Buckling behavior of steel girder in integral abutment bridges under thermal loadings in summer season during deck replacement

2016 ◽  
Vol 16 (4) ◽  
pp. 1071-1082 ◽  
Author(s):  
Jaeha Lee ◽  
Yoseok Jeong ◽  
WooSeok Kim
Keyword(s):  
Summer Season ◽  
Integral Abutment ◽  
Steel Girder ◽  
Integral Abutment Bridges ◽  
Abutment Bridges ◽  
Buckling Behavior

scholarly journals Influence of Construction Joint and Bridge Geometry on Integral Abutment Bridges

2021 ◽  
Vol 11 (11) ◽  
pp. 5031
Author(s):  
Wooseok Kim ◽  
Jeffrey A. Laman ◽  
Farzin Zareian ◽  
Geunhyung Min ◽  
Do Hyung Lee
Keyword(s):  
Prestressed Concrete ◽  
Extreme Temperature ◽  
Bending Moment ◽  
Design Guidelines ◽  
Time Dependent ◽  
Steel Bridge ◽  
Integral Abutment ◽  
Integral Abutment Bridges ◽  
Construction Joint ◽  
Abutment Bridges

Although integral abutment bridges (IABs) have become a preferred construction choice for short- to medium-length bridges, they still have unclear bridge design guidelines. As IABs are supported by nonlinear boundaries, bridge geometric parameters strongly affect IAB behavior and complicate predicting the bridge response for design and assessment purposes. This study demonstrates the effect of four dominant parameters: (1) girder material, (2) bridge length, (3) backfill height, and (4) construction joint below girder seats on the response of IABs to the rise and fall of AASHTO extreme temperature with time-dependent effects in concrete materials. The effect of factors influencing bridge response, such as (1) bridge construction timeline, (2) concrete thermal expansion coefficient, (3) backfill stiffness, and (4) pile-soil stiffness, are assumed to be constant. To compare girder material and bridge geometry influence, the study evaluates four critical superstructure and substructure response parameters: (1) girder axial force, (2) girder bending moment, (3) pile moment, and (4) pile head displacement. All IAB bridge response values were strongly related to the four considered parameters, while they were not always linearly proportional. Prestressed concrete (PSC) bridge response did not differ significantly from the steel bridge response. Forces and moments in the superstructure and the substructure induced by thermal movements and time-dependent loads were not negligible and should be considered in the design process.

Behaviour of H-piles supporting an integral abutment bridge

2014 ◽  
Vol 51 (7) ◽  
pp. 713-734 ◽  
Author(s):  
Shelley A. Huntley ◽  
Arun J. Valsangkar
Keyword(s):  
Axial Load ◽  
Integral Abutment ◽  
Integral Abutment Bridges ◽  
Expansion Joints ◽  
Thermal Bridge ◽  
Double Curvature ◽  
Abutment Bridges ◽  
Integral Abutments ◽  
Integral Abutment Bridge ◽  
Lateral Displacements

Integral abutment bridges accommodate thermal superstructure movements through flexible foundations rather than expansion joints. While these structures are a common alternative to conventional design, the literature on measured field stresses in piles supporting integral abutments appears to be quite limited. Therefore, field data from strain gauges installed on the abutment foundation piles of a 76 m long; two-span integral abutment bridge are the focus of this paper. Axial load, weak- and strong-axis bending moments of the foundation piles, as well as abutment movement and backfill response, are presented and discussed. Results indicate that the abutment foundation piles are bending in double curvature about the weak axis, as a result of thermal bridge movements, and bending also about the strong axis due to tilting of the abutments. A simple subgrade modulus approach is used to show its applicability in predicting behaviour under lateral loading. In the past, much emphasis has been placed on the lateral displacements of piles and less on variations of axial load. In this paper, a new hypothesis, which offers insight into the mechanisms behind the observed thermal variations in axial load, is proposed and assessed. The data from the field monitoring are also compared with the limited data reported in the literature.

Fatigue Life of Piles in Integral-Abutment Bridges: Case Study

2013 ◽  
Vol 18 (10) ◽  
pp. 1105-1117 ◽  
Author(s):  
Jafar Razmi ◽  
Leila Ladani ◽  
M. Sherif Aggour
Keyword(s):  
Fatigue Life ◽  
Integral Abutment ◽  
Integral Abutment Bridges ◽  
Abutment Bridges

Integral Abutment Bridges: The European Way

2010 ◽  
Vol 15 (3) ◽  
pp. 201-208 ◽  
Author(s):  
H. White ◽  
H. Pétursson ◽  
P. Collin
Keyword(s):  
Integral Abutment ◽  
Integral Abutment Bridges ◽  
Abutment Bridges
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