Flexural Strength of Composite Deck Slab with Macro Synthetic Fiber Reinforced Concrete

Applied Sciences

Moon-Seok Lee¹  Chang-Sik Choi¹  Dong-Hee Son¹  Baek-Il Bae²  Moon-Sung Lee³ 

[1] Department of Architectural Engineering, Hanyang University, Seoul 04763, Korea;Department of Digital Architectural and Urban Engineering, Hanyang Cyber University, Seoul 04763, Korea;Division of Architecture and Architectural Engineering, Hanyang University, ERICA Campus, Ansan 15588, Korea;

关键词: macro-synthetic fiber;    steel deck;    flexural performance;    flexural strength;    deflection;   

DOI  :  10.3390/app11041662

来源: DOAJ

【 摘 要 】

In this research, flexural performance was evaluated using macro-synthetic fiber-reinforced concrete (MFRC) in structural deck plates. Material tests were performed to evaluate the mechanical properties of the MFRC, and the flexural strength evaluation was conducted in two experiments, positive and negative moment tests. In the material test results, compressive strength and modulus of elasticity of the MFRC were increased compared with normal concrete. Flexural tensile tests showed that, after achieving maximum strength, the deck plates had sufficient residual strength until fracture. Structural tests showed that flexural strength and cracking load of all specimens increased according to macro synthetic fiber dosage. According to the experimental results, we proposed a flexural strength model of a steel deck plate containing macro synthetic fiber. The model showed greater accuracy than the current standard compared with the experimental results. In addition, since it was confirmed that the MFRC steel decks had greater flexural stiffness until yielding, it will be necessary to quantitatively evaluate the effect of MFRC on the effective flexural stiffness of steel decking in future studies.

【 授权许可】

Unknown