Engineering Inc - November/December 2017 - 16
16
ENGINEERING INC.
NOVEMBER / DECEMBER 2017
Designing and engineering for wind isn't a new concept. It has
been used in one form or another for nearly half a century. In the
1960s, several pioneers in the field-including Alan Davenport,
Jack Cermak and Peter Irwin-began using scaled models along
with wind tunnels to better understand the physics of air currents
and their effect on structures.
Before that, engineers had relied on manual calculations and
best guesses to construct wind-resistant structures. That meant
incorporating more steel and concrete. "It was a laborious process.
The buildings-often incorporating heavy masonry claddings and
heavy masonry interiors-required adequate lateral strength and
stiffness to handle both vertical loads and wind impact," says Robert Sinn, principal at New York City-based structural engineering
firm Thornton Tomasetti.
WINDS OF CHANGE
The 167-floor
Jeddah Tower
in Saudi Arabia
will be the first
structure to rise
above
1 kilometer
(0.621 miles)
In extreme wind conditions such as a typhoon or hurricane, the
stakes grow considerably-particularly for today's ultra-high-rise
buildings. We all have been inundated with stories of recent and
devastating hurricane wind speeds of 150 mph and more. As a
result, architects and engineers turn to increasingly sophisticated
methods to understand wind conditions and design structures for
greater resiliency and comfort. They may alter the basic shape or
use materials that are better suited for specific wind conditions,
such as tuned mass dampers that absorb mechanical vibrations and
shell components that temper noise from the wind.
Engineering wind-resilient structures and spaces is a complicated
endeavor that relies on both human ingenuity and science. Projects
must also mesh with other environmental factors,
including falling snow and ice, snow loads and solar
conditions. Consulting firms tap detailed climatological data, local wind data and more to grasp how
wind affects a structure in a particular spot. But
that's only a start.
Armed with a statistical wind model, these firms
fabricate a scaled 3D model of a structure or even
an entire community, and then equip these models with sensors and place them in a wind tunnel
for extensive testing. "You subject the model to
a 15-minute storm in just under a minute. You
wind up with an understanding of how the shape,
structure and materials on the building will handle
wind," says David Banks, principal at CPP Wind
Engineering & Air Quality Experts, Inc., Fort
Collins, Colorado.
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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