D.S. Brown’s Swivel Expansion Joint Systems are one of the most intriguing features of the new Gerald Desmond Bridge in Long Beach, California. The Swivel Expansion Joint Systems are located where the east and west approaches connect to the main span of the bridge. At these “end bents,” the column-supported approaches meet the cable-supported main span. These two types of structures will react differently in an earthquake, and flexible connections are a must.
For joint locations that produce demanding structural movements, use the Maurer System™ Swivel Expansion Joint Assembly. The Maurer System is designed for use on long-span structures, structures located in seismic zones and curved structures. Additionally, structures with differential longitudinal movements (caused by wind, thermal and seismic conditions) or differential vertical movements, and structures with anticipated substructure settlement will benefit from this expansion joint.