Bridge Piers with Structural Fuses and Bi-Steel Columns. II: Analytical Investigation
Bridge Piers with Structural Fuses and Bi-Steel Columns. II: Analytical Investigation
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DOI：
10.1061/(asce)be.1943-5592.0000236
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发表时间：
2012
影响因子：
3.6
通讯作者：
S. El-Bahey;M. Bruneau
中科院分区：
文献类型：
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作者：
S. El-Bahey;M. Bruneau
本文介绍了一个分析调查的结果进行复制实验获得的行为，并更好地了解行为的建议结构保险丝概念的桥梁，是在配套文件。首先，钢板剪力连接（SPSL）提出了一种新型的结构保险丝。方程推导出定义其剪-矩相互作用方程，以确定其关键的设计参数，并量化的链接的延性，抗侧刚度和强度。强度和刚度方程的开发使用自由体图（FBD）的测试系统作为一个方便简单的设计工具。使用有限元软件包ABAQUS/explicit开发了有限元模型（FEM），以验证所提出的SPSL概念，然后复制从实验中获得的全部结果。分析和实验结果之间的比较进行突出的行为之间的差异，所有测试标本。简单的数值方程正确地表示引信系统的预期强度和刚度。此外，从ABAQUS模型中获得的结果准确地捕捉到了系统的全局行为，并提供了有价值的洞察个人保险丝的行为。
This paper presents the results of an analytical investigation conducted to replicate experimentally obtained behavior, and better understand the behavior of the proposed structural fuse concept for bridges that is presented in a companion paper. First, a steel plate shear link (SPSL) proposed as a new type of structural fuse is described. Equations are derived to define its shear-moment interaction equation, to determine some of its critical design parameters, and to quantify the link ductility, lateral stiffness and strength. Strengths and stiffnesses equations are developed using free-body diagrams (FBDs) for the tested systems as a convenient simple design tool. Finite-element models (FEM) are developed by using the finite-element software package ABAQUS/explicit to validate the proposed SPSL concept, and then to replicate the full range of results obtained from the experiments. Comparisons between the analytical and experimental results are conducted to highlight the differences in behavior among all tested specimens. The simple numerical equations correctly represent the expected strengths and stiffnesses of the fuse systems. Further, the results obtained from the ABAQUS model accurately captured the global behavior of the system, and provided valuable insight into individual fuse behavior.