Metals & Roofs, Beams, Trusses

Question 2

What are cable structures used for?

Answer 2

Support roofs or bridges

Examples include suspension bridges and tent structures.

Question 3

Define arches and shells in structural systems.

Answer 3

Curved forms that efficiently transfer loads

Question 4

What characterizes frame structures?

Answer 4

Comprised of beams and columns joined rigidly to form skeletal frameworks

Question 5

How do trusses function in structural systems?

Answer 5

Triangular units used to span large distances; efficient in load distribution

Question 6

What is the purpose of beams and beam grid structures?

Answer 6

Horizontal structural elements that resist bending

Question 7

What are plate and folded plate structures?

Answer 7

Flat or folded planar elements that provide strength through geometric shaping

Question 8

Describe slab structures.

Answer 8

Flat, horizontal surfaces (floors/ceilings) supported by beams or directly by columns

Question 9

What is the main composition of steel?

Answer 9

Mainly iron with 0.002%–2.14% carbon

Question 10

What is the minimum chromium content in stainless steel?

Answer 10

At least 11% chromium

Question 11

List some properties of steel.

Answer 11

• High tensile and compressive strength
• Ductile and malleable
• Recyclable and durable

Question 12

What are some design considerations for steel?

Answer 12

• Efficient for long spans
• Pre-fabrication friendly
• Requires corrosion protection
• Can be formed into complex shapes

Question 13

What types of structures are cable and truss structures used for?

Answer 13

Lightweight and large-span roofs

Question 14

What architectural needs do arches and shells fulfill?

Answer 14

Expressive, load-efficient forms

Question 15

What is a key characteristic of frames and beams in construction?

Answer 15

Modular, high-rise construction

Question 16

What types of systems do plates, slabs, and folded forms support?

Answer 16

Floor and roof systems

Question 17

Fill in the blank: Steel has _______ strength.

Answer 17

high tensile

Question 18

True or False: Steel is not recyclable.

Answer 18

False

Question 19

What makes steel durable over long periods?

Answer 19

It is resistant to corrosion and fire

Question 20

List some additional properties of steel.

Answer 20

• High strength to weight ratio
• Reliable machinability
• Conducts heat
• Resistant to pests
• Easily fabricated uniform quality
• Withstands heavy loads
• Cost effective over time
• Resistant to impact