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04994aam a2200625Ic 4500 001 F4B6BF2EB7CA11EC864CB83724ECA4DB 003 SILO 005 20220409010100 008 150929s2015 iauado fsbt s000 0 eng d 035 $a (OCoLC)922540684 040 $a UIG $b eng $e rda $c UIG $d UIG $d SILO 088 $a InTrans Project 13-470 088 $a IHRB Project TR-661 100 1 $a Phares, Brent M., $e author. $u Iowa State University. 245 10 $a Evaluation of the Need for Longitudinal Median Joints in Bridge Decks on Dual Structures $c Brent M. Phares, Lowell Greimann, and Zhengyu Liu 264 1 $a Ames, Iowa $b Institute for Transportation, Iowa State University $c 2015 300 $a xii, 83 pages (99 pages in PD file) $b illustrations, charts, photographs (chiefly color) 500 $a September 2015 -- Technical Report Documentation Page 504 $a Includes bibliographic references (page 83) 513 $a Final Report 520 3 $a The primary objective of this project was to determine the effect of bridge width on deck cracking in bridges. Other parameters, such as bridge skew, girder spacing and type, abutment type, pier type, and number of bridge spans, were also studied. To achieve the above objectives, one bridge was selected for live-load and long-term testing. The data obtained from both field tests were used to calibrate a three-dimensional (3D) finite element model (FEM). Three different types of loading -- llive loading, thermal loading, and shrinkage loading -- were applied. The predicted crack pattern from the FEM was compared to the crack pattern from bridge inspection results. A parametric study was conducted using the calibrated FEM. The general conclusions/recommendations are as follows: -- Longitudinal and diagonal cracking in the deck near the abutment on an integral abutment bridge is due to the temperature differences between the abutment and the deck. Although not likely to induce cracking, shrinkage of the deck concrete may further exacerbate cracks developed from thermal effects. -- Based upon a limited review of bridges in the Iowa DOT inventory, it appears that, regardless of bridge width, longitudinal and diagonal cracks are prevalent in integral abutment bridges but not in bridges with stub abutments. -- The parametric study results show that bridge width and skew have minimal effect on the strain in the deck bridge resulting from restrained thermal expansion. -- Pier type, girder type, girder spacing, and number of spans also appear to have no influence on the level of restrained thermal expansion strain in the deck near the abutment. 500 $a Catalogers note: This record is for the full-length report. A 2-page tech transfer summary is also available, at a link in this record. The summary is not cataloged individually. 516 $a Text file in PDF format. 536 $a Performed by Iowa State University, Institute for Transportation $c InTrans Project 13-470 536 $a Sponsored by the Iowa Department of Transportation, Iowa Highway Research Board $c IHRB Project TR-661 538 $a System requirements: Adobe Acrobat, Adobe Acrobat Reader, or other PDF reading software. 538 $a Mode of access: World Wide Web $u http://publications.iowa.gov/id/eprint/20466 650 0 $a Bridges $x Floors. 650 07 $a Bridge decks $2 trt 650 07 $a Bridge design $2 trt 650 07 $a Field tests $2 trt 650 07 $a Finite element method $2 trt 650 07 $a Highway bridges $2 trt 650 07 $a Jointless bridges $2 trt 650 07 $a Literature reviews $2 trt 650 07 $a Longitudinal cracking $2 trt 650 07 $a Longitudinal joints $2 trt 650 07 $a Width $2 trt 653 $a continuous deck 653 $a deck cracks 653 $a diagonal cracks 653 $a thermal loading 700 1 $a Greimann, Lowell, $e author. $u Iowa State University. 700 1 $a Liu, Zhengyu, $e author. $u Iowa State University. 710 2 $a Iowa State University. $b Institute for Transportation, $e performing body. 710 1 $a Iowa. $b Department of Transportation, $e sponsoring body. 710 1 $a Iowa. $b Highway Research Board, $e sponsoring body. 856 40 $a Iowa Publications Online $3 Full text access from Iowa Publications Online $z Full report $u http://publications.iowa.gov/id/eprint/20466 856 42 $a Iowa Publications Online $3 Full text access from Iowa Publications Online $z Tech transfer summary $u http://publications.iowa.gov/id/eprint/20466 856 40 $a Digital Repository @ Iowa State University $3 Full text access from Digital Repository @ Iowa State University $z Full report $u http://lib.dr.iastate.edu/intrans_reports/133 856 42 $a Digital Repository @ Iowa State University $3 Full text access from Digital Repository @ Iowa State University $z Tech transfer summary $u http://lib.dr.iastate.edu/intrans_techtransfer/83 941 $a 1 952 $l IAOX771 $d 20221029021554.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=F4B6BF2EB7CA11EC864CB83724ECA4DB 994 $a C0 $b UIGInitiate Another SILO Locator Search