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（中國(guó)建筑股份有限公司技術(shù)中心，北京　101320）

［摘要］《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》（GB 50010—2010）以損傷本構(gòu)的形式給出了素混凝土單軸本構(gòu)模型。通過(guò)用戶材料子程序（UMAT）將規(guī)范混凝土單軸本構(gòu)模型在ABAQUS中進(jìn)行二次開(kāi)發(fā)，將其骨架曲線與經(jīng)典的Mander模型和過(guò)-張模型做比較，并研究其損傷發(fā)展規(guī)律。規(guī)范沒(méi)有給出完整的滯回規(guī)則，如受拉卸載時(shí)的滯回規(guī)則及受壓加載后卸載到受拉時(shí)的滯回規(guī)則。基于損傷理論對(duì)規(guī)范本構(gòu)模型做了補(bǔ)充，使之包含所有的加載路徑。

［關(guān)鍵詞］混凝土結(jié)構(gòu); 設(shè)計(jì)規(guī)范; 單軸本構(gòu)模型;  ABAQUS; 用戶材料子程序

中圖分類號(hào)：TU313      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)11-0094-03

Study on uniaxial constitutive model of concrete in Code for design of concrete structures and development in ABAQUS

Qi Hu, Li Yungui, Chen Xiaoming, Duan Jin, Sun Jianyun

 (China State Construction Technical Center, Beijing 101320, China)

Abstract: A damage uniaxial constitutive model of plain concrete is given in Code for design of concrete structures（GB 50010—2010）. The model was developed in ABAQUS via user-defined material mechanical behavior (UMAT) (user material). The compression skeleton curve of the model in the code was studied and compared with Mander model and Guo-Zhang model. The damage development of the model in the code was studied. The complete cycle curve is not deduced from the model in the code, such as the unloading hysteretic curve after tension loading and the tension hysteretic curve after compression unloading. Based on damage theory, the constitutive model in the code was supplemented to include all the loading path.

Keywords: concrete structure; design code; uniaxial constitutive model; ABAQUS; UMAT

作者簡(jiǎn)介：齊虎，博士，工程師，Email：qihu_810@163.com。

參考文獻(xiàn)

［1］齊虎, 孫景江. 結(jié)構(gòu)三維非線性分析軟件OPENSEES的研究及應(yīng)用［D］. 哈爾濱: 中國(guó)地震局工程力學(xué)研究所, 2008.

［2］GB 50010—2010 混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范［S］. 北京:中國(guó)建筑工業(yè)出版社, 2011.

［3］齊虎, 李云貴, 呂西林. 箍筋約束混凝土的單軸力學(xué)性能研究［J］. 建筑結(jié)構(gòu), 2011, 41(1): 79-82.

［4］齊虎，李云貴，呂西林. 箍筋約束混凝土單軸滯回本構(gòu)實(shí)用模型［J］. 工程力學(xué), 2009, 28(9): 95-102.

［5］MANDER J B, PRIESTLY M J N, PARK R. Theoretical stress-strain model for confined concrete ［J］. Journal of Structural Engineering, ASCE, 1988, 114(8): 1804-1826.

［6］過(guò)鎮(zhèn)海, 時(shí)旭東. 鋼筋混凝土原理和分析［M］. 北京: 清華大學(xué)出版社, 2003.

［7］張秀琴，過(guò)鎮(zhèn)海，王傳志.反復(fù)荷載下箍筋約束混凝土的應(yīng)力應(yīng)變?nèi)€方程［J］.工業(yè)建筑,1985(12): 16-20.