When Eli and Edythe Broad gave a hard hat tour of the Broad Museum’s construction last week, invited guests and news media thought they would see soaring spaces and a flurry of construction activity. They got all of that and more, as the couple announced that upon completion in late 2014 admission to the museum will be free. John A. Martin & Associates has provided structural engineering on the building’s “veil”; a series of 2,500 white cast-concrete panels that make up the lacy facade. This honeycomb-like construction appears to hover over the building, and is almost an entirely separate structure from the facility’s “vault” as it is supported on three different points, including a 57-foot beam that plunges five feet below the sidewalk. This structural approach helps with seismic considerations since it was designed to (gently) rock independently from the rest of the building in the case of a seismic event.