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Gantry Crane Lifting Beam for Stop Logs at Choke Canyon Dam


Location
Texas
Publication Date
01/28/2020 03:55 PM EST
Closing Date
03/10/2020 01:00 AM EDT
Issuing Organization
City of Corpus Christi
Solicitation Number
Description

Specifications include, but are not limited to: 4.1 General Requirements A. The Contractor shall manufacture beam, deliver and install, and provide appurtenances and incidentals necessary for a complete and functioning lifting beam. B. The Contractor shall manufacture lifting beam as per specification and drawings outlined in this Scope of work. C. The purpose of this lifting beam is to use with a gantry crane to lift and place steel stoplogs at the Choke Canyon Dam. 4.2 Specification A. Fabrication 1. The Contractor shall manufacture lifting beam as per drawings attached in Attachment A-1. Drawings indicate the design, sections and weights of members. The Contractor shall not change drawings or specification without written permission from the Contract Administrator. 2. The Contractor shall perform thermal cutting by machine to greatest extent possible. The Contractor shall plane thermally cut edges to be welded to comply with requirements in American Welding Society (AWS) D1.1 3. The Contractor shall cut, drill or punch bolt holes perpendicular to metal surfaces. All holes shall be American Institute of Steel Construction (AISC) standard unless noted otherwise. 4. The Contractor shall accurately finish ends of column and other members transmitting bearing loads. 5. The Contractor shall clean and prepare steel surfaces that are to remain unpainted according to (Society of Protective Coating) SSPC- SP 2, Hand Tool Cleaning 6. The Contractor must comply with AWS D1.1 for welding procedure specifications, tolerances, appearance and quality of welds and for methods used in correcting welding work. 7. The Contractor shall assemble and weld built-up sections by methods that will maintain true alignment of axes without exceeding tolerances of AISC’s code of Standard practice for Steel Buildings and Bridges for mill material.

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