規(guī)范修訂對鋼筋混凝土結(jié)構(gòu)高層建筑用鋼量的影響分析
李靜斌，周玉成
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（鄭州大學土木工程學院, 鄭州 450001）
［摘要］為分析2010版系列結(jié)構(gòu)設(shè)計規(guī)范的修訂對高層建筑混凝土結(jié)構(gòu)用鋼量變化帶來的影響，選取3類具有代表性的高層建筑結(jié)構(gòu)為研究對象，采用PKPM軟件，分別按照2002版和2010版系列結(jié)構(gòu)設(shè)計規(guī)范的規(guī)定和要求，進行了框架結(jié)構(gòu)、框架-剪力墻結(jié)構(gòu)、剪力墻結(jié)構(gòu)的計算分析和截面設(shè)計。根據(jù)設(shè)計結(jié)果統(tǒng)計了各類結(jié)構(gòu)主要構(gòu)件的用鋼量，對比分析了結(jié)構(gòu)按照新老規(guī)范設(shè)計在單位用鋼量方面的差異。分析結(jié)果表明：按新規(guī)范設(shè)計，框架結(jié)構(gòu)和框架-剪力墻結(jié)構(gòu)的總用鋼量約減少12%～13%，板單位用鋼量約減少18%～25%，經(jīng)濟性得到明顯提升；剪力墻結(jié)構(gòu)的總用鋼量新老規(guī)范基本持平，其中墻、梁用鋼量約增加5%～6%，板用鋼量約減少21%，新規(guī)范的設(shè)計規(guī)定更加安全合理。［關(guān)鍵詞］高層建筑; 鋼筋混凝土結(jié)構(gòu); 規(guī)范; 用鋼量中圖分類號：TU375 文獻標識碼：A 文章編號：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
作者簡介：李靜斌，博士，副教授，Email: lijingbin@zzu.edu.cn。
