Probability Assessment of Analysis of High-Rise Buildings Seismic Resistance

Abstract

This paper presents the probabilistic assessment to analyze the resistance of the unsymmetrical effects (accidental torsional effects, soil-structure interaction, and seismic action) to symmetrical high rise buildings. The Eurocode requires that the seismic resistance of structures must be checked to the accidental torsion effects. In order to cover uncertainties in the location of masses and in the spatial variation of the seismic motion, the calculated centre of mass at each floor shall be considered displaced from its nominal location in each direction by an accidental eccentricity due to the requirements of ENV 1998. Recent advances and the general accessibility of information technologies and computing techniques give rise to assumptions concerning the wider use of the probabilistic assessment of the reliability of structures through the use of simulation methods. The possibilities of the utilization the RSM method to analyze the extensive and robust tasks in FEM is presented in the case of the buildings with central core and columns system. The deterministic and probability analysis of the seismic resistance of the structure was calculated in the ANSYS program.

Deterministic and Probabilistic Analysis of the Random Torsional Effects of the Seismic Resistance of Symmetrical Tall Buildings

“…In order to cover uncertainties in the location of masses and in the spatial variation of the seismic motion, the calculated center of mass at each floor i shall be considered displaced from its nominal location in each direction by an accidental eccentricity due to the requirements of EN 1998-1 [9]. The accidental torsion effect is defined as follow e ai = ±0.05 · L i (5) where e ai is an accidental eccentricity of storey mass i from its nominal location, applied in the same direction at all floors, L i is a floor-dimension perpendicular to the direction of the seismic action. The influence of accidental torsion effect will be considered using the accidental eccentricity of storey mass for deterministic analysis.…”

“…Recent advances and the general accessibility of information technologies and computing techniques give rise to assumptions concerning the wider use of the probabilistic assessment of the reliability of structures through the use of simulation methods [1][2][3][4][5]. Much attention should be paid to using the probabilistic approach in an analysis of the reliability of structures [6,7].…”

Liquid Storage Cylindrical Tank - Earthquake Analysis

“…The total overturning moment can be obtained by combining the overturning moment in impulsive and convective mode to be used for checking the tank stability at the bottom of base slab/plate, and is given by . A ground supported concrete cylindrical tank has capacity 1885 m 3 . The tank slenderness parameter given is by relation J = H/L.…”

“…Liquid storage containers are strategically very important structures, since they have vital uses in industries, nuclear power plants and are connected to public life. Seismic safely of liquid tanks is of considerable importance [1][2][3][4][5][6][7]. Water storage tanks should remain functional in the post earthquake period to ensure potable water supply to earthquake-affected regions and to cater the need for fighting demand.…”

Seismic response of waste storage tanks

“…water for drinking and fire fighting, petroleum, oil, liquefied natural gas, chemical fluids, chemical and radioactive wastes. Seismic safely of liquid tanks is of considerable importance [1][2][3][4][5][6][7][8]. Water storage tanks should remain functional in the post earthquake period to ensure potable water supply to earthquake-affected regions and to cater the need for fighting demand.…”