Give at Least 10 Advantages aasdnd 10 Disadvantages of Steel as a Structural Material

1. Give at least least 10 Advantages Advantages and 10 Disadvantages Disadvantages of steel as a structural material. Advantages 1. High Strength Strength – This means that the weight weight of structur structure e that made of steel will be small. 2. Uniformity Uniformity – Proerties Proerties of steel do not change change as aose aose to concrete concrete !. "lastici "lasticity ty – Steel follows follows Hoo#e Hoo#e$s $s law very very accurately accurately %. &uctility' can withstand withstand e(tensive e(tensive deformation deformation without failure failure under high high tensile stresses ). Toughness' steel has has both both strength strength and ductility ductility *. +aintain is strength strength inde,nitely – does not not deteriorate with age li#e timber timber and concrete -. an an be rec recyc ycle led d /. 0ery strong and e(ible ' steel framed houses are ideal in cyclonehurricane rone regions. 3. Steel has also high high strength strength to weight weight ratio as comared comared to concrete. concrete. 14.Structures can be refabricated refabricated in large sections5 &isadvantages 1. +aintenance ost ost – steel steel structures structures are are suscetible suscetible to corrosion corrosion when e(osed to air5 water5 and humidity. They must be ainted eriodically. 2. Steel has very small resistance against ,re as comared to concrete. !. 6ireroo,ng ireroo,ng ost' ost' Steel is incombustible incombustible material5 however5 its strength is reduced tremendously at high temeratures due to common ,res. %. Suscetibility Suscetibility to buc#ling' buc#ling' as the the length and and slenderness slenderness of a comressive comressive column is increase5 its danger of buc#ling increases. ). 6atigue' The strength of structural structural steel member if this member is sub7ected sub7ected to cyclic loading. *. 8rittle' Under Under certain certain conditions conditions steel steel may lose its ductility5 and brittle brittle fracture may occur at laces of stress concentration. -. Steel cannot be mold in any direction you want. 9t can only be used in forms in which sections originally e(ists. /. Has a high e(ansion rate in changing temeratures 3. Heavy and thus e(ensive to transort 14."nergy 14. "nergy intensive to roduce

2. Aside from our lecture, lecture, enumerate the dierent dierent types and properties properties of structural steel. Discuss each.

:amellar tearing – is a form of brittle fracture that may occur in certain welded 7oints Hardness – is a measure of the resistance of the material to indentations and scratching

!. AS& ;allowable ;allowable strength strength design< design< is one one of the oldest system system that is being used for the design of steel5 beams5 columns5 roof slab5 trusses etc= 9n this method design remains within the allowable stress. Hence5 in AS& a factor of safety alies to the strength of the material. So that structure will remain within the allowable stress level.

). :oo# for at least least 1) reference reference boo#s boo#s on steel design design found in in our library library.. oy there comlete title5 author and coyright year. 1. Steel Steel Structures Structures &esign &esign and and 8ehavior 8ehavior 6ourth 6ourth "dition "dition a. harles harles >. >. Salmon5 Salmon5 ?ohn ". ?ohnso ?ohnson5 n5 133* 133* 2. Advanced Advanced Analys Analysis is and &esig &esign n of Steel Steel 6rame 6rames s a. >uo @iang @iang :i5 :i5 ?in ?in'?un '?un :95 :95 244244!. Steel Steel Structur Structures es &esig &esign n using using 6"+ 6"+ a. olf olf Bindmann5 Bindmann5 +atthias +atthias Braus524 Braus52411 11 %. &esign &esign of Stee Steell Struct Structur ures es a. P. &aya &ayarat ratnam nam55 133* 133* ). Structur Structural al Steel Steel &esig &esign n Second Second "diti "dition on a. :amber :ambertt Tall5 all5 13-% 13-% *. Stee Steell S Str truc uctu turres a. 0.C. 0aDir 0aDirani5 ani5 +.+. +.+. atwan atwani513/ i513/1 1 -. Steel Steel &esign &esign for for Struct Structural ural "ngineer "ngineers s a. 8ogdan 8ogdan BuDman BuDmanovic5 ovic5 Cicho Cicholas las Eillem Eillems513 s513--/. old'f old'for ormed med Steel Steel Struct Structur ures es a. Eei Een Een Fu5 13-! 13-! 3. The behavi behavior or and and design design of steel steel struc structur tures es a. C.S. C.S. Trahai rahair5 r5 13-13-14.&esign in structural steel a. arl arl She Sherrmer5 mer5 1313-2 2 11.:oad and esistance 6actor &esign of Steel Structures a. ober obertt &isG &isGue ue55 133% 133% 12.:6& Steel &esign Second edition a. Eilli illiam am Seg Segui ui55 1333 1333 1!.Structural Steel &esign a. ?ac# ?ac# +c +cor orma mac5 c5 13/ 13/1 1 1%.&esign of Steel Structures second edition a. "dwin "dwin >aylor >aylord5 d5 harles harles >aylord5 >aylord5 13)1).8asic Steel &esign second edition a. 6ung ?en :in5 :in5 T.0 T.0.. >alambos5 >alambos5 13/4 13/4