防风板开裂弯矩计算及试验研究

Calculation of cracking moment of wind-proof plate and test study

为了确定防风板静载试验的加载方案,需根据防风板截面特性计算开裂弯矩。本文立足已有开裂弯矩计算方法及计算理论,通过分析防风板的受力特点,根据恰当的应力计算图式,推导了防风板的开裂弯矩计算公式。试验值与计算值对比结果表明,用本文公式计算的开裂弯矩具有可靠的精确度,现场试验的应用效果良好。

The property of the cross section influences the cracking moment of the wind-shield plate, which further determines the loading scheme of the static loading test. The paper started the research with the help of the existing calculation method and computational theory, and with a reference to the force bearing features of the plate and relevant schematic diagram of calculation, a formula for the calculation of cracking moment was eventually concluded. A comparison of the experimental values and calculation values indicates that the formula arrived is of high accuracy and its in-situ application produced effective result.