LS Thresholds: Analytical estimation - Cylindrical Piers

Element Properties

H(m):

Height of Pier

Num. of Elements:

Number of elements - Mesh

Fibers Perimeter:

Number of Fibers along Perimeter

Fibers Radius:

Number of Fibers along Radius

Section Properties

Geometry

D(m):

Diameter

c(m):

Cover

Materials

1. Concrete of core section (OpenSees Material 04)*

fco (kPa):

Concrete compressive strength (unconfined)

ec:

Concrete strain at maximum strength

ecu:

Concrete strain at crushing strength

Ec (kPa):

Initial Stiffness (see Opensees Mat04)

fct (kPa):

Maximum tensile strength of concrete

et:

Ultimate tensile strain of concrete

Confined concrete properties estimated according to Mander et al. (1988)Mander, J. B., Priestley, M. J. N., and Park, R. (1988). "Theoretical stress-strain model for confined concrete." Journal of Structural Engineering ASCE, 114(8), 1804-1825

2. Reinforcement steel of core section (OpenSees Material 02)

fy (kPa):

Yield strength of reinforcement steel

E₀ (kPa):

Initial Elastic Tangent (see Opensees Mat02)

Strain - Hardening ratio (ratio between post-yield tangent and initial elastic tangent) (see Opensees Mat02)

Reinforcement

Φ_L (mm):

Diameter of Longitudinal Reinforcement

Num. of Long. Reinf. Bars:

Total number of longitudinal reinforcement bars

Φ_w (mm)::

Diameter of Transverse Reinforcement

s (m):

Distance of transverse reinforcement

Analysis Properties & Loading

N (kN):

Vertical Load (G+0.3Q)

d_target (m):

Target Displacement for Pushover Analysis

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