B08_Attach_15_MEVE_218998_Rehab_Chapin_Mesa_StatementOfStructuralTestsSpecialInspections_2024_09_20.pdf

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Statement of Structural Tests and Special Inspections National Park Service (NPS) - Denver Service Center (DSC) | 12-16-22

Park: Mesa Verde National Park

Project Management Information System (PMIS) Number: 218998

Project Name: Rehabilitate and Stabilize Chapin Mesa Historic Buildings

Structural Engineering Firm: DCI Engineers

This Statement of Structural Tests and Special Inspections is being submitted as required by Chapter 17 of the

2021 International Building Code (IBC-21). It includes the following:

1. Seismic requirements

2. Wind requirements

3. Qualification Requirements for Inspectors and Testing Technicians

4. Listing of Required Structural Tests and Special Inspections

The Construction Contractor’s Quality Control Supervisor will provide copies of all special inspection reports and associated documentation to the Contracting Officer (CO). The Construction Contractor will be required to correct all deficiencies discovered in the Special Inspection and Structural Testing program.

Prepared By: __________________________________________________________________ (Type or print name)

Signature: _____________________________________________ Date: _____________

Stamped by Professional Engineer (PE) or Structural Engineer (SE)

Lindsey Bosworth

09.19.2024

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Seismic and Wind Requirements

Seismic Requirements, IBC-21 Section 1704.3

Description of seismic-force-resisting system and designated seismic systems subject to special inspections:

The seismic resisting system consists of existing sandstone walls, acting as shearwalls, with wood framed roof and floor diaphragms. The site is in Seismic Design Category A, and therefore is not subject to special inspections based on seismic force-resisting requirements. The walls are also existing with no new shearwalls constructed. None of the roof or floor diaphragms are high loaded diaphragms thus there are no inspection requirements for any part of the seismic resisting system.

Wind Requirements, IBC-21 Section 1704.3

Description of wind-force-resisting system and designated wind systems subject to special inspections:

The wind force resisting systems consist of the same elements noted above. The site is not subject to special inspections based on wind-force-resisting requirements.

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Instructions:

1. Under Listing of Required Structural Tests and Special Inspections:

a. Required? - Place an X for all Special Inspections and Tests required for this project.

b. Required Qualifications - Provide qualifications for the special inspector, using the

Qualification Requirements for Inspector and Testing Technicians list below, for all required Structural Tests and Special Inspections.

c. Continuous - If marked with an X, continuous special inspection shall be as defined in Chapter

2, IBC-21.

d. Periodic - If marked with an X, provide the minimum number of tests, i.e. 20% of all field welds, or the amount of work to be inspected (e.g. 10% of all wall surfaces).

2. Attach completed Statement of Structural Tests and Special Inspections to the end of NPS DSC Division 1 Specifications Section 01 40 00 Quality Requirements.

Qualification Requirements for Inspectors and Testing Technicians

PE/SE Structural Engineer – licensed PE or SE specializing in the design of buildings and structures

PE/GE Geotechnical Engineer – licensed PE specializing in soil mechanics and foundations

EIT Engineer-In-Training – graduate engineer who has passed the Fundamentals of engineering examination

American Concrete Institute (ACI) Certification

ACI-CCSI Concrete Construction Special Inspector

ACI-LTT Concrete Laboratory Testing Technician Level 1 or 2

ACI-STT Concrete Strength Testing Technician

ACI-FTT Concrete Field Testing Technician – Grade I

American Society of Non-Destructive Testing (ASNT) Certification

Non-Destructive Testing Technician – Level II or III

American Welding Society (AWS) Certification

AWS-CWI Certified Welding Inspector

Exterior Design Institute (EDI) Certification

EDI-EIFS Certified EIFS inspector

International Code Council (ICC) Certification

ICC-PCSI Prestressed Concrete Special Inspector

ICC-RCSI Reinforced Concrete Special Inspector

ICC-SSI Soils Special Inspector

ICC-SFSI Spray-applied Fireproofing Special Inspector

ICC-SMSI Structural Masonry Special Inspector

ICC-SSBSI Structural Steel and Bolting Special Inspector

ICC-SWSI Structural Welding Special Inspector

National Institute for Certification in Engineering Technologies (NICET) Certification

NICET-CT Concrete Technician – Levels I, II, III and IV

NICET-GET Geotechnical Engineering Technician - Levels I, II, III and IV

NICET-ST Soils Technician - Levels I, II, III and IV

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Other

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Listing of Required Structural Tests and Special Inspections R e q u ir e d

Structural Test or Special Inspection Required

Qualifications

C o n ti n u o u s

P e ri o d ic Frequency of

Periodic Test or Inspection

Steel Construction (IBC-21 Section 1705.2; American Institute of Steel Construction: AISC 360-16 Chapter N, AISC 341- 16 Chapter J)

Prior to Welding (AISC 360-16 Table N5.4-1)

X

1. Welder qualification records and continuity records

AWS-CWI

2. Welding procedure specifications (WPS) available

3. Manufacturer certifications for welding consumables available

X 4. Material identification (type/grade) AWS-CWI X 1

X 5. Welder identification system AWS-CWI X 1

6. Fit-up of groove welds (including joint geometry) AWS-CWI

a. Joint preparation AWS-CWI X 1

b. Dimensions (alignment, root opening, root face, bevel)

AWS-CWI

X

c. Cleanliness (condition of steel surfaces) AWS-CWI X 1

d. Tacking (tack weld quality and location) AWS-CWI X 1

e. Backing type and fit (if applicable) AWS-CWI X 1

7. Fit-up of CJP (complete joist penetration) groove welds of HSS (hollow structural sections) T-, Y- and K-joints without backing (including joint geometry)

a. Joint preparation AWS-CWI

b. Dimensions (alignment, root opening, root face, bevel)

c. Cleanliness (condition of steel surfaces) AWS-CWI

d. Tacking (tack weld quality and location) AWS-CWI

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R e q u ir e

Qualifications

C o n ti n u o ri o d ic Frequency of

Periodic Test or Inspection

8. Configuration and finish of access holes AWS-CWI

9. Fit-up of fillet welds

X a. Dimensions (alignment, gaps at root) AWS-CWI X 1

X b. Cleanliness (condition of steel surfaces) AWS-CWI X 1

X c. Tacking (tack weld quality and location) AWS-CWI X 1

X 10. Check welding equipment AWS-CWI X 1

During Welding (AISC 360-16 Table N5.4-2)

1. Control and handling of welding consumables

X a. Packaging AWS-CWI X 1

X b. Exposure control AWS-CWI X 1

X 2. No welding over cracked tack welds AWS-CWI X 1

3. Environmental conditions

X a. Wind speed within limits AWS-CWI X 1

X b. Precipitation and temperature AWS-CWI X 1

4. WPS followed

X a. Settings on welding equipment AWS-CWI X 1

X b. Travel speed AWS-CWI X 1

X c. Selected welding materials AWS-CWI X 1

X d. Shielding gas type/flow rate AWS-CWI X 1

X e. Preheat applied AWS-CWI X 1

X

f. Interpass temperature maintained

(minimum/maximum)

AWS-CWI

X

X g. Proper position (F, V, H, OH) AWS-CWI X 1

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Qualifications

C o n ti n u o ri o d ic Frequency of

Periodic Test or Inspection

X

h. Intermix of filler metals avoided unless approved (reference: AISC 341-16 Table J6.2)

AWS-CWI

X

X

5. Use of qualified welders (reference: AISC 341-

16 Table J6.2)

AWS-CWI

X

6. Welding techniques

X a. Interpass and final cleaning AWS-CWI X 1

X b. Each pass within profile limitations AWS-CWI X 1

X c. Each pass meets quality requirements AWS-CWI X 1

X

7. Placement and installation of headed stud anchors

AWS-CWI

X

After Welding (AISC 360-16 Table N5.4-3)

X 1. Welds cleaned AWS-CWI X 1

X 2. Size, length and location of welds AWS-CWI X 1

X 3. Welds meet visual acceptance criteria 1

a. Crack prohibition AWS-CWI X

b. Weld/base-metal fusion AWS-CWI X

c. Crater cross section AWS-CWI X

d. Weld profiles AWS-CWI X

e. Weld size AWS-CWI X

f. Undercut AWS-CWI X

g. Porosity AWS-CWI X

4. Arc strikes AWS-CWI X

5. k-area AWS-CWI X

6. Weld access holes in rolled heavy shapes and built-up heavy shapes

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Qualifications

C o n ti n u o ri o d ic Frequency of

7. Backing removed and weld tabs removed (if required)

X 8. Repair activities AWS-CWI X 1

9. Document acceptance or rejection of welded joint or member

AWS-CWI

X

X

10. No prohibited welds have been added without the approval of the EOR (Engineer of Record)

AWS-CWI

11. Placement of reinforcing or contouring fillet welds (if required) (reference: AISC 341-16)

Nondestructive Testing (AISC 360-16 Section N5 and AISC 341-16 Section J6)

1. Risk Category II Structures - Perform Ultrasonic Testing on 10% of CJP groove welds in butt, T-and corner joints subject to transversely applied tension loading, in materials 5/16 inch thick or greater.

Non-destructive Testing Technician

– Level II or Level III X

2. Risk Category III or IV Structures - Perform Ultrasonic Testing on all CJP groove welds subject to transversely applied tension loading in butt, T- and corner joints, in materials 5/16 inch thick or greater.

3. Access Holes – Perform Magnetic Particle Testing or Liquid Penetrant Testing when the flange thickness exceeds 2 inches for rolled shapes, or when the web thickness exceeds 2 inches for built-up shapes.

4. Welded Joints Subject to Fatigue X

Nondestructive Testing (AISC 341-16 Section J6)

Column Splice and Column to Base Plate PJP Groove Weld (AISC 341-16 Section J6 2b)

1. Perform Ultrasonic Testing on 100% of PJP

(partial-joint-penetration) groove welds in column splices and column to base plate welds

2. CJP Groove weld X

3. Lamellar tearing X

4. Beam cope and access hole X

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Qualifications

C o n ti n u o ri o d ic Frequency of

Periodic Test or Inspection

5. Reduced beam section repair X

6. Weld tab removal X

Prior to Bolting (AISC 360-16 Table N5.6-1)

These inspections are not required for snug-tight joints.

1. Manufacturer’s certifications available for fastener materials

ICC-SSBSI

2. Fasteners marked in accordance with ASTM requirements

3. Correct fasteners selected for the joint detail

(grade, type, bolt length if threads are to be excluded from shear plane)

4. Correct bolting procedure selected for joint detail

5. Connecting elements, including the appropriate faying surface condition and hole preparation, if specified, meet applicable requirements

6. Pre-installation verification testing by installation personnel observed and documented for fastener assemblies and methods used

7. Protected storage provided for bolts, nuts, washers and other fastener components

During Bolting (AISC 360-16 Table N5.6-2)

These inspections are not required for snug-tight joints.

These inspections are not required for pretensioned joints and slip-critical joints, when the installer is using the turn-of-nut method with matchmarking techniques, the direct-tension-indicator method, or the twist-off-type tension control bolt method.

1. Fastener assemblies, of suitable condition, placed in all holes and washers (if required) are positioned as required

2. Joint brought to the snug-tight condition prior to the pretensioning operation

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Qualifications

C o n ti n u o ri o d ic Frequency of

3. Fastener component not turned by the wrench prevented from rotating

4. Fasteners are pretensioned in accordance with the RCSC (Resource Council on Structural Connections) Specification, progressing systematically from the most rigid point toward the free edges

After Bolting (AISC 360-16 Table N5.6-2)

Document acceptance or rejection of bolted connections.

Other Inspection Tasks (AISC 360-16 Section N5.8)

1. Verify compliance of fabricated steel with the details shown on the approved shop drawings.

ICC-SSBSI

X

X

2. Verify compliance of the erected steel frame with the details shown on the approved erection drawings, including braces, stiffeners, member locations and joint details.

ICC-SSBSI

3. Anchor rods and other embedments support structural steel

a. Verify the diameter, grade, type and length of the anchor rod or embedded item.

ICC-SSBSI

X

X

b. Verify the extent or depth of embedment into the concrete.

ICC-SSBSI

4. RBS (reduce beam section) requirements, if applicable (AISC 341-16)

a. Contour and finish ICC-SSBSI X

b. Dimensional tolerances ICC-SSBSI X

5. Protected zone - no holes and unapproved attachments made by fabricator or erector, as applicable. (AISC 341-16)

6. H-piles - Protected zone - no holes and unapproved attachments made by the responsible contractor, as applicable. (AISC 341-16)

Concrete Construction (IBC-21 Section 1705.3)

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Qualifications

C o n ti n u o ri o d ic Frequency of

Periodic Test or Inspection

X

1. Inspect reinforcing steel, including prestressing tendons, and placement.

ACI-FTT

X

2. Inspection of reinforcing steel welding

a. Verify weldability of reinforcing bars other than ASTM A706.

ACI-FTT

b. Inspect single pass fillet welds, maximum

5/16 inch.

c. Inspect all other welds. ACI-FTT X

X 3. Inspection of anchors cast in concrete. ACI-FTT X 1

X

4. Inspection of anchors post-installed in hardened concrete members.

a. Adhesive anchors installed in horizontally or upwardly inclined orientations to resist sustained tension load

b. Mechanical anchors and adhesive anchors not defined in 4 a

ACI-FTT

X

X 5. Verify use of required design mix. PE X 1

X

6. Prior to concrete placement, fabricate specimens for strength tests, perform slump and air content tests, and determine the temperature of the concrete.

7. Inspect concrete and shotcrete placement for proper application techniques.

8. Verify maintenance of specified curing temperature and techniques.

ACI-FTT

X

X

9. Inspection formwork for shape, location and dimensions of the concrete member being formed.

ACI-FTT

X

Wood Construction (IBC-21 Section 1705.5)

1. Inspect prefabricated wood structural elements in accordance with Section 1704.2.5.

EIT/PE

2. High load diaphragms:

a. Verify sheathing grade and thickness. EIT/PE X

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Qualifications

C o n ti n u o ri o d ic Frequency of

b. Verify nominal size of framing members at adjoining panel edges.

c. Verify nail or staple diameter and length. EIT/PE X

d. Verify number of fastener lines. EIT/PE X

e. Verify spacing between fasteners in each line and at panel edges.

3. Shearwalls:

a. Verify sheathing grade and thickness. EIT/PE X

b. Verify nominal size of framing members at adjoining panel edges.

c. Verify nail or staple diameter and length. EIT/PE X

d. Verify number of fastener lines. EIT/PE X

e. Verify spacing between fasteners in each line and at panel edges.

f. Location and size of holdowns. EIT/PE X

4. Verify nailing, bolting, anchoring and fastening of:

a. Drag struts and collectors. EIT/PE X

b. Braces. EIT/PE X

c. Hold-downs. EIT/PE X

5. Metal-plate-connected wood trusses spanning

60 feet or greater:

a. Verify temporary installation restraint/bracing installed in accordance with the approved shop drawings.

b. Verify permanent individual truss member restraint/bracing installed in accordance with the approved shop drawings.

Soils (IBC-21 Section 1705.6)

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Qualifications

C o n ti n u o ri o d ic Frequency of

Periodic Test or Inspection

X

1. Verify materials below shallow foundations are adequate to achieve the required bearing capacity.

NICET-ST

X

X

2. Verify excavations are extended to proper depth and have reached proper material.

NICET-ST

X

X

3. Perform classification and testing of compacted fill materials.

NICET-ST

X

X

4. During fill placement, verify use of proper materials and procedure in accordance with the provisions of the approved geotechnical report.

Verify densities and lift thicknesses during placement and compaction of compacted fill.

NICET-ST

5. Prior to placement of compacted fill, inspect subgrade and verify that site has been prepared properly.

NICET-ST