AISC DESIGN GUIDE 11 ERTA-2012 Floor Vibrations Due to Human Activity.pdf

1、Revisions and Errata List AISC Steel Design Guide 11, 1stPrinting (Printed Copy) October 15, 2012 The following list represents corrections to the first printing of AISC Design Guide 11, Floor Vibrations Due to Human Activity. Page(s) Item 8 In Table 2.1, the Aerobics Class and Group Dancing columns

2、 should read: Aerobics Class Group Dancing f, Hz if, Hz i22.75 1.5 1.53 0.5 45.5 0.6 68.25 0.1 13 In the right column, Equation 3.8 should read: 0.6 2 (1 1.2 ) 1.232 6mcccsSSmccsskknkknkk (3.8) 17 In the right column, the second to last line should read: 3334/(12 ) mm or 12 /(12 ) in. /fteedn dn 18

3、In the left column, 11 lines from the bottom, the equation, “Dg= Ig/ 2Lj for edge girders,” should be replaced with “Dg= 2Ig/ Ljfor edge girders.” 19 In the right column, the line above Equation 4.9, “The deflections jPand gPare usually estimated using” should be replaced with “The deflections ojand

4、 gPare usually estimated using.” 21 In the left column, Figure 4.2, “B. JOIST PANEL MODE”, and “C. GIRDER PANEL MODE”, should read: B. JOIST PANEL MODE 4jj1/4Calculate (see Sections 3.5 and 3.6 if trusses or open web joists)5Calculate and 384Calculate 0.18 / and /Calculate ( / ) 2 / 3 floor width2.0

5、 for interior pjjjjsjjjjjjsj jjIwLwEIfgDISBCDD LC anels; 1.0 for edge panelsCalculate ( 1.5 if continuous)jjjjWwBLC. GIRDER PANEL MODE 4Base calculations on girder with smaller frequency.Calculate (see Sections 3.5 and 3.6 if truss or joist girder or if girder supports open web joists).5Calculate an

6、d with correct384gggggsgIwLwEI1/4ion if only one beamCalculate 0.18 / and /Use average of supported joist span lengths, if different, for For interior panel, calculate( / ) 2 / 3 floor lenggggjjggjg jfgDILLBCDD Lth1.8 if shear connected; 1.6 if not.For edge panel, calculate 2 / 3Calculate ( 1.5 if c

7、ontinuous)ggjggggCBLWwBL38 In the left column, 7thline, “j= the elastic shortening of the column or wall (and the ground if it is soft) due to axial strain” should be replaced with “c= the elastic shortening of the column or wall (and the ground if it is soft) due to axial strain”. 39 In the Notes t

8、o Table 5.3, “(2) May be reduced if, according to Equation (2.5a), damping times mass is sufficient to reduce third harmonic resonance to an acceptable level.” should be replaced with “(2) May be reduced if, according to Equation (2.5a), damping times mass is sufficient to reduce 2ndand 3rdharmonic

9、resonance to an acceptable level.” 41 In the right column, 2ndline under Example 5.3, “office building” should be replaced with “health club”. 42 In the left column, 4thline under Second Approximation, the phrase “(because sensitive occupancies are adjacent to the aerobic floor)” should be replaced

10、with “(the accel. limit of 0.05 applies to the activity floor, not to adj. areas)”. 43 In the left column, 2ndline under Example 5.4Second Floor of General Purpose Building Used for AerobicsUSC Units, “office building” should be replaced with “health club”. 43 In the left column, 4thline under Secon

11、d Approximation, the phrase “(because sensitive occupancies are adjacent to the aerobic floor)” should be replaced with “(the accel. limit of 0.05 applies to the activity floor, not to adj. areas)”. 46 In Table 6.1 the first two rows that read: Computer Systems; Operating Rooms*; Surgery; Bench micr

12、oscopes at up to 100x magnification; 8,000 200 Laboratory robots 4,000 100 should be replaced with: Residences*, Computer Systems 8,000 200 Operating rooms, Surgery, Bench Microscopes up to 100x magnification, Laboratory Robots 4,000 100 47 In Figure 6.2, two arrows are seen on the diagram without n

13、otes. The note on the upper arrow should read: Displ. = 1,000/M -in.= 250/M -mThe note on the lower arrow should read: Vel. = 50,000/M -in./sec. = 1,250/M -m/sec.47 In Figure 6.3, an arrow is seen on the diagram without a note. The note should read: () / 1 cos( / )moF tF tt2 48 The label for the hor

14、izontal axis for Figure 6.5 should read, “fnto”. 48 The label for the vertical axis for Figure 6.5 should read, “Am.” 48 In Figure 6.5, an arrow is seen on the diagram without a note. The note should read: 12( )mnoAf t 49 In Table 6.2, 3rdcolumn units, “kN (lb)” should be replaced with “kg (lb)”. 49

15、 In Table 6.2, 4thcolumn, the value for a Walking Pace steps/minute 50 (slow), “1.2” should be replaced with “1.4”. 51 In the left column, 3rdline in the first paragraph of Example 6.1SI Units, “200 in./sec.” should be replaced with “200 m/sec.” 51 In the right column, 14thline under Example 6.2, th

16、e answer, “gP= 1.09 x 10-6mm/kN” should be replaced with “gP= 1.09 x 10-6in./lb” 52 In the right column, the last paragraph should read: If slow walking, 50 steps per minute, is considered, then1.4 Hz and / 1.3 from Table 6.2, thus 1.3(9.81 84) = 1.1 kN. Then / 4.15 /1.4 2.96 and fromthe equation in

17、 Figure 6.512(om mnomnfFW FffAf 22-6 -6max10.057/ ) 2(2.96)Then0.057(1.1)(58.0 x 10 ) 3.64 x 10 m3.64 omm pfXAFm and from Equation (6.5) 53 In the left column, the top line, “V = 2fnXmax= 2(4.15)(2.68) = 69.9 m/sec” should be replaced with “V = 2fnXmax= 2(4.15)(3.64) = 94.9 m/sec”. 54 In the left co

18、lumn, the second paragraph should read: If slow walking, 50 steps per minute, is considered, then1.4 Hz and / 1.3 from Table 6.2, thus 1.3185 = 240 lb. Then / 4.03 /1.4 2.88 and fromthe equation in Figure 6.5omnofFW Fff 22-6 -6maxmax110.0602( / ) 2(2.88)Then0.060(240)(10.4 x 10 ) 150 x 10 in.150 in.and from Equation (6.4a)2 = 2 (4.03)(150) = 3,800 in./secmnomm pnAffXAFVfX