Open AccessA Numerical Case Study on Pier Shape Coefficient of Seismic Hydrodynamic Pressure in Design Codes
Author(s) -
Yifang Qin,
ZhengruTao,
Xiaxin Tao,
HaimingLiu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/638/1/012052
Subject(s) - pier , perpendicular , geometry , mechanics , finite element method , structural engineering , geology , enhanced data rates for gsm evolution , coupling (piping) , materials science , mathematics , physics , engineering , composite material , telecommunications
To study the pier shape coefficient of seismic hydrodynamic pressure, three waterpier coupling finite element models of piers with circular, rectangular and elliptical sections are built. The results numerically calculated with the same input ground motion show that the horizontally distributions of the hydrodynamic pressures from the vertical central lines to the edges of the three types of piers at a given depth are almost the same, the difference among the pressures on the three piers is mainly from the decreasing rate from the central line to the edge. The pressures decrease with the input direction from perpendicular to parallel. The result values of shape coefficients are close to the provisions in Japanese code, and those for circular and elliptical piers are slightly less than that stipulated in the code; and the coefficient values for rectangular pier are less than that in Euro code 8 and those for elliptical pier are in the range of the code.