SRKM architecture • 120 S. Buffalo St. • Warsaw, IN 46580 • [email protected]ADDENDUM #2 TO THE PLANS AND SPECIFICATIONS for the SOUTH WHITLEY COMMUNITY PUBLIC LIBRARY ADDITION 2019 ISSUED BY: SRKM ARCHITECTURE DATE: August 1, 2019 _______________________________________________________________________ ADDENDUM 2 The following changes and/or additions shall be made in the Plans and Specifications for the above project and all bids submitted on or before the date and time set for receiving bids shall be presumed to include these changes. Questions: 1. Detail 18/S2.1, how are we to Attach the 2 x 10 outriggers to the LVL? Joist hangers. Detail 16/S2.1 2” birds mouth cut on LVL. To the best of my knowledge a birds mouth notch is unacceptable unless it is supported under the full depth of the LVL, Bottom of LVL shall bear on top of existing wall framing. New roof shall step down onto existing roof. Also on sheet S5.1 where detail 16/S2.2 is called out should there not be blocking at the bearing wall to keep the LVL from rolling over? I don’t see where anything is called out. Yes, there should be 2x blocking between LVLS. 2. Attached are some additional structural specifications and testing standards for your use. Also included is a new detail 5/S2.3 to be added. 3. What is the spec for the light weight floor topping over the pan deck? The first floor slab consists of 0.6” 28 gage C deck + 2.4” concrete. A light weight concrete is acceptable with f’c = 3000 psi. 4. There appears to be no Air Conditioner size called out, it shows heating but not cooling. What size? Please see attached. 5. What sill detail do we go by for windows “A”. The elevations appear to only have a brick sill at the floor yet none of the details on A6.1 show this detail? Please see attached detail 3/A6.1. 6. Where does new roof drain pipe flow to? New pipe shall flow down chase space to pipe in basement to be connected to existing downspout drain pipe outside of building to existing drywell in alley. (Please see attached A1.2) 7. Auditorium audio/visual controls shall be contracted separately. Rough-ins shall be provided in base bid by General Contractor and Electrical Contractor to receive the audio/visual system. Rough-ins in wall framing for new boxes shall be installed. Rough-ins for electrical connections shall be installed. Please see attached E1.1. 8. Add Simpson H2.5T clips to roof rafters shown in detail 18/S2.1. 9. Print A3.1 shows ½ cdx wall sheathing and on A1.1 it shows 5/8 cdx so which is it? ½” OSB. 10. On print D1.1 note 1 and 5 do you have to have a header in these two openings? Yes, that is shown as L4 on sheet A5.1. Use an L4 at the new opening in the existing wall nearer the Circulation Desk as well. We recommend (3) 2x6s at each end of each L4 also. 11. The new 2019 panel is labeled as single phase. Per the note at the bottom of drawing E1.1, the existing electrical service to be relocated is 3 phase. Is the new system we are providing single phase or 3 phase? 3 phase.
Transcript
SRKM architecture • 120 S. Buffalo St. • Warsaw, IN 46580 • [email protected]
ADDENDUM #2 TO THE PLANS AND SPECIFICATIONS for the SOUTH WHITLEY COMMUNITY PUBLIC LIBRARY ADDITION 2019 ISSUED BY: SRKM ARCHITECTURE DATE: August 1, 2019 _______________________________________________________________________ ADDENDUM 2 The following changes and/or additions shall be made in the Plans and Specifications for the above project and all bids submitted on or before the date and time set for receiving bids shall be presumed to include these changes.
Questions: 1. Detail 18/S2.1, how are we to Attach the 2 x 10 outriggers to the LVL? Joist hangers. Detail 16/S2.1 2” birds mouth cut on LVL. To the best of my knowledge a birds mouth notch is unacceptable unless it is supported under the full depth of the LVL, Bottom of LVL shall bear on top of existing wall framing. New roof shall step down onto existing roof. Also on sheet S5.1 where detail 16/S2.2 is called out should there not be blocking at the bearing wall to keep the LVL from rolling over? I don’t see where anything is called out. Yes, there should be 2x blocking between LVLS. 2. Attached are some additional structural specifications and testing standards for your use. Also included is a new detail 5/S2.3 to be added. 3. What is the spec for the light weight floor topping over the pan deck? The first floor slab consists of 0.6” 28 gage C deck + 2.4” concrete. A light weight concrete is acceptable with f’c = 3000 psi. 4. There appears to be no Air Conditioner size called out, it shows heating but not cooling. What size? Please see attached. 5. What sill detail do we go by for windows “A”. The elevations appear to only have a brick sill at the floor yet none of the details on A6.1 show this detail? Please see attached detail 3/A6.1. 6. Where does new roof drain pipe flow to? New pipe shall flow down chase space to pipe in basement to be connected to existing downspout drain pipe outside of building to existing drywell in alley. (Please see attached A1.2) 7. Auditorium audio/visual controls shall be contracted separately. Rough-ins shall be provided in base bid by General Contractor and Electrical Contractor to receive the audio/visual system. Rough-ins in wall framing for new boxes shall be installed. Rough-ins for electrical connections shall be installed. Please see attached E1.1. 8. Add Simpson H2.5T clips to roof rafters shown in detail 18/S2.1. 9. Print A3.1 shows ½ cdx wall sheathing and on A1.1 it shows 5/8 cdx so which is it? ½” OSB. 10. On print D1.1 note 1 and 5 do you have to have a header in these two openings? Yes, that is shown as L4 on sheet A5.1. Use an L4 at the new opening in the existing wall nearer the Circulation Desk as well. We recommend (3) 2x6s at each end of each L4 also. 11. The new 2019 panel is labeled as single phase. Per the note at the bottom of drawing E1.1, the existing electrical service to be relocated is 3 phase. Is the new system we are providing single phase or 3 phase? 3 phase.
SRKM architecture • 120 S. Buffalo St. • Warsaw, IN 46580 • [email protected]
\Respectfully, Jeff Kumfer, Project Manager/Partner SRKM Architecture LLC Cc: file, attendees C:/Server/server drawings/2018-001 – South Whitley Public Library/Documents/Addendum 2.doc
END OF ADDENDUM 2
ADDITIONAL STRUCTURAL SPECIFICATIONS:
1. SOIL COMPACTION.
A. FOUNDATIONS ARE DESIGNED FOR A MAXIMUM SOIL BEARING PRESSURE OF 3000 PSF. CONTRACTOR SHALL HAVE A SOIL ENGINEER VERIFY THIS SOIL PRESSURE PRIOR TO CONSTRUCTION AND NOTIFY THE ARCHITECT OF THE ENGINEER’S FINDINGS.
B. BOTTOM OF ALL FOOTINGS SHALL HAVE BEARING CAPACITY VERIFIED PRIOR TO PLACING CONCRETE. TESTING AGENCY TO VERIFY AND REPORT PLACEMENT OF REINFORCING STEEL PRIOR TO PLACEMENT OF CONCRETE.
2. CONCRETE REINFORCEMENT.
A. ALL REINFORCING STEEL SHALL BE Fy = 60,000 PSI. NO TACK WELDING OF REINFORCING ALLOWED WITHOUT PRIOR REVIEW OF PROCEDURE WITH THE ARCHITECT. LATEST ACI CODE AND DETAILING APPLY.
B. PROTECTIVE COVERING OF REINFORCEMENT: CAST AGAINST AND PERMANENTLY EXPOSED TO EARTH 3" EXPOSED TO EARTH OR WEATHER #6 OR LARGER 2” #5 OR SMALLER 1 ½” C. MINIMUM LAP LENGTH OF REINFORCING STEEL AT SPLICES SHALL BE 32 BAR DIAMETERS OR 1'‐0"
MINIMUM UNLESS OTHERWISE NOTED.
D. PROVIDE DOWELS FOR ALL HORIZONTAL REINFORCING AT CORNERS IN WALLS AND FOOTINGS TO MAINTAIN CONTINUOUS REINFORCING.
E. SEE WALL SECTIONS FOR TYPICAL SLAB‐ON‐GRADE DETAILS.
F. COORDINATE WITH DIVISION 15 OF THE SPECIFICATIONS FOR INSTALLATION OF ALL REQUIRED SLEEVES, INSERTS, ETC.
3. CAST‐IN‐PLACE CONCRETE.
A. ALL CONCRETE SHALL HAVE THE FOLLOWING MINIMUM 28 DAY STRENGTHS: FOUNDATION CONCRETE: 3000 PSI
WALL, PILASTER, COLUMN AND SLAB CONCRETE: 4000 PSI
B. ALL PIPES, DUCTS, CONDUITS, ETC. BURIED IN SOIL THAT CROSSES FOOTINGS/FOUNDATION WALLS SHALL RUN THROUGH FOUNDATION WALL OR BELOW FOOTING (NOT THROUGH FOOTING).
C. CONTROL AND CONSTRUCTION JOINT SPACINGS AND LOCATIONS SHALL BE ESTABLISHED BY THE CONTRACTOR PRIOR TO SLAB PLACEMENT. SUBMIT A DIAGRAM OF PROPOSED JOINT LOCATIONS FOR ENGINEER'S REVIEW
D. CONTRACTOR SHALL NOT ADD WATER TO PREMIXED CONCRETE WITHOUT PRIOR APPROVAL OF ARCHITECT.
4. STRUCTURAL METAL FRAMING.
A. STRUCTURAL STEEL SHALL BE AS FOLLOWS (EXCEPT AS OTHERWISE NOTED): STRUCTURAL SHAPES ‐ ASTM A992 (Fy = 50 KSI) STRUCTURAL TUBES ‐ ASTM A500, GRADE B (Fy = 46 KSI) STRUCTURAL PIPE ‐ ASTM A501 (Fy = 36KSI) OR ASTM A53, TYPE E OR S, GRADE B (Fy = 35 KSI) STRUCTURAL CHANNELS, ANGLES, & PLATES ‐ ASTM A36 (Fy = 36 KSI)
ANCHOR BOLTS ‐ ASTM F1554, GRADE 55 (Fy = 55 KSI) B. FIELD CONNECTIONS SHALL BE BOLTED WITH 3/4" DIA. ASTM A325 BOLTS (PROVIDE STD HOLES) EXCEPT AS OTHERWISE NOTED AND WHERE WELDING IS INDICATED ON THE DRAWINGS AND IN THE SPECIFICATIONS. BEARING‐TYPE CONNECTIONS WITH THREADS IN THE SHEAR PLANE AND SNUG TIGHT ARE TO BE USED.
C. DESIGN OF TYPICAL STEEL CONNECTIONS IS DETAILED ON THE DRAWINGS. INFORM STRUCTURAL ENGINEER OF ANY CONNECTIONS NOT DETAILED.
D. BEAMS BEARING ON MASONRY REQUIRE MASONRY BEARING PLATES. REFER TO SCHEDULE.
E. LINTELS ARE REQUIRED FOR ALL MECHANICAL DUCTWORK, LOUVERS, ETC. THAT PENETRATE MASONRY WALLS. REFER TO MECHANICAL DRAWINGS FOR LOCATIONS. PROVIDE LINTELS IN ACCORDANCE WITH THE FOLLOWING SCHEDULE. COORDINATE ALL WORK WITH THE MECHANICAL TRADES. ADVISE ARCHITECT OF ANY DISCREPANCIES OR CONFLICTS PRIOR TO CONSTRUCTION OR FABRICATION. ALL BEARING SHALL BE ON GROUTED BLOCK OR CONCRETE.
LINTEL MAX WIDTH BEARING
7 1/2" x 1/2" PLATE 1’‐0” 6”
(2) 5" x 3" x 1/4" LLV 3’‐0” 6”
W8 x 10 OR (2) 7" x 4" x 3/8" LLV 5’‐4” 6”
5. METAL DECKING.
A. METAL FLOOR DECK AT CHOIR AND TOWERS SHALL BE 0.6" TYPE C DECK, GALVANIZED 28 GAGE STEEL DECK W/ 2.6" CONCRETE WITH 6x6 W1.4Xw1.4 W.W.F. (3" TOTAL THICKNESS) . FASTENERS TO SUPPORTS SHALL BE 5/8” PUDDLE WELDS IN 36/3 PATTERN, NO SIDELAP SCREW REQUIRED.
6. METAL STAIRS.
A. CONSTRUCT STAIRS AND LANDINGS TO CONFORM TO SIZES AND ARRANGEMENTS INDICATED. PROVIDE COMPLETE STAIR ASSEMBLIES INCLUDING METAL FRAMING, HANGERS, COLUMNS, HANDRAILS, BALUSTERS, BEARING PLATES, ETC.
B. COMPLY WITH NAAMM “METAL STAIR MANUAL” FOR COMMERCIAL CLASS OF STAIR AND NAAMM “METAL FINISHES MANUAL FOR ARCHITECTURAL AND METAL PRODUCTS” FOR FINISHES.
C. PROVIDE DESIGN BY INDIANA PROFESSIONAL ENGINEER FOR STRUCTURAL COMPONENTS OF STAIRS AND LANDINGS. DESIGN STAIR FOR 100 PSF LIVE LOAD PLUS 20 PSF DEAD LOAD.
7. OPEN WEB STEEL JOISTS (K SERIES).
A. ATTACH DEEP LONG SPAN OPEN WEB STEEL JOISTS AND OPEN WEB STEEL JOISTS TO SUPPORTS AS PER STEEL JOIST INSTITUTE STANDARD SPECIFICATIONS.
8. ROUGH CARPENTRY A. LUMBER FRAMING MEMBER SPECIES AND GRADE SHALL BE AS FOLLOWS: PLATES, BLOCKING AND FURRING: SPRUCE‐PINE‐FIR STUD GRADE WALL FRAMING: SPRUCE‐PINE‐FIR STUD GRADE STRUCTURAL FRAMING 2X8, 2X10 AND 2X12: SOUTHERN YELLOW PINE NO. 2 B. LAMINATED VENEER LUMBER (LVL) SHALL HAVE FB = 2600 PSI, FV = 290 PSI, E = 2.0E6 PSI
C. PLYWOOD SHEATHING SHALL HAVE THE FOLLOWING GRADE DESIGNATIONS, SPAN RATINGS, EXPOSURE DURABILITY CLASSIFICATIONS AND NOMINAL THICKNESSES:
WALL SHEATHING: APA RATED SHEATHING , PS2, EXPOSURE 1, ½” WITH THICK BUTT JOINTS U.N.O. FLOOR SHEATHING: APA RATED SHEATHING, PS2, EXPOSURE 2, 48/24 SPAN RATING, ¾” THICK TONGUE AND
GROOVE U.N.O. ROOF SHEATHING: APA RATED SHEATHING, PS2, EXPOSURE 1, 24/16 SPAN RATING, 5/8” THICK WITH BUTT
JOINTS AND CLIPS U.N.O. D. PROVIDE AND INSTALL SIMPSON CLIPS AND HANGERS AS NOTED ON DRAWINGS. E. WHERE LUMBER OR PLYWOOD IS INDICATED AS “PRESSURE TREATED” COMPLY WITH THE APPLICABLE
REQUIREMENTS OF THE AMERICAN WOOD PRESERVERS ASSOCIATIONS. TREATED ITEMS TO INCLUDE THE FOLLOWING:
WOOD FRAMING FOR ROOFING, GUTTERS, FASCIA, SOFFIT WOOD FRAMING IN CONTACT WITH CONCRETE OR LESS THAN 12” ABOVE GRADE 6. PREFABRICATED WOOD TRUSSES
A. THE CONTRACTOR SHALL FURNISH COMPLETE SHOP DRAWINGS AND ERECTION DRAWINGS INCLUDING STRUCTURAL CALCULATIONS, STAMPED BY AND INDIANA P.E.
B. DESIGN REQUIREMENTS ARE AS FOLLOWS:
ROOF DEAD LOAD SHALL BE 25 PSF ROOF UNIFORM SNOW LOAD SHALL BE 21 PSF BASIC WIND SPEED SHALL BE 115 MPH WITH EXPOSURE B MAXIMUM SNOW LOAD DEFLECTION SHALL BE SPAN/360 MAXIMUM TOTAL LOAD DEFLECTION SHALL BE SPAN/240
C. TRUSSES SHALL BE FULLY BRACED DURING AND AFTER INSTALLATION AS RECOMMENDED IN BRACING STANDARDS OF THE TRUSS PLATE INSTITUTE
STATEMENT OF STRUCTURAL TESTS AND SPECIAL INSPECTIONS Required verification and inspection/test Structural steel welding
Single pass fillet welds ≤ 5/16” Cold-formed steel decks
Identification markings Manufacturer’s certificate of compliance Inspection of welds
Reinforced concrete
Placement of reinforcing steel Inspection of formwork dimensions, location and shape Verify use of required mix design Maintenance of specified curing temperature and
techniques Sample concrete for slump, temperature, air content and
i. Live load = 60 PSF @ auditorium, 100 PSF @ lobby, 50 PSF @ offices/restrooms ii. Dead load = 55 PSF @ auditorium, 45 PSF @ lobby, 60 PSF @ offices/restrooms
b) Seismic load a. Occupancy category II, Seismic importance factor: Ie = 1 b. Mapped spectral accelerations S1 = 0.062, SS = 0.115 c. Spectral response coefficients SD1 = 0.099, SDS = 0.123 d. Soil site class D e. Seismic design category B f. Bearing wall system. Light framed wood walls with wood shear walls, R = 6.5 g. No plan or vertical irregularities h. Equivalent lateral force Procedure i. Seismic response coefficient, CS = 0.0189
c) Wind load a. 115 MPH basic wind speed b. Exposure category B c. Risk category II d. Kzt = 1 e. Wind pressures on components and cladding
i. 0.6W load case (service condition) ii. Pressures shown are in pounds per square foot. Positive pressures are towards the
surface and negative pressures are away from the surface. ZONE DESCRIPTION <10sf 20 sf 50 sf >100 sf1 Roof interior 9.6/-14.3 9.6/-13.8 9.6/-13.4 9.6/-13.1 2 Roof edge 9.6/-24.0 9.6/-20.6 9.6/-18.0 9.6/-15.5 3 Roof corner 9.6/-36.0 9.6/-27.9 9.6/-15.5 9.6/-15.5 <10 sf 50 sf 200 sf >500 sf 4 Wall interior 13.1/-14.2 11.7/-12.8 10.6/-11.7 9.8/-10.9 5 Wall corner 13.1/-17.4 11.7/-14.7 10.6/-12.4 9.8/-10.9
PAUL FUJAWA ENGINEERS 17455 DOUGLAS RD
~l-W-- SOUTH BEND, INDIANA 46635 (574) 273-5014
JOB ________________ _
SHEETNO. ________ OF ______ _
CALCULATEDBY _______ DATE _____ _
CHECKED BY J.1<._IO J.A_f'i"f'R, DATE _____ _
SCA
····· · ······ 1 l~ ............. •, ~~G~-~~~<~A~''o~ l 4
