... 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...

... in damping was noted when the crowd was present. This suggests that the crowd should be modelled as a damped sprung mass system rather than as a simple added mass which is sometimes used in analysis. A study of an undamped system with two degrees-of-freedom is then presented which leads to three...

... 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...

... CONTRACTORS DECKS SUPPORTS PYLONS CABLES STAYS BOX GIRDERS ANCHORAGES ACCESS CANTILEVER INCREMENTAL LAUNCHING ERECTION DAMPING ROPES HELICAL FILLETS FOUNDATIONS PILES PIERS ABUTMENTS FOOTINGS NORMANDIE SEINE FRANCE EUROPE Normandie Bridge Design and construction...

...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...

... DISSIPATION PARAMETRIC STUDIES UPPER BOUNDS LOWER BOUNDS SPECIFIC DAMPING WIRE ROPES CABLES FORMULATION Simple methodsfor estimating various sheathed spiral strand bending characteristics M. Raoof, PhD, DIC, and Yu Ping Huang,BSc, MSc ~ Proc. Instn Ciu. Engrs Structs & Bldgs. 1992, 94, Nov., 485...

...A R FLINT; B W SMITH; T HOWARD © Thomas Telford and ICE 1992 FLINT & NEILL STRENGTHENING REFURBISHMENT CROSSINGS RESEARCH DEVELOPMENT SEVERN BRIDGE BRIDGES SUSPENSION RIVERS HANGERS REPLACEMENT WIRE FAILURES TESTS FATIGUE DAMAGE DECKS FATIGUE LIFE LIFE DAMPING...