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目前,已有许多关于不同边界条件钢板在各种荷载下的试验研究。经典的类型是钢板纵向边缘受约束(加劲)或不受约束(不加劲)。但是现有文献没有关于钢板纵向边缘部分约束(部分加劲)的试验报告。对30块三边简支、单纵边加劲的钢板进行试验分析。试件的边缘加劲从零加劲(自由边)到刚性加劲变化,在此中间状态的边缘加劲就是部分加劲钢板。部分加劲钢板的性能由一套三维照相测量系统进行记录,并讨论了多大尺寸的边缘加劲肋才能提供足够刚性的约束。试验中的边缘加劲板的类型有简单边缘板、简单倾斜边缘板和复杂边缘板。根据数值研究得到关于部分加劲板强度计算的设计准则是准确可靠的,并且证明现有的国际冷轧钢结构规范所采用的一般强度方法有效。
At present, there are many experimental studies on steel with different boundary conditions under various loads. The classic type is that the longitudinal edges of the plate are restrained (stiffen) or unconstrained (not stiffened). However, there is no experimental report on restraint (partial stiffening) of the longitudinal edge of the steel plate in the existing literature. 30 pieces of three sides simply supported, single longitudinal stiffened steel plate for test analysis. The edge of the specimen is stiffened from zero stiffener (free edge) to rigid stiffener, where the stiffened edge of the intermediate state is partially stiffened. The performance of some stiffened plates was recorded by a three-dimensional photogrammetry system and discussed how much the size of the edge stiffeners was to provide a sufficiently rigid constraint. The types of edge stiffeners in the experiment are simple edge plates, simple inclined edge plates and complex edge plates. According to the numerical study, the design criteria for the calculation of the strength of some stiffeners are accurate and reliable, and the general strength method adopted in the existing international cold-rolled steel structure code is proved to be effective.