The American Concrete Institute is publishing the complete draft of the proposed “ACI 318-19: Building Code Requirements for Structural Concrete” for a 45-day public review starting Dec. 21.
The proposed bypass fix for the troubled Fremont Street girders of San Francisco's Salesforce Transit Center calls for bolting 20-in.-wide steel cover plates above and below the fractured bottom flange, like a double splint.
Controlled implosions brought down the last structural vestiges of a former military docking and supply center in Bayonne, N.J., on Nov. 30, clearing the way for a 1.6-million-sq-ft logistics center.
The magnitudes 7.0 and 5.7 earthquakes that struck Anchorage, Alaska, on Nov. 30 shook buildings and shattered highways, but caused limited structural damage and no reported loss of life, mostly due to the depth and location of the quake’s epicenter, as well as the city and state’s stringent building requirements.
An independent panel of experts in steel structures, fracture mechanics and metallurgy is reviewing every step taken by the Transbay Joint Powers Authority team investigating the cause of two cracked girders at the Salesforce Transit Center in San Francisco.