HomeMy WebLinkAboutN2022-0034 - Alternative Material & Methods-aosy
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,o�� °R @ CITY OF NEWPORT BEACH
COMMUNITY DEVELOPMENT DEPARTMENT �C
l .) BUILDING DIVISION 2
o ` 100 Civic Center Drive I P.O. Box 1768 1 Newport Beach, CA 92658-8915
0 www,newnortbeachca.00v 1 (949) 644-3200
r � r UITY Op
CASE NO.:�''�
FOR STAFF USE ONLY
® REQUEST FOR MODIFICATION TO PROVISIONS
OF TITLE 9 CODE) OR TITLE 15 CODE)
Plan Check # 1 # of Stories
(FIRE (BUILDING
OF THE NEWPORT BEACH MUNICIPAL CODE g
Occupancy Classification �)
(See Reverse for Basis for Approval) (Fee $ lal
Use of Building it; ota ,16, # of Units I
Project StatusAO\
❑ REQUEST FOR ALTERNATE MATERIAL
Construction Type b'�',
OR METHOD OF CONSTRUCTION
Verified by 3 /. r G
(See Reverse for Basis for Approval) (Fee $291)
No. of Items
-Z-
Fee due c� I
For above requests, complete Sections 1, 2 8 3
DISTRIBUTION:
below by printing in ink or typing.
El owner ElPlan Check
'0 Petitioner ❑ Inspector
❑ Fire ❑ Other
JOB ADDRESS:
PETITIONER:
SITEADDRESS: 13 LINDA ISLE
Petitioner PLAMEN PETROV, P.E.
Owner MIKE & KAREN MORON
(Petitioner to he erchitecfor engineer)
Address 13 LINDA ISLE
Address 28161 CASITAS CT.
NEWPORT BEACH, CA Zip 92660
LAGUNA NIGUEL, CA Zip 92667
Daytime Phone ( )
Daytime Phone ( 714 ) 717-7542
Email: CONSULTING(o.PMA-BG.COM
2 REQUEST: Submit plans if necessary to illustrate request. Additional sheets or data may be attached.
ZTrs RaPo5co7- PRovrf3&PeFsfow tc w, lago to, ccr,evn86De,Cur tgod
PLEASE SEE SUBMITTED SHEET S-2 STAMPED AND SIGNED BY THE FOR ON 12/06/22 WITH CLOUDED REVISION
DELTA 1, ILLUSTRATING EMBEDMENT OF 11'-5" FOR PILE 2 & IT-7-- FOR PILE 3.
3 JUSTIFICATIONIFINDINGS OF EQUIVALENCY:
CODE SECTIONS:
HARBOR DESIGN CRITERIA
DUE TO THE ENCOUNTERED HARD L&YER OF STRATA, PILESCOULDN'T
SECTION A.2(k)3c
BE JETTED IN TO THE REQUIRED 15'OF EMBEDMENT PER THE CURRENT CITY STANDARDS SINCE THE DEMAND FOE
EMBEDMENT ACCORDING TO THE PILE CALCULATIONS IS ONLY S-0", WE FIND THE ACHIEVED EMBEDMENTS LISTED
IN SECTION 2 ABOVE SUFFICIENT FOR A PROPER FUNCTIONING OF THE FLOATING DOCK.
Position PRINCIPAL AT PMA CONSULTING, INC.
Petitioner's
Signature CA Professional Lic. #. C66947 Date: 12/06/22
FOR STAFF USE ONLY
DEPARTMENT ACTION: In accordance with: ❑ CBC 104.11/CFC 104.9 �i'� CBC 104.10/CFC 104.8
�
(Alternate materials & methods) f CBC Modification)
❑ Concurrence from Fire Code Official is required. ❑ Approved ❑ Disapproved ❑ Written Comments Attached
(__: _ By: Date
Request (DOE DOE_ S NOT)18ssen any fie protection requirements.
Request (DOES) S-NOT-), essen the structural integrity
The Request is: Granted ❑ Denied (See reverse for appeal information)
❑ Granted (Ratification required)
Conditions of Approval: -
t
Signature--- ------__..- , Positior(l,(jFF RIRI DING OFFICIA6ete
Print Name rrr(,Z f -l-Ih_r
APPEAL OF DIVISION ACTION TO THE BUILDING BOARD OF APPEALS (See Reverse)
(Signature, statement of owner or applicant, statement of reasons for appeal and fling fees are required.)
CASHIER RECEIPT NUMBER: ,& a a175 %JV • Z02Y Farms\modif 07/01/21
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NEWPORT BAY
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25' LONG
RECREATIONAL
BOAT ASSUMED
FOR PILING DESIGN
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LINDA ISLE
l(N) 12" 50 GOES PILE
AT DOCK TO IN
(EJ PILE IN SAME
LOCATION, DTP
(3 rG AL) SFEe
PILE DESIGNATION
TM
(E) FLOATIS
Di TO REMAIN
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4. _6•
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DOCK & PILING ELEVATION
GONG
PIL DESIGNATION
l .} PILE
P
PILE PER CITY
STANDARDS ttP--
(E) GANGWAY
REMAIN
[TO
FLOATING
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DOCK TO REMAIN
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PRESTRESSED CONCRETE PILE
ALTERNATE DESIGN REQUIREMENTS °� o 0
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1) CONCRETE
UNLESS SUBSURFACE SOIL MATERIAL PREJENTS THEIR USE, PNNG SHALL BE PRE -STRESSED CONCRETE WITH A o Z
MINIMUM COMPRESSIVE STRENGTH AT 26 DAY OF 6000 P51. PORT
IANO CEMENT SHALL BE ASTM C150 TYPE 2.
WATER FOR MIXING AND CURRMG SHALL BE FRESH, CLEAN AND POTABLE, AGGREGATES SHALL CONFORM TO ASTM
C33. S1ZE NUMBER 67. AND BE FREE FROM ANY SUBSTANCE THAT IS DELETERIOUSLY REACTIVE WITH THE ALAALIS IN
THE CEMENT. ADMIXTURES. IF USED, SHALL CONFORM TO THE REQUIREMENTS OF ASTM C494 AND NOT CONTAIN
CHLORIDES. CORROSION INHIBITING CONCRETE ADMIXTURES ARE ENCOURAGED.
2) REINFORCING :
PRESTRESSING STEEL SHALL BE UNCOATED, SEVEN -WIRE STRESS RELhVED STRAND WITH MINIMUM ULTIMATE STRENGTH
OF 270 NSI CONFORMING TO ASTM A416.
TIES AND SPIRALS SHALL CONFORM TO ASTM A1064, COLD DRAWN, PILES SHALL CURE AND REACH A STRENGTH OF
NOT LESS THAN 4,000 PSI BEFORE DE -TENSIONING AND CUTOFF OF THE STRANDS.
LAPPED SPLICES IN SPIRAL PILE REINFORCING SHALL BE UPPED 60 WIRE DIAMETERS MINIMUM. SPIRAL SPLICES AND
ENDS SHALL BE TERMINATED OF 135' HOOK WITH 6" TAL HOOKED AROUND STRAND.
THE GAGE OF SPIRALS SHALL BE AS FOLLOWS.
FOR PILES HAVING A DIAMETER OF 16" OR LESS, WIRE SHALL NOT BE SMALLER THAN 0.22 INCH Di GAGE).
FOR POTS HAVING A DIAMETER OF MORE THAN 16' AND LESS THAN 20". WIRE SHALL NOT BE SMALLER THAN 0.236
INCH (No.4 GAGE).
FOR PILES HAVING A DIAMETER OF 20' OR URGER. WIRE SHALL NOT BE SMALLER THAN 0.25 INCH ROUND OR 0259
INCH (No.3 GAGE).
3) FACTORED LOADS, EXCLUDING THE WEIGHT OF THE PILE, ARE PER SCHEDULE BELOW
4) DESIGN IS BASED ON THE FOLLOWING LEAD COMBINATIONS
Q% BENDING AND COMPRESSION
❑ BENDING AND LESSON
❑ OTHER, DESCRIBE
5) FLEXURAL LENGTH IS EQUAL TO 2/3 OF THE PILE LENGTH.
PILE SCHEDULE
NO OF
MADE
PILE LENGTH L
PILE EMBED INTO
DESIGN MOMENT
DESIGN
PILE NO.
ELEGIZE
STRANDS
STRANDS
in (A)
DREDGE
Mu (B Mpfi)
SHEAR VD
BLINE
min
(MP6)
1O
12' SQ.
6
)i"0
30
150
650
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SHEET OF
S-2
DOCK GANGWAY & PILING LAYOUT
N.T.S. S I CONCRETE PILES
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SHEET OF
S-2
DOCK GANGWAY & PILING LAYOUT
N.T.S. S I CONCRETE PILES
PMA Consulting, Inc.
Project: Piling Replacement
Job: 39722SS
CONSULTING STRUCTURAL ENGINEERS
13 Linda Isle
Sheet:
28161 CASITAS CT. P (714) 717 - 7542
Newport Beach, CA 92660
Design: TPP
LAGUNA NIGUEL, CA 92677
Square Concrete Pile at Floating Dock
Date: 08/03/22
1
I ne pile assign beiow, Is based on the requirements ot:
"Layout & Design guidelines for Marina Berthing Facilities - Section D" - Department of Boating
and Waterways of the State of California - July 2005 edition
"Design Criteria & Standard drawings for Harbor Construction"- City of Newport Beach - 2017 edition
hp min = 8.50 ft (applied load location above MLLW)
Dmin = min [ 15' or (dreq'd embedment + 3') ]
hcutoff = 12 ft (pile cutoff height above MLLW) .
Lpile = hcutoff + D min + hmudline
Prestressed Concrete Pile Design lq>
M= Pmax *h<=Mail
hmudline= 5.5 ft
Ins = 19.0 ft «< Arm for Pile Strength Calculation
Find (Mall) maximum Moment capacity of the pile
fc= 6000 psi »» E= 4415 ksi
(fc)max = 0.45 * fc »» (fc)max = 2700 psi
Strands per ASTM A-416
Grade = 270 ksi
»»
Fu =
270
ksi
Low relaxation ?
(Y,N)? N
»»
Fy=
0.85*Fu
p
Try, a = 12 in
»»
A =
144
inA2
Smin = (aA3 / 6) / sgrt(2)
»»
Smin =
204
inA3 - (Diagonal section modulus governs)
Ig = aA4/12
»»
Ig =
1728
inA4
Dstrand = 1/2 in
»»
Astrand =
0.153
inA2
Nstrand = 6
Mu= 80000
ft-Ibs
<<< Design Moment
12 in. sq conc pile with
6 strands
+(6)#8 supplemental strands
Pmax = Mu / h*1.6
<<< Allowable Applied Lateral Load at hs= 19.0
ft
= 2632 Ibs
_boat = 25
ft
« Boat Length
TEL= 110 plf
<< Total Env. Load
-current = 5
plf
<< Current Load
Ld = 44 ft
<< Dock Length
-dr = 12
plf
« Wave Drift Force
DL Freeboard = 1.9
ft
Dw = 15
psf
<< Wind Pressure
Papplied= ((TEL"Lboat/2'Ld)*(2"Ld-Lboat)+(Fd,-t-d-Lboat)/3)+(FcurrenC(Ld-Lboat)/3)+(PW'OLFreeboard*(Ld-Lboat)13)
= 2257 Ibs < Pmax thus O.K.
P2 &
PMA Consulting, Inw Project: Piling Replacement CONSULTING STRUCTURAL ENGINEERS
28161 CASITAS CT. 13 Linda Isle
P (714) 717 7542 Newport Beach, CA 92660
LAGUNA NIGUEL, CA 92677
Square Concrete Pile at Floating Dock
TPP
08/03/22
willueumenr td) =
Pmax = 2632 Ibs
h = 14.0 ft
b = 1.41 ft
'er section 1807.3.2.1 of CBC
d=A/2*(1+sgrt(1+(4.36*h/A)j}
A=2.34*P/(S1*b)
& S1 = Fp*d/3
Try, d = 8.5 ft
Fp = 320 psf <<< Add 3 ft to "d" per City of NB STDS
<<< 160 pcf, typ for the area, increased twice
=r section 1807.3.2.1 for (d) not over 12' deep,
& S1 <= 1280 psf
it footnote note d of table 1804.2, increase Fp by 33% for transient forces.
S1 = 1209 psf
A = 3.60 ft
•-� umus = 270 ksi
/ fc = 6000 psi Embeded 15 ft
M
=mn!nnn
Des! n Re uirements
= 0 kips
4.2 ki s