许 飞1,2,汤玉娟1,2,王 楠1
许飞,汤玉娟,王楠.预制再生混凝土箱涵力学性能模拟研究[J].混凝土与水泥制品,2023(4):44-47.
XU F,TANG Y J,WANG N.Numerical Simulation Study on the Mechanical Properties of Precast Recycled Concrete Box Culverts[J].China Concrete and Cement Products,2023(4):44-47.
预制再生混凝土箱涵力学性能模拟研究
许 飞1,2,汤玉娟1,2,王 楠1
许飞,汤玉娟,王楠.预制再生混凝土箱涵力学性能模拟研究[J].混凝土与水泥制品,2023(4):44-47.
XU F,TANG Y J,WANG N.Numerical Simulation Study on the Mechanical Properties of Precast Recycled Concrete Box Culverts[J].China Concrete and Cement Products,2023(4):44-47.
摘 要:在合理选择单元类型和材料本构模型基础上,通过建立预制再生混凝土箱涵有限元模型,研究了其力学性能,并分析了再生粗骨料取代率对模型荷载-位移曲线的影响。结果表明:预制再生混凝土箱涵的破坏方式与普通混凝土箱涵基本相似;再生粗骨料取代率对管节的荷载-位移曲线的影响明显;随着再生粗骨料掺量的提高,箱涵的极限承载力随之降低,且承载能力快速下降。
Abstract: The mechanical properties of small precast recycled concrete box culverts was studied by built a finite element model based on the reasonable element types and material constitutive model, and the influence of the replacement rate of recycled coarse aggregate on the load-displacement curves was analyzed. The results show that the damage mode of precast recycled concrete box culverts is basically similar to that of the ordinary concrete box culverts. The replacement rate of recycled coarse aggregate has an obvious influence on the load-displacement curves of the concrete box culverts. As the recycled aggregate content increasing, the ultimate bearing capacity of the box culverts reducesy. The bearing capacity decreases faster after crossing the limit point.
版权所有:中国混凝土与水泥制品网 苏ICP备10086386号 网站建设:中企动力 苏州