Simulation method of step-by-step construction of long-span steel structures

被引：2

作者：

Pan D.-Z. ^{[1
]}

Wei D.-M. ^{[2
]}

机构：

[1] School of Civil and Transportation Engineering, South China University of Technology, Guangzhou 510640, Guangdong

[2] State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, Guangdong

来源：

Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2010年 / 38卷 / 09期

关键词：

Birth-death element method; Boundary rotation angle; Construction simulation; Individual solving; Long-span steel structure; Step-by-step construction;

D O I：

10.3969/j.issn.1000-565X.2010.09.023

中图分类号：

学科分类号：

摘要：

One of the difficulties in mechanical analysis of construction process is the time variable of structure geometry and boundary conditions. In this investigation, first, based on the engineering practice that a pre-angle can be set between pre-erected and after-erected substructures via an inter-node design, a new construction simulation method is proposed. In this method, live and dead substructures are solved sequentially, and the rotational constraint on boundary nodes of dead substructures can be adjusted. Then, for the system with statically-determined or super-determined dead substructures, two methods to adjust the boundary rotational condition are presented, and the finite element formulas of live and dead substructures are respectively derived. Finally, the proposed method is used to analyze and simulate some typical cases. The results indicate that, by using the proposed method, the after-erected substructures deform more slightly and can be facilitated more easily. As a result, the final geometry is closer to the design shape.

引用

页码：123 / 126+137

共 6 条

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[3]

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