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(1 中國(guó)地震局地球物理研究所， 北京 100081；2 河北建筑工程學(xué)院土木工程學(xué)院， 張家口 075000；3 河北省土木工程診斷改造與抗災(zāi)重點(diǎn)實(shí)驗(yàn)室， 張家口 075000)

［摘要］通過(guò)對(duì)配置HRB600級(jí)鋼筋混凝土偏心受壓柱對(duì)稱配筋進(jìn)行研究，理論上計(jì)算了界限相對(duì)受壓區(qū)高度ξb，且因HRB600級(jí)鋼筋抗拉和抗壓強(qiáng)度設(shè)計(jì)值不相等，故以現(xiàn)有《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》（GB 50010—2010）為基礎(chǔ)，推導(dǎo)了對(duì)稱配筋大小偏心受壓的基本公式及偏心受壓類型的判別公式，并給出其相應(yīng)的截面設(shè)計(jì)計(jì)算方法。最后推導(dǎo)了HRB600級(jí)鋼筋對(duì)應(yīng)的N-M相關(guān)曲線計(jì)算公式，并比較分析了不同配筋率、不同強(qiáng)度等級(jí)鋼筋的NM相關(guān)曲線。研究結(jié)論可為后期《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》（GB 50010—2010）的修訂提供參考，也可為600MPa級(jí)熱軋帶肋鋼筋的推廣提供理論依據(jù)。 

［關(guān)鍵詞］HRB600級(jí)鋼筋；偏心受壓；對(duì)稱配筋；N-M相關(guān)曲線 

中圖分類號(hào)：TU318+.1 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)16-0116-05

Study on symmetric reinforcement calculation of rectangular section column with HRB600 reinforcing bars under eccentric compression 

ZHANG  Bo1,2,  QIU  Lijun2,3,  CHEN  Xueliang1,  ZHOU  Zhanxue2,3,  LIU  Bo2 

(1 Institute of Geophysics, China Earthquake Administration, Beijing 100081， China；2 School of Civil Engineering, Hebei University of Architecture,  Zhangjiakou 075000， China；3 Hebei Key Laboratory of Diagnosis, Reconstruction and Anti-disaster of Civil Engineering,  Zhangjiakou 075000， China) 

Abstract: By studying the symmetrical reinforcement of concrete column with HRB600 steel bars under eccentric compression, the depth of the limited relative compression zone ξb was calculated theoretically. And because the tensile and compressive strength design values of HRB600 steel bar are not equal, the basic formula of symmetrical reinforcement under large or small eccentric compression and the discriminant formula of eccentric compression types were derived and the corresponding section design calculation methods were given based on the existing code for design of concrete structures (GB 50010—2010). Finally, the N-M interaction curve formula of HRB600 steel bar was deduced, and the N-M interaction curves of different reinforcement ratio and different intensity level were compared and analyzed. The research conclusions can not only provide reference for the later revision of code for design of concrete structures (GB 50010—2010), but also provide a theoretical basis for the promotion of HRB600 steel bar. 

Keywords:HRB600 steel bar； eccentric compression； symmetric reinforcement； N-M interaction curve

*國(guó)家自然科學(xué)基金（51978633），國(guó)家重點(diǎn)研發(fā)計(jì)劃（2019YFC1509403），中國(guó)地震局地球物理研究所基本科研業(yè)務(wù)專項(xiàng)（DQJB21Z15），張家口市科技計(jì)劃項(xiàng)目（2021028D），河北省高校百名優(yōu)秀創(chuàng)新人才支持計(jì)劃資助（SL-RC2017033）。

 作者簡(jiǎn)介：張波，博士研究生，講師，Email:xiaobotd@126.com； 通信作者：邱利軍，碩士，講師，Email:qiuljun@126.com。