CMAA 70 and the additional tolerance requirements specified in this
section. After each survey, submit a written report to the Contracting
Officer with the following information: field survey results, tolerance
requirements, areas out of tolerance, and proposed corrective measures.
Proposed corrective measures shall be approved by the Contracting Officer.
Following completion of corrective measures, areas that were previously out
of tolerance shall be re-surveyed and another written report shall be
furnished to the Contracting Officer. Field surveys shall be performed and
sealed by a registered land surveyor.
]3.8.4
High-Strength Bolts
3.8.4.1
Testing Bolt, Nut, and Washer Assemblies
**************************************************************************
NOTE: Use AISC 348 for designs using AISC 316 and
AISC 317 (allowable stress), and use AISC 348 for
designs using AISC 325 (load and resistance factor).
**************************************************************************
Test a minimum of [3] [_____] bolt, nut, and washer assemblies from each
mill certificate batch in a tension measuring device at the job site prior
to the beginning of bolting start-up. Demonstrate that the bolts and nuts,
when used together, can develop tension not less than the provisions
specified in [AISC 348] [AISC 348], Table 4, depending on bolt size and
grade. The bolt tension shall be developed by tightening the nut. A
representative of the manufacturer or supplier shall be present to ensure
that the fasteners are properly used, and to demonstrate that the fastener
assemblies supplied satisfy the specified requirements.
3.8.4.2
Inspection
**************************************************************************
NOTE: Use AISC 348 for designs using AISC 316 and
AISC 317 (allowable stress), and use AISC 348 for
designs using AISC 325 (load and resistance factor).
**************************************************************************
Inspection procedures shall be in accordance with [AISC 348] [AISC 348],
Section 9. Confirm and report to the Contracting Officer that the
materials meet the project specification and that they are properly stored.
Confirm that the faying surfaces have been properly prepared before the
connections are assembled. Observe the specified job site testing and
calibration, and confirm that the procedure to be used provides the
required tension. Monitor the work to ensure the testing procedures are
routinely followed on joints that are specified to be fully tensioned.
3.8.4.3
Testing
The Government has the option to perform nondestructive tests on [5]
[_____] percent of the installed bolts to verify compliance with pre-load
bolt tension requirements. The nondestructive testing will be done
in-place using an ultrasonic measuring device or any other device capable
of determining in-place pre-load bolt tension. The test locations shall be
selected by the Contracting Officer. If more than [10] [_____] percent of
the bolts tested contain defects identified by testing, then all bolts used
from the batch from which the tested bolts were taken, shall be tested.
Retest new bolts after installation.
SECTION 05120
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