IfeOlorun Olofin | Jiangsu University (original) (raw)
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Papers by IfeOlorun Olofin
Selected scientific papers, Nov 30, 2023
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Stavební obzor - Civil Engineering Journal, 2021
This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in ... more This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in view of the fact that suspen domes have been made with steel cables as its cable-strut system for centuries due to its availability. Indisputably, CFRP cables have become the material of choice in the 21st century for its efficiency and innovative design in bridge works. However, the application of CFRP cables to other cable structures has been limited. The need for its application to other cable structures is required in order to acquire more knowledge about its behavioral patterns. This paper gives preliminary findings of a successfully designed and constructed suspen dome prototype which comprehensively deepens the understanding of CFRP cable performance as a cable-strut system in a suspen dome. Results show that with its high stiffness, low weight and high strength, CFRP has proven to be a technically efficient and adequately strengthening material for structurally improving the adeq...
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This research was to create software that can analyze, design and determine the cost of a beam/ d... more This research was to create software that can analyze, design and determine the cost of a beam/ deck for a simple supported bridge, the name of the software is Ivy. The method employed for the analysis is a grillage method, using finite element (beam element) and comparing the results with a manual approach (moment distribution and influence line). A 15m span was considered with a width of 7.5m, using a grillage distance of 1.5m, a knife edge load of 120KN and a uniformly distributed load of 30KN/m. The BS5400 and BS 8110 were used for the analysis and design. The result shows that values for the maximum bending moment locating the knife edge at 3m from the support is Mmax = 412KNm (manual approach), Mmax= 506.25KNm (Ivy) to give a percentage difference of 18.6%, at 6m, Mmax= 653KNm (manual approach), and Mmax= 566.25KNm with a percentage difference of -15.3%, at mid span 7.5m, it is Mmax= 789KNm (manual approach), Mmax= 768.75KNm(ivy) indicating a percentage difference of -2.63%. S...
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Civil Engineering Journal, 2017
In order to establish a conclusive result for the application of carbon fibre reinforced polymer ... more In order to establish a conclusive result for the application of carbon fibre reinforced polymer (CFRP) cable as a tensegrity system for a suspen dome, the structural integrity assessment of the system, subjected to transient load, must be considered. This paper gives a preliminary assessment of the dynamic behavior of carbon fibre reinforced polymer cable in a suspen dome in comparison with that of the steel counterpart, using a small model of 4 m span and 0.4 m rise. A commercial finite element software namely ANSYS was used for the structure simulation in respect of the experimental design. The results from the simulation show that the carbon fibre reinforced polymer cable gives a reliable assessment as the steel counterpart. The natural frequencies of CFRP cables are higher than those of steel cables due to the CFRP cables’ high stiffness-to-weight ratio and less curvature under gravity loads. CFRP cables influence the structure with good stiffness which provides good vibration ...
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The Open Civil Engineering Journal, 2017
With the recent trend in long span space structures, suspen-dome as a roof structure is becoming ... more With the recent trend in long span space structures, suspen-dome as a roof structure is becoming popular. Therefore, as the construction of long span structures increases in the world today, the effectiveness of suspen-dome structure should be considered in order to undertake further development of the system which may be required to improve its design and construction. One direction of the improvement of such structures is to seek new materials other than using the traditional steel to yield better results. This paper is a review of the suspen-dome system, including its characteristics, its use in space construction, its success as well as the possibility of replacing steel with other materials for better results. From the review, it is found that using steel cables in suspen-dome structure has some shortcomings which can be eliminated by the use of other materials. It is suggested that Carbon Fibre Reinforced Polymer (CFRP) can be the material because of its advantages over steel ...
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Modelling, Measurement and Control B
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International Journal of Research in Engineering and Technology, 2015
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In order to establish a conclusive result for the application of carbon fibre reinforced polymer ... more In order to establish a conclusive result for the application of carbon fibre reinforced polymer (CFRP) cable as a tensegrity system for a suspen dome, the structural integrity assessment of the system, subjected to transient load, must be considered. This paper gives a preliminary assessment of the dynamic behavior of carbon fibre reinforced polymer cable in a suspen dome in comparison with that of the steel counterpart, using a small model of 4 m span and 0.4 m rise. A commercial finite element software namely ANSYS was used for the structure simulation in respect of the experimental design. The results from the simulation show that the carbon fibre reinforced polymer cable gives a reliable assessment as the steel counterpart. The natural frequencies of CFRP cables are higher than those of steel cables due to the CFRP cables' high stiffness-to-weight ratio and less curvature under gravity loads. CFRP cables influence the structure with good stiffness which provides good vibrat...
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Stavební obzor - Civil Engineering Journal, 2019
Bookmarks Related papers MentionsView impact
This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in ... more This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in view of the fact that suspen domes have been made with steel cables as its cable-strut system for centuries due to its availability. Indisputably, CFRP cables have become the material of choice in the 21 century for its efficiency and innovative design in bridge works. However, the application of CFRP cables to other cable structures has been limited. The need for its application to other cable structures is required in order to acquire more knowledge about its behavioral patterns. This paper gives preliminary findings of a successfully designed and constructed suspen dome prototype which comprehensively deepens the understanding of CFRP cable performance as a cable-strut system in a suspen dome. Results show that with its high stiffness, low weight and high strength, CFRP has proven to be a technically efficient and adequately strengthening material for structurally improving the adequa...
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International Journal of Civil Engineering
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This paper reports the result of a simple suspen-dome model created to study the behavior of a Ca... more This paper reports the result of a simple suspen-dome model created to study the behavior of a Carbon Fibre Reinforced Polymer (CFRP) tensegrity system as a replacement for steel tensegrity system in a suspen dome through modal numerical analysis. Based on the structural vibration theory and the theory of finite element model (FEM), the finite element model of the structure was established with ADPLANSYS. The vibration mode and frequency calculated for the steel tensegrity system were compared with those of carbon fibre reinforced polymer to validate the carbon fibre reinforced polymer tensegrity system.
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Composite Materials [Working Title], Nov 30, 2019
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The study for this paper investigated the feasibility of using carbon fibre reinforced polymer as... more The study for this paper investigated the feasibility of using carbon fibre reinforced polymer as the tensegrity system in a suspen dome for which steel cables are currently used to construct. The objective is to find out if carbon fibre reinforced polymer cables, which are becoming material of choice for its efficiency and effectiveness, can replace steel successfully as the tensegrity system in a suspen dome. Based on bond theory, the length and structure of the anchorage for the hoop and radial cable were optimized by finite element analysis. Similarly, a uniaxial tensile test was carried out to study the failure mechanism and to verify the anchoring bearing capacity. The experimental results showed that the failure mode of the anchoring system was mainly slip failure. The stress state of the anchorage system is in relation with the load size. The anchorage system designed in this study satisfies the requirement for the subsequent test for carbon fibre reinforced polymer cable in...
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Stavební obzor - Civil Engineering Journal
Bookmarks Related papers MentionsView impact
Selected scientific papers, Nov 30, 2023
Bookmarks Related papers MentionsView impact
Stavební obzor - Civil Engineering Journal, 2021
This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in ... more This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in view of the fact that suspen domes have been made with steel cables as its cable-strut system for centuries due to its availability. Indisputably, CFRP cables have become the material of choice in the 21st century for its efficiency and innovative design in bridge works. However, the application of CFRP cables to other cable structures has been limited. The need for its application to other cable structures is required in order to acquire more knowledge about its behavioral patterns. This paper gives preliminary findings of a successfully designed and constructed suspen dome prototype which comprehensively deepens the understanding of CFRP cable performance as a cable-strut system in a suspen dome. Results show that with its high stiffness, low weight and high strength, CFRP has proven to be a technically efficient and adequately strengthening material for structurally improving the adeq...
Bookmarks Related papers MentionsView impact
This research was to create software that can analyze, design and determine the cost of a beam/ d... more This research was to create software that can analyze, design and determine the cost of a beam/ deck for a simple supported bridge, the name of the software is Ivy. The method employed for the analysis is a grillage method, using finite element (beam element) and comparing the results with a manual approach (moment distribution and influence line). A 15m span was considered with a width of 7.5m, using a grillage distance of 1.5m, a knife edge load of 120KN and a uniformly distributed load of 30KN/m. The BS5400 and BS 8110 were used for the analysis and design. The result shows that values for the maximum bending moment locating the knife edge at 3m from the support is Mmax = 412KNm (manual approach), Mmax= 506.25KNm (Ivy) to give a percentage difference of 18.6%, at 6m, Mmax= 653KNm (manual approach), and Mmax= 566.25KNm with a percentage difference of -15.3%, at mid span 7.5m, it is Mmax= 789KNm (manual approach), Mmax= 768.75KNm(ivy) indicating a percentage difference of -2.63%. S...
Bookmarks Related papers MentionsView impact
Civil Engineering Journal, 2017
In order to establish a conclusive result for the application of carbon fibre reinforced polymer ... more In order to establish a conclusive result for the application of carbon fibre reinforced polymer (CFRP) cable as a tensegrity system for a suspen dome, the structural integrity assessment of the system, subjected to transient load, must be considered. This paper gives a preliminary assessment of the dynamic behavior of carbon fibre reinforced polymer cable in a suspen dome in comparison with that of the steel counterpart, using a small model of 4 m span and 0.4 m rise. A commercial finite element software namely ANSYS was used for the structure simulation in respect of the experimental design. The results from the simulation show that the carbon fibre reinforced polymer cable gives a reliable assessment as the steel counterpart. The natural frequencies of CFRP cables are higher than those of steel cables due to the CFRP cables’ high stiffness-to-weight ratio and less curvature under gravity loads. CFRP cables influence the structure with good stiffness which provides good vibration ...
Bookmarks Related papers MentionsView impact
The Open Civil Engineering Journal, 2017
With the recent trend in long span space structures, suspen-dome as a roof structure is becoming ... more With the recent trend in long span space structures, suspen-dome as a roof structure is becoming popular. Therefore, as the construction of long span structures increases in the world today, the effectiveness of suspen-dome structure should be considered in order to undertake further development of the system which may be required to improve its design and construction. One direction of the improvement of such structures is to seek new materials other than using the traditional steel to yield better results. This paper is a review of the suspen-dome system, including its characteristics, its use in space construction, its success as well as the possibility of replacing steel with other materials for better results. From the review, it is found that using steel cables in suspen-dome structure has some shortcomings which can be eliminated by the use of other materials. It is suggested that Carbon Fibre Reinforced Polymer (CFRP) can be the material because of its advantages over steel ...
Bookmarks Related papers MentionsView impact
Modelling, Measurement and Control B
Bookmarks Related papers MentionsView impact
International Journal of Research in Engineering and Technology, 2015
Bookmarks Related papers MentionsView impact
In order to establish a conclusive result for the application of carbon fibre reinforced polymer ... more In order to establish a conclusive result for the application of carbon fibre reinforced polymer (CFRP) cable as a tensegrity system for a suspen dome, the structural integrity assessment of the system, subjected to transient load, must be considered. This paper gives a preliminary assessment of the dynamic behavior of carbon fibre reinforced polymer cable in a suspen dome in comparison with that of the steel counterpart, using a small model of 4 m span and 0.4 m rise. A commercial finite element software namely ANSYS was used for the structure simulation in respect of the experimental design. The results from the simulation show that the carbon fibre reinforced polymer cable gives a reliable assessment as the steel counterpart. The natural frequencies of CFRP cables are higher than those of steel cables due to the CFRP cables' high stiffness-to-weight ratio and less curvature under gravity loads. CFRP cables influence the structure with good stiffness which provides good vibrat...
Bookmarks Related papers MentionsView impact
Stavební obzor - Civil Engineering Journal, 2019
Bookmarks Related papers MentionsView impact
This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in ... more This study investigated the feasibility of using CFRP cable as tension cables in suspen domes in view of the fact that suspen domes have been made with steel cables as its cable-strut system for centuries due to its availability. Indisputably, CFRP cables have become the material of choice in the 21 century for its efficiency and innovative design in bridge works. However, the application of CFRP cables to other cable structures has been limited. The need for its application to other cable structures is required in order to acquire more knowledge about its behavioral patterns. This paper gives preliminary findings of a successfully designed and constructed suspen dome prototype which comprehensively deepens the understanding of CFRP cable performance as a cable-strut system in a suspen dome. Results show that with its high stiffness, low weight and high strength, CFRP has proven to be a technically efficient and adequately strengthening material for structurally improving the adequa...
Bookmarks Related papers MentionsView impact
International Journal of Civil Engineering
Bookmarks Related papers MentionsView impact
This paper reports the result of a simple suspen-dome model created to study the behavior of a Ca... more This paper reports the result of a simple suspen-dome model created to study the behavior of a Carbon Fibre Reinforced Polymer (CFRP) tensegrity system as a replacement for steel tensegrity system in a suspen dome through modal numerical analysis. Based on the structural vibration theory and the theory of finite element model (FEM), the finite element model of the structure was established with ADPLANSYS. The vibration mode and frequency calculated for the steel tensegrity system were compared with those of carbon fibre reinforced polymer to validate the carbon fibre reinforced polymer tensegrity system.
Bookmarks Related papers MentionsView impact
Composite Materials [Working Title], Nov 30, 2019
Bookmarks Related papers MentionsView impact
The study for this paper investigated the feasibility of using carbon fibre reinforced polymer as... more The study for this paper investigated the feasibility of using carbon fibre reinforced polymer as the tensegrity system in a suspen dome for which steel cables are currently used to construct. The objective is to find out if carbon fibre reinforced polymer cables, which are becoming material of choice for its efficiency and effectiveness, can replace steel successfully as the tensegrity system in a suspen dome. Based on bond theory, the length and structure of the anchorage for the hoop and radial cable were optimized by finite element analysis. Similarly, a uniaxial tensile test was carried out to study the failure mechanism and to verify the anchoring bearing capacity. The experimental results showed that the failure mode of the anchoring system was mainly slip failure. The stress state of the anchorage system is in relation with the load size. The anchorage system designed in this study satisfies the requirement for the subsequent test for carbon fibre reinforced polymer cable in...
Bookmarks Related papers MentionsView impact
Stavební obzor - Civil Engineering Journal
Bookmarks Related papers MentionsView impact