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Synthesis of accelerograms compatible with the Chinese GB 50011-2001 design spectrum via harmonic wavelets: artificial and historic records
A versatile approach is employed to generate artificial accelerograms which satisfy the compatibility criteria prescribed by the Chinese aseismic code provisions GB 50011-2001. In particular, a frequency dependent peak factor derived by means of appropriate Monte Carlo analyses is introduced to relate the GB 50011-2001 design spectrum to a parametrically defined evolutionary power spectrum (EPS). Special attention is given to the definition of the frequency content of the EPS in order to accommodate the mathematical form of the aforementioned design spectrum. Further, a one-to-one relationship is established between the parameter controlling the time-varying intensity of the EPS and the effective strong ground motion duration. Subsequently, an efficient auto-regressive moving-average (ARMA) filtering technique is utilized to generate ensembles of non-stationary artificial accelerograms whose average response spectrum is in a close agreement with the considered design spectrum. Furthermore, a harmonic wavelet based iterative scheme is adopted to modify these artificial signals so that a close matching of the signals’ response spectra with the GB 50011-2001 design spectrum is achieved on an individual basis. This is also done for field recorded accelerograms pertaining to the May, 2008 Wenchuan seismic event. In the process, zero-phase high-pass filtering is performed to accomplish proper baseline correction of the acquired spectrum compatible artificial and field accelerograms. Numerical results are given in a tabulated format to expedite their use in practice
Parametrically excited vibrations of marine riser under random wave forces and earthquake
Quantitative Analysis of Site-city Interaction Effects on Regional Seismic Damage of Buildings
Shaking table test and numerical analysis of an asymmetrical twin‐tower super high‐rise building connected with long‐span steel truss
Seismic performance evaluation of tall, multitower reinforced concrete buildings with large bottom podiums
Experimental Study on Failure Mechanism of RC Walls with Different Boundary Elements under Vertical and Lateral Loads
A Critical Review of Methods for Determining the Damage States for the In-plane Fragility of Masonry Infill Walls
On the FE modelling of RC beams with a fibre-reinforced polymer (FRP)-strengthened web opening
Considering Shear Behavior of Beam-Column Connections to Assess the Seismic Performance of RC Frames Subjected to Freeze-Thaw Cycles
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