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首页> 外文会议>Structural Stability Research Council 2002 Annual Stability Conference; Apr 24-27, 2002; Seattle, Washington >ADVANCED ANALYSIS OF FRAME STEEL STRUCTURES: TOWARDS APPLICATION AS A CURRENT DESIGN TOOL
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ADVANCED ANALYSIS OF FRAME STEEL STRUCTURES: TOWARDS APPLICATION AS A CURRENT DESIGN TOOL

机译：框架钢结构的高级分析：作为一种当前设计工具的应用

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This paper is addressed to the examination of current application of nonlinear analysis, regarding two-dimensional steel-framed structures, following the main guidelines of the "Advanced Analysis Concept". The subject is discussed according to the Brazilian context, taking into account the fact that the national code for steel building design and erection (NBR-8800, 1986) is now under revision. An inelastic 2D beam-column element has been implemented for the analyzes of framed structures. The element stiffness formulation is based on the stability functions approach. A set of tangent modulus originated from the EUROCODE-3 buckling curves is presented. A computer program was developed and it can be used to predict accurately the inelastic behavior up to the collapse mode of frame structures. The inclusion of refined elastic-plastic analysis and semi-rigid connections for steel frame design is outlined and it is taken as a new step for Brazilian structural researchers and designers. Results coming from a portal frame structure are presented and commented. The obtained results take into account the new trends of the Brazilian code, in the light of the specifications of the AISC-LRFD and EUROCODE-3.
机译：本文针对“二维分析钢框架结构”非线性分析当前的应用，遵循“高级分析概念”的主要原则。考虑到巴西钢结构设计和安装的国家法规（NBR-8800，1986），目前正在修订这一主题，因此根据巴西的情况进行了讨论。非弹性二维梁柱单元已经实现用于框架结构的分析。单元刚度公式基于稳定性函数方法。提出了一组源自EUROCODE-3屈曲曲线的切线模量。开发了一个计算机程序，它可以用来准确预测直至框架结构塌陷模式的非弹性行为。概述了精巧的弹塑性分析和用于钢框架设计的半刚性连接，这是巴西结构研究人员和设计师迈出的新一步。呈现并评论了来自门户框架结构的结果。根据AISC-LRFD和EUROCODE-3的规范，获得的结果考虑了巴西法规的新趋势。

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