地震测试标准的理解

夸父追日

如何理解这段话啊？是在一个双向台子上做实验呢 还是在一个台子上做实验 然后翻转试件呢？

9.3.2 Biaxial testing
For each series of tests, the two time-histories are applied simultaneously along two of the preferred testing axes of the specimen. If the time-histories are not independent, each test is repeated with a relative phase angle of 0° first and then 180°.
NOTE When biaxial testing is specified, testing may be carried out in a single inclined axis installation but the movements along the two axes will always be dependent. The test response spectrum for each axis should be adjusted to envelop the required response spectrum in that axis.

hcharlie

我理解是将试验波形倒置180度.

夸父追日

回复 2 # hcharlie 的帖子

谢谢啊 下面一段呢