![]() Merely move the mouse pointer to the desired cell to view the contents of that particular "comment box". (Note: presence of a “comment box” is denoted by a “red triangle” in the upper right-hand corner of a cell. This program contains numerous “comment boxes” which contain a wide variety of information including explanations of input or output items, equations used, data tables, etc. The "Rebar Data" worksheet contains tables of reinforcing bar data which include various bar properties, reinforcing bar areas based on spacing, tension development and splice lengths for straight bars, tension development lengths for 90 degree standard hooks, tension lap splice criteria, compression development and splice lengths for straight bars, maximum spacing for column ties, and various plain welded wire fabric properties.Ĥ. The whole construction is made of 1-mm (0.040-in.) thick 2024-T3 Al-clad sheet assembled with 4.2-mm (0.166-in.) diameter countersunk rivets. ![]() A lap splice joint, tear straps, and hat-shaped stringer/stiffeners are featured. ![]() A complete table of reinforcing bar development and splice lengths is also created for #3 through #18 bars.ģ. This article hopes to clarify tips to consider while calculating lap splice (or development) lengths, and best practices for detailing lap lengths on design. The panels have a built-up construction typical of metallic aircraft structures. Class A lap splices may be used where: (a) the area of reinforcement provided is at least twice that required by analysis over the entire length of the lap splice and (b) one-half or less of the total reinforcement is spliced within the required. The "Calc Development" worksheet, for a given reinforcing bar size, determines the straight development and splice lengths for a "top" bar and an "other" bar in tension, the straight development and splice lengths for the bar in compression, and the tension development length of the bar as a standard hook, all at one time. Except as specified herein, lap splices of deformed bars in tension shall be Class B lap splices. This program follows the procedures and guidelines of the ACI 318-05 Building Code, Chapters 12 and 21.Ģ. Contact lap splices are usually specified because the likelihood that the bars will displace they do not exceed the maximum spacing defined in Section during concrete placement is much smaller than that for 25.5.1.3 (ACI 318-14 and ACI 318-19), will perform as well noncontact splices (p.
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