00371169

Component

http://onlinepubs.trb.org...s/trr/1982/871/871-001.pdf

https://scholar.google.co....+Lo&publication_year=1982

Precast or cast-in-place segmental cantilevered construction forms a relatively new generation in U.S. bridge construction. One of the largest-scale projects of this kind is the I-205 Columbia River Bridge in Portland, Oregon, which was started in 1979 and is due for completion in 1982. The project consists of two parallel bridges, each 75 ft wide. Its final contract for the main superstructure (length of 5770 ft) was awarded to a joint venture of S. J. Groves and Guy F. Atkinson. Responding to the Oregon Department of Transportation's policy of value engineering, the longer 480-, 600-, and 480-ft spans were changed from precast to in-place construction by using traveling wagons; the shorter 240-, 300-, and 360-ft spans remained precast. This unique setup afforded a special opportunity for comparing the two construction methods and for coordinating design and geometric control with construction. Included in this paper is an outline of geometric control for both cast-in-place and match-cast segments; methods for predicting deflections, which consider shrinkage and creep; and a brief description of computer programs for cantilevered construction. Also included are a description of the coordination between designer and field personnel in order to achieve quality and accuracy in construction, a comparison of actual constructed elevations with predicted elevations, and, finally, a discussion regarding implications for future segmental construction. (Authors)

Publication of this paper sponsored by Committee on Concrete Bridges and Committee on Foundations of Bridges and Other Structures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01411670

pp 1-8

1982

Transportation Research Record

61st Annual Meeting of the Transportation Research Board

0309034000

Print

Figures (12) ; Photos (7) ; References (7)

Box girders; Bridge design; Bridges; Cast in place structures; Computer programs; Construction; Creep; Geometric design; Precast concrete; Segmental construction; Shrinkage; Structural design; Value engineering

Columbia River Bridge

Portland (Oregon)

Bridges and other structures; Construction; Highways; I53: Construction of Bridges and Retaining Walls

TRIS, TRB

Mar 31 1983 12:00AM

• BEBO CONCRETE ARCH STRUCTURAL SYSTEM
• BRIDGE STRUCTURE CONSTRUCTION SYSTEM THAT USES TREATED LUMBER
• CURRENT PRACTICES IN SYSTEMS CONSTRUCTION OF CONCRETE BRIDGE STRUCTURES
• DESIGN OF A SKEW, REINFORCED CONCRETE BOX-GIRDER BRIDGE MODEL
• ELEVEN-YEAR PERFORMANCE OF TWO PRECAST, PRESTRESSED CONCRETE BRIDGE DECKS
• EVALUATION AND VERIFICATION OF TIME-DEPENDENT DEFORMATIONS IN POSTTENSIONED BOX-GIRDER BRIDGES
• FATIGUE RELIABILITY ANALYSIS OF HIGHWAY BRIDGES
• FULL-SPAN FORM PANELS FOR HIGHWAY BRIDGES
• LIVE LOAD DISTRIBUTION IN CONCRETE BOX-GIRDER BRIDGES
• LOAD CAPACITY OF CONCRETE BRIDGE DECKS (ABRIDGMENT)
• PRECAST CONCRETE DECK MODULES FOR BRIDGE DECK RECONSTRUCTION
• RESPONSE OF 45 DEGREES SKEW, REINFORCED CONCRETE BOX-GIRDER BRIDGE MODEL TO AASHTO TRUCKS AND OVERLOAD CONSTRUCTION VEHICLES
• SEGMENTAL CONSTRUCTION FOR CONCRETE AND STEEL BRIDGES THAT INCORPORATE POSTTENSIONING
• SYSTEM CONSTRUCTION OF MEDIUM-SPAN BRIDGES IN PRESTRESSED CONCRETE