Study On Flexural Behavior Of Glazed Hollow Bead Insulation Concrete Beams

Building energy consumption, as one of three major energy consumers inChina, has received more and more attention to the issue. Thermal InsulationGlazed Hollow Bead Concrete could obviously increase thermal insulationperformance, in the case of loss bearing capacity, in order to achieve realisticself-thermal insulation structure.The occurrence of this new green materialcould effectively reduce building energy consumption. Besides, it also hasadvantages of light deadweight, same lifetime with structure, good durabilityand notable economic benefit. Therefore, this material is a kind ofnew green building material that could be adapted to the current energy crisisand has a large market demand.The conclusion of this study provides referencefor the design and application of thermal insulation glazed hollow beadconcrete flexural members.The major duties in this article include:1.This article, based on the mix ratio of Thermal Insulation GlazedHollow Bead Concrete and several researches on Mechanical Performance,conducts a dead load bends experiment for thermal insulation concrete beammixed with vitrified microsphere lightweight aggregate. The reduced variablesinclude concrete material, depth of section and longitudinal reinforcement ratio. Through experiments, it analyses the influence of mixing Thermal InsulationGlazed Hollow Bead Concrete on beams under flexure regarding the aspects offailure mechanism, failure model, Mechanical properties, Steel and concretestrain variation, ductility, stiffness degradation and plastic energy dissipationcapability. These finding suggest that Thermal Insulation Glazed Hollow BeadConcrete could enhance ductile deformation and energy consumptioncapability and reduce the rate of degradation of strength and stiffness. The newmaterial shows better Mechanical Performance than common concrete duringthe experiment.2.Nonlinear simulation analysis of experimental beam is applied by usingABAQUS finite element software. Compared simulated result withexperimental results, the failure situation of specimen under finite elementsimulation is in accordance with experimental results, which shows load anddeflection perfectly anastomose.3.According to the ordinary concrete calculation theory and the formulaof bearing capacity, deduced the glazed hollow bead insulation concrete beambearing capacity calculation formula, and check in the stiffness, the deflectionand the maximum crack width. The measured values and the calculated valuesare basically consistent, and to ensure the safety.