HomeMy WebLinkAboutCA_Calculations_170627
651 W. Galena Park Blvd., Suite 101 / Draper, UT 84020 / T (801) 990-1775 / www.vectorse.com
Project Number: U1194-075-172
June 13, 2017
Centerline Solutions
3322 South Bay Road NE
Olympia, WA 98506
ATTENTION: Bryan Underhill
REFERENCE: SEA Royal Hill Mod
11500 Puget Dr. SE., Renton, WA 98055
Structural Review of Proposed Antenna Installation
Dear Bryan,
Per your request, we have reviewed the construction drawings prepared by your office for the proposed equipment
modifications, which include the removal of (12) existing panel antennas and (6) RRU’s, and the installation of (12)
new panel antennas and (12) new RRU’s w/A2’s attached to existing mounts on the legs of an existing water tank,
divided into three sectors. We have also reviewed previous construction drawings of the antenna mounts prepared
by your office and stamped by Roger T. Alworth, S.E. at our office (CPM Project Number: 5408, latest version
stamped 1/27/16),and an accompanying structural analysis prepared by our office (Project Number: U1194-238-141,
Site name: SEA Royal Hill stamped 7/24/14), mapping sketches prepared by Excel Construction Inc. and site
photographs of the existing antenna mount assembly configuration. Please be advised as follows:
Based upon our calculations and review of the documents noted above, we conclude that the existing
antenna mounts, as detailed in the mapping documents and in the attached sketch SK-3, are adequate to
support the loads associated with the proposed antennas. Supporting calculations for the gravity and lateral
loading on the proposed antennas and mount, and an analysis of the mount components to support the
proposed loading configuration are attached.
The recommendations above are provided based upon calculations prepared by our office and information the client
provided. Verification of the existing parapet and overall building to support the proposed loading is not included in
the scope of this project A representative from Vector has not visited the site. The analysis and conclusions
described above are limited to the members included in this report only and are based on the assumption that the
structure was properly designed and constructed, and has been properly maintained per the TIA standard and
manufacturer’s specifications.
Analysis of the capacity of the existing building and foundation are not included in the scope of this analysis.
Vector Structural Engineering makes no claim as to the correctness of the original design or the current condition of
the structure, which is assumed to be in good condition, free of damage or deterioration. The contractor shall verify
the suitability of the existing mounts and the condition of the existing structure and shall notify Vector immediately
should any damage, deterioration or discrepancies between the as-built condition of the existing structure and the
assumed condition described in this report and on the construction drawings be found.
We hope this meets your needs. If you have any further questions regarding this matter, please call this office at
your convenience.
Very truly yours,
VECTOR STRUCTURAL ENGINEERING
Wells L. Holmes S.E.
Project Engineer
WLH/fcg
Enclosures 06/13/17 EXP 01/27/18
RECEIVED
08/04/2017 striplett
BUILDING DIVISION
B17003662
APPROVED
BUILDING DIVISION
By: Alan Findlay
Date: 08/25/2017
Note: This approval is for structural review only.
THIS SET OF APPROVED PLANS MUST BE ON THE JOB AT ALL
TIMES DURING CONSTRUCTION. THIS BUILDING IS NOT TO BE
OCCUPIED UNTIL AFTER FINAL INSPECTION BY THE RENTON
BUILDING DIVISION AND RECEIPT OF CERTIFICATE OF
OCCUPANCY.
APPROVAL SHALL NOT BE CONSTRUED AS THE AUTHORITY TO
VIOLATE OR CANCEL ANY PROVISIONS OF CODES, ORDINANCES,
OR OTHER REGULATIONS ENFORCED BY THIS CITY.
#N/A JOB NO.:U1194-075-172
PROJECT:SEA ROYAL HILL MOD
Design Criteria:
Code:Structural design is based on the International Building Code, 2015 Edition
Wind:Basic wind speed = 115 mph (3-second gust) per the ASCE 7-10 standard
Risk category / Structure class: IV
Wind exposure: C
Topographic category: 1
Crest height: 0 ft
Ice:0.25" radial ice @ 30 mph basic wind speed (3-second gust) per the TIA-222-G standard
Seismic:Seismic loads are based on the International Building Code, 2015 Edition and the TIA-222-G standard
Seismic importance factor, I = 1.5
Risk category / Structure class: IV
Mapped spectral response accelerations:SS =1.408g S1 =0.526g
Site class: D
Spectral response coefficients:SDS =0.939g SD1 =0.526g
Seismic design category: D
Basic seismic-force-resisting-system: Cantilever Element: Braced below its center of mass
General Notes:
1
2
3
4
5
Structural Steel:
1 All structural steel code checks based on the AISC-LRFD, 3rd Edition per the TIA-222-G standard
2 All steel pipe to be per ASTM A53 GR. B (35 KSI), U.N.O.
3 All steel rectangular tubes (HSS) to be per ASTM A500 GR. B (46 KSI), U.N.O.
4 All other structural steel shapes & plates shall be per ASTM A36, U.N.O.
5 All bolts for steel-to-steel connections shall be per ASTM F3125 GR. A325 U.N.O.
6 All bolted connections shall be tightened per the "turn-of-nut" method as defined by AISC.
7
8
The contractor shall verify dimensions, conditions and elevations before starting work. The engineer shall be
notified immediately if any discrepancies are found.
The typical notes and details shall apply in all cases unless specifically detailed elsewhere. Where no detail is
shown, the construction shall be as shown for other similar work and as required by the building code.
These calculations are limited to the structural members shown in these calculations only.
The contractor shall be responsible for compliance with local construction safety orders. Approval of shop
drawings by the architect or structural engineer shall not be construed as accepting this responsibility.
All structural framing members shall be adequately shored and braced during erection and until full lateral and
vertical support is provided by adjoining members.
All welding shall be performed by certified welders in accordance with the latest edition of the American Welding
Society (AWS) D1.1
All steel surfaces shall be galvanized in accordance with ASTM A123 and ASTM F2329 standards, thoroughly
coated with a zinc-rich primer, or otherwise protected as noted on the structural drawings.
Page 2 of 21
#N/A
JOB NO.:U1194-075-172
PROJECT:SEA Royal Hill Mod
SUBJECT:ANTENNA MOUNT LOADS
Label:Wind per:
On a: at 97 ft AGL Load Combinations:
TIA-222-G
ASCE 7-10
Typ. (1) sector
Other
Point Loads (N)OCT338KBU000X(N) HEX338CU0000x(N) RRU 11 B13 w/A2(N) RRU 32 B2(E) Surge ProtectorUnit Weight (lbs) 157 140.7 73 55.12 26.9
Quantity ()1 1 1 1 1
Height (Y-DIR) (in) 96 94.9 19.7 27.6 25.66
Width/Diameter (X-DIR) (in) 28.5 28.5 17 12.45 17.34
Depth (Z-DIR) [Blank if Round] (in) 7.5 6 10.5 7.41 10.25
XY Plane Projected Area (ft2)19.00 18.78 2.33 2.39 3.09
YZ Plane Projected Area (ft2)5.00 3.95 1.44 1.42 1.83
Wind Force per Unit:
X-DIR Design Wind Pressure (psf) 67.6 67.5 65.5 65.5 65.5
Z-DIR Design Wind Pressure (psf) 87.0 92.5 65.5 68.5 65.5
Unfactored:
X-DIR Wind Load (lbs) 1285 1268 152 156 202
Z-DIR Wind Load (lbs) 435 366 94 97 120
Factored: (1.0W)
X-DIR Wind Load (lbs) 1285 1268 152 156 202
Z-DIR Wind Load (lbs) 435 366 94 97 120
Seismic Force per Unit:
Unfactored:
Lateral (lbs) 265.3 237.7 123.3 93.1 45.5
Vertical (lbs) 29.5 26.4 13.7 10.3 5.1
Factored (1.0E):
Lateral (lbs) 265.3 237.7 123.3 93.1 45.5
Vertical (lbs) 29.5 26.4 13.7 10.3 5.1
Line Loads Antenna pipeVertical pipeHorizontal pipeStandoff armShape 2" Std.
Pipe
4" Std.
Pipe
3" Std.
Pipe
HSS3x3x1
/4 Steel
Length (ft)10 6 6.5 2.4
Quantity 2 1 2 2
Orientation (Axis)Y Y Z X
Weight (plf) 3.653 10.790 7.576 8.810
Total Weight (lbs) 73 65 98 42
Wind Force:
X-DIR Design Wind Pressure (psf) 38.2 31.3 35.3 65.5
Z-DIR Design Wind Pressure (psf) 38.2 31.3 35.3 65.5
Unfactored:
X-DIR Wind Load (plf) 7.6 11.7 10.3 16.4
Z-DIR Wind Load (plf) 7.6 11.7 10.3 16.4
X-DIR Wind Load (lbs) (delete value 75.6 70.4 67.0 4.1
Z-DIR Wind Load (lbs) if shielded) 75.6 70.4 3.0 38.9
Factored (1.0W)
X-DIR Wind Load (lbs) 75.6 70.4 67.0 4.1
Z-DIR Wind Load (lbs) 75.6 70.4 3.0 38.9
Seismic Force:
Unfactored:
Lateral (plf) 12.3 18.2 25.6 29.8
Vertical (plf) 1.4 2.0 2.8 3.3
Factored (1.0E):
Lateral (plf) 12.3 18.2 25.6 29.8
Vertical (plf) 1.4 2.0 2.8 3.3
Page 3 of 21
#N/A
JOB NO.:U1194-075-172
PROJECT:SEA Royal Hill Mod
SUBJECT:ANTENNA MOUNT LOADS
(ANTENNA MOUNT LOADS CONT'D)
Dead Load, D:
Total Weight of Components:Wp =731 lb
Wind Load, W:
Unfactored Wind Force:VX =3429 lb Factored: 1.0 3429 lb Wind Controls
VZ =1417 lb 1.0 1417 lb Wind Controls
Seismic Load, E:Consider Seismic: Yes
Occupancy Category: IV Fa =1.0 R =2.5 Fp,min /W= 0.422
Seismic Design Category: D Fv =1.5 ap =2.5 Fp,max /W= 2.253
Ip =1.50 SMS =1.408 z (ft)= 1.0
Site Class: D SM1 =0.789 h (ft)= 1.0 Fp, lateral /W= 1.690
Ss =1.408 SDS =0.939 z/h = 1.0
S1 =0.526 SD1 =0.526 Fp, vertical /W= 0.188
Unfactored Seismic Force:Fp,trans = 1235 lb Factored: 1.0 1235 lb
Fp,long = 1235 lb 1.0 1235 lb
Fp,vert = 137 lb 1.0 137 lb
* VX =
* VZ =
* Fp,X =
* Fp,Z =
* Fp,Y =
Page 4 of 21
#N/A
JOB NO.:U1194-075-172
PROJECT:SEA Royal Hill Mod
SUBJECT:TIA-222-G Design Wind Pressure
Label:
Basic wind speed, V: 115 mph Importance factor, I: 1.00
Basic wind speed with Ice, V: 30 mph Exposure category: C
Ice Thickness, tice:0.25 in Topographic category: 1
Structure Type:Type 5 Height of crest above surrounding terrain, H: 0 ft
Height of Structure: 97 Gust Effect Factor, Gh:1.35
Typ. (1) sector
Appurtenance (Point Loads)(N)OCT338KBU000X(N) HEX338CU0000x(N) RRU 11 B13 w/A2(N) RRU 32 B2(E) Surge ProtectorAppurtenance Elev. (ft): 97 97 97 97 97
Member Shape: Flat Flat Flat Flat Flat
Kz:1.26 1.26 1.26 1.26 1.26
Kzt:1.00 1.00 1.00 1.00 1.00
Kd:0.95 0.95 0.95 0.95 0.95
No Ice Condition:No Ice No Ice No Ice No Ice No Ice No Ice No Ice No Ice
Width/Diameter (X-DIR) (ft) 2.38 2.38 1.42 1.04 1.45
Height (Y-DIR) (ft) 8.00 7.91 1.64 2.30 2.14
Depth (Z-DIR) [Blank if Round] (ft) 0.63 0.50 0.88 0.62 0.85
qz (psf) = 0.00256KzKztKdV2I 40.4 40.4 40.4 40.4 40.4
X-DIR Appurt. Design Press. (psf): 67.6 67.5 65.5 65.5 65.5
Velocity Coefficient, C 306.3 306.3 182.7 133.80 186.35
Force Coefficient, Ca: 1.24 1.24 1.20 1.20 1.20
Aspect Ratio: 3.4 3.3 1.2 2.2 1.5
Z-DIR Appurt. Design Press. (psf): 87.0 92.5 65.5 68.5 65.5
Velocity Coefficient, C 80.6 64.5 112.8 79.6 110.2
Force Coefficient, Ca: 1.59 1.69 1.20 1.25 1.20
Aspect Ratio: 12.8 15.8 1.9 3.7 2.5
Appurtenances (Line Loads)Antenna pipeVertical pipeHorizontal pipeStandoff armShape:
2" Std.
Pipe
4" Std.
Pipe
3" Std.
Pipe
HSS3x3x1
/4 Steel
Appurtenance Elev. (ft): 97 97 97 97
Member Shape: Round Round Round Flat
Kz:1.26 1.26 1.26 1.26
Kzt:1.00 1.00 1.00 1.00
Kd:0.95 0.95 0.95 0.95
No Ice Condition:No Ice No Ice No Ice No Ice No Ice No Ice No Ice No Ice
X-DIR Dimension (ft) 0.20 0.38 0.29 2.38
Y-DIR Dimension (ft) 10.00 6.00 0.29 0.25
Z-DIR Dimension (ft) 0.20 0.38 6.50 0.25
qz (psf) = 0.00256KzKztKdV2I 40.4 40.4 40.4 40.4
X-DIR Appurt. Design Press. (psf): 38.2 31.3 35.3 65.5
Velocity Coefficient, C 25.5 48.4 37.6 306.3
Force Coefficient, Ca: 0.70 0.57 0.65 1.20
Aspect Ratio: 1.0 1.0 1.0 1.0
Z-DIR Appurt. Design Press. (psf): 38.2 31.3 35.3 65.5
Velocity Coefficient, C 32.2
Force Coefficient, Ca:1.20
Aspect Ratio:1.0
Page 5 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 1
June 12, 2017 at 11:27 AM
Antenna Mount.r3d
Y
XZ
Page 6 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 2
June 12, 2017 at 11:27 AM
Antenna Mount.r3d
N1
N2
N3
N4
N5
N6 N7
N8
N9
N10
N11
N14
N15
N16
N17
N18
N19
N20
N21
N22
A1
A2
RRU1
RRU2
A3
A4
SP1 M1M2M 3
M 4M5 M8
M9
Y
XZ
Page 7 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 3
June 12, 2017 at 11:28 AM
Antenna Mount.r3dAntenna PipeAntenna PipeAntenna PipeH o r iz o n t a lAntenna PipeH o r iz o n t a lVertical PipeH o r iz o n t a lVertical PipeAntenna PipeStandoff ArmsVertical PipeH o r iz o n t a lAntenna PipeAntenna PipeH o r iz o n t a lVertical PipeAntenna PipeAntenna PipeH o r iz o n t a lVertical PipeH o r iz o n t a lVertical PipeAntenna PipeStandoff Arms
H o r iz o n t a lAntenna PipeAntenna PipeY
XZ
Section Sets
Antenna Pipe
Horizontal
Vertical Pipe
Standoff Arms
Page 8 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 4
June 12, 2017 at 11:29 AM
Antenna Mount.r3dPIPE_3.0PIPE_3.0P IP E _3 .0
P IP E _3 .0PIPE_4.0HSS3x3x4
HSS3x3x4
Y
XZ
Page 9 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 5
June 12, 2017 at 11:29 AM
Antenna Mount.r3d
-78.5lb
-70.4lb
-73lb
-55.2lb
-78.5lb
-70.4lb
-26.9lb
Y
XZ
Loads: BLC 1, DL (Dead)
Page 10 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 6
June 12, 2017 at 11:30 AM
Antenna Mount.r3d
7.6lb/ft
7.6lb/ft
11.7lb/ft
16.4lb/ft
16.4lb/ft
217.5lb
182.9lb
94.1lb
97.3lb
217.5lb
182.9lb
119.7lb
Y
XZ
Loads: BLC 2, WLZ (Wind Z)
Page 11 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 7
June 12, 2017 at 11:30 AM
Antenna Mount.r3d
10.3lb/ft
10.3lb/ft 11.7lb/ft
642.5lb
634.2lb
152.4lb
156.4lb
642.5lb
634.2lb
202.5lb
Y
XZ
Loads: BLC 3, WLX (Wind X)
Page 12 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 8
June 12, 2017 at 11:30 AM
Antenna Mount.r3d.36.36.36.3 4 .36.3 4.23.4 4
.23.36.22.23.4 4
.36.36.3 4.23.36.36.3 4.23.4 4
.23.36.22
.4 4
.36.36Y
XZ
Code Check
( Env )
No Calc
> 1.0
.90-1.0
.75-.90
.50-.75
0.-.50
Member Code Checks Displayed (Enveloped)
Results for LC 1, 1.4DL
Page 13 of 21
Vector Structural Engineeri...
FCG
U1194-075-172
Antenna Mount
SK - 9
June 12, 2017 at 11:31 AM
Antenna Mount.r3d.05.05.05.1 0 .05.1 0.09.1 9
.09.05.03.09.1 9
.05.05.1 0.09.05.05.1 0.09.1 9
.09.05.03
.1 9
.05.05Y
XZ
Shear Check
( Env )
No Calc
> 1.0
.90-1.0
.75-.90
.50-.75
0.-.50
Member Shear Checks Displayed (Enveloped)
Results for LC 1, 1.4DL
Page 14 of 21
Company : Vector Structural Engineering June 12, 2017
11:31 AMDesigner : FCG
Job Number : U1194-075-172 Checked By: BDV
Model Name : Antenna Mount
Hot Rolled Steel Properties
Label E [ksi] G [ksi] Nu Therm (\1... Density[k/ft^3] Yield[ksi] Ry Fu[ksi] Rt
1 A36 Gr.36 29000 11154 .3 .65 .49 36 1.5 58 1.2
2 A572 Gr.50 29000 11154 .3 .65 .49 50 1.1 65 1.1
3 A992 29000 11154 .3 .65 .49 50 1.1 65 1.1
4 A500 Gr.42 29000 11154 .3 .65 .49 42 1.4 58 1.3
5 A500 Gr.46 29000 11154 .3 .65 .49 46 1.4 58 1.3
6 A53 Gr. B 29000 11154 .3 .65 .49 35 1.5 60 1.2
Hot Rolled Steel Section Sets
Label Shape Type Design List Material Design R... A [in2] Iyy [in4] Izz [in4] J [in4]
1 Antenna Pipe PIPE_3.0 Beam Pipe A53 Gr. B Typical 2.07 2.85 2.85 5.69
2 Horizontal PIPE_3.0 Beam Pipe A53 Gr. B Typical 2.07 2.85 2.85 5.69
3 Vertical Pipe PIPE_4.0 Beam Pipe A53 Gr. B Typical 2.96 6.82 6.82 13.6
4 Standoff Arms HSS3x3x4 Beam Tube A500 Gr.46 Typical 2.44 3.02 3.02 5.08
Joint Coordinates and Temperatures
Label X [ft] Y [ft] Z [ft] Temp [F] Detach From Diap...
1 N1 .5 11 3.001 0
2 N2 .5 1 3.001 0
3 N3 .5 11 -3 0
4 N4 .5 1 -3 0
5 N5 .5 7.167 3.001 0
6 N6 .5 7.167 -3 0
7 N7 .5 7.167 -3.25 0
8 N8 .5 7.167 3.25 0
9 N9 .5 4.667 3.001 0
10 N10 .5 4.667 -3.25 0
11 N11 .5 4.667 3.25 0
12 N14 .5 7.167 0.0005 0
13 N15 .5 4.667 0.0005 0
14 N16 .5 9 .0005 0
15 N17 .5 3 .0005 0
16 N18 .5 8.5 .0005 0
17 N19 .5 3.5 .0005 0
18 N20 .5 4.667 -3 0
19 N21 2.9 8.5 .0005 0
20 N22 2.9 3.5 .0005 0
21 A1 .5 10.5 3.001 0
22 A2 .5 10.5 -3 0
23 RRU1 .5 2 3.001 0
24 RRU2 .5 2 -3 0
25 A3 .5 3.5 3.001 0
26 A4 .5 3.5 -3 0
27 SP1 .5 6.167 .0005 0
Load Combinations
Description Sol... PDelta SR...B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa...
1 1.4DL Yes Y DL 1.4
2 1.2DL + 1.0Wx Yes Y DL 1.2 W...1
3 1.2DL - 1.0Wx Yes Y DL 1.2 W...-1
4 1.2DL + 1.0Wz Yes Y DL 1.2 W...1
5 1.2DL - 1.0Wz Yes Y DL 1.2 W...-1
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Page 15 of 21
Company : Vector Structural Engineering June 12, 2017
11:31 AMDesigner : FCG
Job Number : U1194-075-172 Checked By: BDV
Model Name : Antenna Mount
Load Combinations (Continued)
Description Sol... PDelta SR...B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa... B... Fa...
6 1.2DL + diag(1.0Wx ...Yes Y DL 1.2 W....7 W....7
7 1.2DL + diag(1.0Wx ...Yes Y DL 1.2 W....7 W...-.7
8 1.2DL + diag(-1.0Wx...Yes Y DL 1.2 W...-.7 W...-.7
9 1.2DL + diag(-1.0Wx...Yes Y DL 1.2 W...-.7 W....7
10 0.9DL+ 1.0Wx Yes Y DL .9 W...1
11 0.9DL- 1.0Wx Yes Y DL .9 W...-1
12 0.9DL+ 1.0Wz Yes Y DL .9 W...1
13 0.9DL- 1.0Wz Yes Y DL .9 W...-1
14 0.9DL + diag(1.0Wx ...Yes Y DL .9 W....7 W....7
15 0.9DL + diag(1.0Wx ...Yes Y DL .9 W....7 W...-.7
16 0.9DL + diag(-1.0Wx...Yes Y DL .9 W...-.7 W...-.7
17 0.9DL + diag(-1.0Wx...Yes Y DL .9 W...-.7 W....7
Envelope Member Section Forces
Member Sec Axial[lb] LC y Shear[lb] LC z Shear[lb] LC Torque[lb-ft] LC y-y Moment[lb-ft] LC z-z Moment[lb-ft] LC
1 M1 1 max 0 1 .028 3 .008 5 0 1 0 1 0 1
2 min 0 1 -.029 2 -.009 4 0 1 0 1 0 1
3 2 max 0 1 .017 3 .01 5 0 1 0 1 0 1
4 min 0 1 -.016 2 -.007 4 0 1 0 1 0 1
5 M2 1 max 0 1 .027 3 .008 5 0 1 0 1 0 1
6 min 0 1 -.028 2 -.007 4 0 1 0 1 0 1
7 2 max 0 1 .017 3 .008 5 0 1 0 1 0 1
8 min 0 1 -.016 2 -.009 4 0 1 0 1 0 1
9 M3 1 max 0 1 0 1 0 1 0 1 0 1 0 1
10 min 0 1 0 1 0 1 0 1 0 1 0 1
11 2 max 0 1 0 1 0 1 0 1 0 1 0 1
12 min 0 1 0 1 0 1 0 1 0 1 0 1
13 M4 1 max 0 1 0 1 0 1 0 1 0 1 0 1
14 min 0 1 0 1 0 1 0 1 0 1 0 1
15 2 max 0 1 0 1 0 1 0 1 0 1 0 1
16 min 0 1 0 1 0 1 0 1 0 1 0 1
17 M5 1 max 0 1 .006 3 .004 4 0 1 0 1 0 1
18 min 0 1 0 10 -.004 5 0 1 0 1 0 1
19 2 max 0 1 .001 11 .004 4 0 1 0 1 0 1
20 min 0 1 -.007 2 -.004 5 0 1 0 1 0 1
21 M8 1 max 1558.937 10 -96.904 10 701.799 4 0 1 8.69 15 -255.812 10
22 min -2355.997 3 -708.489 3 -659.214 13 0 1 -41.145 3 -1731.364 3
23 2 max 1558.937 10 -116.273 10 741.159 4 0 1 1700.825 4 0 1
24 min -2355.997 3 -734.314 3 -698.574 13 0 1 -1636.424 13 0 1
25 M9 1 max 1824.327 2 -91.515 11 638.189 12 0 1 38.947 2 -242.878 11
26 min -1026.096 11 -719.628 2 -681.198 5 0 1 -6.957 16 -1758.098 2
27 2 max 1824.327 2 -110.883 11 677.549 12 0 1 1603.619 12 0 1
28 min -1026.096 11 -745.453 2 -720.558 5 0 1 -1670.419 5 0 1
Envelope Joint Reactions
Joint X [lb] LC Y [lb] LC Z [lb] LC MX [lb-ft] LC MY [lb-ft] LC MZ [lb-ft] LC
1 N21 max 2355.997 3 740.483 3 699.506 13 0 1 1636.424 13 0 1
2 min -1558.937 10 112.693 10 -742.439 4 0 1 -1700.825 4 0 1
3 N22 max 1026.096 11 739.983 2 719.297 5 0 1 1670.419 5 0 1
4 min -1824.327 2 112.865 11 -676.631 12 0 1 -1603.619 12 0 1
5 Totals:max 3268.8 3 1137.148 1 1412.82 13
6 min -3268.8 2 731.024 10 -1412.82 4
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Page 16 of 21
Company : Vector Structural Engineering June 12, 2017
11:31 AMDesigner : FCG
Job Number : U1194-075-172 Checked By: BDV
Model Name : Antenna Mount
Envelope AISC 14th(360-10): LRFD Steel Code Checks
Member Shape Code Check Loc...... Shear Check Loc...... ... phi*P... phi*P... phi*M...phi*M...... Eqn
1 M1 PIPE_3.0 .364 3.7...2 .049 3.8...3 38176...652055748....5748.......H1-1b
2 M2 PIPE_3.0 .359 3.7...2 .047 3.8...3 38176...652055748....5748.......H1-1b
3 M3 PIPE_3.0 .440 3.2...3 .194 3.2...2 52006...652055748....5748.......H1-1b
4 M4 PIPE_3.0 .343 3.2...2 .098 3.2...3 52006...652055748....5748.......H1-1b
5 M5 PIPE_4.0 .229 4.1...2 .088 5.4...3 83097...9324010631...10631......H1-1b
6 M8 HSS3x3x4 .219 0 3 .028 2.4 z 4 96563...101016 8556 8556 ...H1-1b
7 M9 HSS3x3x4 .219 0 2 .028 2.4 y 2 96563...101016 8556 8556 ...H1-1b
RISA-3D Version 15.0.2 Page 3 [\...\...\...\...\...\...\ENG\Antenna Mount.r3d]
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#N/A
JOB NO.:U1194-075-172
PROJECT:SEA Royal Hill Mod SUBJECT:WELD GROUP ANALYSIS
WELDED CONNECTION WITH FILLET WELDS TREATED AS LINES
Description:
Geometry Results
Weld Pattern:
b (in) = 3 (parallel to x-axis)70
d (in) = 3 (parallel to y-axis) Required leg size (in) = 0.088
Actual leg size (in) =3/16
SXWELD (in2) =12.00 Stress ratio:47.2%
SYWELD (in2) =12.00
IpWELD (in3) =36.00
Lweld (in) = 12.00
Torque arm (in) = 2.12
Graphic Scale: 100%
Loads on Weld Group
Load Type: LRFD
Axial(Z) (lb) =-2356 vaxial (lb/in) =-196
ShearX (lb) =-708.489 vshearx (lb/in) =-59
ShearY (lb) =24.466 vsheary (lb/in) =2
MomentXX (ft-lb) =-41.145 vmomentxx (lb/in) =-41
MomentYY (ft-lb) =-1731.36 vmomentyy (lb/in) =-1731
Torque(ZZ) (ft-lb) =0 vtorque (lb/in) =0
vmax (lb/in) =1970
Standoff arm to base plate. By inspection, welding of base plate to tower leg is
adequate
Electrode Class
Number (ksi):
Rectangular weld group
X
Y
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N:\Logos\VectorLogo.gif
JOB NO.:U1194-075-172
PROJECT:SUBJECT:CALCULATIONS
DESIGN APPROACH LRFD
SERVICE LOAD DEFLECTION Location:
Cantilever distance: 8 ft
Allowable deflection: 1.5 %
Allowable deflection: 1.440 in
Ultimate (1.0W) deflection: 0.76 in
Service / Ultimate Ratio: 0.61 (IBC 2012 Table 1604.3 note F)
Service level deflection: 0.461 in
Check Member: 32.0%
Result:Selected member is adequate.
Note:Node N1 in RISA 3D Model
Antenna Mast Pipe
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