ABSTRACT
The design and construction of joints and connections is the most important consideration in precast concrete structures. Failure of the joint should not, under any circumstances, lead to structural instability. It is therefore unfortunate to have to report that information on the design of joints for abnormal loading conditions in precast concrete structures is scarce - provisions to guard against this are only provided in the form of continuous column and floor ties, which in many cases bypass the joints. The design of the connection is therefore a function of both the structural elements and of the joints between them. There is a major sub-division between compression joints in plain concrete and those in reinforced concrete. Shear joints occur most frequently between 'panels' of significantly large surface area. Where reinforcing bars, bolts, studs, etc., are placed across joints, shear forces may be transmitted by 'dowel action' of the bars.
