日韩精品一区二区三区四区蜜桃,欧美专区,亚洲AV超清无码不卡在线网络,精品成在人线AV无码免费看

damped steel structure than the selected seismic calculation is how much?

Guangzhou Steel News: damped steel structure than the selected seismic calculation is how much?

1, multi-case calculation of earthquake under a height of not more than 50m when desirable 0.04; height greater than 50m and less than 200m, preferable 0.03; the height of not less than 200m, should take 0.02.
2, when the eccentric portion of the support frame bear seismic overturning moment more than 50% of the total seismic overturning moment of the structure, its damping ratio (1) of this section corresponding increase in comparable 0.005.
3, under rare earthquake elastoplastic analysis, damping ratio 0.05 preferable. Guangzhou Steel