北京理工大学学报
北京理工大學學報
북경리공대학학보
JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY
2009年
6期
475-478
,共4页
型钢混凝土(SRC)%界面滑移%弹性理论%能量法
型鋼混凝土(SRC)%界麵滑移%彈性理論%能量法
형강혼응토(SRC)%계면활이%탄성이론%능량법
steel reinforced concrete(SRC)%interface slips%elastic theory%energy method
根据国内外有关型钢混凝土黏结滑移的试验研究资料,建立型钢混凝土工字钢柱的拉拔力学模型,引入能量法求解了型钢混凝土界面的相对滑移. 将型钢混凝土工字钢柱截面分为3部分,利用最小势能原理建立沿锚固长度方向的型钢与混凝土界面的相对滑移计算公式,并进行了数值计算与分析. 研究结果表明,构件中型钢与混凝土界面的相对滑移具有二次曲线分布的基本特征,与相关试验结论一致.
根據國內外有關型鋼混凝土黏結滑移的試驗研究資料,建立型鋼混凝土工字鋼柱的拉拔力學模型,引入能量法求解瞭型鋼混凝土界麵的相對滑移. 將型鋼混凝土工字鋼柱截麵分為3部分,利用最小勢能原理建立沿錨固長度方嚮的型鋼與混凝土界麵的相對滑移計算公式,併進行瞭數值計算與分析. 研究結果錶明,構件中型鋼與混凝土界麵的相對滑移具有二次麯線分佈的基本特徵,與相關試驗結論一緻.
근거국내외유관형강혼응토점결활이적시험연구자료,건립형강혼응토공자강주적랍발역학모형,인입능량법구해료형강혼응토계면적상대활이. 장형강혼응토공자강주절면분위3부분,이용최소세능원리건립연묘고장도방향적형강여혼응토계면적상대활이계산공식,병진행료수치계산여분석. 연구결과표명,구건중형강여혼응토계면적상대활이구유이차곡선분포적기본특정,여상관시험결론일치.
According to experimental materials on bond-slip behaviors of steel reinforced concrete, the mechanics model of a pull-out steel I-columns built up and the slip displacement between steel and concrete of a steel I-column subjected to pull-out load is studied by the energy method. The cross section of steel I-column is divided into three parts. Slip displacement formulation along the embedment length is derived by the principle of minimum potential energy. Calculation results showed that the slip curves have the basic characteristic of quadratic curves distribution. The results can be used to describe the interface slips between steel and concrete under complicated loads, and besides to study the bond-slip constitutive relationship between steel and concrete.
