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redwithrespecttotheeffectoncurvesofmoment-curvatureandmo-ment-thrustinteractiondiagrams. Apartofthetheoreticalvalueswascomparedwithexperimentalresults. Agoodagreementwasshowninthecurvesofmoment-curvature. Thetheoreticalcalculationpresentsthatconcrete-filledFRPtubescansignificantlyimprovetheultimatecapabilityofmembers. Inaddition. becauseoftheconfiningofFRPjack, werenotonlystrengthbutalsoductilityenhanced. Therelationshipofmoment-curvaturehastwo-linearbehavior. ThefirstslopedependsonthestiffnessofconcreteandthesecondslopeonFRPjack. Itisevidentthattheratioofaxialforcetocompressivecapacityhasnoeffectoncurvesofmoment-curvatureiftheratioofdiametertothicknessofFRPjackislow. Contrarily, astheratioofaxialforcetocompressivecapacityincreases, themomentandultimatecurvatureimprovegreatlyiftheratioofdiametertothicknessofFRPjackishigh. Increasingtheratioofreinforcementhaseffectonthecurveofmoment-curvature. Astheanglewithrespecttolongitudinalaxisdecrea-ses, thesecondslopeandultimatemomentincreasegreatly. Keywords: concrete-filledFRPtube; bend; axialcompression; eccentriccompression; ductility; curveofmoment-curvature; moment-thrustinteractiondiagram \The book edited by the Xiang-Bao researchers, the organization of domestic experts with practical experience of more than three-year well-written in. Manual includes a polymer matrix composite material characterization and testing techniques, performance data, material and design analysis, using several parts, details are given fiber, resin, prepreg and laminate characterization of a variety of methods and related experimental techniques to collect a summary of 140 composite system at home and abroad the latest performance data,[link widoczny dla zalogowanych], providing the basic elements of design and analysis techniques and building block approach, the use of security, reliability, design and environmental management, new content and knowledge than to reflect the results of recent research, technology, ideas and progress. Manual system of comprehensive,[link widoczny dla zalogowanych], standardized data representation, structure, reasonable arrangement,[link widoczny dla zalogowanych], and strive to have the advanced technology and engineering practicality, materials for composite materials research, engineering and manufacturing, design application and other military and civilian departments for reference use,[link widoczny dla zalogowanych], but also as institutions of higher learning teachers and students teaching and research related to professional use. (Shao-Jie Chen) FRP/CM2OO5. No. l

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