MATLAB GROUP ONE

MEMBERS1) 5876911 MADUEKWE, Chinedu 2) 7738912 DONKOR, Hoseas Kofi3) 7734312 ABDUL, Rasheed Mohammed4) 7736212 AMOAKO, Steve Ahenkora5) 7739312 DZAKLO, Courage Kwasi6) 7741312 OGBETUO, Diamond7) 7734812 ADOMAH, Clarence Yaw8) 7741812 OSEI-BOATENG, Jeremiah

PROJECtSLAB DETAILING:CALCULATIONS OF QUANTITIES AND LENGTHS OF VARIOUS REINFORCEMENT BARS USED IN SLABS

DETAILS OF THE PROJECT

d

b

ca1

A

B

2

1

3

2

5

4

DETAILS OF THE PROJECTThe program takes into account a main slab(a*b) and the adjacent slab’s lengths(c and d).

It calculates all quantities of bars of the two orientations(vertical or horizontal)

It takes into account the ‘c’ and ‘d’ in the calculations of length of bars in the main slab.

Through interactions with the user and the program other values are inputted.

The three main types of bars used in the program are the top, bottom and distribution bars.

The added part of the program is to estimate the price of bars needed after knowing the quantities (i.e. if only the price of a unit meter bar is known )

Values inputted-depending on the preference of the user (engineer , professional)-

n denotes cover

s denotes column size

t denotes slab thickness

e denotes spacing

p denotes price of unit meter bar

Program pseudocode1. Start the program2. Inputs

a denotes ‘length of the main slab’ b denotes ‘breadth of the main slab’ c denotes ‘length of adjacent slab (either left or right of main slab)’ d denotes ‘breadth of adjacent slab (depends on the side selected

in ‘c’ above)’ n denotes ‘the cover’ s denotes ‘column size’ t denotes ‘slab thickness’ e denotes ‘spacing of bars’ p denotes ‘price of a unit meter bar’

Program pseudocode3. Selection of case to use in calculations(case 1 is for the calculations using

the ‘a’ span for bars orienting vertical and case 2 for the calculations using the ‘b’ span for bars orienting horizontal)

4. (a) for case 1;

T=[(a/e)-1] Top bar quantity

E=[0.3*b]+[0.3*d] Top bar length

P1=[(T*E*x)/1000] price of a unit meter of top bar

B=[(a/e)-1] Bottom bar quantity

F=[(1.6*b)+(2*s)-(8*n)+(2*t)] Two folded bottom bar length

P2=[(B*F*x)/1000] price of a unit meter of bottom bar with two sides folded

G=[(1.3*b)+(2*s)+(t)-(4*n)+300] Bottom bar with one side folded length

P3=[(B*G*x)/1000)] price of a unit meter of top bar with one side folded

D=[(a/(e+300)] distribution bar quantity

H=[0.6*b)] distribution bar

P4=[((D*H*x)/1000)] price of a unit meter of a distribution

Program pseudocode4. (b) For case 2;

T=[(b/e)-1)]

E=[(0.3*a)+(0.3*c)]

P1=[(T*E*x)/1000]

B=[(b/e)-1)]

F=[1.6*a)+(2*s)-(8*n)+(2*t)]

P2=[(B*F*x)/1000)]

G=[(1.3*a)+(2*s)+(t)-(4*n)+300]

P3=[(B*G*x)/1000)]

D=[(b/(e+300)]

H=[0.6*a]

P4=[(D*H*x)/1000]

Program pseudocode

5. EVALUATION: If values of T, B and D are whole numbers ‘maintain the values’ but if decimal round to the next whole number.

6. EVALUATION: If value of D is even ‘maintain’ but if odd add one (1) to the value.

7. Display (T, E, P1) , (B, F, P2) , (B, G, P3) , (D, H, P4).

8. Stop the program.

FLOWCHART

NO

YES

Whole

num

bers

and m

ain

tain

Deci

mal num

bers

Even

(T,

B, D

)? T= ceil (T)

B= ceil (B)

D= ceil (D)

 

D

?

VA

LUE O

F ‘D

’D

= D

+1

Odd

CA

SE

2TYPE

OF

CA

SE

?

INPU

TS

( a,

b,

c, d

, n, s,

t, e, p

)

CA

LCU

LATIO

NS (

T, B

, D

, E

, F,

G,

H)

T= [(b/e)-1]

B= [(b/e)-1]

D= [b/ (e+300)

E= [0.3*a0.3*c]

F= [1.6*a)+(2*s)-(8*n)+(2*t]

G= [1.3*a)+(2*s)+(t)-(4*n)+300]

H= [0.6*a]

  

CA

LCU

LATIO

NS (

T, B

, D

, E

, F,

G, H

)

T= [(a/e)-1]

B= [(a/e)-1]

D= [a/ (e+300)]

E= [0.3*b)+(0.3*d]

F= [1.6*b)+(2*s)-(8*n)+(2*t]

G= [1.3*b)+(2*s)+(t)-(4*n)+300]

H= [0.6*b]

  

CA

SE

1

STA

RT

CA

LCU

LATIO

NS (

PI, P

2, P3

, P4

)

P1= [(T*E*x)/1000]

P2= [(B*F*x)/1000]

P3= [(B*G*x)/1000]

P4= [(D*H*x)/1000]

 

OUTPUT

T, B, D, E, F, G, H,

P1, P2, P3, P4

   

STO

P

Is it

valu

e

D?

Significance of the program

The program is intended to lessen the work load on a civil /geotechnical engineer or any other professional in manually calculating quantities, lengths and even estimating prices of bars he/she might be expected to use in a project.

Thank you