- 摘 要
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（1 上海市政工程設(shè)計研究總院（集團）有限公司， 上海 200092；2 同濟大學(xué)土木工程學(xué)院， 上海 200092； 3 上海杉達學(xué)院， 上海 201209）
［摘要］總結(jié)歐洲規(guī)范EN 1994-1-1、加拿大規(guī)范CSA-S16-09和國內(nèi)規(guī)范《部分包覆鋼-混凝土組合結(jié)構(gòu)技術(shù)規(guī)程》（T/CECS 719—2020）中部分包覆鋼-混凝土組合柱（PEC柱）以及《組合結(jié)構(gòu)設(shè)計規(guī)范》（JGJ 138—2016）和《矩形鋼管混凝土結(jié)構(gòu)技術(shù)規(guī)程》（CECS 159∶2004）中組合柱的單向壓彎承載力計算方法，將五種方法得到的軸力-彎矩（N-M）相關(guān)曲線計算結(jié)果與已有試驗數(shù)據(jù)進行比較。結(jié)果表明：規(guī)范EN 1994-1-1曲線是各種試驗點的下包線，規(guī)范EN 1994-1-1和《組合結(jié)構(gòu)設(shè)計規(guī)范》（JGJ 138—2016）曲線均具有外凸特性；《部分包覆鋼混凝土組合結(jié)構(gòu)技術(shù)規(guī)程》（T/CECS 719—2020）曲線與規(guī)范CSA-S16-09曲線較為接近，且均偏保守；《矩形鋼管混凝土結(jié)構(gòu)技術(shù)規(guī)程》（CECS 159∶2004）曲線為外凸折線，與試驗值吻合較好。
［關(guān)鍵詞］部分包覆鋼-混凝土組合柱；單向壓彎承載力；軸力-彎矩相關(guān)曲線；計算方法比較
中圖分類號：TU398+.9文獻標(biāo)識碼：A文章編號：1002-848X(2021)07-0007-07
Comparison on calculation methods of compression and uniaxial bending bearing capacity of partially-encased composite steel and concrete columns
WANG Hai1, LI Jie2, CHEN Yiyi2,3
(1 Shanghai Municipal Engineering Design Institute (Group) Co., Ltd., Shanghai 200092, China; 2 College of Civil Engineering, Tongji University, Shanghai 200092, China; 3 Sanda University, Shanghai 201209, China)
Abstract:The compression and uniaxial bending capacity calculation method of partially-encased composite steel and concrete (PEC) columns in European standard EN 1994-1-1, Canadian standard CSA-S16-09 and domestic standard Technical specification for partially-encased composite structures of steel and concrete（T/CECS 719—2020）and composite columns in Code for design of composite structures (JGJ 138—2016) and Technical specification for structures with concrete-filled rectangular steel tube members(CECS 159∶2004) were summarized. The calculation results of the axial force-bending moment (N-M) correlation curve obtained by the five methods were compared with the existing experimental data.The results show that: the curve of the standard EN 1994-1-1 is the under-envelope line of various test points, and both the curves of the standard EN 1994-1-1 and the Code for design of composite structures (JGJ 138—2016) have convex characteristics. The curve of Technical specification for partially-encased composite structures of steel and concrete (T/CECS 719—2020) is relatively close to the curve of standard CSA-S16-09, and both are conservative. The curve of Technical specification for structures with concrete-filled rectangular steel tube members(CECS 159∶2004) is an outward convex broken line, which is in good agreement with the experimental value.
Keywords:partially-encased composite steel and concrete column;compression and uniaxial bending capacity;axial force-bending moment interaction curve;design method comparison
*科技部重點研發(fā)計劃項目（2016YFC0701603）。
作者簡介：王海，碩士，工程師，Email：haiw0508@126.com；通信作者：李杰，博士，副教授，Email：lj@#edu.cn。
