摘要
桁架结构以其独有的优点得到广泛的应用.通过ANSYS软件对大型空旷钢结构进行模拟,分析其力学特性,并进行相应的优化.根据结果分析,原有模型位移偏大,轴向应力已经超过材料的屈服应力,最大弯矩位置不合理.经过优化以后,位移、轴向应力和弯矩减幅较大,应力分布也更为合理,从而改善刚性构件的受力性能,使结构在荷载作用下跨中扰度得以减小,发挥了钢索抗拉强度高和拱形结构抗压性能良好的特点.
Truss structure has been widely used for its unique advantages. This paper simulates large -scale hollowness steel by ANSYS software, analyzes its mechanical properties, and optimize its structure. According to the analysis of the results, the original model displacement is too large, the axial stress exceeds the yield stress of the material, the maximum moment position is unreasonable. After optimation, axial stress and bending moments larger decreases ,stress distribution is more reasonable, so as to improve the performance of the force of the rigid member, reduce the cross deflection under load, show the high tensile strength of cable and the perfect compression performance of arch structure.
出处
《菏泽学院学报》
2013年第2期40-43,共4页
Journal of Heze University
基金
国家自然科学基金重点资助项目(50834004)
国家大学生科研训练计划项目(201210290011)
关键词
桁架结构
钢结构
ANSYS模型
力学分析
优化
truss structure
steel structure
ANSYS model
mechanical analysis
optimation
