caisson elements is dimensionally thin.
**************************************************************************
Maximum size of coarse aggregate shall be [_____] mm [_____] inch.
2.1.1.3
Reinforcing Steel
**************************************************************************
NOTE: Reinforcing steel grades shall conform to one
of the following:
ASTM A 615/A 615M for deformed billet - steel bars
shall be 400 or 500 MPa Grades 60 or 75
ASTM A 616/A 616M for rail-steel deformed bars shall
be 400 MPa Grade 60
ASTM A 617/A617M for axle-steel deformed bars shall
be 400 MPa Grade 60
**************************************************************************
[ASTM A 615/A 615M] [ASTM A 616/A 616M] [ASTM A 617/A 617M] Grade [_____].
Steel shall be welded into cages in accordance with AWS D1.4.
2.1.2
Welding
Shop and field welding shall be in accordance with AWS D1.1/D1.1M.
Qualification of welding procedures, welders, and welding operators shall
be in accordance with AWS D1.1/D1.1M. Records of test results of welding
procedures not prequalified and copies of records for each qualified
welding operator, containing records on positions of welding and types of
electrode qualifications, shall be kept by the Contractor and be available
for examination by the Contracting Officer.
2.1.3
Casing Steel
**************************************************************************
NOTE: Minimum wall thickness should be determined
based on the structural loading conditions.
**************************************************************************
ASTM A 36/A 36M. Zinc coating of casing steel shall conform to ASTM A 123.
Casings shall have outside diameters not less than indicated shaft sizes
and shall be a minimum of [6.4 mm] [1/4 inch] [_____] thick.
2.2
CAISSON DRILLING EQUIPMENT
**************************************************************************
NOTE: Caisson drilling equipment criteria should be
evaluated and specified for contract site
conditions. Reference: Drilled Pier Foundations -
Woodward, Gardener, Greer - McGraw-Hill Book Co.
Requirements should be included for determination of
minimum equipment standards.
**************************************************************************
force capacity suitable for the site conditions.
SECTION 02468N
Page 8
Previous Page
