design guide 11 revisions errata list

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Revisions and Errata ListAISC Steel Design Guide 11, 1 st Printing (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 should read:

Aerobics Class Group Dancingf, Hz i f, Hz i

22.75 1.5 1.53 0.545.5 0.6

68.25 0.1

13 In the right column, Equation 3.8 should read:

0.6 2 (1 1.2 ) 1.2

3 2 6

m cc

c sSS

m cc

s s

k k n

k k k k

nk k

(3.8)

17 In the right column, the second to last line should read:

3 3 3 4/(12 ) mm or 12 /(12 ) in. /fte ed n d n

18 In the left column, 11 lines from the bottom, the equation, D g = I g / 2 L j for edge girders,should be replaced with D g = 2 I g / L j for edge girders.

19 In the right column, the line above Equation 4.9, The deflections jP and gP are usuallyestimated using should be replaced with The deflections oj and gP are usuallyestimated using.

21 In the left column, Figure 4.2, B. JOIST PANEL MODE, and C. GIRDER PANELMODE, should read:

B. JOIST PANEL MODE

4

j

j

1/4

Calculate (see Sections 3.5 and 3.6 if trusses or open web joists)

5Calculate and

384

Calculate 0.18 / and /

Calculate ( / ) 2 / 3 floor width

2.0 for interior p

j

j j j

s j

j j j

j j s j j

j

I

w Lw

E I

f g D I S

B C D D L

C

anels; 1.0 for edge panels

Calculate ( 1.5 if continuous) j j j jW w B L


2/4

C. GIRDER PANEL MODE

4

Base 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 and with correct

384

g

g gg g

s g

I

w Lw

E I

1/4

ion if only one beam

Calculate 0.18 / and /

Use average of supported joist span lengths,

if different, for

For interior panel, calculate

( / ) 2 / 3 floor leng

g g g g j

j

g g j g j

f g D I L

L

B C D D L

th1.8 if shear connected; 1.6 if not.

For edge panel, calculate 2 / 3

Calculate ( 1.5 if continuous)

g

g j

g g g g

C

B L

W w B L

38 In the left column, 7 th line, j = the elastic shortening of the column or wall (and theground if it is soft) due to axial strain should be replaced with c = the elasticshortening of the column or wall (and the ground if it is soft) due to axial strain.

39 In the Notes to Table 5.3, (2) May be reduced if, according to Equation (2.5a), dampingtimes 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), dampingtimes mass is sufficient to reduce 2 nd and 3 rd harmonic resonance to an acceptable level.

41 In the right column, 2 nd line under Example 5.3, office building should be replaced

with health club.42 In the left column, 4 th line under Second Approximation, the phrase (because sensitive

occupancies are adjacent to the aerobic floor) should be replaced with (the accel. limitof 0.05 applies to the activity floor, not to adj. areas).

43 In the left column, 2 nd line under Example 5.4Second Floor of General PurposeBuilding Used for AerobicsUSC Units, office building should be replaced withhealth club.

43 In the left column, 4 th line under Second Approximation, the phrase (because sensitiveoccupancies are adjacent to the aerobic floor) should be replaced with (the accel. limitof 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; Benchmicroscopes at up to 100x magnification; 8,000 200

Laboratory robots 4,000 100

should be replaced with:

Residences**, Computer Systems 8,000 200


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Operating rooms, Surgery, Bench Microscopes up to 100xmagnification, Laboratory Robots 4,000 100

47 In Figure 6.2, two arrows are seen on the diagram without notes.The note on the upper arrow should read:

Displ. = 1,000/M -in.= 250/M -m

The 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( / )m oF t F t t 2

48 The label for the horizontal axis for Figure 6.5 should read, f nt o.

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( )m n o

A f t

49 In Table 6.2, 3 rd column units, kN (lb) should be replaced with kg (lb).

49 In Table 6.2, 4 th column, the value for a Walking Pace steps/minute 50 (slow), 1.2should be replaced with 1.4.

51 In the left column, 3 rd line in the first paragraph of Example 6.1SI Units, 200in./sec. should be replaced with 200 m/sec.

51 In the right column, 14 th line under Example 6.2, the answer, gP = 1.09 x 10-6 mm/kN

should be replaced with gP = 1.09 x 10-6 in./lb

52 In the right column, the last paragraph should read:

If slow walking, 50 steps per minute, is considered, then

1.4 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 from

the equation in Figure 6.5

1

2(

o m m

n o

mn

f F W F

f f

A f

2 2

-6 -6max

10.057

/ ) 2(2.96)

Then

0.057(1.1)(58.0 x 10 ) 3.64 x 10 m

3.64

o

m m p

f

X A F

m


4/4

and from Equation (6.5)

53 In the left column, the top line, V = 2 f n X max = 2 (4.15)(2.68) = 69.9 m/sec should bereplaced with V = 2 f n X max = 2(4.15)(3.64) = 94.9 m/sec.

54 In the left column, the second paragraph should read:

If slow walking, 50 steps per minute, is considered, then

1.4 Hz and / 1.3 from Table 6.2, thus 1.3

185 = 240 lb. Then / 4.03/1 .4 2.88 and from

the equation in Figure 6.5

o m m

n o

f F W F

f f

2 2

-6 -6max

max

1 10.060

2( / ) 2(2.88)

Then

0.060(240)(10.4 x 10 ) 150 x 10 in.

150 in.

and from Equation (6.4a)

2 = 2 (4.03)(150) = 3,800 in./sec

mn o

m m p

n

A f f

X A F

V f X

design guide 11 revisions errata list

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