Revision of Army Technical Manual /NAVFAC P/AFR , Force Manual (AFM) (TM ) (Department of the Air Force, ). manual TM , NAVFAC P, and AFM 88 This document generally has the most conservative criteria. It has been updated recently with some. Download Citation on ResearchGate | Summary of Changes and Availability of the Revised TM NAVFAC P, AFM “Design of Structures to.
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Design of structures of these types is highly specialized and is beyond the scope of this manual.
TM 5 – US Department of This required degree of stability will be provided solely by the dead load plus any permanent anchorage. Additional design guidance will be obtained from applicable design agency reference documents and the Handbook of Concrete Engineering by Fintel.
Stability Unless noted otherwise, stability relates to sliding, overturning, buoyancy, and other sources of gross displacement and not to stability as related to buckling. Design methods and stresses will be as appropriate for the material used for the supporting structure.
Cover Image: Phys. Rev. Lett. Vol. 88, Iss. 22
Silos, bins, and bunkers. Intake and discharge structures. Wave forces on vertical walls, piles, and other exposed structures will be determined in accordance with the CERC Shore Protection Manual. Large-scale ductwork refers to ductwork typically associated with major supply air and hot gas conveyances, e.
Retaining structures can be classified with respect to the manner 88-22 which forces are transmitted to the surrounding soil as either gravity, cantilever, 888-22 anchored types. Gas and air conveyances Gas and air conveyances, particularly for hot gases, will be designed to meet fire protection requirements including National Fire Protection Association NFPA Additional considerations apply 888-22 tank design depending on the type of tank and other factors as discussed in the following.
Pipelines and supports Design requirements for pipelines and their supports will depend on the nature of the material being transported and the materials used for construction.
Storage of corrosive solutions and the effects of temperature in conjunction with corrosive solutions will be considerations in selecting tank materials. Equipment foundations will be designed in accordance with current practices; the safety factor for stability against overturning and for resistance against sliding will be as set forth in paragraph A minimum temperature differential of 40 degrees F will be assumed to exist between inside and outside faces of tank walls.
wfm Equipment supports and enclosures a. Utility tunnels Utility tunnels will be provided for mechanical systems where a number of systems follow the same general alignment.
Material anisotropy revealed by phase contrast in intermittent contact atomic force microscopy.
Consideration will be given to the need for and alternate means of accomplishing corrosion protection of the underside of the tank floor plates.
For aluminum towers and 88-222, the onethird increase in allowable stresses under wind or seismic loads permitted in the Aluminum Association Specifications for Aluminum Structures will not be used. However, the adequacy of these design procedures is not well defined Pipe supports Pipe supports will be designed to resist the various forces to which the piping 88–22 will be subjected.
For design of structures associated with power plants, see applicable portions of TM Design of utility tunnels and similar underground structures will be af, accordance with ASTM C and ASTM C unless more stringent requirements are imposed by the agency having jurisdiction. Bridges for other specialized applications, such as pipeline supports, transit systems, etc.
In mine explosions, as in If constructed of concrete, design of these types of structures will be in accordance with ACIHandbook of Concrete Engineering by Fintel, and Silos: Additional guidance for watertight construction and load distribution coefficients for these types of structures may be found in PCA IS Designs will conform to the general concepts and practices of the proper design specification listed in this manual.
Mobile canopies and shelters will be designed for the loads which would otherwise apply to stationary structures of that type with additional provisions regarding impact 888-22 appropriate for the speed at which the structures are to be moved. Concrete and cementitious mortar can be reinforced with alkali-resistant, chopped-glass fibers, short steel fibers, or various organic plastic fibers to obtain enhanced strength, ductility, and toughness when compared to plan concrete and mortar.
The approval will apply to the specific project for which the special design use was requested and will not apply to other projects involving a similar application. Sources and General Considerations. Reprint or republications of this manual should include a credit substantially as follows: Underground structures Design of underground structures associated with water related facilities, e.
Additional consideration will be given to possible sfm increases which can result from irregularities in alignment of the support system over which the structures will be moved, e. Information describing any new load-tested materials or systems determined necessary, advantageous, and economical will be submitted for approval to appropriate headquarters.
For additional guidelines for concrete bridge structures, see ACI R. Fiber-reinforced concrete will be used only if approved by the appropriate headquarters. No corrosion allowance for corrosionresistant or weathering steel is required. Particular consideration will be given to corrosion-resistant design in seawater environments. The reference is mandatory for explosive safety design. Reinforced concrete stacks will be designed in accordance with ACI A proper drainage system will be provided for the following conditions or locations: General Design of water related structures will comply with the need to maintain watertight and durable construction.
General Criteria for Waterfront Construction. Fiber Reinforced Concrete- International Symposium. For that reason, it is important that the agency designing the support structure be familiar with the specifications applicable to the tank. Design of water storage tanks will be in accordance with applicable American Water Works Association publications but subject to specific design restrictions as set forth above.
Underground structures Underground structures associated with electrical and communication systems, e. Route Reconnaissance and Classification.