9.1 A 100-ft-long loose-laid, roof membrane (a = 0.000 150 in/in-°F) will be installed on a flat roof at a temperature of 45°F. On a hot summer day, the temperature of the roof membrane can rise to 130°F. In the winter, the temperature of the roof membrane can fall to -20°F. . (a) Determine how much the roof membrane will expand if it is not restrained. (b) Determine how much the roof membrane will contract if it is not restrained.

Q: What is the role of an expansion joint in bridge construction?

A: Step 1: Detailed solution above. Step 2: Step 3: Step 4:

Q: Why is plenumrated cabling required above ceiling tiles?

A:

Q: What type of building systems are CLT panels used for?

A:

Q: In what colors is marble found?

A: To determine: In what colors marble is found.

Q: Why are the rods are required to have some concrete coverage?

A: The space between the reinforcing rods and the concrete is called as concrete cover. While pouring…

Q: Describe the two basic methods for protecting joints

A: There is expansion and contraction of joints provided on the walls. Any foreign object that enters…

Q: What Lightweight Concrete?

A: Objective: To state what is Lightweight concrete.   Solution: Lightweight concrete, as the name…

Q: What problems do wind forces cause for cladding systems?

A: Solution: The cladding system must have sufficient structural strength in order to resist the wind…

Q: Determine the degree of indeterminacy of the following truss

A: Given data : Member (m)=14 Joint (J)=8 Support reaction (R)=2+1=3

Q: Why is it so difficult to make cladding watertight?

A: Cladding Cladding is difficult to make watertight cause wind pushes water in any direction on the…

Q: What are the main two differences between a pre-tensioning system and an unbonded post- tensioning…

A: In pre-tensioning system, the tendons are pre-stressed before the concrete is poured or hardened.…

Q: How can the cracking of any attached brittle materials such as concrete or plaster be prevented?

A: It is commonly believed that cracks are due to any foundation issues, although it is not always…

Q: What considerations should be made when inspecting building structural steel connections for safety…

A: When inspecting building structural steel connections for safety and durability, several key…

Q: why are trusses mainly used on roofs?

A: A truss is a structural member that is used to carry the loads in different directions. A truss is a…

Q: Why is glass resistant to corrosion?

A: Glass is much more corrosion resistant than most other substances.

Q: Describe Applying the shotcrete wall surface.

A:

Material Selection

A wide variety of engineering applications make use of different materials, depending upon their usage. The materials used in civil engineering vary in their properties such as strength, ductility, brittleness, and creep strength. Depending upon the application and external loading conditions, an engineer must make a wise decision for material selection. A wrong decision would fail in its functionality.