RESISTANCE OF SHEAR CONNECTORS IN COMPSOSITE FOAM CONCRETE USING C-CHANNEL EMBEDMENT
Dianzhong Liu 1* and Feng Fu2,1
1 School of Civil Engineering, Jilin Jianzhu University, No.5088 Xincheng Avenue, Jingyue Economic Development Zone, Changchun, Jilin, CN 130118, People's Republic of China
2 School of Mathematics, Computer Science & Engineering, Department of Civil Engineering, City, University of London, Northampton Square, London, EC1V 0HB, United Kingdom
An investigation is carried out on the shear connectors in foam concrete with cold-formed steel double C-Channels embedment. Two groups of tests with two different types of shear connectors have been tested in Jilin Jianzhu University. The two types of connectors are: flange connectors and web connectors are used. The experimental results show that they can effectively improve the longitudinal shear-resist capacity of the concrete. After the experiment, the specimens are dismantled for an interior observation. Based on the observation, the form of damage, the failure mechanism was discovered, and the equation of longitudinal shear capacity was developed. It is concluded that the failure involves independent slippage between two C-Channels and the shear connection fractures. Since the composite structure requires consideration of sufficient slip between the two materials, these types of shear connectors will have good enhancement for this type of composite structures subjected to dynamic loads.
Bond-slip; C-Channel; Cold-formed steel; Foam concrete; Shear connector