Skip to main content

Table 1 Different methods determining shear modulus of elastomeric bearing

From: Effect of bonding or unbonding on seismic behavior of bridge elastomeric bearings: lessons learned from past earthquakes in China and Japan and inspirations for future design

Method

Denotation

Shear stress_1 (kPa)

Shear stress_2 (kPa)

Shear strain_1 (%)

Shear strain_2 (%)

ASTM 4014

G1

Stress at P1

Stress at P2

0

25

AASHTO M251

G2

Stress at P1

Stress at P2

0

50

MTC (2019)

G3

300

1000

Strain at P1

Strain at P2

New method

Ge

Stress at P1

Stress at P2

0

Strain at obvious sliding

  1. P1 and P2 denote the two points in the bearing force-deformation curve chosen to determine the secant shear modulus