During the construction of the new third lane on the Richmond-San Rafael Bridge in California, the contractor contacted their local authorized Lindapter distributor, Glaser and Associates Inc, for guidance on how to secure multiple digital display boards and traffic signs to the steel WF beams on the bridge. They quickly received a free connection design from Lindapter’s technical support team which included the recommended Lindapter Girder Clamp solution and detailed drawings of the application. Each connection assembly consisted of four Type AAF clamps by Lindapter
and a location plate with slotted holes. The location plate was
pre-welded to the WT section of the sign’s support frame to speed up
the installation process.
The pre-assembled solution allowed the contractor to simply hook each
sign over a beam, before adjusting into position and tightening with
standard hand tools. The Type AAF clamps adjusted to suit the varying
flange thicknesses and the slotted holes in the location plates provided
further adjustability. This meant that the contractor could standardize
and repeat the process along the bridge, despite numerous different
sized beams.
