Los Angeles Mayor Eric Garcetti has proposed major investments to retrofit older buildings to make them more resilient to earthquakes. The ambitious program would focus on some apartment buildings built before 1978 and concrete buildings constructed before 1976.
The plan also includes upgrading the city's water infrastructure. Garcetti said retrofits would cost billions of dollars, which would be borne by the public and private sectors.
The measures target pre-1978 apartment buildings with weak first floors, many of which were built over parking garages supported by narrow columns. Landlords would have to upgrade these structures within five years, costing an estimated $5,000 per unit.
Pre-1976 concrete buildings with columns and frame connectors that are brittle and can break during an earthquake would have to be upgraded within 25 years at an estimated cost of $10 to $15 a square foot. The proposal requires City Council approval.
(http://www.reuters.com/article/2014/12/09/us-usa-earthquake-california-idUSKBN0JN02D20141209)
Related Stories
| Mar 8, 2012
Engineering innovation provides new option for meeting seismic codes in skyscrapers
Two University of Toronto engineers have developed “viscoelastic-energy-dissipating dampers” to replace many of the heavy concrete beams used in tall structures.
| Mar 8, 2012
CSI webinar on building code compliance March 22
A March 22 webinar will provide an overview of a 28-step process during the design of a building to ensure compliance with building codes.
| Mar 8, 2012
Federal silica dust rule caught in bureaucratic limbo
A federal rule meant to protect the lungs of workers has been caught in bureaucratic purgatory for more than a year.
| Mar 8, 2012
New LEED-EBOM rating has requirements for specific project types
Several key changes are proposed for the LEED-EBOM Rating System in 2012.
| Mar 8, 2012
Green buildings more resilient than conventionally built structures
A new study by the U.S. Green Building Council (USGBC) and the University of Michigan’s Taubman College of Architecture and Urban Planning suggests that structures built to green standards can advance building resiliency.
| Mar 1, 2012
LEED Platinum standard likely to mean net-zero energy by 2018
As LEED standards continue to rise, the top level, LEED Platinum, will likely mean net-zero energy construction by 2018.
| Mar 1, 2012
EPA beefs up stormwater discharge rule from construction projects
The U.S. Environmental Protection Agency (EPA) has now finalized its 2012 construction general permit (CGP) that authorizes stormwater discharges from construction projects that disturb one or more acres of land in the areas where EPA is the permitting authority.
| Mar 1, 2012
Regulators investigate structural failures during construction of two Ohio casinos
Regulators with the Occupational Safety & Health Administration and the city of Cincinnati are investigatingthe collapse of the second floor of Cincinnati's Horseshoe Casino as workers were pouring concrete.