7/24/2019 Advantages and Disadvantages of Steel as a Structural Design Material

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ADVANTAGES AND DISADVANTAGES OF STEEL AS A STRUCTURAL DESIGN MATERIALThe following advantages in geneal !a" #e $edited to steel as a st%$t%al design!ateial&

'( )igh stength*weight atio( Steel has a high stength*weight atio( Th%s+ the deadweight of steel st%$t%es is elativel" s!all( This ,o,et" !a-es steel a ve" atta$tivest%$t%al !ateial foa( )igh.ise #%ildings#( Long.s,an #idges

$( St%$t%es lo$ated on soft go%ndd( St%$t%es lo$ated in highl" seis!i$ aeas whee fo$es a$ting on the st%$t%e d%e toan eath/%a-e ae in geneal ,o,otional to the weight of the st%$t%e(

0( D%$tilit"( As dis$%ssed in the ,evio%s se$tion+ steel $an %ndego lage ,lasti$defo!ation #efoe fail%e+ th%s ,oviding a lage eseve stength( This ,o,et" isefeed to as d%$tilit"( 1o,el" designed steel st%$t%es $an have high d%$tilit"+ whi$h isan i!,otant $haa$teisti$ fo esisting sho$- loading s%$h as #lasts o eath/%a-es( Ad%$tile st%$t%e has eneg".a#so#ing $a,a$it" and will not in$% s%dden fail%e( It%s%all" shows lage visi#le de2e$tions #efoe fail%e o $olla,se(

3( 1edi$ta#le !ateial ,o,eties( 1o,eties of steel $an #e ,edi$ted with a high degeeof $etaint"( Steel in fa$t shows elasti$ #ehavio %, to a elativel" high and %s%all" well.de4ned stess level( Also+ in $ontast to einfo$ed $on$ete+ steel ,o,eties do not$hange $onsidea#l" with ti!e(

5( S,eed of ee$tion( Steel st%$t%es $an #e ee$ted /%ite a,idl"( This no!all" es%lts in/%i$-e e$ono!i$ ,a"o6(

7( 8%alit" of $onst%$tion( Steel st%$t%es $an #e #%ilt with high./%alit" wo-!anshi, andnaow tolean$es(

9( Ease of e,ai( Steel st%$t%es in geneal $an #e e,aied /%i$-l" and easil"(

:( Ada,tation of ,efa#i$ation( Steel is highl" s%ita#le fo ,efa#i$ation and !ass,od%$tion(

;( Re,etitive %se( Steel $an #e e%sed afte a st%$t%e is disasse!#led(

7/24/2019 Advantages and Disadvantages of Steel as a Structural Design Material

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5( S%s$e,ti#ilit" to #%$-ling( D%e to high stength*weight atio+ steel $o!,ession!e!#es ae in geneal !oe slende and $onse/%entl" !oe s%s$e,ti#le to #%$-lingthan+ sa"+ einfo$ed $on$ete $o!,ession !e!#es( As a es%lt+ $onsidea#le !ateials!a" have to #e %sed ?%st to i!,ove the #%$-ling esistan$e of slende steel $o!,ession!e!#es(