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  1. Wave absorbing-boundary method in seismic centrifuge simulation of vertical free-field ground motion

    26 Mar 2013 | Citations | Contributor(s): Mahdi Soudkhah, R.Y.S. Pak

    An evaluation of the method of experimental seismic simulation of coupled horizontal and vertical free-field groundmotion by wave-absorbing boundary and centrifuge modeling is presented. By means of a large soil containerwith Ductseal lining and an in-box shake-table system, a series of seismic...

  2. WeiSong Dissertation

    22 Oct 2012 | Citations | Contributor(s): Wei Song

    http://docs.lib.purdue.edu/dissertations/AAI3481154/ Dynamic model updating is a technique to investigate the status of a structure by using dynamic information identified from structure vibrational data. By satisfying certain cri-teria based on modal information of the structure, the dynamic...

  3. A Major Research Accomplishment in Geotechnical Earthquake Engineering Simulation

    17 Apr 2013 | Citations | Contributor(s): Mahdi Soudkhah

    An innovative experimental framework for seismic soil-structure interaction investigation of foundations and structures subjected to a coupled horizontal and vertical ground motion disturbance was developed by Dr. Mahdi Soudkhah at the University of Colorado at Boulder. A series...

  4. Wind Tunnel Tests for Wind-Excited Benchmark Building

    07 Apr 2014 | Citations | Contributor(s): Ali Irmak Ozdagli

    This paper presents an overview of the wind tunnel studies conducted at the boundary layer wind tunnel facility at the University of Sydney to determine across-wind forces acting on the 76-story 306 m high benchmark building. The paper briefly describes the boundary layer wind tunnel and its...

  5. The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 1. Archiving format and basic aerodynamic data

    02 Sep 2014 | Citations | Contributor(s): T.C.E. Ho, D. Surry, D. Morrish, G.A. Kopp

    Wind tunnel testing of generic low building models has been carried out at the University of Western Ontario (UWO) in support of an initiative by Texas Tech University (TTU) and the United States National Institute of Standards and Technology (NIST) to create an aerodynamic database for low...

  6. The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 2. Comparison of data with wind load provisions

    02 Sep 2014 | Citations | Contributor(s): L.M. St. Pierre, G.A. Kopp, D. Surry, T.C.E. Ho

    Wind tunnel test data on generic low buildings have been obtained at the University of Western Ontario (UWO) to contribute to the NIST aerodynamic database. In Part 1 the basic data and archiving format are presented. In the present paper, data from two models of different roof slope (1:12 and...

  7. The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 3. Internal pressures

    02 Sep 2014 | Citations | Contributor(s): Jeong Hee Oh, Gregory A. Kopp, Diana R. Inculet

    Wind tunnel tests of generic low buildings have been conducted at the University of Western Ontario for contribution to the National Institute on Standards and Technology (NIST) aerodynamic database. Part 1 provided the archiving format and basic aerodynamic data. In Part 2, the data of external...

  8. Prediction of pressure coefficients on roofs of low buildings using artificial neural networks

    26 Sep 2014 | Citations | Contributor(s): Y Chen, G.A Kopp, D Surry

    This paper describes an artificial neural network (ANN) approach for the prediction of mean and root-mean-square (rms) pressure coefficients on the gable roofs of low buildings. The ANN models, which employ a backpropagation training algorithm, are capable of generalizing the complex, nonlinear...

  9. Interpolation of pressure coefficients for low-rise buildings of different plan dimensions and roof slopes using artificial neural networks

    26 Sep 2014 | Citations | Contributor(s): X. Gavalda, J. Ferrer-Gener, Gregory A. Kopp, Francesc Giralt

    Database-assisted design (DAD) is emerging as an important tool to design buildings for wind effects. However, there is a need for robust interpolation methods for pressure coefficients to extend the range of conditions beyond those in the aerodynamic database from wind tunnel experiments. An...