Assume you have been put in charge of a job for improving and altering an old ba

Question

Assume you have been put in charge of a job for improving and altering an old badly-weathered single storey brick walled warehouse with a cobble paved floor. The work includes building a basement under one end of the warehouse, constructing a timber joist floor for offices in one corner and laying a concrete floor over the reminder which will be free from dust. Describe the steps necessary to ensure stability of the walls, to construct the tmber floor to revent dry rot. Illustrate your written work with sketches. Please help this assignment stands between me and my diploma

Explanation / Answer

The building of basement below the existing warehouse requires lot of preliminary activities to be carried out.The steps includes -

1) All around the warehouse temporary concrete wall to be constructed till the proposed basement bottom level.This will prevent the soil supporting the exisiting foundation and the warehouse from getting weak.

2) Further excavation to be carried out and ensure to provide proper drainage system since water table will rise during excavations.

2) All the foundations need to be strengthened before further proceeding with excavation.

3)Mass concrete underpinning is the oldest method to strengthen the foundations to support the whole structure.Here another set of foundations are created below the existing foundation.This is usually done by digging boxex and filling them with concrete.

4)Alternate method will beam and base underpinning.Here reinforced concrete beam supported by concrete base is built underneath the existing structure to strngthen the structure.

5) Once the existing structure is strengthened futher excavations are done completely till the level needed for basment construction.

6) Once excavation is completed the next activites of construction to be carried out.

7) A concrete slab to be constructed above the basement.

8) After the slab work the basement floor and wall can be constructed.

9)For constructing timber floor, at that location a concrete bed to be placed first which act as a sub floor.

10) Above the sub floor a small slepper wall has to be placed.

11) A wall plate is attached above the slepper wall on which the timber floor joist rests.

12) A damp proof course separates the wall plate and sleeper wall which will prevent decaying of timber.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.