Questions regarding the calculation of lateral wind vibration in tall, oscillating towers
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Example 3 on page P114, Question 1: How is the 9.7 value obtained? Question 2: In the specifications, the denominator of the G value is labeled, and the numerator always represents the first mode of vibration; yet the example problems calculate it in this way directly. What is the reason for this?
This post was last edited by FMSD on 2018-6-6 at 12:46. Please upvote it: How is this 9.7 calculated? Refer to Table P111 and the formula at the top of P114; the value of K should range from 1 to 13 ； Standardize the typo to 1 to 5! ! It’s strange that the formula doesn’t specify the value of the mode shape coefficient; it just gives the result directly. Additionally, in the G calculation formula after 39 in NB/T 47041-2014, the denominator (natural frequency period) corresponds to the respective mode shape ； According to the explanation on page P106, the G value is not calculated in this way. Why is that?