Transcript Wind vs. Shelter

Wind Forces
EXPOSURE
city buildings
LAMINAR and
TURBLENT FLOW
Hands On Activity
LIFT
Wind Basics
Build a rectangle
(soda straws) with
pinned joints and
discover if it is “stable”
or “strong” with an
external force applied
PRESSURE or SUCTION
Learning Objective
for the student
SOLVE for H and V
Sin 35 = V / 150
Cos 35 = H / 150
150 #
Joe Feldstein, Bowie High
School, 9th-12th grade honors
program teacher
PAP Pre Calculus, PAP Algebra 2,
TAKS Math,
WIND VS. SHELTER
Dr. Yazdani Nur and
Tanvir Manzur
Extend each of these basic
structures into 3 dimensions
. . . Prism
and
Pyramid
Implementation: My students were
given a presentation on this application
designed to provide the seed for their
future interest in engineering studies at
the university They saw how wind
effected buildings, design
considerations, both by hand physics
calculations and digital results. They
built basic space structures with pinned
joints and using experiential learning,
and made decisions about shape and
stability. Video clips were used to
captivate their interest.
Project Objective :
This Research Experience for Teachers is to study the parameters for analytical , statistical , and digital methods for determining the effect of extreme wind on structures.
Project Description:
The purpose of a shelter is to protect us from the elements. It must maintain structurally integrity from external loads. Wind is a major source this load. The surface of the shelter resists the wind
and passes this force to internal supports. This project guides the student thru the design considerations so see how this force is eventually is passed to exit the structure where it touches the
ground.
Lesson Plan Brief:
A structure’s ability to resist wind forces is a function of the geometry of the surface and the supports; i.e. angles, distances, and thickness of members. This lesson addresses these angles,
distances and design considerations as shown by the above photos.