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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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This report examines the benefits of the design of concrete towers for land-based wind turbines with heights in excess of 325 ft (100 m), in comparison to those of round steel tubular towers. These benefits include reduced cost, increased stiffness, and superior service life performance. Construction alternatives, design criteria, design methodologies, and guidance for preliminary design of concrete towers are presented.
The report recognizes that final tower design requires close coordination with the turbine supplier. The report is intended for those involved in developing preliminary tower designs. Concrete towers designed for maximum wind forces can be satisfactory for preliminary design, but the final design requires checking for all loads, especially fatigue and dynamic effects from wind and turbine operations. Design of connections and their proportions require an understanding of fatigue requirements during preliminary design for the connection design to remain valid during final checks.
The MCP Online contains all new committee standards and reports released throughout the year. The most recently added include:
423.3R-17 Recommendations for Concrete Members Prestressed with Single-Strand Unbonded Tendons
364.14T-17 Section Loss Determination of Damaged or Corroded Reinforcing Steel Bars
325.14R-17 Guide for Design and Proportioning of Concrete Mixtures for Pavements
544.2R-17 Report on the Measurement of Fresh State Properties and Fiber Dispersion of Fiber-Reinforced Concrete
440.2R-17 Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures
330.2R-17 Guide for the Design and Construction of Concrete Site Paving for Industrial and Trucking Facilities
544.9R-17 Report on Measuring Mechanical Properties of Hardened Fiber-Reinforced Concrete
347.2R-17 Guide for Shoring/Reshoring of Concrete Multistory Buildings
241R-17 Report on Application of Nanotechnology and Nanomaterials in Concrete
562M-16 Code Requirements for Assessment, Repair, and Rehabilitation of Existing Concrete Structures and Commentary (metric)