The revision will be written to retain its open distribution, thereby providing an invaluable source of information to both government and private sector engineers. When first published in , TM Department of the Air Force, represented the state-of-the-art in the analysis and design of blast resistant structures. Based primarily on explosive tests of reinforced concrete walls, the manual provided a comprehensive introduction to the blast design process including load calculation, dynamic analysis, structural design, and detailing. Revision 1, published in , updated and expanded the manual to include structural steel, masonry, and other materials. Since , the increased computational capacity of mainframe and personal computers has revolutionized both conventional and blast resistant design.
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Revision 1 is a significant change to this tri-Service manual. It supersedes Change 1 of 17 March and provides design critsria for a wide assortment of construction materials. Blast resistant capacities of selected, pre- engineered facilities and suppressive shields are now formally recognized. Single leg stirrups with degree bends are permitted for rotations up to eight degrees for Category 2 protection.
Membrane stresses are recognized for the reserve strength they provide as dynamic rotations increase. Many individuals. Norval Dobbs,. Contributions from Mr. Zaker are particularly worthy of. Design procedures in this manual are recognized by DOD The design. Nevertheless, in a work of this magnitude it is expected that there may be points which require further verification or modification as a result of future tests and experience. This manual has been prepared by or for.
If the reprint or republication contains copyrighted material, the credit should also state: "Anyone wishing to make further use of copyrighted materi- al, by itself and apart from this text, should seek nec'essary permission directly from ths proprietors. Safety Factor. System Components. Donor System. Protection Categories. Systems Protective ,Structures. Structural Motion. Equipment Tolerance. Blast Pressures. Structural Motion and Shock. Tolerance of. Structural Response. Pressure Design Ranges.
Analyzing Blast Environment. Scope' ;. Format General Effects of Explosive Output. Blast-Loading Categories Blast Loading Protection. Unconfined Explosions. Blast Phenomena Confined Explosion. Free Air Burst. Air Burst. Multiple Explosions. Confined Explosions. Effects of Confinement. Shock Pressures. External Blast Loads on Structures.
Structure Without Openings Structures with Openings. Ground Rectangular. In Structures. Initial Fragment Velocity. Fragment Mass Distribution. Variation of Fragment Velocity with Distance. Primary Fragments Angle. Velocity of Unconstrained Secondary Fragments. Ground Shock. Resistance-Deflection Functions for Design. Limited Deflections. Large Deflections. Support Shears. Design Factors. Load, Mass,.
Period of Vibration. Elements Which Respond to. Analysis by Numerical Methods. Design Charts. Idealized Loadings. Determination of Time to Reach Maximum Deflection. Structural Behavior of Reinforced Concrete. Ductile Mode of Behavior in the. Far' Design Range. Stress-Strain Curve Allowable Material. Dynamic Design Stresses.
Dynamic Design. Elasticity Concrete Reinforcing Steel. Modular Ratio. Ultimate Moment Capacity,. Section Type I Section Types. II and III. Flexural Reinforcement. Shear Stress,. Shear Reinforcement. Direct Shear Capacity.
Punching Shear. Direct Shear Capacity of Concrete. Design'of Diagonal Bars. Punching Shear Capacity of Concrete. Punching Shear Stress. Conventionally Reinforced Concrete. Development Length for Reinforcement in Tension. Laced :Reinforced Concrete ,Elements. Lap Splices of Reinforcement. Mechanical Splices. Distribution of Flexural Reinforcement. Flexural Design for.
Design for. Welding of Reinforcement Bundled Reinforcing Bars. Optimum Total. Optimum Reinforcement Distribution. Percentage of Reinforcement. Small Deflections. Dynamic Analysis. Flexural Design. Shock Load. Ultimate Shear Stress.
TM 5-1300 Structures to Resist the Effects of Accidental Explosions
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