Geosynthetic Reinforced Soil Integrated Abutments at the Bowman Road Bridge in Defiance County, Ohio

Adams, Michael T.; Schlatter, Warren; Stabile, Thomas

doi:10.1061/40909(228)12

Cited by 30 publications

(28 citation statements)

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“…In general, the structural components of a GRS IBS include a tightly spaced reinforced soil foundation, the GRS abutment (i.e. reinforcement placed every block height), and the GRS integrated approach as displayed in Figure 1(a) and outlined by Adams et al (2011a), Adams et al (2011b), and Adams et al (2007). It is important to use quality backfill and ensure excellent compaction.…”

Section: Introductionmentioning

confidence: 99%

Three-Year Evaluation of Thermally Induced Strain and Corresponding Lateral End Pressures for a GRS IBS in Ohio

Warren

Whelan

Hite

et al. 2014

Geo-Congress 2014 Technical Papers

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Geosynthetic-Reinforced Soil (GRS) Integrated Bridge Systems (IBS) integrate conventional bridge superstructures with a GRS abutment foundation and GRS approach for a cost effective, rapid construction alternative. A 42.7 m long single span GRS IBS was constructed and instrumented to monitor the thermally induced behaviors and better understand the interaction between the superstructure and substructure within the limits of this system. Strain gages were attached to the steel girders and lateral end pressures were monitored using earth pressure cells to determine the level of stress thermally induced in the GRS approach over a 3.5 year monitoring period and evaluate the rigidity of the boundary conditions that exist at the interface. During this 3.5 year monitoring period, the data show that the GRS approach is engaged with the superstructure, and experiences both active and passive lateral pressures during each thermal cycle without displaying an increase in passive pressure with time. The stress-strain data acquired during this project indicate that the GRS IBS is behaving significantly more like a system with unrestrained boundaries due to the flexibility of the GRS approach at each end. The tightly spaced reinforcements create a composite material at the ends of the superstructure that enable the approach fill to move successfully with thermally induced superstructure deformations without creating a failure within the soil or at the surface of the roadway (interface included).

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Section: Introductionmentioning

confidence: 99%

Three-Year Evaluation of Thermally Induced Strain and Corresponding Lateral End Pressures for a GRS IBS in Ohio

Warren

Whelan

Hite

et al. 2014

Geo-Congress 2014 Technical Papers

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“…Mechanically stabilized earth using geosynthetic (GMSE) is the reinforced soil with larger reinforcement spacing, which is commonly seen in reinforced structures such as retaining walls, railway subgrades, slopes, etc. According to the research of Adams et al (2007a;2007b), Keller and Devin (2003), and Saghebfar et al (2017), compared with GMSE, GRS shows advantages in higher strength, lower lateral deformation and tolerance of differential settlements due to its smaller reinforcement spacing and better compaction of backfill material. Recently, usage of GRS technology in bridge-supporting structures have been extensively increased, particularly for small single-span bridges (Adams et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of reinforcement spacing on the performance of bridge abutment by scaled model test

Yang

Luo

2020

JGS Special Publication

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Recently, construction of GRS (Geosynthetic reinforced soil) structures with closely spaced layers of geosynthetic reinforcement has been increased significantly. In order to achieve direct comparison between GRS structures and the conventional mechanically stabilized earth structures using geosynthetic (GMSE) under the same working condition, three model tests with a bridge abutment as a prototype were designed in this research. Under the vertical load of 100 kPa in simulating the weight of the bridge deck, important parameters such as stresses and deformations of the model abutment were measured, and the effect of reinforcement spacing on the performance of different reinforced soil structures was evaluated. According the test results, the overall better performance of GRS abutment was proved in terms of measured strains and stresses. In addition, comparisons were made between the measurements and the analytical predictions following solutions available in literature, and the accuracy as well as limitations of different calculation methods was discussed.

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“…Furthermore, these types of abutments are usually implemented for single span bridges. It is important to emphasize that about 80% of the over 600,000 bridges in the U.S. national inventory are single span bridges 21 to 27 meters in length (Adams et al 2007). It has been recognized, therefore, that a sound countermeasure concept and better design guidelines need to be developed to protect bridge abutments that are built on shallow foundations from scour damage.…”

Section: Introductionmentioning

confidence: 99%

Shallow foundations for the support of vertical-wall bridge abutments: Interaction between riprap and contraction scour

et al. 2016

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The database from flume experiments focused on the performance of riprap layouts based on field installations and FHWA HEC-23 design guidelines against clear-water abutment scour combined with Computational Fluid Dynamics (CFD) is used to investigate how flow fields at single span bridge openings, dominated by flow contraction, adjust in response to variations of bed roughness and cross-section geometry due to riprap installations. These adjustments increase bed shear stress magnitudes on the unprotected erodible bed leading to underestimated contraction scour depths therefore creating instability, and ultimately causing edge failure of the riprap. Based on the combined physical/numerical modeling approach an edge failureresistant riprap layout is proposed. Furthermore, the CFD approach provides an insight into shear stress magnitudes within a nonuniform bed roughness in the bridge opening, and a comprehensive flowdepth-riprap interaction model to define limits for "hydraulically narrow" bridge openings that might be prone to edge failure of the scour protecting riprap.

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Geosynthetic Reinforced Soil Integrated Abutments at the Bowman Road Bridge in Defiance County, Ohio

Cited by 30 publications

References 0 publications

Three-Year Evaluation of Thermally Induced Strain and Corresponding Lateral End Pressures for a GRS IBS in Ohio

Three-Year Evaluation of Thermally Induced Strain and Corresponding Lateral End Pressures for a GRS IBS in Ohio

Effect of reinforcement spacing on the performance of bridge abutment by scaled model test

Shallow foundations for the support of vertical-wall bridge abutments: Interaction between riprap and contraction scour

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