The flexural behavior of cold-formed steel composite beams

2020 ◽  
Vol 218 ◽  
pp. 110819
Author(s):  
Yu Shi ◽  
Kaidi Yang ◽  
Yu Guan ◽  
Xinmei Yao ◽  
Lei Xu ◽  
...  
2010 ◽  
Vol 113-116 ◽  
pp. 989-993 ◽  
Author(s):  
Huang Ying Shen ◽  
Yu Shun Li ◽  
Zhen Wen Zhang ◽  
Tian Yuan Jiang ◽  
Jun Zhe Liu

The objective of this research was to develop a new composite material/system in structural civil engineering. To use of mechanical properties of bamboo-based panel and cold-formed steel, this study composite two kind of materials above-mentioned together utilizing structural adhesives. The research developed various of bamboo/steel composite members, such as composite slabs, composite walls, composite beams and composite columns. And the paper emphasized mechanical performance of bamboo/steel composite slabs and composite beams. Experimental studies on flexural behavior of 6 composite slabs and 9 composite beams were carried out and the failure process, failure modes and failure mechanism were investigated. Experiment results indicates that the bamboo plywood and cold-formed steel can form an excellent composite cross-section; Load vs. mid-span deflection curves of composite slabs and composite beams show linear on serviceability limit state. The maximum ultimate strength of composite slabs and beams have reached 30.0 kN•m and 36.13 kN•m respectively. The study shows that bamboo-steel composite members have good prospects in building structures of China.


2013 ◽  
Vol 14 (2) ◽  
pp. 105-120 ◽  
Author(s):  
T. Valsa Ipe ◽  
H. Sharada Bai ◽  
K. Manjula Vani ◽  
Merchant Mohd Zafar Iqbal

2019 ◽  
Vol 29 (3) ◽  
pp. 228-240 ◽  
Author(s):  
Sangeetha Palanivelu

Abstract Steel-concrete composite structures are widely used in the current construction of bridges and multi-storey buildings. The effect of shear connectors in a cold-formed steel-composite beam was studied under flexure. The number of channel connectors in the specimen was varied and the same was compared with a specimen without shear connectors. The performance and failure of cold-formed steel-composite beams were then studied. The presence of shear connectors in the tension zone prevents the formation of cracks which are the major cause of failure in a beam subjected to bending. The load-carrying capacity is greater in a composite beam and an increase in the number of channel connectors from one to five increases the load-carrying capacity by 60 % as compared to a specimen without a connector. A composite beam with five connectors is more ductile, with a ductility factor of 14. The Composite beams were also analysed using the finite element software ANSYS and were found to have good agreement with the experimental results.


2014 ◽  
Vol 80 ◽  
pp. 207-216 ◽  
Author(s):  
Yunita Idris ◽  
Togay Ozbakkaloglu

2019 ◽  
Vol 12 (3) ◽  
pp. 509-517
Author(s):  
O. P. AGUIAR ◽  
R. B. CALDAS ◽  
F. C. RODRIGUES ◽  
H. N .BELLEI

Abstract In search of an improved compatibility between cold-formed steel profiles and precast floor systems, this study proposes an alternative shear connector for cold-formed steel-concrete composite beams. This connector consists of a steel plate with holes placed longitudinally in the middle of the upper flange of the steel profile, aiming to maximize the support area for precast slabs during the assembly. The proposed solution was experimentally tested on I-beams under bending, composed by two cold-formed steel channels, connected to a reinforced concrete slab by the shear connector. The relative slip between the steel profile and concrete, vertical deflection of the beam, and strains at several locations of the composite section were measured. The results show that the proposed connector assures shear transfer at the interface of the composite section components and shows strength of the same magnitude as other commonly used connectors.


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