State of the art on the time-dependent behaviour of composite steel–concrete structures

Ranzi, Gianluca; Leoni, Graziano; Zandonini, Riccardo

doi:10.1016/j.jcsr.2012.08.005

Cited by 95 publications

(41 citation statements)

References 90 publications

(122 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although this structure system has been successfully practiced many times worldwide, few of them were constructed by incremental launching method. Construction method has direct influence on structure's stress [3,4]. There are drastic girder stress state differences between incremental launching method and other constructional methods.…”

Section: Introductionmentioning

confidence: 99%

Effects on Mechanical Behavior in Incremental Launching Method of Pre-stressed Concrete Composite Box Girder With Corrugated Steel Webs

Fan¹,

Liang²,

Gao³

et al. 2017

dtmse

View full text Add to dashboard Cite

During construction, bridge's stress state is significantly different from that in finished stage. The stress state of construction process may be much more danger when incremental launching method is applied. To analyze differences between the stress state of finished state and that in construction process, mechanical calculation was conducted based on an actual integral incremental launching constructed long-span pre-stressed composite concrete box girder with corrugated steel webs, applying solid-shell model to elaborately explore mechanical characteristics in each stage. Research reveals stress variations of different segments' concrete bottom plates and variations of supports' reaction forces, demonstrating that the majority of the girder may suffer worse inner force state during construction, compared to the finished state.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects on Mechanical Behavior in Incremental Launching Method of Pre-stressed Concrete Composite Box Girder With Corrugated Steel Webs

Fan¹,

Liang²,

Gao³

et al. 2017

dtmse

View full text Add to dashboard Cite

show abstract

“…In particular, the drying shrinkage profile through the slab thickness (which is greatly affected by the impermeable steel decking) and the restraint to shrinkage provided by the steel decking have only recently been quantified (Gilbert et al 2012;Ranzi et al 2012;Al-deen and Ranzi 2015;Al-Deen et al 2011;Ranzi et al 2013). Carrier et al (1975) measured the moisture contents of two bridge decks, one was a composite slab with profiled steel decking and the other was a conventional reinforced concrete slab permitted to dry from the top and bottom surfaces after the timber forms were removed.…”

Section: Introductionmentioning

confidence: 99%

“…In their research, Gilbert et al (2012) measured the nonlinear variation of shrinkage strain through the thickness of several slab specimens, with and without steel decking at the soffit, and sealed on all exposed concrete surfaces except for the top surface. Ranzi et al (2012) carried out long-term tests on a post-tensioned solid concrete slab and two composite slabs with two different steel decking types and also measured the occurrence of non-uniform shrinkage strain through the thickness of the two composite slabs. Bradford (2010) presented a generic model for composite slabs subjected to concrete creep and two types of indirect (or non-mechanical) straining effects; shrinkage and thermal strains; including the effects of partial interaction between the concrete slab and steel decking.…”

Section: Introductionmentioning

confidence: 99%

Modified creep and shrinkage prediction model B3 for serviceability limit state analysis of composite slabs

Gholamhoseini

2016

Int J Adv Struct Eng

View full text Add to dashboard Cite

Relatively little research has been reported on the time-dependent in-service behavior of composite concrete slabs with profiled steel decking as permanent formwork and little guidance is available for calculating long-term deflections. The drying shrinkage profile through the thickness of a composite slab is greatly affected by the impermeable steel deck at the slab soffit, and this has only recently been quantified. This paper presents the results of long-term laboratory tests on composite slabs subjected to both drying shrinkage and sustained loads. Based on laboratory measurements, a design model for the shrinkage strain profile through the thickness of a slab is proposed. The design model is based on some modifications to an existing creep and shrinkage prediction model B3. In addition, an analytical model is developed to calculate the time-dependent deflection of composite slabs taking into account the time-dependent effects of creep and shrinkage. The calculated deflections are shown to be in good agreement with the experimental measurements.

show abstract

“…A variety of commercial products that combines different materials into concrete composites are available. The most common combination of materials is steel-concrete composites (Johnson 2004;Oehlers and Bradford 1999;Yam and Yam 1981). A much used and welldocumented application is steel-concrete composite columns (Elnashai et al 1990;Ranzi et al 2013;Shams and Saadeghvaziri 1997;Shanmugam and Lakshmi 2001).…”

Section: Introductionmentioning

confidence: 99%

“…The most common combination of materials is steel-concrete composites (Johnson 2004;Oehlers and Bradford 1999;Yam and Yam 1981). A much used and welldocumented application is steel-concrete composite columns (Elnashai et al 1990;Ranzi et al 2013;Shams and Saadeghvaziri 1997;Shanmugam and Lakshmi 2001). These columns have advantages with respect to the fire requirements of the steel member: those of permanent formwork leads to an efficient construction phase, as well as a reduction or elimination of problems with a local buckling of the steel.…”

Section: Introductionmentioning

confidence: 99%

Structural behaviour of layered beams with fibre-reinforced LWAC and normal density concrete

Nes

Øverli

2015

Mater Struct

View full text Add to dashboard Cite

The hybrid concrete structures investigated in this project were beams composed of two layers of different types of concrete. Normal density concrete (NC) was used in the top layer combined with a layer of fibre-reinforced lightweight concrete (FRLWC). Hence, the beams had a low weight and the NC layer fulfilled the requirements for ductility in compression. The material properties of the FRLWC were investigated through small-scale tests, the uniaxial tension test, the 3-point bending test and a compressive test on concrete cylinders/cubes. The small-scale tests constituted the basis for obtaining design parameters used in the design of the larger hybrid beams. These beams had 0.5% and 1.0% of steel fibres, and were subjected to a 4-point bending test in order to study the performance in terms of both shear and bending actions. Fibre counting was carried out in order to relate the performance to the number of fibres crossing the critical section, which turned out to have a considerable influence on the performance of the FRLWC. In general, the types of failure were as expected.This study shows that the concept of combining NC and FRLWC in one crosssection shows promising results, and no problem with the bond between the layers of concrete was registered. Steel fibre reinforcement of the lightweight concrete increased the ductility in tension, so the amount of conventional shear reinforcement could be reduced. The concept provides a low self-weight of the structure, practical solutions in the construction phase and good premises for more efficient building.2

show abstract

State of the art on the time-dependent behaviour of composite steel–concrete structures

Cited by 95 publications

References 90 publications

Effects on Mechanical Behavior in Incremental Launching Method of Pre-stressed Concrete Composite Box Girder With Corrugated Steel Webs

Effects on Mechanical Behavior in Incremental Launching Method of Pre-stressed Concrete Composite Box Girder With Corrugated Steel Webs

Modified creep and shrinkage prediction model B3 for serviceability limit state analysis of composite slabs

Structural behaviour of layered beams with fibre-reinforced LWAC and normal density concrete

Contact Info

Product

Resources

About