用更精确的模型对格塔进行建模和分析

IF 1.7 3区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Advanced Steel Construction Pub Date : 2007-01-01 DOI:10.18057/ijasc.2007.3.2.3

W. Kang, F. Al-Bermani, S. Kitipornchai, H. Lam

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引用次数: 0

摘要

在传统设计中，杆塔在计算构件轴力时均假定为桁架结构，通常忽略二次支撑。然而，这种假设并不能准确反映输电塔的结构特点。本文提出了一种考虑构件连续性、构件截面不对称特性、连接偏心以及几何非线性和材料非线性的有限元模型。首先用实验结果验证了所提出的有限元方法，然后将其应用于几个格塔的分析，以探讨其一些实际问题。根据分析结果对输电塔系统的设计提出了建议，并在结论中给出了建议。

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Modeling and analysis of lattice towers with more accurate models

In traditional design, transmission towers are assumed to be trusses in the calculation of member axial forces, and secondary braces are usually neglected. However, this assumption does not accurately reflect the structural characteristics of transmission towers. This paper proposes a finite element model (FEM) in which member continuity, the asymmetrical sectional properties of members, the eccentricity of connections, and geometrical and material nonlinearities are considered. The proposed FEM is first verified using experimental results, and is then employed in the analysis of several lattice towers to investigate some of their practical aspects. Recommendations on the design of transmission tower systems are made according to the results of the analysis and given in the conclusion.

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来源期刊

Advanced Steel Construction CONSTRUCTION & BUILDING TECHNOLOGY-ENGINEERING, CIVIL

CiteScore

2.60

自引率

29.40%

发文量

审稿时长

6 months

期刊介绍： The International Journal of Advanced Steel Construction provides a platform for the publication and rapid dissemination of original and up-to-date research and technological developments in steel construction, design and analysis. Scope of research papers published in this journal includes but is not limited to theoretical and experimental research on elements, assemblages, systems, material, design philosophy and codification, standards, fabrication, projects of innovative nature and computer techniques. The journal is specifically tailored to channel the exchange of technological know-how between researchers and practitioners. Contributions from all aspects related to the recent developments of advanced steel construction are welcome.