The upper two illustrations in Fig. 2 are conservative
alternatives that afford connector overlap while still reducing
potential geometric interferences. Connection details
similar to each of those shown in Fig. 2 were tested in this
study, with a summary provided here and with dimensions
and extensive results provided in the associated report.
After the prefabricated components are assembled in the
appropriate configuration and the haunch is formed, the
UHPC is cast into the void to completely fill the haunch
connection. The self-leveling rheology of the UHPC allows
it to flow into the hidden connection and engage all
discrete connectors. Vent holes in the deck ensure that the
UHPC has completely filled the void. For simplicity of
field operations, it is advisable to combine this composite
connection concept with the UHPC panel-to-panel noncontact
lap splice connection discussed earlier