Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; qa_layer_9_from_layer_php has a deprecated constructor in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 3
of /home/abouaayt/public_html/aboutcivil/answers/qa-plugin/user-management/layer.php difference limit stress and working stress - Civil Engineering Technical Questions Answers - Ask a Civil Engineer
  • Register
0 votes
difference  limit stress and working stress
in Reinforced Concrete by  

1 Answer

0 votes
The two are design methods

working stress method:   @ the stress in an element is obtained from the working or service loads and compared with permissible stresses.

@ the method follow linear stress - strain behavior of both the materials.

@here service or working load is used in the whole design.

@ modular ratio can be used to determine allowable stresses.

@ factor of saftey are used in WS.

@ ultimate load carry capacity can not predicted.

@ drawback is result uneconomical section. And
@ now we usd mostly in temporary work.

limite state design ;method is recently used method and

@ stress here obtained from design load compared with design strength.

@ this method follow linear strain r/n ship but not linear stress.

@ the ultimate stress of a materials itself are used as allowable stresses.

@here we use partial saftey factor for material and loads are used.

@here loads assessed with reasinable probablity of occurance.
by  

Related questions

0 votes
0 answers 541 views
0 votes
1 answer 601 views
601 views asked Aug 17, 2015 in Soil Mechanics by mfby2k  

    Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • civil

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • plastic
0 votes
1 answer 470 views
470 views asked Aug 11, 2015 in Reinforced Concrete by mfby2k  

    Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • rcc
0 votes
0 answers 730 views
730 views asked Jul 3, 2015 in Reinforced Concrete by mfby2k  

    Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • reinforcement

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • beam

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • stress
0 votes
0 answers 437 views
437 views asked Nov 15, 2015 in Reinforced Concrete by nezar2010  

    Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • beams

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • civil

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • engineering

  • Warning: count(): Parameter must be an array or an object that implements Countable in /home/abouaayt/public_html/aboutcivil/answers/qa-include/qa-base.php(720) : eval()'d code on line 12
  • reinforced-concrete
...