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Mahmood Md. Tahir - One of the best experts on this subject based on the ideXlab platform.

  • FEASIBILITY OF USING BOLTED SHEAR CONNECTOR WITH COLD-FORMED STEEL IN Composite Construction
    Jurnal Teknologi, 2016
    Co-Authors: Mustapha Muhammad Lawan, Mahmood Md. Tahir, Emad Hosseinpour
    Abstract:

    In conventional Composite Construction for hot-rolled steel (HRS) section, the Composite action is usually achieved by using headed studs shear connectors. But, for cold-formed steel (CFS) section, the use of headed studs is not feasible as the section is very thin and difficult to be weld.  Therefore, an innovative way of shear connection mechanism of using bolt and nut is suggested in this study. This paper presents the feasibility of using bolt as shear connector by presenting experimental test results so as to explore more on their capability to be used as shear connectors. The study investigated the structural capability of the proposed bolted shear connector when used in concrete known as Self-compacting concrete (SCC) integrated with CFS to provide the required Composite action. Push out test specimens with bolted shear connector of grade 8.8 at designated intervals longitudinally spaced were fabricated, cast and tested to failure. The results showed that the proposed shear connector was structurally capable and also an appreciable strength resistance was achieved.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In conventional Composite Construction for buildings and bridges, Hot-Rolled Steel (HRS) section is well known to be used. The Composite action is usually achieved by using conventional headed stud shear connectors. However, for Cold-Formed Steel (CFS) section, the use of headed stud shear connectors is not feasible as the section is very thin and incapable to be weld. Therefore, a suitable shear connection system of bolt and nut is proposed in this study by varying the size of the bolted shear connectors. This paper presents the prospect of using a bolt and nut as shear connector that could be well-suited with CFS section when integrated in Self-Compacting Concrete (SCC). The experimental test comprised of push-out and was conducted to determine the strength and ductility of the proposed bolted shear connectors as used in Composite Construction. Eight push-out test specimens of bolted shear connector size consist of M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results show that the bolted shear connectors used to possess good shear resistance capacity. Influence of varying the size of the bolted shear connectors was investigated. The results show that the size of bolted shear connectors influenced the ultimate strength capacity of the shear connectors significantly.

  • Impact of Shear Connector Spacing in Composite Construction Incorporating Cold-Formed Steel Channel Lipped Section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Anis Saggaff, Mahmood Md. Tahir, Mustapha Muhammad Lawan, Jahangir Mirza
    Abstract:

    Composite Construction with traditional Hot Rolled Steel (HRS) sections has been known to perform much better than with Cold-Formed Steel (CFS) sections for decades; as observed by extensive rules and requirements for their design as prescribed in current design codes. There is, however, limited technical information available about the use of Composite systems that incorporates the use of light gauge steel sections, despite the potentials of the system in residential and light industrial Constructions. However, the Composite action of CFS with an in-situ concrete, especially Self-Compacting Concrete (SCC) using bolted shear connector has not yet established. Therefore, this study attempted to investigate the behaviour of bolted shear connector used with SCC and CFS to form a Composite beam system at designated longitudinal spacing. Push-out and full-scale test specimens of longitudinal spacing of 250 mm and 300 mm with bolted shear connector of grade 8.8 installed with single nut and washer on the CFS flange and beneath it were fabricated, cast and tested till failure occurred. The experimental test results shows that the bolted shear connector possessed good ultimate strength and ultimate moment capacities with an increase in the longitudinal spacing of the bolted shear connector from 250 mm and to 300 mm respectively. It was therefore concluded that, longitudinal spacing between bolted shear connectors had significantly influenced the shear connector strength capacities.

  • Composite Construction OF COLD-FORMED STEEL (CFS) SECTION WITH HIGH STRENGTH BOLTED SHEAR CONNECTOR
    Jurnal Teknologi, 2015
    Co-Authors: Mustapha Muhammad Lawan, Mahmood Md. Tahir, Mohd Hanim Osman
    Abstract:

    Composite Construction is well known to be effectively used in the Construction of buildings and bridges using hot rolled steel (HRS) and headed studs connectors. The shear connectors provides the enhancement as established in current design codes. In this paper, the shear connection mechanism was proposed using high strength bolted shear connector to provide Composite action between concrete and the steel section. The conventional headed stud shear connector was eliminated since Cold-formed steel (CFS) was used and welding was not practically possible due to thinness nature of the CFS section. Therefore, in this study investigation was carried out on the strength capacity, ductility and the ultimate flexural capacity of the proposed high strength bolted shear connector and the Composite beam specimens respectively. Four push-out and two full-scale Composite beam specimens were fabricated using high strength M16 bolted shear connector of Grade 8.8 connected to the top flanges of the CFS I-section and tested to failure using push-out and four-point bending tests respectively. The results show that ultimate load and ultimate moment capacities of the proposed system were significantly improved by using the proposed connectors. The experimental results were compared with theoretical results based on the provision of Eurocode 4, and good agreement between the results was observed. In conclusion, compared results proved that the ultimate moment capacity of the proposed Composite beams can be estimated efficiently by using the constitutive laws as prescribed by Eurocodes and British standards.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Abstract of Emerging Trends in Scientific Research, 2015
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In traditional Composite Construction for Hot-rolled steel (HRS) section, the Composite action is usually achieved by the use of traditional headed stud shear connectors. However, for Cold-formed steel (CFS) section, the use of headed studs shear connectors is not practicable as the section is very thin and difficult to receive welding. Therefore, an appropriate shear connection mechanism of bolt and nut is proposed in this study. This paper presents the possibility of using a bolt and nut as shear connector that could be compatible with CFS section. The experimental tests results were conducted to ascertain the performance of the proposed bolted shear connectors. The aim of this paper was to investigate the structural performance of bolted shear connectors in providing Composite action between Self-compacting concrete (SCC) slab and CFS section integrated as Composite beam system. Nine push-out test specimens of bolted shear connector size M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results shows that the bolted shear connectors used possessed a good shear resistance capacity. Not much difference in strength capacity of specimens with M14 and M16 bolted shear connectors was found, perhaps due to buckling failure of the CFS section. Effect of varying the size of the bolted shear connectors was investigated. The results shows that the size of bolted shear connectors did influenced the ultimate strength capacity of the bolted shear connectors.

Cher Siang Tan - One of the best experts on this subject based on the ideXlab platform.

  • Push-off tests on pin-connected shear studs with Composite steel–concrete beams
    Construction and Building Materials, 2009
    Co-Authors: Mahmood Md. Tahir, Poi Ngian Shek, Cher Siang Tan
    Abstract:

    Abstract A new stud system fastened with high strength pins was investigated experimentally in this paper. This system is reported to be the fastest and the most economical method for installing studs to steel roof and floor decking in Composite Construction. It is 5–10 times faster than welding, screwing, or using powder actuated tools, which will directly reduce the fastening cost. These advantages would make significant contribution to the popularity of Composite Construction. The shear capacity of headed studs in Composite steel–concrete beams has been determined experimentally in seven full-scale push-off tests. The tests were used to study the strength and ductility of the proposed stud system. Maximum resistances from the experimental tests are compared with the predictions of EC 4 and results from other researchers. The capacity of the stud is reduced due to fracture of the pins that occur before the shear stud had yielded. The proposed stud system can be improved further by increasing the size and the strength of the pins and base plate.

  • push off tests on pin connected shear studs with Composite steel concrete beams
    Construction and Building Materials, 2009
    Co-Authors: Mahmood Md. Tahir, Poi Ngian Shek, Cher Siang Tan
    Abstract:

    Abstract A new stud system fastened with high strength pins was investigated experimentally in this paper. This system is reported to be the fastest and the most economical method for installing studs to steel roof and floor decking in Composite Construction. It is 5–10 times faster than welding, screwing, or using powder actuated tools, which will directly reduce the fastening cost. These advantages would make significant contribution to the popularity of Composite Construction. The shear capacity of headed studs in Composite steel–concrete beams has been determined experimentally in seven full-scale push-off tests. The tests were used to study the strength and ductility of the proposed stud system. Maximum resistances from the experimental tests are compared with the predictions of EC 4 and results from other researchers. The capacity of the stud is reduced due to fracture of the pins that occur before the shear stud had yielded. The proposed stud system can be improved further by increasing the size and the strength of the pins and base plate.

Jahangir Mirza - One of the best experts on this subject based on the ideXlab platform.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In conventional Composite Construction for buildings and bridges, Hot-Rolled Steel (HRS) section is well known to be used. The Composite action is usually achieved by using conventional headed stud shear connectors. However, for Cold-Formed Steel (CFS) section, the use of headed stud shear connectors is not feasible as the section is very thin and incapable to be weld. Therefore, a suitable shear connection system of bolt and nut is proposed in this study by varying the size of the bolted shear connectors. This paper presents the prospect of using a bolt and nut as shear connector that could be well-suited with CFS section when integrated in Self-Compacting Concrete (SCC). The experimental test comprised of push-out and was conducted to determine the strength and ductility of the proposed bolted shear connectors as used in Composite Construction. Eight push-out test specimens of bolted shear connector size consist of M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results show that the bolted shear connectors used to possess good shear resistance capacity. Influence of varying the size of the bolted shear connectors was investigated. The results show that the size of bolted shear connectors influenced the ultimate strength capacity of the shear connectors significantly.

  • Impact of Shear Connector Spacing in Composite Construction Incorporating Cold-Formed Steel Channel Lipped Section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Anis Saggaff, Mahmood Md. Tahir, Mustapha Muhammad Lawan, Jahangir Mirza
    Abstract:

    Composite Construction with traditional Hot Rolled Steel (HRS) sections has been known to perform much better than with Cold-Formed Steel (CFS) sections for decades; as observed by extensive rules and requirements for their design as prescribed in current design codes. There is, however, limited technical information available about the use of Composite systems that incorporates the use of light gauge steel sections, despite the potentials of the system in residential and light industrial Constructions. However, the Composite action of CFS with an in-situ concrete, especially Self-Compacting Concrete (SCC) using bolted shear connector has not yet established. Therefore, this study attempted to investigate the behaviour of bolted shear connector used with SCC and CFS to form a Composite beam system at designated longitudinal spacing. Push-out and full-scale test specimens of longitudinal spacing of 250 mm and 300 mm with bolted shear connector of grade 8.8 installed with single nut and washer on the CFS flange and beneath it were fabricated, cast and tested till failure occurred. The experimental test results shows that the bolted shear connector possessed good ultimate strength and ultimate moment capacities with an increase in the longitudinal spacing of the bolted shear connector from 250 mm and to 300 mm respectively. It was therefore concluded that, longitudinal spacing between bolted shear connectors had significantly influenced the shear connector strength capacities.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Abstract of Emerging Trends in Scientific Research, 2015
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In traditional Composite Construction for Hot-rolled steel (HRS) section, the Composite action is usually achieved by the use of traditional headed stud shear connectors. However, for Cold-formed steel (CFS) section, the use of headed studs shear connectors is not practicable as the section is very thin and difficult to receive welding. Therefore, an appropriate shear connection mechanism of bolt and nut is proposed in this study. This paper presents the possibility of using a bolt and nut as shear connector that could be compatible with CFS section. The experimental tests results were conducted to ascertain the performance of the proposed bolted shear connectors. The aim of this paper was to investigate the structural performance of bolted shear connectors in providing Composite action between Self-compacting concrete (SCC) slab and CFS section integrated as Composite beam system. Nine push-out test specimens of bolted shear connector size M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results shows that the bolted shear connectors used possessed a good shear resistance capacity. Not much difference in strength capacity of specimens with M14 and M16 bolted shear connectors was found, perhaps due to buckling failure of the CFS section. Effect of varying the size of the bolted shear connectors was investigated. The results shows that the size of bolted shear connectors did influenced the ultimate strength capacity of the bolted shear connectors.

  • Impact of Shear Connector Spacing in Composite Construction Incorporating Cold-Formed Steel Channel Lipped Section
    2015
    Co-Authors: Anis Saggaff, Mahmood Md. Tahir, Mustapha Muhammad Lawan, Jahangir Mirza
    Abstract:

    Composite Construction with traditional Hot rolled steel (HRS) sections has been known to perform much better than with Cold-formed steel (CFS) sections for decades; as observed by extensive rules and requirements for their design as prescribed in current design codes. There is, however, few technical information available about the use of Composite systems that incorporates the use of light gauge steel sections, despite the potentials of the system in residential and light industrial Constructions. However, the Composite action of CFS with an in-situ concrete, especially Self-compacting concrete (SCC) using bolted shear connector ‘haven’t been investigated’. This study attempted to investigate the behaviour of bolted shear connector used with SCC and CFS as ‘shear connector’ to form a Composite beam system at designated longitudinal spacing. Push-out test specimens of shear connector longitudinal spacing of 150 mm, 250 mm and 300 mm with bolted shear connector of grade 8.8 were fabricated and tested till failure occurred. The experimental test result shows that the bolted shear connector possessed good ultimate strength capacity with an increase in the longitudinal spacing of the bolted shear connector from 150 mm to 250 mm and to 300 mm respectively. It was therefore concluded that, longitudinal spacing of the bolted shear connector definitely influenced the shear connector strength capacity.

Mustapha Muhammad Lawan - One of the best experts on this subject based on the ideXlab platform.

  • FEASIBILITY OF USING BOLTED SHEAR CONNECTOR WITH COLD-FORMED STEEL IN Composite Construction
    Jurnal Teknologi, 2016
    Co-Authors: Mustapha Muhammad Lawan, Mahmood Md. Tahir, Emad Hosseinpour
    Abstract:

    In conventional Composite Construction for hot-rolled steel (HRS) section, the Composite action is usually achieved by using headed studs shear connectors. But, for cold-formed steel (CFS) section, the use of headed studs is not feasible as the section is very thin and difficult to be weld.  Therefore, an innovative way of shear connection mechanism of using bolt and nut is suggested in this study. This paper presents the feasibility of using bolt as shear connector by presenting experimental test results so as to explore more on their capability to be used as shear connectors. The study investigated the structural capability of the proposed bolted shear connector when used in concrete known as Self-compacting concrete (SCC) integrated with CFS to provide the required Composite action. Push out test specimens with bolted shear connector of grade 8.8 at designated intervals longitudinally spaced were fabricated, cast and tested to failure. The results showed that the proposed shear connector was structurally capable and also an appreciable strength resistance was achieved.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In conventional Composite Construction for buildings and bridges, Hot-Rolled Steel (HRS) section is well known to be used. The Composite action is usually achieved by using conventional headed stud shear connectors. However, for Cold-Formed Steel (CFS) section, the use of headed stud shear connectors is not feasible as the section is very thin and incapable to be weld. Therefore, a suitable shear connection system of bolt and nut is proposed in this study by varying the size of the bolted shear connectors. This paper presents the prospect of using a bolt and nut as shear connector that could be well-suited with CFS section when integrated in Self-Compacting Concrete (SCC). The experimental test comprised of push-out and was conducted to determine the strength and ductility of the proposed bolted shear connectors as used in Composite Construction. Eight push-out test specimens of bolted shear connector size consist of M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results show that the bolted shear connectors used to possess good shear resistance capacity. Influence of varying the size of the bolted shear connectors was investigated. The results show that the size of bolted shear connectors influenced the ultimate strength capacity of the shear connectors significantly.

  • Impact of Shear Connector Spacing in Composite Construction Incorporating Cold-Formed Steel Channel Lipped Section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Anis Saggaff, Mahmood Md. Tahir, Mustapha Muhammad Lawan, Jahangir Mirza
    Abstract:

    Composite Construction with traditional Hot Rolled Steel (HRS) sections has been known to perform much better than with Cold-Formed Steel (CFS) sections for decades; as observed by extensive rules and requirements for their design as prescribed in current design codes. There is, however, limited technical information available about the use of Composite systems that incorporates the use of light gauge steel sections, despite the potentials of the system in residential and light industrial Constructions. However, the Composite action of CFS with an in-situ concrete, especially Self-Compacting Concrete (SCC) using bolted shear connector has not yet established. Therefore, this study attempted to investigate the behaviour of bolted shear connector used with SCC and CFS to form a Composite beam system at designated longitudinal spacing. Push-out and full-scale test specimens of longitudinal spacing of 250 mm and 300 mm with bolted shear connector of grade 8.8 installed with single nut and washer on the CFS flange and beneath it were fabricated, cast and tested till failure occurred. The experimental test results shows that the bolted shear connector possessed good ultimate strength and ultimate moment capacities with an increase in the longitudinal spacing of the bolted shear connector from 250 mm and to 300 mm respectively. It was therefore concluded that, longitudinal spacing between bolted shear connectors had significantly influenced the shear connector strength capacities.

  • Composite Construction OF COLD-FORMED STEEL (CFS) SECTION WITH HIGH STRENGTH BOLTED SHEAR CONNECTOR
    Jurnal Teknologi, 2015
    Co-Authors: Mustapha Muhammad Lawan, Mahmood Md. Tahir, Mohd Hanim Osman
    Abstract:

    Composite Construction is well known to be effectively used in the Construction of buildings and bridges using hot rolled steel (HRS) and headed studs connectors. The shear connectors provides the enhancement as established in current design codes. In this paper, the shear connection mechanism was proposed using high strength bolted shear connector to provide Composite action between concrete and the steel section. The conventional headed stud shear connector was eliminated since Cold-formed steel (CFS) was used and welding was not practically possible due to thinness nature of the CFS section. Therefore, in this study investigation was carried out on the strength capacity, ductility and the ultimate flexural capacity of the proposed high strength bolted shear connector and the Composite beam specimens respectively. Four push-out and two full-scale Composite beam specimens were fabricated using high strength M16 bolted shear connector of Grade 8.8 connected to the top flanges of the CFS I-section and tested to failure using push-out and four-point bending tests respectively. The results show that ultimate load and ultimate moment capacities of the proposed system were significantly improved by using the proposed connectors. The experimental results were compared with theoretical results based on the provision of Eurocode 4, and good agreement between the results was observed. In conclusion, compared results proved that the ultimate moment capacity of the proposed Composite beams can be estimated efficiently by using the constitutive laws as prescribed by Eurocodes and British standards.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Abstract of Emerging Trends in Scientific Research, 2015
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In traditional Composite Construction for Hot-rolled steel (HRS) section, the Composite action is usually achieved by the use of traditional headed stud shear connectors. However, for Cold-formed steel (CFS) section, the use of headed studs shear connectors is not practicable as the section is very thin and difficult to receive welding. Therefore, an appropriate shear connection mechanism of bolt and nut is proposed in this study. This paper presents the possibility of using a bolt and nut as shear connector that could be compatible with CFS section. The experimental tests results were conducted to ascertain the performance of the proposed bolted shear connectors. The aim of this paper was to investigate the structural performance of bolted shear connectors in providing Composite action between Self-compacting concrete (SCC) slab and CFS section integrated as Composite beam system. Nine push-out test specimens of bolted shear connector size M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results shows that the bolted shear connectors used possessed a good shear resistance capacity. Not much difference in strength capacity of specimens with M14 and M16 bolted shear connectors was found, perhaps due to buckling failure of the CFS section. Effect of varying the size of the bolted shear connectors was investigated. The results shows that the size of bolted shear connectors did influenced the ultimate strength capacity of the bolted shear connectors.

Anis Saggaff - One of the best experts on this subject based on the ideXlab platform.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In conventional Composite Construction for buildings and bridges, Hot-Rolled Steel (HRS) section is well known to be used. The Composite action is usually achieved by using conventional headed stud shear connectors. However, for Cold-Formed Steel (CFS) section, the use of headed stud shear connectors is not feasible as the section is very thin and incapable to be weld. Therefore, a suitable shear connection system of bolt and nut is proposed in this study by varying the size of the bolted shear connectors. This paper presents the prospect of using a bolt and nut as shear connector that could be well-suited with CFS section when integrated in Self-Compacting Concrete (SCC). The experimental test comprised of push-out and was conducted to determine the strength and ductility of the proposed bolted shear connectors as used in Composite Construction. Eight push-out test specimens of bolted shear connector size consist of M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results show that the bolted shear connectors used to possess good shear resistance capacity. Influence of varying the size of the bolted shear connectors was investigated. The results show that the size of bolted shear connectors influenced the ultimate strength capacity of the shear connectors significantly.

  • Impact of Shear Connector Spacing in Composite Construction Incorporating Cold-Formed Steel Channel Lipped Section
    Review of Industrial Engineering Letters, 2016
    Co-Authors: Anis Saggaff, Mahmood Md. Tahir, Mustapha Muhammad Lawan, Jahangir Mirza
    Abstract:

    Composite Construction with traditional Hot Rolled Steel (HRS) sections has been known to perform much better than with Cold-Formed Steel (CFS) sections for decades; as observed by extensive rules and requirements for their design as prescribed in current design codes. There is, however, limited technical information available about the use of Composite systems that incorporates the use of light gauge steel sections, despite the potentials of the system in residential and light industrial Constructions. However, the Composite action of CFS with an in-situ concrete, especially Self-Compacting Concrete (SCC) using bolted shear connector has not yet established. Therefore, this study attempted to investigate the behaviour of bolted shear connector used with SCC and CFS to form a Composite beam system at designated longitudinal spacing. Push-out and full-scale test specimens of longitudinal spacing of 250 mm and 300 mm with bolted shear connector of grade 8.8 installed with single nut and washer on the CFS flange and beneath it were fabricated, cast and tested till failure occurred. The experimental test results shows that the bolted shear connector possessed good ultimate strength and ultimate moment capacities with an increase in the longitudinal spacing of the bolted shear connector from 250 mm and to 300 mm respectively. It was therefore concluded that, longitudinal spacing between bolted shear connectors had significantly influenced the shear connector strength capacities.

  • influence of shear connector size on ultimate strength in Composite Construction with cold formed steel channel lipped section
    Abstract of Emerging Trends in Scientific Research, 2015
    Co-Authors: Mahmood Md. Tahir, Mustapha Muhammad Lawan, Anis Saggaff, Jahangir Mirza
    Abstract:

    In traditional Composite Construction for Hot-rolled steel (HRS) section, the Composite action is usually achieved by the use of traditional headed stud shear connectors. However, for Cold-formed steel (CFS) section, the use of headed studs shear connectors is not practicable as the section is very thin and difficult to receive welding. Therefore, an appropriate shear connection mechanism of bolt and nut is proposed in this study. This paper presents the possibility of using a bolt and nut as shear connector that could be compatible with CFS section. The experimental tests results were conducted to ascertain the performance of the proposed bolted shear connectors. The aim of this paper was to investigate the structural performance of bolted shear connectors in providing Composite action between Self-compacting concrete (SCC) slab and CFS section integrated as Composite beam system. Nine push-out test specimens of bolted shear connector size M12, M14 and M16 of grade 8.8 were fabricated and tested to failure. The experimental results shows that the bolted shear connectors used possessed a good shear resistance capacity. Not much difference in strength capacity of specimens with M14 and M16 bolted shear connectors was found, perhaps due to buckling failure of the CFS section. Effect of varying the size of the bolted shear connectors was investigated. The results shows that the size of bolted shear connectors did influenced the ultimate strength capacity of the bolted shear connectors.

  • Impact of Shear Connector Spacing in Composite Construction Incorporating Cold-Formed Steel Channel Lipped Section
    2015
    Co-Authors: Anis Saggaff, Mahmood Md. Tahir, Mustapha Muhammad Lawan, Jahangir Mirza
    Abstract:

    Composite Construction with traditional Hot rolled steel (HRS) sections has been known to perform much better than with Cold-formed steel (CFS) sections for decades; as observed by extensive rules and requirements for their design as prescribed in current design codes. There is, however, few technical information available about the use of Composite systems that incorporates the use of light gauge steel sections, despite the potentials of the system in residential and light industrial Constructions. However, the Composite action of CFS with an in-situ concrete, especially Self-compacting concrete (SCC) using bolted shear connector ‘haven’t been investigated’. This study attempted to investigate the behaviour of bolted shear connector used with SCC and CFS as ‘shear connector’ to form a Composite beam system at designated longitudinal spacing. Push-out test specimens of shear connector longitudinal spacing of 150 mm, 250 mm and 300 mm with bolted shear connector of grade 8.8 were fabricated and tested till failure occurred. The experimental test result shows that the bolted shear connector possessed good ultimate strength capacity with an increase in the longitudinal spacing of the bolted shear connector from 150 mm to 250 mm and to 300 mm respectively. It was therefore concluded that, longitudinal spacing of the bolted shear connector definitely influenced the shear connector strength capacity.