| UHPFRC (ultra-high-performance fiber-reinforced concrete) ' s performance including strength, durability and toughness etc., has been advanced enormously comparing with HPC(High Performance Concrete). Structural design theory and application style of UHPFRC have become an important orientation of global structural-engineering research. Super high performance of UHPFRC may make existing composite slab lighter and thinner. The author researches the flexural performance of UHPFRC-RC composite slab.The author studies the flexural performance of the prefabricated bottom slab of UHPFRC by means of numerical analysis and structural experiment. Their results confirm mutually,which proves the feasibility of the numerical model of the bottom slab of UHPFRC. The author also analyses the flexural performance of reinforced UHPFRC-RC composite slab by means of theoretical derivation and numerical analysis. Their results confirm mutually, which proves the feasibility of computing theory and numerical model of flexural UHPFRC-RC composite slab. By means of numerical analysis, the author manifests that UHPFRC-RC composite slab can bear typical load in each construction phase. Its peculiarity lies in that its bottom slab is anti-crack to a large extent. |
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