Imagine you are a civil engineer who designs buildings. How might testing small-scale building models or their components be helpful in testing improvements and changes to the building design? is for my science class
Answer:
Photo shows a row of concrete columns and beams that compose a bridge crossing a body of water.
A concrete bridge in Dallas, TX.
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Summary
Students learn about the types of possible loads, how to calculate ultimate load combinations, and investigate the different sizes for the beams (girders) and columns (piers) of simple bridge design. They learn the steps that engineers use to design bridges by conducting their own hands on associated activity to prototype their own structure. Students will begin to understand the problem, and learn how to determine the potential bridge loads, calculate the highest possible load, and calculate the amount of material needed to resist the loads.
This engineering curriculum aligns to Next Generation Science Standards (NGSS).
Engineering Connection
Engineers who design structures must completely understand the problem to be solved, which includes the complexities of the site and the customer needs. To design for safety and longevity, engineers consider the different types of loads, how they are applied and where. Engineers often aim for a design that is strongest and lightest possible—one with the highest strength-to-weight ratio.
Learning Objectives
After this lesson, students should be able to:
List several examples of loads that could affect a bridge.
Explain why knowledge about various loads or forces is important in bridge design.
Describe the process that an engineer uses to design a bridge, including determining loads, calculating the highest load, and calculating the amount of material to resist the loads.
Educational Standards
NGSS: Next Generation Science Standards - Science
Common Core State Standards - Math
International Technology and Engineering Educators Association - Technology
State Standards
Suggest an alignment not listed above
Worksheets and Attachments
Load Combinations Worksheet (docx)
Load Combinations Worksheet (pdf)
Load Combinations Worksheet Answers (docx)
Load Combinations Worksheet Answers (pdf)
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Pre-Req Knowledge
The students should have a familiarity with bridge types, as introduced in the first lesson of the Bridges unit, including area, and compressive and tensile forces.
Introduction/Motivation
We know that bridges play an important part in our daily lives. We know they are essential components of cities and the roadways between populations of people. Some bridges are simple and straightforward; others are amazingly complex. What are some bridges that you know that might be called simple bridges? (Possible answers: Log over a creek, bridges over streams.) What are some bridges you know that might be considered more complicated? (Possible answers: Golden Gate Bridge, other large bridges, bridges that carry both highway traffic and train traffic.) What makes some bridges simple and other complex? (Possible answers: Their size, multiple purposes, environmental conditions, environmental forces, material maintenance requirements, etc.)
One amazing example of a bridge's contribution to connecting people to other populations and places for both social and commerce reasons is the Sky Gate Bridge connecting people to Japan's Kansai International Airport, located in Osaka Bay.
It all started when the nearby Osaka and Tokyo airports were unable to meet demand, nor be expanded. To solve the problem, the people of Japan took on one of the most challenging engineering projects the world has ever seen. Since they had no land for a new airport, they decided to create the Kansai International Airport by constructing an entire island! On this new, artificial island, they built the airport terminal and runways. Then, they needed a bridge to access it. Spanning 3.7 km from the mainland in Osaka to the airport in an ocean bay, the Sky Gate Bridge is one of the longest truss bridges in the world and has an upper deck for auto transport and a lower, internal deck for rail lines.
Aerial satellite image shows urban shoreline, blue bay waters, and long bridge connecting shore to a rectangular island containing airport terminal and runways.
Satellite image of Sky Gate Bridge to Kansai Airport in Osaka Bay, Japan.
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Explanation:
Alright everyone. I have to take the PSAT and I'm a bit nervous. I'm not even supposed to take them in the eight grade so I'm even more nervous. How should i calm my nerves?
Answer:
HI i took the psat 2 days ago, and do not stress at all, I had stressed so much before I took it, but really, it nothing to stress about, this is a practice test, so when you take the SAT in the near future, you know what specific things you need to work on all along, just remeber all along the test that this is a PRACTICE test, so really there no need to stress, make sure you get a good night sleep and eat food before you go take it:)
Which of the following is an unskilled worker?
Nurse's aide
Delivery person
Brick-layer
Architect
Answer:
Brick-layer.
Explanation:
how has America changed over the years
When you are simply guessing in any test subject, which bubble should you fill in? *
2 points
None of them, leave it blank.
Pick a different answer choice for each guess.
It doesn't matter which answer choice you pick, as long as you use the same one each time you are guessing.
B and only B - no exceptions
Answer:
My teachers always told me to choose B if I'm guessing and don't know the answer. Its a greater chance that the answer is B than any other choice. So I would say choose B and only B
Explanation:
hope this helps!
what would you do if you were caught in one of these hazards?
Can anyone help me in this question!!!
Answer:
ol
o29eero wm2m2mrote e9nnr
j1n2n2nmwm3 wo
Explanation:
kememerns1oddn
Magaling mag disenyo ng cake.
A. literary
B. artistic
C. persuasive
D. musical
please help me
Answer:
B. Artistic
That's The Answer My Friend ❣️
what are the similarities between home trade and foreign trade.
what belongs to you but gets used by everyone else more than you?
Answer:
your name
Explanation:
can you think of a possible explanation for the change in the thickness of the ozone layer in the years before the methyl bromide began to produce
Answer:
Explanation:
Methyl bromide is a fumigant used to control pests in agriculture and shipping. Methyl bromide also depletes the ozone layer. Therefore, along with other countries, the United States has phased out production and consumption of methyl bromide with important exceptions for critical uses as well as quarantine and preshipment.
yall sorry no QT for yall it want let me do one
Answer:
A
Explanation:
Can anyone help me !!
Answer:
i think its B
Explanation:
If the police were giving someone a ticket it would't stop the whole traffic, i do not believe there is enough evidence to support that a bridge fell or that the accident that happened had a teenager involved in it...
mark me as brillianist and enjoy points
Answer:
thx
Explanation:
im trying to rank up
brainlest?
What score do you need to pass SAT reading
Which process moves molecules and has these traits?
–moves from high concentration to low concentration
–moves from uneven distribution to even distribution
–can occur when there is no membrane
active transport in a cell
diffusion
osmosis
passive transport in a cell
Answer:
Diffusion
Explanation:
Answer:
diffusion
Explanation:
Can anyone help me in this question!!
Answer:
D
Explanation:
im not sure but ive had this question before and im 99% sure its D
What is the theory for formation of fossil fuel plz help
A:cabon dioxide levels decreased, resulting in nitrogen fixation
B:earth cooled, changing oxygen to carbon
C:fossil fuels are the remnants of organisms that lived a long time ago and were buried, heated, and formed into hydrocarbons
D:fossil fuels arrived on earth from comets and asteroids
Answer:
C.fossil fuels are the remnants of organisms thta lived long time ago and were buried heated and formef into hydrocarbons
What is typically the best strategy to use when taking a test?
A. Leave questions you cant answer blank.
B. Erase all of your notes.
C. Use extra time to review your answers.
D. Hand in your test early and leave.
SUBMIT
Please help
Cramming is a common study technique used to get ready for an exam or other performance-based test. Cramming is a technique used to memorize a lot of information quickly. It is most popular among students in high school and college. Thus, option B is correct.
What are the benefits of finishing test early?It's best to cease studying 12 to 24 hours before the exam, advises Grunewald. You won't discover much fresh information.There is a far greater chance that you may confuse and stress yourself out. Flashcards are a useful study aid for those who are studying on short notice.
According to research, taking deliberate breaks (anywhere between 5 and 60 minutes) from studying to recharge your mind and body enhances your energy, productivity, and capacity for concentration. Remember that social media is not a good “purposeful break” (see the research).
Therefore, make sure your answers correspond to the right questions.
Learn more about test here:
brainly.com/question/28031647
#SPJ5
Which of the following does not influence the rate of weathering of rock?
(A) rock composition (B) human activities (C) temperature changes
(D) soil order
Answer:
b
Explanation:
supershaggy!!!!!!!!!!!!!!!!!!!!
As used in line 43,"translate" most nearly means
А
convert.
B
move.
C
transform.
D
express.
Answer:
A. convert
Explanation:
to translate something, you are converting it to a simpler term or for someone to better understand.
Foodball23 if you hate me you will answer this question if you don't hate me tell me so please and thank you
Answer:
i dont hate you
Explanation:
In the equation above, kkk is a constant. For what value of kkk are there no solutions to the equation?
Answer:
h.. hey show the equation
Explanation:
send a picture of the equation
People’s experience can aid them in their careers. Experiences are best described as
Answer:
in my opinion I'd say challenges or lessons
Answer:
d
Explanation:
someone please help me with this!!!
Answer:
50 and 50
Explanation:
2 halfs make a whole
yeah uh what are these called pls