steel-concrete composite box beam A beam finite element model considering the slip, shear lag, and time-dependent effects of steel–concrete composite box beams have been proposed in this study. The element is employed to a one-dimensional .
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0 · steel concrete composite construction illustration
1 · steel column concrete encasement detail
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steel concrete composite construction illustration
Abstract. Curved steel–concrete composite box beams are widely used in urban overpasses and ramp bridges. In contrast to straight composite beams, curved composite box .A beam finite element model considering the slip, shear lag, and time-dependent .A beam finite element model considering the slip, shear lag, and time-dependent .
This study investigated the flexural behavior of new Box-Profile (BP) shear connectors in composite steel–concrete-steel (SCS) structures. To this end, nine beam .
In this paper, a beam-truss model is introduced for the design analysis of composite box-girder bridges. An integrated research program for beam-truss models, .
A beam finite element model considering the slip, shear lag, and time-dependent effects of steel–concrete composite box beams have been proposed in this study. The element is employed to a one-dimensional . This paper reports the long-term test results of 5 scaled curved composite box beams, including 4 simply supported beams and 1 continuous beam. The span length of the 4 . A model with a beam finite element with 26 degrees of freedom (DOFs) is proposed for curved composite box beams that considers the constrained torsion, distortion, .
Steel-concrete composite beams have been broadly utilized in civil engineering owing to their high ductility, light weight, excellent seismic performance, low construction cost, .
The natural vibration frequencies of many steel–concrete composite box beam calculation samples with different spans, degrees of shear connection, and boundary . A long-term load test of 420 days was performed on three prestressed steel–concrete composite continuous box beams (non-prestressed, partly prestressed, and .
A beam finite element model considering the slip, shear lag, and time-dependent effects of steel–concrete composite box beams have been proposed in this study. The element is employed to a one-dimensional .This study proposes an analytical model taking into account slip and shear-lag effects of a steel-concrete composite box beam. This model introduces five variables, which include vertical displacement, axial displacements as well as warping intensity functions of a concrete slab and a steel beam. Balance differential equations are deduced by the virtual work theorem for three . Two test specimens, named CSCB-1 and CSCB-2, were designed for comparative testing. CSCB-1 is a common composite steel–concrete box beam, while CSCB-2, which is a composite steel–concrete box beam with external tendons, has the same dimensions and materials as that of CSCB-1. Slip of a composite box beam may reduce its stiffness, enlarge its deformation and affect its performance. In this work, the governing differential equations and boundary conditions of composite box beams were established. Analytic solutions of combined differential equations were also established. Partial degree of freedom was adopted to establish a new FEA element .
The ultimate bearing capacity, section strain, and interfacial slip of the steel-concrete composite box beams are measured. The test results show that, the fully connected composite beams mainly . Restrained distortional buckling is an important buckling mode of steel-concrete composite box beams (SCCBB) under the hogging moment. Rotational and lateral deformation restraints of the bottom plate by the webs are essential factors affecting SCCBB distortional buckling. Based on the stationary potential energy principle, the analytical expressions for the .
steel column concrete encasement detail
A beam finite element model considering the slip, shear lag, and time-dependent effects of steel–concrete composite box beams have been proposed in this study. The element is employed to a one-dimensional analytical method that is solved involving an expression of spatial and time-dependent variables. A step-by-step method that does not . The relationship of load-bearing mechanisms between concrete flanges and corrugated steel webs is complicated [36].El-Metwally and Loov [37], [38] studied the division of work among components within composite beams. Shiratani et al. [39] presented that the concrete flange has a restraining effect on the shear buckling deformation of corrugated steel . A beam finite element model considering the slip, shear lag, and time-dependent effects of steel–concrete composite box beams have been proposed in this study. The element is employed to a one-dimensional analytical method that is solved involving an expression of spatial and time-dependent variables. A step-by-step method that does not involve storing the stress . Existing research findings [10], [11] indicate that the longitudinal reinforcement ratio of composite beams was a key factor influencing crack width, and the reinforcement stress is a critical parameter for crack width calculation [12], [13], [14].Su et al. [15] conducted two negative moment static load tests on steel-concrete composite box beams. It was found that an .
As per the Chinese code (CMC 2010 , 2017 ), three curved steel–concrete composite box beams were designed with different central angles and interface shear connection degrees, and the parameters of the three curved composite box beam specimens are shown in Table 1. Each specimen was composed of steel girders and concrete slabs and connected .
A long-term load test of 420 days was performed on three prestressed steel–concrete composite continuous box beams (non-prestressed, partly prestressed, and fully prestressed) to investigate the combined effects of sustained . A long-term load test of 420 days was performed on three prestressed steel-concrete composite continuous box beams (non-prestressed, partly prestressed, and fully prestressed) to investigate the . Two steel-concrete composite I-beams with corrugated steel webs with a total span of 3000 mm and a beam height of 450 mm are designed and fabricated [57], named SCSWG and LCSWG. As the key part of a series of shear experiments on steel-concrete composite I-beams with corrugated steel webs, previous research [58] tested a beam named CWG. Steel-concrete composite box-girder bridges are increasingly and widely utilized as a new type of bridge structure because they can fully utilize the compressive strength of concrete slabs and the tensile strength of steel beams. The steel-concrete composite box-girder bridge is called a ‘thin-walled structure’, and is composed of several .
1. Introduction. Compared with ordinary reinforced concrete beams, steel–concrete composite beams exhibit the advantages of light weight, small cross-section, good ductility, and high seismic resistance [1,2,3].Since the 20th century, steel–concrete composite beams have been widely used in bridge structures [4,5].In this engineering background, fatigue damage is . Each T-joint is designed with a 3.3 m-long steel box column (Q235, 250 × 250 × 16 mm 3) and a 3.5 m-long steel-concrete composite beam. The concrete slab adopted C30 concrete with dimensions of 3180 × 1000 × 120 mm 3 in length × width × depth. Two directional steel reinforcements using HRB400 Φ16 mm rebars with a spacing of 180 mm was .
Mega composite structure systems have been widely used in high rise buildings in China. Compared to other structures, this type of composite structure systems has a larger cross-section with less weight. Concrete filled . A beam finite element model considering the slip, shear lag, and time-dependent effects of steel‒concrete composite box beams have been proposed in this study. The element is employed to a one . Fan JS, Liu YF, Liu C (2021) Experiment study and refined modeling of temperature field of steel-concrete composite beam bridges. Engineering Structures 240: 112350. Crossref
Steel-concrete composite beams with shear studs providing composite action between the concrete slabs and steel beams are widely used in modern steel-framed building construction. . The composite beams tested by Wu et al. [17] had an S30408 stainless steel box beam. A set of double- row Φ13 × 100 mm headed studs were welded on the upper .
In order to investigate dynamic characteristics of steel-concrete composite box beams, a longitudinal warping function of beam section considering self-balancing of axial forces is established. On .
Curved steel–concrete composite box beams are widely used in urban overpasses and ramp bridges. In contrast to straight composite beams, curved composite box beams exhibit complex mechanical . The structural behavior of steel-concrete composite beams under pure negative bending or torsion has been investigated by many researchers, such as Ko et al. (2013), Ahmed and Ahmed (2015), Zivner et al. (2016), Wang et al. (2018), Liu et al. (2019), and Liu et al. (2019).In recent years, both experimental and numerical studies have been performed to . Experimental studies on the behaviors of box-shape steel reinforced concrete (SRC) composite beams were conducted. Seven 1:3 scale model composite beams were tested to failure. The corrugated steel web (CSW) composite box beam utilizes a CSW instead of the conventional concrete web to reduce the overall weight of the structure and address issues related to web cracking [1]. This innovative approach provides a sustainable and cost-effective solution for bridge construction.
Composite girder bridges with Corrugated Steel s (CSWs) have won increasing popularity among bridge designers owing to its exceptional mechanical properties. The extant literature focuses on the static and dynamic performance of girder bridges with CSWs, there is limited research on the mechanical performance of such structures under high . This study investigated the flexural behavior of new box-profile (BP) shear connectors in composite steel–concrete-steel (SCS) structures. To this end, nine beam specimens were fabricated and tested to evaluate the flexural and shear behaviors of BP shear connectors. The effects of geometric parameters, including the concrete core thickness, steel .
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