Answer / hassan bin mohsin

IT is 50d is for lapping lengthof bar , where d is diameter of rainforement bar
Not less then 45d lapping length

Answer / ramesh kumar

As per the revised IS , use commonly 37D as lap
length....50D was used before...now most of the designers
following this only...

Answer / gopalakrishnan

column 75d to 50d
beam 50d
paving and flooring 40d and 50d
tank foundation max 75d

Answer / raju gohel

in compression -45d
in tention -50d

Answer / yamir betancourt

Development lengths for deformed bars in tension are
mandated by section 12.2 of the ACI code. Factors
affdecting development length are size of bar, yied stress
of bar, 28 day compressive strength of concrete, amount of
concrete cover and wether or not the bar splice is class A
or class B splice which is covered in section 12.15 of the
ACI code.

Answer / manirajk

reinforcement use 50d d-no of rods

Answer / oliver kipkoech

52d where d is diameter of rebar

Answer / ppl

This answer is dependent on the diameter of the bar, the
strength of the concrete, the use (type of construction),
the code you're using, and the standards in the location you
wish to build it. Find the code you need for your area and
type of construction, make sure there aren't any superseding
local standards, and then look up all the rules. Many codes
(like the international building code) have half a dozen or
more.

Answer / mohsin raza gardezi

Generally it is 45 d d dia of bar
50 d d dia of bar

Answer / aman kumar gupta

it shouldnot be less than the maximum size of aggregate or the diameter of the bar also it should not exceed 3d or 300 for main reinforcement or 5d or 450 for distribution reinforcement.

neutral axis more than the critical neutral axis then rainforcement in rcc beam belong to over or under rainforcement

2 Answers  

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,

How to decide/consider the grade of bitumen for dbm.

0 Answers  

Define What happens to Load at yielding ?

0 Answers  

what is the code provision for acceptance of fineness modulus range for fine aggregates in design mix

1 Answers  

uses of M50 and M60 grade ordinary and pozzolona portland cement concrete?

1 Answers  

Bitumen grades are 30-40,60-70, 80-100. what is mean by 30- 40

10 Answers   ACC, Awasthi Construction, Bitulink, Mir Akhter Hossain, SOT,

why you have choosen civil engineering as a carrier ,what goals do u have and how you wil aschiene it?

5 Answers   L&T,

can we find any technical issue if we are gong to change the dimensions of steel beams from one type to another type IE if there are any equievelant data base to find solution for problem of changeing sectios of beam from one type to another with the same cross sectional area.

0 Answers  

what are the types of roads?what are the types of highway?

2 Answers   NG Project,

1. why more stirrups are provided near the support? 2.where more stirrups is provided in a column and why? 3.why extra bars are provided at the top of beam? 4.what is the difference between overlap and lap lenght? 5.what is development lenght

2 Answers  

What is the meaning of TMT on Steel rebars

6 Answers