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Reference Calculation Output

Area of concrete

Area of concrete in compression

Area of tension reinforcement

Minimum area of tension reinforcement

Length of that part of member traversed by shear failure plane

b With (breath) or effective width of sectionc Cover to outer diameter

d ffective depth of section

!asic force used in defining compressive forces

!asic force used in defining tie forces

Characteristic strength of concrete

stimated design service stress in the tension reinforcement

Characteristic strength of reinforcement

" #hear modulus

$ Ma%imum hori&ontal force

$ori&ontal force in % direction

$ori&ontal force in y directionh Overall depth

'L 'nife edge load

L Critical perimeter

imension of element on % direction

imension of element on y direction

imension of element on & direction

M esign ultimate resistance moment

Moment on % a%is

Moment on y a%is

Moment on & a%is

#urcharge loadr *nternal radius of bend

#L# #erviceability limit state

+ +raction force

t +hic,ness of the element

-L# -ltimate limit state

. #hear force due to design ultimate loads or design ultimate value of a

concentrated load

v esign shear stress

vc esign shear stress in concrete

% /eutral a%is depth

%0 istance from 1 a%is to the centroid of an elementy' istance from 2 a%is to the centroid of an element

& Lever arm

&0 istance from 2 3 1 plane to point where the considered resultant

force acting

Coefficient4 variously defined4 as appropriate

#train in tension reinforcement

/ominal range of movement

#oil friction angle4 or diameter

Active earth pressure

-nit weight of soil

5artial load factor5artial load factor

oc6 /o6

DESIGN UNIT esigned

Ac

Acc

As

s min

av

7c

7t

fcu

fs

fy

$%

$y

l%

ly

l&

M%

My

M&

ate

s

a

fL f3

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EPC DIVISION Chec,ed ate

CENTRAL ENGINEERING CONSULTANCY BUREAU (CECB) 8ob Code 5age

Reference Calculation Output

EC

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oc6 /o6

DESIGN UNIT esigned

EPC DIVISION Chec,ed ate

CENTRAL ENGINEERING CONSULTANCY BUREAU (CECB) 8ob Code 5age

Reference Calculation Output

DEC

ate

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oc6 /o6

DESIGN UNIT esigned

EPC DIVISION Chec,ed ate

CENTRAL ENGINEERING CONSULTANCY BUREAU (CECB) 8ob Code 5age

Reference Calculation Output

DEC

ate

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oc6 /o6

DESIGN UNIT esigned

EPC DIVISION Chec,ed ate

CENTRAL ENGINEERING CONSULTANCY BUREAU (CECB) 8ob Code 5age

Reference Calculation Output

DEC

ate

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oc6 /o6

DESIGN UNIT esigned

EPC DIVISION Chec,ed ate

CENTRAL ENGINEERING CONSULTANCY BUREAU (CECB) 8ob Code 5age

DEC

ate

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Reference Calculation Output

Design of Box Culve!

7igure 9:

imentional 5roperties

h ; :6< m

l ; :6= m

#oil Cover 4 $ ; >6< m

#afe !earing 5ressure ; :=9 ,/?m