... with experimental results using the proportional jerk coefficient showed good agreement. The greatest differences were when the ratio of loading frequency to the natural frequency of the structure, considering the damping ratio, was greater than 6.75. The effect of earthquakes as loads on structures, considering...

..., amplitude-dependent damping ratios of the building were estimated by the random decrement method. Dynamic characteristics obtained from the field measurements were compared with those calculated from the finite-element model of the structure. The serviceability of the tall building was then analysed based...

... when subjected to strong wind. 3. Besides de-tuning, the seismic response may also be reduced by increasing the damping capacity of the structure. A number of specially designed damping systems have been developed.2 These may be classi ed into active and passive systems. Active systems are the most...

... FREQUENCIES DAMPING MODELLING TESTS BEAMS DAMPED UNDAMPED LOADS MODELS RUGBY SPORTS FACILITIES DYNAMIC LABORATORIES SPRUNG MASS SYSTEMS TWICKENHAM UK Human structure interaction in vertical vibrations B. R. Ellis, BSc, PhD, CEng, MIStructE and T. Ji, BSc, MSc, PhD, C. Eng...

... technique to reinforced concrete. Furthermore, the presence of damping, which is often ignored in simple dynamic models, is also included here. Calibration of the proposed model to existing test results and sophisticated nonlinear finite-element methods illustrates excellent correlation. Notation b width...

... PURE FRICTION SLIDING STOCHASTIC STUDIES RESPONSES ISOLATION DAMPING EXPERIMENTS IMPLEMENTATION Proc. Instn Ciu. Engrs Structs & Bldgs. 1995.110, May, 186-203 Structuranl d Building Board Structural Panel Paper 10654 Wtitten discussion closes ISJuly 1995 R. S.Jangid. Lecturer. Indian...

...J M W BROWNJOHN © Thomas Telford and ICE 1994 NANYANG TECHNOLOGICAL UNIVERSITY SINGAPORE BRIDGES SUSPENSION DAMPING ESTIMATION MEASUREMENT DATA STRUCTURES ENERGY DISSIPATION VALUE DYNAMIC ANALYSIS STRUCTURAL HYSTERESIS FRICTION STICTION TOWERS PIERS AERODYNAMICS...

...A K H KWAN; Y K CHEUNG; X L LU © Thomas Telford and ICE 1994 HONG KONG UNIVERSITY CONCRETE REINFORCED WALLS SHEAR SLIT BEAMS CONNECTING BEHAVIOUR CYCLIC TESTS DUCTILITY CRACKING FAILURES REINFORCEMENT STRESS DISTRIBUTION STIFFNESS STRENGTH DEGRADATION DAMPING...

... FATIGUE CRACKS FATIGUE LIFE CABLES DECKS WIRE FRACTURE ASPHALT SURFACING RESURFACING COMPOSITE ACTION STEEL PLATES BOX GIRDERS DESIGN CABLES VIBRATIONS RIVERS OSCILLATIONS HYSTERESIS DAMPING SEVERN ENGLAND WALES UK Strengthening and refurbishmeonft Severn Crossing...

.... Finally, turbulent wind-simulated by staticforces Cowi Consult designed a tune-mass damperfor representing each of the first threemodes- Monberg and Thorsen-one for each of the two produce neither de-tensions nor overstresses in cantilevers-specially adapted to the limitation the damping ropes...

...M RAOOF; YU PING HUANG; Y P HUANG © Thomas Telford and ICE 1993 CABLES STEEL LATERAL VIBRATIONS STRUCTURAL DAMPING Corrigenda RAOOF M. and YU PING HUANG. Lateral vibrations of steel cables including structural damping. PYOCI.nstn Civ. Engrs Structs & Bldgs, 1993, 99, May, 123-133 h...

...M RAOOF; Y P HUANG; YU PING HUANG © Thomas Telford and ICE 1993 SOUTH BANK UNIVERSITY CABLES STEEL LATERAL VIBRATIONS STRUCTURAL DAMPING PREDICTION STRANDS RATIOS VORTEX SHEDDING BEHAVIOUR SPIRAL FREE BENDING ENERGY DISSIPATION DYNAMIC ANALYSIS Lateral...

... plane-section bending specific damping spiral strand plane-section bending analysis ax, with associated radiusof curvature p c using the concept of orthotropic sheet theory covering a wide rangeof practically relevant (e.g. reference 31).It was argued that plane- water depths and magnitudeosf cable mean...

... DAMAGE DECKS FATIGUE LIFE LIFE DAMPING RESURFACING WIND EFFECT LOADING LOADS HIGHWAYS SHIPS COLLISIONS PIERS VIADUCTS ANCHORAGES Strengthening and refurbishmenotf Severn Crossing Part 5: other background research and development A . R. Flint,OBE, BSc,PhD, FEng, FICE9FIStructE, FCGI...