NEHRP Clearinghouse

displaying 1 - 10 results in total 49

  • Igarashi, A.; Seible, F.; Hegemier, G. A.
    Development of the Generated Sequential Displacement Procedure and the Simulated Seismic Testing of the TCCMAR 3-Story In-Plane Walls.
    National Science Foundation, Arlington, VA., June 1993, 118 p.
    Keywords: Damage assessment; Walls; Japan; Earthquake damage; Moments; Degrees of freedom; Algorithms; Structural vibrations; Buildings; Earthquake engineering; Displacement; Deformation; Dynamic structural analysis; Dynamic response; Masonry buildings; Earthquake resistant structures; USA; Loads (Forces); Masonry; Generated Sequential Displacement Test Method; Structural gailure; International cooperation

  • Mehrabi, A. B.; Shing, P. B.; Schuller, M. P.; Noland, J. L.
    Performance of Masonry-Infilled R/C Frames under In-Plane Lateral Loads.
    National Science Foundation, Arlington, VA., October 1994, 272 p.
    Identifying Number(s): CU/SR-94/6
    Keywords: Prototypes; Stress strain relations; Earthquake damage; Strain gages; Frames; Shear stresses; Failure modes; Structural failure; Cracks; Algorithms; Infilled panels; Earthquake engineering; Structural components; Reinforced concrete; Displacement; Cyclic loads; Dynamic response; Lateral loads; Cracking (Fracturing); Masonry; Finite element method; Wall loading; Concrete structures; Structural analysis

  • Sadek, F.; Mohraz, B.
    Semi-Active Control Algorithms for Structures with Variable Dampers.
    October 1997, 50 p.
    Identifying Number(s): NISTIR-6052
    Keywords: ; Buildings; Earthquake engineering; Seismic design; Vibration damping; Algorithms; Accelerometers; Design; Dynamic structural analysis

  • Liu, H. H.; Fu, K. S.
    Syntactic Approach and VLSI Architectures for Seismic Signal Classification.
    January 1983, 217 p.
    Keywords: Computer programming; Seismic detection; Seismic reflection; Pattern recognition; Signal processing; Discrimination; Parallel processing; Damage assessment; Earthquakes; Data management; Syntactic seismic recognition; Data processing; State of the art; Computer architecture; Structural analysis; Algorithms; Underground explosions; Computer aided diagnosis; Seismic waves

  • Simons, J. W.; Powell, G. H.
    Solution Strategies for Statically Loaded Nonlinear Structures.
    National Science Foundation, Washington, DC., November 1982, 112 p.
    Identifying Number(s): UCB/EERC-82/22
    Keywords: ANSR-III computer program; Earthquake engineering; Earthquake resistant structures; Newton-Raphson method; Computer applications; Mathematical models; Algorithms; Nonlinear systems; Stiffness methods; Dynamic structural analysis

  • Waldhauser, F.
    hypoDD: A Program to Comput Double-Difference Hypocenter Locations (hypoDD Version 1.0 - 03/2001).
    January 2001, 30 p.
    Identifying Number(s): USGS/OFR-01-113
    Keywords: Data weighting; Error assessments; Output files; HypoDD; Double-difference algorithms; Utility programs; Earthquakes; Input files; Installation; Hypocenter locations; Epicenters; Syntax; Algorithms; Fortran computer program packages; Earthquake relocation; Data selection; Event clustering

  • Yang, J. N.; Akbarpour, A.
    Practical Considerations for Structural Control: System Uncertainty, System Time Delay, and Truncation of Small Control Forces.
    National Science Foundation, Washington, DC., August 10, 1987, 159 p.
    Identifying Number(s): NCEER-87-0018
    Keywords: Optimal control; Sensitivity analysis; Time lag; Earthquake engineering; Riccati equation; Graphs (Charts); Uncertainty; Structural analysis; Algorithms; Control systems; Structural control

  • Keilis-Borok, V. I.; Kronrod, T. L.; Molchan, G. M.
    Algorithm for the Estimation of Seismic Risk (Seismic Design Decision Analysis.
    National Science Foundation, Washington, DC. Engineering and Applied Science., December 1974, 36 p.
    Identifying Number(s): INTERNAL STUDY-46
    Keywords: Seismic waves; Ground motion; Poisson density functions; Earthquake engineering; Risk analysis; Seismic design; Earthquakes; Probability theory; Translations; Earth movements; Mathematical models; Algorithms; Seismic risk

  • Wu, Z.; Soong, T. T.; Gattulli, V.; Lin, R. C.
    Nonlinear Control Algorithms for Peak Response Reduction.
    National Science Foundation, Arlington, VA.; New York State Science and Technology Foundation, Albany., February 16, 1995, 91 p.
    Identifying Number(s): NCEER-95-0004
    Keywords: Earthquake engineering; Robustness (Mathematics); Optimization; Mathematical models; Algorithms; Peak responses; Control systems

  • Yang, J. N.; Li, Z.; Danielians, A.
    Hybrid Control of Seismic-Excited Nonlinear and Inelastic Structural Systems.
    National Center for Earthquake Engineering Research, Buffalo, NY.; National Science Foundation, Washington, DC., August 1, 1991, 123 p.
    Keywords: ; Dynamic response; Dynamic structural analysis; Bearings; Vibration isolators; Earthquake resistant structures; Earthquake engineering; Structural vibration; Feedback control; Numerical analysis; Vibration damping; Earth movements; Mathematical models; Algorithms; Rigid structures; Nonlinear systems; Seismic waves