魏興娜,李江華,徐 曉,郝文秀
魏興娜,李江華,徐曉,等.矩形螺旋箍筋混凝土短柱力學性能試驗研究[J].混凝土與水泥制品,2021(6):70-75.
WEI X N,LI J H,XU X,et al.Experimental Study on Mechanical Properties of Concrete Short Columns with Rectangular Spiral Stirrups[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):70-75.
矩形螺旋箍筋混凝土短柱力學性能試驗研究
魏興娜,李江華,徐 曉,郝文秀
魏興娜,李江華,徐曉,等.矩形螺旋箍筋混凝土短柱力學性能試驗研究[J].混凝土與水泥制品,2021(6):70-75.
WEI X N,LI J H,XU X,et al.Experimental Study on Mechanical Properties of Concrete Short Columns with Rectangular Spiral Stirrups[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(6):70-75.
摘 要:設計制作了5根配置矩形螺旋箍筋的混凝土短柱和3根配置普通箍筋的混凝土短柱,研究了混凝土強度、箍筋間距對構件極限承載力、力學性能的影響,在試驗的基礎上,利用ANSYS有限元軟件對混凝土短柱進行了靜力非線性分析。結果表明:與普通箍筋混凝土短柱相比,矩形螺旋箍筋混凝土短柱的極限承載力和抗變形能力有所提高;箍筋間距越小,其對混凝土短柱的約束效果越好;混凝土強度等級越高,構件的極限承載力越大;有限元分析結果與試驗結果基本一致。
Abstract: Five concrete short columns with rectangular spiral stirrups and three concrete short columns with ordinary stirrups were designed, and the effects of concrete strength and stirrup spacing on the ultimate bearing capacity and mechanical properties of concrete short columns were studied. Based on the test, the static nonlinear analysis of concrete short columns was carried out by using ANSYS finite element software. The results show that compared with concrete short columns with ordinary stirrups, the ultimate bearing capacity and anti deformation capacity of concrete short columns with rectangular spiral stirrups are improved. The smaller the stirrup spacing, the better the restraint effect. The higher the concrete strength grade, the greater the ultimate bearing capacity. The analysis results are basically consistent with the test results.
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