第34卷第2期陇东学院学报Vol.34No.22023年3月JournalofLongdongUniversityMar.2023文章编号:1674-1730(2023)02-0088-06收稿日期:2022-01-05作者简介:刘珍(1985—),女,回族,安徽亳州人,助教,主要从事建筑工程研究。高层钢混结构建筑的抗震设计与性能研究刘珍(亳州职业技术学院,安徽亳州236800)摘要:为了提升高层钢混结构建筑的抗震性能,研究了加载方向、轴压比和约束方式对钢筋混凝土结构破坏形貌、滞回曲线、骨架曲线和累积耗能的影响。结果表明,随着轴压比增加,混凝土试件的峰值承载力增大,但是其强度退化加快;增加了铁板网和碳纤维布约束试件的滞回曲线更加饱满,峰值荷载后的强度降低较缓,耗能能力明显增强;斜向加载作用下,碳纤维布约束试件的抗震性能最好,其次为铁板网约束试件,且都高于局部约束试件,这主要是因为铁板网和碳纤维布可以对钢筋混凝土柱起到很好的约束作用,在斜向加载过程中可以增强抵抗地震的能力,而局部约束试件并未对钢筋混凝土试件的抗震性能起到明显提升作用,可考虑采用刚度大的材料来对钢筋混凝土进行约束。关键词:钢筋混凝土;加载方向;轴压比;约束方式;抗震性能中图分类号:TU375文献标识码:AStudyonSeismicDesignandPerformanceofHigh-RiseSteel-ConcreteStructureBuildingsLIUZhen(BozhouInstituteofVocationalTechnology,Bozhou236800,Anhui)Abstract:InordertoimprovetheseismicperformanceofHigh-RiseSteel-Concretestructurebuildings,theeffectsofloadingdirection,axialcompressionratioandrestraintmodeonthefailuremorphology,hystereticcurve,skele-toncurveandcumulativeenergyconsumptionofreinforcedconcretestructuresarestudied.Theresultsshowthatwiththeincreaseofaxialcompressionratio,thepeakbearingcapacityofconcretespecimensincreases,butthestrengthdegradationaccelerates;thehystereticcurvesofthespecimensrestrainedbyironplatemeshandcarbonfi-berclotharefuller,thestrengthdecreasesslowlyafterpeakload,andtheenergydissipationcapacityisobviouslyenhanced.Underobliqueloading,theseismicperformanceofcarbonfiberclothrestrainedspecimensisthebest,followedbyironplatemeshrestrainedspecimens,whicharehigherthanlocalrestrainedspecimens.Thisisbecauseironplatemeshandcarbonfiberclothcanplayagoodrestrainingroleonreinforcedconcretec...