuses on evaluating the structural performance of these techniques relative to each other. The results showed that CHS X-joints strengthened using outer flanged pipe to confine brace-chord intersection achieved the highest strength and stiffness enhancement among the examined joints. Also, it proved that joints strengthened with single or double outer stiffeners yielded acceptable capacity enhancement with the advantages of easy fabrication and acceptable aesthetically appearance. |
| first_indexed | 2024-04-09T12:49:29Z |
| format | Article |
| id | doaj.art-7399c8ef8fc44e18927e991d7103ff3e |
| institution | Directory Open Access Journal |
| issn | 1110-1903 2536-9512 |
| language | English |
| last_indexed | 2024-04-09T12:49:29Z |
| publishDate | 2023-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of Engineering and Applied Science |
| spelling | doaj.art-7399c8ef8fc44e18927e991d7103ff3e2023-05-14T11:18:14ZengSpringerOpenJournal of Engineering and Applied Science1110-19032536-95122023-05-0170112410.1186/s44147-023-00210-yPerformance of externally reinforced CHS X-joints subjected to axial loadsAshraf Osman0Peter Gerguis1Sameh Gaawan2Structural Engineering Department, Cairo UniversityStructural Engineering Department, Cairo UniversityFaculty of Engineering Mataria branch, Structures Department, Helwan UniversityAbstract Circular hollow sections (CHS) have evolved as the primary choice for the tubular lattice structures, due to their excellent mechanical properties and aesthetic appearance. However, enhancing the joints capacities in such structures poses as challenge to structural designer. Recent research addressed several external reinforcing schemes that can be utilized for strengthening CHS X-joints. Although each of these schemes was studied thoroughly, no collective study was conducted to compare between their efficiencies in enhancing CHS X-joints strengths and stiffnesses. This study focuses on evaluating the structural performance of these techniques relative to each other. The results showed that CHS X-joints strengthened using outer flanged pipe to confine brace-chord intersection achieved the highest strength and stiffness enhancement among the examined joints. Also, it proved that joints strengthened with single or double outer stiffeners yielded acceptable capacity enhancement with the advantages of easy fabrication and acceptable aesthetically appearance.https://doi.org/10.1186/s44147-023-00210-yCircular hollow steel (CHS)Comparative studyFinite elementStiffenersX-JointStrengthening |
| spellingShingle | Ashraf Osman Peter Gerguis Sameh Gaawan Performance of externally reinforced CHS X-joints subjected to axial loads Journal of Engineering and Applied Science Circular hollow steel (CHS) Comparative study Finite element Stiffeners X-Joint Strengthening |
| title | Performance of externally reinforced CHS X-joints subjected to axial loads |
| title_full | Performance of externally reinforced CHS X-joints subjected to axial loads |
| title_fullStr | Performance of externally reinforced CHS X-joints subjected to axial loads |
| title_full_unstemmed | Performance of externally reinforced CHS X-joints subjected to axial loads |
| title_short | Performance of externally reinforced CHS X-joints subjected to axial loads |
| title_sort | performance of externally reinforced chs x joints subjected to axial loads |
| topic | Circular hollow steel (CHS) Comparative study Finite element Stiffeners X-Joint Strengthening |
| url | https://doi.org/10.1186/s44147-023-00210-y |
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