Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams
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Strain Hardening Cementitious Composite (SHCC) is an innovative type of fibre-reinforced cement-based composite that has superior tensile properties. Because of this, it holds the potential to enhance the shear capacity of reinforced concrete (RC) beams, if applied properly. This paper presents the general and distinctive properties of SHCC as well as a literature review of topics related to the contribution of SHCC layers to the shear resistance of RC beams with and without shear reinforcement. Based on the analysed results, it is concluded that the main characteristics of SHCC are its microcracking behaviour, high ductility, and increased tensile strength (between 2 and 8 MPa) at large deformations. When used in structural elements, SHCC develops multiple parallel cracks compared to concentrated cracks in conventionally reinforced concrete. The biggest disadvantage of SHCC is its significant drying shrinkage. Although showing high variability, using SHCC as laminates with a thickness... of 10 mm improves the shear capacity of hybrid RC beams, but debonding of interfaces in a hybrid system occurs in some cases.
Кључне речи:
strain hardening cementitious composite / hybrid beam / ductility / crack / shrinkageИзвор:
Building Materials and Structures, 2023, 66, 3, 145-155Издавач:
- Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)
- Univerzitet u Beogradu, Građevinski fakultet
- Društvo građevinskih konstruktera Srbije
Институција/група
GraFarTY - JOUR AU - Luković, Mladena AU - Budnik, Bartosz AU - Dragaš, Jelena AU - Carević, Vedran AU - Ignjatović, Ivan PY - 2023 UR - https://grafar.grf.bg.ac.rs/handle/123456789/3230 AB - Strain Hardening Cementitious Composite (SHCC) is an innovative type of fibre-reinforced cement-based composite that has superior tensile properties. Because of this, it holds the potential to enhance the shear capacity of reinforced concrete (RC) beams, if applied properly. This paper presents the general and distinctive properties of SHCC as well as a literature review of topics related to the contribution of SHCC layers to the shear resistance of RC beams with and without shear reinforcement. Based on the analysed results, it is concluded that the main characteristics of SHCC are its microcracking behaviour, high ductility, and increased tensile strength (between 2 and 8 MPa) at large deformations. When used in structural elements, SHCC develops multiple parallel cracks compared to concentrated cracks in conventionally reinforced concrete. The biggest disadvantage of SHCC is its significant drying shrinkage. Although showing high variability, using SHCC as laminates with a thickness of 10 mm improves the shear capacity of hybrid RC beams, but debonding of interfaces in a hybrid system occurs in some cases. PB - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK) PB - Univerzitet u Beogradu, Građevinski fakultet PB - Društvo građevinskih konstruktera Srbije T2 - Building Materials and Structures T1 - Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams EP - 155 IS - 3 SP - 145 VL - 66 DO - 10.5937/GRMK2300006L ER -
@article{ author = "Luković, Mladena and Budnik, Bartosz and Dragaš, Jelena and Carević, Vedran and Ignjatović, Ivan", year = "2023", abstract = "Strain Hardening Cementitious Composite (SHCC) is an innovative type of fibre-reinforced cement-based composite that has superior tensile properties. Because of this, it holds the potential to enhance the shear capacity of reinforced concrete (RC) beams, if applied properly. This paper presents the general and distinctive properties of SHCC as well as a literature review of topics related to the contribution of SHCC layers to the shear resistance of RC beams with and without shear reinforcement. Based on the analysed results, it is concluded that the main characteristics of SHCC are its microcracking behaviour, high ductility, and increased tensile strength (between 2 and 8 MPa) at large deformations. When used in structural elements, SHCC develops multiple parallel cracks compared to concentrated cracks in conventionally reinforced concrete. The biggest disadvantage of SHCC is its significant drying shrinkage. Although showing high variability, using SHCC as laminates with a thickness of 10 mm improves the shear capacity of hybrid RC beams, but debonding of interfaces in a hybrid system occurs in some cases.", publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK), Univerzitet u Beogradu, Građevinski fakultet, Društvo građevinskih konstruktera Srbije", journal = "Building Materials and Structures", title = "Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams", pages = "155-145", number = "3", volume = "66", doi = "10.5937/GRMK2300006L" }
Luković, M., Budnik, B., Dragaš, J., Carević, V.,& Ignjatović, I.. (2023). Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams. in Building Materials and Structures Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije (DIMK)., 66(3), 145-155. https://doi.org/10.5937/GRMK2300006L
Luković M, Budnik B, Dragaš J, Carević V, Ignjatović I. Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams. in Building Materials and Structures. 2023;66(3):145-155. doi:10.5937/GRMK2300006L .
Luković, Mladena, Budnik, Bartosz, Dragaš, Jelena, Carević, Vedran, Ignjatović, Ivan, "Contribution of strain-hardening cementitious composites (SHCC) to shear resistance in hybrid reinforced concrete beams" in Building Materials and Structures, 66, no. 3 (2023):145-155, https://doi.org/10.5937/GRMK2300006L . .