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

Answers

Answer 1

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.

copyright

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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preview of 'Load It Up!' Activity

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preview of 'Doing the Math: Analysis of Forces in a Truss Bridge' Lesson

Doing the Math: Analysis of Forces in a Truss Bridge

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preview of 'Strength of Materials' Lesson

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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:


Related Questions

yeah uh what are these called pls

Answers

Music notes
Hope this helps:)
I play two different instruments

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?

Answers

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:)

Im a junior in high school and 3 days ago i took my PSAT i believe as you get older you find ways that work best for YOU to cope with testing anxiety, but one way to calm your nerves is to realize that the PSAT is only a practice test

In the equation above, kkk is a constant. For what value of kkk are there no solutions to the equation?

Answers

Answer:

h.. hey show the equation

Explanation:

send a picture of the equation

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

Answers

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.

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

Answers

Answer:

b

Explanation:

what would you do if you were caught in one of these hazards?

Answers

If I was caught in the hazard I would simply just die and give up
the options are not listed but i would try my hardest to survive until i was no longer able to

Magaling mag disenyo ng cake.
A. literary
B. artistic
C. persuasive
D. musical

please help me​

Answers

Answer:

B. Artistic

That's The Answer My Friend ❣️

supershaggy!!!!!!!!!!!!!!!!!!!!

Answers

Yus this is just bootaful

Can anyone help me in this question!!!

Answers

Answer:

ol

o29eero wm2m2mrote e9nnr

j1n2n2nmwm3 wo

Explanation:

kememerns1oddn

I think it might be D, after reading the paragraph the it was fairly easy to practice medicine, anyone could do it so “doctors” did not need to study and there was a tale of a woman who was a doctor part time and a coffee woman. So the most likely answer is D.

what belongs to you but gets used by everyone else more than you?

Answers

Answer:

your name

Explanation:

what are the similarities between home trade and foreign trade.​

Answers

All trade, whether domestic or interna­tional, arises from specialisation. As one region of a country brings the goods from other regions to make up the deficiencies, one country tries to bring goods and services, in which it has deficiencies, from other countries.

mark me as brillianist and enjoy points

Answers

Answer:

thx

Explanation:

im trying to rank up

brainlest?

Can anyone help me !!

Answers

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...

someone please help me with this!!!

Answers

Answer:

50 and 50

Explanation:

2 halfs make a whole

The answer is 50/50

What score do you need to pass SAT reading

Answers

You need 430 to pass the sat reading test
For eligible students, the concordant passing scale score shall be a score equal to or greater than four hundred and thirty (430) on the 200 to 800 scale for the SAT Evidence-Based Reading and Writing (EBRW) section, twenty four (24) on the 10 to 40 scale of the SAT Reading

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

Answers

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!

As used in line 43,"translate" most nearly means
А
convert.
B
move.
C
transform.
D
express.

Answers

Answer:

A. convert

Explanation:

to translate something, you are converting it to a simpler term or for someone to better understand.

People’s experience can aid them in their careers. Experiences are best described as

Answers

Answer:

in my opinion I'd say challenges or lessons

Answer:

d

Explanation:

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

Answers

Answer:

Diffusion

Explanation:

Answer:

diffusion

Explanation:

Which of the following is an unskilled worker?
Nurse's aide
Delivery person
Brick-layer
Architect​

Answers

Answer:

Brick-layer.

Explanation:

Can anyone help me in this question!!

Answers

Answer:

D

Explanation:

im not sure but ive had this question before and im 99% sure its D

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