Development of limit states design (LRFE) methods for stress laminated timber “cellular” bridge decks
ثبت نشده
چکیده
The focus of this research is the stress laminated timber cellular deck. The testing program has involved application of loads that modelled both the design serviceability and design ultimate conditions, and identified slip and load redistribution mechanisms, which occur at the limit state of linear composite behaviour. This paper presents a summary of the results of this testing and discusses the structural responses that form the basis for design of cellular stress laminated timber bridge decks.
منابع مشابه
An Overview of the Development of Stress Laminated Cellular Timber Bridge Decks for Short to Medium Span Applications in Australia
Stress laminated timber bridge deck technology has been established in Australia since 1991, resulting in the construction of over 40 prototype bridges. This paper presents an overview of the R&D undertaken to implement this technology, involving laboratory testing and field application of plate decks spanning up to 9m and high capacity cellular decks spanning 12m, with the potential to span up...
متن کاملEvaluation of a Timber Bridge for the Secondary Road System Using FRP Reinforced Glued-Laminated Girders
One of the goals that the Innovative Bridge Research and Construction (IRBC) program, sponsored by the Federal Highway Administration (FHWA), wishes to achieve through sponsored research projects is the concept of an economical, durable, short-span bridge that reduces construction time. Delaware County, Iowa took a step in that direction through the construction of a 64 ft. long bridge comprise...
متن کاملAssessing the Performance of Corroding RC Bridge Decks: A Critical Review of Corrosion Propagation Models
Corrosion of steel reinforcement is one of the most prevalent causes of reinforced concrete (RC) structures deterioration in chloride-contaminated environments. As a result, evaluating the impact of any possible corrosion-induced damages to reinforced concrete bridges strongly affects management decisions: such as inspection, maintenance and repair actions. The corrosion propagation phase is a ...
متن کاملPortable Glulam Timber Bridge Design for Low-Volume Forest Roads
Improved stream crossings are needed to reduce construction and maintenance costs and reduce the environmental impacts from low-volume forest roads and skid trails. New designs of timber bridges are cost-effective alternatives for portable stream crossing structures. This paper discusses design criteria for portable timber bridges and presents one design for a portable, longitudinal glued-lamin...
متن کاملBeam & Shell Models for Composite Straight or Curved Bridge Decks with Intermediate Diaphragms & Assessment of Design Specifications
In this research effort, the generalized warping and distortional problem of straight or horizontally curved composite beams of arbitrary cross section, loading and boundary conditions is presented. An inclined plane of curvature is considered. Additionally, the stiffness of diaphragmatic plates has been introduced in the formulation in order to compare with the case where rigid diaphragms are ...
متن کامل