木结构. 试验方法. 楼板振动性能

[中文适用范围]： 本国际标准规定了用于实验室或现场测量 timber floors 的固有频率、阻尼比和集中载荷下的静态挠曲度的测试程序。这些参数与人类对木材地板振动响应的感受密切相关，该响应由正常使用情况下的人员激励引起。本测试程序旨在量化上述部分或所有参数，以评估测试地板的振动性能。然而，将测量到的参数用于评估振动性能则超出了本国际标准的范围。模态测试和分析在确定结构（如 floor）的固有频率、阻尼比和其他动态特性方面应用了一系列国际标准。为测量自然频率和阻尼比等动态参数，本国际标准建议使用模态测试。假定测试人员具备执行此类测试所需的设备和基本知识。关于模态测试和分析理论已有大量文献记载（参见参考文献 [4]）。 [外文原描述]： ISO 18324:2016 specifies test procedures to measure natural frequencies, modal damping ratios and static deflection under a concentrated load of laboratory or field timber floors. These parameters have been found to correlate well with human perception to timber floor vibration response caused by human-induced excitation under normal use. It is intended that the test procedures can be applied in lieu of calculation to quantify some or all of the above parameters that are used to evaluate the vibrational serviceability of the test floor. The subsequent use of the measured parameters to evaluate vibrational serviceability is, however, outside the scope of this International Standard. ISO published a series of International Standards on the application of modal testing and analysis to determine natural frequencies, modal damping ratios, and other dynamic properties of a structure. For the measurement of dynamic parameters such as natural frequencies and modal damping ratios, modal testing is proposed in this International Standard. It is assumed that the test operators possess the required equipment and fundamental knowledge to perform such a test. The theory of modal testing and analysis has been well documented in Reference [4].