QuakeCoRE Research Accomplishments

Annual Meeting 2018

Brendon Bradley(on behalf of the QuakeCoRE community)

Observed

Simulated

North-South East-West Vertical

Wel

ling

ton

Bas

inW

ellin

gto

n R

ock

Hauraki Rift Basin model

NZ Velocity ModelKerepēhi Ft(source)

20 km

3 km

(3.0,1.2)

(1.5,0.4)

( , )

km/s

Ground Motion Simulations of Upper North Island Earthquakes

Wairoa North Fault (M 6.7)

Auckland

Te Poi

offshore

onshore

Kerepehi Fault segments (M 6.6 – 7.4)

PGA, PGV, Ds575 for selected locations and scenarios.

Sth. Auckland exposed to Wairoa N Ft (PGA 0.25g).

Thames and Matamata exposed to Kerepehi Ft events (PGA 0.25-0.75g).

Simulations performed on Kupe with help from

UC (Brendon, Sung, Jonney and others).

S2

S3

S1

Switch

Transformer

Bus

Load

110/20kV 110/20kV

0

1

2

3

4

5 11

10

9

8

7

6

12

13

'0.1 10.7p

c g

h PKa f A

θ⎡ ⎤

= −⎢ ⎥⎢ ⎥⎣ ⎦

P

c

α

θb

α-θb

θb *cr s PLεΔ =

0.8cr cr

p cr d d Dθ δ Δ Δ

= = =′−

Auckland 4-storey

Christchurch/Wellington 4-storey

Sliding hinge joint (MacRae et al. 2010)

Reduced beam sections (Huang et al. 2010)

Wellington 4-storey building loss comparisons

⇒

QuakeCoRE Research Accomplishments

Annual Meeting 2018

Brendon Bradley(on behalf of the QuakeCoRE community)