New research led by an MIT graduate student at the school’s Concrete Sustainability Hub suggests that the value of buildings constructed to resist wind damage in hurricanes may be significantly underestimated.
The research found that the failure of wind loss models to account for neighborhood texture—the density and configuration of surrounding buildings—may result in a more than 80% undervaluation of structures built with stronger construction methods in Florida. Hazus, a loss estimation tool used by the Federal Emergency Management Agency (FEMA), estimates physical and economic damage to buildings due to wind and the impact of windborne debris.
The tool assumes that all buildings in a neighborhood experience the same wind loading, but buildings come in many different shapes and sizes can be arranged in numerous ways. Their configuration and positioning can amplify or reduce the wind load on buildings within the neighborhood.
In a model developed by MIT researchers, the texture-related loss implications were found to be higher in census tracts along the coast. These areas tend to be more dense and ordered, leading to higher wind load amplifications. Loss implications are particularly high for single-family homes, which are more susceptible to damage and have a higher replacement cost per housing unit.
Related Stories
Codes and Standards | Apr 5, 2018
In Houston, proposed rules would require building above 500-year flood level
Change would impact 85,739 pieces of property.
Codes and Standards | Apr 4, 2018
New ASTM standard supports stucco use in construction
Provides way to measure tensile strength in vertical applications.
Codes and Standards | Apr 3, 2018
LEED v4.1 O+M for Existing Buildings available for beta testing
Update said to be most inclusive and transparent platform to date.
Codes and Standards | Apr 2, 2018
Experts chosen for ICC, ANCR buildings resilience benchmarks project
Specialists to focus on community preparedness for disasters.
Codes and Standards | Mar 29, 2018
Contractors have paid $5.2 million for failing local resident employee mandate on Detroit arena
Companies were only able to meet half of the 51% local worker requirement over course of the project.
Codes and Standards | Mar 28, 2018
Washington State moving to promote mass timber construction with legislation
Bill would require all 12-story or less public buildings to be built with mass timber.
Codes and Standards | Mar 27, 2018
Los Angeles appoints its first chief design officer
Responsibility for enhancing civic architecture and urban design.
Codes and Standards | Mar 26, 2018
National Roofing Contractors Assn., releases updates to its Roof Wind Designer app
Significant changes to online wind-load calculator.
Codes and Standards | Mar 22, 2018
Global construction waste to almost double by 2025
Concerns in Houston, Minnesota over environmental impacts.
Codes and Standards | Mar 21, 2018
Cape Town, South Africa’s dire water supply crisis raises concerns in the U.S.
Los Angeles, Salt Lake City, and Miami among cities at risk for water shortages.