![]() ![]() The Engineer/Designer of Record must evaluate and determine the adequacy of the coiled strap’s lap splice and alternative nailing applications to meet their design loads.15.2 Spacing The minimum spacing shall meet NYSDOT LRFD Bridge Design Specification Section 5.10.3.1 requirements. Also included are suggested details intended to ease the construction process and provide seismic resistance. The highest allowable load given for each model is limited by the steel capacity. The tables in this section simplify the design and detailing of concrete reinforcement splices and required covers. The Allowable Loads for Alternative Nailing table provides information for coiled straps when installed with different nailing schedules. Lap Splicing Lap splicing of coiled straps can be used to extend standard strap lengths for designing continuous drag elements and diaphragm chord members.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. Lap splicing of coiled straps can be used to extend standard strap lengths for designing continuous drag elements and diaphragm chord members.When two segments of reinforcing bars overlap to create a continuous reinforcement and wire tied them together, this assists in transferring loads properly through the structure. If wood tends to split, fill only round hole and double the end length listed for full load. Traditional Lap splice bar is the most common method and economic splice employed in the construction. Fill round and triangle holes for loads shown.Use only every other round hole if the wood tends to split.The cut length of the strap shall be equal to twice the “End Length” noted in the table plus the clear span dimension.(ratio fsL/fyL in Table 2), a lap splice length of 20 bar diameters is not. ![]() For lap splice and alternative nailing information, see tables below. Hence, based on the calculated steel stresses corresponding to peak lateral force.Fewer nails may be used reduce the allowable load as shown in the Straps and Ties General Notes. The table shows the maximum allowable loads and the nails required to attain them.In Table 25.4.2.3, d is based on two preselected values of (cb+ Ktr)/db, whereas d. Refer to the applicable code for minimum nail penetration and minimum wood edge and end distances. 2.4a)), which is based on the expression previously endorsed by ACI 408.1R.Wood shrinkage after strap installation across horizontal wood members may cause strap to buckle outward.Use all specified fasteners see General Notes. ![]()
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