HomeMy WebLinkAboutMISC LETTERSW. W. Schaefer Engineering & Consulting,
74801500i Court North
Palm Beach Gardens, FL 33418
Phone(561)744-3424
May 9, 2018
SCANNED
Hopes Windows, Inc. BY
84 Hopkins Ave. Wit. Lucie County
Jamestown, NY 14702-0580
Attn: Ryan Carlson
P.A. (CA #6809)
RECEIVED
MAY 1 1 2018
ST. Lucie County, Permitting
Re: Window mullions for the St. Lucie Catholic Church, 280 SW Prima Vista Blvd., Port St.
Lucie, Florida
Issue: There has been a request for mullion back-up calculations and there is concern over the
engineers mark-ups that exist on the previously certified window unit prints.
Attached are the back-up calculations that show the mullions to be more than sufficient to
support ,he windows and their pressures.
Note that it is customary for an engineer to place hand written comments on a document
prepared by others, copy that marked up document and then seal the copies. This.is acceptable
by all FBP-E rules with respect to sealed documents. It is very easy to tell the difference between
a signed dud sealed copied document and one that has been signed and sealed and then modified.
The blue stamp and signature make it obvious that the document is the original sealed by the
engineer and if the document were to be modified after the fact, it is easy to tell the difference
between comments that are part of the copy and those that were penned in after being copied and
sealed.
Please know that the original sealed prints are those as marked up by the engineer who sealed the
document (me).
If there are any questions, please call.
Sincerely,
, P.E.
i®,t�'b STA'rEnF �'4w
o
-ONAL SOW'
fir ?A
MAY 0 9 2018
MULLION FORMULAS
E (psi)
Fb (psi)
MULLION LENGTH (L) (in.)
LOAD WIDTH (W) (in.)
Ix (in.4)
Sx (in.3)
ALLOWABLE MOMENT (M) (in. -lb.)
ALLOWABLE DEFLECTION (D) (in.)
LINIER LOAD W1 (lb./in.)
PRESSURE P1 (psf)
END REACTION R1 (Ibs.)
LINIER LOAD W2 (Ib.fin.)
PRESSURE P2 (psf)
END REACTION R1 ((bs.)
2 SPAN BEAM
E (psi)
Fb (psi)
MULLION SP\DEFLE
LOAD WIDT
Ix (in.4)
Sx (in.3)
ALLOWABLE (M) (in. -lb.)
ALLOWABLEION (D) (in.)
LINIER LOAD W1 (Ib./in.)
PRESSURE P1 (psf)
END REACTION R1 (Ibs.)
LINIER LOAD W2 (lb./in.)
PRESSURE P2 (psf)
END REACTION R1 (Ibs.)
Fb (psi)
MULLION LE TH (L) (in.)
Ix (in.4)
Sx (in.3)
ALLOWABLE MOMENT (M) (in.-Ib.)
ALLOWABLE DEFLECTION (D) (in.)
29000000
23600
102.5
39.5
4.22
2.1
49560
0.569444444
48.48725159
176.7636514
2484.971644
3�-
137.5748191
1934.04878
/ 66
28
0.108
0.171
3411.45
2.2
23.37732437
240.4524792
771.4517041
6.265289256
64.44297521
206.7545455
29500000
21600
100
0.766
0.766
16545.6
0.277777778
2xif srr-FL
,94LobJ90L� �.o'�.
`se11111110
�>��v1.•SC j
`� Q ,.•�pENSr•.,•
44135
STATE F
,0;'e. �iO P'ftic
9.2018
W.W. SCHAEFER ENGINEERING
& CONSULTING, P.A. (CA #6809)
PALM GMUDEENNS�LL3 418
IF
MULLION FORMULAS
E (psi)
29000000
Fb (psi)
23600
MULLION LENGTH (L) (in.)
102.5
LOAD WIDTH (W) (in.)
45.75
�Z X y Q y 2
Ix (in.4)
2.67
Sx (in.3)
1.333
/yJ uL4/ 0/-1
ALLOWABLE MOMENT (M) (in. -lb.)
31458.8
ALLOWABLE DEFLECTION (D) (in.)
0.569444444
LINIER LOAD W1 (Ib./in.)
30.67795302
PRESSURE P1 (pso
96.56011442
END REACTION RI (lb&)
1572.245092
LINIER LOAD W2 (lb./in.) 23.95435098
PRESSURE P2 (pso c5.39730145 ji GC.O �J Q. P
END REACTION R1 (Ibs.) 1227.660488
E (psi) T28
0
Fb (psi)
MULLION AN (L) (in.)
LOAD WID (W) (in.)
Ix (in.4) 0.108
Sx (in.3) 0.171
ALLOWABLE MO ENT (M) (in. -lb.) 3411.45
ALLOWABLE DEFL CTION (D) (in.) 2.2
LINIER LOAD W1 (lb.! ) 23.37732437
PRESSURE P1 (pso 240.4524792
END REACTION R1 (Ibs.) 771.4517041
LINIER LOAD W2 (lb./in.) 6.265289256
PRESSURE P2 (pso 64.44297521
END REACTION R1 (Ibs.) 206.7545455 t%%j%llllJjJyXY 09.2018
POINT LOAD AT DLE �� Q.•'�CGENS%- %
E (psi) 29500000 a d'
Fb (psi) 21600 NQ, 4Al 0
MULLION L GTH (L) (in.) 100
t
Ix (in.4) 0.766 �90�; :, SETA �Op, •_�`�
Sx (in 0.766 �i� FS,S�• . ��
AL WABLE MOMENT (M) (in. -lb.) 16545.E 'oj/ r (I' y�� F� `-
ALLOWABLE DEFLECTION (D) (In.) 0. 777777E / • • r ''
W.W. SCHAEFER ENGINEERING
& CONSULTING, P-A. (CA,86809)
7480 RTH
PALM13EACHGAR
DENS, 33418
W. W. Schaefer Engineering & Consulting, P.A.
7480 1500Court North
Palm Beach Gardens, FI, 33418
Phone (561)744-3424
May 9, 2018
Hopes Windows, Inc.
84 Hopkins Ave.
Jamestown, NY 14702-0580
Attn: Ryan Carlson
(CA #6809)
RECEIVED
MAY 1 1 2018
Sr. Lucie County, Permitting
Re: Window mullions for the St. Lucie Catholic Church, 280 SW Prima Vista Blvd., Port St.
Lucie, Florida
Issue: There. has been a request for mullion back-up calculations and there is concern over the
engineers mark-ups that exist on the previously certified window unit prints.
Attached are the back-up calculations that show the mullions to be more than sufficient to
support the windows and their pressures.
Note that it is customary for an engineer to place hand written comments on a document
prepared by others, copy that marked up document and then seal the copies. This is acceptable
by all FBPE rules with respect to sealed documents. It is very easy to tell the difference between
a signed and sealed copied document and one that has been signed and sealed and then modified.
The blue stamp and signature make it obvious that the document is the original sealed by the
engineer and if the document were to be modified after the fact, it is easy to tell the difference
between comments that are part of the copy and those that were penned in after being copied and
sealed.
Please know that the original sealed prints are those as marked up by the engineer who sealed the
document (me).
If there are any questions, please call.
Sincerely,
.E.
� ' srA'r; nF Q:
r`r'A;ytegWN
MAY 0 9-2018
i
MULLION FORMULAS
E (psi)
Fb (psi)
MULLION LENGTH (L) (in.)
LOAD WIDTH (W) (in.)
Ix (in.4)
Sx (in.3)
ALLOWABLE MOMENT (M) (in: Ib.)
ALLOWABLE DEFLECTION (D) (in.)
LINIER LOAD W1 (Ib.An.)
PRESSURE P1 (pso
END REACTION R1 (Ibs.)
LINIER LOAD W2 (Ib.fin.)
PRESSURE P2 (pso
END REACTION R1 (Ibs.)
2 SPAN BEAM
E (psi)
Fb (psi) -
MULLION SP\DEFLE
LOAD WIDTH
Ix (in.4)
Sx (in.3)
ALLOWABLE
ALLOWABLE
LINIER LOAD W1 (Ibdin.)\
PRESSURE P1 (psf
END REACTION R1 (Ibs.)
LINIER LOAD W2 (Ib./in.)
PRESSURE P2 (pso
END REACTION R1 (Ibs.)
E (psi)
Fb (psi)
MULLION LE TH (L) (in.)
(in: Ib.)
(D) (in.)
Ix (in.4)
Sx (in.3)
ALLOWABLE MOMENT (M) (in -1b.)
ALLOWABLE DEFLECTION (D) (in.)
29000000
23600
102.5
39.5
4.22
2.1
?Kv srFt
49560
ua,E lhvcL./O,✓
0.569444444
48.48725159
176.7636514
2484.971644
37�` 137.5748191 ,4 o L 0 W 9 C3 L�E 10, 06•
1934.04878
101
/ 66
28
0.108
0.171
3411.45
2.2
23.37732437
240.4524792
771.4517041
6.265289256
64,44297521
206.7545455
29500000
21600
100
0.766
0.766
16545.6
0.277777778
``�N4 dS Cp
_ gyp• 44135
sue.
r0 STATE F
4e0FS,�' o,.F"ti
2018
W-W. SCHAEFER ENGINEERING
& CONSULTING, P.A, (CA 416809)
PALM BEACH GARDENS,FL333418
MULLION FORMULAS
E (psi)
29000000
Fb (psi)
23600
MULLION LENGTH (L) (in.)
102.5
LOAD WIDTH (W) (in.)
45.75
Ix (in.4)
2.67
Sx (in.3)
1.333
ALLOWABLE MOMENT (M) (in. -lb.)
31458.8
ALLOWABLE DEFLECTION (D) (in.)
0.569444444
LINIER LOAD W1 (lb./in.)
30.67795302
PRESSURE P1 (pso
96.56011442
END REACTION R1 (Ibs.)
1572.245092
LINIER LOAD W2 (lb./in.) 23.95435098
PRESSURE P2 (pso 5.39730145
END REACTION R1 (Ibs.) 1227.660488
E (psi)
101009lf0
Fb (psi)
19 50
) (in.)
MULLIONVn3
66
LOAD WID (in.)
28
Ix (in.4)0.108
Sx (in.3)0.171
ALLOWABENT (M) (in. -lb.)
3411.45
ALLOWABL CTION (D) (in.)
2.2
LINIER LO(Ib.T )
23.37732437
PRESSURo
240.4524792
END REAC1 (Ibs.)
771.4517041
LINIER LO(Ib.fin.)
6.265289256
PRESSURo
64.44297621
END REAC1 (Ibs.)
206.7545456
E (psi) 29500000
Fb (psi) 21600
MULLION LF.NIGTH (L) (in.) 100
Ix (in.4) 0.766
Sx (in 0.766
AL WABLE MOMENT (M) (in. -lb.) \0.
545.6
ALLOWABLE DEFLECTION (D) (in.) 77777
A )c N
%92
4c.Lo�/ 'o'A
110
Q�•••%CCN,.•
a
s t No. 441
0 9.2018
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