my mz y z f Not for sale - Steel ..." INSDAG

1 AMENDMENT NO. 1 JANUARY 2012 TOIS 800 : 2007 GENERAL CONSTRUCTION IN Steel CODE OF PRACTICE(Third Revision)[(Page(iii),Section17] Insert the following new item, as appropriate: Bedding Requirement 116 (Page 6, line38) Delete the symbols Cmy,Cmz and the corresponding explanation.(Page 8, line33) Insert the following symbols and explanations after this line: Ky, Kz,KLT Moment amplification factors ( , , ) (Page 18,Table 2,col 2) Substitute d/t for D/tf for entry against Stem of a T-section, rolled or cutfrom a rolled I- or H-section .(Page 18,Table2,col 3, 4and 5) Substitute but 42 for but 42 for entries against Web of an I,H or box section .(Page 18,Table 2,Notes,last line) Substitute overall for overll .(Page 19,Fig. 2,ROLLED CHANNELS) Substitute d for h in the figure.(Page 24, ,line10) Substitute Ky,Kz for Cy,Cz .(Page 24, ,line9) Substitute KyandKz for CyandCz .(Page 24, ,line3) Substitute (Ky,Kz) for (Cmy,Cmz).)

2 (Page 25, , line19) Insert less between be and than .(Page 31, ,line6) Substitute using load factors of Table 4. for using a load factor of (Page 31, ,third sentence) Insert the following at the end: In Table 6, live load should include all post construction loads including superimposed dead loads. (Page 33,clause ,line6) Substitute m0/fy m1 for fu m0/fy m1 .(Page 34, ,line1) Substitute the following for the existing: The factored design compression,P in members shall satisfy the following requirement:P <Pd (Page 34, ,line20) Substitute m0 for m0 .Price Group 31 Not for saleAmend No. 1 to IS 800 : 2007(Page 35,Fig. 8) Insert as the title of the abscissa (x-axis).(Page 44,Table 10,col2,line3) Substitute 40 mm <tf 100 mm for 40 mm <tf 100 mm .(Page 45,Table 11,secondrow,col1and 2) Substitute the following for the existing entries:(1)(2)RestrainedFree(Page 48, ,line4) Add the following in the end: , in place of using curve c ( = ) (Page 48, ,line9, formula) Substitute the following for the existing: 1222/ 2and250250vvvvlbbtrEE (Page49, ) Substitutethe following figure for the existing as appropriate,andsubstitute Members for Numbers in the sub-title of Fig.

3 10C andsubstitute the existing title of Fig. 10 with TOPRESTRAINT CONDITIONS :(Page 53, ,line3) Substitute d/tw > 67 for d/tw 67 .(Page 54, ,secondpara) Substitute the following for the existing: In simply supported beams with intermediate lateral restraints against lateral torsional buckling, the effectivelength for lateral torsionalbuckling,LLT to be used be taken as the length of the relevant segmentin between the lateral restraints. In the case of intermediate partial lateral restraints, the effective length,LLTshall be taken as equal to times the length of the relevant segment in between the partial lateral restraints. (Page 57,Table14) Substitute LLT/ry and hf/tf for KL/r and h/tf .(Page58, , line9) Insert centre between shear and and .(Page58, Table15, col3,firstrow) Substitute Both flanges partially restrained for Both flanges fullyrestrained .2 Not for saleAmend No.

4 1 to IS 800 : 2007(Page59, ) Substitute w for and fyw for fy , wherever appearing.(Page60, ,col 1, line18from top) Substitutecr,ecr,e t for.(Page60, , col2, line52) Substitute nearly = for = tan-1dc .(Page60, , col2,line55) Substitute =dcosф (c sc st) sinф,for the existing.(Page60, ,col2,lines59 and60) Delete the lines.(Page60, , line3) Insert out between carried and in .(Page 61,Table16,last row,col1) Substitute the following for the existingfigure:(Page62, ) Substitute the following for the existing figure:NOTES1 PanelA is designed utilizing tension field action as given (b).2 PanelB is designed using simple post critical method as given (a).3 Bearing stiffener is designed for the compressive force duetobearing plus compressive force due to themomentMtfas given (Page 63,Fig. 13,Notes) Delete NOTE 2 and renumberthesubsequentNote accordingly.(Page 63, ) Substitute w for wherever appearing.

5 (Page 63, ,line13) Substitute c< for c<d .3 Not for saleAmend No. 1 to IS 800 : 2007(Page 64, ,line15) Substitute f = yield stress ratio of flange =yf250f for f = yieldstress ratio of web =yf250f .(Page 65, ,second para, line1) Insert stiffener between the words web and is .[Page 70, (c)] Substitute the following for the existing: c)For standard I or H sectionsMndz = Mdz(1 n) Mdz forn ,Mndy = Mdy forn> , Mndy= Mdy(1- n)(n + ) (Page 72,Table18) Substitute the following for the existing table:Cmy, Cmz, CmLTBending Moment Diagram(1)Range(2)Uniform Loading(3)Concentrated Load(4) 1 + s 1 1 + s + s s s 1 s 0 1 (1 ) s ( ) s h 1 1 + h0 + + h 1 h 0 1 + h(1+2 ) + h(1+2 )For members with sway buckling mode, the equivalent uniform moment factorCmy = Cmz = ,Cmz, CmLTshall be obtained according to the bending moment diagram between the relevant braced pointsMoment factor Bending axis Points braced in directionCmyz zy yCmzy yz zCmLTz zz z4 MM MhMsMh s =Ms/MhMh MhMs h=Mh/MsMyforCmyMzforCmzforCmLTNot for saleAmend No.

6 1 to IS 800 : 2007(Page 75, ,line3) Substitute the following for the existing: Vsb Vdb (Page 76, ,first sentence) Substitute the following for the existing: Design for friction type bolting, where slip resistance is required at factored design forceVsf, shall satisfy thefollowing: (Page 76, ,line14) Substitute f for f = .(Page 76, ,Note, line1) Substitute Vnsf for Vns .(Page 77, ,col1,line6,from top, formula) Substitute fybAsb( m1/ m0) for fybAsb( m1/ m) .(Page80, ,line7,formula) Substitute 2brf for 2bff .(Page89, ,first sentence) Substitute the following for the existing: Bracing members shall be made of E250B Steel of IS 2062 or of Steel having Charpy V-notch energy, E > 27J. (Page90, ,line2) Insert or of Steel having Charpy V-notch energy, E > 27J between IS 2062 and and .(Page106, ,line4, formula) Substitute yyT905 = for the existing.(Page 121,Annex B, ,line10from top, formula) Substitute фsi =iLiuih for фs =hLu.

7 (Page 121,Annex B, ,lines12,13 and16from top) Substitute hi , ui and Li for h , u and L .(Page 128,AnnexE, ,line5, formula) Substitute (LLT)2 for (LLT) .(Page 128,AnnexE, ,line30) Substitute (z2 + y2)2 for (z2 y2) .(Page 129,AnnexE, ,col1,line18from top) Insert St. Venant s before torsion .(Page 130,Table42,col 5,row7) Substitute for .(Page 129,Table42,col 6,rows5 and10) Substitute for and for ,respectively.(CED 7)Reprography Unit, BIS, New Delhi, India5 Not for sal