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Study On Reinforced Crumb Rubber Concrete Simple Beam And The Frame's Earthquake-resistant

Posted on:2008-12-17Degree:MasterType:Thesis
Country:ChinaCandidate:C F LiFull Text:PDF
GTID:2132360245992988Subject:Structural engineering
Abstract/Summary:PDF Full Text Request
Crumb Rubber Concrete (CRC) which is also called Elastic Concrete, is a kind of environmental material. CRC shows a characteristic of being high in ductility, energy absorption and larger compressive failure strain. In comparison to controlled concrete, CRC exhibits a higher value of strain energy. There have been lots of convictive projects in the field of road building.On the assumption of making it to building structure, the CRC should put up perfect ductility. With the same cross-section area and the same ratio of reinforcement, will the limit of bearing capacity be smaller. Which aspects will show better ductility?Based on a series of material experiments and some existing document results, through ANSYS (analysis software), this paper makes a full analysis and comparison of two groups of reinforced beams made up by different kind of concrete. The concretes be used have the same compressive strength. One group is made up of controlled concrete, and the other is made up of CRC. The two beams of each group have different cross-section and the same ratio of reinforcement.This paper concludes the limit bending bearing capacity, deflection ductility factor and cross-section curvature ductility, the length of plastic hinge and so on. From all of these, this paper concludes that reinforced beams made up of Crumb Rubber Concrete have better ductility.At last, the paper has a contrast of two frames through the method of the code for seismic design of building provided. One frame is made up of controlled concrete; the other is made up of two kinds of concrete. The cross beams are CRC and the columns are controlled concrete still. The result is that the frame with CRC beams has better ductility.
Keywords/Search Tags:Crumb Rubber Concrete (CRC), finite element, ductility, plastic hinge, cross-section curvature, frame construction
PDF Full Text Request
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