Temperature differential of swingspan bridges : final report.

Rushing, Hollis B.; LeBlanc, E. J.

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Temperature differential of swingspan bridges : final report.

1969-06-01
By Rushing, Hollis B. ; LeBlanc, E. J.

File Language:

English

Details

Creators:

Rushing, Hollis B. ; LeBlanc, E. J.
Corporate Creators:

Louisiana. Department of Highways. Research and Development Section
Corporate Contributors:

United States. Bureau of Public Roads
Subject/TRT Terms:
Publication/ Report Number:

Louisiana Report No. 40
Resource Type:

Tech Report
Geographical Coverage:

Louisiana
Corporate Publisher:

Louisiana. Department of Highways. Research and Development Section
Abstract:

This report describes a study performed to determine the temperature differential of the top and bottom member of one side of a swingspan bridge. Three bridges were used in the study. Bridge No. 1 was an equal-arm swingspan bridge, Bridge No. 2 was a truss swingspan bridge, and Bridge No. 3 was an unequal-arm swingspan bridge. ; Thermocouples were attached at 22 locations on each bridge to measure temperature, and a strip chart recorder was used to record the data. A one-year cycle was recorded for each bridge studied. ; The results of the study indicates that for Bridge No. 1 there was 144 occurrences of a temperature differential in excess of 15F, for Bridge No. 2 there were 37 occurrences in excess of 15F and 190 occurrences in excess of 10F, and for Bridge No. 3 there were 93 occurrences in excess of 15F. ; These results would tend to indicate that perhaps the design criteria of 10F differential for truss swingspan bridges and 15F differential for other types of swingspan bridges should be revised.
Format:

PDF
Funding:

Louisiana Project No. 66-1ST ; Louisiana HPR 1(6)
Download URL:

https://rosap.ntl.bts.gov/view/dot/22057/dot_22057_DS1.pdf
File Type:

[PDF - 3.85 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:1e07930ec991615a559e255190e2e43792fc20faaf3406deaa66fa91f1c9dcfc151523e4ee902e4b05ba18ea4d82d2b6dc44125c470af3a1584eab9c5bbd0212

File Language:

English

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