规范修订对钢筋混凝土结构高层建筑用钢量的影响分析
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（郑州大学土木工程学院, 郑州 450001）
［摘要］为分析2010版系列结构设计规范的修订对高层建筑混凝土结构用钢量变化带来的影响，选取3类具有代表性的高层建筑结构为研究对象，采用PKPM软件，分别按照2002版和2010版系列结构设计规范的规定和要求，进行了框架结构、框架-剪力墙结构、剪力墙结构的计算分析和截面设计。根据设计结果统计了各类结构主要构件的用钢量，对比分析了结构按照新老规范设计在单位用钢量方面的差异。分析结果表明：按新规范设计，框架结构和框架-剪力墙结构的总用钢量约减少12%～13%，板单位用钢量约减少18%～25%，经济性得到明显提升；剪力墙结构的总用钢量新老规范基本持平，其中墙、梁用钢量约增加5%～6%，板用钢量约减少21%，新规范的设计规定更加安全合理。［关键词］高层建筑; 钢筋混凝土结构; 规范; 用钢量中图分类号：TU375 文献标识码：A 文章编号：1002-848X(2016)03-0076-05
Influence analysis of the design codes revision on steel amounts of high-rise building of reinforced concrete structuresLi Jingbin, Zhou Yucheng(School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)Abstract:To analyze the impact of the revised 2010 edition series of structural design codes on steel amounts of high-rise reinforced concrete structures, three kinds of typical high-rise buildings were selected as the research objects. Using PKPM software, calculation analyses and section designs were carried out on frame structure, frame-shear wall structure and shear wall structure according to the provisions and requirements of 2002 edition and 2010 edition series of structural design codes. The steel amounts of the main components of each structure were counted based on the design results and the difference in the steel amounts of the same structure calculated according to different editions of design codes was compared. The results show that according to the new codes, the reduction of total steel amounts of frame structure and frame-shear wall structure are about 12% to 13%, and the reduction in floor steel amounts of the unit are about 18% to 25%, the efficiency improves significantly. The total steel amounts of shear wall structure are basically unchanged, in which the steel amounts of walls and beams increase about 5% to 6%, and the steel amounts of floor decrease about 21%. The design provisions in new codes are more safe and reasonable.Keywords:high-rise building; reinforced concrete structure; code; steel amount
作者简介：李静斌，博士，副教授，Email: lijingbin@zzu.edu.cn。
