What is the difference between end-bearing piles and friction piles and when to used them? Please describe the construction process of both piles in steps.

Questions

1. Excavation

Describe the construction process of the diaphragm walls in steps. In what conditions should this be considered as an option for underground construction? Compare the advantages and disadvantages of the use of diaphragm walls.

2. Foundation

What is the difference between end-bearing piles and friction piles and when to used them? Please describe the construction process of both piles in steps.

3. Truss

Find all the zero-force members in the following truss and explain the steps. Name the members in the format: ab, bc, cd, etc.

4. Concrete

What are the reasons for introducing the prestressed concrete? Why can it improve the performance of concrete?

5. Scheduling

A building has 61 floors. Each floor requires five trade jobs. The work dependency is given in the following diagram. Productivity rates of the jobs are given in the table. Draw the Line of Balance chart at month 16.