staad - difference between surface element, plate

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Staad question: differene !et"een surfae e#e$ent% ate

e#e$ent% and s'e## e#e$ent(

Posted by C'an)*i on Mon, Jan 23 2012 4:54 PM

Anybody can exlain t!e di""erence sur"ace ele#ent, late ele#ent, and s!ell ele#ent in Staad$ %!an&s so

#uc!' (ruce

Posted by sures'&rs'ar$a onMon, Jan 23 2012 ):00 PM

*irstly + ould li&e to &no "ro# you as to !ere did you "ind s!ell ele#ent in Staad$

-o anser to your .uery:

late can be eit!er t!ree noded or "our noded, sur"ace can be u to eig!t noded'

Plate ill !a/e to be #es!ed t!roug! a di""erent co##and, sur"ace !as t!e ro/ision "or auto #es!ing'

All t!e t!ree or "our corners o" late can be o" di""erent t!ic&ness, t!e sur"ace !as to be o" uni"or#

t!ic&ness'

%!e out ut o" late analysis gi/es result "or out o" lane #o#ent and s!ear and designs accordingly, %!eoutut o" sur"ace analysis gi/es result "or in lane #o#ent and s!ear as re.uired "or s!ear all'

Posted by +ris Sat'ia oned, Jan 25 2012 :45 AM

question: difference between surface element, plate element, and sh... http://communities.bentley.com/products/structural/structural_an

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(ruce !en,

,#ate e#e$ent ersus s'e## e#e$ent

(ot! ter#s reresent t!e sa#e t!ing in t!e S%AAD context, !ic! is, a 3noded triangular or a 4noded

.uadrilateral ele#ent to !ic! a t!ic&ness !as to be assigned as a roerty' %!is is co##only re"erred to

as a 2D "inite ele#ent' +n S%AAD, t!is ele#ent !as bot! attributes #e#brane inlane e""ect and

bending outo"lane e""ect' %!e bending e""ect can be s!ut o"" by declaring it as 676M6-% P7A-6S%86SS' %!e inlane e""ect can9t be s!ut o""'

%!ere is anot!er tye o" ele#ent in S%AAD called a solid ele#ent !ic! is a 3d "inite ele#ent' +t is s!aed

li&e a ris# or edge or a bloc& or #any ot!er s!aes t!at can be "or#ed by 4 t!ru nodes !ere no

#ore t!an 4 nodes lie in one lane'

,#ate E#e$ent erus a surfae

+" you ant #odel a structure !ic! contains a all, slab or anel tye co#onent, you !a/e to c!oices

in S%AAD :

a Model t!at anel using a collection o" indi/idual ele#ents' %!is is called a "inite ele#ent #es!' %!is is

an asse#bly o" t!e 2d triangular andor .uadrilateral ele#ents described abo/e'

b Model t!at as a single !ysical ob;ect called a Sur"ace'

e o"

ele#ents, etc' t!at is generated "ro# t!e sur"ace is based on t!e ara#eters t!at you ro/ide at t!e ti#e

o" de"ining t!e sur"ace' %!e details o" t!e #es! t!us generated are to a large extent, #as&ed "ro# t!e

user' 8esults are resented "or t!at sur"ace, not "or t!e indi/idual ele#ents t!at it is #ade u o"'

%o gi/e you an analogy, t!in& o" t!e sur"ace as a c!ess board, and t!e late ele#ent as t!e indi/idual

s.uares in t!at board' ?ou can de"ine t!e c!ess board as )4 ele#ents otion a or 1 sur"ace otion b'

Posted by C'an)*i oned, *eb 15 2012 5:32 PM


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%!an&s so #uc!' + li&e t!e ansers'

Posted by )santos') on%ue, Mar 13 2012 ):3@ AM

Dear (ruce,

i" e ta&e sur"ace ele#ent as c!ess board and late ele#ents as asse#blage o" )4 s.uare ele#ents t!en

!at !aens to inlane #o#ent M> t!at aears in outut o" sur"ace ele#ent analysis !ile only out

o" lane #o#ents Mx My are a/ilable in outut o" late ele#ent anlaysis' Bo to ;udge inlane

#o#ent o" t!e late ele#ent'

t!an&s and regards

Santos!g

Posted by S+Lose on%ue, Mar 13 2012 @:1@ AM

+n t!e ostrocessing #ode, in t!e Plate8esults Along 7ine age, cut a section t!roug! t!e all'


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regards

Santos!

Posted by ALO++S on%!u, Se 2@ 2012 5:4C PM

Dear Sirs:

an anyone tell #e !o to interret t!e results o" Sur"ace design in S%AAD' + #odeled a sur"ace !a/ing

oening and t!e rein"orce#ent su##ary #entions: Bori>ontal, /ertical and 6dge 8ebar' !at is t!e

#eaning o" t!is edge bars' "or #y result, t!e /alue is /ery !ig! @010 D+A' !at could be t!e reason "or

it$ Along, sides o" oening, it says !ori>ontal boundary ele#ent 1 1) dia''!at does it #ean$$

Also under late stress, + get ME /alue along local = and local ?' Bo to interret t!e sa#e and !y t!ere

are to ME /alues' P7' 6=P7A+-'''%!an&s in ad/ance "or suort'

Alo&


8/2/2014

staad - difference between surface element, plate

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