ACI 347R-14, "Guide to Formwork for Concrete," is a comprehensive standard from the American Concrete Institute covering the safe design, construction, and materials for concrete formwork. The guide prioritizes safety, economy, and quality, detailing requirements for structural loads, lateral pressure, and in-field inspection. For more details, visit American Concrete Institute.
Contract Documents: The guide specifies what information should be included in contract documents, ensuring that the engineer/architect provides enough detail to guide the contractor without overstepping into "means and methods".
Given the keyword search, many users are looking for a free download. Warning: Unauthorized sharing of ACI documents violates copyright law. However, there are legitimate ways to access the PDF. aci 347r14 guide to formwork for concrete pdf
Lists key standards from ACI, ASCE, OSHA, and the Formwork Industry Association.
Bridges, tunnels, dams, and architectural concrete all have unique formwork needs. The PDF devotes a chapter to curved surfaces, post-tensioned slabs, and slipforming (continuous vertical placement). ACI 347R-14, "Guide to Formwork for Concrete," is
ACI 347R-14 references ACI 117 regarding tolerances for plumb, line, and level. The guide advises that forms must be built within tolerances slightly stricter than the final concrete requirement to account for movement during placement.
Unlike a strict code, this document is a guide (hence the "R" for "Report"). It provides recommended practices rather than mandatory requirements, though many building codes reference it as a standard of care. Formwork construction : The guide covers the construction
One of the most critical sections of ACI 347R-14 deals with design loads. Formwork must withstand not only the weight of fresh concrete (dead load) but also live loads from workers, equipment, wind, impact during placement, and vibration from internal pokers. The guide provides clear formulas and tables to calculate these combined loads, ensuring a safety factor that prevents blowouts or collapses.