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Yosua Riskiyanto Palentek - One of the best experts on this subject based on the ideXlab platform.
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study on Buckling Strength at deck leg of fixed offshore platform
International Journal of Engineering, 2016Co-Authors: Muhammad Zubair Muis Alie, Arga Aditya, Yosua Riskiyanto PalentekAbstract:A deck of fixed offshore platform is location where the all activities are performed, i.e. deck must be supported by leg with adequately Strength under vertical or horizontal loading. The present study is focused on the Buckling Strength taking the deck leg of fixed jacket offshore platform into account. The axial compressive load is applied to the deck leg of the structure. Because dimension front view and side view of the deck structure is completely different, so that the analysis is conducted by two stages. To investigate the critical Buckling load and critical Buckling stress including its deformation, the plane-frame (2D) analysis is considered. The Non-linear Finite Element Method so-called Structural Analysis Program (SAP) is adopted for the investigation of the structural behaviors. The critical Buckling load and stress ratio obtained by Finite Element Analysis (FEA) is compared with the simple formula. As a result, it can be concluded that the stress ratio of the combination between axial compression and bending is less than 1,0 which indicates that the structure is safe.
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the effect of d t ratio on Buckling Strength analysis of fixed offshore platform
International Journal of Engineering, 2016Co-Authors: Muhammad Zubair Muis Alie, Daud Geris Sesa, Yosua Riskiyanto PalentekAbstract:A jacket, or template, structures are still the most common offshore structures used for drilling and production. Fixed jacket structures consist of tubular members interconnected to form a threedimensional space frame. Hence, the jacket structure can be categorized into a column structure. The D/t ratio of a typical member on the jacket structure has significant influence to Buckling Strength. Although only the axial load acts on the jacket legs, the local and global deformation of the structural member due to this load must be taken into account. This paper discusses the effect of D/t ratio on fixed jacket platform in the Buckling Strength analysis. A kind of fixed jacket offshore structure namely tripod is taken as the object of the analysis. Only the axial load is considered and it is applied to all jacket legs. The material and dimension of the structure are taken based on the structural member. Crack and corrosion are not considered in the analysis. To assess the Buckling Strength of the structure due to the effect of D/t ratio, the Finite Element Method (FEM) is performed. As a fundamental case, the Buckling Strength analysis is conducted on the structure by taking two dimensional planes (2D) into consideration to obtain the critical Buckling load due to the effect of D/t ratio for two dimensional plane. The result obtained by FEA is compared with the analytical solution.
Magdi Mohareb - One of the best experts on this subject based on the ideXlab platform.
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distortional lateral torsional Buckling analysis of beams with overhangs
Journal of Structural Engineering-asce, 2019Co-Authors: Payam Pezeshky, Arash Sahraei, Magdi MoharebAbstract:AbstractThe present study investigated the effect of web distortion on the lateral torsional Buckling Strength of Gerber systems. Toward this goal, a number of modifications were introduced into tw...
Mohamed Elgaaly - One of the best experts on this subject based on the ideXlab platform.
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thin steel plate shear walls behavior and analysis
Thin-walled Structures, 1998Co-Authors: Mohamed ElgaalyAbstract:Abstract Steel plate shear walls have been used in buildings in North America and Japan. Until recently, the design practice has been to limit the Strength of the wall to the Buckling Strength of the plate. The post-Buckling Strength of thin plates subjected to shear has been recognized for more than 60 years, since it was outlined by Wagner in the early 1930s. Tests of a quarter and one third scale specimens of thin steel plate shear walls under cyclic loading were performed; the tests are described and the results are summarized. An analytical model to determine the behavior of thin steel plate shear walls was developed and is given. The model is capable of depicting the behavior of walls with plates welded or bolted to the surrounding beams and columns of the building frame. Comparisons between the analytical and experimental results are made.
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postBuckling behavior of steel plate shear walls under cyclic loads
Journal of Structural Engineering-asce, 1993Co-Authors: Mohamed Elgaaly, Vincent CacceseAbstract:In current design practice the capacity of a steel‐plate shear wall is limited to the elastic Buckling Strength of its plate panels. This practice results not only in a conservative design, but also in an undesirable one where the columns yield and may buckle before the plate reaches a fraction of its capacity. Plate Buckling is not synonymous with failure and if the plate is adequately supported along its boundaries, as in the case of the shear wall, the postBuckling Strength can be several times the theoretical Buckling Strength. Furthermore, due to the unavoidable out‐of‐plane imperfections, no change in the plate behavior will be observed at the theoretically calculated Buckling load. Although the post‐Buckling behavior of plates under monotonic loads has been under investigation for more than half a century, this behavior under cyclic loading has not been investigated until recently. One test was conducted at the University of Alberta and 10 tests were conducted at the University of Maine. In this pa...
Muhammad Zubair Muis Alie - One of the best experts on this subject based on the ideXlab platform.
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study on Buckling Strength at deck leg of fixed offshore platform
International Journal of Engineering, 2016Co-Authors: Muhammad Zubair Muis Alie, Arga Aditya, Yosua Riskiyanto PalentekAbstract:A deck of fixed offshore platform is location where the all activities are performed, i.e. deck must be supported by leg with adequately Strength under vertical or horizontal loading. The present study is focused on the Buckling Strength taking the deck leg of fixed jacket offshore platform into account. The axial compressive load is applied to the deck leg of the structure. Because dimension front view and side view of the deck structure is completely different, so that the analysis is conducted by two stages. To investigate the critical Buckling load and critical Buckling stress including its deformation, the plane-frame (2D) analysis is considered. The Non-linear Finite Element Method so-called Structural Analysis Program (SAP) is adopted for the investigation of the structural behaviors. The critical Buckling load and stress ratio obtained by Finite Element Analysis (FEA) is compared with the simple formula. As a result, it can be concluded that the stress ratio of the combination between axial compression and bending is less than 1,0 which indicates that the structure is safe.
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the effect of d t ratio on Buckling Strength analysis of fixed offshore platform
International Journal of Engineering, 2016Co-Authors: Muhammad Zubair Muis Alie, Daud Geris Sesa, Yosua Riskiyanto PalentekAbstract:A jacket, or template, structures are still the most common offshore structures used for drilling and production. Fixed jacket structures consist of tubular members interconnected to form a threedimensional space frame. Hence, the jacket structure can be categorized into a column structure. The D/t ratio of a typical member on the jacket structure has significant influence to Buckling Strength. Although only the axial load acts on the jacket legs, the local and global deformation of the structural member due to this load must be taken into account. This paper discusses the effect of D/t ratio on fixed jacket platform in the Buckling Strength analysis. A kind of fixed jacket offshore structure namely tripod is taken as the object of the analysis. Only the axial load is considered and it is applied to all jacket legs. The material and dimension of the structure are taken based on the structural member. Crack and corrosion are not considered in the analysis. To assess the Buckling Strength of the structure due to the effect of D/t ratio, the Finite Element Method (FEM) is performed. As a fundamental case, the Buckling Strength analysis is conducted on the structure by taking two dimensional planes (2D) into consideration to obtain the critical Buckling load due to the effect of D/t ratio for two dimensional plane. The result obtained by FEA is compared with the analytical solution.
Vincent Caccese - One of the best experts on this subject based on the ideXlab platform.
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postBuckling behavior of steel plate shear walls under cyclic loads
Journal of Structural Engineering-asce, 1993Co-Authors: Mohamed Elgaaly, Vincent CacceseAbstract:In current design practice the capacity of a steel‐plate shear wall is limited to the elastic Buckling Strength of its plate panels. This practice results not only in a conservative design, but also in an undesirable one where the columns yield and may buckle before the plate reaches a fraction of its capacity. Plate Buckling is not synonymous with failure and if the plate is adequately supported along its boundaries, as in the case of the shear wall, the postBuckling Strength can be several times the theoretical Buckling Strength. Furthermore, due to the unavoidable out‐of‐plane imperfections, no change in the plate behavior will be observed at the theoretically calculated Buckling load. Although the post‐Buckling behavior of plates under monotonic loads has been under investigation for more than half a century, this behavior under cyclic loading has not been investigated until recently. One test was conducted at the University of Alberta and 10 tests were conducted at the University of Maine. In this pa...
