不銹鋼筋混凝土梁受彎性能試驗研究
打開文本圖片集
ZHAO Jing'，LI Haiyun2，LIU Zhijian3，GUAN Zhongzheng2，WANG Weixin3 （1.Guangzhou Metro Design & Research Institute Co.，Ltd.，Guangzhou 510OOO， China；
2. School of Civil Engineering， Shijiazhuang Tiedao University， Shijiazhuang O5o043，China；
3. China Railway 14th Bureau Group Corporation Limited， Ji'nan ， China）
Abstract：Conductingbending performance testsonstainlessstelreinforcedconcrete（HSS-RC）beamsand stainlessteel reinforced Ultra-High Performance Concrete（HSS-UHPC）beams has yieldedtheflexural behaviorof HSS-UHPC beams. Theresultsdemonstrate thatwhen stainlesstelbarsareusedinconjunction with UHPC，there isasignificant enhancement in bothload-bearingcapacityandcrackresistance.Thereiforcementratioandcross-sectionalarea arepositivelycorrelated with thespecimen’sload-bearingcapacity，whiletheyare negativelycorelatedwithcrack width.Theassumptionofaflatcross sectionremains valid forboth HSS-RCand HSS-UHPC beams.The formulas forcalculatingthe bending capacityand crack widthof rdinaryreinforcedconcreteinthe"Codefor DesignofConcrete Structures"GB5Ol0-2O10arestillapplicabletoHRC beams.Byconsidering the tensile properties of UHPC inthe tensile zone，formulas forcalculating the bendingcapacityand crack width of HSS-UHPC beamshave ben proposed.This studyprovidesanexperimental basisandtheoretical foundationforthe design and engineering application of stainless steel reinforced concrete beams.
sywords：stainless stelreinforcingbars；ultra-highperformanceconcrete；reinforcementratio；bendingcapacity；crackwidth
0 引言
鋼筋混凝土結(jié)構(gòu)綜合了鋼筋和混凝土的優(yōu)點，造價低，取材方便，是土木工程結(jié)構(gòu)中最常用的形式之一。（剩余6278字）