大跨度吊篮桁架结构有限元分析

摘要

吊篮在施工过程中运用广泛,但对于吊篮的理论研究,特别是对于特殊情况下大跨度吊篮理论研究较为缺乏.本文对某桥梁大跨施工吊篮桁架结构采用Midas/Civil进行有限元分析和设计,通过理论计算,结果得出该吊篮结构强度与刚度符合要求.为了检验有限元分析的理论计算,采取理论计算方法与之对比,结论显示,两者基本相符合.结论可为吊篮施工与设计计算提供参考.%Basket was widely used in the construction process． However, the theoretical research on basket is relatively deficiency. especially long-span basket theory under the special condition. This paper used Midas/Civil to conduct Finite Flement Analysis and Design on long-span basket truss structure. Through calculating, the results indicated that the basket structure strength and stiffness meets the requirement. In order to check the finite element analysis of theoretical calculation, we adopted the theoretical calculation method to compare with it. and the result shows that the two of them is basically in accordance wiLh each other. The conclusion could provide the reference for basket construction and design calculation.