Skip header and navigation

2 records – page 1 of 1.

Modular Timber Concrete Composite System for Short Span Highway Bridges

https://research.thinkwood.com/en/permalink/catalogue2297
Year of Publication
2019
Topic
Design and Systems
Connections
Material
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Author
Liang, Yi
Publisher
University of Toronto
Year of Publication
2019
Country of Publication
Canada
Format
Thesis
Material
Timber-Concrete Composite
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans
Topic
Design and Systems
Connections
Keywords
Modular Construction
Ultra-High Performance Fibre Reinforced Concrete (UHPFRC)
Self-Tapping Screws
Canadian Highway Bridge Design Code
Language
English
Research Status
Complete
Summary
An innovative concept for a modular timber concrete composite system for short span highway bridges has been designed and key components experimentally validated. The proposed system consists of a Ultra-High Performance Fibre Reinforced Concrete(UHPFRC) deck and glue-laminated timer (glulam) girders linked to act compositely together by reinforcing steel bar shear connectors. This composite system has light, stable modules that can be rapidly constructed on site with less special equipment. Simple design checks indicate that the concept satisfies all serviceability limit state(SLS) and ultimate limit state(ULS) requirements of the Canadian Highway Bridge Design Code. Pull-out tests characterized the embedment lengths of 20M steel bar connectors to be 10 bar-diameters in UHPFRC. Push-off tests determined the embedment lengths of the same bars to be 30 bar-diameters glued into the timber girders. The slip modulus of the connectors is determined to be 67 kN/mm. The stiffness of the crosswise self-tapping screw connectors were tested and found to be structurally insignificant in this application. The excellent tensile and cracking properties of the reinforced UHPFRC deck was experimentally verified. A small amount of reinforcement would further improve the ductility of the UPHFRC deck system.
Online Access
Free
Resource Link
Less detail

Development of a Slab-on-Girder Wood-Concrete Composite Highway Bridge

https://research.thinkwood.com/en/permalink/catalogue1421
Year of Publication
2012
Topic
Design and Systems
Material
Glulam (Glue-Laminated Timber)
Application
Bridges and Spans