Earthquake Engineering-Engineering Seismology

MULTIPLIERS AND THEIR APPLICATIONS IN EARTHQUAKE ENGINEERING

In this paper we shall study the multipliers on Banach algebras and We prove some results concerning Arens regularity and amenability of the Banach algebra M(A) of all multipliers on a given Banach algebra A. We also show that, under special hypotheses, each Jordan multiplier on a Banach algebra without order is a multiplier. Finally, we present some applications of m...

Instrumentation in Earthquake Seismology

Soil Dynamics and Earthquake Engineering

Reduced dimensionality representation of strong ground motion records as a superposition of a relatively small number of pulses is studied. Such representation is obtained by the expansion of velocity in orthogonal wavelet series using the Fast Wavelet Transform, and approximation by only the largest energy terms in the series. The Coiflet 5 wavelet family is used, which is orthogonal, smooth a...

EARTHQUAKE ENGINEERING PRACTICE Creating Fragility Functions for Performance-Based Earthquake Engineering

The Applied Technology Council is adapting PEER’s performance-based earthquake engineering methodology to professional practice. The methodology’s damage-analysis stage uses fragility functions to calculate the probability of damage to facility components given the force, deformation, or other engineering demand parameter (EDP) to which each is subjected. This paper introduces a set of procedur...

The 14th World Conference on Earthquake Engineering

Semi-active control devices have been shown to be more energy efficient than active devices and more effective in reducing seismic structural vibration than passive devices. A new type of semi-active control device, the piezoelectric friction damper has been made in this paper. Piezoelectric actuators used in the dampers can quickly and accurately respond to a voltage signal. They are also effe...