News in Bridge Decks
This is the second of two articles on short span bridges. The first, in the July issue, described cost-cutting ideas in design. This article focuses on bridge decks: expansion joints,...

Salt Damaged Bridge Decks: Cathodic Helps
Cathodic protection of bridge decks against spalling caused by deicing salts has been demonstrated effective in decks already damaged. Construction of new decks may use other means to...

Salt Damaged Bridge Decks: Cathodic Helps
Cathodic protection of bridge decks against spalling caused by deicing salts has been demonstrated effective in decks already damaged. Construction of new decks may use other means to...

Indicial Aerodynamic Functions for Bridge Decks
With certain classical results for airfoils as a guide, lift and moment functions of the indicial type are derived for suspension bridge deck sections of either the open truss or streamlined...

Similkameen Pipeline Suspension Bridge
The mining and milling operations of the project are outlined. The concept, location, and construction methods of the 950-ft pipeline suspension bridge were predicated by the extremely...

Commentary on Orthotropic-Deck Bridge Specification
A commentary is presented to support specification provisions for the design and construction of steel orthotropic-deck bridges that were recently (1973) adopted by the American Association...

Composite Steel and Precast Concrete Slab T-Beams
This technical note describes the feasibility of using precast concrete deck slabs in bridges. The laboratory tests consisted of the static testing of two T-beams—one cast-in-place and...

Finite Element Analysis of Metal Deck Shear Diaphragms
A special adaptation of the finite element method provides a basis for the analysis of shear diaphragms composed of light gage steel panels. The panels, perimeter beams, purlins, and connectors...

Torsional Analysis of Boxgirder Suspension Bridges
Theories are presented for the static torsional analysis of the single-span box-girder suspension bridge. The box-girder deck is chosen because of its current popularity and because of...

Empirical Frequency Analysis of Bridge Deck Slabs
For the purpose of bridge design it is often convenient to know empirical relationships among various parameters such as natural frequencies, mode shapes, and impact factors under live...

Analysis of Metal Plate-Stringer-Diaphragm Bridge Decks

Lateral Stability of Wood Beam-and-Deck Systems
Modern timber structures frequently employ large wood beams bridged by 2 in. wood decking. Economy of material dictates the use of deep narrow beams whose design is limited by considerations...

Deck-Stiffened Arch Bridges of Robert Maillart
This paper describes Maillart's controversial analysis for the elegant thin concrete arches he designed from 1924 to 1934. Starting from a clear understanding of structural behavior, Maillart...

Thermal Movement of Bridge Decks
The object herein is to present the graphic solution approach for computing the in-plane (horizontal) thermal movements of curved bridge decks supported by a statically determinate system...

Lateral Stability of Beam and Deck Structure
The theoretical equations describing lateral buckling of deep beams attached to a nailed wood deck were verified by experiment. Because the effects of beam depth and span length on lateral...

FPL Timber Bridge Deck Research
The Forest Products Laboratory (FPL) in collaboration with the Forest Service Division of Engineering, has a continuing research program to improve timber bridge design and performance....

Fatigue of Orthotropic Steel Decks
Experimental investigations reported on the fatigue behavior of orthotropic steel bridge decks have been rather limited. Results of fatigue tests on steel orthotropic decks with both conventional...

Bending and Torsion in Orthotropic Deck Box Girder
Analytical and experimental studies are made on a simple span, single cell box girder bridge model with orthotropic deck having open ribs, to find and compare stresses under static loads....

Historical Development of Cable-Stayed Bridges
The development of cable-stayed bridges is traced from 1784 to the present. The first modern cable-stayed bridge, the Stromsund Bridge, was completed in 1955 in Sweden. Economic comparisons...

Experimental Investigation of Thin-Steel Hyperbolic Paraboloid Structures
Extensive tests on inverted umbrella and saddle-shaped models indicate that the design of thin-steel hypar roofs is usually governed by stiffness, rather than by stress limitations. The...

 

 

 

 

Return to search