Abstract This paper presents the results of shear tests on light steel walls with two types of higher specification OSB/3 board and comparison with elastic theory based on the fixing shear stiffness. The tests were performed to BS EN 594 and showed that the design shear resistance was determined as 5.1 kN/m wall length for a limiting deflection of 0.003H or 4.3 kN/m for a limiting deflection of H/500, where H is the wall height. With plasterboard on the opposite face, the shear stiffness increased by 29%, but these results were more variable. For a single test on a wall with the OSB/3 board on one side and X bracing on the opposite face, the design shear resistance is 5.6 kN/m for a limiting deflection of H/500. For a flame retardant form of OSB/3 board, the stiffness was 21% higher than for the first series of OSB/3 tests. An elastic theory is presented to determine the limiting shear force as a function of the shear stiffness of the fixings between the boards and the C sections, which was provided from small-scale push tests. The results are compared with finite element models and a comparison with the test configurations is presented.

中文翻译：

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护板轻钢框架中的隔板作用

摘要 本文介绍了两种高规格OSB/3板轻钢墙体剪切试验的结果，并与基于固定剪切刚度的弹性理论进行了比较。根据 BS EN 594 进行的测试表明，设计抗剪强度确定为 5.1 kN/m 壁长，极限挠度为 0.003H 或 4.3 kN/m，极限挠度为 H/500，其中 H 是壁高度。在相反面上使用石膏板时，剪切刚度增加了 29%，但这些结果变化更大。对于一侧为 OSB/3 板和在相反面上 X 支撑的墙壁上的单次测试，设计抗剪强度为 5.6 kN/m，极限挠度为 H/500。对于阻燃形式的 OSB/3 板，刚度比第一组 OSB/3 测试高 21%。提出了一种弹性理论来确定作为板和 C 型截面之间固定件的剪切刚度的函数的极限剪切力，这是从小规模推动试验中提供的。结果与有限元模型进行了比较，并与测试配置进行了比较。