00399174

Component

http://onlinepubs.trb.org...s/trr/1984/982/982-007.pdf

https://scholar.google.co...West&publication_year=1984

The temperature effects on an experimental, prestressed concrete, segmental, box-girder bridge were evaluated. Field measurements, including vertical deflections and thermocouple readings for temperature, were collected over a 1-year period under various weather conditions. Critical ambient temperature conditions were gleaned from field observations. With the field observations (surface temperatures) as input, three-, two-, and one-dimensional heat-flow analyses were conducted. The three-dimensional heatflow analysis was a statistical comparison of temperature readings at various longitudinal locations in the experimental bridge. The two-dimensional analysis involved the collection of hourly temperature readings from 24 thermocouples at the midspan of the test bridge for 18 diurnal cycles within a 1-year period. In addition an alternating-direction implicit finite difference analysis was performed, and the results compared well with the field observations. Finally, a one-dimensional approach was formulated with the application of an initial-value method. This was found to be in agreement with the alternating-direction implicit finite difference model and the collected field data.

Publication of this paper sponsored by Committee on Concrete Bridges. 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

01419860

pp 42-50

1984

Transportation Research Record

0309037646

Print

Figures (14) ; Photos (1) ; References (7)

Box girders; Concrete bridges; Deflection; Girder bridges; Heat flow; Mathematical models; Prestressed concrete; Temperature; Thermocouples; Weather

Models

Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls

TRIS, TRB

Jan 31 1986 12:00AM

• EARTHQUAKE PRECURSERS AND POTENTIAL DAMAGE IN THE UNITED STATES (ABRIDGMENT)
• FOUNDATION DESIGN: WEST SEATTLE BRIDGE
• HORIZONTALLY CURVED I-GIRDER BRIDGE ANALYSIS: V-LOAD METHOD
• OVERVIEW OF THE PENNSYLVANIA STANDARD PLANS FOR LOW-COST BRIDGES
• PERFORMANCE OF SLIDING BRIDGE BEARINGS
• PRESTRESSED CONCRETE HIGHWAY BRIDGES IN THE FEDERAL REPUBLIC OF GERMANY--CONSTRUCTION METHODS AND EXPERIENCES
• PRESTRESSED STEEL BEAM-CONCRETE SLAB COMPOSITE BRIDGE UNITS FOR COUNTY ROAD USE
• SEASONAL AND DIURNAL BEHAVIOR OF CONCRETE BOX-GIRDER BRIDGES
• TENSION ARCH STRUCTURE