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Title: FIELD MONITORING OF INTEGRAL ABUTMENT BRIDGE IN MASSACHUSETTS
Accession Number: 00984617
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Integral abutment bridges are increasingly being used to eliminate undesirable bridge joint effects on the long-term performance of bridges. Although many states use this type of construction, common design guidelines are lacking, and nonuniform limitations on integral abutment design are imposed by different agencies. Data from the field monitoring of an existing three-span integral abutment bridge in central Massachusetts are presented. Resulting data are valuable in evaluating existing design provisions and understanding structural behavior. The results presented for a 16-month period of monitoring include recorded ambient temperature from -4 deg F to 99 deg F (-20 deg C to 37 deg C). Longitudinal movements induced by thermal expansion and contraction of the bridge are consistent with temperature changes. However, earth pressure cell data indicate that the maximum pressures generated behind the abutment walls occur in early spring. Lower pressures measured in the summer indicate some dissipation of soil pressures with time. Longitudinal displacement measurements taken during 2-week periods included variations that approached the magnitude of seasonal changes. Although fairly significant abutment movement has been recorded to date, there is no clear indication that the abutment piles have yielded. Field monitoring will continue, and the results from this study will be used to calibrate a detailed finite element model of the bridge to validate current integral abutment bridge design practices.
Supplemental Notes: This paper appears in Transportation Research Record No. 1892, Design of Structures 2004.
Monograph Title: Monograph Accession #: 00984600
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Civjan, S ABrena, S FButler, D ACrovo, D SPagination: p. 160-169
Publication Date: 2004
Serial: ISBN: 0309094879
Features: Figures
(8)
; Photos
(1)
; References
(3)
TRT Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls
Files: TRIS, TRB, ATRI
Created Date: Jan 26 2005 12:00AM
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