P25 scoring method for the collapse vulnerability assessment of R/C buildings

Abstract

It is historically a fact that Turkey experiences frequent earthquakes, on the order of one damaging earthquake of magnitude 6 to 7 approximately every two years, causing extensive losses to economy, life and limb. Every strong earthquake leaves behind poverty and tens of thousands of homeless people. In order to mitigate especially the losses of life due to earthquakes, a rapid scoring technique called the P25 -Preliminary Assessment Method, is proposed herein. The purpose of the method is to determine, for a reinforced concrete framed building, whether there is any vulnerability to collapse during a strong earthquake. By identifying those buildings, which are most likely susceptible to collapse inside a particular building stock, and consequently strengthening or demolishing them, practically no loss of life will occur. In this presentation, details of P25 -Preliminary Assessment Method are discussed and the high degree of prediction reliability of the method is demonstrated on 323 case study buildings, which experienced wide ranges of damage during past earthquakes.

Klein-Gordon equation particles in exponential-type molecule potentials and their thermodynamic properties in D dimensions

“…The Nikiforov-Uvarovmethod [1,39] was proposed to solve second-order differential equation of the form…”

“…The DFPEP model which incorporates these special well-known potentials can be used in the study of nuclear structure in the spherical shell model to obtain the energy splitting and the magic numbers [32]. Consequently, one can say authoritatively that the achievement of quantum mechanics in the description of the physics of atomic and sub-atomic particles can not be overemphasized [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48]. The DFPEP is defined as [31]    …”

“…Thus, the energy eigenvalues can be obtain for the DFPEP using the NU method[1,39] (see appendix Eq. ( A.4) ) as…”

19 May 2011 Kütahya – Simav earthquake and evaluation of existing sample RC buildings according to the TEC-2007 criteria

“…However, when the Marmara and Düzce earthquakes of 1999 are examined, even though there were serious fatalities and material losses, only 6 % of buildings within the total structure stock of that time completely collapsed or sustained serious damage (Tezcan et al, 2011). In this situation, there are significant differences between the criteria of regulation and the results of buildings that have experienced the test of a real earthquake.…”

MVP interaction based seismic vulnerability assessment of RC buildings

“…The second approach is called the preliminary seismic vulnerability assessment or Level 2 assessment. It requires some basic calculations considering the load carrying characteristics of the building, soil condition, concrete strength, visual quality, and irregularities [8,[12][13][14][15][16][17][18]. Moreover, although all procedures in this group can be used to evaluate vulnerable buildings in a building stock, it can also be utilized to evaluate seismic performance of a single building with simple equations.…”