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在民用、海洋和空间结构工程中采用剪切板是一种常见的做法,目前正在对带薄钢板剪力墙的剪切板的应用进行相关研究。一般剪切板的性能和设计程序大部分由其产生预屈服屈曲的情况而决定。然而,由于腐蚀、疲劳、焊接或操作不当而导致的裂纹缺陷,可能会使得剪切板产生承载力退化的情况,从而增加其分析的复杂性。基于有限元方法,对包含中央或边缘裂缝的剪切板提出建模和分析的方法,结果可达到分析裂纹尖端和边缘周围所必需的网格精度。此外,还分析了相对裂纹长度对屈曲承载能力的影响。
It is common practice to use shear panels in civil, marine and space structural engineering and is currently undergoing research into the application of shear plates with sheet steel shear walls. The performance and design procedures of a typical shear plate are largely determined by the conditions under which the buckling occurs pre-buckling. However, crack defects due to corrosion, fatigue, welding, or improper handling may degrade the capacity of the shear plate and increase the complexity of its analysis. Based on the finite element method, a method of modeling and analyzing shear plates with a central or edge crack is presented, with the result that the mesh accuracy necessary to analyze the crack tip and edge can be reached. In addition, the influence of the relative crack length on the buckling capacity is also analyzed.