Out and about collecting bridge vibration data – Maramataha Suspension Bridge (141m span)

Was great to get out of the office yesterday and onto the “Timber Trail” (centre of North Island). Was a beautiful crisp clear sky morning. In these photos we are collecting bridge vibration data at the Maramataha Suspension Bridge. This is NZ’s second longest suspension bridge (141m span).

We are recording bridge vibration data on behalf of the Department of Conservation (DOC). We are currently studying the real-world natural frequencies and damping ratios for these lightweight structures using our new high precision 6-axis accelerometer/gyroscopes. Intention of the bridge vibration data is to help DOC understand/quantify any potential medium or long-term pedestrian and/or wind dynamic issues for these remote bridges.

The “commute” was a 2hour tramp each way through beautiful pristine native bush… a good day!

Check out our projects....

Manganui Gorge Suspension Bridge - Final Visualisation
Projects

Manganui Gorge Suspension Bridge

The Manganui Gorge Bridge is a 100m long suspension bridge close to the summit of Mt. Taranaki located in New Plymouth, New Zealand. It has an impressive 93m clear span and is 1.2m wide and sits in close proximity to the existing ski-field. The purpose of the suspension bridge is to connect the “Around the Mountain” scenic walk and bypass

Read More »
Toki Poutangata Steel Railway Truss Bridge - View accross railway
Projects

Toki Poutangata Pedestrian Bridge

The name chosen for the bridge “Toki Poutangata” (or Toki for short), describes a ceremonial adze of chiefly authority, and consists of a pounamu blade lashed to an elaborately carved handle. This styling has been carried through into the truss design of the bridge structure, with its distinctive tapered shape and green colour, drawing focus to the Buller River.

Read More »
Longford cable stayed bridge
Projects

Longford Cable Stayed Bridge

Longford Cable Stayed Bridge in Gore, New Zealand is a 90m spanning cable stayed pedestrian bridge. It is a 3m wide cable stayed bridge with a 32m high steel mast. The cable stayed bridge crosses the Mataura River and connects east Gore to the main centre. Cable stayed bridge design approach The crisp white circular hollow section (CHS) steel mast

Read More »
Projects

Pukeiti Rainforest Look-out Tower

The Rainforest structures featuring a “canopy walk” and “look-out tower” were designed for Edifice Contracts Ltd as part of a Design and Construct tender for Taranaki Regional Council. The structures will form part of a unique visitor experience for the existing Pukeiti Gardens. The “Canopy Walk” will be Pukeiti Gardens signature structure and includes a 170m span suspension bridge with

Read More »