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随着国家产业政策的推进、行业科技进步、企业生产技术能力的提高,HRB500高强热轧带肋钢筋已经进入正规化生产阶段,同时HRB500高强热轧带肋钢筋已纳入国家标准GB 50010-2010《混凝土结构设计规范》和GB 1499.2-2007《钢筋混凝土用钢第2部分:热轧带肋钢筋》.新版GB 50010-2010的正式实施,为HRB500高强热轧带肋钢筋在建筑工程中推广应用提供了标准支持.目前国家规范大力推广400、500 MPa级高强热轧带肋钢筋作为纵向受力的主导钢筋,限制并准备逐步淘汰335MPa级热轧带肋钢筋的应用,用300MPa级光圆钢筋取代235MPa级光圆钢筋.分析了高强钢筋(400、500MPa)在电厂工程设计中应用的重要意义,介绍高强钢筋的设计、施工要点,对高强钢筋工程应用的经济和社会效益进行阐述,并指出高强钢筋在电厂工程设计应用中面临的问题.
With the advancement of national industrial policies, technological progress in the industry and the improvement of production technology, HRB500 high-strength hot-rolled ribbed bars have entered the formalized production stage. At the same time HRB500 high-strength hot-rolled ribbed bars have been incorporated into the national standard GB 50010-2010 “ Concrete Structure Design Code ”and GB 1499.2-2007“ Reinforced concrete steel Part 2: Hot-rolled ribbed steel. ”The new version of the official implementation of GB 50010-2010 HRB500 high-strength hot-rolled ribbed steel in the construction of the project to promote the use of The current national standard to vigorously promote the 400,500 MPa high-strength hot-rolled ribbed steel as the main force of the vertical load to limit and prepare to phase out the application of 335MPa-class hot-rolled ribbed bar with 300MPa-class semi-circular bar instead of steel 235MPa grade round bar.Analysis of the importance of high strength steel (400,500MPa) in power plant engineering design, introducing the design and construction essentials of high strength steel, and the economic and social benefits of high strength steel bar engineering application.It also points out that high strength Reinforcing steel in power plant engineering design and application problems.