Tačna i približne metode proračuna spregnutih greda od čelika i betona
EXACT AND APPROXIMATE METHODS OF ANALYSIS OF STEEL-CONCRETE COMPOSITE BEAMS
Апстракт
The paper presents four different methods for viscoelastic analysis of steel-concrete composite structures: “exact” analysis method, simplified method, effective modulus method and method proposed by the European design code, Eurocode 4. The exact analysis method uses the mathematical theory of linear integral operators for presenting viscoelastic relations of the steel-concrete composite structures. The simplified analysis method is derived from the exact method. It adopts the assumption that generalized displacements change linearly with the concrete creep function. Due to this assumption, the problem equations transforms from nonhomogeneous integral equations to nonhomogeneous algebraic equations. The effective modulus method and the method proposed by the Eurocode 4 are algebraic methods where stress-strain relations for concrete are expressed through the effective modulus, which depend on time. On the numerical example of continuous steel-concrete beam, the results obtained using ...the mentioned approximate and the exact method are compared
Кључне речи:
steel-concrete composite structures / viscoelastic analysis / concrete creep function / linear integral operatorsИзвор:
Teorija građevinskih konstrukcija, 2019, 113-120Издавач:
- Univerzitet u Beogradu–Građevinski fakultet
- Univerzitet Crne Gore–Građevinski fakultet
- Akademija inženjerskih nauka Srbije
Финансирање / пројекти:
- Истраживање утицаја вибрација од саобраћаја на зграде и људе у циљу одрживог развоја градова (RS-MESTD-Technological Development (TD or TR)-36046)
Институција/група
GraFarTY - CHAP AU - Kostić, Svetlana M. AU - Deretić-Stojanović, Biljana PY - 2019 UR - https://grafar.grf.bg.ac.rs/handle/123456789/2127 AB - The paper presents four different methods for viscoelastic analysis of steel-concrete composite structures: “exact” analysis method, simplified method, effective modulus method and method proposed by the European design code, Eurocode 4. The exact analysis method uses the mathematical theory of linear integral operators for presenting viscoelastic relations of the steel-concrete composite structures. The simplified analysis method is derived from the exact method. It adopts the assumption that generalized displacements change linearly with the concrete creep function. Due to this assumption, the problem equations transforms from nonhomogeneous integral equations to nonhomogeneous algebraic equations. The effective modulus method and the method proposed by the Eurocode 4 are algebraic methods where stress-strain relations for concrete are expressed through the effective modulus, which depend on time. On the numerical example of continuous steel-concrete beam, the results obtained using the mentioned approximate and the exact method are compared PB - Univerzitet u Beogradu–Građevinski fakultet PB - Univerzitet Crne Gore–Građevinski fakultet PB - Akademija inženjerskih nauka Srbije T2 - Teorija građevinskih konstrukcija T1 - Tačna i približne metode proračuna spregnutih greda od čelika i betona T1 - EXACT AND APPROXIMATE METHODS OF ANALYSIS OF STEEL-CONCRETE COMPOSITE BEAMS EP - 120 SP - 113 UR - https://hdl.handle.net/21.15107/rcub_grafar_2127 ER -
@inbook{ author = "Kostić, Svetlana M. and Deretić-Stojanović, Biljana", year = "2019", abstract = "The paper presents four different methods for viscoelastic analysis of steel-concrete composite structures: “exact” analysis method, simplified method, effective modulus method and method proposed by the European design code, Eurocode 4. The exact analysis method uses the mathematical theory of linear integral operators for presenting viscoelastic relations of the steel-concrete composite structures. The simplified analysis method is derived from the exact method. It adopts the assumption that generalized displacements change linearly with the concrete creep function. Due to this assumption, the problem equations transforms from nonhomogeneous integral equations to nonhomogeneous algebraic equations. The effective modulus method and the method proposed by the Eurocode 4 are algebraic methods where stress-strain relations for concrete are expressed through the effective modulus, which depend on time. On the numerical example of continuous steel-concrete beam, the results obtained using the mentioned approximate and the exact method are compared", publisher = "Univerzitet u Beogradu–Građevinski fakultet, Univerzitet Crne Gore–Građevinski fakultet, Akademija inženjerskih nauka Srbije", journal = "Teorija građevinskih konstrukcija", booktitle = "Tačna i približne metode proračuna spregnutih greda od čelika i betona, EXACT AND APPROXIMATE METHODS OF ANALYSIS OF STEEL-CONCRETE COMPOSITE BEAMS", pages = "120-113", url = "https://hdl.handle.net/21.15107/rcub_grafar_2127" }
Kostić, S. M.,& Deretić-Stojanović, B.. (2019). Tačna i približne metode proračuna spregnutih greda od čelika i betona. in Teorija građevinskih konstrukcija Univerzitet u Beogradu–Građevinski fakultet., 113-120. https://hdl.handle.net/21.15107/rcub_grafar_2127
Kostić SM, Deretić-Stojanović B. Tačna i približne metode proračuna spregnutih greda od čelika i betona. in Teorija građevinskih konstrukcija. 2019;:113-120. https://hdl.handle.net/21.15107/rcub_grafar_2127 .
Kostić, Svetlana M., Deretić-Stojanović, Biljana, "Tačna i približne metode proračuna spregnutih greda od čelika i betona" in Teorija građevinskih konstrukcija (2019):113-120, https://hdl.handle.net/21.15107/rcub_grafar_2127 .