Tehnički vjesnik, Vol. 25 No. 5, 2018.
Prethodno priopćenje
https://doi.org/10.17559/TV-20180626222438
Nonlinear FEM Analysis on Composite Beams with Web Opening Under Negative Bending Moment
Wenyuan Liao
orcid.org/0000-0001-6297-0406
; College of Civil Engineering, Southwest Forestry University, 300 Bailongsi, Kunming, Yunnan 650224, China
Longqi Li
; Construction Engineering College, Xuchang University, 88 Bayi Rd., Xuchang, Henan Province, 461000, China
Dewen Liu
; College of Civil Engineering, Southwest Forestry University, 300 Bailongsi, Kunming, Yunnan 650224, China
Bihui Dai
; College of Civil Engineering, Southwest Forestry University, 300 Bailongsi, Kunming, Yunnan 650224, China
Chenxing Wang
; College of Civil Engineering, Southwest Forestry University, 300 Bailongsi, Kunming, Yunnan 650224, China
Sažetak
In order to investigate the shear behaviour and main factors of steel-concrete composite beam with web opening under negative moment, simply supported composite beam under concentrated load was analysis through finite element method. The finite element software ANSYS is used to calculate and analyse nonlinearly ten specimens. The main changing parameters are thickness, reinforcement ratio of slab and size of opening. The analysis indicates that stiffness and ultimate capacity will reduce greatly after web opening under negative bending moment. Through increasing the thickness of concrete slab, its bearing capacity can be enhanced markedly, and increasing the reinforcement ratio of concrete slab can improve its deformability effectively. Concrete slab makes a great contribution to shear capacity of web opening composite beam under negative moment. With the increase of the height or width of opening, the shear force that concrete slab undertakes will increase relatively.
Ključne riječi
composite beam; finite element analysis; negative moment; shear bearing capacity; web opening
Hrčak ID:
207459
URI
Datum izdavanja:
28.10.2018.
Posjeta: 1.354 *