Analysis of a river bank, levee, or floodplain I-Wall embedded in stratified soil layers during flood events using Corps_I-Wall (CI-Wall) Version 2.0

Ebeling, Robert M.; White, Barry C; Fong, Moira T.

doi:10.21079/11681/31502

Cited by 2 publications

(10 citation statements)

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“…In Figure 34, the pressure terms P1, P2, P3, and P4 are shown acting on the vertical-lift gate. The location of the lateral equivalent force (hLat) can be determined using the one-third/one-sixth method developed by Ebeling et al (2018) and also presented in Section 2.3.2.4 of this report. .…”

Section: Hydrodynamic Load For Stgs With Tailwater Less Than the Gate...mentioning

confidence: 99%

“…In The location of the lateral equivalent force (hLat) can be determined using the one-third/one-sixth method developed by Ebeling et al (2018) and also presented in Chapter 2, Section 2.3.2.4, of this report. By applying this method for the lateral forces and summing moments about point 3, Equation (A.14), repeated here, was developed: Table C-4 shows the wave heights and wave periods used to compute the wave forces and pressure distributions determined from the wind speed analysis at the R. C. Byrd project.…”

Section: Somentioning

confidence: 99%

“…In this case, because η* < hc, h4 is equal to h1 + η*. The location of the lateral equivalent force (hLat) can be determined using the one-third/one-sixth method developed by Ebeling et al (2018) and presented in Chapter 2, Section 2.3.2.4, of this report. By applying this method for the lateral forces and summing moments about point 3, Equation (A.14), which is repeated here, was developed: The wave forces and pressure distributions computed from Goda's (2010) procedure for the data in For gates varying considerably from the type shown in the report, initial load estimates prior to completion of a model study can be calculated assuming a linear profile between pool-to-pool water elevations across the channel side face of the total projected width of the miter beam, skin plate rib, and seal bracket and the reverse head water elevation on the recess side of the same components.…”

Section: D36 Wave Load From Goda For the Calcasieu Lock East Sector Gatementioning

confidence: 99%

“…In , the pressure terms P1, P3, and P4 are shown acting on the vertical-lift gates; these are similar to the ND/GB. The location of the lateral equivalent force (hLat) can be determined using the one-third/one-sixth method developed by Ebeling et al (2018) Table I-4 contains the wave heights and wave periods used for computing the wave forces and pressure distributions determined from the wind speed analysis at the Chickamauga Lock upper ND/GB. Table I-6 shows the wave forces and pressure distributions computed from Goda's (2010) procedure for the data in the table.…”

Section: I133 Extreme Value Estimation Using Maximum 09 Hr Average Ye...mentioning

confidence: 99%

“…Ebeling et al (2018) and also presented in Chapter 2, Section 2.3.2.4, of this report. By applying this method for the lateral forces and summing moments about point 3, Equation (A-14) was developed:…”

mentioning

confidence: 95%

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Hydraulic load definitions for use in Load and Resistance Factor Design (LRFD) analysis, including probabilistic load characterization, of 10 hydraulic steel structures : report number 1

Hite,

Ebeling,

White

2024

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In the past, allowable stress design (ASD) was used to design steel structures. The allowable stresses used were determined from previous practice, with limited understanding of the reliability and risk performance provided by the structure. Engineering methods based on Load and Resistance Factor Design (LRFD) provide more accurate lifetime models of structures by providing risk-based load factors. Besides improved safety, cost savings can be provided through improved performance and, in some cases, by delaying rehabilitation. This research project develops LRFD-based engineering procedures for the evaluation and design of hydraulic steel structures (HSS). Hydraulic loads are a key element to the LRFD analysis. This report identifies the primary hydraulic loads and describes procedures that can be used to determine these hydraulic loads. Existing design guidance for HSS is described and presented in the individual chapters. The appendixes to the report provide examples of the procedures used to compute the hydrostatic, wave, and hydrodynamic loads. A new approach for determining wind-induced wave loads was developed. Design guidance for computing the hydrodynamic load was limited for many of the HSS. Additional research is recommended to improve capabilities for computing hydraulic loads. Details on these recommendations can be found in this report.

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Section: Hydrodynamic Load For Stgs With Tailwater Less Than the Gate...mentioning

confidence: 99%

Section: Somentioning

confidence: 99%

Section: D36 Wave Load From Goda For the Calcasieu Lock East Sector Gatementioning

confidence: 99%

Section: I133 Extreme Value Estimation Using Maximum 09 Hr Average Ye...mentioning

confidence: 99%

mentioning

confidence: 95%

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Hydraulic load definitions for use in Load and Resistance Factor Design (LRFD) analysis, including probabilistic load characterization, of 10 hydraulic steel structures : report number 1

Hite,

Ebeling,

White

2024

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Load and resistance factors from reliability analysis Probability of Unsatisfactory Performance (PUP) of flood mitigation, batter pile-founded T-Walls given a target reliability index (𝛽)

Ebeling¹,

White²,

Hite³

et al. 2023

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This technical report documents the research and development (R&D) study in support of the development of a combined Load and Resistance Factor Design (LRFD) methodology that accommodates both geotechnical and structural design limit states for design of the US Army Corps of Engineers (USACE) batter pile-founded, reinforced concrete flood walls. Development of the required reliability and corresponding LRFD procedures has been progressing slowly in the geotechnical topic area as compared to those for structural limit state considerations, and therefore this has been the focus of this first-phase R&D effort. This R&D effort extends reliability procedures developed for other non-USACE structural systems, primarily bridges and buildings, for use in the design of batter pile-founded USACE flood walls. Because the foundation system includes batter piles under flood loading, the design procedure involves frame analysis with significant soil structure interaction. Three example batter pile-founded T-Wall flood structures on three different rivers have been examined considering 10 geotechnical and structural limit states. Numerical procedures have been extended to develop precise multiple limit state Reliability calculations and for complete LRFD analysis of the example batter pile-founded, T-Wall reinforced concrete, flood walls.

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Analysis of a river bank, levee, or floodplain I-Wall embedded in stratified soil layers during flood events using Corps_I-Wall (CI-Wall) Version 2.0

Cited by 2 publications

References 0 publications

Hydraulic load definitions for use in Load and Resistance Factor Design (LRFD) analysis, including probabilistic load characterization, of 10 hydraulic steel structures : report number 1

Hydraulic load definitions for use in Load and Resistance Factor Design (LRFD) analysis, including probabilistic load characterization, of 10 hydraulic steel structures : report number 1

Load and resistance factors from reliability analysis Probability of Unsatisfactory Performance (PUP) of flood mitigation, batter pile-founded T-Walls given a target reliability index (𝛽)

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