Section 577 — Fiber-Reinforced Polymer Structures
Description
577.01This work consists of designing, fabricating, transporting, and erecting FRP bridges and structural components.
Material
577.02Conform to the following Subsections: Bolts and nuts 717.01(d) Fiber -reinforced polymer 725.19
Construction Requirements
577.03Qualifications. A t least 30 days before starting FRP work, submit the following for approval:
(a)On-site supervisor. A résumé describing experience on at least five projects of similar construction and complexity, each of which have been in service for at least 2 years. Include bridge size, project names, locations, and contact information for project owners; and
(b)FRP components manufacture r. Documentation describing experience on at least five projects of similar size and scope within the past 5 years. Include project names, overlay system and quantities, construction dates, locations, and contact information for project owners.
577.04Submittals. At least 30 days before starting FRP structure fabrication, submit the following according to Subsection 104.06:
(a)Drawings. Drawings and calculations for the design of FRP bridges and structural components;
(b)Fabrication drawings. D etailed dimensions and sizes of component parts of the structure and details of miscellaneo us parts, including FRP components, decking, hardware, railings, and accessories; and
(c)Erection drawings. Proposed method of erection. Show details of falsework, bracing, lifting devices, and bridge member attachments. Include the erection sequence, equipment locations, lifting point locations, and bridge member masses. Include details for anticipated phases and erection conditions, which account for the limitations of the construction site.
577.05General. Construct falsework according to Section 562. Construct bearing devices according to Section 564.
577.06Design. Design FRP structures according to AASHTO, Guide Specifications for Design of FRP Pedestrian Bridges and AASHTO, LRFD Guide Specifications for Design of Pedestrian Bridges .
577.07Fabrication and Installation. Protect corners and edges of structural members by using slings or other devices. Store components on site flat and off the ground, and support with blocks to prevent bending and damage from water and dirt. Cut and form structural members so all joints have even bearing over the entire contact surface. Do not use shims in making joints. Construct all joints to be closed. Do not perform field cutting, drilling, or ot her field modifications unless shown in the plans or approved fabrication drawings. Fabricate structural members from pultruded FRP composite profiles and structural shapes as required. Fabricate pultruded parts according to ASTM D4385 and ASTM D3917. Use carbide or diamond -tipped tooling to a tolerance of ⅟ 16 inch when cutting or drilling FRP material. Clean and seal cut edges. Camber FRP structures to eliminate initial dead load deflection. Provide structural components with a minimum thickness of ¼ inch.
577.08Acceptance. Material for FRP structures will be evaluated under Subsections 106.02 and 106.03. Construction of FRP structures will be evaluated under Subsections 106.02 and 106.04. Bearing devices will be evaluated under Section 564. Temporary works will be evaluated under Section 562.
Measurement
577.09Measure the Section 577 pay items listed in the bid schedule according to Subsection 109.02 .
Payment
577.10The accepted quantities will be paid at the contract price per unit of measurement for the Section 577 pay items listed in the bid schedule. Payment will be full compensation for the work prescribed in this Section. See Subsection 109.05 . Progress payments for FRP bridges by the lump sum will be paid as follows:
(a)25 percent of the pay item amount will be paid after the design submittal is approved.
(b)An additional 40 per cent of the pay item amount will be paid after the bridge components are delivered to the project site.
(c)The remaining portion of the pay item amount will be paid after the bridge components are installed.