CHAPTER ONE
1.1 INTRODUCTION
A bookshelf is an invention with compartments and partitions where books and files are packed in offices, libraries and even homes.
A bookshelf can be wooden, metallic or even glassed. They could also be dismountable metallic and indismountable.
In our project, we decide to design and fabricate an undismountable metallic bookshelf. Certain factors were considered before embarking on this project.
An undismountable metallic bookshelf, have a longer life span and serves its purpose better than a wooden bookshelf. Also lose of parts of many dismountable bookshelf held us into opting for the one with its pant in tact.
Nevertheless, the need for preservation of books to enhance researches and studies purpose has brought about the construction of bookshelves for offices, libraries and homes. Thus, these protects the books from been easily destroyed by ants, rats, and from children.
And it also enhances systematic arrangement of books for easy reference of location.
In the fabrication, the frame first erected before making the sides and the partitions with the steel material. The mass and volume of the books to be contained by the partitions were considered before they were erected; so certain experiments were carried out which will be further discussed in the report.
1.2 DESCRIPTION OF THE METALLIC SHELF
This description of the metallic shelf is as shown in fig 1. It is made up of the following pants.
(i) side
(ii) back
(iii) partition
(iv) frame work
(v) door
(i) SIDE
The side of the bookshelf are shown in fig 1a. It is made up the square pipe frame and the mild steel plate material welded to it. Each side is specially designed to act as support in carrying the load under any stress. the load dispersed on the system. The sides measures and tacted at an angle of 900 to each other giving the system a more rigid frame work. The sides measures.
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