Answer / pratyush mohan jha

to avoid cofusion provide reinforcement in direction
perpendicular to flexural crack.

in case of slab---- yield line is parellel to longer span,
hence reinforcement is provided parellel to shorter span.


in case of beam flexural crack occures parallel to cross
section ( not parallel to length of the beam). hence
reinfocement is provided horizontally parralel to length.

Answer / c. mak

The primary load transfer direction will be in the shorter
span and as a result large negative bending moments will
occur at these supports. Therefore reinforcing steel is
required to cross these supports rather than the ones with
less load transfer, which occur in the supports with longer
span.

Answer / subhendu chakraborty

Benduing moment in any direction is proportional to the
curvature. Now the central deflection of slab in both the
direction is same. Since the length in the shorter
direction is less than other so curvature(1/R) value is
much in the shorter direction.So the BM is much in shorter
direction,requiring to provide reinforcement in shorter
direction.

Answer / shanmuga sundari

in case of beam b.m takes place along the lenth so main bar
is provided in tat direction to resist b.m.but in case of
one way slab the bm along longer direction is too low as
compared to shorter direction so resisting this bm
distribution bar is enough.so main bar is provided in
shorter direction and also l/b ratio is greater than 2.

Answer / structural engineer

Any suspended horizontal member is designed to span between supports. Since the supports for beam is at the ends (and not on either side of the beam!!!), it is natural that the main steel is along the length.
In case of one way slab, it is supported on all four sides. It can, hence, be designed as spanning in any direction. When you have this choice, it makes sense to design it as spanning along the shorter direction since the moments would obviously be lower in the shorter direction.

Answer / naresh

For beam: Depth is more than width so we provide main bars
in longer span
For slab : Depth is lesser than width so we provide main
bars in shorter span

Answer / r.venkateshwar rao

The Bending moment in Oneway slab along shorter span is
much lesser than the longer span. It proportional to the
square of the span of the slab. Even we can have main steel
along the longer span but it leads to uneconomical.

Answer / baba

in beam the breadth is small so no need for
distributionreinforcement,but in slab load will not be
distributed like beam....

Why concrete barriers have curved surface profiles?

0 Answers  

Who designed the city of washington dc?

0 Answers  

what are the cube & Sylinder strength of concret M20,M25,M30,M35,M40,M60 ,M75,M10 ,M15

0 Answers   ABV,

how many nails in 1 kg for 1 inches?

2 Answers   Jagson, Shoba Devlopers, Sobha Developers,

what do you mean by yeild stress of a material? What will happen when hit is given to cement?

0 Answers   Gammon,

how can we determine the quantity of steel bars in a structure? is there any formula for determing the number of bars required ?

3 Answers   Nespak,

what is the cover for column,beam & footing?

6 Answers  

Suppose a new brick wall is being constructed,and the courses and not aligned horizontally,what negetives can it cause?

0 Answers   Bhel,

With reference to construction of state highways, please let me know the total Bill Of Quantities as per the following details:- 1) Subgrade - 500 mm 2) Granular Sub-Base (GSB) - 200 mm 3) Wet Mix Macadam I (WMM I) - 150 mm 4) Wet Mix Macadam II (WMM II) - 100 mm 5) Dense Bituminous Macadam (DBM) - 60 mm 6) Bituminous Crust (BC) - 40 mm Road Length is 44 Kms. Road Width is 7 mtrs. Please provide the BOQ of each layer as per Compacted Factor & Loose Factor both. Also, if possible please provide me the approximate details of total material required (all categories viz. soil, gravel, stone aggregrate, sand, bitumen etc.) as per general mix design prevailing in India. Thanks & Regards -- Rokr

0 Answers   Power Plant,

Hollow block masonry in cement mortar 1:4, 40×20×20cms in superstructure take 10sqm.I want calculation of brick sand

0 Answers  

Why are separation membranes used between concrete pavement slab and sub-base?

0 Answers  

Suppose you planning to paint newly fabricated workshop building made of structural steel of 10 tons total mass. How many litters paint primer for 1 coat and 2 coat of top coat?

0 Answers