MANAGEMENT
Introduction by Jack Metcalfe
Detailing planning for erectors: A Checklist Pointers for clear communication between construction parties
Pre-construction communication reduces problems in the field that may affect the erect-ability of steel members. Credit: Schulz Iron Works Inc.
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wners, general contractors, erectors, fabricators and detailers all know that communication between construction participants helps bring a successful conclusion to our projects. Time and distance constraints often makes it difficult for project members to meet prior to start-up. To aid planning, SEAA and NISD produced a comprehensive guide for erectors, which is currently undergoing revision. Excerpted from that document is the following Pre-construction Checklist. The items highlighted here provide insight into the detailing process for further discussion in your organization.
Pre-Drafting Items for Consideration Sequence and schedule of erection: Grid lines, floors, derricking, size, tonnage. 1) Sequence and schedule of erection: Grid lines, floors, derricking, size, tonnage. 2) Shipping requirements: Site layout, access and lay-down area, splice requirements, and shipping methods. 3) Crane capacity: weight and reach constraints, and hazards. 4a) Types of Connection: (e.g. seated, sheartab, moment, girts hung or seated, etc.) 4b) Bolting requirements: (e.g. types, installation “snug-tight”, “slip critical”, Direct Tension Indicators (DTI), etc., clearance for torque guns or tools. 5) Safety requirements: prevailing codes, OSHA’s requirements, fall protection, Jack Metcalfe serves on the boards for both SEAA and the National Institute of Steel Detailing (NISD). He is actively involved in both organizations’ safety and long-range planning committees
Pre-Construction Checklist perimeter protection, safety aids, egress requirements, etc. • Joist Connections • Fall Protection • Column Splicing and Bases • Beam to Column Connections • Bracing 6) Field welding requirements: procedures preferences, joint preparation, and access. 7) Communication channels: between erector, fabricator, detailer, professionals, and inspector. 8) Pre-bid value engineering: best connections, shop assemblies, mechanical penetrations reinforcing, tie joists. 9) Responsibilities; contractual, design, connection design, approvals, revisions, payments. 10) Joist/ Deck/ Floor & Roof openings 11) Erect-ability: bolt access, shop assemblies, clearances for torque guns, hands and tools, leveling devices.
22 | THE STEEL ERECTORS ASSOCIATION OF AMERICA
1) Sequence: Erector/Contractor must establish, prior to commencement of work, the sequencing so that material may be ordered and members detailed in proper order. Detailer must indicate on mill lists, shop drawings, and member placement drawings (plans and elevations) the required sequence. 2) Shipping: The erector should be permitted to visit the site prior to bidding to establish what, if any, special conditions exist which are not indicated on the contract documents. In the event conditions warrant special considerations such as splicing, shipping methods, etc., the erector must advise the detailer and fabricator in a timely manner. 3) Cranes: The erector must notify the detailer and others if there are any special requirements due to crane reach, availability, or capacity that will affect someone else’s particular operation. Critical lifts of large members, or irregular shapes, lifting lugs, and/ or lifting locations should be defined and the