Www.wagner.com Development of long span composite truss bridges Marcus O'Dempsey.
28
www.wagner.c om Development of long span composite truss bridges Marcus O'Dempsey
-
Upload
merryl-phillips -
Category
Documents
-
view
226 -
download
1
Transcript of Www.wagner.com Development of long span composite truss bridges Marcus O'Dempsey.
www.wagner.com
Development of long span composite truss bridges
Marcus O'Dempsey
www.wagner.com
Contents
• WCFT products
• WCFT solutions
• Developing composite truss bridges
www.wagner.com
WCFT Product
www.wagner.com
Section properties
Physical properties Characteristic values
Insert
End Cap
www.wagner.com
WCFT ProductProduct guide- Characteristic value of mechanical properties
and physical properties- ASTM 7290
Design guide- ASCE Pre-standard (final ver.)- Work examples
ASTM 7290 -Standard Practice for Evaluating Material Property Characteristic Values for Polymeric Composite for Civil Engineering Structural ApplicationsASCE Pre-Standard for Load and Resistance Factor Design (LRFD) of Pultruded Fiber Reinforced Polymer (FRP) Structures (Final) (2010)
www.wagner.com
Electrical crossarm
Wagners Solutions
www.wagner.com
Boardwalk
Wagners CFT Solutions
Marina
www.wagner.com
Timber Bridge Rehabilitation
Wagners Solutions
www.wagner.com
www.wagner.com
Timber Bridge Rehabilitation
www.wagner.com
Timber Bridge Rehabilitation
Pile Strengthening Bridge Widening
www.wagner.com
www.wagner.com
Composite Bridge
Wagners Solutions
www.wagner.com
Baio Bridges, Whyanbeel QLD
www.wagner.com
www.wagner.com
www.wagner.com
www.wagner.com
www.wagner.com
Engineering Development • Stage 1
– Truss composite bridges bridge– Post-cure bolt joint for 80°C design temperature
• Stage 2– Grout filled composite truss bridge for long span– Ambient cure bolt joint for 80°C design temperature
• Design criteria (AS2156, AS5100, AS1170)- Dead Load : 0.3 KPa- Live Load : 5.0 KPa (Pedestrian)- Vehicle load : 4 ton (Emergency vehicle at low speed)- Deflection Limit: L/250- Design temperature : up to 80 °C
www.wagner.com
Stage 1 • Structural specification
Span: 12 - 14 meters / Height : 2.0 meterTop-chord - 2 x 125SHS / Bottom-chord - 2 x 125 SHS / Webs - 1 x 250BRB
• Bolted jointDevelop post-cure glue system for 80°C design temperature Evaluate design strength for both ambient and 80°C design temperature
• Truss systemPerformance under static design load (Proof loading: AS/NZ 1170.0)Prove fatigue performance with 1,000,000 cycles of loading
www.wagner.com
Stage 2 • Structural specification
Span: 23 meters / Height : 2.2 metersTop-chord - 2 x Grout-filled 250 BRB / Bottom-chord - 2 x 250 BRB / Webs - 1 x 250 BRB
• Bolted jointFurther development, ambient cure glue system for eliminating post-cure procedure Evaluate design strength for the range of design temperature between ambient and 80°C
• Grout filled truss systemPerformance under static design load (Proof loading: AS/NZW 1170.0)Comparative study with and without grout-filling method
www.wagner.com
Stage 1 - 1,000,000 cycles of loading (Fatigue)
www.wagner.com
Stage 2 - Grout-filled truss (Comparative study)
31%
www.wagner.com
Stages 1 and 2 - Bolted jointWith post-cure glue (Stage 1)
With ambient-cure glue (Stage 2)
# 10 repeated test results, $ Determined in accordance with ASTM D7290
Test results – Stage 2
www.wagner.com
Stage 1 – Clewley Park FootbridgeToowoomba, QLD
www.wagner.com
www.wagner.com
Stage 2 - Mercy Footbridge replacementDalby QLD
www.wagner.com
