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HomeMy WebLinkAboutPALISADES APPT - CITY RESPONSE 2 920 East 800 North Orem, Utah 84097 Phone 801.377.6303 www.harris-architecture.com June 12, 2023 Date of review letter : June 5, 2023 Rexburg Building Department RE: #23-00257 (Palisades Apartments) – city review 2 1.1 - Pg 1 – Contractor to submit COMM check. – should have been submitted at the time of resubmittal for city review 1. 1.2 – The engineered truss plans shall be submitted as a differed submittal. 1.3 – Cross slope has been called out at the entries to the building see A1.1 – Civil engineer to also address this item on the civil submittal. 1.4 – Owner to identify special inspector. 1.5 – Civil engineer to provide new civil engineering for new site location. 2 – A5.1 – note has been added “Or above every two dwelling units, which ever is smaller” See a5.1. 3 – SN1 – see structural engineering response. 4 – S0.0 see structural engineering response. 5 – S0.0 see structural engineering response. Regards, HARRIS ARCHITECTURE O 801.377.6303 Fax: 5/15/2023 Valid Wet Stamp In Red This addendum is for the project and location listed. It may not be reused, copied or reproduced without written consent from Acute Engineering Inc. Contact: Jared Hill Company: Harris Architecture Phone: (801) 377-6303 Fax: Prepared by: CHY/RJW BO Letter Number: 4420523 Engineering Addendum Project Name: Harris Architecture Palisades Apartments (Rexburg) 3110323 Project Location: Pioneer Rd and Mariah Ave Rexburg, Idaho 83460 Project Number: 3110323 Date: 5/12/2023 The following is in response to an email request from Jared Hill on 05/12/2023: City correction items have been addressed. 1. Special inspection requirements have been added to the plans on sheet SN2. 2. A note about waterproofing per IBC 1805 has been added to the general structural notes. 3. The city specified the reinforcement required in 4’ and 8’ tall foundation walls. Because all the foundation walls on this project are 10’ tall and have been designed per ACI318-14, no changes were made to the foundation design for this item. 744 S. 400 E. Orem, Utah 84097 Phone 801.229.9020 Fax 801.224.0050 info@acuteengineering.com 3 5 2 ) ( 6 6 , 2 1 $ / ( 1 * , 1 ( ( 5 / , & ( 1 6 ( ' 6 7 $ 7 ( 2 ) , ' $ + 2 & + 5 , 6 7 2 3 + ( 5 + , 5 2 6 + , < ( $ 7 ( 6 05/16/2023 GENERAL SOIL AND FOUNDATIONS1.Geotechnical investigations shall conform to 2018 IBC 1803. Excavation, grading and fill shall conform to 201 Footings and foundations shall be constructed in accordance with 2018 IBC 1807 through 1810.2.Where required, the owner shall submit a geotechnical investigation report to the building official in accordan IBC 1803. The contractor shall inform the registered design professional in responsible charge if the soil cond consistent with the investigation report and the foundation design data.3.Excavations for any purpose shall not remove lateral support from any footing or foundation without first unde protecting the footing or foundation against settlement or lateral translation (2018 IBC 1804.1).4.Excavation outside the foundation shall be backfilled with soil that is free of organic material, construction deb and boulders or with a controlled low-strength material (CLSM). The backfill shall be placed in lifts and compa manner that does not damage the foundation or the waterproofing or dampproofing material (2018 IBC 1804. 5.The ground immediately adjacent to the foundation shall have a 5-percent slope away from the building for a distance of 10 feet measured perpendicular to the face of the foundation wall. If physical obstructions or lot lin feet of horizontal distance, a 5-percent slope shall be provided to an approved alternative method of diverting from the foundation. Impervious surfaces within 10 feet of the building foundation shall have a minimum 2-pe (2018 IBC 1804.4).6.Footings and foundations shall be built on undisturbed soil, compacted fill material or CLSM. Compacted fill m CLSM shall conform to 2018 IBC 1804.6 and 2018 IBC 1804.7, respectively (2018 IBC 1809.2).7.The top surface of the footings shall be level. The bottom surface of footings is permitted to have a maximum slope. Footings shall be stepped where it is necessary to change the elevation of the top surface of the footin surface of the ground has more than a 10-percent slope (2018 IBC 1809.3).8.The minimum depth of footings below the undisturbed ground surface shall be 12 inches (2018 IBC 1809.4). walls, piers and other permanent supports shall be extended below the frost line, except where otherwise pro frost (2018 IBC 1809.5). 9.The placement of footings on or adjacent to 33-percent slopes and steeper shall conform to 2018 IBC 1808.7 10.Floors of basements shall be placed over base course not less than 4 inches in thickness and a drain shall be around the foundation perimeter that consists of gravel or crushed stone containing not more than 10-percen passes through a No. 4 sieve (2018 IBC 1805.4.1, 1805.4.2). 11.Backfill shall not be placed against a foundation wall until the wall has sufficient strength and is anchored to t or is sufficiently braced to prevent damage by the backfill, except bracing is not required for walls supporting feet of unbalanced backfill (R404.1.7). 12.Foundation waterproofing and dampproofing shall conform to 2018 IBC 1805. CONCRETE 1.Concrete materials, quality control, and construction shall comply with 2018 IBC Chapter 19 and ACI 318-14. 2.Compressive strength (minimum specified at 28 days) 2.1.Footings: 3,000 psi (2018 IBC 1808.8.1) (2,500 psi used in design) 2.2.Interior floor slabs on grade:3,000 psi 2.3.Exterior floor slabs on grade:4,000 psi 2.4.Suspended slabs: 4,000 psi 2.5.Walls: 3,000 psi (2018 IBC 1904.1) for R-2, R-3 occupancies and appurtenance 4,000 psi for other occupancies 3.Materials 3.1.Cements (ASTM C 150). Concrete exposed to freezing and thawing or deicing chemicals shall conform maximum water-cementitious material ratios and minimum compressive strength requirements of ACI 31 19.3.1.1 & 19.3.2.1. 3.2.Aggregates (ASTM C 33): nominal maximum size of coarse aggregate shall not be larger than 1/5 the n dimension between forms, nor 1/3 the depth of slabs, nor 3/4 the minimum clear spacing between reinfo wires, tendons, or ducts (ACI 318-14 26.4.2.1). 3.3.Water used in mixing concrete shall be potable, clean and free from injurious amounts of oils, acids, alka organic materials, or other substances deleterious to concrete or reinforcement (ACI 318-14 26.4.1.3.1.b 3.4.Admixtures shall be subject to prior approval by the registered design professional in responsible charge 26.4.1.4.1.b). 3.5.Concrete exposed to freezing and thawing or deicing chemicals shall be air-entrained with air content in 318-14 Table 19.3.3.1. Tolerance on air content as delivered shall be plus/minus 1.5 percent (ACI 318-1 R26.4.2.1(a)(5)). 4.Steel Reinforcement 4.1.Deformed bars: fy = 60 ksi (ASTM A615) 4.2.Welded plain wire: fy = 60 ksi (ASTM A1064) 4.3.Deformed Bar Anchors (DBA) (ASTM A1064) 4.4.Headed Stud Anchors (HSA) (ASTM A108) 4.5.At the time concrete is placed, reinforcement shall be free from ice, mud, oil, or other nonmetallic coatin decrease bond (ACI 318-14 26.6.1.2). 4.6.Reinforcement shall be accurately placed and adequately supported before concrete is placed, and shal against displacement (ACI 318-14 26.6.2.2). 4.7.Details of reinforcement shall conform to ACI 318-14 Chapter 25. 5.Minimum concrete cover (ACI 318-14 Table 20.6.1.3.1) 5.1.Concrete cast against and exposed to earth:3 inches 5.2.Concrete exposed to earth or weather: 5.2.1.No. 6 through No. 18 bars: 2 inches 5.2.2.No. 5 bar, W31 wire, and smaller:1.5 inches 5.3.Concrete not exposed to earth or weather: 5.3.1.Slabs, walls, joists No. 11 bar and smaller:0.75 inches 5.3.2.Beams, columns primary reinf., ties, stirrups:1.5 inches DESIGN CRITERIA Harris Architecture Palisades Apartments (Rexburg) 31103231. Building code: Idaho Administrative Code (IDAPA) 07.03.01.004 1.1 Model building code: 2018 IBC 1.2 Use and occupancy classification: R-2 (Residential - permanent) 1.3 Risk Category: II (Not occupancy categories I, III, IV)2. Dead loads 2.1 Roof = 17 psf (10 psf top chord, 7 psf bottom chord) 2.2 Floor = 22 psf 2.3 Walls = 10 psf (interior walls), 12 psf (exterior walls)3. Live loads -- Roofs (ordinary construction) = 20 psf (or 300 lb point load) -- Residential (hotels and multi-unit private areas and corridors serving them) = 40 psf -- Stairs and exits = 100 psf (or 300 lb point load)4. Rain load 4.1 Median 15-minute duration rainfall intensity = in/hr 4.2 Median 60-minute duration rainfall intensity = in/hr5. Snow load 5.1 Ground snow load, Pg = 50 psf (elevation 4860 ft) 5.2 Exposure factor, Ce = 1 5.3 Thermal factor, Ct = 1 5.4 Snow importance factor, Is = 1 5.5 Flat roof snow load, Pf = 35 psf 5.6 Roof slope factor, Cs = 1 6. Earthquake design data 6.1 Mapped acceleration parameters 6.1.1 Latitude, Longitude: 43.814, -111.805 6.1.2 MCE short period Ss = 0.36 SDS = 0.37 6.1.3 MCE 1.0 sec. period S1 = 0.14 SD1 = 0.22 6.2 Seismic design category: D 6.3 Seismic importance factor, Ie = 1 6.4 Basic structural system: Bearing wall systems 6.5 Seismic force-resisting system: Light-frame CFS walls (wood or steel sheathing) 6.5.1 Response modification factor R = 6.5 6.5.2 System overstrength factor Omega = 3 6.5.3 Deflection amplification factor Cd = 4 6.6 Equivalent Lateral Force Procedure 6.6.1 Seismic response coefficient Cs = 0.06 6.6.2 Seismic base shear (LRFD)V = 49048 lb 7. Wind design data 7.1 Exposure category: C 7.2 Basic design wind speed, V = 105 mph 7.3 Components and cladding pressure = 30 psf (end), 25 psf (interior) 7.4 Internal pressure coeff., Gcpi = 0.18 8. Geotechnical design basis: - Presumptive values, 2018 IBC Table 1806.2 8.2 Site class = D-Default 8.3 Soil notes: None 8.4 Lateral earth pressure 8.4.1 Active = 30 psf/ft 8.4.2 At-rest = 60 psf/ft 8.5 Allowable foundation parameters 8.5.1 Allowable soil bearing, Qa = 1500 psf 8.5.2 Allowable lateral bearing = 150 psf/ft 8.5.3 Coefficient of friction = 0.25 8.6 Minimum frost cover = 36 in. DEFERRED SUBMITTALS 1. The following items are to submitted subsequent to the time of application (deferred submittals): -- Prefabricated metal plate wood trusses - roof (truss manufacturer) 2. Deferred submittals shall have the prior approval of the building official (2018 IBC 107.3.4.1). 3. Deferred submittal documents shall be submitted to the registered design professional in responsible charge who shall review and forward them to the building official with a notation indicating that the documents have been reviewed and found to be in general conformance to the design of the building (2018 IBC 107.3.4.1). 4. Deferred submittal items shall not be installed until the design and submittal documents have been approved by the building official (2018 IBC 107.3.4.1). GENERAL SOIL AND FOUNDATIONS1.Geotechnical investigations shall conform to 2018 IBC 1803. Excavation, grading and fill shall conform to 201 Footings and foundations shall be constructed in accordance with 2018 IBC 1807 through 1810.2.Where required, the owner shall submit a geotechnical investigation report to the building official in accordan IBC 1803. The contractor shall inform the registered design professional in responsible charge if the soil cond consistent with the investigation report and the foundation design data. 3.Excavations for any purpose shall not remove lateral support from any footing or foundation without first unde protecting the footing or foundation against settlement or lateral translation (2018 IBC 1804.1). 4.Excavation outside the foundation shall be backfilled with soil that is free of organic material, construction deb and boulders or with a controlled low-strength material (CLSM). The backfill shall be placed in lifts and compa manner that does not damage the foundation or the waterproofing or dampproofing material (2018 IBC 1804. 5.The ground immediately adjacent to the foundation shall have a 5-percent slope away from the building for a distance of 10 feet measured perpendicular to the face of the foundation wall. If physical obstructions or lot lin feet of horizontal distance, a 5-percent slope shall be provided to an approved alternative method of diverting from the foundation. Impervious surfaces within 10 feet of the building foundation shall have a minimum 2-pe (2018 IBC 1804.4). 6.Footings and foundations shall be built on undisturbed soil, compacted fill material or CLSM. Compacted fill m CLSM shall conform to 2018 IBC 1804.6 and 2018 IBC 1804.7, respectively (2018 IBC 1809.2). 7.The top surface of the footings shall be level. The bottom surface of footings is permitted to have a maximum slope. Footings shall be stepped where it is necessary to change the elevation of the top surface of the footin surface of the ground has more than a 10-percent slope (2018 IBC 1809.3). 8.The minimum depth of footings below the undisturbed ground surface shall be 12 inches (2018 IBC 1809.4). walls, piers and other permanent supports shall be extended below the frost line, except where otherwise pro frost (2018 IBC 1809.5). 9.The placement of footings on or adjacent to 33-percent slopes and steeper shall conform to 2018 IBC 1808.7 10.Floors of basements shall be placed over base course not less than 4 inches in thickness and a drain shall be around the foundation perimeter that consists of gravel or crushed stone containing not more than 10-percen passes through a No. 4 sieve (2018 IBC 1805.4.1, 1805.4.2). 11.Backfill shall not be placed against a foundation wall until the wall has sufficient strength and is anchored to t or is sufficiently braced to prevent damage by the backfill, except bracing is not required for walls supporting feet of unbalanced backfill (R404.1.7). 12.Foundation waterproofing and dampproofing shall conform to 2018 IBC 1805. CONCRETE 1.Concrete materials, quality control, and construction shall comply with 2018 IBC Chapter 19 and ACI 318-14. 2.Compressive strength (minimum specified at 28 days) 2.1.Footings: 3,000 psi (2018 IBC 1808.8.1) (2,500 psi used in design) 2.2.Interior floor slabs on grade:3,000 psi 2.3.Exterior floor slabs on grade:4,000 psi 2.4.Suspended slabs: 4,000 psi 2.5.Walls: 3,000 psi (2018 IBC 1904.1) for R-2, R-3 occupancies and appurtenance 4,000 psi for other occupancies 3.Materials 3.1.Cements (ASTM C 150). Concrete exposed to freezing and thawing or deicing chemicals shall conform maximum water-cementitious material ratios and minimum compressive strength requirements of ACI 31 19.3.1.1 & 19.3.2.1. 3.2.Aggregates (ASTM C 33): nominal maximum size of coarse aggregate shall not be larger than 1/5 the n dimension between forms, nor 1/3 the depth of slabs, nor 3/4 the minimum clear spacing between reinfo wires, tendons, or ducts (ACI 318-14 26.4.2.1). 3.3.Water used in mixing concrete shall be potable, clean and free from injurious amounts of oils, acids, alka organic materials, or other substances deleterious to concrete or reinforcement (ACI 318-14 26.4.1.3.1.b 3.4.Admixtures shall be subject to prior approval by the registered design professional in responsible charge 26.4.1.4.1.b). 3.5.Concrete exposed to freezing and thawing or deicing chemicals shall be air-entrained with air content in 318-14 Table 19.3.3.1. Tolerance on air content as delivered shall be plus/minus 1.5 percent (ACI 318-1 R26.4.2.1(a)(5)). 4.Steel Reinforcement 4.1.Deformed bars: fy = 60 ksi (ASTM A615) 4.2.Welded plain wire: fy = 60 ksi (ASTM A1064) 4.3.Deformed Bar Anchors (DBA) (ASTM A1064) 4.4.Headed Stud Anchors (HSA) (ASTM A108) 4.5.At the time concrete is placed, reinforcement shall be free from ice, mud, oil, or other nonmetallic coatin decrease bond (ACI 318-14 26.6.1.2). 4.6.Reinforcement shall be accurately placed and adequately supported before concrete is placed, and shal against displacement (ACI 318-14 26.6.2.2). 4.7.Details of reinforcement shall conform to ACI 318-14 Chapter 25. 5.Minimum concrete cover (ACI 318-14 Table 20.6.1.3.1) 5.1.Concrete cast against and exposed to earth:3 inches 5.2.Concrete exposed to earth or weather: 5.2.1.No. 6 through No. 18 bars: 2 inches 5.2.2.No. 5 bar, W31 wire, and smaller:1.5 inches 5.3.Concrete not exposed to earth or weather: 5.3.1.Slabs, walls, joists No. 11 bar and smaller:0.75 inches 5.3.2.Beams, columns primary reinf., ties, stirrups:1.5 inches DESIGN CRITERIA Harris Architecture Palisades Apartments (Rexburg) 31103231. Building code: Idaho Administrative Code (IDAPA) 07.03.01.004 1.1 Model building code: 2018 IBC 1.2 Use and occupancy classification: R-2 (Residential - permanent) 1.3 Risk Category: II (Not occupancy categories I, III, IV) 2. Dead loads 2.1 Roof = 17 psf (10 psf top chord, 7 psf bottom chord) 2.2 Floor = 22 psf 2.3 Walls = 10 psf (interior walls), 12 psf (exterior walls) 3. Live loads -- Roofs (ordinary construction) = 20 psf (or 300 lb point load) -- Residential (hotels and multi-unit private areas and corridors serving them) = 40 psf -- Stairs and exits = 100 psf (or 300 lb point load) 4. Rain load 4.1 Median 15-minute duration rainfall intensity = in/hr 4.2 Median 60-minute duration rainfall intensity = in/hr 5. Snow load 5.1 Ground snow load, Pg = 50 psf (elevation 4860 ft) 5.2 Exposure factor, Ce = 1 5.3 Thermal factor, Ct = 1 5.4 Snow importance factor, Is = 1 5.5 Flat roof snow load, Pf = 35 psf 5.6 Roof slope factor, Cs = 1 6. Earthquake design data 6.1 Mapped acceleration parameters 6.1.1 Latitude, Longitude: 43.814, -111.805 6.1.2 MCE short periodSs = 0.36 SDS = 0.37 6.1.3 MCE 1.0 sec. periodS1 = 0.14 SD1 = 0.22 6.2 Seismic design category: D 6.3 Seismic importance factor, Ie = 1 6.4 Basic structural system: Bearing wall systems 6.5 Seismic force-resisting system: Light-frame CFS walls (wood or steel sheathing) 6.5.1 Response modification factorR = 6.5 6.5.2 System overstrength factor Omega = 3 6.5.3 Deflection amplification factor Cd = 4 6.6 Equivalent Lateral Force Procedure 6.6.1 Seismic response coefficientCs = 0.06 6.6.2 Seismic base shear (LRFD)V = 49048 lb 7. Wind design data 7.1 Exposure category: C 7.2 Basic design wind speed, V = 105 mph 7.3 Components and cladding pressure = 30 psf (end), 25 psf (interior) 7.4 Internal pressure coeff., Gcpi = 0.18 8. Geotechnical design basis: - Presumptive values, 2018 IBC Table 1806.2 8.2 Site class = D-Default 8.3 Soil notes: None 8.4 Lateral earth pressure 8.4.1 Active = 30 psf/ft 8.4.2 At-rest = 60 psf/ft 8.5 Allowable foundation parameters 8.5.1 Allowable soil bearing, Qa = 1500 psf 8.5.2 Allowable lateral bearing = 150 psf/ft 8.5.3 Coefficient of friction = 0.25 8.6 Minimum frost cover = 36 in. DEFERRED SUBMITTALS 1. The following items are to submitted subsequent to the time of application (deferred submittals): -- Prefabricated metal plate wood trusses - roof (truss manufacturer) 2. Deferred submittals shall have the prior approval of the building official (2018 IBC 107.3.4.1). 3. Deferred submittal documents shall be submitted to the registered design professional in responsible charge who shall review and forward them to the building official with a notation indicating that the documents have been reviewed and found to be in general conformance to the design of the building (2018 IBC 107.3.4.1). 4. Deferred submittal items shall not be installed until the design and submittal documents have been approved by the building official (2018 IBC 107.3.4.1). FOUNDATION WALL SCHEDULE MARK HEIGHT WIDTH REINFORCEMENT VERTICAL HORIZONTAL PLACEMENT FW10 10'8"#5 @ 10"(10) #4 CENTER FW10D 10'13.5"#5 @ 10"(17) #4 CENTER 1. DOWEL VERTICAL BARS INTO FOOTING. 2. PLACE TOP AND BOTTOM BARS WITHIN 4" OF TOP AND BOTTOM OF WALL. 3. PLACE REINFORCEMENT IN CENTER OF WALL OR NEAR EACH FACE, AS NOTED. 1 Ryan Wilkinson From:Jared Hill <jared@harris-arc.com> Sent:Friday, May 12, 2023 10:02 AM To:Chris Yeates; Todd Payne Cc:Dave Hansen Subject:Palisades city comments Chris and Todd, Here is the drop box link to the city comments that I got back this morning. hƩps://www.dropbox.com/scl/fo/kmm91b8pgo9e9zjmy4s0u/h?dl=0&rlkey=ok2m5vhy42zfqzwvhgy831oeq Dave, I did not see any comments for you, however but can you just look and verify that I did not miss anything. Thanks everyone. JARED HILL Project Manager O 801.377.6303 ext 110 920 East 800 North #201, Orem, UT 84097 | www.harris-architecture.com Author Name Author Email Author Phone No.: Cody Jones Cody.Jones@rexburg.org 208-372-2173 Don Allen Don.Allen@rexburg.org 208-372-2174 Alex Owens Alex.Owens@rexburg.org 208-372-2172 Description : Palisade Apartments Address : RPRPNRV0020010 Application Type : Document Filename : ~PALISADES APARTMENT - FULL SET SUBMITAL_1 - 2023-0504.pdf Array Comment Author Contact Information: Corrections in the following table need to be applied before a permit can be issued Review Report Revisions Required Page Reference Annotation Type Author : Department Status Page Review Comments Applicant Response Comments G0.1 Free Text Cody Jones : Building Open 2 2018 G0.1 Free Text Cody Jones : Building Open 2 2018 G0.1 Free Text Cody Jones : Building Open 2 Need Envelope COMM check or prescriptive form signed. Engineered truss plans need to be approved by building design professional. Cross slope of landings and sidewalks not to exceed 2%. Ventilation to comply IBC section 1203. Dwelling unit sound transmission toto have a class of not less than 50, unless tested. Exit signs and Exit lighting to comply with 1008 and 1013. Emergency Escape openings to comply with 1030. G07 Free Text Cody Jones : Building Open 8 2% of units to be type A. G07 Free Text Cody Jones : Building Open 8 Other then type A units the remainder to be type B units. A5.1 Free Text Cody Jones : Building Open 38 Section 708.4.2, exception #4 requires draft stopping above every two units or 3,000 square feet whichever is less. A5.1 Free Text Cody Jones : Building Open 38 2018 SN1 Free Text Cody Jones : Building Open 47 Special Inspector to be identified as per Section 1704. # 23-00257 New Multi-Family Residence Please digitally re-submit all pages of the plan set in response to requested revisions for our next review cycle, with noted items resolved. Report Date: 05.11.2023 Approval of plans does not constitute approval of variance from code Page 1 of 2 Page Reference Annotation Type Author : Department Status Page Review Comments Applicant Response Comments SN1 Free Text Cody Jones : Building Open 47 Waterproofing to comply with 1805. S0-0 Note Cody Jones : Building Open 48 Rebar: 8' Wall-Horizontal & Vertical 24" O.C. with 2 in Top 12" Rebar: 4' Wall-Horizontal & Vertical 24" O.C. with 1 in Top 6" E1.0 Callout Alex Owens : Electrical Open 72 All electrical work must comply with 2017 NEC. E3.0 Callout Alex Owens : Electrical Open 80 For verification: Idaho has exempted afci protection requirements in kitchens. E3.0 Callout Alex Owens : Electrical Open 80 For verification: Idaho has exempted gfci protection requirements for dishwashers/disposals under sink. E3.0 Callout Alex Owens : Electrical Open 80 For verification: 2017 NEC does not require panels in residential applications to be main breaker. E3.1 Free Text Alex Owens : Electrical Open 81 Notes on page 80 apply E3.2 Callout Alex Owens : Electrical Open 82 Please provide available fault current calculation for service. E3.2 Free Text Alex Owens : Electrical Open 82 Notes on page 80 apply Report Date: 05.11.2023 Approval of plans does not constitute approval of variance from code Page 2 of 2 Powered by TCPDF (www.tcpdf.org)