role of columns in construction

8/10/2019 Role of Columns in Construction.....

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GROUP MEMBERSGROUP MEMBERS

Muhammad Salman 13-EE-104Muhammad Salman 13-EE-104

Naeem Gul 13-EE-120Naeem Gul 13-EE-120

Hamza Javaid 13-EE-124Hamza Javaid 13-EE-124

Noman Shabbir 13-EE-128Noman Shabbir 13-EE-128 Hafz Saiullah 13-EE-132Hafz Saiullah 13-EE-132

Moaz ari! 13-EE-13"Moaz ari! 13-EE-13"

Junaid #hmad 13-EE-140Junaid #hmad 13-EE-140


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ROLE OF COLUMNS INROLE OF COLUMNS IN

CONSTRUCTIONCONSTRUCTION


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Defnition:-

Defnition:-

he ver$i%al &u''or$he ver$i%al &u''or$(hi%h i& ree rom all &ide& $a)in* $he(hi%h i& ree rom all &ide& $a)in* $he

load o beam &lab e$%+ and $ran&er&load o beam &lab e$%+ and $ran&er&

$he load $o $he ear$h inde'enden$l, i&$he load $o $he ear$h inde'enden$l, i&%alled %olumn+%alled %olumn+


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Importance:-

Importance:-

olumn& are 'robabl,olumn& are 'robabl,$he mo&$ im'or$an$ elemen$ in$he mo&$ im'or$an$ elemen$ inbuildin* + $he, hold u' and main$ainbuildin* + $he, hold u' and main$ain

$he &$ru%$ure o buildin* . li)e bone&$he &$ru%$ure o buildin* . li)e bone&in our &)ele$on .bro)en beam orin our &)ele$on .bro)en beam or%olumn %an lead $he %olla'&e o (hole%olumn %an lead $he %olla'&e o (hole&$ru%$ure+&$ru%$ure+


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Column Structure:-Column Structure:-

# %olumn ha %olumn ha&$hree main 'ar$& (hi%h are a& ollo(/$hree main 'ar$& (hi%h are a& ollo(/

1+ he a&e1+ he a&e

2+ he Sha$2+ he Sha$3+ he a'i$al3+ he a'i$al

The Bae:-The Bae:-

Mo&$ %olumn& re&$ on aMo&$ %olumn& re&$ on around or &!uare ba&e+round or &!uare ba&e+


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The Sha!t:-The Sha

!t:-

he main 'ar$ o $hehe main 'ar$ o $he%olumn. $he &ha$. ma, be &moo$h.%olumn. $he &ha$. ma, be &moo$h.u$ed *rooved. or %arved (i$hu$ed *rooved. or %arved (i$h

de&i*n&+de&i*n&+

The Capital:-The

Capital:-

he $o' o $he %olumnhe $o' o $he %olumnma, be &im'le or elabora$el,ma, be &im'le or elabora$el,de%ora$ed+de%ora$ed+


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T"pe:-T"pe:-

Bae# on len#erne ratio:-Bae# on len#erne ratio:-1+ on* olumn 5r Slender1+ on* olumn 5r Slender

2+ Shor$ olumn2+ Shor$ olumn

3+ 6n$ermedia$e olumn3+ 6n$ermedia$e olumnBae# on hape:-Bae# on hape:-

1+ 7e%$an*le 2+ S!uare

3+ ir%ular 4+ ol,*on


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Bae# On T"pe O! Loa#in$:-Bae# On T"pe O! Loa#in$:-

1+ #9iall, loaded %olumn+2+ # %olumn &ub:e%$ed $o a9ial load andun a9ial bendin*+

3+ # %olumn &ub:e%$ed $o a9ial load andbia9ial bendin*+


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Bae# On %attern O! LateralBae# On %attern O! Lateral

En!orcement:-En!orcement:-1+ ied %olumn&

2+ S'iral %olumn&


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%roce For Contruction o!%roce For Contruction o!

Column:-Column:-1. Foundation:-1. Foundation:-

he %on&$ru%$ion 'ro%e&& o ounda$ion i&he %on&$ru%$ion 'ro%e&& o ounda$ion i&a& ollo(&/a& ollo(&/

;; E9%ava$in* $he ear$h rom ounda$ionE9%ava$in* $he ear$h rom ounda$ion; a,in* %emen$ %on%re$e in ounda$ion; a,in* %emen$ %on%re$e in ounda$ion; la%in* &$eel bar ne$ in oo$in* a& 'er; la%in* &$eel bar ne$ in oo$in* a& 'er

de&i*n and al&o 'la%in* ver$i%al bar& ode&i*n and al&o 'la%in* ver$i%al bar& o%olumn in oo$in* on $he &$eel bar ne$ a&%olumn in oo$in* on $he &$eel bar ne$ a&'er de&i*n+'er de&i*n+


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;; a,in* orm (or) in oo$in*+a,in* orm (or) in oo$in*+

;; a,in* %emen$ %on%re$e 1/ 2/4 or 1/1-1


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he 'ro%e&& o %on&$ru%$ion i&he 'ro%e&& o %on&$ru%$ion i&ollo(in*+ollo(in*+

;; ie u' all rin*& around and in$oie u' all rin*& around and in$o

ver$i%al &$eel bar& a%%ordin* $o de&i*n+ver$i%al &$eel bar& a%%ordin* $o de&i*n+;; =i9 orm (or) o re!uired &ize (i$h=i9 orm (or) o re!uired &ize (i$h

ver$i%al &$eel bar&+ver$i%al &$eel bar&+; a, %emen$ %on%re$e in orm (or); a, %emen$ %on%re$e in orm (or)a%%ordin* $o de&i*n+a%%ordin* $o de&i*n+

;; a)e 'ro'er %urin* o 7 %olumn+a)e 'ro'er %urin* o 7 %olumn+


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T"pe o! Rein!orcement For

Column &n# TheirRe'uirement:-

1. Longitudinal Reinforceent:-

Minimum area o %ro&&-&e%$ion olon*i$udinal bar& mu&$ be a$ lea&$ 0+8> o*ro&& &e%$ion area o $he %olumn+

Ma9imum area o %ro&&-&e%$ion o

lon*i$udinal bar& mu&$ no$ e9%eed "> o$he *ro&& %ro&&-&e%$ion area o $he%olumn+


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he bar& &hould no$ be le&& $han12mm in diame$er+

Minimum number o lon*i$udinal

bar& mu&$ be our in re%$an*ular%olumn and " in %ir%ular %olumn+

S'a%in* o lon*i$udinal bar&mea&ure& alon* $he 'eri'her, o a%olumn &hould no$ e9%eed 300mm+


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()() Tran*ere Rein!orcement:-

6$ ma,be in $he orm o la$eral $ie& or&'iral&+

he diame$er o $he la$eral $ie& &hould no$be le&& $han 1


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+) ,elical Rein!orcement:-

he diame$er o heli%al bar& &houldno$ be le&& $han 1


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Pitc" #"ould not %e le## t"an&

2@mm3 9 diame$er o heli%al bar

i$%h &hould no$ e9%eed i heli%al

reinor%emen$ i& no$ allo(edLea#t lateral dien#ion

1" 9 diame$er o lon*i$udinal bar

&maller300mm


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Claical Form O! Column:-Claical Form O! Column:-

Some o $heSome o $he%la&&i%al orm& o %olumn are a& under/%la&&i%al orm& o %olumn are a& under/

1+Aori% order

2+u&%an order3+6oni% order

4+orin$hian order

@+om'o&i$e order"+Solomoni%


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role of columns in construction

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