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Manual For Fabrication Of Precast Prestressed C...



Any precast, prestressed elements except for superstructure beams. This includes piling, sheet piling, retaining-wall elements, stay-in-place bridge deck panels, full-depth deck panels, and all products covered in B1.




Manual for Fabrication of Precast Prestressed C...



All precast, prestressed superstructure elements using straight, pretensioning, or posttensioning strands such as box beams, I-girders, bulb-tee beams, stemmed members, solid slabs, segmental box beams, and all products covered in B1 and B2.


This group includes structural and nonstructural precast or precast, prestressed concrete elements for buildings and other structures. These products have no special architectural finish and may be suitable for painting if specified.


SPECIFICATION REQUIREMENTS1) Thedesign and details of the reinforced concrete slab will be as shown on plans.2) Unlessotherwise noted, the Contractor has the option of using conventional forms,permanent metal deck forms (PMDF) or prestressed precast concrete panels (PCP)for forms for constructing a cast-in-place slab.3) Reinforcingsteel to be epoxy coated will be shown on plans when required.4) This is aplans quantity measurement item.


The Department will retain an engineering firm to provide fabrication inspection of prestressed/precast concrete products under the supervision of the Chief Structural Materials Engineer. This inspection will be performed Statewide and at out-of-state locations as directed by the Chief Structural Materials Engineer. The Contract will include reinforced concrete pipe and other items incidental to highway construction designated by the Department. Inspection will be conducted in accordance with the Department's Publication No. 145. The Contract will be for a period of sixty (60) months, commencing January 1, 2001.


The staff assigned to prestressed concrete fabrication inspection must be high school graduates with no less than three (3) years in concrete construction of which one (1) year is in the prestressed concrete fabrication field.


The staff assigned to precast box culvert fabrication inspection must be high school graduates with no less than three (3) years in concrete construction of which one (1) year is in the prestressed concrete fabrication field or the precast concrete box culvert fabrication field.


The Staff Engineer (Manager) of the inspection personnel must be a Professional Engineer registered in Pennsylvania with a minimum of three (3) years of prestressed/precast fabrication related experience. One (1) year must be directly related to prestressed concrete plant fabrication.


Under the direction of the Department, the selected firm will be required to keep records and document the fabrication process either manually, electronically or both; provide quality assurance inspection and perform acceptance tests; submit weekly progress reports; exercise control over materials and workmanship to ensure conformance to specifications; provide a detailed final report and a tabulated list of prestressed/ precast concrete quantities shipped to Department projects. 041b061a72


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