Engineering Inc - November/December 2017 - 19
An engineer at RWDI uses a
specialized device to test and
view air currents on a model of
Shanghai Centre.
RWDI
Topography and building models
are tested by RWDI in preparation
for building a bridge.
wind testing for Burj Khalifa, modified the shape and orientation through wind studies and testing. "It is a very aerodynamically efficient building. The height would not have been possible
without in-depth studies," Chatten explains.
In fact, testing scaled models in wind tunnels has emerged as
the primary method for understanding the effects of wind on
bridges and buildings. Once designers have developed a viable
design, wind engineers use CAD software and a 3D printer to
fabricate components for a model-roughly at a scale of 1:400.
The days of laboriously assembling models from wood and
Plexiglas have passed. The 3D model is assembled and equipped
with pressure sensors, typically ranging from a few hundred
to thousands, that together measure wind pressures across the
entire envelope. The resulting data is fed into a computer, and
proprietary software crunches the climate data and test data.
The end result is a mathematical model of how the building will
sway in the wind-and how it will fare under different conditions and scenarios.
If a structure looks sound and it fits desirable criteria, the
structural engineers can proceed with the design. If the test
shows that the building or bridge will sway excessively, the teams
will change the natural frequency of the structure or make other
necessary modifications to correct the underlying problem.
Another model may go back in the wind tunnel for additional
testing. Either way, when the testing has been completed and the
software has crunched all the data, the consulting firm provides
structural engineers a report with the wind loads. The wind
"If people are living and working in a high-rise building and
there is a significant sway once every five or 10 years, it's not
a problem. If it's a monthly event, they're probably not going
to find it acceptable."
MARK CHATTEN | RWDI CONSULTING ENGINEERS AND SCIENTISTS
NOVEMBER / DECEMBER 2017
ENGINEERING INC.
19
Table of Contents for the Digital Edition of Engineering Inc - November/December 2017
Engineering Inc - November/december 2017
Contents
Standing Up to Mother Nature
Fall Conference
P3s to the Rescue
Young Professionals of the Year
Self-Sustainability
Navigating the Marketplace
Creating Meaningful Connections
From Acec to You
Market Watch
Legislative Action
Guest Column
Mergers and Acquisitions
Members in the News
Florida M.o. Adopts Powerful Acec Brand
Business Insights
Engineering Inc - November/December 2017 - Intro
Engineering Inc - November/December 2017 - Engineering Inc - November/december 2017
Engineering Inc - November/December 2017 - Cover2
Engineering Inc - November/December 2017 - Contents
Engineering Inc - November/December 2017 - 2
Engineering Inc - November/December 2017 - 3
Engineering Inc - November/December 2017 - From Acec to You
Engineering Inc - November/December 2017 - 5
Engineering Inc - November/December 2017 - Market Watch
Engineering Inc - November/December 2017 - 7
Engineering Inc - November/December 2017 - Legislative Action
Engineering Inc - November/December 2017 - 9
Engineering Inc - November/December 2017 - Fall Conference
Engineering Inc - November/December 2017 - 11
Engineering Inc - November/December 2017 - 12
Engineering Inc - November/December 2017 - 13
Engineering Inc - November/December 2017 - Standing Up to Mother Nature
Engineering Inc - November/December 2017 - 15
Engineering Inc - November/December 2017 - 16
Engineering Inc - November/December 2017 - 17
Engineering Inc - November/December 2017 - 18
Engineering Inc - November/December 2017 - 19
Engineering Inc - November/December 2017 - 20
Engineering Inc - November/December 2017 - 21
Engineering Inc - November/December 2017 - P3s to the Rescue
Engineering Inc - November/December 2017 - 23
Engineering Inc - November/December 2017 - 24
Engineering Inc - November/December 2017 - 25
Engineering Inc - November/December 2017 - 26
Engineering Inc - November/December 2017 - Young Professionals of the Year
Engineering Inc - November/December 2017 - 28
Engineering Inc - November/December 2017 - Self-Sustainability
Engineering Inc - November/December 2017 - 30
Engineering Inc - November/December 2017 - 31
Engineering Inc - November/December 2017 - 32
Engineering Inc - November/December 2017 - 33
Engineering Inc - November/December 2017 - Navigating the Marketplace
Engineering Inc - November/December 2017 - 35
Engineering Inc - November/December 2017 - 36
Engineering Inc - November/December 2017 - 37
Engineering Inc - November/December 2017 - Creating Meaningful Connections
Engineering Inc - November/December 2017 - 39
Engineering Inc - November/December 2017 - 40
Engineering Inc - November/December 2017 - 41
Engineering Inc - November/December 2017 - Guest Column
Engineering Inc - November/December 2017 - 43
Engineering Inc - November/December 2017 - Mergers and Acquisitions
Engineering Inc - November/December 2017 - 45
Engineering Inc - November/December 2017 - 46
Engineering Inc - November/December 2017 - 47
Engineering Inc - November/December 2017 - Members in the News
Engineering Inc - November/December 2017 - 49
Engineering Inc - November/December 2017 - Florida M.o. Adopts Powerful Acec Brand
Engineering Inc - November/December 2017 - 51
Engineering Inc - November/December 2017 - Business Insights
Engineering Inc - November/December 2017 - Cover3
Engineering Inc - November/December 2017 - Cover4
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