Superstructure Behavior of a Stub-Type Integral Abutment Bridge

David, Thevaneyan Krishta; Forth, John; Ye, Jianqiao

doi:10.1061/(asce)be.1943-5592.0000583

Cited by 10 publications

(2 citation statements)

References 27 publications

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“…Soil-structure interaction is categorized into two components: soil-pile interaction and backfill-abutment interaction. Some studies [12,42] used 2D plane elements to consider the elastoplastic behavior of backfills, but this approach is too expensive to be utilized in 3D models. Thus, based on the backfill properties shown in Table 3, multi-linear springs-within the range of the upper and lower bound defined by the passive and active failure limit-were determined to simulate backfill-abutment interaction, as shown in Figure 6a.…”

Section: Abutment-backfill Interactionmentioning

confidence: 99%

Influence of Construction Joint and Bridge Geometry on Integral Abutment Bridges

et al. 2021

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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.

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Section: Abutment-backfill Interactionmentioning

confidence: 99%

Influence of Construction Joint and Bridge Geometry on Integral Abutment Bridges

et al. 2021

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“…Ayrıca, integral köprüler inşaat maliyeti ve onarım masrafları açısından daha ekonomik olduğu gibi, rijit çerçeve yapıları nedeniyle de sismik yükler altında daha iyi performans göstermektedir [2,3]. Bu tür avantajlarından dolayı integral köprüler Kuzey Amerika'da ve Avrupa'da her geçen gün daha da yaygın olarak inşa edilmekte ve geleneksel köprülerin yerini almaktadırlar [4][5][6]. Gösterdiği üstünlüklere rağmen bu köprüler henüz ülkemizde kullanılmaya başlanmamıştır ancak, önümüzdeki yıllarda uygulanma potansiyeline sahiptir.…”

Section: Introductionunclassified

İntegral Köprülerde Hareketli Yükler Altında Üstyapı Özelliklerinin Kazık Kuvvetlerine Etkisi

Yalçin

2017

Çukurova Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

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ÖzBu çalışmada, integral köprülerin kazıklarında oluşan kuvvetlere hareketli yüklerin etkisi, çeşitli üstyapı parametrelerinin değişimleriyle birlikte incelenmiştir. Bu amaçla, birçok üç boyutlu integral köprünün sonlu elemanlar modelleri kurulmuştur. Bu modellerin analizleri AASHTO LRFD hareketli yükleri altında yapılmıştır. Hareketli yükler en kritik etkileri bulabilmek için köprüler üzerinde enine ve boyuna yönde farklı konumlara yerleştirilmişlerdir. Analizlerde köprü uzunluğu, kiriş boyutu ve aralığı, kiriş adedi, tabliye kalınlığı ve konsol uzunluğu gibi çeşitli üstyapı parametreleri ele alınmıştır. Sonlu elemanlar analizleri sonucunda farklı parametrelere bağlı kazık kuvvetleri elde edilmiştir. Analizler sonucunda, kiriş tipi ve tabliye kalınlığı dışındaki parametrelerinin kazık kuvvetlerini önemli ölçüde etkiledikleri gözlenmiştir. Ayrıca, ele alınan birçok köprüde yükleme durumlarına bağlı olarak bazı kazıklarda çekme kuvveti oluşmuştur.Anahtar Kelimeler: İntegral köprü, Üstyapı, Hareketli yük, Kazık kuvveti Effects of Superstructure Properties on Pile Forces in Straight Integral Bridges under Live Load AbstractIn this study, the effects of truck loads on pile forces for straight integral bridges is investigated together with the variations in superstructure parameters. For this purpose, finite element models of numerous three-dimensional integral bridges are built and the analyses are conducted under AASHTO LRFD live loads. Truck loads are located in various longitudinal and transverse positions on the bridge in order to get the most critical loading. In the analyses, the superstructure parameters such as bridge length, girder type, girder spacing, number of girders, slab thickness and cantilever length are considered and the pile forces for all these bridges are obtained. The analyses results reveal that all the superstructure parameters except girder type and slab length have significant effect on pile forces. Additionally, in almost all bridges, for some load cases tension forces in piles are observed.

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Integral Abutment Bridges: Modelling and Predictive Approaches for Temperature Movements

Li¹,

Bartlett²,

Newson³

2022

Lecture Notes in Civil Engineering

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Superstructure Behavior of a Stub-Type Integral Abutment Bridge

Cited by 10 publications

References 27 publications

Influence of Construction Joint and Bridge Geometry on Integral Abutment Bridges

Influence of Construction Joint and Bridge Geometry on Integral Abutment Bridges

İntegral Köprülerde Hareketli Yükler Altında Üstyapı Özelliklerinin Kazık Kuvvetlerine Etkisi

Integral Abutment Bridges: Modelling and Predictive Approaches for Temperature Movements

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