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DESIGN AND CONSTRUCTION OF A METALLIC BOOK SHELF

DESIGN AND CONSTRUCTION OF A METALLIC BOOK SHELF

ABSTRACT

This project aims at designing and constructing a book metallic shelf hose capability will be to contain different standard sizes of books at minimum paces.

What is taken into consideration in this project are the cost of its production, processes, and maintenance.

Other considerable factors are the functional aspect of the plant/equipment and its durability as well as the reliability. Portability, stability and the physical appearance of the entire equipment.

TABLE OF CONTENTS

CHAPTER ONE

1.0       introduction

1.1       description of the metal bookshelf

1.2       purpose of the project

1.3       aims of the project

CHAPTER TWO

2.0       Design analysis

2.1       Definitions of terms

2.2.      Basic mathematical expression for calculation

2.3.      Capacity of bookshelf

CHAPTER THREE

3.0       Material selections

3.1       Tools /equipment

3.2       Construction

3.3.      Sequence of construction of the various parts

CHAPTER FOUR

4.0       Cost analysis

4.1.      Purpose of cost estimating

CHAPTER FIVE

5.0.      Maintenance guideline

5.1.      Recommendation

5.2.      Conclusions

Reference

CHAPTER ONE

1.0       INTRODUCTION

A bookshelf is a device with partitions used for the purpose of books and files in offices, libraries and at homes.

A bookshelf can be wooden, metal or glass. They could also be design in such a way that they could be dismountable or undismountable. In our project, we decided to design and construction an undismountable metallic bookshelf.

Among the bookshelves, the undismountable metallic bookshelf has the longest life span because of its rigidity, quality of material and it ability to with stand heavy loads.

In other words, the constant loosening and coupling of the component parts which lead to the weakness of the bolt and nut, thus subject the shelf to vibration.

Our project being the undismountable bookshelf was constructed with variety of material. The type of materials involved are mild steel sheet metal, metals nets (wire gauze) etc. in this the mild steel sheets were use to cover the partitions and outside bodies of the where used in the corruption of the two doors.

The essence of creating steel frame work is for it to with stand the stress that will be develop due to the weight of the material and loads on each partition. In construction, the frame was first erected before covering with the mild steel sheet. The mass and volume of the book to be contained by each partition were considered before they were erected, so certain experiment were carried out which will be discuses in detail in this report.

1.1       DESCRIPTION OF THE METAL BOOKSHELF

The metal bookshelf as shown in fig.1.0 is made up of the following parts and components.

i.          The frame work

ii.         The side

iii.        The back

iv.        The doors

v.         The top or plane

vi.        The stand wheels

vii.       The partitions

viii.      The drawer

viiii.     The top projection

THE FRAME

The frame shown in fig. 1.1 is the skeleton of the whole shelf, it is made of folded mild steel of bended edge 37.5mm (1 ½) and thickness of 1mm. The frame was first created together by means of welding before the sheet was covered at the back half way on each coach partitions, side, top and the partitions.

The frame was design to withstand the stress that will be develop on it due to the weight of sheet metals and load on each partition.

Fig. 1.1

THE SIDE

The side as shown in Fig. 1.2 is made up of a mild steel of 1.0mm thick with height 168cm and length 85cm.  It was welded to the frame (at an angle 900)

The top project and the stand wheel gives the total height of the (bookshelf) side.

Fig. 1.2

THE BACK

The back as shown in fig 1.3 is made of mild steel sheet of thickness 1.0mm, 168cm by height and 85cm in length and was also welded diagonally to the frame(at an angle 90) half way on each loach partitions to keep away visible book  destructive agent

Fig 1.3

THE DOOR

The metal bookshelf has two door two loaches the left and right doors which are cohered with metal net or wire gauze respectively shown in fig. 1.4, the doors, was  constructed with folded mild steel of bended edge 37 mm and cohered with wire gauze to allows the user to view inside the shelf, to know if the particular book or file he/she is searching for is in that particular bookshelf.

Fig.1.4                       one side of the door

THE TOP OR PLANE

The top as shown in fig. 1.5 is made of a mild steel sheet of thickness 1.0mm and 168 cm length by 85 cm width and it is also welded diagonally to the frame (I e at angle 90).

Fig 1.5 The plane (top)

THE STAND WHEELS

The stands were made from a rectangle folded mile steel of bended edge and a fixed wheels for easy change of position. The two back stand were made from square pipe while the two front stands were made from the rectangular pipe.

This stand were exerted from the frame work to enable stronger gripe, avoid bending, breaking and also fixed to wheels. The stand and wheels add to the height of the metal bookshelf to total of mm in height and there are four stands under the bookshelf attach to four wheels.

THE PARTITIONS:

The partitions were design to be able to contain large number of books. They are measured168 cm by height,85 cm by length and 33cm by breadth. The material used for the partitions was mild steel plate of 1.2mm thick was welded to the frame work of the partitions

The volume of the partition

= L X b x h

20cm x 33cm x20cm

= 13200cm.

Area of partition

= 2(Lb+bh+Lh)

= 2(20 x 33 + 33 x20 +20×20)

=2 (660 +660+400)

= 2 (1720) = 3440cm

= 34+4m2

1.2       PURPOSE OF THE PROJECT

The purpose of this project is to design and construct a metallic bookshelf capable of concerning different standard size of books. The design should be able to compete favorably with other accepted standards.

1.3       AIMS OF THE PROJECT

This project is aimed at providing a modification to a metallic bookshelf for offices and homes use as well as:

(i)         To provide live equipment in the office that could be used for exhibition by the staff.

(ii)        Improving the printing processes and quality of production and reducing cost of production.

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