Progressive failure analysis of low-rise timber buildings under extreme wind events using a DAD approach

Abstract This paper discusses the interaction of low-rise timber buildings with wind loads under significant wind events such as hurricanes. The proposed analysis methodology is capable of predicting the progressive failure of low-rise buildings as a result of the wind-structure interaction for a cost-effective design. It will also assist in evaluating the wind intensity from the observed damage state of buildings. Two deterministic finite-element (FE) models are developed using ANSYS for the full-scale numerical simulation. The first model with a simple building configuration is used for the validation of a numerical modeling methodology in the ultimate failure range. It also serves to validate the proposed progressive failure analysis process via the calibration from the corresponding wind tests that can simulate failures. Then, this analysis methodology is used to study the successive stages of damage on the second model to unveil its potential applications on a more representative residential buildings in U.S. Spatiotemporally varying wind loads are applied with the purpose of expanding the application of database-assisted design (DAD) approach from the linear range to the nonlinear range and finally to the stage-wise failures, which is a necessity of the vulnerability assessment and is critical for the damage and loss prediction for the insurance industry.

[1]  Shalva Marjanishvili,et al.  COMPARISON OF VARIOUS PROCEDURES FOR PROGRESSIVE COLLAPSE ANALYSIS , 2006 .

[2]  Murray J. Morrison,et al.  Full-scale testing of low-rise, residential buildings with realistic wind loads , 2012 .

[3]  Vinay Dayal,et al.  Finite element analysis of interaction of tornados with a low-rise timber building , 2011 .

[4]  David J. Henderson,et al.  Wind load fluctuations on roof batten to rafter/truss connections , 2018 .

[5]  John W. van de Lindt,et al.  New Nonlinear Roof Sheathing Fastener Model for Use in Finite-Element Wind Load Applications , 2008 .

[6]  David Henderson,et al.  Failure mechanisms of roof sheathing under fluctuating wind loads , 2013 .

[7]  Feng Fu,et al.  3-D nonlinear dynamic progressive collapse analysis of multi-storey steel composite frame buildings — Parametric study , 2010 .

[8]  Ahsan Kareem,et al.  A prototype online database-enabled design framework for wind analysis/design of low-rise buildings , 2016 .

[9]  Bing Li,et al.  Load-resisting mechanism to mitigate progressive collapse of flat slab structures , 2015 .

[10]  Murray J. Morrison,et al.  The response of a wood-frame, gable roof to fluctuating wind loads , 2012 .

[11]  G. Kopp,et al.  The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 2. Comparison of data with wind load provisions , 2005 .

[12]  Rakesh Gupta,et al.  Database-assisted design methodology to predict wind-induced structural behavior of a light-framed wood building , 2011 .

[13]  G. Bitsuamlak,et al.  Large-Scale Experimentation Using the 12-Fan Wall of Wind to Assess and Mitigate Hurricane Wind and Rain Impacts on Buildings and Infrastructure Systems , 2017 .

[14]  David Surry,et al.  WIND LOAD TESTING OF LOW BUILDINGS TO FAILURE AT MODEL AND FULL-SCALE , 2005 .

[15]  Joseph A. Main,et al.  Wind Effects on Low-Rise Metal Buildings: Database-Assisted Design versus ASCE 7-05 Standard Estimates , 2010 .

[16]  Jeffrey J. Morrell,et al.  Effects of Decay on the Cyclic Properties of Nailed Connections , 2005 .

[17]  John D. Ginger,et al.  Tropical Cyclone Larry: Estimation of Wind Field and Assessment of Building Damage , 2007 .

[18]  F. Pan.  Damage prediction of low-rise buildings under hurricane winds , 2014 .

[19]  C. S. Cai,et al.  Refined damage prediction of low-rise building envelope under high wind load , 2014 .

[20]  Arindam Gan Chowdhury,et al.  Comparisons of Two Wind Tunnel Pressure Databases and Partial Validation against Full-Scale Measurements , 2014 .

[21]  Fahim Sadek,et al.  Achieving safer and more economical buildings through database-assisted, reliability-based design for wind , 2003 .

[22]  Murray J. Morrison,et al.  Performance of toe-nail connections under realistic wind loading , 2011 .

[23]  Emil Simiu,et al.  The use of aerodynamic databases for the effective estimation of wind effects in main wind-force resisting systems: , 1998 .

[24]  Vinay Dayal,et al.  Failure of wood-framed low-rise buildings under tornado wind loads , 2012 .

[25]  N. Null.  Minimum Design Loads for Buildings and Other Structures , 2003 .

[26]  Ahsan Kareem,et al.  Relation between Saffir–Simpson Hurricane Scale Wind Speeds and Peak 3-s Gust Speeds over Open Terrain , 2007 .

[27]  Y H Chui,et al.  Fastener head pull-through resistance of plywood and oriented strand board , 2002 .

[28]  David O. Prevatt,et al.  Statistical and analytical models for roof components in existing light-framed wood structures , 2009 .

[29]  Jing He,et al.  A review of wood-frame low-rise building performance study under hurricane winds , 2017 .