A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behavior of Stress-Laminated Parallel-Chord Timber Bridge Decks: Experimental and Analytical Studies
The use of stress lamination for constructing timber bridges may provide a solution to the urgent need for rehabilitating and replacing U.S. highway bridges. This report describes the development, construction, testing, and analysis of a new type of stress-laminated timber bridge: the parallel-chord bridge. A full-scale laboratory test was conducted on a stress-laminated parallel-chord bridge made with Vierendeel trusses. A similar set of shorter trusses was built for a prototype bridge on the Hiawatha National Forest in Michigan. Test results showed that both of these bridges have greater stiffness and can span longer distances than stress-laminated solid-sawn timber bridges. The stress-laminated parallel-chord bridge system effectively transfers applied loads to a wide portion of the deck trusses. Anchorage configurations have little effect on load resisting behavior as long as the anchorages transfer pre-stressing force into both chords and webs. Good correlation was found between analytical and experimental results. The stress-laminated parallel-chord bridge is easy to build, but the cost of the superstructure may be limiting.
Behavior of Stress-Laminated Parallel-Chord Timber Bridge Decks: Experimental and Analytical Studies
The use of stress lamination for constructing timber bridges may provide a solution to the urgent need for rehabilitating and replacing U.S. highway bridges. This report describes the development, construction, testing, and analysis of a new type of stress-laminated timber bridge: the parallel-chord bridge. A full-scale laboratory test was conducted on a stress-laminated parallel-chord bridge made with Vierendeel trusses. A similar set of shorter trusses was built for a prototype bridge on the Hiawatha National Forest in Michigan. Test results showed that both of these bridges have greater stiffness and can span longer distances than stress-laminated solid-sawn timber bridges. The stress-laminated parallel-chord bridge system effectively transfers applied loads to a wide portion of the deck trusses. Anchorage configurations have little effect on load resisting behavior as long as the anchorages transfer pre-stressing force into both chords and webs. Good correlation was found between analytical and experimental results. The stress-laminated parallel-chord bridge is easy to build, but the cost of the superstructure may be limiting.
Behavior of Stress-Laminated Parallel-Chord Timber Bridge Decks: Experimental and Analytical Studies
A. G. Dimakis (author) / M. G. Oliva (author) / M. A. Ritter (author)
1992
24 pages
Report
No indication
English
Construction Equipment, Materials, & Supplies , Highway Engineering , Wood & Paper Products , Bridge decks , Stress analysis , Structural timber , Laminates , Composite structures , Finite element method , Loads(Forces) , Deflection , Displacement , Structural members , Timber construction , Construction materials , Structural analysis , Trusses
Performance of stress-laminated-timber bridge decks
| TIBKAT | 2013
System Stiffness for Stress-Laminated Timber Bridge Decks
| British Library Conference Proceedings | 1996
Avoiding Restressings in Stress Laminated Timber Bridge Decks
| British Library Conference Proceedings | 1994
Stress Laminated Timber Decks in Railway Bridge Application
| British Library Conference Proceedings | 1996