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PR�JECTI❑N 12. The roof panels shall have a siope between 0.25"and 1" per foot.
<br /> TRIB WIDTH 13.All steel shall be galvanized ASTM A-653 G90,A123 G45 or A153 B-3, painted ASTM A755 or use an approved
<br /> TRIB WIDTH ---� TRIBUTARY WIDTH coating complying with IBC section 2203.2. Paint inside of all embedded posts from the bottom to 12"above grade. Re"'S'°"S
<br /> Where aluminum is in contact with dissimilar metals (other than stainless, aluminized or galvanized steel)or absorbent
<br /> building materials, likely to be continuously or intermittently wet, the faying surfaces shall be painted or otherwise
<br /> ❑VERHANG seperated in accordance with the Aluminum Design Manual Section M.7.
<br /> 14.Wind velocity and Ground Snow/Live load are identified in all of the relevant tables. Roof snow loads have been
<br /> determined in accordance with ASCE7-10 Section 7.3. Ct=1.2, I= 1.0, Ce=1.0 (All exposures except B and C when
<br /> located tight among conifers)
<br /> EXISTING Ground Snow LoadApplied Roof Load (,F}'`_'-;
<br /> STRUCTURE 10 psf 10 psf LIVE OR GROUND SNOW
<br /> 20 psf 20 psf LIVE OR GROUND SNOW �`-- '
<br /> 25 psf 21 psf DESIGN ROOF SNOW LOAD �^�
<br /> PR�JECTI❑N 30 psf 25.2 psf DESIGN ROOF SNOW LOAD �`�� �
<br /> TRIB WIDTH TRIBUTARY WIDTH 35.7 psf 30.0 psf DESIGN ROOF SNOW LOAD �
<br /> TRIBUTARY -�l 42 psf 35.3 psf DESIGN ROOF SNOW LOAD �."`,�' ��
<br /> WIDTH 50 psf 42.0 psf DESIGN ROOF SNOW LOAD o 3
<br /> ���� _
<br /> DIAGRAM 60 psf 50.4 psf DESIGN ROOF SNOW LOAD �
<br /> �:` i � J
<br /> �---� �Q
<br /> WIND SPEEDS IN THE 2015 IBC ARE"ULTIMATE DESIGN WIND SPEED." ALL STRUCTURES DESCRIBED IN THIS � ?�
<br /> �`=-_
<br /> REPORT ARE DESIGNED USING PRESSURES CALCULATED FROM "ULTIMATE DESIGN WIND SPEEDS" FOR -- J�^,
<br /> RISK CATEGORY II. FOR ATTACHED STRUCTURES THE MAXIMUM MEAN ROOF HEIGHT OF THE EXISTING �'---�� '-'w�
<br /> , ��r�
<br /> STRUCTURE IS 30'. Kzt WAS ASSUMED AS 1.0 FOR ALL WIND LOADS. SITE LOCATIONS REQUIRING A [� ��,�
<br /> HIGHER Kzt VALUE (ISOLATED HILLS, RIDGES, ESCARPMENTS)WILL REQUIRE HIGHER WIND LOADS AS `'�-^" �` Z Q>-o
<br /> General Notes Z
<br /> PER ASCE7-10 SECTION 26.8 AND ARE OUTSIDE THE SCOPE OF THIS REPORT. L..�_``: �W ,�
<br /> QF-Y('i
<br /> 1. Structural design per the 2015 International Building Code basic load combinations described in �,� w w o�
<br /> NOTE: EXPOSURE B: SHALL APPLY WHEN THE GROUND SURFACE ROUGHNESS CATEGORY B (URBAN AND ��� �>��
<br /> Section 1605.3.1 and no increases are permitted for resisting wind or seismic forces. Aluminum SUBURBAN AREAS, WOODED AREAS, OR OTHER TERRAIN W/NUMEROUS CLOSELY SPACED �u��^
<br /> design in accordance with the 2015 edition of the Aluminum Associations's specifications and OBSTRUCTIONS HAVING THE SIZE OF A SINGLE FAMILY DWELLING OR LARGER) PREVAILS IN THE UPWIND �� � ��_
<br /> Chapter 20 of the IBC. Patio Covers as defined in IBC Appendix I shall be used only for DIRECTION FOR A DISTANCE OF AT LEAST 1500 FT. �
<br /> recreational, outdoor living purposes and not as carports, garages, storage rooms or habitable
<br /> rooms. Commercial Covers may be used for these purposes. Carports must have at least two EXPOSURE C: SHALL APPLY WHEN EXPOSURE B AND D (SMOOTH MUD FLATS, SALT FLATS, UNBROKEN ICE `'S�� �N�i
<br /> opens sides and have floor surfaces made of approved noncombustible material or asphalt. AND OTHER) DO NOT. Q �,.�G SFO F�
<br /> 2.At least one horizontal dimension (projection or width)of cover shall be less than 30'. SEISMIC LOADING: ,`�Q.E� PR�FFsS
<br /> 3. Concrete will meet the durability requirements of ACI-318-14 and have a minimum compressive MAXIMUM Ss- 150% SHOWN IN 2015 IBC FIGURE 1613.3.1(1) � �NG�NEFq �02 P-11214
<br /> strength (fc)of 2500 psi. Patio structures may be attached to concrete slab without footings Ss>150%ARE NOT REQUIRED AS PER ASCE7-10 12.8.1.3 � 7258 P O
<br /> when the post load is 750 Ibf or less and the frost depth is zero. Concrete shall be set back a S1 NOT APPLICABLE TO THESE STRUCTURES
<br /> minimum of 4"from edge or expansion joint of a slab. Posts attached on slab will conform to SITE CLASS - D C TF pF \0 �
<br /> Details LA35, MU100 or MU102. BASIC SEISMIC FORCE RESISTNG SYSTEM
<br /> 4. Each application shall show a complete plot plan of the property and buildings. Circle the post � ORE ON � P . P��r;�.,
<br /> POSTS EMBEDDED INTO FOOTINGS =ORDINARY STEEL MOMENT FRAME » R=1.
<br /> spacing, span, etc., in the tables that fit that particular job. POSTS SURFACE MOUNTED = GENERIC SYSTEM » R- 1.25 C',9 �y 3 2�P� �� t w,.�.�'fr��t'
<br /> 5. Each installation shall bear an identifying decal giving the name and address of mfgr., live or A� p -(N ;:'� ; i;
<br /> snow load, design wind speed and exposure and ICC ESR number. ANALYSIS PROCEDURE= EQUIVALENT LATERAL FORCE PROCEDURE
<br /> These roofs are not subject to maintainance workers and have not been evaluated for a 300 Ibf concentrated load. " � �
<br /> 6. Light gauge steel shall be per ASTM A653 unless otherwise specified. Grade will be specified Maximum mean roof height of existing structure for attached units is 30'. EXPIRES:DEC 3 2018
<br /> under individual details. Thickness is bare steel. Negative thickness tolerance is-5%. 15. The width of single span attached solid cover structures must be at least 100% of the projection. �. > 660.
<br /> 7. Alternate alum. alloys may be substituted for those specified provided they are referenced in the � �rF� �,o ,.:� r
<br /> 16. Multiple span units are allowed. ��. �.S�YR"
<br /> 2015 ADM with equal or greater guaranteed minimum properties (Ftu, Fty, Fcy and E). F 1 201 I'S"s•rr� ��`��
<br /> 17. All structures must comply with one of the following: .�.�,i.�-
<br /> Thickness indicated is bare metal and negative tolerance must comply with ANSI H35.2. 3004 a. All structures with a roof snow load of 30 psf or less may be built in Seismic Design Category (SDC)
<br /> H24 may be subsituted for 3004 H34. o A-D up to the maximum Ss noted in General Note#14.
<br /> 8. Lag screws shall be placed in holes prebored 70/o diam. For concrete block construction, place b. Structures with flat roof design snow loads over 30 psf complying with IBC Section 1613.1 Exception#1 Cart PutnaM, P.E,
<br /> masonry anchors as per the installation instructions. 3aa1 IVYLINK PLACE
<br /> do not require additional seismic analysis. �YNCHsuR�, VA 24503
<br /> 9. Drainage which otherwise would go over a public sidewalk shall be collected and diverted under c. Structures not complying with (a)or(b) must have constrained footings and are limited by the Ss CARLPUTNAM@C❑MCAST,NET
<br /> sidewalk.
<br /> 10. Structures may not be enclosed unless additional engineering is provided or by approval of the shown in Sections 2.0 or 5.0.
<br /> local building authority. 18.All aluminum and steel solid panels are class A fire rated as indicated in IBC Section 1505.2 Exception#2.
<br /> 11. A geotechnical investigation is not necessary unless required by 1803.2 of the 2012 IBC. Soil is 19. All screws are self drilling (SDS)or sheet metal (SMS) and in conformance with ICC ESRs 1271, 1408, 1976. 2196, °ra'"^ �'" cMP
<br /> assumed to be Class 5 of Table 1806.2 of the 2015 IBC. Bearing 1500 psf vert., 100 psf/ft. horiz 3006, 3215, 3223, 3294, 3332, 3528, 3558, or equivalent and use head diameters equal to#8=16",#10=8",#12=32"and cn� e�
<br /> CMP
<br /> and doubled as per 1806.3.4. These design values do not apply to mud, organic silts, organic #14=2'or steel washers with similar diameters. All bolts are ASTM A307. All wood screws must comply with o�e
<br /> clays, peat or unprepared fills and may require further soil investigation. The building official may ANSI/ASME Standard 618.6.1 and AWC NDS-2015 11.1.5. All lag screws must comply with ANSI/ASME B18.2.1 and
<br /> assign a load bearing capacity. Units in a snow load area of 25 psf or less may be built on 1000 AWC NDS 11.1.4. All washers are ASTM F844 w/Dimensions complying with ASME B18.22.1 Type A. Steel nuts to F1°"0 MUSAGNOI.DWG
<br /> psf bearing soil w/o additional engineering. Minimum footing depth is the local frost depth. be ASTM A563. The minimum washer diameter for bolted connections is 1". All fasteners will have a minimum edge �,,, pa9e �
<br /> _ distanc of 2x the fastener diameter.
<br /> Four Seasons ICC ESR 1953(2015 IBC) 1/26/2017 Page 1 of 98
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