NEHRP Clearinghouse

displaying 21 - 30 results in total 68

  • Lin, J.; Mahin, S. A.
    Effect of Inelastic Behavior on the Analysis and Design of Earthquake Resistant Structures.
    National Science Foundation, Washington, DC., June 1985, 164 p.
    Identifying Number(s): UCB/EERC-85/08
    Keywords: Evaluation; Earthquake resistant structures; Viscosity; Design; Damage; Damping; Ground motion; Earthquake engineering; Elastic properties

  • Suarez, L. E.; Singh, M. P.
    Eigenproperties and Response of Primary Structure and Equipment Systems by Perturbation Approach.
    National Science Foundation, Washington, DC., April 1986, 116 p.
    Identifying Number(s): VPI-E-86-9
    Keywords: Measuring instruments; Floors; Secondary systems; Supports; Damping; Electric power plants; Perturbation; Earthquake engineering; Earthquakes; Seismic surveys; Responses; Equipment; Vibrations; Structure engineering; Dynamic structural analysis

  • Lienert, B. R.; Berg, E.; Frazer, L. N.
    Hypocenter: An Earthquake Location Method Using Centered, Scaled, and Adaptively Damped Least Squares.
    June 1986, 15 p.
    Identifying Number(s): HIG-CONTRIB-1712
    Keywords: Equations; HYPOCENTER model; Velocity; Arrival time; Seismic velocity; Seismic data; Damping; Time; Earthquakes; Position (Location); Travel time; Algorithms; Seismic arrays; Mean; Reprints; Variables; Epicenters; Adaptive systems; Iterations; Least squares method

  • Beck, R. T.; Beck, J. L.
    Comparison between Transfer Function and Modal Minimization Methods for System Identification.
    National Science Foundation, Washington, DC. Directorate for Engineering., November 1985, 72 p.
    Identifying Number(s): EERL-85-06
    Keywords: Ten degrees of freedom; Oscillations; Structural vibration; Modal response; Mathematical models; Damping; Parameter estimation; Ground motion; Earthquake engineering; Buildings; System identification; Resonant frequency; Optimization; Comparison; Transfer functions

  • Yong, Y.; Lin, Y. K.
    Parametric Studies of Frequency Response of Secondary Systems under Ground-Acceleration Excitations.
    National Science Foundation, Washington, DC., June 10, 1987, 42 p.
    Identifying Number(s): NCEER-87-0012
    Keywords: Earthquake resistant structures; Damping; Seismology; Ground motion; Frequency response; Excitation; Displacement; Acceleration (Physics); Tuning; Dynamic structural analysis

  • Thewalt, C. R.; Mahin, S. A.
    Hybrid Solution Techniques for Generalized Pseudodynamic Testing.
    National Science Foundation, Washington, DC., July 1987, 145 p.
    Identifying Number(s): UCB/EERC-87/09
    Keywords: Equations of motion; Control equipment; Pseudodynamic testing; Damping; Dynamic tests; Computer applications; Actuators; Earthquake engineering; Displacement; Reliability; Tests

  • Yang, J. N.; Sarkani, S.; Long, F. X.
    Model Analysis of Nonclassically Damped Structural Systems Using Canonical Transformation.
    National Science Foundation, Washington, DC., September 27, 1987, 72 p.
    Identifying Number(s): NCEER-87-0019
    Keywords: Equations of motion; Numerical integration; Vibration; Damping; Dynamic response; Ground motion; Earthquake engineering; Transformations; Functions (Mathematics); Seismic effects; Structural analysis

  • Yang, J. N.; Sarkani, S.; Long, F. X.
    Response Spectrum Approach for Analysis of Nonclassically Damped Structures.
    National Center for Earthquake Engineering Research, Buffalo, NY.; National Science Foundation, Washington, DC., April 22, 1988, 64 p.
    Keywords: Earthquake resistant structures; Damping; Graphs (Charts); Dynamic response; Dynamic structural analysis; Ground motion; Mechanical properties; Seismic effects; Earthquakes; Nonclassical damping

  • Manolis, G. D.; Juhn, G.; Reinhorn, A. M.
    Experimental Investigation of Primary-Secondary System Interaction.
    National Science Foundation, Washington, DC., May 27, 1988, 56 p.
    Identifying Number(s): NCEER-88-0019
    Keywords: ; Simulators; Earthquake resistant structures; White noise; Damping; Seismology; Graphs (Charts); Secondary waves; Primary waves; Soil dynamics; Seismic effects; Dynamic structural analysis

  • Lin, R. C.; Liang, Z.; Soong, T. T.; Zhang, R. H.
    Experimental Study of Seismic Structural Response with Added Viscoelastic Dampers.
    National Science Foundation, Washington, DC., June 30, 1988, 78 p.
    Identifying Number(s): NCEER-88-0018
    Keywords: ; Earthquake resistant structures; Vibration; Damping; Graphs (Charts); Dynamic response; Ground motion; Mechanical properties; Loads (Forces); Seismic effects; Viscoelasticity; Dynamic structural analysis