Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and Moments
Pinned base plate connections are the most common base connection used in low-rise steel buildings. In this research, an extensive parametric study is performed using the Finite Element (FE) software Abaqus to determine the elastic rotational stiffness, moment resistance, and energy absorption of th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Buildings |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-5309/11/8/368 |
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| author | Mahmoud T. Nawar Ehab B. Matar Hassan M. Maaly Ahmed G. Alaaser Ayman El-Zohairy |
| author_facet | Mahmoud T. Nawar Ehab B. Matar Hassan M. Maaly Ahmed G. Alaaser Ayman El-Zohairy |
| author_sort | Mahmoud T. Nawar |
| collection | DOAJ |
| description | Pinned base plate connections are the most common base connection used in low-rise steel buildings. In this research, an extensive parametric study is performed using the Finite Element (FE) software Abaqus to determine the elastic rotational stiffness, moment resistance, and energy absorption of the pinned base plate connection connected to a reinforced concrete footing and subjected to an eccentric axial load. The developed FE model is validated using experimental results from the literature. Moreover, an intensive parametric study is conducted to understand the behavior of these connections better. The investigated parameters include the base plate thickness, anchor bolt diameter, and arrangement and number of bolts. The most effective parameters that affect the elastic rotational stiffness and moment resistance of pinned base connections are the anchor bolt arrangement and diameter. The maximum increase in the rotational stiffness was 53% for the anchor bolt diameter of 30 mm when the base plate thickness increased from 12 mm to 30 mm. Based on the base plate thickness, the moment resistance is improved by 150–260% when the bolt diameter increases from 12 mm to 30 mm. |
| first_indexed | 2024-03-10T08:57:59Z |
| format | Article |
| id | doaj.art-eebdc729f241484a804e19a74a02b6b0 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T08:57:59Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-eebdc729f241484a804e19a74a02b6b02023-11-22T07:01:01ZengMDPI AGBuildings2075-53092021-08-0111836810.3390/buildings11080368Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and MomentsMahmoud T. Nawar0Ehab B. Matar1Hassan M. Maaly2Ahmed G. Alaaser3Ayman El-Zohairy4Structural Engineering Department, Zagazig University, Zagazig 44519, EgyptStructural Engineering Department, Zagazig University, Zagazig 44519, EgyptStructural Engineering Department, Zagazig University, Zagazig 44519, EgyptStructural Engineering Department, Zagazig University, Zagazig 44519, EgyptDepartment of Engineering and Technology, Texas A&M University-Commerce, Commerce, TX 75429, USAPinned base plate connections are the most common base connection used in low-rise steel buildings. In this research, an extensive parametric study is performed using the Finite Element (FE) software Abaqus to determine the elastic rotational stiffness, moment resistance, and energy absorption of the pinned base plate connection connected to a reinforced concrete footing and subjected to an eccentric axial load. The developed FE model is validated using experimental results from the literature. Moreover, an intensive parametric study is conducted to understand the behavior of these connections better. The investigated parameters include the base plate thickness, anchor bolt diameter, and arrangement and number of bolts. The most effective parameters that affect the elastic rotational stiffness and moment resistance of pinned base connections are the anchor bolt arrangement and diameter. The maximum increase in the rotational stiffness was 53% for the anchor bolt diameter of 30 mm when the base plate thickness increased from 12 mm to 30 mm. Based on the base plate thickness, the moment resistance is improved by 150–260% when the bolt diameter increases from 12 mm to 30 mm.https://www.mdpi.com/2075-5309/11/8/368rotational stiffnesspinned base connectionmoment resistanceenergy absorptionanchor boltfinite element |
| spellingShingle | Mahmoud T. Nawar Ehab B. Matar Hassan M. Maaly Ahmed G. Alaaser Ayman El-Zohairy Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and Moments Buildings rotational stiffness pinned base connection moment resistance energy absorption anchor bolt finite element |
| title | Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and Moments |
| title_full | Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and Moments |
| title_fullStr | Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and Moments |
| title_full_unstemmed | Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and Moments |
| title_short | Assessment of Rotational Stiffness for Metallic Hinged Base Plates under Axial Loads and Moments |
| title_sort | assessment of rotational stiffness for metallic hinged base plates under axial loads and moments |
| topic | rotational stiffness pinned base connection moment resistance energy absorption anchor bolt finite element |
| url | https://www.mdpi.com/2075-5309/11/8/368 |
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