房屋建筑混凝土结构中HRB500级钢筋应用研究  

Research on Application of HRB500 Rebar in Concrete Structures Buildings

作　　者：马宏睿 崔明哲 储德文 张永青 时继瑞 姜宇鑫 张秦 MA Hongrui;CUI Mingzhe;CHU Dewen;ZHANG Yongqing;SHI Jirui;JIANG Yuxin;ZHANG Qin(China Academy of Building Research,Beijing 100013,China;CITIC Metal Co.,Ltd.,Beijing 100004,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]中信金属股份有限公司,100004

出　　处：《结构工程师》2023年第5期53-61,共9页Structural Engineers

摘　　要：HRB500高强钢筋屈服强度高,在建筑工程中合理应用可减少钢筋使用量、节约工程物资和人力投入、显著改善梁柱节点钢筋密集的情况,还可有效促进钢铁行业的节能减排。通过对现行结构设计规范中涉及HRB500钢筋的规定进行梳理,对HRB500在建筑结构中应用的优势条件和制约因素进行分析;选取8栋多高层钢筋混凝土结构建筑实际案例,保持构件截面和混凝土强度等级不变,采用结构设计软件,将原设计中HRB400钢筋替换为HRB500钢筋进行重新设计,研究采用HRB500在建筑工程中应用中对材料用量、工程造价以及节能减排等方面影响,得到HRB500钢筋在不同结构形式,不同部位的适用性结论,可为工程中HRB500高强钢筋的设计提供参考。HRB500 rebars with high yield strength and rational application in building structures can reduce the amount of reinforcement and,material and labor,and the reinforcement congestion at beam-column joints can be significantly improved.The optimized application of HRB500 can promote energy conservation and emission reduction in steel and iron industry.In this paper,the provisions of HRB500 rebar in current structural design codes are summarized,and the advantages and limitations of HRB500 in building structures are analyzed.Eight actual cases of multi-story or high-rise concrete buildings are selected and redesigned using structural design software with HRB500 rebars,with member sections and concrete strength grades unchanged.The influence of HRB500 on material consumption,project cost,energy conservation and emission reduction in the application of HRB500 in construction projects is studied,and the applicability conclusion of HRB500 reinforcement in different structural types and parts is obtained,which can provide reference for HRB500 high-strength reinforcement in structural design.

关 键 词：HRB500钢筋 经济性分析 钢筋混凝土结构 节能减排 

分 类 号：TU375[建筑科学—结构工程]