ON MODELLING OF TYPHOON-INDUCED NON-STATIONARY WIND SPEED FOR TALL BUILDINGS
Current time: 11-15-2018, 06:32 PM
Users browsing this thread: 1 Guest(s)
Author: asim99
Last Post: asim99
Replies 0
Views 1146

ON MODELLING OF TYPHOON-INDUCED NON-STATIONARY WIND SPEED FOR TALL BUILDINGS
#1
ON MODELLING OF TYPHOON-INDUCED NON-STATIONARY WIND SPEED FOR TALL BUILDINGS

Author: J. CHEN AND Y. L. XU | Size: 1.74 MB | Format: PDF | Quality: Unspecified | Publisher: J. CHEN AND Y. L. XU | Year: 2004 | pages: 19

[Image: 30135286934115777190.jpg]


[Image: info.png]

Typhoon-induced wind around tall buildings may not be stationary because it is a large body of rotating air. A
new approach is thus proposed in this paper for characterizing typhoon-induced wind speed. Typhoon-induced
non-stationary wind speed is modelled as a deterministic time-varying mean wind speed component plus a zero
mean stationary fluctuating wind speed component. The time-varying mean wind speed is naturally extracted
from the measured wind speed time history using empirical mode decomposition (EMD). Wind characteristics
described in the traditional approach based on a stationary wind model are redefined and extended in the nonstationary
wind model. The new approach is then applied to wind data measured at the Di Wang building during
Typhoon York. The results show that most of recorded wind samples are non-stationary but they can be decomposed
into a time-varying mean wind speed component plus a well-behaved zero mean fluctuating wind speed
component admitted as a stationary random process with Gaussian distribution. Other wind characteristics such
as probability distribution of fluctuating wind speed, turbulence intensity, gust factor, and wind spectrum obtained
by the new approach seem to be more realistic than those gained by the traditional approach.

[Image: download.png]
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************



a- Follow the Forum Rules.
b- Use Search function before asking question, requesting or posting.
c- Use THANKS button if you like someone's post.
d- If you like abook/software then please buy the original. Encourage the writer/developer to continue their good work.
[-] The following 4 users say Thank You to asim99 for this post:
  • knrsa, malc, ting tsai huang, KhaLed-S.E
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Tall buildings amindoxiti 2 4,118 12-22-2017, 10:10 PM
Last Post: rami1976
Earthquake-Induced Collapse Simulation of a Super-Tall Mega-Braced Frame-Core Tube Bu TAFATNEB 0 2,160 07-05-2015, 12:37 PM
Last Post: TAFATNEB
Non-linear viscoelastic modelling of earthquake-induced structural pounding TAFATNEB 0 933 04-23-2014, 04:37 PM
Last Post: TAFATNEB
The Tall Buildings Initiative TAFATNEB 0 1,360 09-14-2013, 11:27 AM
Last Post: TAFATNEB
CHALLENGING DESIGN: FOUNDATIONS FOR TALL BUILDINGS TAFATNEB 0 1,639 08-28-2013, 09:02 PM
Last Post: TAFATNEB



Users browsing this thread: 1 Guest(s)