Flexural behavior of prestressed composite beams with corrugated web: Part I. Development and analysis

Kim, Kang Su; Lee, Deuck Hang; Choi, Sung Mo; Choi, Yong-Seok; Jung, S.H.

doi:10.1016/j.compositesb.2011.04.020

Cited by 63 publications

(21 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the CWPS composite beam, the prestressing method was introduced for the active control of vertical deflection, and the steel webs were fabricated in a corrugated shape to maximize the accordion effect to enhance the introduction efficiency of prestress. In author's previous studies, it was verified that CWPS composite beams could provide good structural performance at room temperature [2][3][4][5]. For these reasons, as shown in Figure 2, the corrugated webs were applied to other types of composite girders while the key concepts are the same.…”

Section: Introductionmentioning

confidence: 94%

“…However, since the demand for long-span structures over 10 m in span length has been increasing in the building construction industry, the deflection control performance required of such a long span structure may not be fulfilled with a typical SF system. To overcome such structural limitations of the existing SF system, corrugated webbed prestressed (CWPS) composite beams were developed in the authors' previous studies [2][3][4][5], and their structural performances at ambient temperature were verified by tests and analyses. As shown in Figure 1, the proposed CWPS composite beam system has been applied to several building structures.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural Performance of Prestressed Composite Members with Corrugated Webs Exposed to Fire

et al. 2015

View full text Add to dashboard Cite

In this study, to assess the fire performances of corrugated webbed prestressed (CWPS) composite beams exposed to fire, full-scale fire resisting tests were carried out, and fire-resisting behavioural responses of the test specimens were analyzed and compared with those obtained from nonlinear finite element analyses. Key test variables were the cover thickness of the fire protection material applied to the bottom flange of corrugated webbed steel beams, which was directly exposed to fire, and the shapes of corrugated webs. All the composite beams with fire protection material covers exposed to standard fire showed good fire-resisting capacities with fire ratings over 3 h and in particular, CWPS composite beams with relatively thin fire protection material cover thickness, compared with the non-prestressed slim-floor composite beam, satisfied the required fire performance criteria in ISO 834 standard and Eurocode. Additionally, the test results showed that the shape of corrugated webs used in CWPS composite beam specimens could have a great impact on their fire-resisting performance. The nonlinear finite element analyses performed in this study accurately estimated the overall behaviours of test specimens and especially assessed the effects of the shape of the corrugated web on the temperature distributions and fire resistance performances of CWPS composite beams appropriately.

show abstract

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Structural Performance of Prestressed Composite Members with Corrugated Webs Exposed to Fire

et al. 2015

View full text Add to dashboard Cite

show abstract

“…For composite beams, Liu et al [20] studied the flexural strength of simply supported steel-concrete composite beams by tests and numerical analysis; Wang et al [21] proposed bending capacity formulae for the prestressed concrete-encased steel beams according to the tests; Huang et al [22] investigated the behaviour of prestressed CFST truss girders and found out that flexural strength and the failure modes of the girders were influenced by prestressing levels and shear span-to-depth ratios; Kim et al [23,24] tested the flexural performance of prestressed composite beams with corrugated web and introduced a flexural behaviour mechanical model; otherwise, Choy et al [25], Yao et al [26], and Wang et al [27] tested the shear performance of prestressed concrete-encased steel beams, respectively, and the contributions of concrete and embedded H-steels were fully discussed.…”

Section: Introductionmentioning

confidence: 99%

Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete‐Encased CFST Columns

Wang

Luo

2019

Advances in Civil Engineering

View full text Add to dashboard Cite

Four composite joint specimens consisted of concrete-encased steel beams and concrete-encased concrete-filled steel tube (CFST) columns were tested under lateral cyclic loading, in which three specimens were prestressed and the other was not. In the tests, crack distributions and failure modes of the joint specimens were acquired, and the energy dissipation, rigidity degeneration, ductility, and residential deformation were investigated. Meanwhile, the strain variation of longitudinal rebars and I-steel flanges at beam ends as well as steel tubes in panel zones were analysed. The experimental results showed that a type of mixed mode consisting of shear failure in the panel zone and flexural failure at beam ends was found for three prestressed joint specimens, whilst only flexural failure at beam ends was observed for the non-prestressed one, and all joint specimens showed good hysteretic behaviour. In addition, as can be seen from the skeleton curves, the lateral peak loads of prestressed joint specimens could be enhanced to some extent by increasing the prestressing level, and the axial compression ratio had little effect on lateral loads; meanwhile, the ductility and energy dissipation for prestressed joint specimens also could be reduced by increasing the prestressing level and axial compression ratio.

show abstract

“…The introduction efficiency of prestress in a typical steel beam is, however, very low due to its high axial stiffness, and the large out-of-plane deformation along the weak axis of the steel section during prestressing is another concern. In authors' previous studies [9,10], as shown in Figure 2(a), the corrugated webbed prestressed (CWPS) composite member was introduced to overcome these disadvantages, which improves the introduction efficiency of prestress using the accordion effect. A mechanical analysis model was also developed to estimate the accordion effect at the prestressing stage and the flexural behavior of the CWPS member [9].…”

Section: Introductionmentioning

confidence: 99%

Flexural Behavior of Prestressed Steel-Concrete Composite Members with Discontinuous Webs

Lee

Cho

et al. 2015

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The corrugated webbed prestressed (CWPS) composite member was developed to improve the efficiency of the prestress introduced into the steel beam, and experimental studies were performed to examine its structural behavior. Additionally, a unified analysis model that can estimate the nonlinear flexural behavior of the composite member and the accordion effect of the corrugated webbed steel beams at the prestressing stage was proposed. As a consecutive experimental series, in this study, the discontinuous-webbed prestressed (DWPS) composite member was developed, and this innovative composite member can reduce the amount of steel materials used, compared with the former CWPS composite member. Flexural tests were carried out to investigate their structural performances, and their behaviors were analyzed in detail by a nonlinear finite element analysis.

show abstract

Flexural behavior of prestressed composite beams with corrugated web: Part I. Development and analysis

Cited by 63 publications

References 24 publications

Structural Performance of Prestressed Composite Members with Corrugated Webs Exposed to Fire

Structural Performance of Prestressed Composite Members with Corrugated Webs Exposed to Fire

Test on Hysteretic Behaviour of Prestressed Composite Joints with Concrete‐Encased CFST Columns

Flexural Behavior of Prestressed Steel-Concrete Composite Members with Discontinuous Webs

Contact Info

Product

Resources

About