![]() ![]() How can I tell if a bar was spliced with the 'B' or 'C' lap splice lengths per the table? Can anyone shed any light on this? I trued searching for chapter 12 of ACI 318-83 but can't find it. The Allowable Loads for Alternative Nailing table provides information for coiled straps when installed with different nailing schedules. Can anyone shed any light on this? Also this statement is confusing to me. The analyzer code was then used to read the input data and perform the lapping pattern generation, cutting pattern generation and optimization operations. The Strap Lap Splices table provides the minimum splice length (Lsp) and fasteners, within the splice length, to achieve the highest allowable capacity of the strap. There is then a table that gives lap splice lengths for Class 'B' and Class 'C' for both 'top' and 'other' bars.įirst off I'm not sure what are Class 'C' lap splices. Use Table 3 and Table 4 to determine lap splice lengths for bars in tension unless the designer performs more refined calculations of lap splices as. THE LENGTH OF LAP SPLICES SHALL BE CLASS "B" WHERE NO MORE THAN 1/2 THE BARS ARE LAP SPLICED WITHIN THE LENGTH TABULATED BELOW AND CLASS "C" WHERE MORE THAN 1/2 THE BARS ARE LAP SPLICED WITHIN THE LENGTH TABULATED BELOW." (12.15) The the work sheet provided in the next page of tension lab splices. The minimum lengthls not less than 12 inches is:Class A: ls 1.0ldClass B: ls 1.3ld ACI Sect. "UNLESS CALLED OUT OTHERWISE ON THE PLANS. Two classes of lap splices are specified by the ACI Code. In the general notes section for the rebar lap splices I see this statement: CRSI’s Reinforcement Anchorage and Splices includes tables of required lap splice lengths based on these variables. The length of the lap varies depend on concrete strength, the rebar grade, size, and spacing. In Table 25.4.2.3, d is based on two preselected values of (cb+ Ktr)/db, whereas d. Lap Splices A lap is when two pieces of reinforcing bar (rebar) are overlapped to create a continuous line of rebar. ![]() ![]() I can't find any information on the design code used but I would guess the ACI 318-83 that was revised in 1986. 2.4a)), which is based on the expression previously endorsed by ACI 408.1R. Splice length was set at 20 times the bar diameter throughout the investigation to ensure that bond failure would. I'm reviewing an existing concrete and masonry structure that was designed in 1989. Lap splice lengths (minimum of 12 inches) are multiples of tension development lengths Class A 1 d and Class B 1 d (ACI 318 25.5). 4, with details of dimensions in Table 1. ![]()
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