The current version of NSBA Splice (v3.15) was released in April, 2023 ( Release Notes). Figure 1: Exterior/interior splice plates to square/rectangular HSS The concept of using blind bolts with HSS, in which the fastener is inserted and tightened from one side (the outside) without a nut on the inside (the blind side), has become popular and a number of fastener devices have been advocated (Packer and Henderson, 1997). Both the design guide and spreadsheet are current to the AASHTO LRFD 9th Edition specification. The download includes a blank design spreadsheet as well as two completed examples drawn from the inputs and solutions for Examples 1 and 2 presented in Bolted Field Splices for Steel Bridge Flexural Members design guide. NSBA Splice is presented in an easy to understand Microsoft Excel spreadsheet format. Based upon the updated AASHTO LRFD 8th Edition, NSBA Splice allows the user to explore the effects of bolt spacing, bolt size, strength, and connection dimensions on the overall splice design. Then the bending resistance is M y p l 24.74 kN m and the axial resistance is N p l 632.8 kN. The steel grade was S235 but the actual yield stress was measured to be 298 N/mm 2. NSBA Splice can be incorporated as a design tool on plate girder bridges allowing the designer to quickly analyze various bolted splice connections to determine the most efficient bolt quantity and configuration. 1 shows an end plate connection and splice type II has cover plates on the web and the flanges. NSBA Splice takes the time-consuming task of designing and checking a bolted splice connection and rewrites the process with a simple input page and output form.
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