Probability analysis of seismic pounding of adjacent buildings

Abstract

SUMMARYThe need to investigate the level of seismic pounding risk of buildings is apparent in future building code calibrations. In order to provide further insight into the pounding risk of adjacent buildings, this study develops a numerical simulation approach to estimate the seismic pounding risk of adjacent buildings separated by a minimum code-speciÿed separation distance during a certain period of time. It has been demonstrated that the period ratio of adjacent buildings is an important parameter that a ects the pounding risk of adjacent buildings. However, there is no speciÿc consideration for the period ratio in the related seismic pounding provisions of the 1997 Uniform Building Code. Results also reveal that, for two adjacent buildings, the probability distribution of required distance to avoid seismic pounding ÿts very well with the type I extreme value distribution.

Quantiles of critical separation distance for nonstationary seismic excitations

“…The evaluation of this critical separation distance has been the subject of several studies [1][2][3][4]. Numerical analysis results given in [2,4] suggested that the risk of pounding for buildings satisfying the specified minimum separation distance in the Uniform Building Code [5] is not always consistent and varies with the vibration periods of adjacent buildings.…”

Evaluation of parameters affecting earthquake damage by decision tree techniques

“…The soft site conditions where these buildings were located increased the damage. The study of Lin and Weng (2001) reveals that the pounding risk of adjacent buildings is affected by the natural periods of individual buildings and the period ratio of adjacent buildings and the pounding risk of adjacent buildings increases as the periods of buildings approach the site periods.…”

A study on seismic pounding probability of buildings in Taipei metropolitan area

“…Recently, Lin and Weng (2001b) investigated the probability distribution of the required separation distance of buildings with steel momentresisting frame (SMRF), which exhibit elasto-plastic behavior in the form of a hysteretic restoring forcedisplacement characteristic, by the KolmogorovSmirnov test that considers the quality of fit between a hypothesized distribution function and an empirical distribution function, based on data obtained by the Monte Carlo simulation method. The results indicated that the separation data fit almost perfectly with the type I extreme value distribution.…”