Level 2 & Level 3 Inspection, Structural Assessment, Load Bearing Capacity, Repair Strategy And Associated Cost Analysis Of Plunkett's Bridge
Project Scope
Level 3 Inspection, Structural Analysis, and Load Capacity Assessment (Rating Factor) of Plunkett’s Bridge.
Plunkett’s Bridge Rd. is a concrete bridge consisting of three simply supported spans with the total length of 36.970 m and total width of 10.010 m (8.550 m is the carriage path width) built in 1961. Due to lack of bridge drawings, all geometry of all bridge components were measured on-site to provide the bridge model.
The structural components of the bridge are listed as follows:
- Precast reinforced concrete deck
- Seven precast concrete girders in each span
- Two cast-in-situ reinforced concrete Abutments (A1 & A2)
- Two cast-In-situ reinforced concrete pier walls (P1 & P2)
The following tasks were carried out:
- Detailed Inspection in Accordance with VicRoads “Road Structure Inspection Manual – 2018”
- Measurement of all Structural Components (Site-Specific Measurements) as there was not any drawing available
- Measurement of all Material Properties utilising NDT Techniques
- Modelling and Structural Analysis of the Bridge Utilising SAP 2000 Computer Software in Accordance with AS 5100.7:2007 Bridge Assessment
- Calculating Rating Factor of the Bridge
The following NDT Techniques were carried out:
- Compressive Strength (SONREB Method (combining method) utilising Ultrasonic Pulse Velocity and Digital Rebound Hammer)
Project Ref. No. : TC19-P128
Client : Indigo Shire Council
Completion Date : 27–June–2019
