Page 96 - Handbook of Civil Engineering Calculations, Second Edition
P. 96
STATICS, STRESS AND STRAIN, AND FLEXURAL ANALYSIS 1.79
INVESTIGATION OF A LAP SPLICE
3
The hanger in Fig. 55a is spliced with nine /4-in. (19.05-mm) rivets in the manner shown.
Compute the load P that may be transmitted across the joint.
Calculation Procedure:
1. Compute the capacity of the joint in shear and bearing
There are three criteria to be considered: the shearing strength of the connection, the bear-
ing strength of the connection, and the tensile strength of the net section of the plate at
each row of rivets.
Since the load is concentric, assume that the load transmitted through each rivet is
1 /9P. As plate A (Fig. 55) deflects, it bears against the upper half of each rivet. Conse-
quently, the reaction of the rivet on plate A is exerted above the horizontal diametral plane
of the rivet.
Computing the capacity of the joint in shear and in bearing yields P SS 9(6630)
59,700 lb (265,545.6 N); P b 9(36,380)(0.375) 122,800 lb (546,214.4 N).
FIGURE 55
