2

Question 1

What do loop and main reinforcement resist

Answer 1

1. Shear
2. Bending moments

Question 2

What is concrete cover and its purposes (4)

Answer 2

Concrete which protects the first layer of steel measured from the first layer to the exterior edge
Purpose
1. Protect steel from corrosion
2. Five protection
3. Anchor steel to allow the forces to develop in reinforcement
4. Allows concrete to flow around the steel

Question 3

Mild steel and high yield steel

Answer 3

Ms are Called r bars and are 250MPA strong and anchor with chemical bonding, used in fixing steel and reinforcement hooks
2. Y bars 450 MPA and anchor with chemical and mechanical voiding

Question 4

Column steel Principles

Answer 4

Put main rc steel in exterior corners
Main re steel should not be less than y12
Re steel used for compression strength in columns
Columns are designed for bending and asocial loads
Steel is placed symmetrically