Note that both the shear and moment diagrams resemble your illustration. I made the semi-graphical solution shown below. The economy of the LAP SPLICE system is by design. Just two special bolts and a bar spacer are needed to join the top post to the base post. The LAP SPLICE is a ground- mounted breakaway system for any size SP-80 RIB-BAK U-channel. ![]() Redraw the shear and moment diagrams for the beam. Description Features Downloads The simplest, easiest-to-use and most economical breakaway signpost system. Redraw the free body diagram with the UDL and the point loads on the beam where each of the four fasteners are located. Moment at the splice location is 49.0 kip-ft.įor simplicity, the spice plates are connected to the beam with two fasteners on each side of the splice location.Įach pair of fasteners form a couple resisting 49.0 kip-ft. The single common feature of all the lap splices was the sheet material, aluminium alloy 2024-T3 Alclad. The splice is located 7' from the left end. The positions and configurations differed widely, and the B 747-400 lap splice was different again: a four rivet row design with a Z-stiffener along the lower inner row 1. An example is clearer than words:Īssume a 21' long spliced beam with simple supports, supporting a UDL of 1 kip/ft. Assume no friction between beam and splice plates. Noncontact lap splice can be applied as a full strength connection which is designed for 1.25 times the yielding strength of the connected DSC walls. Three types of connections between DSC walls and RC foundations. The couple on each side of splice have opposite signs. Download : Download high-res image (284KB) Download : Download full-size image Fig. On both sides of splice location, the fasteners form couples each couple resists moment equal to what would have been present in the beam at the splice location. Sturctee - The beam at the splice location can not resist moment.
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