Fragility Assessment of Light-Frame Wood Construction Subjected to Wind and Earthquake Hazards

A fragility analysis methodology is developed for assessing the response of light-frame wood construction exposed to stipulated extreme windstorms and earthquakes. Performance goals and limit states (structural and nonstructural) are identified from a review of the performance of residential construction during recent hurricanes and earthquakes in the United States. Advanced numerical modeling tools provide a computational platform for risk analysis of light-frame wood building structural systems. The analysis is demonstrated for selected common building configurations and construction (defined, e.g., by roof sheathing, truss spacing, and roof or shear wall nailing patterns). Limit state probabilities of structural systems for the performance levels identified above are developed as a function of 3-s gust wind speed (hurricanes) and spectral acceleration (earthquakes), leading to a relation between limit state probabilities and the hazard stipulated in ASCE Standard 7, “Minimum design loads for buildings ...

[1]  B. Folz,et al.  Cyclic Analysis of Wood Shear Walls , 2001 .

[2]  Bruce R. Ellingwood,et al.  Probability Based Load Criteria: Load Factors and Load Combinations , 1982 .

[3]  Bruce R. Ellingwood,et al.  Performance-Based Engineering of Wood Frame Housing: Fragility Analysis Methodology , 2002 .

[4]  Bruce R. Ellingwood,et al.  Acceptable risk bases for design of structures , 2001 .

[5]  Billy R. Manning,et al.  Hugo - Lessons Learned , 1991 .

[6]  David V. Rosowsky,et al.  Reliability-based Seismic Design of Wood Shear Walls , 2002 .

[7]  David V. Rosowsky,et al.  Reliability of Light-Frame Roofs in High-Wind Regions. II: Reliability Analysis , 1999 .

[8]  Emil Simiu,et al.  Database-Assisted Design, Standardization, and Wind Direction Effects , 2001 .

[9]  Jun Hee Kim.  Performance-based seismic design of light-frame shearwalls , 2003 .

[10]  Timothy A. Reinhold,et al.  Wind damage to envelopes of houses and consequent insurance losses , 1994 .

[11]  Bruce R. Ellingwood,et al.  Probability-based codified design: past accomplishments and future challenges , 1994 .

[12]  Xxyyzz,et al.  Minimum Design Loads for Buildings and Other Structures , 1990 .

[13]  Bruce R. Ellingwood,et al.  Wind Load Statistics for Probability-Based Structural Design , 1999 .

[14]  James R. McDonald,et al.  The development of wind damage bands for buildings , 2000 .

[15]  Bruce R. Ellingwood,et al.  System Reliability and Load‐Sharing Effects in Light‐Frame Wood Construction , 1991 .

[16]  D. V. Rosowsky,et al.  Probabilistic Modeling of Roof Sheathing Uplift Capacity , 1996 .

[17]  Bruce R. Ellingwood,et al.  Duration of Load Effects in LRFD for Wood Construction , 1991 .

[18]  C. Allin Cornell,et al.  Probability Based Load Criteria: Assessment of Current Design Practice , 1982 .

[19]  Dana P. Mizzell.  Wind Resistance of Sheathing for Residential Roofs , 1994 .

[20]  C. V. Anderson,et al.  The Federal Emergency Management Agency (FEMA) , 2002 .

[21]  David V. Rosowsky,et al.  Reliability of Light-Frame Roofs in High-Wind Regions. I: Wind Loads , 1999 .